'use strict';

var fs$r = require('fs');
var path$t = require('path');
var require$$0$b = require('events');
var require$$0$6 = require('util');
var require$$0$a = require('stream');
var require$$0$5 = require('os');
var perf_hooks = require('perf_hooks');
var require$$0$8 = require('url');
var require$$1 = require('crypto');
var require$$0$7 = require('module');
var esbuild = require('esbuild');
var require$$1$1 = require('worker_threads');
var require$$5 = require('assert');
var require$$1$4 = require('child_process');
var readline = require('readline');
var require$$0$9 = require('zlib');
var resolve$4 = require('resolve');
var qs = require('querystring');
var require$$0$4 = require('tty');
var require$$3 = require('net');
var require$$1$2 = require('http');
var require$$0$c = require('buffer');
var require$$1$3 = require('https');
var require$$4 = require('tls');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e["default"] : e; }

function _interopNamespace(e) {
	if (e && e.__esModule) return e;
	var n = Object.create(null);
	if (e) {
		for (var k in e) {
			n[k] = e[k];
		}
	}
	n["default"] = e;
	return n;
}

var fs__default = /*#__PURE__*/_interopDefaultLegacy(fs$r);
var fs__namespace = /*#__PURE__*/_interopNamespace(fs$r);
var path__default = /*#__PURE__*/_interopDefaultLegacy(path$t);
var require$$0__default$5 = /*#__PURE__*/_interopDefaultLegacy(require$$0$b);
var require$$0__default$2 = /*#__PURE__*/_interopDefaultLegacy(require$$0$6);
var require$$0__default$4 = /*#__PURE__*/_interopDefaultLegacy(require$$0$a);
var require$$0__default$1 = /*#__PURE__*/_interopDefaultLegacy(require$$0$5);
var require$$0__default$6 = /*#__PURE__*/_interopDefaultLegacy(require$$0$8);
var require$$1__default$2 = /*#__PURE__*/_interopDefaultLegacy(require$$1);
var require$$0__default$3 = /*#__PURE__*/_interopDefaultLegacy(require$$0$7);
var require$$1__default = /*#__PURE__*/_interopDefaultLegacy(require$$1$1);
var require$$5__default = /*#__PURE__*/_interopDefaultLegacy(require$$5);
var require$$1__default$4 = /*#__PURE__*/_interopDefaultLegacy(require$$1$4);
var readline__default = /*#__PURE__*/_interopDefaultLegacy(readline);
var require$$0__default$7 = /*#__PURE__*/_interopDefaultLegacy(require$$0$9);
var resolve__default = /*#__PURE__*/_interopDefaultLegacy(resolve$4);
var qs__namespace = /*#__PURE__*/_interopNamespace(qs);
var require$$0__default = /*#__PURE__*/_interopDefaultLegacy(require$$0$4);
var require$$3__default = /*#__PURE__*/_interopDefaultLegacy(require$$3);
var require$$1__default$1 = /*#__PURE__*/_interopDefaultLegacy(require$$1$2);
var require$$0__default$8 = /*#__PURE__*/_interopDefaultLegacy(require$$0$c);
var require$$1__default$3 = /*#__PURE__*/_interopDefaultLegacy(require$$1$3);
var require$$4__default = /*#__PURE__*/_interopDefaultLegacy(require$$4);

var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

function getAugmentedNamespace(n) {
	if (n.__esModule) return n;
	var a = Object.defineProperty({}, '__esModule', {value: true});
	Object.keys(n).forEach(function (k) {
		var d = Object.getOwnPropertyDescriptor(n, k);
		Object.defineProperty(a, k, d.get ? d : {
			enumerable: true,
			get: function () {
				return n[k];
			}
		});
	});
	return a;
}

function commonjsRequire (path) {
	throw new Error('Could not dynamically require "' + path + '". Please configure the dynamicRequireTargets or/and ignoreDynamicRequires option of @rollup/plugin-commonjs appropriately for this require call to work.');
}

var ansiStyles$2 = {exports: {}};

var colorName$1 = {
	"aliceblue": [240, 248, 255],
	"antiquewhite": [250, 235, 215],
	"aqua": [0, 255, 255],
	"aquamarine": [127, 255, 212],
	"azure": [240, 255, 255],
	"beige": [245, 245, 220],
	"bisque": [255, 228, 196],
	"black": [0, 0, 0],
	"blanchedalmond": [255, 235, 205],
	"blue": [0, 0, 255],
	"blueviolet": [138, 43, 226],
	"brown": [165, 42, 42],
	"burlywood": [222, 184, 135],
	"cadetblue": [95, 158, 160],
	"chartreuse": [127, 255, 0],
	"chocolate": [210, 105, 30],
	"coral": [255, 127, 80],
	"cornflowerblue": [100, 149, 237],
	"cornsilk": [255, 248, 220],
	"crimson": [220, 20, 60],
	"cyan": [0, 255, 255],
	"darkblue": [0, 0, 139],
	"darkcyan": [0, 139, 139],
	"darkgoldenrod": [184, 134, 11],
	"darkgray": [169, 169, 169],
	"darkgreen": [0, 100, 0],
	"darkgrey": [169, 169, 169],
	"darkkhaki": [189, 183, 107],
	"darkmagenta": [139, 0, 139],
	"darkolivegreen": [85, 107, 47],
	"darkorange": [255, 140, 0],
	"darkorchid": [153, 50, 204],
	"darkred": [139, 0, 0],
	"darksalmon": [233, 150, 122],
	"darkseagreen": [143, 188, 143],
	"darkslateblue": [72, 61, 139],
	"darkslategray": [47, 79, 79],
	"darkslategrey": [47, 79, 79],
	"darkturquoise": [0, 206, 209],
	"darkviolet": [148, 0, 211],
	"deeppink": [255, 20, 147],
	"deepskyblue": [0, 191, 255],
	"dimgray": [105, 105, 105],
	"dimgrey": [105, 105, 105],
	"dodgerblue": [30, 144, 255],
	"firebrick": [178, 34, 34],
	"floralwhite": [255, 250, 240],
	"forestgreen": [34, 139, 34],
	"fuchsia": [255, 0, 255],
	"gainsboro": [220, 220, 220],
	"ghostwhite": [248, 248, 255],
	"gold": [255, 215, 0],
	"goldenrod": [218, 165, 32],
	"gray": [128, 128, 128],
	"green": [0, 128, 0],
	"greenyellow": [173, 255, 47],
	"grey": [128, 128, 128],
	"honeydew": [240, 255, 240],
	"hotpink": [255, 105, 180],
	"indianred": [205, 92, 92],
	"indigo": [75, 0, 130],
	"ivory": [255, 255, 240],
	"khaki": [240, 230, 140],
	"lavender": [230, 230, 250],
	"lavenderblush": [255, 240, 245],
	"lawngreen": [124, 252, 0],
	"lemonchiffon": [255, 250, 205],
	"lightblue": [173, 216, 230],
	"lightcoral": [240, 128, 128],
	"lightcyan": [224, 255, 255],
	"lightgoldenrodyellow": [250, 250, 210],
	"lightgray": [211, 211, 211],
	"lightgreen": [144, 238, 144],
	"lightgrey": [211, 211, 211],
	"lightpink": [255, 182, 193],
	"lightsalmon": [255, 160, 122],
	"lightseagreen": [32, 178, 170],
	"lightskyblue": [135, 206, 250],
	"lightslategray": [119, 136, 153],
	"lightslategrey": [119, 136, 153],
	"lightsteelblue": [176, 196, 222],
	"lightyellow": [255, 255, 224],
	"lime": [0, 255, 0],
	"limegreen": [50, 205, 50],
	"linen": [250, 240, 230],
	"magenta": [255, 0, 255],
	"maroon": [128, 0, 0],
	"mediumaquamarine": [102, 205, 170],
	"mediumblue": [0, 0, 205],
	"mediumorchid": [186, 85, 211],
	"mediumpurple": [147, 112, 219],
	"mediumseagreen": [60, 179, 113],
	"mediumslateblue": [123, 104, 238],
	"mediumspringgreen": [0, 250, 154],
	"mediumturquoise": [72, 209, 204],
	"mediumvioletred": [199, 21, 133],
	"midnightblue": [25, 25, 112],
	"mintcream": [245, 255, 250],
	"mistyrose": [255, 228, 225],
	"moccasin": [255, 228, 181],
	"navajowhite": [255, 222, 173],
	"navy": [0, 0, 128],
	"oldlace": [253, 245, 230],
	"olive": [128, 128, 0],
	"olivedrab": [107, 142, 35],
	"orange": [255, 165, 0],
	"orangered": [255, 69, 0],
	"orchid": [218, 112, 214],
	"palegoldenrod": [238, 232, 170],
	"palegreen": [152, 251, 152],
	"paleturquoise": [175, 238, 238],
	"palevioletred": [219, 112, 147],
	"papayawhip": [255, 239, 213],
	"peachpuff": [255, 218, 185],
	"peru": [205, 133, 63],
	"pink": [255, 192, 203],
	"plum": [221, 160, 221],
	"powderblue": [176, 224, 230],
	"purple": [128, 0, 128],
	"rebeccapurple": [102, 51, 153],
	"red": [255, 0, 0],
	"rosybrown": [188, 143, 143],
	"royalblue": [65, 105, 225],
	"saddlebrown": [139, 69, 19],
	"salmon": [250, 128, 114],
	"sandybrown": [244, 164, 96],
	"seagreen": [46, 139, 87],
	"seashell": [255, 245, 238],
	"sienna": [160, 82, 45],
	"silver": [192, 192, 192],
	"skyblue": [135, 206, 235],
	"slateblue": [106, 90, 205],
	"slategray": [112, 128, 144],
	"slategrey": [112, 128, 144],
	"snow": [255, 250, 250],
	"springgreen": [0, 255, 127],
	"steelblue": [70, 130, 180],
	"tan": [210, 180, 140],
	"teal": [0, 128, 128],
	"thistle": [216, 191, 216],
	"tomato": [255, 99, 71],
	"turquoise": [64, 224, 208],
	"violet": [238, 130, 238],
	"wheat": [245, 222, 179],
	"white": [255, 255, 255],
	"whitesmoke": [245, 245, 245],
	"yellow": [255, 255, 0],
	"yellowgreen": [154, 205, 50]
};

/* MIT license */

/* eslint-disable no-mixed-operators */
const cssKeywords$1 = colorName$1;

// NOTE: conversions should only return primitive values (i.e. arrays, or
//       values that give correct `typeof` results).
//       do not use box values types (i.e. Number(), String(), etc.)

const reverseKeywords$1 = {};
for (const key of Object.keys(cssKeywords$1)) {
	reverseKeywords$1[cssKeywords$1[key]] = key;
}

const convert$3 = {
	rgb: {channels: 3, labels: 'rgb'},
	hsl: {channels: 3, labels: 'hsl'},
	hsv: {channels: 3, labels: 'hsv'},
	hwb: {channels: 3, labels: 'hwb'},
	cmyk: {channels: 4, labels: 'cmyk'},
	xyz: {channels: 3, labels: 'xyz'},
	lab: {channels: 3, labels: 'lab'},
	lch: {channels: 3, labels: 'lch'},
	hex: {channels: 1, labels: ['hex']},
	keyword: {channels: 1, labels: ['keyword']},
	ansi16: {channels: 1, labels: ['ansi16']},
	ansi256: {channels: 1, labels: ['ansi256']},
	hcg: {channels: 3, labels: ['h', 'c', 'g']},
	apple: {channels: 3, labels: ['r16', 'g16', 'b16']},
	gray: {channels: 1, labels: ['gray']}
};

var conversions$5 = convert$3;

// Hide .channels and .labels properties
for (const model of Object.keys(convert$3)) {
	if (!('channels' in convert$3[model])) {
		throw new Error('missing channels property: ' + model);
	}

	if (!('labels' in convert$3[model])) {
		throw new Error('missing channel labels property: ' + model);
	}

	if (convert$3[model].labels.length !== convert$3[model].channels) {
		throw new Error('channel and label counts mismatch: ' + model);
	}

	const {channels, labels} = convert$3[model];
	delete convert$3[model].channels;
	delete convert$3[model].labels;
	Object.defineProperty(convert$3[model], 'channels', {value: channels});
	Object.defineProperty(convert$3[model], 'labels', {value: labels});
}

convert$3.rgb.hsl = function (rgb) {
	const r = rgb[0] / 255;
	const g = rgb[1] / 255;
	const b = rgb[2] / 255;
	const min = Math.min(r, g, b);
	const max = Math.max(r, g, b);
	const delta = max - min;
	let h;
	let s;

	if (max === min) {
		h = 0;
	} else if (r === max) {
		h = (g - b) / delta;
	} else if (g === max) {
		h = 2 + (b - r) / delta;
	} else if (b === max) {
		h = 4 + (r - g) / delta;
	}

	h = Math.min(h * 60, 360);

	if (h < 0) {
		h += 360;
	}

	const l = (min + max) / 2;

	if (max === min) {
		s = 0;
	} else if (l <= 0.5) {
		s = delta / (max + min);
	} else {
		s = delta / (2 - max - min);
	}

	return [h, s * 100, l * 100];
};

convert$3.rgb.hsv = function (rgb) {
	let rdif;
	let gdif;
	let bdif;
	let h;
	let s;

	const r = rgb[0] / 255;
	const g = rgb[1] / 255;
	const b = rgb[2] / 255;
	const v = Math.max(r, g, b);
	const diff = v - Math.min(r, g, b);
	const diffc = function (c) {
		return (v - c) / 6 / diff + 1 / 2;
	};

	if (diff === 0) {
		h = 0;
		s = 0;
	} else {
		s = diff / v;
		rdif = diffc(r);
		gdif = diffc(g);
		bdif = diffc(b);

		if (r === v) {
			h = bdif - gdif;
		} else if (g === v) {
			h = (1 / 3) + rdif - bdif;
		} else if (b === v) {
			h = (2 / 3) + gdif - rdif;
		}

		if (h < 0) {
			h += 1;
		} else if (h > 1) {
			h -= 1;
		}
	}

	return [
		h * 360,
		s * 100,
		v * 100
	];
};

convert$3.rgb.hwb = function (rgb) {
	const r = rgb[0];
	const g = rgb[1];
	let b = rgb[2];
	const h = convert$3.rgb.hsl(rgb)[0];
	const w = 1 / 255 * Math.min(r, Math.min(g, b));

	b = 1 - 1 / 255 * Math.max(r, Math.max(g, b));

	return [h, w * 100, b * 100];
};

convert$3.rgb.cmyk = function (rgb) {
	const r = rgb[0] / 255;
	const g = rgb[1] / 255;
	const b = rgb[2] / 255;

	const k = Math.min(1 - r, 1 - g, 1 - b);
	const c = (1 - r - k) / (1 - k) || 0;
	const m = (1 - g - k) / (1 - k) || 0;
	const y = (1 - b - k) / (1 - k) || 0;

	return [c * 100, m * 100, y * 100, k * 100];
};

function comparativeDistance$1(x, y) {
	/*
		See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
	*/
	return (
		((x[0] - y[0]) ** 2) +
		((x[1] - y[1]) ** 2) +
		((x[2] - y[2]) ** 2)
	);
}

convert$3.rgb.keyword = function (rgb) {
	const reversed = reverseKeywords$1[rgb];
	if (reversed) {
		return reversed;
	}

	let currentClosestDistance = Infinity;
	let currentClosestKeyword;

	for (const keyword of Object.keys(cssKeywords$1)) {
		const value = cssKeywords$1[keyword];

		// Compute comparative distance
		const distance = comparativeDistance$1(rgb, value);

		// Check if its less, if so set as closest
		if (distance < currentClosestDistance) {
			currentClosestDistance = distance;
			currentClosestKeyword = keyword;
		}
	}

	return currentClosestKeyword;
};

convert$3.keyword.rgb = function (keyword) {
	return cssKeywords$1[keyword];
};

convert$3.rgb.xyz = function (rgb) {
	let r = rgb[0] / 255;
	let g = rgb[1] / 255;
	let b = rgb[2] / 255;

	// Assume sRGB
	r = r > 0.04045 ? (((r + 0.055) / 1.055) ** 2.4) : (r / 12.92);
	g = g > 0.04045 ? (((g + 0.055) / 1.055) ** 2.4) : (g / 12.92);
	b = b > 0.04045 ? (((b + 0.055) / 1.055) ** 2.4) : (b / 12.92);

	const x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
	const y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
	const z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);

	return [x * 100, y * 100, z * 100];
};

convert$3.rgb.lab = function (rgb) {
	const xyz = convert$3.rgb.xyz(rgb);
	let x = xyz[0];
	let y = xyz[1];
	let z = xyz[2];

	x /= 95.047;
	y /= 100;
	z /= 108.883;

	x = x > 0.008856 ? (x ** (1 / 3)) : (7.787 * x) + (16 / 116);
	y = y > 0.008856 ? (y ** (1 / 3)) : (7.787 * y) + (16 / 116);
	z = z > 0.008856 ? (z ** (1 / 3)) : (7.787 * z) + (16 / 116);

	const l = (116 * y) - 16;
	const a = 500 * (x - y);
	const b = 200 * (y - z);

	return [l, a, b];
};

convert$3.hsl.rgb = function (hsl) {
	const h = hsl[0] / 360;
	const s = hsl[1] / 100;
	const l = hsl[2] / 100;
	let t2;
	let t3;
	let val;

	if (s === 0) {
		val = l * 255;
		return [val, val, val];
	}

	if (l < 0.5) {
		t2 = l * (1 + s);
	} else {
		t2 = l + s - l * s;
	}

	const t1 = 2 * l - t2;

	const rgb = [0, 0, 0];
	for (let i = 0; i < 3; i++) {
		t3 = h + 1 / 3 * -(i - 1);
		if (t3 < 0) {
			t3++;
		}

		if (t3 > 1) {
			t3--;
		}

		if (6 * t3 < 1) {
			val = t1 + (t2 - t1) * 6 * t3;
		} else if (2 * t3 < 1) {
			val = t2;
		} else if (3 * t3 < 2) {
			val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
		} else {
			val = t1;
		}

		rgb[i] = val * 255;
	}

	return rgb;
};

convert$3.hsl.hsv = function (hsl) {
	const h = hsl[0];
	let s = hsl[1] / 100;
	let l = hsl[2] / 100;
	let smin = s;
	const lmin = Math.max(l, 0.01);

	l *= 2;
	s *= (l <= 1) ? l : 2 - l;
	smin *= lmin <= 1 ? lmin : 2 - lmin;
	const v = (l + s) / 2;
	const sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);

	return [h, sv * 100, v * 100];
};

convert$3.hsv.rgb = function (hsv) {
	const h = hsv[0] / 60;
	const s = hsv[1] / 100;
	let v = hsv[2] / 100;
	const hi = Math.floor(h) % 6;

	const f = h - Math.floor(h);
	const p = 255 * v * (1 - s);
	const q = 255 * v * (1 - (s * f));
	const t = 255 * v * (1 - (s * (1 - f)));
	v *= 255;

	switch (hi) {
		case 0:
			return [v, t, p];
		case 1:
			return [q, v, p];
		case 2:
			return [p, v, t];
		case 3:
			return [p, q, v];
		case 4:
			return [t, p, v];
		case 5:
			return [v, p, q];
	}
};

convert$3.hsv.hsl = function (hsv) {
	const h = hsv[0];
	const s = hsv[1] / 100;
	const v = hsv[2] / 100;
	const vmin = Math.max(v, 0.01);
	let sl;
	let l;

	l = (2 - s) * v;
	const lmin = (2 - s) * vmin;
	sl = s * vmin;
	sl /= (lmin <= 1) ? lmin : 2 - lmin;
	sl = sl || 0;
	l /= 2;

	return [h, sl * 100, l * 100];
};

// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
convert$3.hwb.rgb = function (hwb) {
	const h = hwb[0] / 360;
	let wh = hwb[1] / 100;
	let bl = hwb[2] / 100;
	const ratio = wh + bl;
	let f;

	// Wh + bl cant be > 1
	if (ratio > 1) {
		wh /= ratio;
		bl /= ratio;
	}

	const i = Math.floor(6 * h);
	const v = 1 - bl;
	f = 6 * h - i;

	if ((i & 0x01) !== 0) {
		f = 1 - f;
	}

	const n = wh + f * (v - wh); // Linear interpolation

	let r;
	let g;
	let b;
	/* eslint-disable max-statements-per-line,no-multi-spaces */
	switch (i) {
		default:
		case 6:
		case 0: r = v;  g = n;  b = wh; break;
		case 1: r = n;  g = v;  b = wh; break;
		case 2: r = wh; g = v;  b = n; break;
		case 3: r = wh; g = n;  b = v; break;
		case 4: r = n;  g = wh; b = v; break;
		case 5: r = v;  g = wh; b = n; break;
	}
	/* eslint-enable max-statements-per-line,no-multi-spaces */

	return [r * 255, g * 255, b * 255];
};

convert$3.cmyk.rgb = function (cmyk) {
	const c = cmyk[0] / 100;
	const m = cmyk[1] / 100;
	const y = cmyk[2] / 100;
	const k = cmyk[3] / 100;

	const r = 1 - Math.min(1, c * (1 - k) + k);
	const g = 1 - Math.min(1, m * (1 - k) + k);
	const b = 1 - Math.min(1, y * (1 - k) + k);

	return [r * 255, g * 255, b * 255];
};

convert$3.xyz.rgb = function (xyz) {
	const x = xyz[0] / 100;
	const y = xyz[1] / 100;
	const z = xyz[2] / 100;
	let r;
	let g;
	let b;

	r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
	g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
	b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);

	// Assume sRGB
	r = r > 0.0031308
		? ((1.055 * (r ** (1.0 / 2.4))) - 0.055)
		: r * 12.92;

	g = g > 0.0031308
		? ((1.055 * (g ** (1.0 / 2.4))) - 0.055)
		: g * 12.92;

	b = b > 0.0031308
		? ((1.055 * (b ** (1.0 / 2.4))) - 0.055)
		: b * 12.92;

	r = Math.min(Math.max(0, r), 1);
	g = Math.min(Math.max(0, g), 1);
	b = Math.min(Math.max(0, b), 1);

	return [r * 255, g * 255, b * 255];
};

convert$3.xyz.lab = function (xyz) {
	let x = xyz[0];
	let y = xyz[1];
	let z = xyz[2];

	x /= 95.047;
	y /= 100;
	z /= 108.883;

	x = x > 0.008856 ? (x ** (1 / 3)) : (7.787 * x) + (16 / 116);
	y = y > 0.008856 ? (y ** (1 / 3)) : (7.787 * y) + (16 / 116);
	z = z > 0.008856 ? (z ** (1 / 3)) : (7.787 * z) + (16 / 116);

	const l = (116 * y) - 16;
	const a = 500 * (x - y);
	const b = 200 * (y - z);

	return [l, a, b];
};

convert$3.lab.xyz = function (lab) {
	const l = lab[0];
	const a = lab[1];
	const b = lab[2];
	let x;
	let y;
	let z;

	y = (l + 16) / 116;
	x = a / 500 + y;
	z = y - b / 200;

	const y2 = y ** 3;
	const x2 = x ** 3;
	const z2 = z ** 3;
	y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;
	x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;
	z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;

	x *= 95.047;
	y *= 100;
	z *= 108.883;

	return [x, y, z];
};

convert$3.lab.lch = function (lab) {
	const l = lab[0];
	const a = lab[1];
	const b = lab[2];
	let h;

	const hr = Math.atan2(b, a);
	h = hr * 360 / 2 / Math.PI;

	if (h < 0) {
		h += 360;
	}

	const c = Math.sqrt(a * a + b * b);

	return [l, c, h];
};

convert$3.lch.lab = function (lch) {
	const l = lch[0];
	const c = lch[1];
	const h = lch[2];

	const hr = h / 360 * 2 * Math.PI;
	const a = c * Math.cos(hr);
	const b = c * Math.sin(hr);

	return [l, a, b];
};

convert$3.rgb.ansi16 = function (args, saturation = null) {
	const [r, g, b] = args;
	let value = saturation === null ? convert$3.rgb.hsv(args)[2] : saturation; // Hsv -> ansi16 optimization

	value = Math.round(value / 50);

	if (value === 0) {
		return 30;
	}

	let ansi = 30
		+ ((Math.round(b / 255) << 2)
		| (Math.round(g / 255) << 1)
		| Math.round(r / 255));

	if (value === 2) {
		ansi += 60;
	}

	return ansi;
};

convert$3.hsv.ansi16 = function (args) {
	// Optimization here; we already know the value and don't need to get
	// it converted for us.
	return convert$3.rgb.ansi16(convert$3.hsv.rgb(args), args[2]);
};

convert$3.rgb.ansi256 = function (args) {
	const r = args[0];
	const g = args[1];
	const b = args[2];

	// We use the extended greyscale palette here, with the exception of
	// black and white. normal palette only has 4 greyscale shades.
	if (r === g && g === b) {
		if (r < 8) {
			return 16;
		}

		if (r > 248) {
			return 231;
		}

		return Math.round(((r - 8) / 247) * 24) + 232;
	}

	const ansi = 16
		+ (36 * Math.round(r / 255 * 5))
		+ (6 * Math.round(g / 255 * 5))
		+ Math.round(b / 255 * 5);

	return ansi;
};

convert$3.ansi16.rgb = function (args) {
	let color = args % 10;

	// Handle greyscale
	if (color === 0 || color === 7) {
		if (args > 50) {
			color += 3.5;
		}

		color = color / 10.5 * 255;

		return [color, color, color];
	}

	const mult = (~~(args > 50) + 1) * 0.5;
	const r = ((color & 1) * mult) * 255;
	const g = (((color >> 1) & 1) * mult) * 255;
	const b = (((color >> 2) & 1) * mult) * 255;

	return [r, g, b];
};

convert$3.ansi256.rgb = function (args) {
	// Handle greyscale
	if (args >= 232) {
		const c = (args - 232) * 10 + 8;
		return [c, c, c];
	}

	args -= 16;

	let rem;
	const r = Math.floor(args / 36) / 5 * 255;
	const g = Math.floor((rem = args % 36) / 6) / 5 * 255;
	const b = (rem % 6) / 5 * 255;

	return [r, g, b];
};

convert$3.rgb.hex = function (args) {
	const integer = ((Math.round(args[0]) & 0xFF) << 16)
		+ ((Math.round(args[1]) & 0xFF) << 8)
		+ (Math.round(args[2]) & 0xFF);

	const string = integer.toString(16).toUpperCase();
	return '000000'.substring(string.length) + string;
};

convert$3.hex.rgb = function (args) {
	const match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
	if (!match) {
		return [0, 0, 0];
	}

	let colorString = match[0];

	if (match[0].length === 3) {
		colorString = colorString.split('').map(char => {
			return char + char;
		}).join('');
	}

	const integer = parseInt(colorString, 16);
	const r = (integer >> 16) & 0xFF;
	const g = (integer >> 8) & 0xFF;
	const b = integer & 0xFF;

	return [r, g, b];
};

convert$3.rgb.hcg = function (rgb) {
	const r = rgb[0] / 255;
	const g = rgb[1] / 255;
	const b = rgb[2] / 255;
	const max = Math.max(Math.max(r, g), b);
	const min = Math.min(Math.min(r, g), b);
	const chroma = (max - min);
	let grayscale;
	let hue;

	if (chroma < 1) {
		grayscale = min / (1 - chroma);
	} else {
		grayscale = 0;
	}

	if (chroma <= 0) {
		hue = 0;
	} else
	if (max === r) {
		hue = ((g - b) / chroma) % 6;
	} else
	if (max === g) {
		hue = 2 + (b - r) / chroma;
	} else {
		hue = 4 + (r - g) / chroma;
	}

	hue /= 6;
	hue %= 1;

	return [hue * 360, chroma * 100, grayscale * 100];
};

convert$3.hsl.hcg = function (hsl) {
	const s = hsl[1] / 100;
	const l = hsl[2] / 100;

	const c = l < 0.5 ? (2.0 * s * l) : (2.0 * s * (1.0 - l));

	let f = 0;
	if (c < 1.0) {
		f = (l - 0.5 * c) / (1.0 - c);
	}

	return [hsl[0], c * 100, f * 100];
};

convert$3.hsv.hcg = function (hsv) {
	const s = hsv[1] / 100;
	const v = hsv[2] / 100;

	const c = s * v;
	let f = 0;

	if (c < 1.0) {
		f = (v - c) / (1 - c);
	}

	return [hsv[0], c * 100, f * 100];
};

convert$3.hcg.rgb = function (hcg) {
	const h = hcg[0] / 360;
	const c = hcg[1] / 100;
	const g = hcg[2] / 100;

	if (c === 0.0) {
		return [g * 255, g * 255, g * 255];
	}

	const pure = [0, 0, 0];
	const hi = (h % 1) * 6;
	const v = hi % 1;
	const w = 1 - v;
	let mg = 0;

	/* eslint-disable max-statements-per-line */
	switch (Math.floor(hi)) {
		case 0:
			pure[0] = 1; pure[1] = v; pure[2] = 0; break;
		case 1:
			pure[0] = w; pure[1] = 1; pure[2] = 0; break;
		case 2:
			pure[0] = 0; pure[1] = 1; pure[2] = v; break;
		case 3:
			pure[0] = 0; pure[1] = w; pure[2] = 1; break;
		case 4:
			pure[0] = v; pure[1] = 0; pure[2] = 1; break;
		default:
			pure[0] = 1; pure[1] = 0; pure[2] = w;
	}
	/* eslint-enable max-statements-per-line */

	mg = (1.0 - c) * g;

	return [
		(c * pure[0] + mg) * 255,
		(c * pure[1] + mg) * 255,
		(c * pure[2] + mg) * 255
	];
};

convert$3.hcg.hsv = function (hcg) {
	const c = hcg[1] / 100;
	const g = hcg[2] / 100;

	const v = c + g * (1.0 - c);
	let f = 0;

	if (v > 0.0) {
		f = c / v;
	}

	return [hcg[0], f * 100, v * 100];
};

convert$3.hcg.hsl = function (hcg) {
	const c = hcg[1] / 100;
	const g = hcg[2] / 100;

	const l = g * (1.0 - c) + 0.5 * c;
	let s = 0;

	if (l > 0.0 && l < 0.5) {
		s = c / (2 * l);
	} else
	if (l >= 0.5 && l < 1.0) {
		s = c / (2 * (1 - l));
	}

	return [hcg[0], s * 100, l * 100];
};

convert$3.hcg.hwb = function (hcg) {
	const c = hcg[1] / 100;
	const g = hcg[2] / 100;
	const v = c + g * (1.0 - c);
	return [hcg[0], (v - c) * 100, (1 - v) * 100];
};

convert$3.hwb.hcg = function (hwb) {
	const w = hwb[1] / 100;
	const b = hwb[2] / 100;
	const v = 1 - b;
	const c = v - w;
	let g = 0;

	if (c < 1) {
		g = (v - c) / (1 - c);
	}

	return [hwb[0], c * 100, g * 100];
};

convert$3.apple.rgb = function (apple) {
	return [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255];
};

convert$3.rgb.apple = function (rgb) {
	return [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535];
};

convert$3.gray.rgb = function (args) {
	return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255];
};

convert$3.gray.hsl = function (args) {
	return [0, 0, args[0]];
};

convert$3.gray.hsv = convert$3.gray.hsl;

convert$3.gray.hwb = function (gray) {
	return [0, 100, gray[0]];
};

convert$3.gray.cmyk = function (gray) {
	return [0, 0, 0, gray[0]];
};

convert$3.gray.lab = function (gray) {
	return [gray[0], 0, 0];
};

convert$3.gray.hex = function (gray) {
	const val = Math.round(gray[0] / 100 * 255) & 0xFF;
	const integer = (val << 16) + (val << 8) + val;

	const string = integer.toString(16).toUpperCase();
	return '000000'.substring(string.length) + string;
};

convert$3.rgb.gray = function (rgb) {
	const val = (rgb[0] + rgb[1] + rgb[2]) / 3;
	return [val / 255 * 100];
};

const conversions$4 = conversions$5;

/*
	This function routes a model to all other models.

	all functions that are routed have a property `.conversion` attached
	to the returned synthetic function. This property is an array
	of strings, each with the steps in between the 'from' and 'to'
	color models (inclusive).

	conversions that are not possible simply are not included.
*/

function buildGraph$1() {
	const graph = {};
	// https://jsperf.com/object-keys-vs-for-in-with-closure/3
	const models = Object.keys(conversions$4);

	for (let len = models.length, i = 0; i < len; i++) {
		graph[models[i]] = {
			// http://jsperf.com/1-vs-infinity
			// micro-opt, but this is simple.
			distance: -1,
			parent: null
		};
	}

	return graph;
}

// https://en.wikipedia.org/wiki/Breadth-first_search
function deriveBFS$1(fromModel) {
	const graph = buildGraph$1();
	const queue = [fromModel]; // Unshift -> queue -> pop

	graph[fromModel].distance = 0;

	while (queue.length) {
		const current = queue.pop();
		const adjacents = Object.keys(conversions$4[current]);

		for (let len = adjacents.length, i = 0; i < len; i++) {
			const adjacent = adjacents[i];
			const node = graph[adjacent];

			if (node.distance === -1) {
				node.distance = graph[current].distance + 1;
				node.parent = current;
				queue.unshift(adjacent);
			}
		}
	}

	return graph;
}

function link$1(from, to) {
	return function (args) {
		return to(from(args));
	};
}

function wrapConversion$1(toModel, graph) {
	const path = [graph[toModel].parent, toModel];
	let fn = conversions$4[graph[toModel].parent][toModel];

	let cur = graph[toModel].parent;
	while (graph[cur].parent) {
		path.unshift(graph[cur].parent);
		fn = link$1(conversions$4[graph[cur].parent][cur], fn);
		cur = graph[cur].parent;
	}

	fn.conversion = path;
	return fn;
}

var route$3 = function (fromModel) {
	const graph = deriveBFS$1(fromModel);
	const conversion = {};

	const models = Object.keys(graph);
	for (let len = models.length, i = 0; i < len; i++) {
		const toModel = models[i];
		const node = graph[toModel];

		if (node.parent === null) {
			// No possible conversion, or this node is the source model.
			continue;
		}

		conversion[toModel] = wrapConversion$1(toModel, graph);
	}

	return conversion;
};

const conversions$3 = conversions$5;
const route$2 = route$3;

const convert$2 = {};

const models$1 = Object.keys(conversions$3);

function wrapRaw$1(fn) {
	const wrappedFn = function (...args) {
		const arg0 = args[0];
		if (arg0 === undefined || arg0 === null) {
			return arg0;
		}

		if (arg0.length > 1) {
			args = arg0;
		}

		return fn(args);
	};

	// Preserve .conversion property if there is one
	if ('conversion' in fn) {
		wrappedFn.conversion = fn.conversion;
	}

	return wrappedFn;
}

function wrapRounded$1(fn) {
	const wrappedFn = function (...args) {
		const arg0 = args[0];

		if (arg0 === undefined || arg0 === null) {
			return arg0;
		}

		if (arg0.length > 1) {
			args = arg0;
		}

		const result = fn(args);

		// We're assuming the result is an array here.
		// see notice in conversions.js; don't use box types
		// in conversion functions.
		if (typeof result === 'object') {
			for (let len = result.length, i = 0; i < len; i++) {
				result[i] = Math.round(result[i]);
			}
		}

		return result;
	};

	// Preserve .conversion property if there is one
	if ('conversion' in fn) {
		wrappedFn.conversion = fn.conversion;
	}

	return wrappedFn;
}

models$1.forEach(fromModel => {
	convert$2[fromModel] = {};

	Object.defineProperty(convert$2[fromModel], 'channels', {value: conversions$3[fromModel].channels});
	Object.defineProperty(convert$2[fromModel], 'labels', {value: conversions$3[fromModel].labels});

	const routes = route$2(fromModel);
	const routeModels = Object.keys(routes);

	routeModels.forEach(toModel => {
		const fn = routes[toModel];

		convert$2[fromModel][toModel] = wrapRounded$1(fn);
		convert$2[fromModel][toModel].raw = wrapRaw$1(fn);
	});
});

var colorConvert$1 = convert$2;

(function (module) {

const wrapAnsi16 = (fn, offset) => (...args) => {
	const code = fn(...args);
	return `\u001B[${code + offset}m`;
};

const wrapAnsi256 = (fn, offset) => (...args) => {
	const code = fn(...args);
	return `\u001B[${38 + offset};5;${code}m`;
};

const wrapAnsi16m = (fn, offset) => (...args) => {
	const rgb = fn(...args);
	return `\u001B[${38 + offset};2;${rgb[0]};${rgb[1]};${rgb[2]}m`;
};

const ansi2ansi = n => n;
const rgb2rgb = (r, g, b) => [r, g, b];

const setLazyProperty = (object, property, get) => {
	Object.defineProperty(object, property, {
		get: () => {
			const value = get();

			Object.defineProperty(object, property, {
				value,
				enumerable: true,
				configurable: true
			});

			return value;
		},
		enumerable: true,
		configurable: true
	});
};

/** @type {typeof import('color-convert')} */
let colorConvert;
const makeDynamicStyles = (wrap, targetSpace, identity, isBackground) => {
	if (colorConvert === undefined) {
		colorConvert = colorConvert$1;
	}

	const offset = isBackground ? 10 : 0;
	const styles = {};

	for (const [sourceSpace, suite] of Object.entries(colorConvert)) {
		const name = sourceSpace === 'ansi16' ? 'ansi' : sourceSpace;
		if (sourceSpace === targetSpace) {
			styles[name] = wrap(identity, offset);
		} else if (typeof suite === 'object') {
			styles[name] = wrap(suite[targetSpace], offset);
		}
	}

	return styles;
};

function assembleStyles() {
	const codes = new Map();
	const styles = {
		modifier: {
			reset: [0, 0],
			// 21 isn't widely supported and 22 does the same thing
			bold: [1, 22],
			dim: [2, 22],
			italic: [3, 23],
			underline: [4, 24],
			inverse: [7, 27],
			hidden: [8, 28],
			strikethrough: [9, 29]
		},
		color: {
			black: [30, 39],
			red: [31, 39],
			green: [32, 39],
			yellow: [33, 39],
			blue: [34, 39],
			magenta: [35, 39],
			cyan: [36, 39],
			white: [37, 39],

			// Bright color
			blackBright: [90, 39],
			redBright: [91, 39],
			greenBright: [92, 39],
			yellowBright: [93, 39],
			blueBright: [94, 39],
			magentaBright: [95, 39],
			cyanBright: [96, 39],
			whiteBright: [97, 39]
		},
		bgColor: {
			bgBlack: [40, 49],
			bgRed: [41, 49],
			bgGreen: [42, 49],
			bgYellow: [43, 49],
			bgBlue: [44, 49],
			bgMagenta: [45, 49],
			bgCyan: [46, 49],
			bgWhite: [47, 49],

			// Bright color
			bgBlackBright: [100, 49],
			bgRedBright: [101, 49],
			bgGreenBright: [102, 49],
			bgYellowBright: [103, 49],
			bgBlueBright: [104, 49],
			bgMagentaBright: [105, 49],
			bgCyanBright: [106, 49],
			bgWhiteBright: [107, 49]
		}
	};

	// Alias bright black as gray (and grey)
	styles.color.gray = styles.color.blackBright;
	styles.bgColor.bgGray = styles.bgColor.bgBlackBright;
	styles.color.grey = styles.color.blackBright;
	styles.bgColor.bgGrey = styles.bgColor.bgBlackBright;

	for (const [groupName, group] of Object.entries(styles)) {
		for (const [styleName, style] of Object.entries(group)) {
			styles[styleName] = {
				open: `\u001B[${style[0]}m`,
				close: `\u001B[${style[1]}m`
			};

			group[styleName] = styles[styleName];

			codes.set(style[0], style[1]);
		}

		Object.defineProperty(styles, groupName, {
			value: group,
			enumerable: false
		});
	}

	Object.defineProperty(styles, 'codes', {
		value: codes,
		enumerable: false
	});

	styles.color.close = '\u001B[39m';
	styles.bgColor.close = '\u001B[49m';

	setLazyProperty(styles.color, 'ansi', () => makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, false));
	setLazyProperty(styles.color, 'ansi256', () => makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, false));
	setLazyProperty(styles.color, 'ansi16m', () => makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, false));
	setLazyProperty(styles.bgColor, 'ansi', () => makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, true));
	setLazyProperty(styles.bgColor, 'ansi256', () => makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, true));
	setLazyProperty(styles.bgColor, 'ansi16m', () => makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, true));

	return styles;
}

// Make the export immutable
Object.defineProperty(module, 'exports', {
	enumerable: true,
	get: assembleStyles
});
}(ansiStyles$2));

var hasFlag$3 = (flag, argv = process.argv) => {
	const prefix = flag.startsWith('-') ? '' : (flag.length === 1 ? '-' : '--');
	const position = argv.indexOf(prefix + flag);
	const terminatorPosition = argv.indexOf('--');
	return position !== -1 && (terminatorPosition === -1 || position < terminatorPosition);
};

const os$5 = require$$0__default$1;
const tty = require$$0__default;
const hasFlag$2 = hasFlag$3;

const {env: env$2} = process;

let forceColor$1;
if (hasFlag$2('no-color') ||
	hasFlag$2('no-colors') ||
	hasFlag$2('color=false') ||
	hasFlag$2('color=never')) {
	forceColor$1 = 0;
} else if (hasFlag$2('color') ||
	hasFlag$2('colors') ||
	hasFlag$2('color=true') ||
	hasFlag$2('color=always')) {
	forceColor$1 = 1;
}

if ('FORCE_COLOR' in env$2) {
	if (env$2.FORCE_COLOR === 'true') {
		forceColor$1 = 1;
	} else if (env$2.FORCE_COLOR === 'false') {
		forceColor$1 = 0;
	} else {
		forceColor$1 = env$2.FORCE_COLOR.length === 0 ? 1 : Math.min(parseInt(env$2.FORCE_COLOR, 10), 3);
	}
}

function translateLevel$1(level) {
	if (level === 0) {
		return false;
	}

	return {
		level,
		hasBasic: true,
		has256: level >= 2,
		has16m: level >= 3
	};
}

function supportsColor$1(haveStream, streamIsTTY) {
	if (forceColor$1 === 0) {
		return 0;
	}

	if (hasFlag$2('color=16m') ||
		hasFlag$2('color=full') ||
		hasFlag$2('color=truecolor')) {
		return 3;
	}

	if (hasFlag$2('color=256')) {
		return 2;
	}

	if (haveStream && !streamIsTTY && forceColor$1 === undefined) {
		return 0;
	}

	const min = forceColor$1 || 0;

	if (env$2.TERM === 'dumb') {
		return min;
	}

	if (process.platform === 'win32') {
		// Windows 10 build 10586 is the first Windows release that supports 256 colors.
		// Windows 10 build 14931 is the first release that supports 16m/TrueColor.
		const osRelease = os$5.release().split('.');
		if (
			Number(osRelease[0]) >= 10 &&
			Number(osRelease[2]) >= 10586
		) {
			return Number(osRelease[2]) >= 14931 ? 3 : 2;
		}

		return 1;
	}

	if ('CI' in env$2) {
		if (['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI', 'GITHUB_ACTIONS', 'BUILDKITE'].some(sign => sign in env$2) || env$2.CI_NAME === 'codeship') {
			return 1;
		}

		return min;
	}

	if ('TEAMCITY_VERSION' in env$2) {
		return /^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env$2.TEAMCITY_VERSION) ? 1 : 0;
	}

	if (env$2.COLORTERM === 'truecolor') {
		return 3;
	}

	if ('TERM_PROGRAM' in env$2) {
		const version = parseInt((env$2.TERM_PROGRAM_VERSION || '').split('.')[0], 10);

		switch (env$2.TERM_PROGRAM) {
			case 'iTerm.app':
				return version >= 3 ? 3 : 2;
			case 'Apple_Terminal':
				return 2;
			// No default
		}
	}

	if (/-256(color)?$/i.test(env$2.TERM)) {
		return 2;
	}

	if (/^screen|^xterm|^vt100|^vt220|^rxvt|color|ansi|cygwin|linux/i.test(env$2.TERM)) {
		return 1;
	}

	if ('COLORTERM' in env$2) {
		return 1;
	}

	return min;
}

function getSupportLevel$1(stream) {
	const level = supportsColor$1(stream, stream && stream.isTTY);
	return translateLevel$1(level);
}

var supportsColor_1$1 = {
	supportsColor: getSupportLevel$1,
	stdout: translateLevel$1(supportsColor$1(true, tty.isatty(1))),
	stderr: translateLevel$1(supportsColor$1(true, tty.isatty(2)))
};

const stringReplaceAll$1 = (string, substring, replacer) => {
	let index = string.indexOf(substring);
	if (index === -1) {
		return string;
	}

	const substringLength = substring.length;
	let endIndex = 0;
	let returnValue = '';
	do {
		returnValue += string.substr(endIndex, index - endIndex) + substring + replacer;
		endIndex = index + substringLength;
		index = string.indexOf(substring, endIndex);
	} while (index !== -1);

	returnValue += string.substr(endIndex);
	return returnValue;
};

const stringEncaseCRLFWithFirstIndex$1 = (string, prefix, postfix, index) => {
	let endIndex = 0;
	let returnValue = '';
	do {
		const gotCR = string[index - 1] === '\r';
		returnValue += string.substr(endIndex, (gotCR ? index - 1 : index) - endIndex) + prefix + (gotCR ? '\r\n' : '\n') + postfix;
		endIndex = index + 1;
		index = string.indexOf('\n', endIndex);
	} while (index !== -1);

	returnValue += string.substr(endIndex);
	return returnValue;
};

var util$9 = {
	stringReplaceAll: stringReplaceAll$1,
	stringEncaseCRLFWithFirstIndex: stringEncaseCRLFWithFirstIndex$1
};

const TEMPLATE_REGEX$1 = /(?:\\(u(?:[a-f\d]{4}|\{[a-f\d]{1,6}\})|x[a-f\d]{2}|.))|(?:\{(~)?(\w+(?:\([^)]*\))?(?:\.\w+(?:\([^)]*\))?)*)(?:[ \t]|(?=\r?\n)))|(\})|((?:.|[\r\n\f])+?)/gi;
const STYLE_REGEX$1 = /(?:^|\.)(\w+)(?:\(([^)]*)\))?/g;
const STRING_REGEX$1 = /^(['"])((?:\\.|(?!\1)[^\\])*)\1$/;
const ESCAPE_REGEX$1 = /\\(u(?:[a-f\d]{4}|{[a-f\d]{1,6}})|x[a-f\d]{2}|.)|([^\\])/gi;

const ESCAPES$1 = new Map([
	['n', '\n'],
	['r', '\r'],
	['t', '\t'],
	['b', '\b'],
	['f', '\f'],
	['v', '\v'],
	['0', '\0'],
	['\\', '\\'],
	['e', '\u001B'],
	['a', '\u0007']
]);

function unescape$2(c) {
	const u = c[0] === 'u';
	const bracket = c[1] === '{';

	if ((u && !bracket && c.length === 5) || (c[0] === 'x' && c.length === 3)) {
		return String.fromCharCode(parseInt(c.slice(1), 16));
	}

	if (u && bracket) {
		return String.fromCodePoint(parseInt(c.slice(2, -1), 16));
	}

	return ESCAPES$1.get(c) || c;
}

function parseArguments$1(name, arguments_) {
	const results = [];
	const chunks = arguments_.trim().split(/\s*,\s*/g);
	let matches;

	for (const chunk of chunks) {
		const number = Number(chunk);
		if (!Number.isNaN(number)) {
			results.push(number);
		} else if ((matches = chunk.match(STRING_REGEX$1))) {
			results.push(matches[2].replace(ESCAPE_REGEX$1, (m, escape, character) => escape ? unescape$2(escape) : character));
		} else {
			throw new Error(`Invalid Chalk template style argument: ${chunk} (in style '${name}')`);
		}
	}

	return results;
}

function parseStyle$1(style) {
	STYLE_REGEX$1.lastIndex = 0;

	const results = [];
	let matches;

	while ((matches = STYLE_REGEX$1.exec(style)) !== null) {
		const name = matches[1];

		if (matches[2]) {
			const args = parseArguments$1(name, matches[2]);
			results.push([name].concat(args));
		} else {
			results.push([name]);
		}
	}

	return results;
}

function buildStyle$1(chalk, styles) {
	const enabled = {};

	for (const layer of styles) {
		for (const style of layer.styles) {
			enabled[style[0]] = layer.inverse ? null : style.slice(1);
		}
	}

	let current = chalk;
	for (const [styleName, styles] of Object.entries(enabled)) {
		if (!Array.isArray(styles)) {
			continue;
		}

		if (!(styleName in current)) {
			throw new Error(`Unknown Chalk style: ${styleName}`);
		}

		current = styles.length > 0 ? current[styleName](...styles) : current[styleName];
	}

	return current;
}

var templates$1 = (chalk, temporary) => {
	const styles = [];
	const chunks = [];
	let chunk = [];

	// eslint-disable-next-line max-params
	temporary.replace(TEMPLATE_REGEX$1, (m, escapeCharacter, inverse, style, close, character) => {
		if (escapeCharacter) {
			chunk.push(unescape$2(escapeCharacter));
		} else if (style) {
			const string = chunk.join('');
			chunk = [];
			chunks.push(styles.length === 0 ? string : buildStyle$1(chalk, styles)(string));
			styles.push({inverse, styles: parseStyle$1(style)});
		} else if (close) {
			if (styles.length === 0) {
				throw new Error('Found extraneous } in Chalk template literal');
			}

			chunks.push(buildStyle$1(chalk, styles)(chunk.join('')));
			chunk = [];
			styles.pop();
		} else {
			chunk.push(character);
		}
	});

	chunks.push(chunk.join(''));

	if (styles.length > 0) {
		const errMessage = `Chalk template literal is missing ${styles.length} closing bracket${styles.length === 1 ? '' : 's'} (\`}\`)`;
		throw new Error(errMessage);
	}

	return chunks.join('');
};

const ansiStyles$1 = ansiStyles$2.exports;
const {stdout: stdoutColor, stderr: stderrColor} = supportsColor_1$1;
const {
	stringReplaceAll,
	stringEncaseCRLFWithFirstIndex
} = util$9;

const {isArray: isArray$4} = Array;

// `supportsColor.level` → `ansiStyles.color[name]` mapping
const levelMapping = [
	'ansi',
	'ansi',
	'ansi256',
	'ansi16m'
];

const styles = Object.create(null);

const applyOptions = (object, options = {}) => {
	if (options.level && !(Number.isInteger(options.level) && options.level >= 0 && options.level <= 3)) {
		throw new Error('The `level` option should be an integer from 0 to 3');
	}

	// Detect level if not set manually
	const colorLevel = stdoutColor ? stdoutColor.level : 0;
	object.level = options.level === undefined ? colorLevel : options.level;
};

class ChalkClass {
	constructor(options) {
		// eslint-disable-next-line no-constructor-return
		return chalkFactory(options);
	}
}

const chalkFactory = options => {
	const chalk = {};
	applyOptions(chalk, options);

	chalk.template = (...arguments_) => chalkTag(chalk.template, ...arguments_);

	Object.setPrototypeOf(chalk, Chalk.prototype);
	Object.setPrototypeOf(chalk.template, chalk);

	chalk.template.constructor = () => {
		throw new Error('`chalk.constructor()` is deprecated. Use `new chalk.Instance()` instead.');
	};

	chalk.template.Instance = ChalkClass;

	return chalk.template;
};

function Chalk(options) {
	return chalkFactory(options);
}

for (const [styleName, style] of Object.entries(ansiStyles$1)) {
	styles[styleName] = {
		get() {
			const builder = createBuilder(this, createStyler(style.open, style.close, this._styler), this._isEmpty);
			Object.defineProperty(this, styleName, {value: builder});
			return builder;
		}
	};
}

styles.visible = {
	get() {
		const builder = createBuilder(this, this._styler, true);
		Object.defineProperty(this, 'visible', {value: builder});
		return builder;
	}
};

const usedModels = ['rgb', 'hex', 'keyword', 'hsl', 'hsv', 'hwb', 'ansi', 'ansi256'];

for (const model of usedModels) {
	styles[model] = {
		get() {
			const {level} = this;
			return function (...arguments_) {
				const styler = createStyler(ansiStyles$1.color[levelMapping[level]][model](...arguments_), ansiStyles$1.color.close, this._styler);
				return createBuilder(this, styler, this._isEmpty);
			};
		}
	};
}

for (const model of usedModels) {
	const bgModel = 'bg' + model[0].toUpperCase() + model.slice(1);
	styles[bgModel] = {
		get() {
			const {level} = this;
			return function (...arguments_) {
				const styler = createStyler(ansiStyles$1.bgColor[levelMapping[level]][model](...arguments_), ansiStyles$1.bgColor.close, this._styler);
				return createBuilder(this, styler, this._isEmpty);
			};
		}
	};
}

const proto$1 = Object.defineProperties(() => {}, {
	...styles,
	level: {
		enumerable: true,
		get() {
			return this._generator.level;
		},
		set(level) {
			this._generator.level = level;
		}
	}
});

const createStyler = (open, close, parent) => {
	let openAll;
	let closeAll;
	if (parent === undefined) {
		openAll = open;
		closeAll = close;
	} else {
		openAll = parent.openAll + open;
		closeAll = close + parent.closeAll;
	}

	return {
		open,
		close,
		openAll,
		closeAll,
		parent
	};
};

const createBuilder = (self, _styler, _isEmpty) => {
	const builder = (...arguments_) => {
		if (isArray$4(arguments_[0]) && isArray$4(arguments_[0].raw)) {
			// Called as a template literal, for example: chalk.red`2 + 3 = {bold ${2+3}}`
			return applyStyle(builder, chalkTag(builder, ...arguments_));
		}

		// Single argument is hot path, implicit coercion is faster than anything
		// eslint-disable-next-line no-implicit-coercion
		return applyStyle(builder, (arguments_.length === 1) ? ('' + arguments_[0]) : arguments_.join(' '));
	};

	// We alter the prototype because we must return a function, but there is
	// no way to create a function with a different prototype
	Object.setPrototypeOf(builder, proto$1);

	builder._generator = self;
	builder._styler = _styler;
	builder._isEmpty = _isEmpty;

	return builder;
};

const applyStyle = (self, string) => {
	if (self.level <= 0 || !string) {
		return self._isEmpty ? '' : string;
	}

	let styler = self._styler;

	if (styler === undefined) {
		return string;
	}

	const {openAll, closeAll} = styler;
	if (string.indexOf('\u001B') !== -1) {
		while (styler !== undefined) {
			// Replace any instances already present with a re-opening code
			// otherwise only the part of the string until said closing code
			// will be colored, and the rest will simply be 'plain'.
			string = stringReplaceAll(string, styler.close, styler.open);

			styler = styler.parent;
		}
	}

	// We can move both next actions out of loop, because remaining actions in loop won't have
	// any/visible effect on parts we add here. Close the styling before a linebreak and reopen
	// after next line to fix a bleed issue on macOS: https://github.com/chalk/chalk/pull/92
	const lfIndex = string.indexOf('\n');
	if (lfIndex !== -1) {
		string = stringEncaseCRLFWithFirstIndex(string, closeAll, openAll, lfIndex);
	}

	return openAll + string + closeAll;
};

let template;
const chalkTag = (chalk, ...strings) => {
	const [firstString] = strings;

	if (!isArray$4(firstString) || !isArray$4(firstString.raw)) {
		// If chalk() was called by itself or with a string,
		// return the string itself as a string.
		return strings.join(' ');
	}

	const arguments_ = strings.slice(1);
	const parts = [firstString.raw[0]];

	for (let i = 1; i < firstString.length; i++) {
		parts.push(
			String(arguments_[i - 1]).replace(/[{}\\]/g, '\\$&'),
			String(firstString.raw[i])
		);
	}

	if (template === undefined) {
		template = templates$1;
	}

	return template(chalk, parts.join(''));
};

Object.defineProperties(Chalk.prototype, styles);

const chalk$2 = Chalk(); // eslint-disable-line new-cap
chalk$2.supportsColor = stdoutColor;
chalk$2.stderr = Chalk({level: stderrColor ? stderrColor.level : 0}); // eslint-disable-line new-cap
chalk$2.stderr.supportsColor = stderrColor;

var source = chalk$2;

var src$2 = {exports: {}};

var browser$1 = {exports: {}};

/**
 * Helpers.
 */

var s$1 = 1000;
var m$1 = s$1 * 60;
var h$1 = m$1 * 60;
var d$1 = h$1 * 24;
var w = d$1 * 7;
var y$1 = d$1 * 365.25;

/**
 * Parse or format the given `val`.
 *
 * Options:
 *
 *  - `long` verbose formatting [false]
 *
 * @param {String|Number} val
 * @param {Object} [options]
 * @throws {Error} throw an error if val is not a non-empty string or a number
 * @return {String|Number}
 * @api public
 */

var ms$1 = function(val, options) {
  options = options || {};
  var type = typeof val;
  if (type === 'string' && val.length > 0) {
    return parse$m(val);
  } else if (type === 'number' && isFinite(val)) {
    return options.long ? fmtLong$1(val) : fmtShort$1(val);
  }
  throw new Error(
    'val is not a non-empty string or a valid number. val=' +
      JSON.stringify(val)
  );
};

/**
 * Parse the given `str` and return milliseconds.
 *
 * @param {String} str
 * @return {Number}
 * @api private
 */

function parse$m(str) {
  str = String(str);
  if (str.length > 100) {
    return;
  }
  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
    str
  );
  if (!match) {
    return;
  }
  var n = parseFloat(match[1]);
  var type = (match[2] || 'ms').toLowerCase();
  switch (type) {
    case 'years':
    case 'year':
    case 'yrs':
    case 'yr':
    case 'y':
      return n * y$1;
    case 'weeks':
    case 'week':
    case 'w':
      return n * w;
    case 'days':
    case 'day':
    case 'd':
      return n * d$1;
    case 'hours':
    case 'hour':
    case 'hrs':
    case 'hr':
    case 'h':
      return n * h$1;
    case 'minutes':
    case 'minute':
    case 'mins':
    case 'min':
    case 'm':
      return n * m$1;
    case 'seconds':
    case 'second':
    case 'secs':
    case 'sec':
    case 's':
      return n * s$1;
    case 'milliseconds':
    case 'millisecond':
    case 'msecs':
    case 'msec':
    case 'ms':
      return n;
    default:
      return undefined;
  }
}

/**
 * Short format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtShort$1(ms) {
  var msAbs = Math.abs(ms);
  if (msAbs >= d$1) {
    return Math.round(ms / d$1) + 'd';
  }
  if (msAbs >= h$1) {
    return Math.round(ms / h$1) + 'h';
  }
  if (msAbs >= m$1) {
    return Math.round(ms / m$1) + 'm';
  }
  if (msAbs >= s$1) {
    return Math.round(ms / s$1) + 's';
  }
  return ms + 'ms';
}

/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtLong$1(ms) {
  var msAbs = Math.abs(ms);
  if (msAbs >= d$1) {
    return plural$1(ms, msAbs, d$1, 'day');
  }
  if (msAbs >= h$1) {
    return plural$1(ms, msAbs, h$1, 'hour');
  }
  if (msAbs >= m$1) {
    return plural$1(ms, msAbs, m$1, 'minute');
  }
  if (msAbs >= s$1) {
    return plural$1(ms, msAbs, s$1, 'second');
  }
  return ms + ' ms';
}

/**
 * Pluralization helper.
 */

function plural$1(ms, msAbs, n, name) {
  var isPlural = msAbs >= n * 1.5;
  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
}

/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 */

function setup(env) {
	createDebug.debug = createDebug;
	createDebug.default = createDebug;
	createDebug.coerce = coerce;
	createDebug.disable = disable;
	createDebug.enable = enable;
	createDebug.enabled = enabled;
	createDebug.humanize = ms$1;
	createDebug.destroy = destroy;

	Object.keys(env).forEach(key => {
		createDebug[key] = env[key];
	});

	/**
	* The currently active debug mode names, and names to skip.
	*/

	createDebug.names = [];
	createDebug.skips = [];

	/**
	* Map of special "%n" handling functions, for the debug "format" argument.
	*
	* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
	*/
	createDebug.formatters = {};

	/**
	* Selects a color for a debug namespace
	* @param {String} namespace The namespace string for the for the debug instance to be colored
	* @return {Number|String} An ANSI color code for the given namespace
	* @api private
	*/
	function selectColor(namespace) {
		let hash = 0;

		for (let i = 0; i < namespace.length; i++) {
			hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
			hash |= 0; // Convert to 32bit integer
		}

		return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
	}
	createDebug.selectColor = selectColor;

	/**
	* Create a debugger with the given `namespace`.
	*
	* @param {String} namespace
	* @return {Function}
	* @api public
	*/
	function createDebug(namespace) {
		let prevTime;
		let enableOverride = null;
		let namespacesCache;
		let enabledCache;

		function debug(...args) {
			// Disabled?
			if (!debug.enabled) {
				return;
			}

			const self = debug;

			// Set `diff` timestamp
			const curr = Number(new Date());
			const ms = curr - (prevTime || curr);
			self.diff = ms;
			self.prev = prevTime;
			self.curr = curr;
			prevTime = curr;

			args[0] = createDebug.coerce(args[0]);

			if (typeof args[0] !== 'string') {
				// Anything else let's inspect with %O
				args.unshift('%O');
			}

			// Apply any `formatters` transformations
			let index = 0;
			args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
				// If we encounter an escaped % then don't increase the array index
				if (match === '%%') {
					return '%';
				}
				index++;
				const formatter = createDebug.formatters[format];
				if (typeof formatter === 'function') {
					const val = args[index];
					match = formatter.call(self, val);

					// Now we need to remove `args[index]` since it's inlined in the `format`
					args.splice(index, 1);
					index--;
				}
				return match;
			});

			// Apply env-specific formatting (colors, etc.)
			createDebug.formatArgs.call(self, args);

			const logFn = self.log || createDebug.log;
			logFn.apply(self, args);
		}

		debug.namespace = namespace;
		debug.useColors = createDebug.useColors();
		debug.color = createDebug.selectColor(namespace);
		debug.extend = extend;
		debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.

		Object.defineProperty(debug, 'enabled', {
			enumerable: true,
			configurable: false,
			get: () => {
				if (enableOverride !== null) {
					return enableOverride;
				}
				if (namespacesCache !== createDebug.namespaces) {
					namespacesCache = createDebug.namespaces;
					enabledCache = createDebug.enabled(namespace);
				}

				return enabledCache;
			},
			set: v => {
				enableOverride = v;
			}
		});

		// Env-specific initialization logic for debug instances
		if (typeof createDebug.init === 'function') {
			createDebug.init(debug);
		}

		return debug;
	}

	function extend(namespace, delimiter) {
		const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
		newDebug.log = this.log;
		return newDebug;
	}

	/**
	* Enables a debug mode by namespaces. This can include modes
	* separated by a colon and wildcards.
	*
	* @param {String} namespaces
	* @api public
	*/
	function enable(namespaces) {
		createDebug.save(namespaces);
		createDebug.namespaces = namespaces;

		createDebug.names = [];
		createDebug.skips = [];

		let i;
		const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
		const len = split.length;

		for (i = 0; i < len; i++) {
			if (!split[i]) {
				// ignore empty strings
				continue;
			}

			namespaces = split[i].replace(/\*/g, '.*?');

			if (namespaces[0] === '-') {
				createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
			} else {
				createDebug.names.push(new RegExp('^' + namespaces + '$'));
			}
		}
	}

	/**
	* Disable debug output.
	*
	* @return {String} namespaces
	* @api public
	*/
	function disable() {
		const namespaces = [
			...createDebug.names.map(toNamespace),
			...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)
		].join(',');
		createDebug.enable('');
		return namespaces;
	}

	/**
	* Returns true if the given mode name is enabled, false otherwise.
	*
	* @param {String} name
	* @return {Boolean}
	* @api public
	*/
	function enabled(name) {
		if (name[name.length - 1] === '*') {
			return true;
		}

		let i;
		let len;

		for (i = 0, len = createDebug.skips.length; i < len; i++) {
			if (createDebug.skips[i].test(name)) {
				return false;
			}
		}

		for (i = 0, len = createDebug.names.length; i < len; i++) {
			if (createDebug.names[i].test(name)) {
				return true;
			}
		}

		return false;
	}

	/**
	* Convert regexp to namespace
	*
	* @param {RegExp} regxep
	* @return {String} namespace
	* @api private
	*/
	function toNamespace(regexp) {
		return regexp.toString()
			.substring(2, regexp.toString().length - 2)
			.replace(/\.\*\?$/, '*');
	}

	/**
	* Coerce `val`.
	*
	* @param {Mixed} val
	* @return {Mixed}
	* @api private
	*/
	function coerce(val) {
		if (val instanceof Error) {
			return val.stack || val.message;
		}
		return val;
	}

	/**
	* XXX DO NOT USE. This is a temporary stub function.
	* XXX It WILL be removed in the next major release.
	*/
	function destroy() {
		console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
	}

	createDebug.enable(createDebug.load());

	return createDebug;
}

var common$e = setup;

/* eslint-env browser */

(function (module, exports) {
/**
 * This is the web browser implementation of `debug()`.
 */

exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = localstorage();
exports.destroy = (() => {
	let warned = false;

	return () => {
		if (!warned) {
			warned = true;
			console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
		}
	};
})();

/**
 * Colors.
 */

exports.colors = [
	'#0000CC',
	'#0000FF',
	'#0033CC',
	'#0033FF',
	'#0066CC',
	'#0066FF',
	'#0099CC',
	'#0099FF',
	'#00CC00',
	'#00CC33',
	'#00CC66',
	'#00CC99',
	'#00CCCC',
	'#00CCFF',
	'#3300CC',
	'#3300FF',
	'#3333CC',
	'#3333FF',
	'#3366CC',
	'#3366FF',
	'#3399CC',
	'#3399FF',
	'#33CC00',
	'#33CC33',
	'#33CC66',
	'#33CC99',
	'#33CCCC',
	'#33CCFF',
	'#6600CC',
	'#6600FF',
	'#6633CC',
	'#6633FF',
	'#66CC00',
	'#66CC33',
	'#9900CC',
	'#9900FF',
	'#9933CC',
	'#9933FF',
	'#99CC00',
	'#99CC33',
	'#CC0000',
	'#CC0033',
	'#CC0066',
	'#CC0099',
	'#CC00CC',
	'#CC00FF',
	'#CC3300',
	'#CC3333',
	'#CC3366',
	'#CC3399',
	'#CC33CC',
	'#CC33FF',
	'#CC6600',
	'#CC6633',
	'#CC9900',
	'#CC9933',
	'#CCCC00',
	'#CCCC33',
	'#FF0000',
	'#FF0033',
	'#FF0066',
	'#FF0099',
	'#FF00CC',
	'#FF00FF',
	'#FF3300',
	'#FF3333',
	'#FF3366',
	'#FF3399',
	'#FF33CC',
	'#FF33FF',
	'#FF6600',
	'#FF6633',
	'#FF9900',
	'#FF9933',
	'#FFCC00',
	'#FFCC33'
];

/**
 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
 * and the Firebug extension (any Firefox version) are known
 * to support "%c" CSS customizations.
 *
 * TODO: add a `localStorage` variable to explicitly enable/disable colors
 */

// eslint-disable-next-line complexity
function useColors() {
	// NB: In an Electron preload script, document will be defined but not fully
	// initialized. Since we know we're in Chrome, we'll just detect this case
	// explicitly
	if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
		return true;
	}

	// Internet Explorer and Edge do not support colors.
	if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
		return false;
	}

	// Is webkit? http://stackoverflow.com/a/16459606/376773
	// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
	return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
		// Is firebug? http://stackoverflow.com/a/398120/376773
		(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
		// Is firefox >= v31?
		// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
		// Double check webkit in userAgent just in case we are in a worker
		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
}

/**
 * Colorize log arguments if enabled.
 *
 * @api public
 */

function formatArgs(args) {
	args[0] = (this.useColors ? '%c' : '') +
		this.namespace +
		(this.useColors ? ' %c' : ' ') +
		args[0] +
		(this.useColors ? '%c ' : ' ') +
		'+' + module.exports.humanize(this.diff);

	if (!this.useColors) {
		return;
	}

	const c = 'color: ' + this.color;
	args.splice(1, 0, c, 'color: inherit');

	// The final "%c" is somewhat tricky, because there could be other
	// arguments passed either before or after the %c, so we need to
	// figure out the correct index to insert the CSS into
	let index = 0;
	let lastC = 0;
	args[0].replace(/%[a-zA-Z%]/g, match => {
		if (match === '%%') {
			return;
		}
		index++;
		if (match === '%c') {
			// We only are interested in the *last* %c
			// (the user may have provided their own)
			lastC = index;
		}
	});

	args.splice(lastC, 0, c);
}

/**
 * Invokes `console.debug()` when available.
 * No-op when `console.debug` is not a "function".
 * If `console.debug` is not available, falls back
 * to `console.log`.
 *
 * @api public
 */
exports.log = console.debug || console.log || (() => {});

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */
function save(namespaces) {
	try {
		if (namespaces) {
			exports.storage.setItem('debug', namespaces);
		} else {
			exports.storage.removeItem('debug');
		}
	} catch (error) {
		// Swallow
		// XXX (@Qix-) should we be logging these?
	}
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */
function load() {
	let r;
	try {
		r = exports.storage.getItem('debug');
	} catch (error) {
		// Swallow
		// XXX (@Qix-) should we be logging these?
	}

	// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
	if (!r && typeof process !== 'undefined' && 'env' in process) {
		r = process.env.DEBUG;
	}

	return r;
}

/**
 * Localstorage attempts to return the localstorage.
 *
 * This is necessary because safari throws
 * when a user disables cookies/localstorage
 * and you attempt to access it.
 *
 * @return {LocalStorage}
 * @api private
 */

function localstorage() {
	try {
		// TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
		// The Browser also has localStorage in the global context.
		return localStorage;
	} catch (error) {
		// Swallow
		// XXX (@Qix-) should we be logging these?
	}
}

module.exports = common$e(exports);

const {formatters} = module.exports;

/**
 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
 */

formatters.j = function (v) {
	try {
		return JSON.stringify(v);
	} catch (error) {
		return '[UnexpectedJSONParseError]: ' + error.message;
	}
};
}(browser$1, browser$1.exports));

var node$1 = {exports: {}};

/**
 * Module dependencies.
 */

(function (module, exports) {
const tty = require$$0__default;
const util = require$$0__default$2;

/**
 * This is the Node.js implementation of `debug()`.
 */

exports.init = init;
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.destroy = util.deprecate(
	() => {},
	'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'
);

/**
 * Colors.
 */

exports.colors = [6, 2, 3, 4, 5, 1];

try {
	// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
	// eslint-disable-next-line import/no-extraneous-dependencies
	const supportsColor = require('supports-color');

	if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
		exports.colors = [
			20,
			21,
			26,
			27,
			32,
			33,
			38,
			39,
			40,
			41,
			42,
			43,
			44,
			45,
			56,
			57,
			62,
			63,
			68,
			69,
			74,
			75,
			76,
			77,
			78,
			79,
			80,
			81,
			92,
			93,
			98,
			99,
			112,
			113,
			128,
			129,
			134,
			135,
			148,
			149,
			160,
			161,
			162,
			163,
			164,
			165,
			166,
			167,
			168,
			169,
			170,
			171,
			172,
			173,
			178,
			179,
			184,
			185,
			196,
			197,
			198,
			199,
			200,
			201,
			202,
			203,
			204,
			205,
			206,
			207,
			208,
			209,
			214,
			215,
			220,
			221
		];
	}
} catch (error) {
	// Swallow - we only care if `supports-color` is available; it doesn't have to be.
}

/**
 * Build up the default `inspectOpts` object from the environment variables.
 *
 *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
 */

exports.inspectOpts = Object.keys(process.env).filter(key => {
	return /^debug_/i.test(key);
}).reduce((obj, key) => {
	// Camel-case
	const prop = key
		.substring(6)
		.toLowerCase()
		.replace(/_([a-z])/g, (_, k) => {
			return k.toUpperCase();
		});

	// Coerce string value into JS value
	let val = process.env[key];
	if (/^(yes|on|true|enabled)$/i.test(val)) {
		val = true;
	} else if (/^(no|off|false|disabled)$/i.test(val)) {
		val = false;
	} else if (val === 'null') {
		val = null;
	} else {
		val = Number(val);
	}

	obj[prop] = val;
	return obj;
}, {});

/**
 * Is stdout a TTY? Colored output is enabled when `true`.
 */

function useColors() {
	return 'colors' in exports.inspectOpts ?
		Boolean(exports.inspectOpts.colors) :
		tty.isatty(process.stderr.fd);
}

/**
 * Adds ANSI color escape codes if enabled.
 *
 * @api public
 */

function formatArgs(args) {
	const {namespace: name, useColors} = this;

	if (useColors) {
		const c = this.color;
		const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
		const prefix = `  ${colorCode};1m${name} \u001B[0m`;

		args[0] = prefix + args[0].split('\n').join('\n' + prefix);
		args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
	} else {
		args[0] = getDate() + name + ' ' + args[0];
	}
}

function getDate() {
	if (exports.inspectOpts.hideDate) {
		return '';
	}
	return new Date().toISOString() + ' ';
}

/**
 * Invokes `util.format()` with the specified arguments and writes to stderr.
 */

function log(...args) {
	return process.stderr.write(util.format(...args) + '\n');
}

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */
function save(namespaces) {
	if (namespaces) {
		process.env.DEBUG = namespaces;
	} else {
		// If you set a process.env field to null or undefined, it gets cast to the
		// string 'null' or 'undefined'. Just delete instead.
		delete process.env.DEBUG;
	}
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */

function load() {
	return process.env.DEBUG;
}

/**
 * Init logic for `debug` instances.
 *
 * Create a new `inspectOpts` object in case `useColors` is set
 * differently for a particular `debug` instance.
 */

function init(debug) {
	debug.inspectOpts = {};

	const keys = Object.keys(exports.inspectOpts);
	for (let i = 0; i < keys.length; i++) {
		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
	}
}

module.exports = common$e(exports);

const {formatters} = module.exports;

/**
 * Map %o to `util.inspect()`, all on a single line.
 */

formatters.o = function (v) {
	this.inspectOpts.colors = this.useColors;
	return util.inspect(v, this.inspectOpts)
		.split('\n')
		.map(str => str.trim())
		.join(' ');
};

/**
 * Map %O to `util.inspect()`, allowing multiple lines if needed.
 */

formatters.O = function (v) {
	this.inspectOpts.colors = this.useColors;
	return util.inspect(v, this.inspectOpts);
};
}(node$1, node$1.exports));

/**
 * Detect Electron renderer / nwjs process, which is node, but we should
 * treat as a browser.
 */

if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
	src$2.exports = browser$1.exports;
} else {
	src$2.exports = node$1.exports;
}

var debug$f = src$2.exports;

const DEFAULT_MAIN_FIELDS = [
    'module',
    'jsnext:main',
    'jsnext'
];
const DEFAULT_EXTENSIONS = [
    '.mjs',
    '.js',
    '.ts',
    '.jsx',
    '.tsx',
    '.json'
];
const JS_TYPES_RE = /\.(?:j|t)sx?$|\.mjs$/;
const OPTIMIZABLE_ENTRY_RE = /\.(?:m?js|ts)$/;
const SPECIAL_QUERY_RE = /[\?&](?:worker|sharedworker|raw|url)\b/;
/**
 * Prefix for resolved fs paths, since windows paths may not be valid as URLs.
 */
const FS_PREFIX = `/@fs/`;
/**
 * Prefix for resolved Ids that are not valid browser import specifiers
 */
const VALID_ID_PREFIX = `/@id/`;
/**
 * Some Rollup plugins use ids that starts with the null byte \0 to avoid
 * collisions, but it is not permitted in import URLs so we have to replace
 * them.
 */
const NULL_BYTE_PLACEHOLDER = `__x00__`;
const CLIENT_PUBLIC_PATH = `/@vite/client`;
const ENV_PUBLIC_PATH = `/@vite/env`;
// eslint-disable-next-line node/no-missing-require
const CLIENT_ENTRY = require.resolve('vite/dist/client/client.mjs');
// eslint-disable-next-line node/no-missing-require
const ENV_ENTRY = require.resolve('vite/dist/client/env.mjs');
const CLIENT_DIR = path__default.dirname(CLIENT_ENTRY);
// ** READ THIS ** before editing `KNOWN_ASSET_TYPES`.
//   If you add an asset to `KNOWN_ASSET_TYPES`, make sure to also add it
//   to the TypeScript declaration file `packages/vite/client.d.ts`.
const KNOWN_ASSET_TYPES = [
    // images
    'png',
    'jpe?g',
    'gif',
    'svg',
    'ico',
    'webp',
    'avif',
    // media
    'mp4',
    'webm',
    'ogg',
    'mp3',
    'wav',
    'flac',
    'aac',
    // fonts
    'woff2?',
    'eot',
    'ttf',
    'otf',
    // other
    'wasm',
    'webmanifest',
    'pdf'
];
const DEFAULT_ASSETS_RE = new RegExp(`\\.(` + KNOWN_ASSET_TYPES.join('|') + `)(\\?.*)?$`);
const DEP_VERSION_RE = /[\?&](v=[\w\.-]+)\b/;

const {builtinModules} = require$$0__default$3;

const ignoreList = [
	'sys'
];

// eslint-disable-next-line node/no-deprecated-api
var builtinModules_1 = (builtinModules || Object.keys(process.binding('natives')))
	.filter(x => !/^_|^(internal|v8|node-inspect)\/|\//.test(x) && !ignoreList.includes(x))
	.sort();

var charToInteger$1 = {};
var chars$2 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
for (var i$2 = 0; i$2 < chars$2.length; i$2++) {
    charToInteger$1[chars$2.charCodeAt(i$2)] = i$2;
}
function decode(mappings) {
    var decoded = [];
    var line = [];
    var segment = [
        0,
        0,
        0,
        0,
        0,
    ];
    var j = 0;
    for (var i = 0, shift = 0, value = 0; i < mappings.length; i++) {
        var c = mappings.charCodeAt(i);
        if (c === 44) { // ","
            segmentify(line, segment, j);
            j = 0;
        }
        else if (c === 59) { // ";"
            segmentify(line, segment, j);
            j = 0;
            decoded.push(line);
            line = [];
            segment[0] = 0;
        }
        else {
            var integer = charToInteger$1[c];
            if (integer === undefined) {
                throw new Error('Invalid character (' + String.fromCharCode(c) + ')');
            }
            var hasContinuationBit = integer & 32;
            integer &= 31;
            value += integer << shift;
            if (hasContinuationBit) {
                shift += 5;
            }
            else {
                var shouldNegate = value & 1;
                value >>>= 1;
                if (shouldNegate) {
                    value = value === 0 ? -0x80000000 : -value;
                }
                segment[j] += value;
                j++;
                value = shift = 0; // reset
            }
        }
    }
    segmentify(line, segment, j);
    decoded.push(line);
    return decoded;
}
function segmentify(line, segment, j) {
    // This looks ugly, but we're creating specialized arrays with a specific
    // length. This is much faster than creating a new array (which v8 expands to
    // a capacity of 17 after pushing the first item), or slicing out a subarray
    // (which is slow). Length 4 is assumed to be the most frequent, followed by
    // length 5 (since not everything will have an associated name), followed by
    // length 1 (it's probably rare for a source substring to not have an
    // associated segment data).
    if (j === 4)
        line.push([segment[0], segment[1], segment[2], segment[3]]);
    else if (j === 5)
        line.push([segment[0], segment[1], segment[2], segment[3], segment[4]]);
    else if (j === 1)
        line.push([segment[0]]);
}
function encode$1(decoded) {
    var sourceFileIndex = 0; // second field
    var sourceCodeLine = 0; // third field
    var sourceCodeColumn = 0; // fourth field
    var nameIndex = 0; // fifth field
    var mappings = '';
    for (var i = 0; i < decoded.length; i++) {
        var line = decoded[i];
        if (i > 0)
            mappings += ';';
        if (line.length === 0)
            continue;
        var generatedCodeColumn = 0; // first field
        var lineMappings = [];
        for (var _i = 0, line_1 = line; _i < line_1.length; _i++) {
            var segment = line_1[_i];
            var segmentMappings = encodeInteger$1(segment[0] - generatedCodeColumn);
            generatedCodeColumn = segment[0];
            if (segment.length > 1) {
                segmentMappings +=
                    encodeInteger$1(segment[1] - sourceFileIndex) +
                        encodeInteger$1(segment[2] - sourceCodeLine) +
                        encodeInteger$1(segment[3] - sourceCodeColumn);
                sourceFileIndex = segment[1];
                sourceCodeLine = segment[2];
                sourceCodeColumn = segment[3];
            }
            if (segment.length === 5) {
                segmentMappings += encodeInteger$1(segment[4] - nameIndex);
                nameIndex = segment[4];
            }
            lineMappings.push(segmentMappings);
        }
        mappings += lineMappings.join(',');
    }
    return mappings;
}
function encodeInteger$1(num) {
    var result = '';
    num = num < 0 ? (-num << 1) | 1 : num << 1;
    do {
        var clamped = num & 31;
        num >>>= 5;
        if (num > 0) {
            clamped |= 32;
        }
        result += chars$2[clamped];
    } while (num > 0);
    return result;
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Creates a brand new (prototype-less) object with the enumerable-own
 * properties of `target`. Any enumerable-own properties from `source` which
 * are not present on `target` will be copied as well.
 */
function defaults(target, source) {
    return Object.assign(Object.create(null), source, target);
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Decodes an input sourcemap into a `DecodedSourceMap` sourcemap object.
 *
 * Valid input maps include a `DecodedSourceMap`, a `RawSourceMap`, or JSON
 * representations of either type.
 */
function decodeSourceMap(map) {
    if (typeof map === 'string') {
        map = JSON.parse(map);
    }
    let { mappings } = map;
    if (typeof mappings === 'string') {
        mappings = sortMappings(decode(mappings), true);
    }
    else {
        // Clone the Line so that we can sort it. We don't want to mutate an array
        // that we don't own directly.
        mappings = sortMappings(mappings, false);
    }
    return defaults({ mappings }, map);
}
function firstUnsortedSegmentLine(mappings) {
    for (let i = 0; i < mappings.length; i++) {
        const segments = mappings[i];
        for (let j = 1; j < segments.length; j++) {
            if (segments[j][0] < segments[j - 1][0]) {
                return i;
            }
        }
    }
    return mappings.length;
}
function sortMappings(mappings, owned) {
    const unosrtedIndex = firstUnsortedSegmentLine(mappings);
    if (unosrtedIndex === mappings.length)
        return mappings;
    if (!owned)
        mappings = mappings.slice();
    for (let i = unosrtedIndex; i < mappings.length; i++) {
        mappings[i] = sortSegments(mappings[i], owned);
    }
    return mappings;
}
function sortSegments(segments, owned) {
    if (!owned)
        segments = segments.slice();
    return segments.sort(segmentComparator);
}
function segmentComparator(a, b) {
    return a[0] - b[0];
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * A "leaf" node in the sourcemap tree, representing an original, unmodified
 * source file. Recursive segment tracing ends at the `OriginalSource`.
 */
class OriginalSource {
    constructor(filename, content) {
        this.filename = filename;
        this.content = content;
    }
    /**
     * Tracing a `SourceMapSegment` ends when we get to an `OriginalSource`,
     * meaning this line/column location originated from this source file.
     */
    traceSegment(line, column, name) {
        return { column, line, name, source: this };
    }
}

/* istanbul ignore next */
const Url$1 = (typeof URL !== 'undefined' ? URL : require('url').URL);
// Matches "..", which must be preceeded by "/" or the start of the string, and
// must be followed by a "/". We do not eat the following "/", so that the next
// iteration can match on it.
const parentRegex = /(^|\/)\.\.(?=\/|$)/g;
function isAbsoluteUrl(url) {
    try {
        return !!new Url$1(url);
    }
    catch (e) {
        return false;
    }
}
/**
 * Creates a directory name that is guaranteed to not be in `str`.
 */
function uniqInStr(str) {
    let uniq = String(Math.random()).slice(2);
    while (str.indexOf(uniq) > -1) {
        /* istanbul ignore next */
        uniq += uniq;
    }
    return uniq;
}
/**
 * Removes the filename from the path (everything trailing the last "/"). This
 * is only safe to call on a path, never call with an absolute or protocol
 * relative URL.
 */
function stripPathFilename(path) {
    path = normalizePath$5(path);
    const index = path.lastIndexOf('/');
    return path.slice(0, index + 1);
}
/**
 * Normalizes a protocol-relative URL, but keeps it protocol relative by
 * stripping out the protocl before returning it.
 */
function normalizeProtocolRelative(input, absoluteBase) {
    const { href, protocol } = new Url$1(input, absoluteBase);
    return href.slice(protocol.length);
}
/**
 * Normalizes a simple path (one that has no ".."s, or is absolute so ".."s can
 * be normalized absolutely).
 */
function normalizeSimplePath(input) {
    const { href } = new Url$1(input, 'https://foo.com/');
    return href.slice('https://foo.com/'.length);
}
/**
 * Normalizes a path, ensuring that excess ".."s are preserved for relative
 * paths in the output.
 *
 * If the input is absolute, this will return an absolutey normalized path, but
 * it will not have a leading "/".
 *
 * If the input has a leading "..", the output will have a leading "..".
 *
 * If the input has a leading ".", the output will not have a leading "."
 * unless there are too many ".."s, in which case there will be a leading "..".
 */
function normalizePath$5(input) {
    // If there are no ".."s, we can treat this as if it were an absolute path.
    // The return won't be an absolute path, so it's easy.
    if (!parentRegex.test(input))
        return normalizeSimplePath(input);
    // We already found one "..". Let's see how many there are.
    let total = 1;
    while (parentRegex.test(input))
        total++;
    // If there are ".."s, we need to prefix the the path with the same number of
    // unique directories. This is to ensure that we "remember" how many parent
    // directories we are accessing. Eg, "../../.." must keep 3, and "foo/../.."
    // must keep 1.
    const uniqDirectory = `z${uniqInStr(input)}/`;
    // uniqDirectory is just a "z", followed by numbers, followed by a "/". So
    // generating a runtime regex from it is safe. We'll use this search regex to
    // strip out our uniq directory names and insert any needed ".."s.
    const search = new RegExp(`^(?:${uniqDirectory})*`);
    // Now we can resolve the total path. If there are excess ".."s, they will
    // eliminate one or more of the unique directories we prefix with.
    const relative = normalizeSimplePath(uniqDirectory.repeat(total) + input);
    // We can now count the number of unique directories that were eliminated. If
    // there were 3, and 1 was eliminated, we know we only need to add 1 "..". If
    // 2 were eliminated, we need to insert 2 ".."s. If all 3 were eliminated,
    // then we need 3, etc. This replace is guranteed to match (it may match 0 or
    // more times), and we can count the total match to see how many were eliminated.
    return relative.replace(search, (all) => {
        const leftover = all.length / uniqDirectory.length;
        return '../'.repeat(total - leftover);
    });
}
/**
 * Attempts to resolve `input` URL relative to `base`.
 */
function resolve$3(input, base) {
    if (!base)
        base = '';
    // Absolute URLs are very easy to resolve right.
    if (isAbsoluteUrl(input))
        return new Url$1(input).href;
    if (base) {
        // Absolute URLs are easy...
        if (isAbsoluteUrl(base))
            return new Url$1(input, base).href;
        // If base is protocol relative, we'll resolve with it but keep the result
        // protocol relative.
        if (base.startsWith('//'))
            return normalizeProtocolRelative(input, `https:${base}`);
    }
    // Normalize input, but keep it protocol relative. We know base doesn't supply
    // a protocol, because that would have been handled above.
    if (input.startsWith('//'))
        return normalizeProtocolRelative(input, 'https://foo.com/');
    // We now know that base (if there is one) and input are paths. We've handled
    // both absolute and protocol-relative variations above.
    // Absolute paths don't need any special handling, because they cannot have
    // extra "." or ".."s. That'll all be stripped away. Input takes priority here,
    // because if input is an absolute path, base path won't affect it in any way.
    if (input.startsWith('/'))
        return '/' + normalizeSimplePath(input);
    // Since input and base are paths, we need to join them to do any further
    // processing. Paths are joined at the directory level, so we need to remove
    // the base's filename before joining. We also know that input does not have a
    // leading slash, and that the stripped base will have a trailing slash if
    // there are any directories (or it'll be empty).
    const joined = stripPathFilename(base) + input;
    // If base is an absolute path, then input will be relative to it.
    if (base.startsWith('/'))
        return '/' + normalizeSimplePath(joined);
    // We now know both base (if there is one) and input are relative paths.
    const relative = normalizePath$5(joined);
    // If base started with a leading ".", or there is no base and input started
    // with a ".", then we need to ensure that the relative path starts with a
    // ".". We don't know if relative starts with a "..", though, so check before
    // prepending.
    if ((base || input).startsWith('.') && !relative.startsWith('.')) {
        return './' + relative;
    }
    return relative;
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
function resolve$1$1(input, base) {
    // The base is always treated as a directory, if it's not empty.
    // https://github.com/mozilla/source-map/blob/8cb3ee57/lib/util.js#L327
    // https://github.com/chromium/chromium/blob/da4adbb3/third_party/blink/renderer/devtools/front_end/sdk/SourceMap.js#L400-L401
    if (base && !base.endsWith('/'))
        base += '/';
    return resolve$3(input, base);
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * A binary search implementation that returns the index if a match is found,
 * or the negated index of where the `needle` should be inserted.
 *
 * The `comparator` callback receives both the `item` under comparison and the
 * needle we are searching for. It must return `0` if the `item` is a match,
 * any negative number if `item` is too small (and we must search after it), or
 * any positive number if the `item` is too large (and we must search before
 * it).
 *
 * If no match is found, a negated index of where to insert the `needle` is
 * returned. This negated index is guaranteed to be less than 0. To insert an
 * item, negate it (again) and splice:
 *
 * ```js
 * const array = [1, 3];
 * const needle = 2;
 * const index = binarySearch(array, needle, (item, needle) => item - needle);
 *
 * assert.equal(index, -2);
 * assert.equal(~index, 1);
 * array.splice(~index, 0, needle);
 * assert.deepEqual(array, [1, 2, 3]);
 * ```
 */
function binarySearch$2(haystack, needle, comparator, low, high) {
    low = Math.max(low, 0);
    while (low <= high) {
        const mid = low + ((high - low) >> 1);
        const cmp = comparator(haystack[mid], needle);
        if (cmp === 0) {
            return mid;
        }
        if (cmp < 0) {
            low = mid + 1;
        }
        else {
            high = mid - 1;
        }
    }
    return ~low;
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * FastStringArray acts like a `Set` (allowing only one occurrence of a string
 * `key`), but provides the index of the `key` in the backing array.
 *
 * This is designed to allow synchronizing a second array with the contents of
 * the backing array, like how `sourcesContent[i]` is the source content
 * associated with `source[i]`, and there are never duplicates.
 */
class FastStringArray {
    constructor() {
        this.indexes = Object.create(null);
        this.array = [];
    }
    /**
     * Puts `key` into the backing array, if it is not already present. Returns
     * the index of the `key` in the backing array.
     */
    put(key) {
        const { array, indexes } = this;
        // The key may or may not be present. If it is present, it's a number.
        let index = indexes[key];
        // If it's not yet present, we need to insert it and track the index in the
        // indexes.
        if (index === undefined) {
            index = indexes[key] = array.length;
            array.push(key);
        }
        return index;
    }
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * SourceMapTree represents a single sourcemap, with the ability to trace
 * mappings into its child nodes (which may themselves be SourceMapTrees).
 */
class SourceMapTree {
    constructor(map, sources) {
        this.map = map;
        this.sources = sources;
        this.lastLine = 0;
        this.lastColumn = 0;
        this.lastIndex = 0;
    }
    /**
     * traceMappings is only called on the root level SourceMapTree, and begins
     * the process of resolving each mapping in terms of the original source
     * files.
     */
    traceMappings() {
        const mappings = [];
        const names = new FastStringArray();
        const sources = new FastStringArray();
        const sourcesContent = [];
        const { mappings: rootMappings, names: rootNames } = this.map;
        for (let i = 0; i < rootMappings.length; i++) {
            const segments = rootMappings[i];
            const tracedSegments = [];
            let lastTraced = undefined;
            for (let j = 0; j < segments.length; j++) {
                const segment = segments[j];
                // 1-length segments only move the current generated column, there's no
                // source information to gather from it.
                if (segment.length === 1)
                    continue;
                const source = this.sources[segment[1]];
                const traced = source.traceSegment(segment[2], segment[3], segment.length === 5 ? rootNames[segment[4]] : '');
                if (!traced)
                    continue;
                // So we traced a segment down into its original source file. Now push a
                // new segment pointing to this location.
                const { column, line, name } = traced;
                const { content, filename } = traced.source;
                // Store the source location, and ensure we keep sourcesContent up to
                // date with the sources array.
                const sourceIndex = sources.put(filename);
                sourcesContent[sourceIndex] = content;
                if (lastTraced &&
                    lastTraced[1] === sourceIndex &&
                    lastTraced[2] === line &&
                    lastTraced[3] === column) {
                    // This is a duplicate mapping pointing at the exact same starting point in the source file.
                    // It doesn't provide any new information, and only bloats the sourcemap.
                    continue;
                }
                // This looks like unnecessary duplication, but it noticeably increases
                // performance. If we were to push the nameIndex onto length-4 array, v8
                // would internally allocate 22 slots! That's 68 wasted bytes! Array
                // literals have the same capacity as their length, saving memory.
                if (name) {
                    lastTraced = [segment[0], sourceIndex, line, column, names.put(name)];
                }
                else {
                    lastTraced = [segment[0], sourceIndex, line, column];
                }
                tracedSegments.push(lastTraced);
            }
            mappings.push(tracedSegments);
        }
        // TODO: Make all sources relative to the sourceRoot.
        return defaults({
            mappings,
            names: names.array,
            sources: sources.array,
            sourcesContent,
        }, this.map);
    }
    /**
     * traceSegment is only called on children SourceMapTrees. It recurses down
     * into its own child SourceMapTrees, until we find the original source map.
     */
    traceSegment(line, column, name) {
        const { mappings, names } = this.map;
        // It's common for parent sourcemaps to have pointers to lines that have no
        // mapping (like a "//# sourceMappingURL=") at the end of the child file.
        if (line >= mappings.length)
            return null;
        const segments = mappings[line];
        if (segments.length === 0)
            return null;
        let low = 0;
        let high = segments.length - 1;
        if (line === this.lastLine) {
            if (column >= this.lastColumn) {
                low = this.lastIndex;
            }
            else {
                high = this.lastIndex;
            }
        }
        let index = binarySearch$2(segments, column, segmentComparator$1, low, high);
        this.lastLine = line;
        this.lastColumn = column;
        if (index === -1) {
            this.lastIndex = index;
            return null; // we come before any mapped segment
        }
        // If we can't find a segment that lines up to this column, we use the
        // segment before.
        if (index < 0) {
            index = ~index - 1;
        }
        this.lastIndex = index;
        const segment = segments[index];
        // 1-length segments only move the current generated column, there's no
        // source information to gather from it.
        if (segment.length === 1)
            return null;
        const source = this.sources[segment[1]];
        // So now we can recurse down, until we hit the original source file.
        return source.traceSegment(segment[2], segment[3], 
        // A child map's recorded name for this segment takes precedence over the
        // parent's mapped name. Imagine a mangler changing the name over, etc.
        segment.length === 5 ? names[segment[4]] : name);
    }
}
function segmentComparator$1(segment, column) {
    return segment[0] - column;
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Removes the filename from a path.
 */
function stripFilename(path) {
    if (!path)
        return '';
    const index = path.lastIndexOf('/');
    return path.slice(0, index + 1);
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
function asArray(value) {
    if (Array.isArray(value))
        return value;
    return [value];
}
/**
 * Recursively builds a tree structure out of sourcemap files, with each node
 * being either an `OriginalSource` "leaf" or a `SourceMapTree` composed of
 * `OriginalSource`s and `SourceMapTree`s.
 *
 * Every sourcemap is composed of a collection of source files and mappings
 * into locations of those source files. When we generate a `SourceMapTree` for
 * the sourcemap, we attempt to load each source file's own sourcemap. If it
 * does not have an associated sourcemap, it is considered an original,
 * unmodified source file.
 */
function buildSourceMapTree(input, loader, relativeRoot) {
    const maps = asArray(input).map(decodeSourceMap);
    const map = maps.pop();
    for (let i = 0; i < maps.length; i++) {
        if (maps[i].sources.length !== 1) {
            throw new Error(`Transformation map ${i} must have exactly one source file.\n` +
                'Did you specify these with the most recent transformation maps first?');
        }
    }
    const { sourceRoot, sources, sourcesContent } = map;
    const children = sources.map((sourceFile, i) => {
        // Each source file is loaded relative to the sourcemap's own sourceRoot,
        // which is itself relative to the sourcemap's parent.
        const uri = resolve$1$1(sourceFile || '', resolve$1$1(sourceRoot || '', stripFilename(relativeRoot)));
        // Use the provided loader callback to retrieve the file's sourcemap.
        // TODO: We should eventually support async loading of sourcemap files.
        const sourceMap = loader(uri);
        // If there is no sourcemap, then it is an unmodified source file.
        if (!sourceMap) {
            // The source file's actual contents must be included in the sourcemap
            // (done when generating the sourcemap) for it to be included as a
            // sourceContent in the output sourcemap.
            const sourceContent = sourcesContent ? sourcesContent[i] : null;
            return new OriginalSource(uri, sourceContent);
        }
        // Else, it's a real sourcemap, and we need to recurse into it to load its
        // source files.
        return buildSourceMapTree(decodeSourceMap(sourceMap), loader, uri);
    });
    let tree = new SourceMapTree(map, children);
    for (let i = maps.length - 1; i >= 0; i--) {
        tree = new SourceMapTree(maps[i], [tree]);
    }
    return tree;
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * A SourceMap v3 compatible sourcemap, which only includes fields that were
 * provided to it.
 */
class SourceMap$1 {
    constructor(map, options) {
        this.version = 3; // SourceMap spec says this should be first.
        if ('file' in map)
            this.file = map.file;
        this.mappings = options.decodedMappings ? map.mappings : encode$1(map.mappings);
        this.names = map.names;
        // TODO: We first need to make all source URIs relative to the sourceRoot
        // before we can support a sourceRoot.
        // if ('sourceRoot' in map) this.sourceRoot = map.sourceRoot;
        this.sources = map.sources;
        if (!options.excludeContent && 'sourcesContent' in map) {
            this.sourcesContent = map.sourcesContent;
        }
    }
    toString() {
        return JSON.stringify(this);
    }
}

/**
 * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Traces through all the mappings in the root sourcemap, through the sources
 * (and their sourcemaps), all the way back to the original source location.
 *
 * `loader` will be called every time we encounter a source file. If it returns
 * a sourcemap, we will recurse into that sourcemap to continue the trace. If
 * it returns a falsey value, that source file is treated as an original,
 * unmodified source file.
 *
 * Pass `excludeContent` to exclude any self-containing source file content
 * from the output sourcemap.
 *
 * Pass `decodedMappings` to receive a SourceMap with decoded (instead of
 * VLQ encoded) mappings.
 */
function remapping(input, loader, options) {
    const opts = typeof options === 'object' ? options : { excludeContent: !!options, decodedMappings: false };
    const graph = buildSourceMapTree(input, loader);
    return new SourceMap$1(graph.traceMappings(), opts);
}

function slash$3(p) {
    return p.replace(/\\/g, '/');
}
// Strip valid id prefix. This is prepended to resolved Ids that are
// not valid browser import specifiers by the importAnalysis plugin.
function unwrapId$1(id) {
    return id.startsWith(VALID_ID_PREFIX) ? id.slice(VALID_ID_PREFIX.length) : id;
}
const flattenId = (id) => id.replace(/(\s*>\s*)/g, '__').replace(/[\/\.]/g, '_');
const normalizeId$1 = (id) => id.replace(/(\s*>\s*)/g, ' > ');
function isBuiltin(id) {
    const deepMatch = id.match(deepImportRE);
    id = deepMatch ? deepMatch[1] || deepMatch[2] : id;
    return builtinModules_1.includes(id);
}
const bareImportRE = /^[\w@](?!.*:\/\/)/;
const deepImportRE = /^([^@][^/]*)\/|^(@[^/]+\/[^/]+)\//;
let isRunningWithYarnPnp;
try {
    isRunningWithYarnPnp = Boolean(require('pnpapi'));
}
catch { }
const ssrExtensions = ['.js', '.cjs', '.json', '.node'];
function resolveFrom$3(id, basedir, preserveSymlinks = false, ssr = false) {
    return resolve__default.sync(id, {
        basedir,
        extensions: ssr ? ssrExtensions : DEFAULT_EXTENSIONS,
        // necessary to work with pnpm
        preserveSymlinks: preserveSymlinks || isRunningWithYarnPnp || false
    });
}
/**
 * like `resolveFrom` but supports resolving `>` path in `id`,
 * for example: `foo > bar > baz`
 */
function nestedResolveFrom(id, basedir, preserveSymlinks = false) {
    const pkgs = id.split('>').map((pkg) => pkg.trim());
    try {
        for (const pkg of pkgs) {
            basedir = resolveFrom$3(pkg, basedir, preserveSymlinks);
        }
    }
    catch { }
    return basedir;
}
// set in bin/vite.js
const filter$1 = process.env.VITE_DEBUG_FILTER;
const DEBUG$1 = process.env.DEBUG;
function createDebugger(namespace, options = {}) {
    const log = debug$f(namespace);
    const { onlyWhenFocused } = options;
    const focus = typeof onlyWhenFocused === 'string' ? onlyWhenFocused : namespace;
    return (msg, ...args) => {
        if (filter$1 && !msg.includes(filter$1)) {
            return;
        }
        if (onlyWhenFocused && !(DEBUG$1 === null || DEBUG$1 === void 0 ? void 0 : DEBUG$1.includes(focus))) {
            return;
        }
        log(msg, ...args);
    };
}
const isWindows$4 = require$$0__default$1.platform() === 'win32';
const VOLUME_RE = /^[A-Z]:/i;
function normalizePath$4(id) {
    return path__default.posix.normalize(isWindows$4 ? slash$3(id) : id);
}
function fsPathFromId(id) {
    const fsPath = normalizePath$4(id.slice(FS_PREFIX.length));
    return fsPath.startsWith('/') || fsPath.match(VOLUME_RE)
        ? fsPath
        : `/${fsPath}`;
}
function ensureVolumeInPath(file) {
    return isWindows$4 ? path__default.resolve(file) : file;
}
const queryRE = /\?.*$/s;
const hashRE = /#.*$/s;
const cleanUrl = (url) => url.replace(hashRE, '').replace(queryRE, '');
const externalRE = /^(https?:)?\/\//;
const isExternalUrl = (url) => externalRE.test(url);
const dataUrlRE = /^\s*data:/i;
const isDataUrl = (url) => dataUrlRE.test(url);
const knownJsSrcRE = /\.((j|t)sx?|mjs|vue|marko|svelte|astro)($|\?)/;
const isJSRequest = (url) => {
    url = cleanUrl(url);
    if (knownJsSrcRE.test(url)) {
        return true;
    }
    if (!path__default.extname(url) && !url.endsWith('/')) {
        return true;
    }
    return false;
};
const importQueryRE = /(\?|&)import=?(?:&|$)/;
const internalPrefixes = [
    FS_PREFIX,
    VALID_ID_PREFIX,
    CLIENT_PUBLIC_PATH,
    ENV_PUBLIC_PATH
];
const InternalPrefixRE = new RegExp(`^(?:${internalPrefixes.join('|')})`);
const trailingSeparatorRE = /[\?&]$/;
const isImportRequest = (url) => importQueryRE.test(url);
const isInternalRequest = (url) => InternalPrefixRE.test(url);
function removeImportQuery(url) {
    return url.replace(importQueryRE, '$1').replace(trailingSeparatorRE, '');
}
function injectQuery(url, queryToInject) {
    // encode percents for consistent behavior with pathToFileURL
    // see #2614 for details
    let resolvedUrl = new require$$0$8.URL(url.replace(/%/g, '%25'), 'relative:///');
    if (resolvedUrl.protocol !== 'relative:') {
        resolvedUrl = require$$0$8.pathToFileURL(url);
    }
    let { protocol, pathname, search, hash } = resolvedUrl;
    if (protocol === 'file:') {
        pathname = pathname.slice(1);
    }
    pathname = decodeURIComponent(pathname);
    return `${pathname}?${queryToInject}${search ? `&` + search.slice(1) : ''}${hash || ''}`;
}
const timestampRE = /\bt=\d{13}&?\b/;
function removeTimestampQuery(url) {
    return url.replace(timestampRE, '').replace(trailingSeparatorRE, '');
}
async function asyncReplace(input, re, replacer) {
    let match;
    let remaining = input;
    let rewritten = '';
    while ((match = re.exec(remaining))) {
        rewritten += remaining.slice(0, match.index);
        rewritten += await replacer(match);
        remaining = remaining.slice(match.index + match[0].length);
    }
    rewritten += remaining;
    return rewritten;
}
function timeFrom(start, subtract = 0) {
    const time = perf_hooks.performance.now() - start - subtract;
    const timeString = (time.toFixed(2) + `ms`).padEnd(5, ' ');
    if (time < 10) {
        return source.green(timeString);
    }
    else if (time < 50) {
        return source.yellow(timeString);
    }
    else {
        return source.red(timeString);
    }
}
/**
 * pretty url for logging.
 */
function prettifyUrl(url, root) {
    url = removeTimestampQuery(url);
    const isAbsoluteFile = url.startsWith(root);
    if (isAbsoluteFile || url.startsWith(FS_PREFIX)) {
        let file = path__default.relative(root, isAbsoluteFile ? url : fsPathFromId(url));
        const seg = file.split('/');
        const npmIndex = seg.indexOf(`node_modules`);
        const isSourceMap = file.endsWith('.map');
        if (npmIndex > 0) {
            file = seg[npmIndex + 1];
            if (file.startsWith('@')) {
                file = `${file}/${seg[npmIndex + 2]}`;
            }
            file = `npm: ${source.dim(file)}${isSourceMap ? ` (source map)` : ``}`;
        }
        return source.dim(file);
    }
    else {
        return source.dim(url);
    }
}
function isObject$3(value) {
    return Object.prototype.toString.call(value) === '[object Object]';
}
function isDefined(value) {
    return value != null;
}
function lookupFile(dir, formats, pathOnly = false) {
    for (const format of formats) {
        const fullPath = path__default.join(dir, format);
        if (fs__default.existsSync(fullPath) && fs__default.statSync(fullPath).isFile()) {
            return pathOnly ? fullPath : fs__default.readFileSync(fullPath, 'utf-8');
        }
    }
    const parentDir = path__default.dirname(dir);
    if (parentDir !== dir) {
        return lookupFile(parentDir, formats, pathOnly);
    }
}
const splitRE = /\r?\n/;
const range$1 = 2;
function pad$1(source, n = 2) {
    const lines = source.split(splitRE);
    return lines.map((l) => ` `.repeat(n) + l).join(`\n`);
}
function posToNumber(source, pos) {
    if (typeof pos === 'number')
        return pos;
    const lines = source.split(splitRE);
    const { line, column } = pos;
    let start = 0;
    for (let i = 0; i < line - 1; i++) {
        start += lines[i].length + 1;
    }
    return start + column;
}
function numberToPos(source, offset) {
    if (typeof offset !== 'number')
        return offset;
    if (offset > source.length) {
        throw new Error(`offset is longer than source length! offset ${offset} > length ${source.length}`);
    }
    const lines = source.split(splitRE);
    let counted = 0;
    let line = 0;
    let column = 0;
    for (; line < lines.length; line++) {
        const lineLength = lines[line].length + 1;
        if (counted + lineLength >= offset) {
            column = offset - counted + 1;
            break;
        }
        counted += lineLength;
    }
    return { line: line + 1, column };
}
function generateCodeFrame(source, start = 0, end) {
    start = posToNumber(source, start);
    end = end || start;
    const lines = source.split(splitRE);
    let count = 0;
    const res = [];
    for (let i = 0; i < lines.length; i++) {
        count += lines[i].length + 1;
        if (count >= start) {
            for (let j = i - range$1; j <= i + range$1 || end > count; j++) {
                if (j < 0 || j >= lines.length)
                    continue;
                const line = j + 1;
                res.push(`${line}${' '.repeat(Math.max(3 - String(line).length, 0))}|  ${lines[j]}`);
                const lineLength = lines[j].length;
                if (j === i) {
                    // push underline
                    const pad = start - (count - lineLength) + 1;
                    const length = Math.max(1, end > count ? lineLength - pad : end - start);
                    res.push(`   |  ` + ' '.repeat(pad) + '^'.repeat(length));
                }
                else if (j > i) {
                    if (end > count) {
                        const length = Math.max(Math.min(end - count, lineLength), 1);
                        res.push(`   |  ` + '^'.repeat(length));
                    }
                    count += lineLength + 1;
                }
            }
            break;
        }
    }
    return res.join('\n');
}
function writeFile(filename, content) {
    const dir = path__default.dirname(filename);
    if (!fs__default.existsSync(dir)) {
        fs__default.mkdirSync(dir, { recursive: true });
    }
    fs__default.writeFileSync(filename, content);
}
/**
 * Use instead of fs.existsSync(filename)
 * #2051 if we don't have read permission on a directory, existsSync() still
 * works and will result in massively slow subsequent checks (which are
 * unnecessary in the first place)
 */
function isFileReadable(filename) {
    try {
        fs__default.accessSync(filename, fs__default.constants.R_OK);
        return true;
    }
    catch {
        return false;
    }
}
/**
 * Delete every file and subdirectory. **The given directory must exist.**
 * Pass an optional `skip` array to preserve files in the root directory.
 */
function emptyDir(dir, skip) {
    for (const file of fs__default.readdirSync(dir)) {
        if (skip === null || skip === void 0 ? void 0 : skip.includes(file)) {
            continue;
        }
        const abs = path__default.resolve(dir, file);
        // baseline is Node 12 so can't use rmSync :(
        if (fs__default.lstatSync(abs).isDirectory()) {
            emptyDir(abs);
            fs__default.rmdirSync(abs);
        }
        else {
            fs__default.unlinkSync(abs);
        }
    }
}
function copyDir(srcDir, destDir) {
    fs__default.mkdirSync(destDir, { recursive: true });
    for (const file of fs__default.readdirSync(srcDir)) {
        const srcFile = path__default.resolve(srcDir, file);
        if (srcFile === destDir) {
            continue;
        }
        const destFile = path__default.resolve(destDir, file);
        const stat = fs__default.statSync(srcFile);
        if (stat.isDirectory()) {
            copyDir(srcFile, destFile);
        }
        else {
            fs__default.copyFileSync(srcFile, destFile);
        }
    }
}
function ensureLeadingSlash(path) {
    return !path.startsWith('/') ? '/' + path : path;
}
function ensureWatchedFile(watcher, file, root) {
    if (file &&
        // only need to watch if out of root
        !file.startsWith(root + '/') &&
        // some rollup plugins use null bytes for private resolved Ids
        !file.includes('\0') &&
        fs__default.existsSync(file)) {
        // resolve file to normalized system path
        watcher.add(path__default.resolve(file));
    }
}
const escapedSpaceCharacters = /( |\\t|\\n|\\f|\\r)+/g;
async function processSrcSet(srcs, replacer) {
    const imageCandidates = srcs
        .split(',')
        .map((s) => {
        const [url, descriptor] = s
            .replace(escapedSpaceCharacters, ' ')
            .trim()
            .split(' ', 2);
        return { url, descriptor };
    })
        .filter(({ url }) => !!url);
    const ret = await Promise.all(imageCandidates.map(async ({ url, descriptor }) => {
        return {
            url: await replacer({ url, descriptor }),
            descriptor
        };
    }));
    const url = ret.reduce((prev, { url, descriptor }, index) => {
        descriptor = descriptor || '';
        return (prev +=
            url + ` ${descriptor}${index === ret.length - 1 ? '' : ', '}`);
    }, '');
    return url;
}
// based on https://github.com/sveltejs/svelte/blob/abf11bb02b2afbd3e4cac509a0f70e318c306364/src/compiler/utils/mapped_code.ts#L221
const nullSourceMap = {
    names: [],
    sources: [],
    mappings: '',
    version: 3
};
function combineSourcemaps(filename, sourcemapList) {
    if (sourcemapList.length === 0 ||
        sourcemapList.every((m) => m.sources.length === 0)) {
        return { ...nullSourceMap };
    }
    // We don't declare type here so we can convert/fake/map as RawSourceMap
    let map; //: SourceMap
    let mapIndex = 1;
    const useArrayInterface = sourcemapList.slice(0, -1).find((m) => m.sources.length !== 1) === undefined;
    if (useArrayInterface) {
        map = remapping(sourcemapList, () => null, true);
    }
    else {
        map = remapping(sourcemapList[0], function loader(sourcefile) {
            if (sourcefile === filename && sourcemapList[mapIndex]) {
                return sourcemapList[mapIndex++];
            }
            else {
                return { ...nullSourceMap };
            }
        }, true);
    }
    if (!map.file) {
        delete map.file;
    }
    return map;
}
function unique(arr) {
    return Array.from(new Set(arr));
}
function resolveHostname(optionsHost) {
    let host;
    if (optionsHost === undefined ||
        optionsHost === false ||
        optionsHost === 'localhost') {
        // Use a secure default
        host = '127.0.0.1';
    }
    else if (optionsHost === true) {
        // If passed --host in the CLI without arguments
        host = undefined; // undefined typically means 0.0.0.0 or :: (listen on all IPs)
    }
    else {
        host = optionsHost;
    }
    // Set host name to localhost when possible, unless the user explicitly asked for '127.0.0.1'
    const name = (optionsHost !== '127.0.0.1' && host === '127.0.0.1') ||
        host === '0.0.0.0' ||
        host === '::' ||
        host === undefined
        ? 'localhost'
        : host;
    return { host, name };
}
function arraify(target) {
    return Array.isArray(target) ? target : [target];
}
function toUpperCaseDriveLetter(pathName) {
    return pathName.replace(/^\w:/, (letter) => letter.toUpperCase());
}
const multilineCommentsRE = /\/\*(.|[\r\n])*?\*\//gm;
const singlelineCommentsRE = /\/\/.*/g;
/**
 * Dynamically import files. It will make sure it's not being compiled away by TS/Rollup.
 *
 * @param file File path to import.
 */
const dynamicImport = new Function('file', 'return import(file)');

/* eslint no-console: 0 */
const LogLevels = {
    silent: 0,
    error: 1,
    warn: 2,
    info: 3
};
let lastType;
let lastMsg;
let sameCount = 0;
function clearScreen() {
    const repeatCount = process.stdout.rows - 2;
    const blank = repeatCount > 0 ? '\n'.repeat(repeatCount) : '';
    console.log(blank);
    readline__default.cursorTo(process.stdout, 0, 0);
    readline__default.clearScreenDown(process.stdout);
}
function createLogger(level = 'info', options = {}) {
    if (options.customLogger) {
        return options.customLogger;
    }
    const loggedErrors = new WeakSet();
    const { prefix = '[vite]', allowClearScreen = true } = options;
    const thresh = LogLevels[level];
    const clear = allowClearScreen && process.stdout.isTTY && !process.env.CI
        ? clearScreen
        : () => { };
    function output(type, msg, options = {}) {
        if (thresh >= LogLevels[type]) {
            const method = type === 'info' ? 'log' : type;
            const format = () => {
                if (options.timestamp) {
                    const tag = type === 'info'
                        ? source.cyan.bold(prefix)
                        : type === 'warn'
                            ? source.yellow.bold(prefix)
                            : source.red.bold(prefix);
                    return `${source.dim(new Date().toLocaleTimeString())} ${tag} ${msg}`;
                }
                else {
                    return msg;
                }
            };
            if (options.error) {
                loggedErrors.add(options.error);
            }
            if (type === lastType && msg === lastMsg) {
                sameCount++;
                clear();
                console[method](format(), source.yellow(`(x${sameCount + 1})`));
            }
            else {
                sameCount = 0;
                lastMsg = msg;
                lastType = type;
                if (options.clear) {
                    clear();
                }
                console[method](format());
            }
        }
    }
    const warnedMessages = new Set();
    const logger = {
        hasWarned: false,
        info(msg, opts) {
            output('info', msg, opts);
        },
        warn(msg, opts) {
            logger.hasWarned = true;
            output('warn', msg, opts);
        },
        warnOnce(msg, opts) {
            if (warnedMessages.has(msg))
                return;
            logger.hasWarned = true;
            output('warn', msg, opts);
            warnedMessages.add(msg);
        },
        error(msg, opts) {
            logger.hasWarned = true;
            output('error', msg, opts);
        },
        clearScreen(type) {
            if (thresh >= LogLevels[type]) {
                clear();
            }
        },
        hasErrorLogged(error) {
            return loggedErrors.has(error);
        }
    };
    return logger;
}
function printHttpServerUrls(server, config) {
    const address = server.address();
    const isAddressInfo = (x) => x === null || x === void 0 ? void 0 : x.address;
    if (isAddressInfo(address)) {
        const hostname = resolveHostname(config.server.host);
        const protocol = config.server.https ? 'https' : 'http';
        printServerUrls(hostname, protocol, address.port, config.base, config.logger.info);
    }
}
function printServerUrls(hostname, protocol, port, base, info) {
    if (hostname.host === '127.0.0.1') {
        const url = `${protocol}://${hostname.name}:${source.bold(port)}${base}`;
        info(`  > Local: ${source.cyan(url)}`);
        if (hostname.name !== '127.0.0.1') {
            info(`  > Network: ${source.dim('use `--host` to expose')}`);
        }
    }
    else {
        Object.values(require$$0__default$1.networkInterfaces())
            .flatMap((nInterface) => nInterface !== null && nInterface !== void 0 ? nInterface : [])
            .filter((detail) => detail && detail.address && detail.family === 'IPv4')
            .map((detail) => {
            const type = detail.address.includes('127.0.0.1')
                ? 'Local:   '
                : 'Network: ';
            const host = detail.address.replace('127.0.0.1', hostname.name);
            const url = `${protocol}://${host}:${source.bold(port)}${base}`;
            return `  > ${type} ${source.cyan(url)}`;
        })
            .forEach((msg) => info(msg));
    }
}

const writeColors = {
    [0 /* JS */]: source.cyan,
    [1 /* CSS */]: source.magenta,
    [2 /* ASSET */]: source.green,
    [3 /* HTML */]: source.blue,
    [4 /* SOURCE_MAP */]: source.gray
};
function buildReporterPlugin(config) {
    const compress = require$$0$6.promisify(require$$0$9.gzip);
    const chunkLimit = config.build.chunkSizeWarningLimit;
    function isLarge(code) {
        // bail out on particularly large chunks
        return code.length / 1024 > chunkLimit;
    }
    async function getCompressedSize(code) {
        if (config.build.ssr ||
            !config.build.reportCompressedSize ||
            config.build.brotliSize === false) {
            return '';
        }
        return ` / gzip: ${((await compress(typeof code === 'string' ? code : Buffer.from(code)))
            .length / 1024).toFixed(2)} KiB`;
    }
    function printFileInfo(filePath, content, type, maxLength, compressedSize = '') {
        const outDir = normalizePath$4(path__default.relative(config.root, path__default.resolve(config.root, config.build.outDir))) + '/';
        const kibs = content.length / 1024;
        const sizeColor = kibs > chunkLimit ? source.yellow : source.dim;
        config.logger.info(`${source.gray(source.white.dim(outDir))}${writeColors[type](filePath.padEnd(maxLength + 2))} ${sizeColor(`${kibs.toFixed(2)} KiB${compressedSize}`)}`);
    }
    const tty = process.stdout.isTTY && !process.env.CI;
    const shouldLogInfo = LogLevels[config.logLevel || 'info'] >= LogLevels.info;
    let hasTransformed = false;
    let hasRenderedChunk = false;
    let transformedCount = 0;
    let chunkCount = 0;
    const logTransform = throttle((id) => {
        writeLine(`transforming (${transformedCount}) ${source.dim(path__default.relative(config.root, id))}`);
    });
    return {
        name: 'vite:reporter',
        transform(_, id) {
            transformedCount++;
            if (shouldLogInfo) {
                if (!tty) {
                    if (!hasTransformed) {
                        config.logger.info(`transforming...`);
                    }
                }
                else {
                    if (id.includes(`?`))
                        return;
                    logTransform(id);
                }
                hasTransformed = true;
            }
            return null;
        },
        buildEnd() {
            if (shouldLogInfo) {
                if (tty) {
                    process.stdout.clearLine(0);
                    process.stdout.cursorTo(0);
                }
                config.logger.info(`${source.green(`✓`)} ${transformedCount} modules transformed.`);
            }
        },
        renderStart() {
            chunkCount = 0;
        },
        renderChunk() {
            chunkCount++;
            if (shouldLogInfo) {
                if (!tty) {
                    if (!hasRenderedChunk) {
                        config.logger.info('rendering chunks...');
                    }
                }
                else {
                    writeLine(`rendering chunks (${chunkCount})...`);
                }
                hasRenderedChunk = true;
            }
            return null;
        },
        generateBundle() {
            if (shouldLogInfo && tty) {
                process.stdout.clearLine(0);
                process.stdout.cursorTo(0);
            }
        },
        async writeBundle(_, output) {
            let hasLargeChunks = false;
            if (shouldLogInfo) {
                let longest = 0;
                for (const file in output) {
                    const l = output[file].fileName.length;
                    if (l > longest)
                        longest = l;
                }
                // large chunks are deferred to be logged at the end so they are more
                // visible.
                const deferredLogs = [];
                await Promise.all(Object.keys(output).map(async (file) => {
                    const chunk = output[file];
                    if (chunk.type === 'chunk') {
                        const log = async () => {
                            printFileInfo(chunk.fileName, chunk.code, 0 /* JS */, longest, await getCompressedSize(chunk.code));
                            if (chunk.map) {
                                printFileInfo(chunk.fileName + '.map', chunk.map.toString(), 4 /* SOURCE_MAP */, longest);
                            }
                        };
                        if (isLarge(chunk.code)) {
                            hasLargeChunks = true;
                            deferredLogs.push(log);
                        }
                        else {
                            await log();
                        }
                    }
                    else if (chunk.source) {
                        const isCSS = chunk.fileName.endsWith('.css');
                        printFileInfo(chunk.fileName, chunk.source, isCSS ? 1 /* CSS */ : 2 /* ASSET */, longest, isCSS ? await getCompressedSize(chunk.source) : undefined);
                    }
                }));
                await Promise.all(deferredLogs.map((l) => l()));
            }
            else {
                hasLargeChunks = Object.keys(output).some((file) => {
                    const chunk = output[file];
                    return chunk.type === 'chunk' && chunk.code.length / 1024 > chunkLimit;
                });
            }
            if (hasLargeChunks &&
                config.build.minify &&
                !config.build.lib &&
                !config.build.ssr) {
                config.logger.warn(source.yellow(`\n(!) Some chunks are larger than ${chunkLimit} KiB after minification. Consider:\n` +
                    `- Using dynamic import() to code-split the application\n` +
                    `- Use build.rollupOptions.output.manualChunks to improve chunking: https://rollupjs.org/guide/en/#outputmanualchunks\n` +
                    `- Adjust chunk size limit for this warning via build.chunkSizeWarningLimit.`));
            }
        }
    };
}
function writeLine(output) {
    process.stdout.clearLine(0);
    process.stdout.cursorTo(0);
    if (output.length < process.stdout.columns) {
        process.stdout.write(output);
    }
    else {
        process.stdout.write(output.substring(0, process.stdout.columns - 1));
    }
}
function throttle(fn) {
    let timerHandle = null;
    return (...args) => {
        if (timerHandle)
            return;
        fn(...args);
        timerHandle = setTimeout(() => {
            timerHandle = null;
        }, 100);
    };
}

var charToInteger = {};
var chars$1 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
for (var i$1 = 0; i$1 < chars$1.length; i$1++) {
    charToInteger[chars$1.charCodeAt(i$1)] = i$1;
}
function encode(decoded) {
    var sourceFileIndex = 0; // second field
    var sourceCodeLine = 0; // third field
    var sourceCodeColumn = 0; // fourth field
    var nameIndex = 0; // fifth field
    var mappings = '';
    for (var i = 0; i < decoded.length; i++) {
        var line = decoded[i];
        if (i > 0)
            mappings += ';';
        if (line.length === 0)
            continue;
        var generatedCodeColumn = 0; // first field
        var lineMappings = [];
        for (var _i = 0, line_1 = line; _i < line_1.length; _i++) {
            var segment = line_1[_i];
            var segmentMappings = encodeInteger(segment[0] - generatedCodeColumn);
            generatedCodeColumn = segment[0];
            if (segment.length > 1) {
                segmentMappings +=
                    encodeInteger(segment[1] - sourceFileIndex) +
                        encodeInteger(segment[2] - sourceCodeLine) +
                        encodeInteger(segment[3] - sourceCodeColumn);
                sourceFileIndex = segment[1];
                sourceCodeLine = segment[2];
                sourceCodeColumn = segment[3];
            }
            if (segment.length === 5) {
                segmentMappings += encodeInteger(segment[4] - nameIndex);
                nameIndex = segment[4];
            }
            lineMappings.push(segmentMappings);
        }
        mappings += lineMappings.join(',');
    }
    return mappings;
}
function encodeInteger(num) {
    var result = '';
    num = num < 0 ? (-num << 1) | 1 : num << 1;
    do {
        var clamped = num & 31;
        num >>>= 5;
        if (num > 0) {
            clamped |= 32;
        }
        result += chars$1[clamped];
    } while (num > 0);
    return result;
}

var BitSet = function BitSet(arg) {
	this.bits = arg instanceof BitSet ? arg.bits.slice() : [];
};

BitSet.prototype.add = function add (n) {
	this.bits[n >> 5] |= 1 << (n & 31);
};

BitSet.prototype.has = function has (n) {
	return !!(this.bits[n >> 5] & (1 << (n & 31)));
};

var Chunk = function Chunk(start, end, content) {
	this.start = start;
	this.end = end;
	this.original = content;

	this.intro = '';
	this.outro = '';

	this.content = content;
	this.storeName = false;
	this.edited = false;

	// we make these non-enumerable, for sanity while debugging
	Object.defineProperties(this, {
		previous: { writable: true, value: null },
		next:     { writable: true, value: null }
	});
};

Chunk.prototype.appendLeft = function appendLeft (content) {
	this.outro += content;
};

Chunk.prototype.appendRight = function appendRight (content) {
	this.intro = this.intro + content;
};

Chunk.prototype.clone = function clone () {
	var chunk = new Chunk(this.start, this.end, this.original);

	chunk.intro = this.intro;
	chunk.outro = this.outro;
	chunk.content = this.content;
	chunk.storeName = this.storeName;
	chunk.edited = this.edited;

	return chunk;
};

Chunk.prototype.contains = function contains (index) {
	return this.start < index && index < this.end;
};

Chunk.prototype.eachNext = function eachNext (fn) {
	var chunk = this;
	while (chunk) {
		fn(chunk);
		chunk = chunk.next;
	}
};

Chunk.prototype.eachPrevious = function eachPrevious (fn) {
	var chunk = this;
	while (chunk) {
		fn(chunk);
		chunk = chunk.previous;
	}
};

Chunk.prototype.edit = function edit (content, storeName, contentOnly) {
	this.content = content;
	if (!contentOnly) {
		this.intro = '';
		this.outro = '';
	}
	this.storeName = storeName;

	this.edited = true;

	return this;
};

Chunk.prototype.prependLeft = function prependLeft (content) {
	this.outro = content + this.outro;
};

Chunk.prototype.prependRight = function prependRight (content) {
	this.intro = content + this.intro;
};

Chunk.prototype.split = function split (index) {
	var sliceIndex = index - this.start;

	var originalBefore = this.original.slice(0, sliceIndex);
	var originalAfter = this.original.slice(sliceIndex);

	this.original = originalBefore;

	var newChunk = new Chunk(index, this.end, originalAfter);
	newChunk.outro = this.outro;
	this.outro = '';

	this.end = index;

	if (this.edited) {
		// TODO is this block necessary?...
		newChunk.edit('', false);
		this.content = '';
	} else {
		this.content = originalBefore;
	}

	newChunk.next = this.next;
	if (newChunk.next) { newChunk.next.previous = newChunk; }
	newChunk.previous = this;
	this.next = newChunk;

	return newChunk;
};

Chunk.prototype.toString = function toString () {
	return this.intro + this.content + this.outro;
};

Chunk.prototype.trimEnd = function trimEnd (rx) {
	this.outro = this.outro.replace(rx, '');
	if (this.outro.length) { return true; }

	var trimmed = this.content.replace(rx, '');

	if (trimmed.length) {
		if (trimmed !== this.content) {
			this.split(this.start + trimmed.length).edit('', undefined, true);
		}
		return true;

	} else {
		this.edit('', undefined, true);

		this.intro = this.intro.replace(rx, '');
		if (this.intro.length) { return true; }
	}
};

Chunk.prototype.trimStart = function trimStart (rx) {
	this.intro = this.intro.replace(rx, '');
	if (this.intro.length) { return true; }

	var trimmed = this.content.replace(rx, '');

	if (trimmed.length) {
		if (trimmed !== this.content) {
			this.split(this.end - trimmed.length);
			this.edit('', undefined, true);
		}
		return true;

	} else {
		this.edit('', undefined, true);

		this.outro = this.outro.replace(rx, '');
		if (this.outro.length) { return true; }
	}
};

var btoa$1 = function () {
	throw new Error('Unsupported environment: `window.btoa` or `Buffer` should be supported.');
};
if (typeof window !== 'undefined' && typeof window.btoa === 'function') {
	btoa$1 = function (str) { return window.btoa(unescape(encodeURIComponent(str))); };
} else if (typeof Buffer === 'function') {
	btoa$1 = function (str) { return Buffer.from(str, 'utf-8').toString('base64'); };
}

var SourceMap = function SourceMap(properties) {
	this.version = 3;
	this.file = properties.file;
	this.sources = properties.sources;
	this.sourcesContent = properties.sourcesContent;
	this.names = properties.names;
	this.mappings = encode(properties.mappings);
};

SourceMap.prototype.toString = function toString () {
	return JSON.stringify(this);
};

SourceMap.prototype.toUrl = function toUrl () {
	return 'data:application/json;charset=utf-8;base64,' + btoa$1(this.toString());
};

function guessIndent(code) {
	var lines = code.split('\n');

	var tabbed = lines.filter(function (line) { return /^\t+/.test(line); });
	var spaced = lines.filter(function (line) { return /^ {2,}/.test(line); });

	if (tabbed.length === 0 && spaced.length === 0) {
		return null;
	}

	// More lines tabbed than spaced? Assume tabs, and
	// default to tabs in the case of a tie (or nothing
	// to go on)
	if (tabbed.length >= spaced.length) {
		return '\t';
	}

	// Otherwise, we need to guess the multiple
	var min = spaced.reduce(function (previous, current) {
		var numSpaces = /^ +/.exec(current)[0].length;
		return Math.min(numSpaces, previous);
	}, Infinity);

	return new Array(min + 1).join(' ');
}

function getRelativePath(from, to) {
	var fromParts = from.split(/[/\\]/);
	var toParts = to.split(/[/\\]/);

	fromParts.pop(); // get dirname

	while (fromParts[0] === toParts[0]) {
		fromParts.shift();
		toParts.shift();
	}

	if (fromParts.length) {
		var i = fromParts.length;
		while (i--) { fromParts[i] = '..'; }
	}

	return fromParts.concat(toParts).join('/');
}

var toString$2 = Object.prototype.toString;

function isObject$2(thing) {
	return toString$2.call(thing) === '[object Object]';
}

function getLocator(source) {
	var originalLines = source.split('\n');
	var lineOffsets = [];

	for (var i = 0, pos = 0; i < originalLines.length; i++) {
		lineOffsets.push(pos);
		pos += originalLines[i].length + 1;
	}

	return function locate(index) {
		var i = 0;
		var j = lineOffsets.length;
		while (i < j) {
			var m = (i + j) >> 1;
			if (index < lineOffsets[m]) {
				j = m;
			} else {
				i = m + 1;
			}
		}
		var line = i - 1;
		var column = index - lineOffsets[line];
		return { line: line, column: column };
	};
}

var Mappings = function Mappings(hires) {
	this.hires = hires;
	this.generatedCodeLine = 0;
	this.generatedCodeColumn = 0;
	this.raw = [];
	this.rawSegments = this.raw[this.generatedCodeLine] = [];
	this.pending = null;
};

Mappings.prototype.addEdit = function addEdit (sourceIndex, content, loc, nameIndex) {
	if (content.length) {
		var segment = [this.generatedCodeColumn, sourceIndex, loc.line, loc.column];
		if (nameIndex >= 0) {
			segment.push(nameIndex);
		}
		this.rawSegments.push(segment);
	} else if (this.pending) {
		this.rawSegments.push(this.pending);
	}

	this.advance(content);
	this.pending = null;
};

Mappings.prototype.addUneditedChunk = function addUneditedChunk (sourceIndex, chunk, original, loc, sourcemapLocations) {
	var originalCharIndex = chunk.start;
	var first = true;

	while (originalCharIndex < chunk.end) {
		if (this.hires || first || sourcemapLocations.has(originalCharIndex)) {
			this.rawSegments.push([this.generatedCodeColumn, sourceIndex, loc.line, loc.column]);
		}

		if (original[originalCharIndex] === '\n') {
			loc.line += 1;
			loc.column = 0;
			this.generatedCodeLine += 1;
			this.raw[this.generatedCodeLine] = this.rawSegments = [];
			this.generatedCodeColumn = 0;
			first = true;
		} else {
			loc.column += 1;
			this.generatedCodeColumn += 1;
			first = false;
		}

		originalCharIndex += 1;
	}

	this.pending = null;
};

Mappings.prototype.advance = function advance (str) {
	if (!str) { return; }

	var lines = str.split('\n');

	if (lines.length > 1) {
		for (var i = 0; i < lines.length - 1; i++) {
			this.generatedCodeLine++;
			this.raw[this.generatedCodeLine] = this.rawSegments = [];
		}
		this.generatedCodeColumn = 0;
	}

	this.generatedCodeColumn += lines[lines.length - 1].length;
};

var n = '\n';

var warned$1 = {
	insertLeft: false,
	insertRight: false,
	storeName: false
};

var MagicString = function MagicString(string, options) {
	if ( options === void 0 ) options = {};

	var chunk = new Chunk(0, string.length, string);

	Object.defineProperties(this, {
		original:              { writable: true, value: string },
		outro:                 { writable: true, value: '' },
		intro:                 { writable: true, value: '' },
		firstChunk:            { writable: true, value: chunk },
		lastChunk:             { writable: true, value: chunk },
		lastSearchedChunk:     { writable: true, value: chunk },
		byStart:               { writable: true, value: {} },
		byEnd:                 { writable: true, value: {} },
		filename:              { writable: true, value: options.filename },
		indentExclusionRanges: { writable: true, value: options.indentExclusionRanges },
		sourcemapLocations:    { writable: true, value: new BitSet() },
		storedNames:           { writable: true, value: {} },
		indentStr:             { writable: true, value: guessIndent(string) }
	});

	this.byStart[0] = chunk;
	this.byEnd[string.length] = chunk;
};

MagicString.prototype.addSourcemapLocation = function addSourcemapLocation (char) {
	this.sourcemapLocations.add(char);
};

MagicString.prototype.append = function append (content) {
	if (typeof content !== 'string') { throw new TypeError('outro content must be a string'); }

	this.outro += content;
	return this;
};

MagicString.prototype.appendLeft = function appendLeft (index, content) {
	if (typeof content !== 'string') { throw new TypeError('inserted content must be a string'); }

	this._split(index);

	var chunk = this.byEnd[index];

	if (chunk) {
		chunk.appendLeft(content);
	} else {
		this.intro += content;
	}
	return this;
};

MagicString.prototype.appendRight = function appendRight (index, content) {
	if (typeof content !== 'string') { throw new TypeError('inserted content must be a string'); }

	this._split(index);

	var chunk = this.byStart[index];

	if (chunk) {
		chunk.appendRight(content);
	} else {
		this.outro += content;
	}
	return this;
};

MagicString.prototype.clone = function clone () {
	var cloned = new MagicString(this.original, { filename: this.filename });

	var originalChunk = this.firstChunk;
	var clonedChunk = (cloned.firstChunk = cloned.lastSearchedChunk = originalChunk.clone());

	while (originalChunk) {
		cloned.byStart[clonedChunk.start] = clonedChunk;
		cloned.byEnd[clonedChunk.end] = clonedChunk;

		var nextOriginalChunk = originalChunk.next;
		var nextClonedChunk = nextOriginalChunk && nextOriginalChunk.clone();

		if (nextClonedChunk) {
			clonedChunk.next = nextClonedChunk;
			nextClonedChunk.previous = clonedChunk;

			clonedChunk = nextClonedChunk;
		}

		originalChunk = nextOriginalChunk;
	}

	cloned.lastChunk = clonedChunk;

	if (this.indentExclusionRanges) {
		cloned.indentExclusionRanges = this.indentExclusionRanges.slice();
	}

	cloned.sourcemapLocations = new BitSet(this.sourcemapLocations);

	cloned.intro = this.intro;
	cloned.outro = this.outro;

	return cloned;
};

MagicString.prototype.generateDecodedMap = function generateDecodedMap (options) {
		var this$1$1 = this;

	options = options || {};

	var sourceIndex = 0;
	var names = Object.keys(this.storedNames);
	var mappings = new Mappings(options.hires);

	var locate = getLocator(this.original);

	if (this.intro) {
		mappings.advance(this.intro);
	}

	this.firstChunk.eachNext(function (chunk) {
		var loc = locate(chunk.start);

		if (chunk.intro.length) { mappings.advance(chunk.intro); }

		if (chunk.edited) {
			mappings.addEdit(
				sourceIndex,
				chunk.content,
				loc,
				chunk.storeName ? names.indexOf(chunk.original) : -1
			);
		} else {
			mappings.addUneditedChunk(sourceIndex, chunk, this$1$1.original, loc, this$1$1.sourcemapLocations);
		}

		if (chunk.outro.length) { mappings.advance(chunk.outro); }
	});

	return {
		file: options.file ? options.file.split(/[/\\]/).pop() : null,
		sources: [options.source ? getRelativePath(options.file || '', options.source) : null],
		sourcesContent: options.includeContent ? [this.original] : [null],
		names: names,
		mappings: mappings.raw
	};
};

MagicString.prototype.generateMap = function generateMap (options) {
	return new SourceMap(this.generateDecodedMap(options));
};

MagicString.prototype.getIndentString = function getIndentString () {
	return this.indentStr === null ? '\t' : this.indentStr;
};

MagicString.prototype.indent = function indent (indentStr, options) {
	var pattern = /^[^\r\n]/gm;

	if (isObject$2(indentStr)) {
		options = indentStr;
		indentStr = undefined;
	}

	indentStr = indentStr !== undefined ? indentStr : this.indentStr || '\t';

	if (indentStr === '') { return this; } // noop

	options = options || {};

	// Process exclusion ranges
	var isExcluded = {};

	if (options.exclude) {
		var exclusions =
			typeof options.exclude[0] === 'number' ? [options.exclude] : options.exclude;
		exclusions.forEach(function (exclusion) {
			for (var i = exclusion[0]; i < exclusion[1]; i += 1) {
				isExcluded[i] = true;
			}
		});
	}

	var shouldIndentNextCharacter = options.indentStart !== false;
	var replacer = function (match) {
		if (shouldIndentNextCharacter) { return ("" + indentStr + match); }
		shouldIndentNextCharacter = true;
		return match;
	};

	this.intro = this.intro.replace(pattern, replacer);

	var charIndex = 0;
	var chunk = this.firstChunk;

	while (chunk) {
		var end = chunk.end;

		if (chunk.edited) {
			if (!isExcluded[charIndex]) {
				chunk.content = chunk.content.replace(pattern, replacer);

				if (chunk.content.length) {
					shouldIndentNextCharacter = chunk.content[chunk.content.length - 1] === '\n';
				}
			}
		} else {
			charIndex = chunk.start;

			while (charIndex < end) {
				if (!isExcluded[charIndex]) {
					var char = this.original[charIndex];

					if (char === '\n') {
						shouldIndentNextCharacter = true;
					} else if (char !== '\r' && shouldIndentNextCharacter) {
						shouldIndentNextCharacter = false;

						if (charIndex === chunk.start) {
							chunk.prependRight(indentStr);
						} else {
							this._splitChunk(chunk, charIndex);
							chunk = chunk.next;
							chunk.prependRight(indentStr);
						}
					}
				}

				charIndex += 1;
			}
		}

		charIndex = chunk.end;
		chunk = chunk.next;
	}

	this.outro = this.outro.replace(pattern, replacer);

	return this;
};

MagicString.prototype.insert = function insert () {
	throw new Error('magicString.insert(...) is deprecated. Use prependRight(...) or appendLeft(...)');
};

MagicString.prototype.insertLeft = function insertLeft (index, content) {
	if (!warned$1.insertLeft) {
		console.warn('magicString.insertLeft(...) is deprecated. Use magicString.appendLeft(...) instead'); // eslint-disable-line no-console
		warned$1.insertLeft = true;
	}

	return this.appendLeft(index, content);
};

MagicString.prototype.insertRight = function insertRight (index, content) {
	if (!warned$1.insertRight) {
		console.warn('magicString.insertRight(...) is deprecated. Use magicString.prependRight(...) instead'); // eslint-disable-line no-console
		warned$1.insertRight = true;
	}

	return this.prependRight(index, content);
};

MagicString.prototype.move = function move (start, end, index) {
	if (index >= start && index <= end) { throw new Error('Cannot move a selection inside itself'); }

	this._split(start);
	this._split(end);
	this._split(index);

	var first = this.byStart[start];
	var last = this.byEnd[end];

	var oldLeft = first.previous;
	var oldRight = last.next;

	var newRight = this.byStart[index];
	if (!newRight && last === this.lastChunk) { return this; }
	var newLeft = newRight ? newRight.previous : this.lastChunk;

	if (oldLeft) { oldLeft.next = oldRight; }
	if (oldRight) { oldRight.previous = oldLeft; }

	if (newLeft) { newLeft.next = first; }
	if (newRight) { newRight.previous = last; }

	if (!first.previous) { this.firstChunk = last.next; }
	if (!last.next) {
		this.lastChunk = first.previous;
		this.lastChunk.next = null;
	}

	first.previous = newLeft;
	last.next = newRight || null;

	if (!newLeft) { this.firstChunk = first; }
	if (!newRight) { this.lastChunk = last; }
	return this;
};

MagicString.prototype.overwrite = function overwrite (start, end, content, options) {
	if (typeof content !== 'string') { throw new TypeError('replacement content must be a string'); }

	while (start < 0) { start += this.original.length; }
	while (end < 0) { end += this.original.length; }

	if (end > this.original.length) { throw new Error('end is out of bounds'); }
	if (start === end)
		{ throw new Error('Cannot overwrite a zero-length range – use appendLeft or prependRight instead'); }

	this._split(start);
	this._split(end);

	if (options === true) {
		if (!warned$1.storeName) {
			console.warn('The final argument to magicString.overwrite(...) should be an options object. See https://github.com/rich-harris/magic-string'); // eslint-disable-line no-console
			warned$1.storeName = true;
		}

		options = { storeName: true };
	}
	var storeName = options !== undefined ? options.storeName : false;
	var contentOnly = options !== undefined ? options.contentOnly : false;

	if (storeName) {
		var original = this.original.slice(start, end);
		this.storedNames[original] = true;
	}

	var first = this.byStart[start];
	var last = this.byEnd[end];

	if (first) {
		if (end > first.end && first.next !== this.byStart[first.end]) {
			throw new Error('Cannot overwrite across a split point');
		}

		first.edit(content, storeName, contentOnly);

		if (first !== last) {
			var chunk = first.next;
			while (chunk !== last) {
				chunk.edit('', false);
				chunk = chunk.next;
			}

			chunk.edit('', false);
		}
	} else {
		// must be inserting at the end
		var newChunk = new Chunk(start, end, '').edit(content, storeName);

		// TODO last chunk in the array may not be the last chunk, if it's moved...
		last.next = newChunk;
		newChunk.previous = last;
	}
	return this;
};

MagicString.prototype.prepend = function prepend (content) {
	if (typeof content !== 'string') { throw new TypeError('outro content must be a string'); }

	this.intro = content + this.intro;
	return this;
};

MagicString.prototype.prependLeft = function prependLeft (index, content) {
	if (typeof content !== 'string') { throw new TypeError('inserted content must be a string'); }

	this._split(index);

	var chunk = this.byEnd[index];

	if (chunk) {
		chunk.prependLeft(content);
	} else {
		this.intro = content + this.intro;
	}
	return this;
};

MagicString.prototype.prependRight = function prependRight (index, content) {
	if (typeof content !== 'string') { throw new TypeError('inserted content must be a string'); }

	this._split(index);

	var chunk = this.byStart[index];

	if (chunk) {
		chunk.prependRight(content);
	} else {
		this.outro = content + this.outro;
	}
	return this;
};

MagicString.prototype.remove = function remove (start, end) {
	while (start < 0) { start += this.original.length; }
	while (end < 0) { end += this.original.length; }

	if (start === end) { return this; }

	if (start < 0 || end > this.original.length) { throw new Error('Character is out of bounds'); }
	if (start > end) { throw new Error('end must be greater than start'); }

	this._split(start);
	this._split(end);

	var chunk = this.byStart[start];

	while (chunk) {
		chunk.intro = '';
		chunk.outro = '';
		chunk.edit('');

		chunk = end > chunk.end ? this.byStart[chunk.end] : null;
	}
	return this;
};

MagicString.prototype.lastChar = function lastChar () {
	if (this.outro.length)
		{ return this.outro[this.outro.length - 1]; }
	var chunk = this.lastChunk;
	do {
		if (chunk.outro.length)
			{ return chunk.outro[chunk.outro.length - 1]; }
		if (chunk.content.length)
			{ return chunk.content[chunk.content.length - 1]; }
		if (chunk.intro.length)
			{ return chunk.intro[chunk.intro.length - 1]; }
	} while (chunk = chunk.previous);
	if (this.intro.length)
		{ return this.intro[this.intro.length - 1]; }
	return '';
};

MagicString.prototype.lastLine = function lastLine () {
	var lineIndex = this.outro.lastIndexOf(n);
	if (lineIndex !== -1)
		{ return this.outro.substr(lineIndex + 1); }
	var lineStr = this.outro;
	var chunk = this.lastChunk;
	do {
		if (chunk.outro.length > 0) {
			lineIndex = chunk.outro.lastIndexOf(n);
			if (lineIndex !== -1)
				{ return chunk.outro.substr(lineIndex + 1) + lineStr; }
			lineStr = chunk.outro + lineStr;
		}

		if (chunk.content.length > 0) {
			lineIndex = chunk.content.lastIndexOf(n);
			if (lineIndex !== -1)
				{ return chunk.content.substr(lineIndex + 1) + lineStr; }
			lineStr = chunk.content + lineStr;
		}

		if (chunk.intro.length > 0) {
			lineIndex = chunk.intro.lastIndexOf(n);
			if (lineIndex !== -1)
				{ return chunk.intro.substr(lineIndex + 1) + lineStr; }
			lineStr = chunk.intro + lineStr;
		}
	} while (chunk = chunk.previous);
	lineIndex = this.intro.lastIndexOf(n);
	if (lineIndex !== -1)
		{ return this.intro.substr(lineIndex + 1) + lineStr; }
	return this.intro + lineStr;
};

MagicString.prototype.slice = function slice (start, end) {
		if ( start === void 0 ) start = 0;
		if ( end === void 0 ) end = this.original.length;

	while (start < 0) { start += this.original.length; }
	while (end < 0) { end += this.original.length; }

	var result = '';

	// find start chunk
	var chunk = this.firstChunk;
	while (chunk && (chunk.start > start || chunk.end <= start)) {
		// found end chunk before start
		if (chunk.start < end && chunk.end >= end) {
			return result;
		}

		chunk = chunk.next;
	}

	if (chunk && chunk.edited && chunk.start !== start)
		{ throw new Error(("Cannot use replaced character " + start + " as slice start anchor.")); }

	var startChunk = chunk;
	while (chunk) {
		if (chunk.intro && (startChunk !== chunk || chunk.start === start)) {
			result += chunk.intro;
		}

		var containsEnd = chunk.start < end && chunk.end >= end;
		if (containsEnd && chunk.edited && chunk.end !== end)
			{ throw new Error(("Cannot use replaced character " + end + " as slice end anchor.")); }

		var sliceStart = startChunk === chunk ? start - chunk.start : 0;
		var sliceEnd = containsEnd ? chunk.content.length + end - chunk.end : chunk.content.length;

		result += chunk.content.slice(sliceStart, sliceEnd);

		if (chunk.outro && (!containsEnd || chunk.end === end)) {
			result += chunk.outro;
		}

		if (containsEnd) {
			break;
		}

		chunk = chunk.next;
	}

	return result;
};

// TODO deprecate this? not really very useful
MagicString.prototype.snip = function snip (start, end) {
	var clone = this.clone();
	clone.remove(0, start);
	clone.remove(end, clone.original.length);

	return clone;
};

MagicString.prototype._split = function _split (index) {
	if (this.byStart[index] || this.byEnd[index]) { return; }

	var chunk = this.lastSearchedChunk;
	var searchForward = index > chunk.end;

	while (chunk) {
		if (chunk.contains(index)) { return this._splitChunk(chunk, index); }

		chunk = searchForward ? this.byStart[chunk.end] : this.byEnd[chunk.start];
	}
};

MagicString.prototype._splitChunk = function _splitChunk (chunk, index) {
	if (chunk.edited && chunk.content.length) {
		// zero-length edited chunks are a special case (overlapping replacements)
		var loc = getLocator(this.original)(index);
		throw new Error(
			("Cannot split a chunk that has already been edited (" + (loc.line) + ":" + (loc.column) + " – \"" + (chunk.original) + "\")")
		);
	}

	var newChunk = chunk.split(index);

	this.byEnd[index] = chunk;
	this.byStart[index] = newChunk;
	this.byEnd[newChunk.end] = newChunk;

	if (chunk === this.lastChunk) { this.lastChunk = newChunk; }

	this.lastSearchedChunk = chunk;
	return true;
};

MagicString.prototype.toString = function toString () {
	var str = this.intro;

	var chunk = this.firstChunk;
	while (chunk) {
		str += chunk.toString();
		chunk = chunk.next;
	}

	return str + this.outro;
};

MagicString.prototype.isEmpty = function isEmpty () {
	var chunk = this.firstChunk;
	do {
		if (chunk.intro.length && chunk.intro.trim() ||
				chunk.content.length && chunk.content.trim() ||
				chunk.outro.length && chunk.outro.trim())
			{ return false; }
	} while (chunk = chunk.next);
	return true;
};

MagicString.prototype.length = function length () {
	var chunk = this.firstChunk;
	var length = 0;
	do {
		length += chunk.intro.length + chunk.content.length + chunk.outro.length;
	} while (chunk = chunk.next);
	return length;
};

MagicString.prototype.trimLines = function trimLines () {
	return this.trim('[\\r\\n]');
};

MagicString.prototype.trim = function trim (charType) {
	return this.trimStart(charType).trimEnd(charType);
};

MagicString.prototype.trimEndAborted = function trimEndAborted (charType) {
	var rx = new RegExp((charType || '\\s') + '+$');

	this.outro = this.outro.replace(rx, '');
	if (this.outro.length) { return true; }

	var chunk = this.lastChunk;

	do {
		var end = chunk.end;
		var aborted = chunk.trimEnd(rx);

		// if chunk was trimmed, we have a new lastChunk
		if (chunk.end !== end) {
			if (this.lastChunk === chunk) {
				this.lastChunk = chunk.next;
			}

			this.byEnd[chunk.end] = chunk;
			this.byStart[chunk.next.start] = chunk.next;
			this.byEnd[chunk.next.end] = chunk.next;
		}

		if (aborted) { return true; }
		chunk = chunk.previous;
	} while (chunk);

	return false;
};

MagicString.prototype.trimEnd = function trimEnd (charType) {
	this.trimEndAborted(charType);
	return this;
};
MagicString.prototype.trimStartAborted = function trimStartAborted (charType) {
	var rx = new RegExp('^' + (charType || '\\s') + '+');

	this.intro = this.intro.replace(rx, '');
	if (this.intro.length) { return true; }

	var chunk = this.firstChunk;

	do {
		var end = chunk.end;
		var aborted = chunk.trimStart(rx);

		if (chunk.end !== end) {
			// special case...
			if (chunk === this.lastChunk) { this.lastChunk = chunk.next; }

			this.byEnd[chunk.end] = chunk;
			this.byStart[chunk.next.start] = chunk.next;
			this.byEnd[chunk.next.end] = chunk.next;
		}

		if (aborted) { return true; }
		chunk = chunk.next;
	} while (chunk);

	return false;
};

MagicString.prototype.trimStart = function trimStart (charType) {
	this.trimStartAborted(charType);
	return this;
};

/**
 * @param typeMap [Object] Map of MIME type -> Array[extensions]
 * @param ...
 */
function Mime$1() {
  this._types = Object.create(null);
  this._extensions = Object.create(null);

  for (let i = 0; i < arguments.length; i++) {
    this.define(arguments[i]);
  }

  this.define = this.define.bind(this);
  this.getType = this.getType.bind(this);
  this.getExtension = this.getExtension.bind(this);
}

/**
 * Define mimetype -> extension mappings.  Each key is a mime-type that maps
 * to an array of extensions associated with the type.  The first extension is
 * used as the default extension for the type.
 *
 * e.g. mime.define({'audio/ogg', ['oga', 'ogg', 'spx']});
 *
 * If a type declares an extension that has already been defined, an error will
 * be thrown.  To suppress this error and force the extension to be associated
 * with the new type, pass `force`=true.  Alternatively, you may prefix the
 * extension with "*" to map the type to extension, without mapping the
 * extension to the type.
 *
 * e.g. mime.define({'audio/wav', ['wav']}, {'audio/x-wav', ['*wav']});
 *
 *
 * @param map (Object) type definitions
 * @param force (Boolean) if true, force overriding of existing definitions
 */
Mime$1.prototype.define = function(typeMap, force) {
  for (let type in typeMap) {
    let extensions = typeMap[type].map(function(t) {
      return t.toLowerCase();
    });
    type = type.toLowerCase();

    for (let i = 0; i < extensions.length; i++) {
      const ext = extensions[i];

      // '*' prefix = not the preferred type for this extension.  So fixup the
      // extension, and skip it.
      if (ext[0] === '*') {
        continue;
      }

      if (!force && (ext in this._types)) {
        throw new Error(
          'Attempt to change mapping for "' + ext +
          '" extension from "' + this._types[ext] + '" to "' + type +
          '". Pass `force=true` to allow this, otherwise remove "' + ext +
          '" from the list of extensions for "' + type + '".'
        );
      }

      this._types[ext] = type;
    }

    // Use first extension as default
    if (force || !this._extensions[type]) {
      const ext = extensions[0];
      this._extensions[type] = (ext[0] !== '*') ? ext : ext.substr(1);
    }
  }
};

/**
 * Lookup a mime type based on extension
 */
Mime$1.prototype.getType = function(path) {
  path = String(path);
  let last = path.replace(/^.*[/\\]/, '').toLowerCase();
  let ext = last.replace(/^.*\./, '').toLowerCase();

  let hasPath = last.length < path.length;
  let hasDot = ext.length < last.length - 1;

  return (hasDot || !hasPath) && this._types[ext] || null;
};

/**
 * Return file extension associated with a mime type
 */
Mime$1.prototype.getExtension = function(type) {
  type = /^\s*([^;\s]*)/.test(type) && RegExp.$1;
  return type && this._extensions[type.toLowerCase()] || null;
};

var Mime_1 = Mime$1;

var standard = {"application/andrew-inset":["ez"],"application/applixware":["aw"],"application/atom+xml":["atom"],"application/atomcat+xml":["atomcat"],"application/atomdeleted+xml":["atomdeleted"],"application/atomsvc+xml":["atomsvc"],"application/atsc-dwd+xml":["dwd"],"application/atsc-held+xml":["held"],"application/atsc-rsat+xml":["rsat"],"application/bdoc":["bdoc"],"application/calendar+xml":["xcs"],"application/ccxml+xml":["ccxml"],"application/cdfx+xml":["cdfx"],"application/cdmi-capability":["cdmia"],"application/cdmi-container":["cdmic"],"application/cdmi-domain":["cdmid"],"application/cdmi-object":["cdmio"],"application/cdmi-queue":["cdmiq"],"application/cu-seeme":["cu"],"application/dash+xml":["mpd"],"application/davmount+xml":["davmount"],"application/docbook+xml":["dbk"],"application/dssc+der":["dssc"],"application/dssc+xml":["xdssc"],"application/ecmascript":["ecma","es"],"application/emma+xml":["emma"],"application/emotionml+xml":["emotionml"],"application/epub+zip":["epub"],"application/exi":["exi"],"application/fdt+xml":["fdt"],"application/font-tdpfr":["pfr"],"application/geo+json":["geojson"],"application/gml+xml":["gml"],"application/gpx+xml":["gpx"],"application/gxf":["gxf"],"application/gzip":["gz"],"application/hjson":["hjson"],"application/hyperstudio":["stk"],"application/inkml+xml":["ink","inkml"],"application/ipfix":["ipfix"],"application/its+xml":["its"],"application/java-archive":["jar","war","ear"],"application/java-serialized-object":["ser"],"application/java-vm":["class"],"application/javascript":["js","mjs"],"application/json":["json","map"],"application/json5":["json5"],"application/jsonml+json":["jsonml"],"application/ld+json":["jsonld"],"application/lgr+xml":["lgr"],"application/lost+xml":["lostxml"],"application/mac-binhex40":["hqx"],"application/mac-compactpro":["cpt"],"application/mads+xml":["mads"],"application/manifest+json":["webmanifest"],"application/marc":["mrc"],"application/marcxml+xml":["mrcx"],"application/mathematica":["ma","nb","mb"],"application/mathml+xml":["mathml"],"application/mbox":["mbox"],"application/mediaservercontrol+xml":["mscml"],"application/metalink+xml":["metalink"],"application/metalink4+xml":["meta4"],"application/mets+xml":["mets"],"application/mmt-aei+xml":["maei"],"application/mmt-usd+xml":["musd"],"application/mods+xml":["mods"],"application/mp21":["m21","mp21"],"application/mp4":["mp4s","m4p"],"application/mrb-consumer+xml":["*xdf"],"application/mrb-publish+xml":["*xdf"],"application/msword":["doc","dot"],"application/mxf":["mxf"],"application/n-quads":["nq"],"application/n-triples":["nt"],"application/node":["cjs"],"application/octet-stream":["bin","dms","lrf","mar","so","dist","distz","pkg","bpk","dump","elc","deploy","exe","dll","deb","dmg","iso","img","msi","msp","msm","buffer"],"application/oda":["oda"],"application/oebps-package+xml":["opf"],"application/ogg":["ogx"],"application/omdoc+xml":["omdoc"],"application/onenote":["onetoc","onetoc2","onetmp","onepkg"],"application/oxps":["oxps"],"application/p2p-overlay+xml":["relo"],"application/patch-ops-error+xml":["*xer"],"application/pdf":["pdf"],"application/pgp-encrypted":["pgp"],"application/pgp-signature":["asc","sig"],"application/pics-rules":["prf"],"application/pkcs10":["p10"],"application/pkcs7-mime":["p7m","p7c"],"application/pkcs7-signature":["p7s"],"application/pkcs8":["p8"],"application/pkix-attr-cert":["ac"],"application/pkix-cert":["cer"],"application/pkix-crl":["crl"],"application/pkix-pkipath":["pkipath"],"application/pkixcmp":["pki"],"application/pls+xml":["pls"],"application/postscript":["ai","eps","ps"],"application/provenance+xml":["provx"],"application/pskc+xml":["pskcxml"],"application/raml+yaml":["raml"],"application/rdf+xml":["rdf","owl"],"application/reginfo+xml":["rif"],"application/relax-ng-compact-syntax":["rnc"],"application/resource-lists+xml":["rl"],"application/resource-lists-diff+xml":["rld"],"application/rls-services+xml":["rs"],"application/route-apd+xml":["rapd"],"application/route-s-tsid+xml":["sls"],"application/route-usd+xml":["rusd"],"application/rpki-ghostbusters":["gbr"],"application/rpki-manifest":["mft"],"application/rpki-roa":["roa"],"application/rsd+xml":["rsd"],"application/rss+xml":["rss"],"application/rtf":["rtf"],"application/sbml+xml":["sbml"],"application/scvp-cv-request":["scq"],"application/scvp-cv-response":["scs"],"application/scvp-vp-request":["spq"],"application/scvp-vp-response":["spp"],"application/sdp":["sdp"],"application/senml+xml":["senmlx"],"application/sensml+xml":["sensmlx"],"application/set-payment-initiation":["setpay"],"application/set-registration-initiation":["setreg"],"application/shf+xml":["shf"],"application/sieve":["siv","sieve"],"application/smil+xml":["smi","smil"],"application/sparql-query":["rq"],"application/sparql-results+xml":["srx"],"application/srgs":["gram"],"application/srgs+xml":["grxml"],"application/sru+xml":["sru"],"application/ssdl+xml":["ssdl"],"application/ssml+xml":["ssml"],"application/swid+xml":["swidtag"],"application/tei+xml":["tei","teicorpus"],"application/thraud+xml":["tfi"],"application/timestamped-data":["tsd"],"application/toml":["toml"],"application/ttml+xml":["ttml"],"application/ubjson":["ubj"],"application/urc-ressheet+xml":["rsheet"],"application/urc-targetdesc+xml":["td"],"application/voicexml+xml":["vxml"],"application/wasm":["wasm"],"application/widget":["wgt"],"application/winhlp":["hlp"],"application/wsdl+xml":["wsdl"],"application/wspolicy+xml":["wspolicy"],"application/xaml+xml":["xaml"],"application/xcap-att+xml":["xav"],"application/xcap-caps+xml":["xca"],"application/xcap-diff+xml":["xdf"],"application/xcap-el+xml":["xel"],"application/xcap-error+xml":["xer"],"application/xcap-ns+xml":["xns"],"application/xenc+xml":["xenc"],"application/xhtml+xml":["xhtml","xht"],"application/xliff+xml":["xlf"],"application/xml":["xml","xsl","xsd","rng"],"application/xml-dtd":["dtd"],"application/xop+xml":["xop"],"application/xproc+xml":["xpl"],"application/xslt+xml":["*xsl","xslt"],"application/xspf+xml":["xspf"],"application/xv+xml":["mxml","xhvml","xvml","xvm"],"application/yang":["yang"],"application/yin+xml":["yin"],"application/zip":["zip"],"audio/3gpp":["*3gpp"],"audio/adpcm":["adp"],"audio/amr":["amr"],"audio/basic":["au","snd"],"audio/midi":["mid","midi","kar","rmi"],"audio/mobile-xmf":["mxmf"],"audio/mp3":["*mp3"],"audio/mp4":["m4a","mp4a"],"audio/mpeg":["mpga","mp2","mp2a","mp3","m2a","m3a"],"audio/ogg":["oga","ogg","spx","opus"],"audio/s3m":["s3m"],"audio/silk":["sil"],"audio/wav":["wav"],"audio/wave":["*wav"],"audio/webm":["weba"],"audio/xm":["xm"],"font/collection":["ttc"],"font/otf":["otf"],"font/ttf":["ttf"],"font/woff":["woff"],"font/woff2":["woff2"],"image/aces":["exr"],"image/apng":["apng"],"image/avif":["avif"],"image/bmp":["bmp"],"image/cgm":["cgm"],"image/dicom-rle":["drle"],"image/emf":["emf"],"image/fits":["fits"],"image/g3fax":["g3"],"image/gif":["gif"],"image/heic":["heic"],"image/heic-sequence":["heics"],"image/heif":["heif"],"image/heif-sequence":["heifs"],"image/hej2k":["hej2"],"image/hsj2":["hsj2"],"image/ief":["ief"],"image/jls":["jls"],"image/jp2":["jp2","jpg2"],"image/jpeg":["jpeg","jpg","jpe"],"image/jph":["jph"],"image/jphc":["jhc"],"image/jpm":["jpm"],"image/jpx":["jpx","jpf"],"image/jxr":["jxr"],"image/jxra":["jxra"],"image/jxrs":["jxrs"],"image/jxs":["jxs"],"image/jxsc":["jxsc"],"image/jxsi":["jxsi"],"image/jxss":["jxss"],"image/ktx":["ktx"],"image/ktx2":["ktx2"],"image/png":["png"],"image/sgi":["sgi"],"image/svg+xml":["svg","svgz"],"image/t38":["t38"],"image/tiff":["tif","tiff"],"image/tiff-fx":["tfx"],"image/webp":["webp"],"image/wmf":["wmf"],"message/disposition-notification":["disposition-notification"],"message/global":["u8msg"],"message/global-delivery-status":["u8dsn"],"message/global-disposition-notification":["u8mdn"],"message/global-headers":["u8hdr"],"message/rfc822":["eml","mime"],"model/3mf":["3mf"],"model/gltf+json":["gltf"],"model/gltf-binary":["glb"],"model/iges":["igs","iges"],"model/mesh":["msh","mesh","silo"],"model/mtl":["mtl"],"model/obj":["obj"],"model/stl":["stl"],"model/vrml":["wrl","vrml"],"model/x3d+binary":["*x3db","x3dbz"],"model/x3d+fastinfoset":["x3db"],"model/x3d+vrml":["*x3dv","x3dvz"],"model/x3d+xml":["x3d","x3dz"],"model/x3d-vrml":["x3dv"],"text/cache-manifest":["appcache","manifest"],"text/calendar":["ics","ifb"],"text/coffeescript":["coffee","litcoffee"],"text/css":["css"],"text/csv":["csv"],"text/html":["html","htm","shtml"],"text/jade":["jade"],"text/jsx":["jsx"],"text/less":["less"],"text/markdown":["markdown","md"],"text/mathml":["mml"],"text/mdx":["mdx"],"text/n3":["n3"],"text/plain":["txt","text","conf","def","list","log","in","ini"],"text/richtext":["rtx"],"text/rtf":["*rtf"],"text/sgml":["sgml","sgm"],"text/shex":["shex"],"text/slim":["slim","slm"],"text/spdx":["spdx"],"text/stylus":["stylus","styl"],"text/tab-separated-values":["tsv"],"text/troff":["t","tr","roff","man","me","ms"],"text/turtle":["ttl"],"text/uri-list":["uri","uris","urls"],"text/vcard":["vcard"],"text/vtt":["vtt"],"text/xml":["*xml"],"text/yaml":["yaml","yml"],"video/3gpp":["3gp","3gpp"],"video/3gpp2":["3g2"],"video/h261":["h261"],"video/h263":["h263"],"video/h264":["h264"],"video/iso.segment":["m4s"],"video/jpeg":["jpgv"],"video/jpm":["*jpm","jpgm"],"video/mj2":["mj2","mjp2"],"video/mp2t":["ts"],"video/mp4":["mp4","mp4v","mpg4"],"video/mpeg":["mpeg","mpg","mpe","m1v","m2v"],"video/ogg":["ogv"],"video/quicktime":["qt","mov"],"video/webm":["webm"]};

let Mime = Mime_1;
var lite = new Mime(standard);

const assetUrlRE = /__VITE_ASSET__([a-z\d]{8})__(?:\$_(.*?)__)?/g;
// urls in JS must be quoted as strings, so when replacing them we need
// a different regex
const assetUrlQuotedRE = /"__VITE_ASSET__([a-z\d]{8})__(?:\$_(.*?)__)?"/g;
const rawRE = /(\?|&)raw(?:&|$)/;
const urlRE = /(\?|&)url(?:&|$)/;
const chunkToEmittedAssetsMap = new WeakMap();
const assetCache = new WeakMap();
const assetHashToFilenameMap = new WeakMap();
// save hashes of the files that has been emitted in build watch
const emittedHashMap = new WeakMap();
/**
 * Also supports loading plain strings with import text from './foo.txt?raw'
 */
function assetPlugin(config) {
    // assetHashToFilenameMap initialization in buildStart causes getAssetFilename to return undefined
    assetHashToFilenameMap.set(config, new Map());
    return {
        name: 'vite:asset',
        buildStart() {
            assetCache.set(config, new Map());
            emittedHashMap.set(config, new Set());
        },
        resolveId(id) {
            if (!config.assetsInclude(cleanUrl(id))) {
                return;
            }
            // imports to absolute urls pointing to files in /public
            // will fail to resolve in the main resolver. handle them here.
            const publicFile = checkPublicFile(id, config);
            if (publicFile) {
                return id;
            }
        },
        async load(id) {
            if (id.startsWith('\0')) {
                // Rollup convention, this id should be handled by the
                // plugin that marked it with \0
                return;
            }
            // raw requests, read from disk
            if (rawRE.test(id)) {
                const file = checkPublicFile(id, config) || cleanUrl(id);
                // raw query, read file and return as string
                return `export default ${JSON.stringify(await fs$r.promises.readFile(file, 'utf-8'))}`;
            }
            if (!config.assetsInclude(cleanUrl(id)) && !urlRE.test(id)) {
                return;
            }
            id = id.replace(urlRE, '$1').replace(/[\?&]$/, '');
            const url = await fileToUrl(id, config, this);
            return `export default ${JSON.stringify(url)}`;
        },
        renderChunk(code, chunk) {
            let match;
            let s;
            while ((match = assetUrlQuotedRE.exec(code))) {
                s = s || (s = new MagicString(code));
                const [full, hash, postfix = ''] = match;
                // some internal plugins may still need to emit chunks (e.g. worker) so
                // fallback to this.getFileName for that.
                const file = getAssetFilename(hash, config) || this.getFileName(hash);
                registerAssetToChunk(chunk, file);
                const outputFilepath = config.base + file + postfix;
                s.overwrite(match.index, match.index + full.length, JSON.stringify(outputFilepath));
            }
            if (s) {
                return {
                    code: s.toString(),
                    map: config.build.sourcemap ? s.generateMap({ hires: true }) : null
                };
            }
            else {
                return null;
            }
        },
        generateBundle(_, bundle) {
            // do not emit assets for SSR build
            if (config.command === 'build' && config.build.ssr) {
                for (const file in bundle) {
                    if (bundle[file].type === 'asset' &&
                        !file.includes('ssr-manifest.json')) {
                        delete bundle[file];
                    }
                }
            }
        }
    };
}
function registerAssetToChunk(chunk, file) {
    let emitted = chunkToEmittedAssetsMap.get(chunk);
    if (!emitted) {
        emitted = new Set();
        chunkToEmittedAssetsMap.set(chunk, emitted);
    }
    emitted.add(cleanUrl(file));
}
function checkPublicFile(url, { publicDir }) {
    // note if the file is in /public, the resolver would have returned it
    // as-is so it's not going to be a fully resolved path.
    if (!publicDir || !url.startsWith('/')) {
        return;
    }
    const publicFile = path__default.join(publicDir, cleanUrl(url));
    if (fs__default.existsSync(publicFile)) {
        return publicFile;
    }
    else {
        return;
    }
}
function fileToUrl(id, config, ctx) {
    if (config.command === 'serve') {
        return fileToDevUrl(id, config);
    }
    else {
        return fileToBuiltUrl(id, config, ctx);
    }
}
function fileToDevUrl(id, config) {
    var _a, _b;
    let rtn;
    if (checkPublicFile(id, config)) {
        // in public dir, keep the url as-is
        rtn = id;
    }
    else if (id.startsWith(config.root)) {
        // in project root, infer short public path
        rtn = '/' + path__default.posix.relative(config.root, id);
    }
    else {
        // outside of project root, use absolute fs path
        // (this is special handled by the serve static middleware
        rtn = path__default.posix.join(FS_PREFIX + id);
    }
    const origin = (_b = (_a = config.server) === null || _a === void 0 ? void 0 : _a.origin) !== null && _b !== void 0 ? _b : '';
    return origin + config.base + rtn.replace(/^\//, '');
}
function getAssetFilename(hash, config) {
    var _a;
    return (_a = assetHashToFilenameMap.get(config)) === null || _a === void 0 ? void 0 : _a.get(hash);
}
/**
 * converts the source filepath of the asset to the output filename based on the assetFileNames option. \
 * this function imitates the behavior of rollup.js. \
 * https://rollupjs.org/guide/en/#outputassetfilenames
 *
 * @example
 * ```ts
 * const content = Buffer.from('text');
 * const fileName = assetFileNamesToFileName(
 *   'assets/[name].[hash][extname]',
 *   '/path/to/file.txt',
 *   getAssetHash(content),
 *   content
 * )
 * // fileName: 'assets/file.982d9e3e.txt'
 * ```
 *
 * @param assetFileNames filename pattern. e.g. `'assets/[name].[hash][extname]'`
 * @param file filepath of the asset
 * @param contentHash hash of the asset. used for `'[hash]'` placeholder
 * @param content content of the asset. passed to `assetFileNames` if `assetFileNames` is a function
 * @returns output filename
 */
function assetFileNamesToFileName(assetFileNames, file, contentHash, content) {
    const basename = path__default.basename(file);
    // placeholders for `assetFileNames`
    // `hash` is slightly different from the rollup's one
    const extname = path__default.extname(basename);
    const ext = extname.substr(1);
    const name = basename.slice(0, -extname.length);
    const hash = contentHash;
    if (typeof assetFileNames === 'function') {
        assetFileNames = assetFileNames({
            name: file,
            source: content,
            type: 'asset'
        });
        if (typeof assetFileNames !== 'string') {
            throw new TypeError('assetFileNames must return a string');
        }
    }
    else if (typeof assetFileNames !== 'string') {
        throw new TypeError('assetFileNames must be a string or a function');
    }
    const fileName = assetFileNames.replace(/\[\w+\]/g, (placeholder) => {
        switch (placeholder) {
            case '[ext]':
                return ext;
            case '[extname]':
                return extname;
            case '[hash]':
                return hash;
            case '[name]':
                return name;
        }
        throw new Error(`invalid placeholder ${placeholder} in assetFileNames "${assetFileNames}"`);
    });
    return fileName;
}
/**
 * Register an asset to be emitted as part of the bundle (if necessary)
 * and returns the resolved public URL
 */
async function fileToBuiltUrl(id, config, pluginContext, skipPublicCheck = false) {
    var _a, _b, _c;
    if (!skipPublicCheck && checkPublicFile(id, config)) {
        return config.base + id.slice(1);
    }
    const cache = assetCache.get(config);
    const cached = cache.get(id);
    if (cached) {
        return cached;
    }
    const file = cleanUrl(id);
    const content = await fs$r.promises.readFile(file);
    let url;
    if (config.build.lib ||
        (!file.endsWith('.svg') &&
            content.length < Number(config.build.assetsInlineLimit))) {
        // base64 inlined as a string
        url = `data:${lite.getType(file)};base64,${content.toString('base64')}`;
    }
    else {
        // emit as asset
        // rollup supports `import.meta.ROLLUP_FILE_URL_*`, but it generates code
        // that uses runtime url sniffing and it can be verbose when targeting
        // non-module format. It also fails to cascade the asset content change
        // into the chunk's hash, so we have to do our own content hashing here.
        // https://bundlers.tooling.report/hashing/asset-cascade/
        // https://github.com/rollup/rollup/issues/3415
        const map = assetHashToFilenameMap.get(config);
        const contentHash = getAssetHash(content);
        const { search, hash } = require$$0$8.parse(id);
        const postfix = (search || '') + (hash || '');
        const output = (_b = (_a = config.build) === null || _a === void 0 ? void 0 : _a.rollupOptions) === null || _b === void 0 ? void 0 : _b.output;
        const assetFileNames = (_c = (output && !Array.isArray(output) ? output.assetFileNames : undefined)) !== null && _c !== void 0 ? _c : 
        // defaults to '<assetsDir>/[name].[hash][extname]'
        // slightly different from rollup's one ('assets/[name]-[hash][extname]')
        path__default.posix.join(config.build.assetsDir, '[name].[hash][extname]');
        const fileName = assetFileNamesToFileName(assetFileNames, file, contentHash, content);
        if (!map.has(contentHash)) {
            map.set(contentHash, fileName);
        }
        const emittedSet = emittedHashMap.get(config);
        if (!emittedSet.has(contentHash)) {
            const name = normalizePath$4(path__default.relative(config.root, file));
            pluginContext.emitFile({
                name,
                fileName,
                type: 'asset',
                source: content
            });
            emittedSet.add(contentHash);
        }
        url = `__VITE_ASSET__${contentHash}__${postfix ? `$_${postfix}__` : ``}`;
    }
    cache.set(id, url);
    return url;
}
function getAssetHash(content) {
    return require$$1.createHash('sha256').update(content).digest('hex').slice(0, 8);
}
async function urlToBuiltUrl(url, importer, config, pluginContext) {
    if (checkPublicFile(url, config)) {
        return config.base + url.slice(1);
    }
    const file = url.startsWith('/')
        ? path__default.join(config.root, url)
        : path__default.join(path__default.dirname(importer), url);
    return fileToBuiltUrl(file, config, pluginContext, 
    // skip public check since we just did it above
    true);
}

var tasks = {};

var utils$k = {};

var array$1 = {};

Object.defineProperty(array$1, "__esModule", { value: true });
array$1.splitWhen = array$1.flatten = void 0;
function flatten$1(items) {
    return items.reduce((collection, item) => [].concat(collection, item), []);
}
array$1.flatten = flatten$1;
function splitWhen(items, predicate) {
    const result = [[]];
    let groupIndex = 0;
    for (const item of items) {
        if (predicate(item)) {
            groupIndex++;
            result[groupIndex] = [];
        }
        else {
            result[groupIndex].push(item);
        }
    }
    return result;
}
array$1.splitWhen = splitWhen;

var errno$1 = {};

Object.defineProperty(errno$1, "__esModule", { value: true });
errno$1.isEnoentCodeError = void 0;
function isEnoentCodeError(error) {
    return error.code === 'ENOENT';
}
errno$1.isEnoentCodeError = isEnoentCodeError;

var fs$q = {};

Object.defineProperty(fs$q, "__esModule", { value: true });
fs$q.createDirentFromStats = void 0;
class DirentFromStats$1 {
    constructor(name, stats) {
        this.name = name;
        this.isBlockDevice = stats.isBlockDevice.bind(stats);
        this.isCharacterDevice = stats.isCharacterDevice.bind(stats);
        this.isDirectory = stats.isDirectory.bind(stats);
        this.isFIFO = stats.isFIFO.bind(stats);
        this.isFile = stats.isFile.bind(stats);
        this.isSocket = stats.isSocket.bind(stats);
        this.isSymbolicLink = stats.isSymbolicLink.bind(stats);
    }
}
function createDirentFromStats$1(name, stats) {
    return new DirentFromStats$1(name, stats);
}
fs$q.createDirentFromStats = createDirentFromStats$1;

var path$s = {};

Object.defineProperty(path$s, "__esModule", { value: true });
path$s.removeLeadingDotSegment = path$s.escape = path$s.makeAbsolute = path$s.unixify = void 0;
const path$r = path__default;
const LEADING_DOT_SEGMENT_CHARACTERS_COUNT = 2; // ./ or .\\
const UNESCAPED_GLOB_SYMBOLS_RE = /(\\?)([()*?[\]{|}]|^!|[!+@](?=\())/g;
/**
 * Designed to work only with simple paths: `dir\\file`.
 */
function unixify(filepath) {
    return filepath.replace(/\\/g, '/');
}
path$s.unixify = unixify;
function makeAbsolute(cwd, filepath) {
    return path$r.resolve(cwd, filepath);
}
path$s.makeAbsolute = makeAbsolute;
function escape$1(pattern) {
    return pattern.replace(UNESCAPED_GLOB_SYMBOLS_RE, '\\$2');
}
path$s.escape = escape$1;
function removeLeadingDotSegment(entry) {
    // We do not use `startsWith` because this is 10x slower than current implementation for some cases.
    // eslint-disable-next-line @typescript-eslint/prefer-string-starts-ends-with
    if (entry.charAt(0) === '.') {
        const secondCharactery = entry.charAt(1);
        if (secondCharactery === '/' || secondCharactery === '\\') {
            return entry.slice(LEADING_DOT_SEGMENT_CHARACTERS_COUNT);
        }
    }
    return entry;
}
path$s.removeLeadingDotSegment = removeLeadingDotSegment;

var pattern$1 = {};

/*!
 * is-extglob <https://github.com/jonschlinkert/is-extglob>
 *
 * Copyright (c) 2014-2016, Jon Schlinkert.
 * Licensed under the MIT License.
 */

var isExtglob$1 = function isExtglob(str) {
  if (typeof str !== 'string' || str === '') {
    return false;
  }

  var match;
  while ((match = /(\\).|([@?!+*]\(.*\))/g.exec(str))) {
    if (match[2]) return true;
    str = str.slice(match.index + match[0].length);
  }

  return false;
};

/*!
 * is-glob <https://github.com/jonschlinkert/is-glob>
 *
 * Copyright (c) 2014-2017, Jon Schlinkert.
 * Released under the MIT License.
 */

var isExtglob = isExtglob$1;
var chars = { '{': '}', '(': ')', '[': ']'};
var strictRegex = /\\(.)|(^!|\*|[\].+)]\?|\[[^\\\]]+\]|\{[^\\}]+\}|\(\?[:!=][^\\)]+\)|\([^|]+\|[^\\)]+\))/;
var relaxedRegex = /\\(.)|(^!|[*?{}()[\]]|\(\?)/;

var isGlob$2 = function isGlob(str, options) {
  if (typeof str !== 'string' || str === '') {
    return false;
  }

  if (isExtglob(str)) {
    return true;
  }

  var regex = strictRegex;
  var match;

  // optionally relax regex
  if (options && options.strict === false) {
    regex = relaxedRegex;
  }

  while ((match = regex.exec(str))) {
    if (match[2]) return true;
    var idx = match.index + match[0].length;

    // if an open bracket/brace/paren is escaped,
    // set the index to the next closing character
    var open = match[1];
    var close = open ? chars[open] : null;
    if (open && close) {
      var n = str.indexOf(close, idx);
      if (n !== -1) {
        idx = n + 1;
      }
    }

    str = str.slice(idx);
  }
  return false;
};

var isGlob$1 = isGlob$2;
var pathPosixDirname = path__default.posix.dirname;
var isWin32 = require$$0__default$1.platform() === 'win32';

var slash$2 = '/';
var backslash = /\\/g;
var enclosure = /[\{\[].*[\}\]]$/;
var globby$2 = /(^|[^\\])([\{\[]|\([^\)]+$)/;
var escaped = /\\([\!\*\?\|\[\]\(\)\{\}])/g;

/**
 * @param {string} str
 * @param {Object} opts
 * @param {boolean} [opts.flipBackslashes=true]
 * @returns {string}
 */
var globParent$2 = function globParent(str, opts) {
  var options = Object.assign({ flipBackslashes: true }, opts);

  // flip windows path separators
  if (options.flipBackslashes && isWin32 && str.indexOf(slash$2) < 0) {
    str = str.replace(backslash, slash$2);
  }

  // special case for strings ending in enclosure containing path separator
  if (enclosure.test(str)) {
    str += slash$2;
  }

  // preserves full path in case of trailing path separator
  str += 'a';

  // remove path parts that are globby
  do {
    str = pathPosixDirname(str);
  } while (isGlob$1(str) || globby$2.test(str));

  // remove escape chars and return result
  return str.replace(escaped, '$1');
};

var utils$j = {};

(function (exports) {

exports.isInteger = num => {
  if (typeof num === 'number') {
    return Number.isInteger(num);
  }
  if (typeof num === 'string' && num.trim() !== '') {
    return Number.isInteger(Number(num));
  }
  return false;
};

/**
 * Find a node of the given type
 */

exports.find = (node, type) => node.nodes.find(node => node.type === type);

/**
 * Find a node of the given type
 */

exports.exceedsLimit = (min, max, step = 1, limit) => {
  if (limit === false) return false;
  if (!exports.isInteger(min) || !exports.isInteger(max)) return false;
  return ((Number(max) - Number(min)) / Number(step)) >= limit;
};

/**
 * Escape the given node with '\\' before node.value
 */

exports.escapeNode = (block, n = 0, type) => {
  let node = block.nodes[n];
  if (!node) return;

  if ((type && node.type === type) || node.type === 'open' || node.type === 'close') {
    if (node.escaped !== true) {
      node.value = '\\' + node.value;
      node.escaped = true;
    }
  }
};

/**
 * Returns true if the given brace node should be enclosed in literal braces
 */

exports.encloseBrace = node => {
  if (node.type !== 'brace') return false;
  if ((node.commas >> 0 + node.ranges >> 0) === 0) {
    node.invalid = true;
    return true;
  }
  return false;
};

/**
 * Returns true if a brace node is invalid.
 */

exports.isInvalidBrace = block => {
  if (block.type !== 'brace') return false;
  if (block.invalid === true || block.dollar) return true;
  if ((block.commas >> 0 + block.ranges >> 0) === 0) {
    block.invalid = true;
    return true;
  }
  if (block.open !== true || block.close !== true) {
    block.invalid = true;
    return true;
  }
  return false;
};

/**
 * Returns true if a node is an open or close node
 */

exports.isOpenOrClose = node => {
  if (node.type === 'open' || node.type === 'close') {
    return true;
  }
  return node.open === true || node.close === true;
};

/**
 * Reduce an array of text nodes.
 */

exports.reduce = nodes => nodes.reduce((acc, node) => {
  if (node.type === 'text') acc.push(node.value);
  if (node.type === 'range') node.type = 'text';
  return acc;
}, []);

/**
 * Flatten an array
 */

exports.flatten = (...args) => {
  const result = [];
  const flat = arr => {
    for (let i = 0; i < arr.length; i++) {
      let ele = arr[i];
      Array.isArray(ele) ? flat(ele) : ele !== void 0 && result.push(ele);
    }
    return result;
  };
  flat(args);
  return result;
};
}(utils$j));

const utils$i = utils$j;

var stringify$7 = (ast, options = {}) => {
  let stringify = (node, parent = {}) => {
    let invalidBlock = options.escapeInvalid && utils$i.isInvalidBrace(parent);
    let invalidNode = node.invalid === true && options.escapeInvalid === true;
    let output = '';

    if (node.value) {
      if ((invalidBlock || invalidNode) && utils$i.isOpenOrClose(node)) {
        return '\\' + node.value;
      }
      return node.value;
    }

    if (node.value) {
      return node.value;
    }

    if (node.nodes) {
      for (let child of node.nodes) {
        output += stringify(child);
      }
    }
    return output;
  };

  return stringify(ast);
};

/*!
 * is-number <https://github.com/jonschlinkert/is-number>
 *
 * Copyright (c) 2014-present, Jon Schlinkert.
 * Released under the MIT License.
 */

var isNumber$2 = function(num) {
  if (typeof num === 'number') {
    return num - num === 0;
  }
  if (typeof num === 'string' && num.trim() !== '') {
    return Number.isFinite ? Number.isFinite(+num) : isFinite(+num);
  }
  return false;
};

/*!
 * to-regex-range <https://github.com/micromatch/to-regex-range>
 *
 * Copyright (c) 2015-present, Jon Schlinkert.
 * Released under the MIT License.
 */

const isNumber$1 = isNumber$2;

const toRegexRange$1 = (min, max, options) => {
  if (isNumber$1(min) === false) {
    throw new TypeError('toRegexRange: expected the first argument to be a number');
  }

  if (max === void 0 || min === max) {
    return String(min);
  }

  if (isNumber$1(max) === false) {
    throw new TypeError('toRegexRange: expected the second argument to be a number.');
  }

  let opts = { relaxZeros: true, ...options };
  if (typeof opts.strictZeros === 'boolean') {
    opts.relaxZeros = opts.strictZeros === false;
  }

  let relax = String(opts.relaxZeros);
  let shorthand = String(opts.shorthand);
  let capture = String(opts.capture);
  let wrap = String(opts.wrap);
  let cacheKey = min + ':' + max + '=' + relax + shorthand + capture + wrap;

  if (toRegexRange$1.cache.hasOwnProperty(cacheKey)) {
    return toRegexRange$1.cache[cacheKey].result;
  }

  let a = Math.min(min, max);
  let b = Math.max(min, max);

  if (Math.abs(a - b) === 1) {
    let result = min + '|' + max;
    if (opts.capture) {
      return `(${result})`;
    }
    if (opts.wrap === false) {
      return result;
    }
    return `(?:${result})`;
  }

  let isPadded = hasPadding(min) || hasPadding(max);
  let state = { min, max, a, b };
  let positives = [];
  let negatives = [];

  if (isPadded) {
    state.isPadded = isPadded;
    state.maxLen = String(state.max).length;
  }

  if (a < 0) {
    let newMin = b < 0 ? Math.abs(b) : 1;
    negatives = splitToPatterns(newMin, Math.abs(a), state, opts);
    a = state.a = 0;
  }

  if (b >= 0) {
    positives = splitToPatterns(a, b, state, opts);
  }

  state.negatives = negatives;
  state.positives = positives;
  state.result = collatePatterns(negatives, positives);

  if (opts.capture === true) {
    state.result = `(${state.result})`;
  } else if (opts.wrap !== false && (positives.length + negatives.length) > 1) {
    state.result = `(?:${state.result})`;
  }

  toRegexRange$1.cache[cacheKey] = state;
  return state.result;
};

function collatePatterns(neg, pos, options) {
  let onlyNegative = filterPatterns(neg, pos, '-', false) || [];
  let onlyPositive = filterPatterns(pos, neg, '', false) || [];
  let intersected = filterPatterns(neg, pos, '-?', true) || [];
  let subpatterns = onlyNegative.concat(intersected).concat(onlyPositive);
  return subpatterns.join('|');
}

function splitToRanges(min, max) {
  let nines = 1;
  let zeros = 1;

  let stop = countNines(min, nines);
  let stops = new Set([max]);

  while (min <= stop && stop <= max) {
    stops.add(stop);
    nines += 1;
    stop = countNines(min, nines);
  }

  stop = countZeros(max + 1, zeros) - 1;

  while (min < stop && stop <= max) {
    stops.add(stop);
    zeros += 1;
    stop = countZeros(max + 1, zeros) - 1;
  }

  stops = [...stops];
  stops.sort(compare);
  return stops;
}

/**
 * Convert a range to a regex pattern
 * @param {Number} `start`
 * @param {Number} `stop`
 * @return {String}
 */

function rangeToPattern(start, stop, options) {
  if (start === stop) {
    return { pattern: start, count: [], digits: 0 };
  }

  let zipped = zip(start, stop);
  let digits = zipped.length;
  let pattern = '';
  let count = 0;

  for (let i = 0; i < digits; i++) {
    let [startDigit, stopDigit] = zipped[i];

    if (startDigit === stopDigit) {
      pattern += startDigit;

    } else if (startDigit !== '0' || stopDigit !== '9') {
      pattern += toCharacterClass(startDigit, stopDigit);

    } else {
      count++;
    }
  }

  if (count) {
    pattern += options.shorthand === true ? '\\d' : '[0-9]';
  }

  return { pattern, count: [count], digits };
}

function splitToPatterns(min, max, tok, options) {
  let ranges = splitToRanges(min, max);
  let tokens = [];
  let start = min;
  let prev;

  for (let i = 0; i < ranges.length; i++) {
    let max = ranges[i];
    let obj = rangeToPattern(String(start), String(max), options);
    let zeros = '';

    if (!tok.isPadded && prev && prev.pattern === obj.pattern) {
      if (prev.count.length > 1) {
        prev.count.pop();
      }

      prev.count.push(obj.count[0]);
      prev.string = prev.pattern + toQuantifier(prev.count);
      start = max + 1;
      continue;
    }

    if (tok.isPadded) {
      zeros = padZeros(max, tok, options);
    }

    obj.string = zeros + obj.pattern + toQuantifier(obj.count);
    tokens.push(obj);
    start = max + 1;
    prev = obj;
  }

  return tokens;
}

function filterPatterns(arr, comparison, prefix, intersection, options) {
  let result = [];

  for (let ele of arr) {
    let { string } = ele;

    // only push if _both_ are negative...
    if (!intersection && !contains(comparison, 'string', string)) {
      result.push(prefix + string);
    }

    // or _both_ are positive
    if (intersection && contains(comparison, 'string', string)) {
      result.push(prefix + string);
    }
  }
  return result;
}

/**
 * Zip strings
 */

function zip(a, b) {
  let arr = [];
  for (let i = 0; i < a.length; i++) arr.push([a[i], b[i]]);
  return arr;
}

function compare(a, b) {
  return a > b ? 1 : b > a ? -1 : 0;
}

function contains(arr, key, val) {
  return arr.some(ele => ele[key] === val);
}

function countNines(min, len) {
  return Number(String(min).slice(0, -len) + '9'.repeat(len));
}

function countZeros(integer, zeros) {
  return integer - (integer % Math.pow(10, zeros));
}

function toQuantifier(digits) {
  let [start = 0, stop = ''] = digits;
  if (stop || start > 1) {
    return `{${start + (stop ? ',' + stop : '')}}`;
  }
  return '';
}

function toCharacterClass(a, b, options) {
  return `[${a}${(b - a === 1) ? '' : '-'}${b}]`;
}

function hasPadding(str) {
  return /^-?(0+)\d/.test(str);
}

function padZeros(value, tok, options) {
  if (!tok.isPadded) {
    return value;
  }

  let diff = Math.abs(tok.maxLen - String(value).length);
  let relax = options.relaxZeros !== false;

  switch (diff) {
    case 0:
      return '';
    case 1:
      return relax ? '0?' : '0';
    case 2:
      return relax ? '0{0,2}' : '00';
    default: {
      return relax ? `0{0,${diff}}` : `0{${diff}}`;
    }
  }
}

/**
 * Cache
 */

toRegexRange$1.cache = {};
toRegexRange$1.clearCache = () => (toRegexRange$1.cache = {});

/**
 * Expose `toRegexRange`
 */

var toRegexRange_1 = toRegexRange$1;

/*!
 * fill-range <https://github.com/jonschlinkert/fill-range>
 *
 * Copyright (c) 2014-present, Jon Schlinkert.
 * Licensed under the MIT License.
 */

const util$8 = require$$0__default$2;
const toRegexRange = toRegexRange_1;

const isObject$1 = val => val !== null && typeof val === 'object' && !Array.isArray(val);

const transform = toNumber => {
  return value => toNumber === true ? Number(value) : String(value);
};

const isValidValue = value => {
  return typeof value === 'number' || (typeof value === 'string' && value !== '');
};

const isNumber = num => Number.isInteger(+num);

const zeros = input => {
  let value = `${input}`;
  let index = -1;
  if (value[0] === '-') value = value.slice(1);
  if (value === '0') return false;
  while (value[++index] === '0');
  return index > 0;
};

const stringify$6 = (start, end, options) => {
  if (typeof start === 'string' || typeof end === 'string') {
    return true;
  }
  return options.stringify === true;
};

const pad = (input, maxLength, toNumber) => {
  if (maxLength > 0) {
    let dash = input[0] === '-' ? '-' : '';
    if (dash) input = input.slice(1);
    input = (dash + input.padStart(dash ? maxLength - 1 : maxLength, '0'));
  }
  if (toNumber === false) {
    return String(input);
  }
  return input;
};

const toMaxLen = (input, maxLength) => {
  let negative = input[0] === '-' ? '-' : '';
  if (negative) {
    input = input.slice(1);
    maxLength--;
  }
  while (input.length < maxLength) input = '0' + input;
  return negative ? ('-' + input) : input;
};

const toSequence = (parts, options) => {
  parts.negatives.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);
  parts.positives.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);

  let prefix = options.capture ? '' : '?:';
  let positives = '';
  let negatives = '';
  let result;

  if (parts.positives.length) {
    positives = parts.positives.join('|');
  }

  if (parts.negatives.length) {
    negatives = `-(${prefix}${parts.negatives.join('|')})`;
  }

  if (positives && negatives) {
    result = `${positives}|${negatives}`;
  } else {
    result = positives || negatives;
  }

  if (options.wrap) {
    return `(${prefix}${result})`;
  }

  return result;
};

const toRange = (a, b, isNumbers, options) => {
  if (isNumbers) {
    return toRegexRange(a, b, { wrap: false, ...options });
  }

  let start = String.fromCharCode(a);
  if (a === b) return start;

  let stop = String.fromCharCode(b);
  return `[${start}-${stop}]`;
};

const toRegex = (start, end, options) => {
  if (Array.isArray(start)) {
    let wrap = options.wrap === true;
    let prefix = options.capture ? '' : '?:';
    return wrap ? `(${prefix}${start.join('|')})` : start.join('|');
  }
  return toRegexRange(start, end, options);
};

const rangeError = (...args) => {
  return new RangeError('Invalid range arguments: ' + util$8.inspect(...args));
};

const invalidRange = (start, end, options) => {
  if (options.strictRanges === true) throw rangeError([start, end]);
  return [];
};

const invalidStep = (step, options) => {
  if (options.strictRanges === true) {
    throw new TypeError(`Expected step "${step}" to be a number`);
  }
  return [];
};

const fillNumbers = (start, end, step = 1, options = {}) => {
  let a = Number(start);
  let b = Number(end);

  if (!Number.isInteger(a) || !Number.isInteger(b)) {
    if (options.strictRanges === true) throw rangeError([start, end]);
    return [];
  }

  // fix negative zero
  if (a === 0) a = 0;
  if (b === 0) b = 0;

  let descending = a > b;
  let startString = String(start);
  let endString = String(end);
  let stepString = String(step);
  step = Math.max(Math.abs(step), 1);

  let padded = zeros(startString) || zeros(endString) || zeros(stepString);
  let maxLen = padded ? Math.max(startString.length, endString.length, stepString.length) : 0;
  let toNumber = padded === false && stringify$6(start, end, options) === false;
  let format = options.transform || transform(toNumber);

  if (options.toRegex && step === 1) {
    return toRange(toMaxLen(start, maxLen), toMaxLen(end, maxLen), true, options);
  }

  let parts = { negatives: [], positives: [] };
  let push = num => parts[num < 0 ? 'negatives' : 'positives'].push(Math.abs(num));
  let range = [];
  let index = 0;

  while (descending ? a >= b : a <= b) {
    if (options.toRegex === true && step > 1) {
      push(a);
    } else {
      range.push(pad(format(a, index), maxLen, toNumber));
    }
    a = descending ? a - step : a + step;
    index++;
  }

  if (options.toRegex === true) {
    return step > 1
      ? toSequence(parts, options)
      : toRegex(range, null, { wrap: false, ...options });
  }

  return range;
};

const fillLetters = (start, end, step = 1, options = {}) => {
  if ((!isNumber(start) && start.length > 1) || (!isNumber(end) && end.length > 1)) {
    return invalidRange(start, end, options);
  }


  let format = options.transform || (val => String.fromCharCode(val));
  let a = `${start}`.charCodeAt(0);
  let b = `${end}`.charCodeAt(0);

  let descending = a > b;
  let min = Math.min(a, b);
  let max = Math.max(a, b);

  if (options.toRegex && step === 1) {
    return toRange(min, max, false, options);
  }

  let range = [];
  let index = 0;

  while (descending ? a >= b : a <= b) {
    range.push(format(a, index));
    a = descending ? a - step : a + step;
    index++;
  }

  if (options.toRegex === true) {
    return toRegex(range, null, { wrap: false, options });
  }

  return range;
};

const fill$2 = (start, end, step, options = {}) => {
  if (end == null && isValidValue(start)) {
    return [start];
  }

  if (!isValidValue(start) || !isValidValue(end)) {
    return invalidRange(start, end, options);
  }

  if (typeof step === 'function') {
    return fill$2(start, end, 1, { transform: step });
  }

  if (isObject$1(step)) {
    return fill$2(start, end, 0, step);
  }

  let opts = { ...options };
  if (opts.capture === true) opts.wrap = true;
  step = step || opts.step || 1;

  if (!isNumber(step)) {
    if (step != null && !isObject$1(step)) return invalidStep(step, opts);
    return fill$2(start, end, 1, step);
  }

  if (isNumber(start) && isNumber(end)) {
    return fillNumbers(start, end, step, opts);
  }

  return fillLetters(start, end, Math.max(Math.abs(step), 1), opts);
};

var fillRange = fill$2;

const fill$1 = fillRange;
const utils$h = utils$j;

const compile$1 = (ast, options = {}) => {
  let walk = (node, parent = {}) => {
    let invalidBlock = utils$h.isInvalidBrace(parent);
    let invalidNode = node.invalid === true && options.escapeInvalid === true;
    let invalid = invalidBlock === true || invalidNode === true;
    let prefix = options.escapeInvalid === true ? '\\' : '';
    let output = '';

    if (node.isOpen === true) {
      return prefix + node.value;
    }
    if (node.isClose === true) {
      return prefix + node.value;
    }

    if (node.type === 'open') {
      return invalid ? (prefix + node.value) : '(';
    }

    if (node.type === 'close') {
      return invalid ? (prefix + node.value) : ')';
    }

    if (node.type === 'comma') {
      return node.prev.type === 'comma' ? '' : (invalid ? node.value : '|');
    }

    if (node.value) {
      return node.value;
    }

    if (node.nodes && node.ranges > 0) {
      let args = utils$h.reduce(node.nodes);
      let range = fill$1(...args, { ...options, wrap: false, toRegex: true });

      if (range.length !== 0) {
        return args.length > 1 && range.length > 1 ? `(${range})` : range;
      }
    }

    if (node.nodes) {
      for (let child of node.nodes) {
        output += walk(child, node);
      }
    }
    return output;
  };

  return walk(ast);
};

var compile_1 = compile$1;

const fill = fillRange;
const stringify$5 = stringify$7;
const utils$g = utils$j;

const append$1 = (queue = '', stash = '', enclose = false) => {
  let result = [];

  queue = [].concat(queue);
  stash = [].concat(stash);

  if (!stash.length) return queue;
  if (!queue.length) {
    return enclose ? utils$g.flatten(stash).map(ele => `{${ele}}`) : stash;
  }

  for (let item of queue) {
    if (Array.isArray(item)) {
      for (let value of item) {
        result.push(append$1(value, stash, enclose));
      }
    } else {
      for (let ele of stash) {
        if (enclose === true && typeof ele === 'string') ele = `{${ele}}`;
        result.push(Array.isArray(ele) ? append$1(item, ele, enclose) : (item + ele));
      }
    }
  }
  return utils$g.flatten(result);
};

const expand$3 = (ast, options = {}) => {
  let rangeLimit = options.rangeLimit === void 0 ? 1000 : options.rangeLimit;

  let walk = (node, parent = {}) => {
    node.queue = [];

    let p = parent;
    let q = parent.queue;

    while (p.type !== 'brace' && p.type !== 'root' && p.parent) {
      p = p.parent;
      q = p.queue;
    }

    if (node.invalid || node.dollar) {
      q.push(append$1(q.pop(), stringify$5(node, options)));
      return;
    }

    if (node.type === 'brace' && node.invalid !== true && node.nodes.length === 2) {
      q.push(append$1(q.pop(), ['{}']));
      return;
    }

    if (node.nodes && node.ranges > 0) {
      let args = utils$g.reduce(node.nodes);

      if (utils$g.exceedsLimit(...args, options.step, rangeLimit)) {
        throw new RangeError('expanded array length exceeds range limit. Use options.rangeLimit to increase or disable the limit.');
      }

      let range = fill(...args, options);
      if (range.length === 0) {
        range = stringify$5(node, options);
      }

      q.push(append$1(q.pop(), range));
      node.nodes = [];
      return;
    }

    let enclose = utils$g.encloseBrace(node);
    let queue = node.queue;
    let block = node;

    while (block.type !== 'brace' && block.type !== 'root' && block.parent) {
      block = block.parent;
      queue = block.queue;
    }

    for (let i = 0; i < node.nodes.length; i++) {
      let child = node.nodes[i];

      if (child.type === 'comma' && node.type === 'brace') {
        if (i === 1) queue.push('');
        queue.push('');
        continue;
      }

      if (child.type === 'close') {
        q.push(append$1(q.pop(), queue, enclose));
        continue;
      }

      if (child.value && child.type !== 'open') {
        queue.push(append$1(queue.pop(), child.value));
        continue;
      }

      if (child.nodes) {
        walk(child, node);
      }
    }

    return queue;
  };

  return utils$g.flatten(walk(ast));
};

var expand_1 = expand$3;

var constants$6 = {
  MAX_LENGTH: 1024 * 64,

  // Digits
  CHAR_0: '0', /* 0 */
  CHAR_9: '9', /* 9 */

  // Alphabet chars.
  CHAR_UPPERCASE_A: 'A', /* A */
  CHAR_LOWERCASE_A: 'a', /* a */
  CHAR_UPPERCASE_Z: 'Z', /* Z */
  CHAR_LOWERCASE_Z: 'z', /* z */

  CHAR_LEFT_PARENTHESES: '(', /* ( */
  CHAR_RIGHT_PARENTHESES: ')', /* ) */

  CHAR_ASTERISK: '*', /* * */

  // Non-alphabetic chars.
  CHAR_AMPERSAND: '&', /* & */
  CHAR_AT: '@', /* @ */
  CHAR_BACKSLASH: '\\', /* \ */
  CHAR_BACKTICK: '`', /* ` */
  CHAR_CARRIAGE_RETURN: '\r', /* \r */
  CHAR_CIRCUMFLEX_ACCENT: '^', /* ^ */
  CHAR_COLON: ':', /* : */
  CHAR_COMMA: ',', /* , */
  CHAR_DOLLAR: '$', /* . */
  CHAR_DOT: '.', /* . */
  CHAR_DOUBLE_QUOTE: '"', /* " */
  CHAR_EQUAL: '=', /* = */
  CHAR_EXCLAMATION_MARK: '!', /* ! */
  CHAR_FORM_FEED: '\f', /* \f */
  CHAR_FORWARD_SLASH: '/', /* / */
  CHAR_HASH: '#', /* # */
  CHAR_HYPHEN_MINUS: '-', /* - */
  CHAR_LEFT_ANGLE_BRACKET: '<', /* < */
  CHAR_LEFT_CURLY_BRACE: '{', /* { */
  CHAR_LEFT_SQUARE_BRACKET: '[', /* [ */
  CHAR_LINE_FEED: '\n', /* \n */
  CHAR_NO_BREAK_SPACE: '\u00A0', /* \u00A0 */
  CHAR_PERCENT: '%', /* % */
  CHAR_PLUS: '+', /* + */
  CHAR_QUESTION_MARK: '?', /* ? */
  CHAR_RIGHT_ANGLE_BRACKET: '>', /* > */
  CHAR_RIGHT_CURLY_BRACE: '}', /* } */
  CHAR_RIGHT_SQUARE_BRACKET: ']', /* ] */
  CHAR_SEMICOLON: ';', /* ; */
  CHAR_SINGLE_QUOTE: '\'', /* ' */
  CHAR_SPACE: ' ', /*   */
  CHAR_TAB: '\t', /* \t */
  CHAR_UNDERSCORE: '_', /* _ */
  CHAR_VERTICAL_LINE: '|', /* | */
  CHAR_ZERO_WIDTH_NOBREAK_SPACE: '\uFEFF' /* \uFEFF */
};

const stringify$4 = stringify$7;

/**
 * Constants
 */

const {
  MAX_LENGTH: MAX_LENGTH$1,
  CHAR_BACKSLASH, /* \ */
  CHAR_BACKTICK, /* ` */
  CHAR_COMMA: CHAR_COMMA$1, /* , */
  CHAR_DOT: CHAR_DOT$1, /* . */
  CHAR_LEFT_PARENTHESES: CHAR_LEFT_PARENTHESES$1, /* ( */
  CHAR_RIGHT_PARENTHESES: CHAR_RIGHT_PARENTHESES$1, /* ) */
  CHAR_LEFT_CURLY_BRACE: CHAR_LEFT_CURLY_BRACE$1, /* { */
  CHAR_RIGHT_CURLY_BRACE: CHAR_RIGHT_CURLY_BRACE$1, /* } */
  CHAR_LEFT_SQUARE_BRACKET: CHAR_LEFT_SQUARE_BRACKET$1, /* [ */
  CHAR_RIGHT_SQUARE_BRACKET: CHAR_RIGHT_SQUARE_BRACKET$1, /* ] */
  CHAR_DOUBLE_QUOTE, /* " */
  CHAR_SINGLE_QUOTE, /* ' */
  CHAR_NO_BREAK_SPACE,
  CHAR_ZERO_WIDTH_NOBREAK_SPACE
} = constants$6;

/**
 * parse
 */

const parse$l = (input, options = {}) => {
  if (typeof input !== 'string') {
    throw new TypeError('Expected a string');
  }

  let opts = options || {};
  let max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH$1, opts.maxLength) : MAX_LENGTH$1;
  if (input.length > max) {
    throw new SyntaxError(`Input length (${input.length}), exceeds max characters (${max})`);
  }

  let ast = { type: 'root', input, nodes: [] };
  let stack = [ast];
  let block = ast;
  let prev = ast;
  let brackets = 0;
  let length = input.length;
  let index = 0;
  let depth = 0;
  let value;

  /**
   * Helpers
   */

  const advance = () => input[index++];
  const push = node => {
    if (node.type === 'text' && prev.type === 'dot') {
      prev.type = 'text';
    }

    if (prev && prev.type === 'text' && node.type === 'text') {
      prev.value += node.value;
      return;
    }

    block.nodes.push(node);
    node.parent = block;
    node.prev = prev;
    prev = node;
    return node;
  };

  push({ type: 'bos' });

  while (index < length) {
    block = stack[stack.length - 1];
    value = advance();

    /**
     * Invalid chars
     */

    if (value === CHAR_ZERO_WIDTH_NOBREAK_SPACE || value === CHAR_NO_BREAK_SPACE) {
      continue;
    }

    /**
     * Escaped chars
     */

    if (value === CHAR_BACKSLASH) {
      push({ type: 'text', value: (options.keepEscaping ? value : '') + advance() });
      continue;
    }

    /**
     * Right square bracket (literal): ']'
     */

    if (value === CHAR_RIGHT_SQUARE_BRACKET$1) {
      push({ type: 'text', value: '\\' + value });
      continue;
    }

    /**
     * Left square bracket: '['
     */

    if (value === CHAR_LEFT_SQUARE_BRACKET$1) {
      brackets++;
      let next;

      while (index < length && (next = advance())) {
        value += next;

        if (next === CHAR_LEFT_SQUARE_BRACKET$1) {
          brackets++;
          continue;
        }

        if (next === CHAR_BACKSLASH) {
          value += advance();
          continue;
        }

        if (next === CHAR_RIGHT_SQUARE_BRACKET$1) {
          brackets--;

          if (brackets === 0) {
            break;
          }
        }
      }

      push({ type: 'text', value });
      continue;
    }

    /**
     * Parentheses
     */

    if (value === CHAR_LEFT_PARENTHESES$1) {
      block = push({ type: 'paren', nodes: [] });
      stack.push(block);
      push({ type: 'text', value });
      continue;
    }

    if (value === CHAR_RIGHT_PARENTHESES$1) {
      if (block.type !== 'paren') {
        push({ type: 'text', value });
        continue;
      }
      block = stack.pop();
      push({ type: 'text', value });
      block = stack[stack.length - 1];
      continue;
    }

    /**
     * Quotes: '|"|`
     */

    if (value === CHAR_DOUBLE_QUOTE || value === CHAR_SINGLE_QUOTE || value === CHAR_BACKTICK) {
      let open = value;
      let next;

      if (options.keepQuotes !== true) {
        value = '';
      }

      while (index < length && (next = advance())) {
        if (next === CHAR_BACKSLASH) {
          value += next + advance();
          continue;
        }

        if (next === open) {
          if (options.keepQuotes === true) value += next;
          break;
        }

        value += next;
      }

      push({ type: 'text', value });
      continue;
    }

    /**
     * Left curly brace: '{'
     */

    if (value === CHAR_LEFT_CURLY_BRACE$1) {
      depth++;

      let dollar = prev.value && prev.value.slice(-1) === '$' || block.dollar === true;
      let brace = {
        type: 'brace',
        open: true,
        close: false,
        dollar,
        depth,
        commas: 0,
        ranges: 0,
        nodes: []
      };

      block = push(brace);
      stack.push(block);
      push({ type: 'open', value });
      continue;
    }

    /**
     * Right curly brace: '}'
     */

    if (value === CHAR_RIGHT_CURLY_BRACE$1) {
      if (block.type !== 'brace') {
        push({ type: 'text', value });
        continue;
      }

      let type = 'close';
      block = stack.pop();
      block.close = true;

      push({ type, value });
      depth--;

      block = stack[stack.length - 1];
      continue;
    }

    /**
     * Comma: ','
     */

    if (value === CHAR_COMMA$1 && depth > 0) {
      if (block.ranges > 0) {
        block.ranges = 0;
        let open = block.nodes.shift();
        block.nodes = [open, { type: 'text', value: stringify$4(block) }];
      }

      push({ type: 'comma', value });
      block.commas++;
      continue;
    }

    /**
     * Dot: '.'
     */

    if (value === CHAR_DOT$1 && depth > 0 && block.commas === 0) {
      let siblings = block.nodes;

      if (depth === 0 || siblings.length === 0) {
        push({ type: 'text', value });
        continue;
      }

      if (prev.type === 'dot') {
        block.range = [];
        prev.value += value;
        prev.type = 'range';

        if (block.nodes.length !== 3 && block.nodes.length !== 5) {
          block.invalid = true;
          block.ranges = 0;
          prev.type = 'text';
          continue;
        }

        block.ranges++;
        block.args = [];
        continue;
      }

      if (prev.type === 'range') {
        siblings.pop();

        let before = siblings[siblings.length - 1];
        before.value += prev.value + value;
        prev = before;
        block.ranges--;
        continue;
      }

      push({ type: 'dot', value });
      continue;
    }

    /**
     * Text
     */

    push({ type: 'text', value });
  }

  // Mark imbalanced braces and brackets as invalid
  do {
    block = stack.pop();

    if (block.type !== 'root') {
      block.nodes.forEach(node => {
        if (!node.nodes) {
          if (node.type === 'open') node.isOpen = true;
          if (node.type === 'close') node.isClose = true;
          if (!node.nodes) node.type = 'text';
          node.invalid = true;
        }
      });

      // get the location of the block on parent.nodes (block's siblings)
      let parent = stack[stack.length - 1];
      let index = parent.nodes.indexOf(block);
      // replace the (invalid) block with it's nodes
      parent.nodes.splice(index, 1, ...block.nodes);
    }
  } while (stack.length > 0);

  push({ type: 'eos' });
  return ast;
};

var parse_1$2 = parse$l;

const stringify$3 = stringify$7;
const compile = compile_1;
const expand$2 = expand_1;
const parse$k = parse_1$2;

/**
 * Expand the given pattern or create a regex-compatible string.
 *
 * ```js
 * const braces = require('braces');
 * console.log(braces('{a,b,c}', { compile: true })); //=> ['(a|b|c)']
 * console.log(braces('{a,b,c}')); //=> ['a', 'b', 'c']
 * ```
 * @param {String} `str`
 * @param {Object} `options`
 * @return {String}
 * @api public
 */

const braces$2 = (input, options = {}) => {
  let output = [];

  if (Array.isArray(input)) {
    for (let pattern of input) {
      let result = braces$2.create(pattern, options);
      if (Array.isArray(result)) {
        output.push(...result);
      } else {
        output.push(result);
      }
    }
  } else {
    output = [].concat(braces$2.create(input, options));
  }

  if (options && options.expand === true && options.nodupes === true) {
    output = [...new Set(output)];
  }
  return output;
};

/**
 * Parse the given `str` with the given `options`.
 *
 * ```js
 * // braces.parse(pattern, [, options]);
 * const ast = braces.parse('a/{b,c}/d');
 * console.log(ast);
 * ```
 * @param {String} pattern Brace pattern to parse
 * @param {Object} options
 * @return {Object} Returns an AST
 * @api public
 */

braces$2.parse = (input, options = {}) => parse$k(input, options);

/**
 * Creates a braces string from an AST, or an AST node.
 *
 * ```js
 * const braces = require('braces');
 * let ast = braces.parse('foo/{a,b}/bar');
 * console.log(stringify(ast.nodes[2])); //=> '{a,b}'
 * ```
 * @param {String} `input` Brace pattern or AST.
 * @param {Object} `options`
 * @return {Array} Returns an array of expanded values.
 * @api public
 */

braces$2.stringify = (input, options = {}) => {
  if (typeof input === 'string') {
    return stringify$3(braces$2.parse(input, options), options);
  }
  return stringify$3(input, options);
};

/**
 * Compiles a brace pattern into a regex-compatible, optimized string.
 * This method is called by the main [braces](#braces) function by default.
 *
 * ```js
 * const braces = require('braces');
 * console.log(braces.compile('a/{b,c}/d'));
 * //=> ['a/(b|c)/d']
 * ```
 * @param {String} `input` Brace pattern or AST.
 * @param {Object} `options`
 * @return {Array} Returns an array of expanded values.
 * @api public
 */

braces$2.compile = (input, options = {}) => {
  if (typeof input === 'string') {
    input = braces$2.parse(input, options);
  }
  return compile(input, options);
};

/**
 * Expands a brace pattern into an array. This method is called by the
 * main [braces](#braces) function when `options.expand` is true. Before
 * using this method it's recommended that you read the [performance notes](#performance))
 * and advantages of using [.compile](#compile) instead.
 *
 * ```js
 * const braces = require('braces');
 * console.log(braces.expand('a/{b,c}/d'));
 * //=> ['a/b/d', 'a/c/d'];
 * ```
 * @param {String} `pattern` Brace pattern
 * @param {Object} `options`
 * @return {Array} Returns an array of expanded values.
 * @api public
 */

braces$2.expand = (input, options = {}) => {
  if (typeof input === 'string') {
    input = braces$2.parse(input, options);
  }

  let result = expand$2(input, options);

  // filter out empty strings if specified
  if (options.noempty === true) {
    result = result.filter(Boolean);
  }

  // filter out duplicates if specified
  if (options.nodupes === true) {
    result = [...new Set(result)];
  }

  return result;
};

/**
 * Processes a brace pattern and returns either an expanded array
 * (if `options.expand` is true), a highly optimized regex-compatible string.
 * This method is called by the main [braces](#braces) function.
 *
 * ```js
 * const braces = require('braces');
 * console.log(braces.create('user-{200..300}/project-{a,b,c}-{1..10}'))
 * //=> 'user-(20[0-9]|2[1-9][0-9]|300)/project-(a|b|c)-([1-9]|10)'
 * ```
 * @param {String} `pattern` Brace pattern
 * @param {Object} `options`
 * @return {Array} Returns an array of expanded values.
 * @api public
 */

braces$2.create = (input, options = {}) => {
  if (input === '' || input.length < 3) {
    return [input];
  }

 return options.expand !== true
    ? braces$2.compile(input, options)
    : braces$2.expand(input, options);
};

/**
 * Expose "braces"
 */

var braces_1 = braces$2;

var utils$f = {};

const path$q = path__default;
const WIN_SLASH = '\\\\/';
const WIN_NO_SLASH = `[^${WIN_SLASH}]`;

/**
 * Posix glob regex
 */

const DOT_LITERAL = '\\.';
const PLUS_LITERAL = '\\+';
const QMARK_LITERAL = '\\?';
const SLASH_LITERAL = '\\/';
const ONE_CHAR = '(?=.)';
const QMARK = '[^/]';
const END_ANCHOR = `(?:${SLASH_LITERAL}|$)`;
const START_ANCHOR = `(?:^|${SLASH_LITERAL})`;
const DOTS_SLASH = `${DOT_LITERAL}{1,2}${END_ANCHOR}`;
const NO_DOT = `(?!${DOT_LITERAL})`;
const NO_DOTS = `(?!${START_ANCHOR}${DOTS_SLASH})`;
const NO_DOT_SLASH = `(?!${DOT_LITERAL}{0,1}${END_ANCHOR})`;
const NO_DOTS_SLASH = `(?!${DOTS_SLASH})`;
const QMARK_NO_DOT = `[^.${SLASH_LITERAL}]`;
const STAR$1 = `${QMARK}*?`;

const POSIX_CHARS = {
  DOT_LITERAL,
  PLUS_LITERAL,
  QMARK_LITERAL,
  SLASH_LITERAL,
  ONE_CHAR,
  QMARK,
  END_ANCHOR,
  DOTS_SLASH,
  NO_DOT,
  NO_DOTS,
  NO_DOT_SLASH,
  NO_DOTS_SLASH,
  QMARK_NO_DOT,
  STAR: STAR$1,
  START_ANCHOR
};

/**
 * Windows glob regex
 */

const WINDOWS_CHARS = {
  ...POSIX_CHARS,

  SLASH_LITERAL: `[${WIN_SLASH}]`,
  QMARK: WIN_NO_SLASH,
  STAR: `${WIN_NO_SLASH}*?`,
  DOTS_SLASH: `${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$)`,
  NO_DOT: `(?!${DOT_LITERAL})`,
  NO_DOTS: `(?!(?:^|[${WIN_SLASH}])${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$))`,
  NO_DOT_SLASH: `(?!${DOT_LITERAL}{0,1}(?:[${WIN_SLASH}]|$))`,
  NO_DOTS_SLASH: `(?!${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$))`,
  QMARK_NO_DOT: `[^.${WIN_SLASH}]`,
  START_ANCHOR: `(?:^|[${WIN_SLASH}])`,
  END_ANCHOR: `(?:[${WIN_SLASH}]|$)`
};

/**
 * POSIX Bracket Regex
 */

const POSIX_REGEX_SOURCE$1 = {
  alnum: 'a-zA-Z0-9',
  alpha: 'a-zA-Z',
  ascii: '\\x00-\\x7F',
  blank: ' \\t',
  cntrl: '\\x00-\\x1F\\x7F',
  digit: '0-9',
  graph: '\\x21-\\x7E',
  lower: 'a-z',
  print: '\\x20-\\x7E ',
  punct: '\\-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~',
  space: ' \\t\\r\\n\\v\\f',
  upper: 'A-Z',
  word: 'A-Za-z0-9_',
  xdigit: 'A-Fa-f0-9'
};

var constants$5 = {
  MAX_LENGTH: 1024 * 64,
  POSIX_REGEX_SOURCE: POSIX_REGEX_SOURCE$1,

  // regular expressions
  REGEX_BACKSLASH: /\\(?![*+?^${}(|)[\]])/g,
  REGEX_NON_SPECIAL_CHARS: /^[^@![\].,$*+?^{}()|\\/]+/,
  REGEX_SPECIAL_CHARS: /[-*+?.^${}(|)[\]]/,
  REGEX_SPECIAL_CHARS_BACKREF: /(\\?)((\W)(\3*))/g,
  REGEX_SPECIAL_CHARS_GLOBAL: /([-*+?.^${}(|)[\]])/g,
  REGEX_REMOVE_BACKSLASH: /(?:\[.*?[^\\]\]|\\(?=.))/g,

  // Replace globs with equivalent patterns to reduce parsing time.
  REPLACEMENTS: {
    '***': '*',
    '**/**': '**',
    '**/**/**': '**'
  },

  // Digits
  CHAR_0: 48, /* 0 */
  CHAR_9: 57, /* 9 */

  // Alphabet chars.
  CHAR_UPPERCASE_A: 65, /* A */
  CHAR_LOWERCASE_A: 97, /* a */
  CHAR_UPPERCASE_Z: 90, /* Z */
  CHAR_LOWERCASE_Z: 122, /* z */

  CHAR_LEFT_PARENTHESES: 40, /* ( */
  CHAR_RIGHT_PARENTHESES: 41, /* ) */

  CHAR_ASTERISK: 42, /* * */

  // Non-alphabetic chars.
  CHAR_AMPERSAND: 38, /* & */
  CHAR_AT: 64, /* @ */
  CHAR_BACKWARD_SLASH: 92, /* \ */
  CHAR_CARRIAGE_RETURN: 13, /* \r */
  CHAR_CIRCUMFLEX_ACCENT: 94, /* ^ */
  CHAR_COLON: 58, /* : */
  CHAR_COMMA: 44, /* , */
  CHAR_DOT: 46, /* . */
  CHAR_DOUBLE_QUOTE: 34, /* " */
  CHAR_EQUAL: 61, /* = */
  CHAR_EXCLAMATION_MARK: 33, /* ! */
  CHAR_FORM_FEED: 12, /* \f */
  CHAR_FORWARD_SLASH: 47, /* / */
  CHAR_GRAVE_ACCENT: 96, /* ` */
  CHAR_HASH: 35, /* # */
  CHAR_HYPHEN_MINUS: 45, /* - */
  CHAR_LEFT_ANGLE_BRACKET: 60, /* < */
  CHAR_LEFT_CURLY_BRACE: 123, /* { */
  CHAR_LEFT_SQUARE_BRACKET: 91, /* [ */
  CHAR_LINE_FEED: 10, /* \n */
  CHAR_NO_BREAK_SPACE: 160, /* \u00A0 */
  CHAR_PERCENT: 37, /* % */
  CHAR_PLUS: 43, /* + */
  CHAR_QUESTION_MARK: 63, /* ? */
  CHAR_RIGHT_ANGLE_BRACKET: 62, /* > */
  CHAR_RIGHT_CURLY_BRACE: 125, /* } */
  CHAR_RIGHT_SQUARE_BRACKET: 93, /* ] */
  CHAR_SEMICOLON: 59, /* ; */
  CHAR_SINGLE_QUOTE: 39, /* ' */
  CHAR_SPACE: 32, /*   */
  CHAR_TAB: 9, /* \t */
  CHAR_UNDERSCORE: 95, /* _ */
  CHAR_VERTICAL_LINE: 124, /* | */
  CHAR_ZERO_WIDTH_NOBREAK_SPACE: 65279, /* \uFEFF */

  SEP: path$q.sep,

  /**
   * Create EXTGLOB_CHARS
   */

  extglobChars(chars) {
    return {
      '!': { type: 'negate', open: '(?:(?!(?:', close: `))${chars.STAR})` },
      '?': { type: 'qmark', open: '(?:', close: ')?' },
      '+': { type: 'plus', open: '(?:', close: ')+' },
      '*': { type: 'star', open: '(?:', close: ')*' },
      '@': { type: 'at', open: '(?:', close: ')' }
    };
  },

  /**
   * Create GLOB_CHARS
   */

  globChars(win32) {
    return win32 === true ? WINDOWS_CHARS : POSIX_CHARS;
  }
};

(function (exports) {

const path = path__default;
const win32 = process.platform === 'win32';
const {
  REGEX_BACKSLASH,
  REGEX_REMOVE_BACKSLASH,
  REGEX_SPECIAL_CHARS,
  REGEX_SPECIAL_CHARS_GLOBAL
} = constants$5;

exports.isObject = val => val !== null && typeof val === 'object' && !Array.isArray(val);
exports.hasRegexChars = str => REGEX_SPECIAL_CHARS.test(str);
exports.isRegexChar = str => str.length === 1 && exports.hasRegexChars(str);
exports.escapeRegex = str => str.replace(REGEX_SPECIAL_CHARS_GLOBAL, '\\$1');
exports.toPosixSlashes = str => str.replace(REGEX_BACKSLASH, '/');

exports.removeBackslashes = str => {
  return str.replace(REGEX_REMOVE_BACKSLASH, match => {
    return match === '\\' ? '' : match;
  });
};

exports.supportsLookbehinds = () => {
  const segs = process.version.slice(1).split('.').map(Number);
  if (segs.length === 3 && segs[0] >= 9 || (segs[0] === 8 && segs[1] >= 10)) {
    return true;
  }
  return false;
};

exports.isWindows = options => {
  if (options && typeof options.windows === 'boolean') {
    return options.windows;
  }
  return win32 === true || path.sep === '\\';
};

exports.escapeLast = (input, char, lastIdx) => {
  const idx = input.lastIndexOf(char, lastIdx);
  if (idx === -1) return input;
  if (input[idx - 1] === '\\') return exports.escapeLast(input, char, idx - 1);
  return `${input.slice(0, idx)}\\${input.slice(idx)}`;
};

exports.removePrefix = (input, state = {}) => {
  let output = input;
  if (output.startsWith('./')) {
    output = output.slice(2);
    state.prefix = './';
  }
  return output;
};

exports.wrapOutput = (input, state = {}, options = {}) => {
  const prepend = options.contains ? '' : '^';
  const append = options.contains ? '' : '$';

  let output = `${prepend}(?:${input})${append}`;
  if (state.negated === true) {
    output = `(?:^(?!${output}).*$)`;
  }
  return output;
};
}(utils$f));

const utils$e = utils$f;
const {
  CHAR_ASTERISK,             /* * */
  CHAR_AT,                   /* @ */
  CHAR_BACKWARD_SLASH,       /* \ */
  CHAR_COMMA,                /* , */
  CHAR_DOT,                  /* . */
  CHAR_EXCLAMATION_MARK,     /* ! */
  CHAR_FORWARD_SLASH,        /* / */
  CHAR_LEFT_CURLY_BRACE,     /* { */
  CHAR_LEFT_PARENTHESES,     /* ( */
  CHAR_LEFT_SQUARE_BRACKET,  /* [ */
  CHAR_PLUS,                 /* + */
  CHAR_QUESTION_MARK,        /* ? */
  CHAR_RIGHT_CURLY_BRACE,    /* } */
  CHAR_RIGHT_PARENTHESES,    /* ) */
  CHAR_RIGHT_SQUARE_BRACKET  /* ] */
} = constants$5;

const isPathSeparator = code => {
  return code === CHAR_FORWARD_SLASH || code === CHAR_BACKWARD_SLASH;
};

const depth = token => {
  if (token.isPrefix !== true) {
    token.depth = token.isGlobstar ? Infinity : 1;
  }
};

/**
 * Quickly scans a glob pattern and returns an object with a handful of
 * useful properties, like `isGlob`, `path` (the leading non-glob, if it exists),
 * `glob` (the actual pattern), `negated` (true if the path starts with `!` but not
 * with `!(`) and `negatedExtglob` (true if the path starts with `!(`).
 *
 * ```js
 * const pm = require('picomatch');
 * console.log(pm.scan('foo/bar/*.js'));
 * { isGlob: true, input: 'foo/bar/*.js', base: 'foo/bar', glob: '*.js' }
 * ```
 * @param {String} `str`
 * @param {Object} `options`
 * @return {Object} Returns an object with tokens and regex source string.
 * @api public
 */

const scan$1 = (input, options) => {
  const opts = options || {};

  const length = input.length - 1;
  const scanToEnd = opts.parts === true || opts.scanToEnd === true;
  const slashes = [];
  const tokens = [];
  const parts = [];

  let str = input;
  let index = -1;
  let start = 0;
  let lastIndex = 0;
  let isBrace = false;
  let isBracket = false;
  let isGlob = false;
  let isExtglob = false;
  let isGlobstar = false;
  let braceEscaped = false;
  let backslashes = false;
  let negated = false;
  let negatedExtglob = false;
  let finished = false;
  let braces = 0;
  let prev;
  let code;
  let token = { value: '', depth: 0, isGlob: false };

  const eos = () => index >= length;
  const peek = () => str.charCodeAt(index + 1);
  const advance = () => {
    prev = code;
    return str.charCodeAt(++index);
  };

  while (index < length) {
    code = advance();
    let next;

    if (code === CHAR_BACKWARD_SLASH) {
      backslashes = token.backslashes = true;
      code = advance();

      if (code === CHAR_LEFT_CURLY_BRACE) {
        braceEscaped = true;
      }
      continue;
    }

    if (braceEscaped === true || code === CHAR_LEFT_CURLY_BRACE) {
      braces++;

      while (eos() !== true && (code = advance())) {
        if (code === CHAR_BACKWARD_SLASH) {
          backslashes = token.backslashes = true;
          advance();
          continue;
        }

        if (code === CHAR_LEFT_CURLY_BRACE) {
          braces++;
          continue;
        }

        if (braceEscaped !== true && code === CHAR_DOT && (code = advance()) === CHAR_DOT) {
          isBrace = token.isBrace = true;
          isGlob = token.isGlob = true;
          finished = true;

          if (scanToEnd === true) {
            continue;
          }

          break;
        }

        if (braceEscaped !== true && code === CHAR_COMMA) {
          isBrace = token.isBrace = true;
          isGlob = token.isGlob = true;
          finished = true;

          if (scanToEnd === true) {
            continue;
          }

          break;
        }

        if (code === CHAR_RIGHT_CURLY_BRACE) {
          braces--;

          if (braces === 0) {
            braceEscaped = false;
            isBrace = token.isBrace = true;
            finished = true;
            break;
          }
        }
      }

      if (scanToEnd === true) {
        continue;
      }

      break;
    }

    if (code === CHAR_FORWARD_SLASH) {
      slashes.push(index);
      tokens.push(token);
      token = { value: '', depth: 0, isGlob: false };

      if (finished === true) continue;
      if (prev === CHAR_DOT && index === (start + 1)) {
        start += 2;
        continue;
      }

      lastIndex = index + 1;
      continue;
    }

    if (opts.noext !== true) {
      const isExtglobChar = code === CHAR_PLUS
        || code === CHAR_AT
        || code === CHAR_ASTERISK
        || code === CHAR_QUESTION_MARK
        || code === CHAR_EXCLAMATION_MARK;

      if (isExtglobChar === true && peek() === CHAR_LEFT_PARENTHESES) {
        isGlob = token.isGlob = true;
        isExtglob = token.isExtglob = true;
        finished = true;
        if (code === CHAR_EXCLAMATION_MARK && index === start) {
          negatedExtglob = true;
        }

        if (scanToEnd === true) {
          while (eos() !== true && (code = advance())) {
            if (code === CHAR_BACKWARD_SLASH) {
              backslashes = token.backslashes = true;
              code = advance();
              continue;
            }

            if (code === CHAR_RIGHT_PARENTHESES) {
              isGlob = token.isGlob = true;
              finished = true;
              break;
            }
          }
          continue;
        }
        break;
      }
    }

    if (code === CHAR_ASTERISK) {
      if (prev === CHAR_ASTERISK) isGlobstar = token.isGlobstar = true;
      isGlob = token.isGlob = true;
      finished = true;

      if (scanToEnd === true) {
        continue;
      }
      break;
    }

    if (code === CHAR_QUESTION_MARK) {
      isGlob = token.isGlob = true;
      finished = true;

      if (scanToEnd === true) {
        continue;
      }
      break;
    }

    if (code === CHAR_LEFT_SQUARE_BRACKET) {
      while (eos() !== true && (next = advance())) {
        if (next === CHAR_BACKWARD_SLASH) {
          backslashes = token.backslashes = true;
          advance();
          continue;
        }

        if (next === CHAR_RIGHT_SQUARE_BRACKET) {
          isBracket = token.isBracket = true;
          isGlob = token.isGlob = true;
          finished = true;
          break;
        }
      }

      if (scanToEnd === true) {
        continue;
      }

      break;
    }

    if (opts.nonegate !== true && code === CHAR_EXCLAMATION_MARK && index === start) {
      negated = token.negated = true;
      start++;
      continue;
    }

    if (opts.noparen !== true && code === CHAR_LEFT_PARENTHESES) {
      isGlob = token.isGlob = true;

      if (scanToEnd === true) {
        while (eos() !== true && (code = advance())) {
          if (code === CHAR_LEFT_PARENTHESES) {
            backslashes = token.backslashes = true;
            code = advance();
            continue;
          }

          if (code === CHAR_RIGHT_PARENTHESES) {
            finished = true;
            break;
          }
        }
        continue;
      }
      break;
    }

    if (isGlob === true) {
      finished = true;

      if (scanToEnd === true) {
        continue;
      }

      break;
    }
  }

  if (opts.noext === true) {
    isExtglob = false;
    isGlob = false;
  }

  let base = str;
  let prefix = '';
  let glob = '';

  if (start > 0) {
    prefix = str.slice(0, start);
    str = str.slice(start);
    lastIndex -= start;
  }

  if (base && isGlob === true && lastIndex > 0) {
    base = str.slice(0, lastIndex);
    glob = str.slice(lastIndex);
  } else if (isGlob === true) {
    base = '';
    glob = str;
  } else {
    base = str;
  }

  if (base && base !== '' && base !== '/' && base !== str) {
    if (isPathSeparator(base.charCodeAt(base.length - 1))) {
      base = base.slice(0, -1);
    }
  }

  if (opts.unescape === true) {
    if (glob) glob = utils$e.removeBackslashes(glob);

    if (base && backslashes === true) {
      base = utils$e.removeBackslashes(base);
    }
  }

  const state = {
    prefix,
    input,
    start,
    base,
    glob,
    isBrace,
    isBracket,
    isGlob,
    isExtglob,
    isGlobstar,
    negated,
    negatedExtglob
  };

  if (opts.tokens === true) {
    state.maxDepth = 0;
    if (!isPathSeparator(code)) {
      tokens.push(token);
    }
    state.tokens = tokens;
  }

  if (opts.parts === true || opts.tokens === true) {
    let prevIndex;

    for (let idx = 0; idx < slashes.length; idx++) {
      const n = prevIndex ? prevIndex + 1 : start;
      const i = slashes[idx];
      const value = input.slice(n, i);
      if (opts.tokens) {
        if (idx === 0 && start !== 0) {
          tokens[idx].isPrefix = true;
          tokens[idx].value = prefix;
        } else {
          tokens[idx].value = value;
        }
        depth(tokens[idx]);
        state.maxDepth += tokens[idx].depth;
      }
      if (idx !== 0 || value !== '') {
        parts.push(value);
      }
      prevIndex = i;
    }

    if (prevIndex && prevIndex + 1 < input.length) {
      const value = input.slice(prevIndex + 1);
      parts.push(value);

      if (opts.tokens) {
        tokens[tokens.length - 1].value = value;
        depth(tokens[tokens.length - 1]);
        state.maxDepth += tokens[tokens.length - 1].depth;
      }
    }

    state.slashes = slashes;
    state.parts = parts;
  }

  return state;
};

var scan_1 = scan$1;

const constants$4 = constants$5;
const utils$d = utils$f;

/**
 * Constants
 */

const {
  MAX_LENGTH,
  POSIX_REGEX_SOURCE,
  REGEX_NON_SPECIAL_CHARS,
  REGEX_SPECIAL_CHARS_BACKREF,
  REPLACEMENTS
} = constants$4;

/**
 * Helpers
 */

const expandRange = (args, options) => {
  if (typeof options.expandRange === 'function') {
    return options.expandRange(...args, options);
  }

  args.sort();
  const value = `[${args.join('-')}]`;

  return value;
};

/**
 * Create the message for a syntax error
 */

const syntaxError = (type, char) => {
  return `Missing ${type}: "${char}" - use "\\\\${char}" to match literal characters`;
};

/**
 * Parse the given input string.
 * @param {String} input
 * @param {Object} options
 * @return {Object}
 */

const parse$j = (input, options) => {
  if (typeof input !== 'string') {
    throw new TypeError('Expected a string');
  }

  input = REPLACEMENTS[input] || input;

  const opts = { ...options };
  const max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;

  let len = input.length;
  if (len > max) {
    throw new SyntaxError(`Input length: ${len}, exceeds maximum allowed length: ${max}`);
  }

  const bos = { type: 'bos', value: '', output: opts.prepend || '' };
  const tokens = [bos];

  const capture = opts.capture ? '' : '?:';
  const win32 = utils$d.isWindows(options);

  // create constants based on platform, for windows or posix
  const PLATFORM_CHARS = constants$4.globChars(win32);
  const EXTGLOB_CHARS = constants$4.extglobChars(PLATFORM_CHARS);

  const {
    DOT_LITERAL,
    PLUS_LITERAL,
    SLASH_LITERAL,
    ONE_CHAR,
    DOTS_SLASH,
    NO_DOT,
    NO_DOT_SLASH,
    NO_DOTS_SLASH,
    QMARK,
    QMARK_NO_DOT,
    STAR,
    START_ANCHOR
  } = PLATFORM_CHARS;

  const globstar = opts => {
    return `(${capture}(?:(?!${START_ANCHOR}${opts.dot ? DOTS_SLASH : DOT_LITERAL}).)*?)`;
  };

  const nodot = opts.dot ? '' : NO_DOT;
  const qmarkNoDot = opts.dot ? QMARK : QMARK_NO_DOT;
  let star = opts.bash === true ? globstar(opts) : STAR;

  if (opts.capture) {
    star = `(${star})`;
  }

  // minimatch options support
  if (typeof opts.noext === 'boolean') {
    opts.noextglob = opts.noext;
  }

  const state = {
    input,
    index: -1,
    start: 0,
    dot: opts.dot === true,
    consumed: '',
    output: '',
    prefix: '',
    backtrack: false,
    negated: false,
    brackets: 0,
    braces: 0,
    parens: 0,
    quotes: 0,
    globstar: false,
    tokens
  };

  input = utils$d.removePrefix(input, state);
  len = input.length;

  const extglobs = [];
  const braces = [];
  const stack = [];
  let prev = bos;
  let value;

  /**
   * Tokenizing helpers
   */

  const eos = () => state.index === len - 1;
  const peek = state.peek = (n = 1) => input[state.index + n];
  const advance = state.advance = () => input[++state.index] || '';
  const remaining = () => input.slice(state.index + 1);
  const consume = (value = '', num = 0) => {
    state.consumed += value;
    state.index += num;
  };

  const append = token => {
    state.output += token.output != null ? token.output : token.value;
    consume(token.value);
  };

  const negate = () => {
    let count = 1;

    while (peek() === '!' && (peek(2) !== '(' || peek(3) === '?')) {
      advance();
      state.start++;
      count++;
    }

    if (count % 2 === 0) {
      return false;
    }

    state.negated = true;
    state.start++;
    return true;
  };

  const increment = type => {
    state[type]++;
    stack.push(type);
  };

  const decrement = type => {
    state[type]--;
    stack.pop();
  };

  /**
   * Push tokens onto the tokens array. This helper speeds up
   * tokenizing by 1) helping us avoid backtracking as much as possible,
   * and 2) helping us avoid creating extra tokens when consecutive
   * characters are plain text. This improves performance and simplifies
   * lookbehinds.
   */

  const push = tok => {
    if (prev.type === 'globstar') {
      const isBrace = state.braces > 0 && (tok.type === 'comma' || tok.type === 'brace');
      const isExtglob = tok.extglob === true || (extglobs.length && (tok.type === 'pipe' || tok.type === 'paren'));

      if (tok.type !== 'slash' && tok.type !== 'paren' && !isBrace && !isExtglob) {
        state.output = state.output.slice(0, -prev.output.length);
        prev.type = 'star';
        prev.value = '*';
        prev.output = star;
        state.output += prev.output;
      }
    }

    if (extglobs.length && tok.type !== 'paren') {
      extglobs[extglobs.length - 1].inner += tok.value;
    }

    if (tok.value || tok.output) append(tok);
    if (prev && prev.type === 'text' && tok.type === 'text') {
      prev.value += tok.value;
      prev.output = (prev.output || '') + tok.value;
      return;
    }

    tok.prev = prev;
    tokens.push(tok);
    prev = tok;
  };

  const extglobOpen = (type, value) => {
    const token = { ...EXTGLOB_CHARS[value], conditions: 1, inner: '' };

    token.prev = prev;
    token.parens = state.parens;
    token.output = state.output;
    const output = (opts.capture ? '(' : '') + token.open;

    increment('parens');
    push({ type, value, output: state.output ? '' : ONE_CHAR });
    push({ type: 'paren', extglob: true, value: advance(), output });
    extglobs.push(token);
  };

  const extglobClose = token => {
    let output = token.close + (opts.capture ? ')' : '');
    let rest;

    if (token.type === 'negate') {
      let extglobStar = star;

      if (token.inner && token.inner.length > 1 && token.inner.includes('/')) {
        extglobStar = globstar(opts);
      }

      if (extglobStar !== star || eos() || /^\)+$/.test(remaining())) {
        output = token.close = `)$))${extglobStar}`;
      }

      if (token.inner.includes('*') && (rest = remaining()) && /^\.[^\\/.]+$/.test(rest)) {
        output = token.close = `)${rest})${extglobStar})`;
      }

      if (token.prev.type === 'bos') {
        state.negatedExtglob = true;
      }
    }

    push({ type: 'paren', extglob: true, value, output });
    decrement('parens');
  };

  /**
   * Fast paths
   */

  if (opts.fastpaths !== false && !/(^[*!]|[/()[\]{}"])/.test(input)) {
    let backslashes = false;

    let output = input.replace(REGEX_SPECIAL_CHARS_BACKREF, (m, esc, chars, first, rest, index) => {
      if (first === '\\') {
        backslashes = true;
        return m;
      }

      if (first === '?') {
        if (esc) {
          return esc + first + (rest ? QMARK.repeat(rest.length) : '');
        }
        if (index === 0) {
          return qmarkNoDot + (rest ? QMARK.repeat(rest.length) : '');
        }
        return QMARK.repeat(chars.length);
      }

      if (first === '.') {
        return DOT_LITERAL.repeat(chars.length);
      }

      if (first === '*') {
        if (esc) {
          return esc + first + (rest ? star : '');
        }
        return star;
      }
      return esc ? m : `\\${m}`;
    });

    if (backslashes === true) {
      if (opts.unescape === true) {
        output = output.replace(/\\/g, '');
      } else {
        output = output.replace(/\\+/g, m => {
          return m.length % 2 === 0 ? '\\\\' : (m ? '\\' : '');
        });
      }
    }

    if (output === input && opts.contains === true) {
      state.output = input;
      return state;
    }

    state.output = utils$d.wrapOutput(output, state, options);
    return state;
  }

  /**
   * Tokenize input until we reach end-of-string
   */

  while (!eos()) {
    value = advance();

    if (value === '\u0000') {
      continue;
    }

    /**
     * Escaped characters
     */

    if (value === '\\') {
      const next = peek();

      if (next === '/' && opts.bash !== true) {
        continue;
      }

      if (next === '.' || next === ';') {
        continue;
      }

      if (!next) {
        value += '\\';
        push({ type: 'text', value });
        continue;
      }

      // collapse slashes to reduce potential for exploits
      const match = /^\\+/.exec(remaining());
      let slashes = 0;

      if (match && match[0].length > 2) {
        slashes = match[0].length;
        state.index += slashes;
        if (slashes % 2 !== 0) {
          value += '\\';
        }
      }

      if (opts.unescape === true) {
        value = advance();
      } else {
        value += advance();
      }

      if (state.brackets === 0) {
        push({ type: 'text', value });
        continue;
      }
    }

    /**
     * If we're inside a regex character class, continue
     * until we reach the closing bracket.
     */

    if (state.brackets > 0 && (value !== ']' || prev.value === '[' || prev.value === '[^')) {
      if (opts.posix !== false && value === ':') {
        const inner = prev.value.slice(1);
        if (inner.includes('[')) {
          prev.posix = true;

          if (inner.includes(':')) {
            const idx = prev.value.lastIndexOf('[');
            const pre = prev.value.slice(0, idx);
            const rest = prev.value.slice(idx + 2);
            const posix = POSIX_REGEX_SOURCE[rest];
            if (posix) {
              prev.value = pre + posix;
              state.backtrack = true;
              advance();

              if (!bos.output && tokens.indexOf(prev) === 1) {
                bos.output = ONE_CHAR;
              }
              continue;
            }
          }
        }
      }

      if ((value === '[' && peek() !== ':') || (value === '-' && peek() === ']')) {
        value = `\\${value}`;
      }

      if (value === ']' && (prev.value === '[' || prev.value === '[^')) {
        value = `\\${value}`;
      }

      if (opts.posix === true && value === '!' && prev.value === '[') {
        value = '^';
      }

      prev.value += value;
      append({ value });
      continue;
    }

    /**
     * If we're inside a quoted string, continue
     * until we reach the closing double quote.
     */

    if (state.quotes === 1 && value !== '"') {
      value = utils$d.escapeRegex(value);
      prev.value += value;
      append({ value });
      continue;
    }

    /**
     * Double quotes
     */

    if (value === '"') {
      state.quotes = state.quotes === 1 ? 0 : 1;
      if (opts.keepQuotes === true) {
        push({ type: 'text', value });
      }
      continue;
    }

    /**
     * Parentheses
     */

    if (value === '(') {
      increment('parens');
      push({ type: 'paren', value });
      continue;
    }

    if (value === ')') {
      if (state.parens === 0 && opts.strictBrackets === true) {
        throw new SyntaxError(syntaxError('opening', '('));
      }

      const extglob = extglobs[extglobs.length - 1];
      if (extglob && state.parens === extglob.parens + 1) {
        extglobClose(extglobs.pop());
        continue;
      }

      push({ type: 'paren', value, output: state.parens ? ')' : '\\)' });
      decrement('parens');
      continue;
    }

    /**
     * Square brackets
     */

    if (value === '[') {
      if (opts.nobracket === true || !remaining().includes(']')) {
        if (opts.nobracket !== true && opts.strictBrackets === true) {
          throw new SyntaxError(syntaxError('closing', ']'));
        }

        value = `\\${value}`;
      } else {
        increment('brackets');
      }

      push({ type: 'bracket', value });
      continue;
    }

    if (value === ']') {
      if (opts.nobracket === true || (prev && prev.type === 'bracket' && prev.value.length === 1)) {
        push({ type: 'text', value, output: `\\${value}` });
        continue;
      }

      if (state.brackets === 0) {
        if (opts.strictBrackets === true) {
          throw new SyntaxError(syntaxError('opening', '['));
        }

        push({ type: 'text', value, output: `\\${value}` });
        continue;
      }

      decrement('brackets');

      const prevValue = prev.value.slice(1);
      if (prev.posix !== true && prevValue[0] === '^' && !prevValue.includes('/')) {
        value = `/${value}`;
      }

      prev.value += value;
      append({ value });

      // when literal brackets are explicitly disabled
      // assume we should match with a regex character class
      if (opts.literalBrackets === false || utils$d.hasRegexChars(prevValue)) {
        continue;
      }

      const escaped = utils$d.escapeRegex(prev.value);
      state.output = state.output.slice(0, -prev.value.length);

      // when literal brackets are explicitly enabled
      // assume we should escape the brackets to match literal characters
      if (opts.literalBrackets === true) {
        state.output += escaped;
        prev.value = escaped;
        continue;
      }

      // when the user specifies nothing, try to match both
      prev.value = `(${capture}${escaped}|${prev.value})`;
      state.output += prev.value;
      continue;
    }

    /**
     * Braces
     */

    if (value === '{' && opts.nobrace !== true) {
      increment('braces');

      const open = {
        type: 'brace',
        value,
        output: '(',
        outputIndex: state.output.length,
        tokensIndex: state.tokens.length
      };

      braces.push(open);
      push(open);
      continue;
    }

    if (value === '}') {
      const brace = braces[braces.length - 1];

      if (opts.nobrace === true || !brace) {
        push({ type: 'text', value, output: value });
        continue;
      }

      let output = ')';

      if (brace.dots === true) {
        const arr = tokens.slice();
        const range = [];

        for (let i = arr.length - 1; i >= 0; i--) {
          tokens.pop();
          if (arr[i].type === 'brace') {
            break;
          }
          if (arr[i].type !== 'dots') {
            range.unshift(arr[i].value);
          }
        }

        output = expandRange(range, opts);
        state.backtrack = true;
      }

      if (brace.comma !== true && brace.dots !== true) {
        const out = state.output.slice(0, brace.outputIndex);
        const toks = state.tokens.slice(brace.tokensIndex);
        brace.value = brace.output = '\\{';
        value = output = '\\}';
        state.output = out;
        for (const t of toks) {
          state.output += (t.output || t.value);
        }
      }

      push({ type: 'brace', value, output });
      decrement('braces');
      braces.pop();
      continue;
    }

    /**
     * Pipes
     */

    if (value === '|') {
      if (extglobs.length > 0) {
        extglobs[extglobs.length - 1].conditions++;
      }
      push({ type: 'text', value });
      continue;
    }

    /**
     * Commas
     */

    if (value === ',') {
      let output = value;

      const brace = braces[braces.length - 1];
      if (brace && stack[stack.length - 1] === 'braces') {
        brace.comma = true;
        output = '|';
      }

      push({ type: 'comma', value, output });
      continue;
    }

    /**
     * Slashes
     */

    if (value === '/') {
      // if the beginning of the glob is "./", advance the start
      // to the current index, and don't add the "./" characters
      // to the state. This greatly simplifies lookbehinds when
      // checking for BOS characters like "!" and "." (not "./")
      if (prev.type === 'dot' && state.index === state.start + 1) {
        state.start = state.index + 1;
        state.consumed = '';
        state.output = '';
        tokens.pop();
        prev = bos; // reset "prev" to the first token
        continue;
      }

      push({ type: 'slash', value, output: SLASH_LITERAL });
      continue;
    }

    /**
     * Dots
     */

    if (value === '.') {
      if (state.braces > 0 && prev.type === 'dot') {
        if (prev.value === '.') prev.output = DOT_LITERAL;
        const brace = braces[braces.length - 1];
        prev.type = 'dots';
        prev.output += value;
        prev.value += value;
        brace.dots = true;
        continue;
      }

      if ((state.braces + state.parens) === 0 && prev.type !== 'bos' && prev.type !== 'slash') {
        push({ type: 'text', value, output: DOT_LITERAL });
        continue;
      }

      push({ type: 'dot', value, output: DOT_LITERAL });
      continue;
    }

    /**
     * Question marks
     */

    if (value === '?') {
      const isGroup = prev && prev.value === '(';
      if (!isGroup && opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
        extglobOpen('qmark', value);
        continue;
      }

      if (prev && prev.type === 'paren') {
        const next = peek();
        let output = value;

        if (next === '<' && !utils$d.supportsLookbehinds()) {
          throw new Error('Node.js v10 or higher is required for regex lookbehinds');
        }

        if ((prev.value === '(' && !/[!=<:]/.test(next)) || (next === '<' && !/<([!=]|\w+>)/.test(remaining()))) {
          output = `\\${value}`;
        }

        push({ type: 'text', value, output });
        continue;
      }

      if (opts.dot !== true && (prev.type === 'slash' || prev.type === 'bos')) {
        push({ type: 'qmark', value, output: QMARK_NO_DOT });
        continue;
      }

      push({ type: 'qmark', value, output: QMARK });
      continue;
    }

    /**
     * Exclamation
     */

    if (value === '!') {
      if (opts.noextglob !== true && peek() === '(') {
        if (peek(2) !== '?' || !/[!=<:]/.test(peek(3))) {
          extglobOpen('negate', value);
          continue;
        }
      }

      if (opts.nonegate !== true && state.index === 0) {
        negate();
        continue;
      }
    }

    /**
     * Plus
     */

    if (value === '+') {
      if (opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
        extglobOpen('plus', value);
        continue;
      }

      if ((prev && prev.value === '(') || opts.regex === false) {
        push({ type: 'plus', value, output: PLUS_LITERAL });
        continue;
      }

      if ((prev && (prev.type === 'bracket' || prev.type === 'paren' || prev.type === 'brace')) || state.parens > 0) {
        push({ type: 'plus', value });
        continue;
      }

      push({ type: 'plus', value: PLUS_LITERAL });
      continue;
    }

    /**
     * Plain text
     */

    if (value === '@') {
      if (opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
        push({ type: 'at', extglob: true, value, output: '' });
        continue;
      }

      push({ type: 'text', value });
      continue;
    }

    /**
     * Plain text
     */

    if (value !== '*') {
      if (value === '$' || value === '^') {
        value = `\\${value}`;
      }

      const match = REGEX_NON_SPECIAL_CHARS.exec(remaining());
      if (match) {
        value += match[0];
        state.index += match[0].length;
      }

      push({ type: 'text', value });
      continue;
    }

    /**
     * Stars
     */

    if (prev && (prev.type === 'globstar' || prev.star === true)) {
      prev.type = 'star';
      prev.star = true;
      prev.value += value;
      prev.output = star;
      state.backtrack = true;
      state.globstar = true;
      consume(value);
      continue;
    }

    let rest = remaining();
    if (opts.noextglob !== true && /^\([^?]/.test(rest)) {
      extglobOpen('star', value);
      continue;
    }

    if (prev.type === 'star') {
      if (opts.noglobstar === true) {
        consume(value);
        continue;
      }

      const prior = prev.prev;
      const before = prior.prev;
      const isStart = prior.type === 'slash' || prior.type === 'bos';
      const afterStar = before && (before.type === 'star' || before.type === 'globstar');

      if (opts.bash === true && (!isStart || (rest[0] && rest[0] !== '/'))) {
        push({ type: 'star', value, output: '' });
        continue;
      }

      const isBrace = state.braces > 0 && (prior.type === 'comma' || prior.type === 'brace');
      const isExtglob = extglobs.length && (prior.type === 'pipe' || prior.type === 'paren');
      if (!isStart && prior.type !== 'paren' && !isBrace && !isExtglob) {
        push({ type: 'star', value, output: '' });
        continue;
      }

      // strip consecutive `/**/`
      while (rest.slice(0, 3) === '/**') {
        const after = input[state.index + 4];
        if (after && after !== '/') {
          break;
        }
        rest = rest.slice(3);
        consume('/**', 3);
      }

      if (prior.type === 'bos' && eos()) {
        prev.type = 'globstar';
        prev.value += value;
        prev.output = globstar(opts);
        state.output = prev.output;
        state.globstar = true;
        consume(value);
        continue;
      }

      if (prior.type === 'slash' && prior.prev.type !== 'bos' && !afterStar && eos()) {
        state.output = state.output.slice(0, -(prior.output + prev.output).length);
        prior.output = `(?:${prior.output}`;

        prev.type = 'globstar';
        prev.output = globstar(opts) + (opts.strictSlashes ? ')' : '|$)');
        prev.value += value;
        state.globstar = true;
        state.output += prior.output + prev.output;
        consume(value);
        continue;
      }

      if (prior.type === 'slash' && prior.prev.type !== 'bos' && rest[0] === '/') {
        const end = rest[1] !== void 0 ? '|$' : '';

        state.output = state.output.slice(0, -(prior.output + prev.output).length);
        prior.output = `(?:${prior.output}`;

        prev.type = 'globstar';
        prev.output = `${globstar(opts)}${SLASH_LITERAL}|${SLASH_LITERAL}${end})`;
        prev.value += value;

        state.output += prior.output + prev.output;
        state.globstar = true;

        consume(value + advance());

        push({ type: 'slash', value: '/', output: '' });
        continue;
      }

      if (prior.type === 'bos' && rest[0] === '/') {
        prev.type = 'globstar';
        prev.value += value;
        prev.output = `(?:^|${SLASH_LITERAL}|${globstar(opts)}${SLASH_LITERAL})`;
        state.output = prev.output;
        state.globstar = true;
        consume(value + advance());
        push({ type: 'slash', value: '/', output: '' });
        continue;
      }

      // remove single star from output
      state.output = state.output.slice(0, -prev.output.length);

      // reset previous token to globstar
      prev.type = 'globstar';
      prev.output = globstar(opts);
      prev.value += value;

      // reset output with globstar
      state.output += prev.output;
      state.globstar = true;
      consume(value);
      continue;
    }

    const token = { type: 'star', value, output: star };

    if (opts.bash === true) {
      token.output = '.*?';
      if (prev.type === 'bos' || prev.type === 'slash') {
        token.output = nodot + token.output;
      }
      push(token);
      continue;
    }

    if (prev && (prev.type === 'bracket' || prev.type === 'paren') && opts.regex === true) {
      token.output = value;
      push(token);
      continue;
    }

    if (state.index === state.start || prev.type === 'slash' || prev.type === 'dot') {
      if (prev.type === 'dot') {
        state.output += NO_DOT_SLASH;
        prev.output += NO_DOT_SLASH;

      } else if (opts.dot === true) {
        state.output += NO_DOTS_SLASH;
        prev.output += NO_DOTS_SLASH;

      } else {
        state.output += nodot;
        prev.output += nodot;
      }

      if (peek() !== '*') {
        state.output += ONE_CHAR;
        prev.output += ONE_CHAR;
      }
    }

    push(token);
  }

  while (state.brackets > 0) {
    if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', ']'));
    state.output = utils$d.escapeLast(state.output, '[');
    decrement('brackets');
  }

  while (state.parens > 0) {
    if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', ')'));
    state.output = utils$d.escapeLast(state.output, '(');
    decrement('parens');
  }

  while (state.braces > 0) {
    if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', '}'));
    state.output = utils$d.escapeLast(state.output, '{');
    decrement('braces');
  }

  if (opts.strictSlashes !== true && (prev.type === 'star' || prev.type === 'bracket')) {
    push({ type: 'maybe_slash', value: '', output: `${SLASH_LITERAL}?` });
  }

  // rebuild the output if we had to backtrack at any point
  if (state.backtrack === true) {
    state.output = '';

    for (const token of state.tokens) {
      state.output += token.output != null ? token.output : token.value;

      if (token.suffix) {
        state.output += token.suffix;
      }
    }
  }

  return state;
};

/**
 * Fast paths for creating regular expressions for common glob patterns.
 * This can significantly speed up processing and has very little downside
 * impact when none of the fast paths match.
 */

parse$j.fastpaths = (input, options) => {
  const opts = { ...options };
  const max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
  const len = input.length;
  if (len > max) {
    throw new SyntaxError(`Input length: ${len}, exceeds maximum allowed length: ${max}`);
  }

  input = REPLACEMENTS[input] || input;
  const win32 = utils$d.isWindows(options);

  // create constants based on platform, for windows or posix
  const {
    DOT_LITERAL,
    SLASH_LITERAL,
    ONE_CHAR,
    DOTS_SLASH,
    NO_DOT,
    NO_DOTS,
    NO_DOTS_SLASH,
    STAR,
    START_ANCHOR
  } = constants$4.globChars(win32);

  const nodot = opts.dot ? NO_DOTS : NO_DOT;
  const slashDot = opts.dot ? NO_DOTS_SLASH : NO_DOT;
  const capture = opts.capture ? '' : '?:';
  const state = { negated: false, prefix: '' };
  let star = opts.bash === true ? '.*?' : STAR;

  if (opts.capture) {
    star = `(${star})`;
  }

  const globstar = opts => {
    if (opts.noglobstar === true) return star;
    return `(${capture}(?:(?!${START_ANCHOR}${opts.dot ? DOTS_SLASH : DOT_LITERAL}).)*?)`;
  };

  const create = str => {
    switch (str) {
      case '*':
        return `${nodot}${ONE_CHAR}${star}`;

      case '.*':
        return `${DOT_LITERAL}${ONE_CHAR}${star}`;

      case '*.*':
        return `${nodot}${star}${DOT_LITERAL}${ONE_CHAR}${star}`;

      case '*/*':
        return `${nodot}${star}${SLASH_LITERAL}${ONE_CHAR}${slashDot}${star}`;

      case '**':
        return nodot + globstar(opts);

      case '**/*':
        return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${slashDot}${ONE_CHAR}${star}`;

      case '**/*.*':
        return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${slashDot}${star}${DOT_LITERAL}${ONE_CHAR}${star}`;

      case '**/.*':
        return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${DOT_LITERAL}${ONE_CHAR}${star}`;

      default: {
        const match = /^(.*?)\.(\w+)$/.exec(str);
        if (!match) return;

        const source = create(match[1]);
        if (!source) return;

        return source + DOT_LITERAL + match[2];
      }
    }
  };

  const output = utils$d.removePrefix(input, state);
  let source = create(output);

  if (source && opts.strictSlashes !== true) {
    source += `${SLASH_LITERAL}?`;
  }

  return source;
};

var parse_1$1 = parse$j;

const path$p = path__default;
const scan = scan_1;
const parse$i = parse_1$1;
const utils$c = utils$f;
const constants$3 = constants$5;
const isObject = val => val && typeof val === 'object' && !Array.isArray(val);

/**
 * Creates a matcher function from one or more glob patterns. The
 * returned function takes a string to match as its first argument,
 * and returns true if the string is a match. The returned matcher
 * function also takes a boolean as the second argument that, when true,
 * returns an object with additional information.
 *
 * ```js
 * const picomatch = require('picomatch');
 * // picomatch(glob[, options]);
 *
 * const isMatch = picomatch('*.!(*a)');
 * console.log(isMatch('a.a')); //=> false
 * console.log(isMatch('a.b')); //=> true
 * ```
 * @name picomatch
 * @param {String|Array} `globs` One or more glob patterns.
 * @param {Object=} `options`
 * @return {Function=} Returns a matcher function.
 * @api public
 */

const picomatch$4 = (glob, options, returnState = false) => {
  if (Array.isArray(glob)) {
    const fns = glob.map(input => picomatch$4(input, options, returnState));
    const arrayMatcher = str => {
      for (const isMatch of fns) {
        const state = isMatch(str);
        if (state) return state;
      }
      return false;
    };
    return arrayMatcher;
  }

  const isState = isObject(glob) && glob.tokens && glob.input;

  if (glob === '' || (typeof glob !== 'string' && !isState)) {
    throw new TypeError('Expected pattern to be a non-empty string');
  }

  const opts = options || {};
  const posix = utils$c.isWindows(options);
  const regex = isState
    ? picomatch$4.compileRe(glob, options)
    : picomatch$4.makeRe(glob, options, false, true);

  const state = regex.state;
  delete regex.state;

  let isIgnored = () => false;
  if (opts.ignore) {
    const ignoreOpts = { ...options, ignore: null, onMatch: null, onResult: null };
    isIgnored = picomatch$4(opts.ignore, ignoreOpts, returnState);
  }

  const matcher = (input, returnObject = false) => {
    const { isMatch, match, output } = picomatch$4.test(input, regex, options, { glob, posix });
    const result = { glob, state, regex, posix, input, output, match, isMatch };

    if (typeof opts.onResult === 'function') {
      opts.onResult(result);
    }

    if (isMatch === false) {
      result.isMatch = false;
      return returnObject ? result : false;
    }

    if (isIgnored(input)) {
      if (typeof opts.onIgnore === 'function') {
        opts.onIgnore(result);
      }
      result.isMatch = false;
      return returnObject ? result : false;
    }

    if (typeof opts.onMatch === 'function') {
      opts.onMatch(result);
    }
    return returnObject ? result : true;
  };

  if (returnState) {
    matcher.state = state;
  }

  return matcher;
};

/**
 * Test `input` with the given `regex`. This is used by the main
 * `picomatch()` function to test the input string.
 *
 * ```js
 * const picomatch = require('picomatch');
 * // picomatch.test(input, regex[, options]);
 *
 * console.log(picomatch.test('foo/bar', /^(?:([^/]*?)\/([^/]*?))$/));
 * // { isMatch: true, match: [ 'foo/', 'foo', 'bar' ], output: 'foo/bar' }
 * ```
 * @param {String} `input` String to test.
 * @param {RegExp} `regex`
 * @return {Object} Returns an object with matching info.
 * @api public
 */

picomatch$4.test = (input, regex, options, { glob, posix } = {}) => {
  if (typeof input !== 'string') {
    throw new TypeError('Expected input to be a string');
  }

  if (input === '') {
    return { isMatch: false, output: '' };
  }

  const opts = options || {};
  const format = opts.format || (posix ? utils$c.toPosixSlashes : null);
  let match = input === glob;
  let output = (match && format) ? format(input) : input;

  if (match === false) {
    output = format ? format(input) : input;
    match = output === glob;
  }

  if (match === false || opts.capture === true) {
    if (opts.matchBase === true || opts.basename === true) {
      match = picomatch$4.matchBase(input, regex, options, posix);
    } else {
      match = regex.exec(output);
    }
  }

  return { isMatch: Boolean(match), match, output };
};

/**
 * Match the basename of a filepath.
 *
 * ```js
 * const picomatch = require('picomatch');
 * // picomatch.matchBase(input, glob[, options]);
 * console.log(picomatch.matchBase('foo/bar.js', '*.js'); // true
 * ```
 * @param {String} `input` String to test.
 * @param {RegExp|String} `glob` Glob pattern or regex created by [.makeRe](#makeRe).
 * @return {Boolean}
 * @api public
 */

picomatch$4.matchBase = (input, glob, options, posix = utils$c.isWindows(options)) => {
  const regex = glob instanceof RegExp ? glob : picomatch$4.makeRe(glob, options);
  return regex.test(path$p.basename(input));
};

/**
 * Returns true if **any** of the given glob `patterns` match the specified `string`.
 *
 * ```js
 * const picomatch = require('picomatch');
 * // picomatch.isMatch(string, patterns[, options]);
 *
 * console.log(picomatch.isMatch('a.a', ['b.*', '*.a'])); //=> true
 * console.log(picomatch.isMatch('a.a', 'b.*')); //=> false
 * ```
 * @param {String|Array} str The string to test.
 * @param {String|Array} patterns One or more glob patterns to use for matching.
 * @param {Object} [options] See available [options](#options).
 * @return {Boolean} Returns true if any patterns match `str`
 * @api public
 */

picomatch$4.isMatch = (str, patterns, options) => picomatch$4(patterns, options)(str);

/**
 * Parse a glob pattern to create the source string for a regular
 * expression.
 *
 * ```js
 * const picomatch = require('picomatch');
 * const result = picomatch.parse(pattern[, options]);
 * ```
 * @param {String} `pattern`
 * @param {Object} `options`
 * @return {Object} Returns an object with useful properties and output to be used as a regex source string.
 * @api public
 */

picomatch$4.parse = (pattern, options) => {
  if (Array.isArray(pattern)) return pattern.map(p => picomatch$4.parse(p, options));
  return parse$i(pattern, { ...options, fastpaths: false });
};

/**
 * Scan a glob pattern to separate the pattern into segments.
 *
 * ```js
 * const picomatch = require('picomatch');
 * // picomatch.scan(input[, options]);
 *
 * const result = picomatch.scan('!./foo/*.js');
 * console.log(result);
 * { prefix: '!./',
 *   input: '!./foo/*.js',
 *   start: 3,
 *   base: 'foo',
 *   glob: '*.js',
 *   isBrace: false,
 *   isBracket: false,
 *   isGlob: true,
 *   isExtglob: false,
 *   isGlobstar: false,
 *   negated: true }
 * ```
 * @param {String} `input` Glob pattern to scan.
 * @param {Object} `options`
 * @return {Object} Returns an object with
 * @api public
 */

picomatch$4.scan = (input, options) => scan(input, options);

/**
 * Compile a regular expression from the `state` object returned by the
 * [parse()](#parse) method.
 *
 * @param {Object} `state`
 * @param {Object} `options`
 * @param {Boolean} `returnOutput` Intended for implementors, this argument allows you to return the raw output from the parser.
 * @param {Boolean} `returnState` Adds the state to a `state` property on the returned regex. Useful for implementors and debugging.
 * @return {RegExp}
 * @api public
 */

picomatch$4.compileRe = (state, options, returnOutput = false, returnState = false) => {
  if (returnOutput === true) {
    return state.output;
  }

  const opts = options || {};
  const prepend = opts.contains ? '' : '^';
  const append = opts.contains ? '' : '$';

  let source = `${prepend}(?:${state.output})${append}`;
  if (state && state.negated === true) {
    source = `^(?!${source}).*$`;
  }

  const regex = picomatch$4.toRegex(source, options);
  if (returnState === true) {
    regex.state = state;
  }

  return regex;
};

/**
 * Create a regular expression from a parsed glob pattern.
 *
 * ```js
 * const picomatch = require('picomatch');
 * const state = picomatch.parse('*.js');
 * // picomatch.compileRe(state[, options]);
 *
 * console.log(picomatch.compileRe(state));
 * //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
 * ```
 * @param {String} `state` The object returned from the `.parse` method.
 * @param {Object} `options`
 * @param {Boolean} `returnOutput` Implementors may use this argument to return the compiled output, instead of a regular expression. This is not exposed on the options to prevent end-users from mutating the result.
 * @param {Boolean} `returnState` Implementors may use this argument to return the state from the parsed glob with the returned regular expression.
 * @return {RegExp} Returns a regex created from the given pattern.
 * @api public
 */

picomatch$4.makeRe = (input, options = {}, returnOutput = false, returnState = false) => {
  if (!input || typeof input !== 'string') {
    throw new TypeError('Expected a non-empty string');
  }

  let parsed = { negated: false, fastpaths: true };

  if (options.fastpaths !== false && (input[0] === '.' || input[0] === '*')) {
    parsed.output = parse$i.fastpaths(input, options);
  }

  if (!parsed.output) {
    parsed = parse$i(input, options);
  }

  return picomatch$4.compileRe(parsed, options, returnOutput, returnState);
};

/**
 * Create a regular expression from the given regex source string.
 *
 * ```js
 * const picomatch = require('picomatch');
 * // picomatch.toRegex(source[, options]);
 *
 * const { output } = picomatch.parse('*.js');
 * console.log(picomatch.toRegex(output));
 * //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
 * ```
 * @param {String} `source` Regular expression source string.
 * @param {Object} `options`
 * @return {RegExp}
 * @api public
 */

picomatch$4.toRegex = (source, options) => {
  try {
    const opts = options || {};
    return new RegExp(source, opts.flags || (opts.nocase ? 'i' : ''));
  } catch (err) {
    if (options && options.debug === true) throw err;
    return /$^/;
  }
};

/**
 * Picomatch constants.
 * @return {Object}
 */

picomatch$4.constants = constants$3;

/**
 * Expose "picomatch"
 */

var picomatch_1 = picomatch$4;

var picomatch$3 = picomatch_1;

const util$7 = require$$0__default$2;
const braces$1 = braces_1;
const picomatch$2 = picomatch$3;
const utils$b = utils$f;
const isEmptyString = val => val === '' || val === './';

/**
 * Returns an array of strings that match one or more glob patterns.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm(list, patterns[, options]);
 *
 * console.log(mm(['a.js', 'a.txt'], ['*.js']));
 * //=> [ 'a.js' ]
 * ```
 * @param {String|Array<string>} `list` List of strings to match.
 * @param {String|Array<string>} `patterns` One or more glob patterns to use for matching.
 * @param {Object} `options` See available [options](#options)
 * @return {Array} Returns an array of matches
 * @summary false
 * @api public
 */

const micromatch$1 = (list, patterns, options) => {
  patterns = [].concat(patterns);
  list = [].concat(list);

  let omit = new Set();
  let keep = new Set();
  let items = new Set();
  let negatives = 0;

  let onResult = state => {
    items.add(state.output);
    if (options && options.onResult) {
      options.onResult(state);
    }
  };

  for (let i = 0; i < patterns.length; i++) {
    let isMatch = picomatch$2(String(patterns[i]), { ...options, onResult }, true);
    let negated = isMatch.state.negated || isMatch.state.negatedExtglob;
    if (negated) negatives++;

    for (let item of list) {
      let matched = isMatch(item, true);

      let match = negated ? !matched.isMatch : matched.isMatch;
      if (!match) continue;

      if (negated) {
        omit.add(matched.output);
      } else {
        omit.delete(matched.output);
        keep.add(matched.output);
      }
    }
  }

  let result = negatives === patterns.length ? [...items] : [...keep];
  let matches = result.filter(item => !omit.has(item));

  if (options && matches.length === 0) {
    if (options.failglob === true) {
      throw new Error(`No matches found for "${patterns.join(', ')}"`);
    }

    if (options.nonull === true || options.nullglob === true) {
      return options.unescape ? patterns.map(p => p.replace(/\\/g, '')) : patterns;
    }
  }

  return matches;
};

/**
 * Backwards compatibility
 */

micromatch$1.match = micromatch$1;

/**
 * Returns a matcher function from the given glob `pattern` and `options`.
 * The returned function takes a string to match as its only argument and returns
 * true if the string is a match.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.matcher(pattern[, options]);
 *
 * const isMatch = mm.matcher('*.!(*a)');
 * console.log(isMatch('a.a')); //=> false
 * console.log(isMatch('a.b')); //=> true
 * ```
 * @param {String} `pattern` Glob pattern
 * @param {Object} `options`
 * @return {Function} Returns a matcher function.
 * @api public
 */

micromatch$1.matcher = (pattern, options) => picomatch$2(pattern, options);

/**
 * Returns true if **any** of the given glob `patterns` match the specified `string`.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.isMatch(string, patterns[, options]);
 *
 * console.log(mm.isMatch('a.a', ['b.*', '*.a'])); //=> true
 * console.log(mm.isMatch('a.a', 'b.*')); //=> false
 * ```
 * @param {String} `str` The string to test.
 * @param {String|Array} `patterns` One or more glob patterns to use for matching.
 * @param {Object} `[options]` See available [options](#options).
 * @return {Boolean} Returns true if any patterns match `str`
 * @api public
 */

micromatch$1.isMatch = (str, patterns, options) => picomatch$2(patterns, options)(str);

/**
 * Backwards compatibility
 */

micromatch$1.any = micromatch$1.isMatch;

/**
 * Returns a list of strings that _**do not match any**_ of the given `patterns`.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.not(list, patterns[, options]);
 *
 * console.log(mm.not(['a.a', 'b.b', 'c.c'], '*.a'));
 * //=> ['b.b', 'c.c']
 * ```
 * @param {Array} `list` Array of strings to match.
 * @param {String|Array} `patterns` One or more glob pattern to use for matching.
 * @param {Object} `options` See available [options](#options) for changing how matches are performed
 * @return {Array} Returns an array of strings that **do not match** the given patterns.
 * @api public
 */

micromatch$1.not = (list, patterns, options = {}) => {
  patterns = [].concat(patterns).map(String);
  let result = new Set();
  let items = [];

  let onResult = state => {
    if (options.onResult) options.onResult(state);
    items.push(state.output);
  };

  let matches = micromatch$1(list, patterns, { ...options, onResult });

  for (let item of items) {
    if (!matches.includes(item)) {
      result.add(item);
    }
  }
  return [...result];
};

/**
 * Returns true if the given `string` contains the given pattern. Similar
 * to [.isMatch](#isMatch) but the pattern can match any part of the string.
 *
 * ```js
 * var mm = require('micromatch');
 * // mm.contains(string, pattern[, options]);
 *
 * console.log(mm.contains('aa/bb/cc', '*b'));
 * //=> true
 * console.log(mm.contains('aa/bb/cc', '*d'));
 * //=> false
 * ```
 * @param {String} `str` The string to match.
 * @param {String|Array} `patterns` Glob pattern to use for matching.
 * @param {Object} `options` See available [options](#options) for changing how matches are performed
 * @return {Boolean} Returns true if any of the patterns matches any part of `str`.
 * @api public
 */

micromatch$1.contains = (str, pattern, options) => {
  if (typeof str !== 'string') {
    throw new TypeError(`Expected a string: "${util$7.inspect(str)}"`);
  }

  if (Array.isArray(pattern)) {
    return pattern.some(p => micromatch$1.contains(str, p, options));
  }

  if (typeof pattern === 'string') {
    if (isEmptyString(str) || isEmptyString(pattern)) {
      return false;
    }

    if (str.includes(pattern) || (str.startsWith('./') && str.slice(2).includes(pattern))) {
      return true;
    }
  }

  return micromatch$1.isMatch(str, pattern, { ...options, contains: true });
};

/**
 * Filter the keys of the given object with the given `glob` pattern
 * and `options`. Does not attempt to match nested keys. If you need this feature,
 * use [glob-object][] instead.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.matchKeys(object, patterns[, options]);
 *
 * const obj = { aa: 'a', ab: 'b', ac: 'c' };
 * console.log(mm.matchKeys(obj, '*b'));
 * //=> { ab: 'b' }
 * ```
 * @param {Object} `object` The object with keys to filter.
 * @param {String|Array} `patterns` One or more glob patterns to use for matching.
 * @param {Object} `options` See available [options](#options) for changing how matches are performed
 * @return {Object} Returns an object with only keys that match the given patterns.
 * @api public
 */

micromatch$1.matchKeys = (obj, patterns, options) => {
  if (!utils$b.isObject(obj)) {
    throw new TypeError('Expected the first argument to be an object');
  }
  let keys = micromatch$1(Object.keys(obj), patterns, options);
  let res = {};
  for (let key of keys) res[key] = obj[key];
  return res;
};

/**
 * Returns true if some of the strings in the given `list` match any of the given glob `patterns`.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.some(list, patterns[, options]);
 *
 * console.log(mm.some(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
 * // true
 * console.log(mm.some(['foo.js'], ['*.js', '!foo.js']));
 * // false
 * ```
 * @param {String|Array} `list` The string or array of strings to test. Returns as soon as the first match is found.
 * @param {String|Array} `patterns` One or more glob patterns to use for matching.
 * @param {Object} `options` See available [options](#options) for changing how matches are performed
 * @return {Boolean} Returns true if any `patterns` matches any of the strings in `list`
 * @api public
 */

micromatch$1.some = (list, patterns, options) => {
  let items = [].concat(list);

  for (let pattern of [].concat(patterns)) {
    let isMatch = picomatch$2(String(pattern), options);
    if (items.some(item => isMatch(item))) {
      return true;
    }
  }
  return false;
};

/**
 * Returns true if every string in the given `list` matches
 * any of the given glob `patterns`.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.every(list, patterns[, options]);
 *
 * console.log(mm.every('foo.js', ['foo.js']));
 * // true
 * console.log(mm.every(['foo.js', 'bar.js'], ['*.js']));
 * // true
 * console.log(mm.every(['foo.js', 'bar.js'], ['*.js', '!foo.js']));
 * // false
 * console.log(mm.every(['foo.js'], ['*.js', '!foo.js']));
 * // false
 * ```
 * @param {String|Array} `list` The string or array of strings to test.
 * @param {String|Array} `patterns` One or more glob patterns to use for matching.
 * @param {Object} `options` See available [options](#options) for changing how matches are performed
 * @return {Boolean} Returns true if all `patterns` matches all of the strings in `list`
 * @api public
 */

micromatch$1.every = (list, patterns, options) => {
  let items = [].concat(list);

  for (let pattern of [].concat(patterns)) {
    let isMatch = picomatch$2(String(pattern), options);
    if (!items.every(item => isMatch(item))) {
      return false;
    }
  }
  return true;
};

/**
 * Returns true if **all** of the given `patterns` match
 * the specified string.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.all(string, patterns[, options]);
 *
 * console.log(mm.all('foo.js', ['foo.js']));
 * // true
 *
 * console.log(mm.all('foo.js', ['*.js', '!foo.js']));
 * // false
 *
 * console.log(mm.all('foo.js', ['*.js', 'foo.js']));
 * // true
 *
 * console.log(mm.all('foo.js', ['*.js', 'f*', '*o*', '*o.js']));
 * // true
 * ```
 * @param {String|Array} `str` The string to test.
 * @param {String|Array} `patterns` One or more glob patterns to use for matching.
 * @param {Object} `options` See available [options](#options) for changing how matches are performed
 * @return {Boolean} Returns true if any patterns match `str`
 * @api public
 */

micromatch$1.all = (str, patterns, options) => {
  if (typeof str !== 'string') {
    throw new TypeError(`Expected a string: "${util$7.inspect(str)}"`);
  }

  return [].concat(patterns).every(p => picomatch$2(p, options)(str));
};

/**
 * Returns an array of matches captured by `pattern` in `string, or `null` if the pattern did not match.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.capture(pattern, string[, options]);
 *
 * console.log(mm.capture('test/*.js', 'test/foo.js'));
 * //=> ['foo']
 * console.log(mm.capture('test/*.js', 'foo/bar.css'));
 * //=> null
 * ```
 * @param {String} `glob` Glob pattern to use for matching.
 * @param {String} `input` String to match
 * @param {Object} `options` See available [options](#options) for changing how matches are performed
 * @return {Array|null} Returns an array of captures if the input matches the glob pattern, otherwise `null`.
 * @api public
 */

micromatch$1.capture = (glob, input, options) => {
  let posix = utils$b.isWindows(options);
  let regex = picomatch$2.makeRe(String(glob), { ...options, capture: true });
  let match = regex.exec(posix ? utils$b.toPosixSlashes(input) : input);

  if (match) {
    return match.slice(1).map(v => v === void 0 ? '' : v);
  }
};

/**
 * Create a regular expression from the given glob `pattern`.
 *
 * ```js
 * const mm = require('micromatch');
 * // mm.makeRe(pattern[, options]);
 *
 * console.log(mm.makeRe('*.js'));
 * //=> /^(?:(\.[\\\/])?(?!\.)(?=.)[^\/]*?\.js)$/
 * ```
 * @param {String} `pattern` A glob pattern to convert to regex.
 * @param {Object} `options`
 * @return {RegExp} Returns a regex created from the given pattern.
 * @api public
 */

micromatch$1.makeRe = (...args) => picomatch$2.makeRe(...args);

/**
 * Scan a glob pattern to separate the pattern into segments. Used
 * by the [split](#split) method.
 *
 * ```js
 * const mm = require('micromatch');
 * const state = mm.scan(pattern[, options]);
 * ```
 * @param {String} `pattern`
 * @param {Object} `options`
 * @return {Object} Returns an object with
 * @api public
 */

micromatch$1.scan = (...args) => picomatch$2.scan(...args);

/**
 * Parse a glob pattern to create the source string for a regular
 * expression.
 *
 * ```js
 * const mm = require('micromatch');
 * const state = mm(pattern[, options]);
 * ```
 * @param {String} `glob`
 * @param {Object} `options`
 * @return {Object} Returns an object with useful properties and output to be used as regex source string.
 * @api public
 */

micromatch$1.parse = (patterns, options) => {
  let res = [];
  for (let pattern of [].concat(patterns || [])) {
    for (let str of braces$1(String(pattern), options)) {
      res.push(picomatch$2.parse(str, options));
    }
  }
  return res;
};

/**
 * Process the given brace `pattern`.
 *
 * ```js
 * const { braces } = require('micromatch');
 * console.log(braces('foo/{a,b,c}/bar'));
 * //=> [ 'foo/(a|b|c)/bar' ]
 *
 * console.log(braces('foo/{a,b,c}/bar', { expand: true }));
 * //=> [ 'foo/a/bar', 'foo/b/bar', 'foo/c/bar' ]
 * ```
 * @param {String} `pattern` String with brace pattern to process.
 * @param {Object} `options` Any [options](#options) to change how expansion is performed. See the [braces][] library for all available options.
 * @return {Array}
 * @api public
 */

micromatch$1.braces = (pattern, options) => {
  if (typeof pattern !== 'string') throw new TypeError('Expected a string');
  if ((options && options.nobrace === true) || !/\{.*\}/.test(pattern)) {
    return [pattern];
  }
  return braces$1(pattern, options);
};

/**
 * Expand braces
 */

micromatch$1.braceExpand = (pattern, options) => {
  if (typeof pattern !== 'string') throw new TypeError('Expected a string');
  return micromatch$1.braces(pattern, { ...options, expand: true });
};

/**
 * Expose micromatch
 */

var micromatch_1 = micromatch$1;

Object.defineProperty(pattern$1, "__esModule", { value: true });
pattern$1.matchAny = pattern$1.convertPatternsToRe = pattern$1.makeRe = pattern$1.getPatternParts = pattern$1.expandBraceExpansion = pattern$1.expandPatternsWithBraceExpansion = pattern$1.isAffectDepthOfReadingPattern = pattern$1.endsWithSlashGlobStar = pattern$1.hasGlobStar = pattern$1.getBaseDirectory = pattern$1.isPatternRelatedToParentDirectory = pattern$1.getPatternsOutsideCurrentDirectory = pattern$1.getPatternsInsideCurrentDirectory = pattern$1.getPositivePatterns = pattern$1.getNegativePatterns = pattern$1.isPositivePattern = pattern$1.isNegativePattern = pattern$1.convertToNegativePattern = pattern$1.convertToPositivePattern = pattern$1.isDynamicPattern = pattern$1.isStaticPattern = void 0;
const path$o = path__default;
const globParent$1 = globParent$2;
const micromatch = micromatch_1;
const GLOBSTAR$2 = '**';
const ESCAPE_SYMBOL = '\\';
const COMMON_GLOB_SYMBOLS_RE = /[*?]|^!/;
const REGEX_CHARACTER_CLASS_SYMBOLS_RE = /\[.*]/;
const REGEX_GROUP_SYMBOLS_RE = /(?:^|[^!*+?@])\(.*\|.*\)/;
const GLOB_EXTENSION_SYMBOLS_RE = /[!*+?@]\(.*\)/;
const BRACE_EXPANSIONS_SYMBOLS_RE = /{.*(?:,|\.\.).*}/;
function isStaticPattern(pattern, options = {}) {
    return !isDynamicPattern(pattern, options);
}
pattern$1.isStaticPattern = isStaticPattern;
function isDynamicPattern(pattern, options = {}) {
    /**
     * A special case with an empty string is necessary for matching patterns that start with a forward slash.
     * An empty string cannot be a dynamic pattern.
     * For example, the pattern `/lib/*` will be spread into parts: '', 'lib', '*'.
     */
    if (pattern === '') {
        return false;
    }
    /**
     * When the `caseSensitiveMatch` option is disabled, all patterns must be marked as dynamic, because we cannot check
     * filepath directly (without read directory).
     */
    if (options.caseSensitiveMatch === false || pattern.includes(ESCAPE_SYMBOL)) {
        return true;
    }
    if (COMMON_GLOB_SYMBOLS_RE.test(pattern) || REGEX_CHARACTER_CLASS_SYMBOLS_RE.test(pattern) || REGEX_GROUP_SYMBOLS_RE.test(pattern)) {
        return true;
    }
    if (options.extglob !== false && GLOB_EXTENSION_SYMBOLS_RE.test(pattern)) {
        return true;
    }
    if (options.braceExpansion !== false && BRACE_EXPANSIONS_SYMBOLS_RE.test(pattern)) {
        return true;
    }
    return false;
}
pattern$1.isDynamicPattern = isDynamicPattern;
function convertToPositivePattern(pattern) {
    return isNegativePattern(pattern) ? pattern.slice(1) : pattern;
}
pattern$1.convertToPositivePattern = convertToPositivePattern;
function convertToNegativePattern(pattern) {
    return '!' + pattern;
}
pattern$1.convertToNegativePattern = convertToNegativePattern;
function isNegativePattern(pattern) {
    return pattern.startsWith('!') && pattern[1] !== '(';
}
pattern$1.isNegativePattern = isNegativePattern;
function isPositivePattern(pattern) {
    return !isNegativePattern(pattern);
}
pattern$1.isPositivePattern = isPositivePattern;
function getNegativePatterns(patterns) {
    return patterns.filter(isNegativePattern);
}
pattern$1.getNegativePatterns = getNegativePatterns;
function getPositivePatterns$1(patterns) {
    return patterns.filter(isPositivePattern);
}
pattern$1.getPositivePatterns = getPositivePatterns$1;
/**
 * Returns patterns that can be applied inside the current directory.
 *
 * @example
 * // ['./*', '*', 'a/*']
 * getPatternsInsideCurrentDirectory(['./*', '*', 'a/*', '../*', './../*'])
 */
function getPatternsInsideCurrentDirectory(patterns) {
    return patterns.filter((pattern) => !isPatternRelatedToParentDirectory(pattern));
}
pattern$1.getPatternsInsideCurrentDirectory = getPatternsInsideCurrentDirectory;
/**
 * Returns patterns to be expanded relative to (outside) the current directory.
 *
 * @example
 * // ['../*', './../*']
 * getPatternsInsideCurrentDirectory(['./*', '*', 'a/*', '../*', './../*'])
 */
function getPatternsOutsideCurrentDirectory(patterns) {
    return patterns.filter(isPatternRelatedToParentDirectory);
}
pattern$1.getPatternsOutsideCurrentDirectory = getPatternsOutsideCurrentDirectory;
function isPatternRelatedToParentDirectory(pattern) {
    return pattern.startsWith('..') || pattern.startsWith('./..');
}
pattern$1.isPatternRelatedToParentDirectory = isPatternRelatedToParentDirectory;
function getBaseDirectory(pattern) {
    return globParent$1(pattern, { flipBackslashes: false });
}
pattern$1.getBaseDirectory = getBaseDirectory;
function hasGlobStar(pattern) {
    return pattern.includes(GLOBSTAR$2);
}
pattern$1.hasGlobStar = hasGlobStar;
function endsWithSlashGlobStar(pattern) {
    return pattern.endsWith('/' + GLOBSTAR$2);
}
pattern$1.endsWithSlashGlobStar = endsWithSlashGlobStar;
function isAffectDepthOfReadingPattern(pattern) {
    const basename = path$o.basename(pattern);
    return endsWithSlashGlobStar(pattern) || isStaticPattern(basename);
}
pattern$1.isAffectDepthOfReadingPattern = isAffectDepthOfReadingPattern;
function expandPatternsWithBraceExpansion(patterns) {
    return patterns.reduce((collection, pattern) => {
        return collection.concat(expandBraceExpansion(pattern));
    }, []);
}
pattern$1.expandPatternsWithBraceExpansion = expandPatternsWithBraceExpansion;
function expandBraceExpansion(pattern) {
    return micromatch.braces(pattern, {
        expand: true,
        nodupes: true
    });
}
pattern$1.expandBraceExpansion = expandBraceExpansion;
function getPatternParts(pattern, options) {
    let { parts } = micromatch.scan(pattern, Object.assign(Object.assign({}, options), { parts: true }));
    /**
     * The scan method returns an empty array in some cases.
     * See micromatch/picomatch#58 for more details.
     */
    if (parts.length === 0) {
        parts = [pattern];
    }
    /**
     * The scan method does not return an empty part for the pattern with a forward slash.
     * This is another part of micromatch/picomatch#58.
     */
    if (parts[0].startsWith('/')) {
        parts[0] = parts[0].slice(1);
        parts.unshift('');
    }
    return parts;
}
pattern$1.getPatternParts = getPatternParts;
function makeRe$1(pattern, options) {
    return micromatch.makeRe(pattern, options);
}
pattern$1.makeRe = makeRe$1;
function convertPatternsToRe(patterns, options) {
    return patterns.map((pattern) => makeRe$1(pattern, options));
}
pattern$1.convertPatternsToRe = convertPatternsToRe;
function matchAny(entry, patternsRe) {
    return patternsRe.some((patternRe) => patternRe.test(entry));
}
pattern$1.matchAny = matchAny;

var stream$7 = {};

/*
 * merge2
 * https://github.com/teambition/merge2
 *
 * Copyright (c) 2014-2020 Teambition
 * Licensed under the MIT license.
 */
const Stream = require$$0__default$4;
const PassThrough$1 = Stream.PassThrough;
const slice$1 = Array.prototype.slice;

var merge2_1 = merge2$2;

function merge2$2 () {
  const streamsQueue = [];
  const args = slice$1.call(arguments);
  let merging = false;
  let options = args[args.length - 1];

  if (options && !Array.isArray(options) && options.pipe == null) {
    args.pop();
  } else {
    options = {};
  }

  const doEnd = options.end !== false;
  const doPipeError = options.pipeError === true;
  if (options.objectMode == null) {
    options.objectMode = true;
  }
  if (options.highWaterMark == null) {
    options.highWaterMark = 64 * 1024;
  }
  const mergedStream = PassThrough$1(options);

  function addStream () {
    for (let i = 0, len = arguments.length; i < len; i++) {
      streamsQueue.push(pauseStreams(arguments[i], options));
    }
    mergeStream();
    return this
  }

  function mergeStream () {
    if (merging) {
      return
    }
    merging = true;

    let streams = streamsQueue.shift();
    if (!streams) {
      process.nextTick(endStream);
      return
    }
    if (!Array.isArray(streams)) {
      streams = [streams];
    }

    let pipesCount = streams.length + 1;

    function next () {
      if (--pipesCount > 0) {
        return
      }
      merging = false;
      mergeStream();
    }

    function pipe (stream) {
      function onend () {
        stream.removeListener('merge2UnpipeEnd', onend);
        stream.removeListener('end', onend);
        if (doPipeError) {
          stream.removeListener('error', onerror);
        }
        next();
      }
      function onerror (err) {
        mergedStream.emit('error', err);
      }
      // skip ended stream
      if (stream._readableState.endEmitted) {
        return next()
      }

      stream.on('merge2UnpipeEnd', onend);
      stream.on('end', onend);

      if (doPipeError) {
        stream.on('error', onerror);
      }

      stream.pipe(mergedStream, { end: false });
      // compatible for old stream
      stream.resume();
    }

    for (let i = 0; i < streams.length; i++) {
      pipe(streams[i]);
    }

    next();
  }

  function endStream () {
    merging = false;
    // emit 'queueDrain' when all streams merged.
    mergedStream.emit('queueDrain');
    if (doEnd) {
      mergedStream.end();
    }
  }

  mergedStream.setMaxListeners(0);
  mergedStream.add = addStream;
  mergedStream.on('unpipe', function (stream) {
    stream.emit('merge2UnpipeEnd');
  });

  if (args.length) {
    addStream.apply(null, args);
  }
  return mergedStream
}

// check and pause streams for pipe.
function pauseStreams (streams, options) {
  if (!Array.isArray(streams)) {
    // Backwards-compat with old-style streams
    if (!streams._readableState && streams.pipe) {
      streams = streams.pipe(PassThrough$1(options));
    }
    if (!streams._readableState || !streams.pause || !streams.pipe) {
      throw new Error('Only readable stream can be merged.')
    }
    streams.pause();
  } else {
    for (let i = 0, len = streams.length; i < len; i++) {
      streams[i] = pauseStreams(streams[i], options);
    }
  }
  return streams
}

Object.defineProperty(stream$7, "__esModule", { value: true });
stream$7.merge = void 0;
const merge2$1 = merge2_1;
function merge$1(streams) {
    const mergedStream = merge2$1(streams);
    streams.forEach((stream) => {
        stream.once('error', (error) => mergedStream.emit('error', error));
    });
    mergedStream.once('close', () => propagateCloseEventToSources(streams));
    mergedStream.once('end', () => propagateCloseEventToSources(streams));
    return mergedStream;
}
stream$7.merge = merge$1;
function propagateCloseEventToSources(streams) {
    streams.forEach((stream) => stream.emit('close'));
}

var string$2 = {};

Object.defineProperty(string$2, "__esModule", { value: true });
string$2.isEmpty = string$2.isString = void 0;
function isString$1(input) {
    return typeof input === 'string';
}
string$2.isString = isString$1;
function isEmpty(input) {
    return input === '';
}
string$2.isEmpty = isEmpty;

Object.defineProperty(utils$k, "__esModule", { value: true });
utils$k.string = utils$k.stream = utils$k.pattern = utils$k.path = utils$k.fs = utils$k.errno = utils$k.array = void 0;
const array = array$1;
utils$k.array = array;
const errno = errno$1;
utils$k.errno = errno;
const fs$p = fs$q;
utils$k.fs = fs$p;
const path$n = path$s;
utils$k.path = path$n;
const pattern = pattern$1;
utils$k.pattern = pattern;
const stream$6 = stream$7;
utils$k.stream = stream$6;
const string$1 = string$2;
utils$k.string = string$1;

Object.defineProperty(tasks, "__esModule", { value: true });
tasks.convertPatternGroupToTask = tasks.convertPatternGroupsToTasks = tasks.groupPatternsByBaseDirectory = tasks.getNegativePatternsAsPositive = tasks.getPositivePatterns = tasks.convertPatternsToTasks = tasks.generate = void 0;
const utils$a = utils$k;
function generate(patterns, settings) {
    const positivePatterns = getPositivePatterns(patterns);
    const negativePatterns = getNegativePatternsAsPositive(patterns, settings.ignore);
    const staticPatterns = positivePatterns.filter((pattern) => utils$a.pattern.isStaticPattern(pattern, settings));
    const dynamicPatterns = positivePatterns.filter((pattern) => utils$a.pattern.isDynamicPattern(pattern, settings));
    const staticTasks = convertPatternsToTasks(staticPatterns, negativePatterns, /* dynamic */ false);
    const dynamicTasks = convertPatternsToTasks(dynamicPatterns, negativePatterns, /* dynamic */ true);
    return staticTasks.concat(dynamicTasks);
}
tasks.generate = generate;
/**
 * Returns tasks grouped by basic pattern directories.
 *
 * Patterns that can be found inside (`./`) and outside (`../`) the current directory are handled separately.
 * This is necessary because directory traversal starts at the base directory and goes deeper.
 */
function convertPatternsToTasks(positive, negative, dynamic) {
    const tasks = [];
    const patternsOutsideCurrentDirectory = utils$a.pattern.getPatternsOutsideCurrentDirectory(positive);
    const patternsInsideCurrentDirectory = utils$a.pattern.getPatternsInsideCurrentDirectory(positive);
    const outsideCurrentDirectoryGroup = groupPatternsByBaseDirectory(patternsOutsideCurrentDirectory);
    const insideCurrentDirectoryGroup = groupPatternsByBaseDirectory(patternsInsideCurrentDirectory);
    tasks.push(...convertPatternGroupsToTasks(outsideCurrentDirectoryGroup, negative, dynamic));
    /*
     * For the sake of reducing future accesses to the file system, we merge all tasks within the current directory
     * into a global task, if at least one pattern refers to the root (`.`). In this case, the global task covers the rest.
     */
    if ('.' in insideCurrentDirectoryGroup) {
        tasks.push(convertPatternGroupToTask('.', patternsInsideCurrentDirectory, negative, dynamic));
    }
    else {
        tasks.push(...convertPatternGroupsToTasks(insideCurrentDirectoryGroup, negative, dynamic));
    }
    return tasks;
}
tasks.convertPatternsToTasks = convertPatternsToTasks;
function getPositivePatterns(patterns) {
    return utils$a.pattern.getPositivePatterns(patterns);
}
tasks.getPositivePatterns = getPositivePatterns;
function getNegativePatternsAsPositive(patterns, ignore) {
    const negative = utils$a.pattern.getNegativePatterns(patterns).concat(ignore);
    const positive = negative.map(utils$a.pattern.convertToPositivePattern);
    return positive;
}
tasks.getNegativePatternsAsPositive = getNegativePatternsAsPositive;
function groupPatternsByBaseDirectory(patterns) {
    const group = {};
    return patterns.reduce((collection, pattern) => {
        const base = utils$a.pattern.getBaseDirectory(pattern);
        if (base in collection) {
            collection[base].push(pattern);
        }
        else {
            collection[base] = [pattern];
        }
        return collection;
    }, group);
}
tasks.groupPatternsByBaseDirectory = groupPatternsByBaseDirectory;
function convertPatternGroupsToTasks(positive, negative, dynamic) {
    return Object.keys(positive).map((base) => {
        return convertPatternGroupToTask(base, positive[base], negative, dynamic);
    });
}
tasks.convertPatternGroupsToTasks = convertPatternGroupsToTasks;
function convertPatternGroupToTask(base, positive, negative, dynamic) {
    return {
        dynamic,
        positive,
        negative,
        base,
        patterns: [].concat(positive, negative.map(utils$a.pattern.convertToNegativePattern))
    };
}
tasks.convertPatternGroupToTask = convertPatternGroupToTask;

var async$6 = {};

var stream$5 = {};

var out$3 = {};

var async$5 = {};

Object.defineProperty(async$5, "__esModule", { value: true });
async$5.read = void 0;
function read$3(path, settings, callback) {
    settings.fs.lstat(path, (lstatError, lstat) => {
        if (lstatError !== null) {
            callFailureCallback$2(callback, lstatError);
            return;
        }
        if (!lstat.isSymbolicLink() || !settings.followSymbolicLink) {
            callSuccessCallback$2(callback, lstat);
            return;
        }
        settings.fs.stat(path, (statError, stat) => {
            if (statError !== null) {
                if (settings.throwErrorOnBrokenSymbolicLink) {
                    callFailureCallback$2(callback, statError);
                    return;
                }
                callSuccessCallback$2(callback, lstat);
                return;
            }
            if (settings.markSymbolicLink) {
                stat.isSymbolicLink = () => true;
            }
            callSuccessCallback$2(callback, stat);
        });
    });
}
async$5.read = read$3;
function callFailureCallback$2(callback, error) {
    callback(error);
}
function callSuccessCallback$2(callback, result) {
    callback(null, result);
}

var sync$b = {};

Object.defineProperty(sync$b, "__esModule", { value: true });
sync$b.read = void 0;
function read$2(path, settings) {
    const lstat = settings.fs.lstatSync(path);
    if (!lstat.isSymbolicLink() || !settings.followSymbolicLink) {
        return lstat;
    }
    try {
        const stat = settings.fs.statSync(path);
        if (settings.markSymbolicLink) {
            stat.isSymbolicLink = () => true;
        }
        return stat;
    }
    catch (error) {
        if (!settings.throwErrorOnBrokenSymbolicLink) {
            return lstat;
        }
        throw error;
    }
}
sync$b.read = read$2;

var settings$3 = {};

var fs$o = {};

(function (exports) {
Object.defineProperty(exports, "__esModule", { value: true });
exports.createFileSystemAdapter = exports.FILE_SYSTEM_ADAPTER = void 0;
const fs = fs__default;
exports.FILE_SYSTEM_ADAPTER = {
    lstat: fs.lstat,
    stat: fs.stat,
    lstatSync: fs.lstatSync,
    statSync: fs.statSync
};
function createFileSystemAdapter(fsMethods) {
    if (fsMethods === undefined) {
        return exports.FILE_SYSTEM_ADAPTER;
    }
    return Object.assign(Object.assign({}, exports.FILE_SYSTEM_ADAPTER), fsMethods);
}
exports.createFileSystemAdapter = createFileSystemAdapter;
}(fs$o));

Object.defineProperty(settings$3, "__esModule", { value: true });
const fs$n = fs$o;
class Settings$2 {
    constructor(_options = {}) {
        this._options = _options;
        this.followSymbolicLink = this._getValue(this._options.followSymbolicLink, true);
        this.fs = fs$n.createFileSystemAdapter(this._options.fs);
        this.markSymbolicLink = this._getValue(this._options.markSymbolicLink, false);
        this.throwErrorOnBrokenSymbolicLink = this._getValue(this._options.throwErrorOnBrokenSymbolicLink, true);
    }
    _getValue(option, value) {
        return option !== null && option !== void 0 ? option : value;
    }
}
settings$3.default = Settings$2;

Object.defineProperty(out$3, "__esModule", { value: true });
out$3.statSync = out$3.stat = out$3.Settings = void 0;
const async$4 = async$5;
const sync$a = sync$b;
const settings_1$3 = settings$3;
out$3.Settings = settings_1$3.default;
function stat$4(path, optionsOrSettingsOrCallback, callback) {
    if (typeof optionsOrSettingsOrCallback === 'function') {
        async$4.read(path, getSettings$2(), optionsOrSettingsOrCallback);
        return;
    }
    async$4.read(path, getSettings$2(optionsOrSettingsOrCallback), callback);
}
out$3.stat = stat$4;
function statSync(path, optionsOrSettings) {
    const settings = getSettings$2(optionsOrSettings);
    return sync$a.read(path, settings);
}
out$3.statSync = statSync;
function getSettings$2(settingsOrOptions = {}) {
    if (settingsOrOptions instanceof settings_1$3.default) {
        return settingsOrOptions;
    }
    return new settings_1$3.default(settingsOrOptions);
}

var out$2 = {};

var async$3 = {};

var async$2 = {};

var out$1 = {};

var async$1 = {};

/*! queue-microtask. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */

let promise$1;

var queueMicrotask_1 = typeof queueMicrotask === 'function'
  ? queueMicrotask.bind(typeof window !== 'undefined' ? window : commonjsGlobal)
  // reuse resolved promise, and allocate it lazily
  : cb => (promise$1 || (promise$1 = Promise.resolve()))
    .then(cb)
    .catch(err => setTimeout(() => { throw err }, 0));

/*! run-parallel. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */

var runParallel_1 = runParallel;

const queueMicrotask$1 = queueMicrotask_1;

function runParallel (tasks, cb) {
  let results, pending, keys;
  let isSync = true;

  if (Array.isArray(tasks)) {
    results = [];
    pending = tasks.length;
  } else {
    keys = Object.keys(tasks);
    results = {};
    pending = keys.length;
  }

  function done (err) {
    function end () {
      if (cb) cb(err, results);
      cb = null;
    }
    if (isSync) queueMicrotask$1(end);
    else end();
  }

  function each (i, err, result) {
    results[i] = result;
    if (--pending === 0 || err) {
      done(err);
    }
  }

  if (!pending) {
    // empty
    done(null);
  } else if (keys) {
    // object
    keys.forEach(function (key) {
      tasks[key](function (err, result) { each(key, err, result); });
    });
  } else {
    // array
    tasks.forEach(function (task, i) {
      task(function (err, result) { each(i, err, result); });
    });
  }

  isSync = false;
}

var constants$2 = {};

Object.defineProperty(constants$2, "__esModule", { value: true });
constants$2.IS_SUPPORT_READDIR_WITH_FILE_TYPES = void 0;
const NODE_PROCESS_VERSION_PARTS = process.versions.node.split('.');
if (NODE_PROCESS_VERSION_PARTS[0] === undefined || NODE_PROCESS_VERSION_PARTS[1] === undefined) {
    throw new Error(`Unexpected behavior. The 'process.versions.node' variable has invalid value: ${process.versions.node}`);
}
const MAJOR_VERSION = Number.parseInt(NODE_PROCESS_VERSION_PARTS[0], 10);
const MINOR_VERSION = Number.parseInt(NODE_PROCESS_VERSION_PARTS[1], 10);
const SUPPORTED_MAJOR_VERSION = 10;
const SUPPORTED_MINOR_VERSION = 10;
const IS_MATCHED_BY_MAJOR = MAJOR_VERSION > SUPPORTED_MAJOR_VERSION;
const IS_MATCHED_BY_MAJOR_AND_MINOR = MAJOR_VERSION === SUPPORTED_MAJOR_VERSION && MINOR_VERSION >= SUPPORTED_MINOR_VERSION;
/**
 * IS `true` for Node.js 10.10 and greater.
 */
constants$2.IS_SUPPORT_READDIR_WITH_FILE_TYPES = IS_MATCHED_BY_MAJOR || IS_MATCHED_BY_MAJOR_AND_MINOR;

var utils$9 = {};

var fs$m = {};

Object.defineProperty(fs$m, "__esModule", { value: true });
fs$m.createDirentFromStats = void 0;
class DirentFromStats {
    constructor(name, stats) {
        this.name = name;
        this.isBlockDevice = stats.isBlockDevice.bind(stats);
        this.isCharacterDevice = stats.isCharacterDevice.bind(stats);
        this.isDirectory = stats.isDirectory.bind(stats);
        this.isFIFO = stats.isFIFO.bind(stats);
        this.isFile = stats.isFile.bind(stats);
        this.isSocket = stats.isSocket.bind(stats);
        this.isSymbolicLink = stats.isSymbolicLink.bind(stats);
    }
}
function createDirentFromStats(name, stats) {
    return new DirentFromStats(name, stats);
}
fs$m.createDirentFromStats = createDirentFromStats;

Object.defineProperty(utils$9, "__esModule", { value: true });
utils$9.fs = void 0;
const fs$l = fs$m;
utils$9.fs = fs$l;

var common$d = {};

Object.defineProperty(common$d, "__esModule", { value: true });
common$d.joinPathSegments = void 0;
function joinPathSegments$1(a, b, separator) {
    /**
     * The correct handling of cases when the first segment is a root (`/`, `C:/`) or UNC path (`//?/C:/`).
     */
    if (a.endsWith(separator)) {
        return a + b;
    }
    return a + separator + b;
}
common$d.joinPathSegments = joinPathSegments$1;

Object.defineProperty(async$1, "__esModule", { value: true });
async$1.readdir = async$1.readdirWithFileTypes = async$1.read = void 0;
const fsStat$5 = out$3;
const rpl = runParallel_1;
const constants_1$1 = constants$2;
const utils$8 = utils$9;
const common$c = common$d;
function read$1(directory, settings, callback) {
    if (!settings.stats && constants_1$1.IS_SUPPORT_READDIR_WITH_FILE_TYPES) {
        readdirWithFileTypes$1(directory, settings, callback);
        return;
    }
    readdir$3(directory, settings, callback);
}
async$1.read = read$1;
function readdirWithFileTypes$1(directory, settings, callback) {
    settings.fs.readdir(directory, { withFileTypes: true }, (readdirError, dirents) => {
        if (readdirError !== null) {
            callFailureCallback$1(callback, readdirError);
            return;
        }
        const entries = dirents.map((dirent) => ({
            dirent,
            name: dirent.name,
            path: common$c.joinPathSegments(directory, dirent.name, settings.pathSegmentSeparator)
        }));
        if (!settings.followSymbolicLinks) {
            callSuccessCallback$1(callback, entries);
            return;
        }
        const tasks = entries.map((entry) => makeRplTaskEntry(entry, settings));
        rpl(tasks, (rplError, rplEntries) => {
            if (rplError !== null) {
                callFailureCallback$1(callback, rplError);
                return;
            }
            callSuccessCallback$1(callback, rplEntries);
        });
    });
}
async$1.readdirWithFileTypes = readdirWithFileTypes$1;
function makeRplTaskEntry(entry, settings) {
    return (done) => {
        if (!entry.dirent.isSymbolicLink()) {
            done(null, entry);
            return;
        }
        settings.fs.stat(entry.path, (statError, stats) => {
            if (statError !== null) {
                if (settings.throwErrorOnBrokenSymbolicLink) {
                    done(statError);
                    return;
                }
                done(null, entry);
                return;
            }
            entry.dirent = utils$8.fs.createDirentFromStats(entry.name, stats);
            done(null, entry);
        });
    };
}
function readdir$3(directory, settings, callback) {
    settings.fs.readdir(directory, (readdirError, names) => {
        if (readdirError !== null) {
            callFailureCallback$1(callback, readdirError);
            return;
        }
        const tasks = names.map((name) => {
            const path = common$c.joinPathSegments(directory, name, settings.pathSegmentSeparator);
            return (done) => {
                fsStat$5.stat(path, settings.fsStatSettings, (error, stats) => {
                    if (error !== null) {
                        done(error);
                        return;
                    }
                    const entry = {
                        name,
                        path,
                        dirent: utils$8.fs.createDirentFromStats(name, stats)
                    };
                    if (settings.stats) {
                        entry.stats = stats;
                    }
                    done(null, entry);
                });
            };
        });
        rpl(tasks, (rplError, entries) => {
            if (rplError !== null) {
                callFailureCallback$1(callback, rplError);
                return;
            }
            callSuccessCallback$1(callback, entries);
        });
    });
}
async$1.readdir = readdir$3;
function callFailureCallback$1(callback, error) {
    callback(error);
}
function callSuccessCallback$1(callback, result) {
    callback(null, result);
}

var sync$9 = {};

Object.defineProperty(sync$9, "__esModule", { value: true });
sync$9.readdir = sync$9.readdirWithFileTypes = sync$9.read = void 0;
const fsStat$4 = out$3;
const constants_1 = constants$2;
const utils$7 = utils$9;
const common$b = common$d;
function read(directory, settings) {
    if (!settings.stats && constants_1.IS_SUPPORT_READDIR_WITH_FILE_TYPES) {
        return readdirWithFileTypes(directory, settings);
    }
    return readdir$2(directory, settings);
}
sync$9.read = read;
function readdirWithFileTypes(directory, settings) {
    const dirents = settings.fs.readdirSync(directory, { withFileTypes: true });
    return dirents.map((dirent) => {
        const entry = {
            dirent,
            name: dirent.name,
            path: common$b.joinPathSegments(directory, dirent.name, settings.pathSegmentSeparator)
        };
        if (entry.dirent.isSymbolicLink() && settings.followSymbolicLinks) {
            try {
                const stats = settings.fs.statSync(entry.path);
                entry.dirent = utils$7.fs.createDirentFromStats(entry.name, stats);
            }
            catch (error) {
                if (settings.throwErrorOnBrokenSymbolicLink) {
                    throw error;
                }
            }
        }
        return entry;
    });
}
sync$9.readdirWithFileTypes = readdirWithFileTypes;
function readdir$2(directory, settings) {
    const names = settings.fs.readdirSync(directory);
    return names.map((name) => {
        const entryPath = common$b.joinPathSegments(directory, name, settings.pathSegmentSeparator);
        const stats = fsStat$4.statSync(entryPath, settings.fsStatSettings);
        const entry = {
            name,
            path: entryPath,
            dirent: utils$7.fs.createDirentFromStats(name, stats)
        };
        if (settings.stats) {
            entry.stats = stats;
        }
        return entry;
    });
}
sync$9.readdir = readdir$2;

var settings$2 = {};

var fs$k = {};

(function (exports) {
Object.defineProperty(exports, "__esModule", { value: true });
exports.createFileSystemAdapter = exports.FILE_SYSTEM_ADAPTER = void 0;
const fs = fs__default;
exports.FILE_SYSTEM_ADAPTER = {
    lstat: fs.lstat,
    stat: fs.stat,
    lstatSync: fs.lstatSync,
    statSync: fs.statSync,
    readdir: fs.readdir,
    readdirSync: fs.readdirSync
};
function createFileSystemAdapter(fsMethods) {
    if (fsMethods === undefined) {
        return exports.FILE_SYSTEM_ADAPTER;
    }
    return Object.assign(Object.assign({}, exports.FILE_SYSTEM_ADAPTER), fsMethods);
}
exports.createFileSystemAdapter = createFileSystemAdapter;
}(fs$k));

Object.defineProperty(settings$2, "__esModule", { value: true });
const path$m = path__default;
const fsStat$3 = out$3;
const fs$j = fs$k;
class Settings$1 {
    constructor(_options = {}) {
        this._options = _options;
        this.followSymbolicLinks = this._getValue(this._options.followSymbolicLinks, false);
        this.fs = fs$j.createFileSystemAdapter(this._options.fs);
        this.pathSegmentSeparator = this._getValue(this._options.pathSegmentSeparator, path$m.sep);
        this.stats = this._getValue(this._options.stats, false);
        this.throwErrorOnBrokenSymbolicLink = this._getValue(this._options.throwErrorOnBrokenSymbolicLink, true);
        this.fsStatSettings = new fsStat$3.Settings({
            followSymbolicLink: this.followSymbolicLinks,
            fs: this.fs,
            throwErrorOnBrokenSymbolicLink: this.throwErrorOnBrokenSymbolicLink
        });
    }
    _getValue(option, value) {
        return option !== null && option !== void 0 ? option : value;
    }
}
settings$2.default = Settings$1;

Object.defineProperty(out$1, "__esModule", { value: true });
out$1.Settings = out$1.scandirSync = out$1.scandir = void 0;
const async = async$1;
const sync$8 = sync$9;
const settings_1$2 = settings$2;
out$1.Settings = settings_1$2.default;
function scandir(path, optionsOrSettingsOrCallback, callback) {
    if (typeof optionsOrSettingsOrCallback === 'function') {
        async.read(path, getSettings$1(), optionsOrSettingsOrCallback);
        return;
    }
    async.read(path, getSettings$1(optionsOrSettingsOrCallback), callback);
}
out$1.scandir = scandir;
function scandirSync(path, optionsOrSettings) {
    const settings = getSettings$1(optionsOrSettings);
    return sync$8.read(path, settings);
}
out$1.scandirSync = scandirSync;
function getSettings$1(settingsOrOptions = {}) {
    if (settingsOrOptions instanceof settings_1$2.default) {
        return settingsOrOptions;
    }
    return new settings_1$2.default(settingsOrOptions);
}

var queue = {exports: {}};

function reusify$1 (Constructor) {
  var head = new Constructor();
  var tail = head;

  function get () {
    var current = head;

    if (current.next) {
      head = current.next;
    } else {
      head = new Constructor();
      tail = head;
    }

    current.next = null;

    return current
  }

  function release (obj) {
    tail.next = obj;
    tail = obj;
  }

  return {
    get: get,
    release: release
  }
}

var reusify_1 = reusify$1;

/* eslint-disable no-var */

var reusify = reusify_1;

function fastqueue (context, worker, concurrency) {
  if (typeof context === 'function') {
    concurrency = worker;
    worker = context;
    context = null;
  }

  if (concurrency < 1) {
    throw new Error('fastqueue concurrency must be greater than 1')
  }

  var cache = reusify(Task);
  var queueHead = null;
  var queueTail = null;
  var _running = 0;
  var errorHandler = null;

  var self = {
    push: push,
    drain: noop$3,
    saturated: noop$3,
    pause: pause,
    paused: false,
    concurrency: concurrency,
    running: running,
    resume: resume,
    idle: idle,
    length: length,
    getQueue: getQueue,
    unshift: unshift,
    empty: noop$3,
    kill: kill,
    killAndDrain: killAndDrain,
    error: error
  };

  return self

  function running () {
    return _running
  }

  function pause () {
    self.paused = true;
  }

  function length () {
    var current = queueHead;
    var counter = 0;

    while (current) {
      current = current.next;
      counter++;
    }

    return counter
  }

  function getQueue () {
    var current = queueHead;
    var tasks = [];

    while (current) {
      tasks.push(current.value);
      current = current.next;
    }

    return tasks
  }

  function resume () {
    if (!self.paused) return
    self.paused = false;
    for (var i = 0; i < self.concurrency; i++) {
      _running++;
      release();
    }
  }

  function idle () {
    return _running === 0 && self.length() === 0
  }

  function push (value, done) {
    var current = cache.get();

    current.context = context;
    current.release = release;
    current.value = value;
    current.callback = done || noop$3;
    current.errorHandler = errorHandler;

    if (_running === self.concurrency || self.paused) {
      if (queueTail) {
        queueTail.next = current;
        queueTail = current;
      } else {
        queueHead = current;
        queueTail = current;
        self.saturated();
      }
    } else {
      _running++;
      worker.call(context, current.value, current.worked);
    }
  }

  function unshift (value, done) {
    var current = cache.get();

    current.context = context;
    current.release = release;
    current.value = value;
    current.callback = done || noop$3;

    if (_running === self.concurrency || self.paused) {
      if (queueHead) {
        current.next = queueHead;
        queueHead = current;
      } else {
        queueHead = current;
        queueTail = current;
        self.saturated();
      }
    } else {
      _running++;
      worker.call(context, current.value, current.worked);
    }
  }

  function release (holder) {
    if (holder) {
      cache.release(holder);
    }
    var next = queueHead;
    if (next) {
      if (!self.paused) {
        if (queueTail === queueHead) {
          queueTail = null;
        }
        queueHead = next.next;
        next.next = null;
        worker.call(context, next.value, next.worked);
        if (queueTail === null) {
          self.empty();
        }
      } else {
        _running--;
      }
    } else if (--_running === 0) {
      self.drain();
    }
  }

  function kill () {
    queueHead = null;
    queueTail = null;
    self.drain = noop$3;
  }

  function killAndDrain () {
    queueHead = null;
    queueTail = null;
    self.drain();
    self.drain = noop$3;
  }

  function error (handler) {
    errorHandler = handler;
  }
}

function noop$3 () {}

function Task () {
  this.value = null;
  this.callback = noop$3;
  this.next = null;
  this.release = noop$3;
  this.context = null;
  this.errorHandler = null;

  var self = this;

  this.worked = function worked (err, result) {
    var callback = self.callback;
    var errorHandler = self.errorHandler;
    var val = self.value;
    self.value = null;
    self.callback = noop$3;
    if (self.errorHandler) {
      errorHandler(err, val);
    }
    callback.call(self.context, err, result);
    self.release(self);
  };
}

function queueAsPromised (context, worker, concurrency) {
  if (typeof context === 'function') {
    concurrency = worker;
    worker = context;
    context = null;
  }

  function asyncWrapper (arg, cb) {
    worker.call(this, arg)
      .then(function (res) {
        cb(null, res);
      }, cb);
  }

  var queue = fastqueue(context, asyncWrapper, concurrency);

  var pushCb = queue.push;
  var unshiftCb = queue.unshift;

  queue.push = push;
  queue.unshift = unshift;
  queue.drained = drained;

  return queue

  function push (value) {
    var p = new Promise(function (resolve, reject) {
      pushCb(value, function (err, result) {
        if (err) {
          reject(err);
          return
        }
        resolve(result);
      });
    });

    // Let's fork the promise chain to
    // make the error bubble up to the user but
    // not lead to a unhandledRejection
    p.catch(noop$3);

    return p
  }

  function unshift (value) {
    var p = new Promise(function (resolve, reject) {
      unshiftCb(value, function (err, result) {
        if (err) {
          reject(err);
          return
        }
        resolve(result);
      });
    });

    // Let's fork the promise chain to
    // make the error bubble up to the user but
    // not lead to a unhandledRejection
    p.catch(noop$3);

    return p
  }

  function drained () {
    var previousDrain = queue.drain;

    var p = new Promise(function (resolve) {
      queue.drain = function () {
        previousDrain();
        resolve();
      };
    });

    return p
  }
}

queue.exports = fastqueue;
queue.exports.promise = queueAsPromised;

var common$a = {};

Object.defineProperty(common$a, "__esModule", { value: true });
common$a.joinPathSegments = common$a.replacePathSegmentSeparator = common$a.isAppliedFilter = common$a.isFatalError = void 0;
function isFatalError(settings, error) {
    if (settings.errorFilter === null) {
        return true;
    }
    return !settings.errorFilter(error);
}
common$a.isFatalError = isFatalError;
function isAppliedFilter(filter, value) {
    return filter === null || filter(value);
}
common$a.isAppliedFilter = isAppliedFilter;
function replacePathSegmentSeparator(filepath, separator) {
    return filepath.split(/[/\\]/).join(separator);
}
common$a.replacePathSegmentSeparator = replacePathSegmentSeparator;
function joinPathSegments(a, b, separator) {
    if (a === '') {
        return b;
    }
    /**
     * The correct handling of cases when the first segment is a root (`/`, `C:/`) or UNC path (`//?/C:/`).
     */
    if (a.endsWith(separator)) {
        return a + b;
    }
    return a + separator + b;
}
common$a.joinPathSegments = joinPathSegments;

var reader$1 = {};

Object.defineProperty(reader$1, "__esModule", { value: true });
const common$9 = common$a;
class Reader$1 {
    constructor(_root, _settings) {
        this._root = _root;
        this._settings = _settings;
        this._root = common$9.replacePathSegmentSeparator(_root, _settings.pathSegmentSeparator);
    }
}
reader$1.default = Reader$1;

Object.defineProperty(async$2, "__esModule", { value: true });
const events_1 = require$$0__default$5;
const fsScandir$2 = out$1;
const fastq = queue.exports;
const common$8 = common$a;
const reader_1$3 = reader$1;
class AsyncReader extends reader_1$3.default {
    constructor(_root, _settings) {
        super(_root, _settings);
        this._settings = _settings;
        this._scandir = fsScandir$2.scandir;
        this._emitter = new events_1.EventEmitter();
        this._queue = fastq(this._worker.bind(this), this._settings.concurrency);
        this._isFatalError = false;
        this._isDestroyed = false;
        this._queue.drain = () => {
            if (!this._isFatalError) {
                this._emitter.emit('end');
            }
        };
    }
    read() {
        this._isFatalError = false;
        this._isDestroyed = false;
        setImmediate(() => {
            this._pushToQueue(this._root, this._settings.basePath);
        });
        return this._emitter;
    }
    get isDestroyed() {
        return this._isDestroyed;
    }
    destroy() {
        if (this._isDestroyed) {
            throw new Error('The reader is already destroyed');
        }
        this._isDestroyed = true;
        this._queue.killAndDrain();
    }
    onEntry(callback) {
        this._emitter.on('entry', callback);
    }
    onError(callback) {
        this._emitter.once('error', callback);
    }
    onEnd(callback) {
        this._emitter.once('end', callback);
    }
    _pushToQueue(directory, base) {
        const queueItem = { directory, base };
        this._queue.push(queueItem, (error) => {
            if (error !== null) {
                this._handleError(error);
            }
        });
    }
    _worker(item, done) {
        this._scandir(item.directory, this._settings.fsScandirSettings, (error, entries) => {
            if (error !== null) {
                done(error, undefined);
                return;
            }
            for (const entry of entries) {
                this._handleEntry(entry, item.base);
            }
            done(null, undefined);
        });
    }
    _handleError(error) {
        if (this._isDestroyed || !common$8.isFatalError(this._settings, error)) {
            return;
        }
        this._isFatalError = true;
        this._isDestroyed = true;
        this._emitter.emit('error', error);
    }
    _handleEntry(entry, base) {
        if (this._isDestroyed || this._isFatalError) {
            return;
        }
        const fullpath = entry.path;
        if (base !== undefined) {
            entry.path = common$8.joinPathSegments(base, entry.name, this._settings.pathSegmentSeparator);
        }
        if (common$8.isAppliedFilter(this._settings.entryFilter, entry)) {
            this._emitEntry(entry);
        }
        if (entry.dirent.isDirectory() && common$8.isAppliedFilter(this._settings.deepFilter, entry)) {
            this._pushToQueue(fullpath, base === undefined ? undefined : entry.path);
        }
    }
    _emitEntry(entry) {
        this._emitter.emit('entry', entry);
    }
}
async$2.default = AsyncReader;

Object.defineProperty(async$3, "__esModule", { value: true });
const async_1$3 = async$2;
class AsyncProvider {
    constructor(_root, _settings) {
        this._root = _root;
        this._settings = _settings;
        this._reader = new async_1$3.default(this._root, this._settings);
        this._storage = [];
    }
    read(callback) {
        this._reader.onError((error) => {
            callFailureCallback(callback, error);
        });
        this._reader.onEntry((entry) => {
            this._storage.push(entry);
        });
        this._reader.onEnd(() => {
            callSuccessCallback(callback, this._storage);
        });
        this._reader.read();
    }
}
async$3.default = AsyncProvider;
function callFailureCallback(callback, error) {
    callback(error);
}
function callSuccessCallback(callback, entries) {
    callback(null, entries);
}

var stream$4 = {};

Object.defineProperty(stream$4, "__esModule", { value: true });
const stream_1$5 = require$$0__default$4;
const async_1$2 = async$2;
class StreamProvider {
    constructor(_root, _settings) {
        this._root = _root;
        this._settings = _settings;
        this._reader = new async_1$2.default(this._root, this._settings);
        this._stream = new stream_1$5.Readable({
            objectMode: true,
            read: () => { },
            destroy: () => {
                if (!this._reader.isDestroyed) {
                    this._reader.destroy();
                }
            }
        });
    }
    read() {
        this._reader.onError((error) => {
            this._stream.emit('error', error);
        });
        this._reader.onEntry((entry) => {
            this._stream.push(entry);
        });
        this._reader.onEnd(() => {
            this._stream.push(null);
        });
        this._reader.read();
        return this._stream;
    }
}
stream$4.default = StreamProvider;

var sync$7 = {};

var sync$6 = {};

Object.defineProperty(sync$6, "__esModule", { value: true });
const fsScandir$1 = out$1;
const common$7 = common$a;
const reader_1$2 = reader$1;
class SyncReader extends reader_1$2.default {
    constructor() {
        super(...arguments);
        this._scandir = fsScandir$1.scandirSync;
        this._storage = [];
        this._queue = new Set();
    }
    read() {
        this._pushToQueue(this._root, this._settings.basePath);
        this._handleQueue();
        return this._storage;
    }
    _pushToQueue(directory, base) {
        this._queue.add({ directory, base });
    }
    _handleQueue() {
        for (const item of this._queue.values()) {
            this._handleDirectory(item.directory, item.base);
        }
    }
    _handleDirectory(directory, base) {
        try {
            const entries = this._scandir(directory, this._settings.fsScandirSettings);
            for (const entry of entries) {
                this._handleEntry(entry, base);
            }
        }
        catch (error) {
            this._handleError(error);
        }
    }
    _handleError(error) {
        if (!common$7.isFatalError(this._settings, error)) {
            return;
        }
        throw error;
    }
    _handleEntry(entry, base) {
        const fullpath = entry.path;
        if (base !== undefined) {
            entry.path = common$7.joinPathSegments(base, entry.name, this._settings.pathSegmentSeparator);
        }
        if (common$7.isAppliedFilter(this._settings.entryFilter, entry)) {
            this._pushToStorage(entry);
        }
        if (entry.dirent.isDirectory() && common$7.isAppliedFilter(this._settings.deepFilter, entry)) {
            this._pushToQueue(fullpath, base === undefined ? undefined : entry.path);
        }
    }
    _pushToStorage(entry) {
        this._storage.push(entry);
    }
}
sync$6.default = SyncReader;

Object.defineProperty(sync$7, "__esModule", { value: true });
const sync_1$3 = sync$6;
class SyncProvider {
    constructor(_root, _settings) {
        this._root = _root;
        this._settings = _settings;
        this._reader = new sync_1$3.default(this._root, this._settings);
    }
    read() {
        return this._reader.read();
    }
}
sync$7.default = SyncProvider;

var settings$1 = {};

Object.defineProperty(settings$1, "__esModule", { value: true });
const path$l = path__default;
const fsScandir = out$1;
class Settings {
    constructor(_options = {}) {
        this._options = _options;
        this.basePath = this._getValue(this._options.basePath, undefined);
        this.concurrency = this._getValue(this._options.concurrency, Number.POSITIVE_INFINITY);
        this.deepFilter = this._getValue(this._options.deepFilter, null);
        this.entryFilter = this._getValue(this._options.entryFilter, null);
        this.errorFilter = this._getValue(this._options.errorFilter, null);
        this.pathSegmentSeparator = this._getValue(this._options.pathSegmentSeparator, path$l.sep);
        this.fsScandirSettings = new fsScandir.Settings({
            followSymbolicLinks: this._options.followSymbolicLinks,
            fs: this._options.fs,
            pathSegmentSeparator: this._options.pathSegmentSeparator,
            stats: this._options.stats,
            throwErrorOnBrokenSymbolicLink: this._options.throwErrorOnBrokenSymbolicLink
        });
    }
    _getValue(option, value) {
        return option !== null && option !== void 0 ? option : value;
    }
}
settings$1.default = Settings;

Object.defineProperty(out$2, "__esModule", { value: true });
out$2.Settings = out$2.walkStream = out$2.walkSync = out$2.walk = void 0;
const async_1$1 = async$3;
const stream_1$4 = stream$4;
const sync_1$2 = sync$7;
const settings_1$1 = settings$1;
out$2.Settings = settings_1$1.default;
function walk$3(directory, optionsOrSettingsOrCallback, callback) {
    if (typeof optionsOrSettingsOrCallback === 'function') {
        new async_1$1.default(directory, getSettings()).read(optionsOrSettingsOrCallback);
        return;
    }
    new async_1$1.default(directory, getSettings(optionsOrSettingsOrCallback)).read(callback);
}
out$2.walk = walk$3;
function walkSync(directory, optionsOrSettings) {
    const settings = getSettings(optionsOrSettings);
    const provider = new sync_1$2.default(directory, settings);
    return provider.read();
}
out$2.walkSync = walkSync;
function walkStream(directory, optionsOrSettings) {
    const settings = getSettings(optionsOrSettings);
    const provider = new stream_1$4.default(directory, settings);
    return provider.read();
}
out$2.walkStream = walkStream;
function getSettings(settingsOrOptions = {}) {
    if (settingsOrOptions instanceof settings_1$1.default) {
        return settingsOrOptions;
    }
    return new settings_1$1.default(settingsOrOptions);
}

var reader = {};

Object.defineProperty(reader, "__esModule", { value: true });
const path$k = path__default;
const fsStat$2 = out$3;
const utils$6 = utils$k;
class Reader {
    constructor(_settings) {
        this._settings = _settings;
        this._fsStatSettings = new fsStat$2.Settings({
            followSymbolicLink: this._settings.followSymbolicLinks,
            fs: this._settings.fs,
            throwErrorOnBrokenSymbolicLink: this._settings.followSymbolicLinks
        });
    }
    _getFullEntryPath(filepath) {
        return path$k.resolve(this._settings.cwd, filepath);
    }
    _makeEntry(stats, pattern) {
        const entry = {
            name: pattern,
            path: pattern,
            dirent: utils$6.fs.createDirentFromStats(pattern, stats)
        };
        if (this._settings.stats) {
            entry.stats = stats;
        }
        return entry;
    }
    _isFatalError(error) {
        return !utils$6.errno.isEnoentCodeError(error) && !this._settings.suppressErrors;
    }
}
reader.default = Reader;

Object.defineProperty(stream$5, "__esModule", { value: true });
const stream_1$3 = require$$0__default$4;
const fsStat$1 = out$3;
const fsWalk$1 = out$2;
const reader_1$1 = reader;
class ReaderStream extends reader_1$1.default {
    constructor() {
        super(...arguments);
        this._walkStream = fsWalk$1.walkStream;
        this._stat = fsStat$1.stat;
    }
    dynamic(root, options) {
        return this._walkStream(root, options);
    }
    static(patterns, options) {
        const filepaths = patterns.map(this._getFullEntryPath, this);
        const stream = new stream_1$3.PassThrough({ objectMode: true });
        stream._write = (index, _enc, done) => {
            return this._getEntry(filepaths[index], patterns[index], options)
                .then((entry) => {
                if (entry !== null && options.entryFilter(entry)) {
                    stream.push(entry);
                }
                if (index === filepaths.length - 1) {
                    stream.end();
                }
                done();
            })
                .catch(done);
        };
        for (let i = 0; i < filepaths.length; i++) {
            stream.write(i);
        }
        return stream;
    }
    _getEntry(filepath, pattern, options) {
        return this._getStat(filepath)
            .then((stats) => this._makeEntry(stats, pattern))
            .catch((error) => {
            if (options.errorFilter(error)) {
                return null;
            }
            throw error;
        });
    }
    _getStat(filepath) {
        return new Promise((resolve, reject) => {
            this._stat(filepath, this._fsStatSettings, (error, stats) => {
                return error === null ? resolve(stats) : reject(error);
            });
        });
    }
}
stream$5.default = ReaderStream;

var provider = {};

var deep = {};

var partial = {};

var matcher = {};

Object.defineProperty(matcher, "__esModule", { value: true });
const utils$5 = utils$k;
class Matcher {
    constructor(_patterns, _settings, _micromatchOptions) {
        this._patterns = _patterns;
        this._settings = _settings;
        this._micromatchOptions = _micromatchOptions;
        this._storage = [];
        this._fillStorage();
    }
    _fillStorage() {
        /**
         * The original pattern may include `{,*,**,a/*}`, which will lead to problems with matching (unresolved level).
         * So, before expand patterns with brace expansion into separated patterns.
         */
        const patterns = utils$5.pattern.expandPatternsWithBraceExpansion(this._patterns);
        for (const pattern of patterns) {
            const segments = this._getPatternSegments(pattern);
            const sections = this._splitSegmentsIntoSections(segments);
            this._storage.push({
                complete: sections.length <= 1,
                pattern,
                segments,
                sections
            });
        }
    }
    _getPatternSegments(pattern) {
        const parts = utils$5.pattern.getPatternParts(pattern, this._micromatchOptions);
        return parts.map((part) => {
            const dynamic = utils$5.pattern.isDynamicPattern(part, this._settings);
            if (!dynamic) {
                return {
                    dynamic: false,
                    pattern: part
                };
            }
            return {
                dynamic: true,
                pattern: part,
                patternRe: utils$5.pattern.makeRe(part, this._micromatchOptions)
            };
        });
    }
    _splitSegmentsIntoSections(segments) {
        return utils$5.array.splitWhen(segments, (segment) => segment.dynamic && utils$5.pattern.hasGlobStar(segment.pattern));
    }
}
matcher.default = Matcher;

Object.defineProperty(partial, "__esModule", { value: true });
const matcher_1 = matcher;
class PartialMatcher extends matcher_1.default {
    match(filepath) {
        const parts = filepath.split('/');
        const levels = parts.length;
        const patterns = this._storage.filter((info) => !info.complete || info.segments.length > levels);
        for (const pattern of patterns) {
            const section = pattern.sections[0];
            /**
             * In this case, the pattern has a globstar and we must read all directories unconditionally,
             * but only if the level has reached the end of the first group.
             *
             * fixtures/{a,b}/**
             *  ^ true/false  ^ always true
            */
            if (!pattern.complete && levels > section.length) {
                return true;
            }
            const match = parts.every((part, index) => {
                const segment = pattern.segments[index];
                if (segment.dynamic && segment.patternRe.test(part)) {
                    return true;
                }
                if (!segment.dynamic && segment.pattern === part) {
                    return true;
                }
                return false;
            });
            if (match) {
                return true;
            }
        }
        return false;
    }
}
partial.default = PartialMatcher;

Object.defineProperty(deep, "__esModule", { value: true });
const utils$4 = utils$k;
const partial_1 = partial;
class DeepFilter {
    constructor(_settings, _micromatchOptions) {
        this._settings = _settings;
        this._micromatchOptions = _micromatchOptions;
    }
    getFilter(basePath, positive, negative) {
        const matcher = this._getMatcher(positive);
        const negativeRe = this._getNegativePatternsRe(negative);
        return (entry) => this._filter(basePath, entry, matcher, negativeRe);
    }
    _getMatcher(patterns) {
        return new partial_1.default(patterns, this._settings, this._micromatchOptions);
    }
    _getNegativePatternsRe(patterns) {
        const affectDepthOfReadingPatterns = patterns.filter(utils$4.pattern.isAffectDepthOfReadingPattern);
        return utils$4.pattern.convertPatternsToRe(affectDepthOfReadingPatterns, this._micromatchOptions);
    }
    _filter(basePath, entry, matcher, negativeRe) {
        if (this._isSkippedByDeep(basePath, entry.path)) {
            return false;
        }
        if (this._isSkippedSymbolicLink(entry)) {
            return false;
        }
        const filepath = utils$4.path.removeLeadingDotSegment(entry.path);
        if (this._isSkippedByPositivePatterns(filepath, matcher)) {
            return false;
        }
        return this._isSkippedByNegativePatterns(filepath, negativeRe);
    }
    _isSkippedByDeep(basePath, entryPath) {
        /**
         * Avoid unnecessary depth calculations when it doesn't matter.
         */
        if (this._settings.deep === Infinity) {
            return false;
        }
        return this._getEntryLevel(basePath, entryPath) >= this._settings.deep;
    }
    _getEntryLevel(basePath, entryPath) {
        const entryPathDepth = entryPath.split('/').length;
        if (basePath === '') {
            return entryPathDepth;
        }
        const basePathDepth = basePath.split('/').length;
        return entryPathDepth - basePathDepth;
    }
    _isSkippedSymbolicLink(entry) {
        return !this._settings.followSymbolicLinks && entry.dirent.isSymbolicLink();
    }
    _isSkippedByPositivePatterns(entryPath, matcher) {
        return !this._settings.baseNameMatch && !matcher.match(entryPath);
    }
    _isSkippedByNegativePatterns(entryPath, patternsRe) {
        return !utils$4.pattern.matchAny(entryPath, patternsRe);
    }
}
deep.default = DeepFilter;

var entry$1 = {};

Object.defineProperty(entry$1, "__esModule", { value: true });
const utils$3 = utils$k;
class EntryFilter {
    constructor(_settings, _micromatchOptions) {
        this._settings = _settings;
        this._micromatchOptions = _micromatchOptions;
        this.index = new Map();
    }
    getFilter(positive, negative) {
        const positiveRe = utils$3.pattern.convertPatternsToRe(positive, this._micromatchOptions);
        const negativeRe = utils$3.pattern.convertPatternsToRe(negative, this._micromatchOptions);
        return (entry) => this._filter(entry, positiveRe, negativeRe);
    }
    _filter(entry, positiveRe, negativeRe) {
        if (this._settings.unique && this._isDuplicateEntry(entry)) {
            return false;
        }
        if (this._onlyFileFilter(entry) || this._onlyDirectoryFilter(entry)) {
            return false;
        }
        if (this._isSkippedByAbsoluteNegativePatterns(entry.path, negativeRe)) {
            return false;
        }
        const filepath = this._settings.baseNameMatch ? entry.name : entry.path;
        const isMatched = this._isMatchToPatterns(filepath, positiveRe) && !this._isMatchToPatterns(entry.path, negativeRe);
        if (this._settings.unique && isMatched) {
            this._createIndexRecord(entry);
        }
        return isMatched;
    }
    _isDuplicateEntry(entry) {
        return this.index.has(entry.path);
    }
    _createIndexRecord(entry) {
        this.index.set(entry.path, undefined);
    }
    _onlyFileFilter(entry) {
        return this._settings.onlyFiles && !entry.dirent.isFile();
    }
    _onlyDirectoryFilter(entry) {
        return this._settings.onlyDirectories && !entry.dirent.isDirectory();
    }
    _isSkippedByAbsoluteNegativePatterns(entryPath, patternsRe) {
        if (!this._settings.absolute) {
            return false;
        }
        const fullpath = utils$3.path.makeAbsolute(this._settings.cwd, entryPath);
        return utils$3.pattern.matchAny(fullpath, patternsRe);
    }
    _isMatchToPatterns(entryPath, patternsRe) {
        const filepath = utils$3.path.removeLeadingDotSegment(entryPath);
        return utils$3.pattern.matchAny(filepath, patternsRe);
    }
}
entry$1.default = EntryFilter;

var error$4 = {};

Object.defineProperty(error$4, "__esModule", { value: true });
const utils$2 = utils$k;
class ErrorFilter {
    constructor(_settings) {
        this._settings = _settings;
    }
    getFilter() {
        return (error) => this._isNonFatalError(error);
    }
    _isNonFatalError(error) {
        return utils$2.errno.isEnoentCodeError(error) || this._settings.suppressErrors;
    }
}
error$4.default = ErrorFilter;

var entry = {};

Object.defineProperty(entry, "__esModule", { value: true });
const utils$1 = utils$k;
class EntryTransformer {
    constructor(_settings) {
        this._settings = _settings;
    }
    getTransformer() {
        return (entry) => this._transform(entry);
    }
    _transform(entry) {
        let filepath = entry.path;
        if (this._settings.absolute) {
            filepath = utils$1.path.makeAbsolute(this._settings.cwd, filepath);
            filepath = utils$1.path.unixify(filepath);
        }
        if (this._settings.markDirectories && entry.dirent.isDirectory()) {
            filepath += '/';
        }
        if (!this._settings.objectMode) {
            return filepath;
        }
        return Object.assign(Object.assign({}, entry), { path: filepath });
    }
}
entry.default = EntryTransformer;

Object.defineProperty(provider, "__esModule", { value: true });
const path$j = path__default;
const deep_1 = deep;
const entry_1 = entry$1;
const error_1 = error$4;
const entry_2 = entry;
class Provider {
    constructor(_settings) {
        this._settings = _settings;
        this.errorFilter = new error_1.default(this._settings);
        this.entryFilter = new entry_1.default(this._settings, this._getMicromatchOptions());
        this.deepFilter = new deep_1.default(this._settings, this._getMicromatchOptions());
        this.entryTransformer = new entry_2.default(this._settings);
    }
    _getRootDirectory(task) {
        return path$j.resolve(this._settings.cwd, task.base);
    }
    _getReaderOptions(task) {
        const basePath = task.base === '.' ? '' : task.base;
        return {
            basePath,
            pathSegmentSeparator: '/',
            concurrency: this._settings.concurrency,
            deepFilter: this.deepFilter.getFilter(basePath, task.positive, task.negative),
            entryFilter: this.entryFilter.getFilter(task.positive, task.negative),
            errorFilter: this.errorFilter.getFilter(),
            followSymbolicLinks: this._settings.followSymbolicLinks,
            fs: this._settings.fs,
            stats: this._settings.stats,
            throwErrorOnBrokenSymbolicLink: this._settings.throwErrorOnBrokenSymbolicLink,
            transform: this.entryTransformer.getTransformer()
        };
    }
    _getMicromatchOptions() {
        return {
            dot: this._settings.dot,
            matchBase: this._settings.baseNameMatch,
            nobrace: !this._settings.braceExpansion,
            nocase: !this._settings.caseSensitiveMatch,
            noext: !this._settings.extglob,
            noglobstar: !this._settings.globstar,
            posix: true,
            strictSlashes: false
        };
    }
}
provider.default = Provider;

Object.defineProperty(async$6, "__esModule", { value: true });
const stream_1$2 = stream$5;
const provider_1$2 = provider;
class ProviderAsync extends provider_1$2.default {
    constructor() {
        super(...arguments);
        this._reader = new stream_1$2.default(this._settings);
    }
    read(task) {
        const root = this._getRootDirectory(task);
        const options = this._getReaderOptions(task);
        const entries = [];
        return new Promise((resolve, reject) => {
            const stream = this.api(root, task, options);
            stream.once('error', reject);
            stream.on('data', (entry) => entries.push(options.transform(entry)));
            stream.once('end', () => resolve(entries));
        });
    }
    api(root, task, options) {
        if (task.dynamic) {
            return this._reader.dynamic(root, options);
        }
        return this._reader.static(task.patterns, options);
    }
}
async$6.default = ProviderAsync;

var stream$3 = {};

Object.defineProperty(stream$3, "__esModule", { value: true });
const stream_1$1 = require$$0__default$4;
const stream_2 = stream$5;
const provider_1$1 = provider;
class ProviderStream extends provider_1$1.default {
    constructor() {
        super(...arguments);
        this._reader = new stream_2.default(this._settings);
    }
    read(task) {
        const root = this._getRootDirectory(task);
        const options = this._getReaderOptions(task);
        const source = this.api(root, task, options);
        const destination = new stream_1$1.Readable({ objectMode: true, read: () => { } });
        source
            .once('error', (error) => destination.emit('error', error))
            .on('data', (entry) => destination.emit('data', options.transform(entry)))
            .once('end', () => destination.emit('end'));
        destination
            .once('close', () => source.destroy());
        return destination;
    }
    api(root, task, options) {
        if (task.dynamic) {
            return this._reader.dynamic(root, options);
        }
        return this._reader.static(task.patterns, options);
    }
}
stream$3.default = ProviderStream;

var sync$5 = {};

var sync$4 = {};

Object.defineProperty(sync$4, "__esModule", { value: true });
const fsStat = out$3;
const fsWalk = out$2;
const reader_1 = reader;
class ReaderSync extends reader_1.default {
    constructor() {
        super(...arguments);
        this._walkSync = fsWalk.walkSync;
        this._statSync = fsStat.statSync;
    }
    dynamic(root, options) {
        return this._walkSync(root, options);
    }
    static(patterns, options) {
        const entries = [];
        for (const pattern of patterns) {
            const filepath = this._getFullEntryPath(pattern);
            const entry = this._getEntry(filepath, pattern, options);
            if (entry === null || !options.entryFilter(entry)) {
                continue;
            }
            entries.push(entry);
        }
        return entries;
    }
    _getEntry(filepath, pattern, options) {
        try {
            const stats = this._getStat(filepath);
            return this._makeEntry(stats, pattern);
        }
        catch (error) {
            if (options.errorFilter(error)) {
                return null;
            }
            throw error;
        }
    }
    _getStat(filepath) {
        return this._statSync(filepath, this._fsStatSettings);
    }
}
sync$4.default = ReaderSync;

Object.defineProperty(sync$5, "__esModule", { value: true });
const sync_1$1 = sync$4;
const provider_1 = provider;
class ProviderSync extends provider_1.default {
    constructor() {
        super(...arguments);
        this._reader = new sync_1$1.default(this._settings);
    }
    read(task) {
        const root = this._getRootDirectory(task);
        const options = this._getReaderOptions(task);
        const entries = this.api(root, task, options);
        return entries.map(options.transform);
    }
    api(root, task, options) {
        if (task.dynamic) {
            return this._reader.dynamic(root, options);
        }
        return this._reader.static(task.patterns, options);
    }
}
sync$5.default = ProviderSync;

var settings = {};

(function (exports) {
Object.defineProperty(exports, "__esModule", { value: true });
exports.DEFAULT_FILE_SYSTEM_ADAPTER = void 0;
const fs = fs__default;
const os = require$$0__default$1;
/**
 * The `os.cpus` method can return zero. We expect the number of cores to be greater than zero.
 * https://github.com/nodejs/node/blob/7faeddf23a98c53896f8b574a6e66589e8fb1eb8/lib/os.js#L106-L107
 */
const CPU_COUNT = Math.max(os.cpus().length, 1);
exports.DEFAULT_FILE_SYSTEM_ADAPTER = {
    lstat: fs.lstat,
    lstatSync: fs.lstatSync,
    stat: fs.stat,
    statSync: fs.statSync,
    readdir: fs.readdir,
    readdirSync: fs.readdirSync
};
class Settings {
    constructor(_options = {}) {
        this._options = _options;
        this.absolute = this._getValue(this._options.absolute, false);
        this.baseNameMatch = this._getValue(this._options.baseNameMatch, false);
        this.braceExpansion = this._getValue(this._options.braceExpansion, true);
        this.caseSensitiveMatch = this._getValue(this._options.caseSensitiveMatch, true);
        this.concurrency = this._getValue(this._options.concurrency, CPU_COUNT);
        this.cwd = this._getValue(this._options.cwd, process.cwd());
        this.deep = this._getValue(this._options.deep, Infinity);
        this.dot = this._getValue(this._options.dot, false);
        this.extglob = this._getValue(this._options.extglob, true);
        this.followSymbolicLinks = this._getValue(this._options.followSymbolicLinks, true);
        this.fs = this._getFileSystemMethods(this._options.fs);
        this.globstar = this._getValue(this._options.globstar, true);
        this.ignore = this._getValue(this._options.ignore, []);
        this.markDirectories = this._getValue(this._options.markDirectories, false);
        this.objectMode = this._getValue(this._options.objectMode, false);
        this.onlyDirectories = this._getValue(this._options.onlyDirectories, false);
        this.onlyFiles = this._getValue(this._options.onlyFiles, true);
        this.stats = this._getValue(this._options.stats, false);
        this.suppressErrors = this._getValue(this._options.suppressErrors, false);
        this.throwErrorOnBrokenSymbolicLink = this._getValue(this._options.throwErrorOnBrokenSymbolicLink, false);
        this.unique = this._getValue(this._options.unique, true);
        if (this.onlyDirectories) {
            this.onlyFiles = false;
        }
        if (this.stats) {
            this.objectMode = true;
        }
    }
    _getValue(option, value) {
        return option === undefined ? value : option;
    }
    _getFileSystemMethods(methods = {}) {
        return Object.assign(Object.assign({}, exports.DEFAULT_FILE_SYSTEM_ADAPTER), methods);
    }
}
exports.default = Settings;
}(settings));

const taskManager = tasks;
const async_1 = async$6;
const stream_1 = stream$3;
const sync_1 = sync$5;
const settings_1 = settings;
const utils = utils$k;
async function FastGlob(source, options) {
    assertPatternsInput$1(source);
    const works = getWorks(source, async_1.default, options);
    const result = await Promise.all(works);
    return utils.array.flatten(result);
}
// https://github.com/typescript-eslint/typescript-eslint/issues/60
// eslint-disable-next-line no-redeclare
(function (FastGlob) {
    function sync(source, options) {
        assertPatternsInput$1(source);
        const works = getWorks(source, sync_1.default, options);
        return utils.array.flatten(works);
    }
    FastGlob.sync = sync;
    function stream(source, options) {
        assertPatternsInput$1(source);
        const works = getWorks(source, stream_1.default, options);
        /**
         * The stream returned by the provider cannot work with an asynchronous iterator.
         * To support asynchronous iterators, regardless of the number of tasks, we always multiplex streams.
         * This affects performance (+25%). I don't see best solution right now.
         */
        return utils.stream.merge(works);
    }
    FastGlob.stream = stream;
    function generateTasks(source, options) {
        assertPatternsInput$1(source);
        const patterns = [].concat(source);
        const settings = new settings_1.default(options);
        return taskManager.generate(patterns, settings);
    }
    FastGlob.generateTasks = generateTasks;
    function isDynamicPattern(source, options) {
        assertPatternsInput$1(source);
        const settings = new settings_1.default(options);
        return utils.pattern.isDynamicPattern(source, settings);
    }
    FastGlob.isDynamicPattern = isDynamicPattern;
    function escapePath(source) {
        assertPatternsInput$1(source);
        return utils.path.escape(source);
    }
    FastGlob.escapePath = escapePath;
})(FastGlob || (FastGlob = {}));
function getWorks(source, _Provider, options) {
    const patterns = [].concat(source);
    const settings = new settings_1.default(options);
    const tasks = taskManager.generate(patterns, settings);
    const provider = new _Provider(settings);
    return tasks.map(provider.read, provider);
}
function assertPatternsInput$1(input) {
    const source = [].concat(input);
    const isValidSource = source.every((item) => utils.string.isString(item) && !utils.string.isEmpty(item));
    if (!isValidSource) {
        throw new TypeError('Patterns must be a string (non empty) or an array of strings');
    }
}
var out = FastGlob;

var dist$2 = {};

(function (exports) {
Object.defineProperty(exports, "__esModule", { value: true });
exports.lilconfigSync = exports.lilconfig = exports.defaultLoaders = void 0;
const path = path__default;
const fs = fs__default;
const os = require$$0__default$1;
const fsReadFileAsync = fs.promises.readFile;
function getDefaultSearchPlaces(name) {
    return [
        'package.json',
        `.${name}rc.json`,
        `.${name}rc.js`,
        `${name}.config.js`,
        `.${name}rc.cjs`,
        `${name}.config.cjs`,
    ];
}
function getSearchPaths(startDir, stopDir) {
    return startDir
        .split(path.sep)
        .reduceRight((acc, _, ind, arr) => {
        const currentPath = arr.slice(0, ind + 1).join(path.sep);
        if (!acc.passedStopDir)
            acc.searchPlaces.push(currentPath || path.sep);
        if (currentPath === stopDir)
            acc.passedStopDir = true;
        return acc;
    }, { searchPlaces: [], passedStopDir: false }).searchPlaces;
}
exports.defaultLoaders = Object.freeze({
    '.js': eval('require'),
    '.json': eval('require'),
    '.cjs': eval('require'),
    noExt(_, content) {
        return JSON.parse(content);
    },
});
function getExtDesc(ext) {
    return ext === 'noExt' ? 'files without extensions' : `extension "${ext}"`;
}
function getOptions(name, options = {}) {
    const conf = {
        stopDir: os.homedir(),
        searchPlaces: getDefaultSearchPlaces(name),
        ignoreEmptySearchPlaces: true,
        transform: (x) => x,
        packageProp: [name],
        ...options,
        loaders: { ...exports.defaultLoaders, ...options.loaders },
    };
    conf.searchPlaces.forEach(place => {
        const key = path.extname(place) || 'noExt';
        const loader = conf.loaders[key];
        if (!loader) {
            throw new Error(`No loader specified for ${getExtDesc(key)}, so searchPlaces item "${place}" is invalid`);
        }
        if (typeof loader !== 'function') {
            throw new Error(`loader for ${getExtDesc(key)} is not a function (type provided: "${typeof loader}"), so searchPlaces item "${place}" is invalid`);
        }
    });
    return conf;
}
function getPackageProp(props, obj) {
    if (typeof props === 'string' && props in obj)
        return obj[props];
    return ((Array.isArray(props) ? props : props.split('.')).reduce((acc, prop) => (acc === undefined ? acc : acc[prop]), obj) || null);
}
function getSearchItems(searchPlaces, searchPaths) {
    return searchPaths.reduce((acc, searchPath) => {
        searchPlaces.forEach(fileName => acc.push({
            fileName,
            filepath: path.join(searchPath, fileName),
            loaderKey: path.extname(fileName) || 'noExt',
        }));
        return acc;
    }, []);
}
function validateFilePath(filepath) {
    if (!filepath)
        throw new Error('load must pass a non-empty string');
}
function validateLoader(loader, ext) {
    if (!loader)
        throw new Error(`No loader specified for extension "${ext}"`);
    if (typeof loader !== 'function')
        throw new Error('loader is not a function');
}
function lilconfig(name, options) {
    const { ignoreEmptySearchPlaces, loaders, packageProp, searchPlaces, stopDir, transform, } = getOptions(name, options);
    return {
        async search(searchFrom = process.cwd()) {
            const searchPaths = getSearchPaths(searchFrom, stopDir);
            const result = {
                config: null,
                filepath: '',
            };
            const searchItems = getSearchItems(searchPlaces, searchPaths);
            for (const { fileName, filepath, loaderKey } of searchItems) {
                try {
                    await fs.promises.access(filepath);
                }
                catch (_a) {
                    continue;
                }
                const content = String(await fsReadFileAsync(filepath));
                const loader = loaders[loaderKey];
                if (fileName === 'package.json') {
                    const pkg = loader(filepath, content);
                    const maybeConfig = getPackageProp(packageProp, pkg);
                    if (maybeConfig != null) {
                        result.config = maybeConfig;
                        result.filepath = filepath;
                        break;
                    }
                    continue;
                }
                const isEmpty = content.trim() === '';
                if (isEmpty && ignoreEmptySearchPlaces)
                    continue;
                if (isEmpty) {
                    result.isEmpty = true;
                    result.config = undefined;
                }
                else {
                    validateLoader(loader, loaderKey);
                    result.config = loader(filepath, content);
                }
                result.filepath = filepath;
                break;
            }
            if (result.filepath === '' && result.config === null)
                return transform(null);
            return transform(result);
        },
        async load(filepath) {
            validateFilePath(filepath);
            const { base, ext } = path.parse(filepath);
            const loaderKey = ext || 'noExt';
            const loader = loaders[loaderKey];
            validateLoader(loader, loaderKey);
            const content = String(await fsReadFileAsync(filepath));
            if (base === 'package.json') {
                const pkg = await loader(filepath, content);
                return transform({
                    config: getPackageProp(packageProp, pkg),
                    filepath,
                });
            }
            const result = {
                config: null,
                filepath,
            };
            const isEmpty = content.trim() === '';
            if (isEmpty && ignoreEmptySearchPlaces)
                return transform({
                    config: undefined,
                    filepath,
                    isEmpty: true,
                });
            result.config = isEmpty
                ? undefined
                : await loader(filepath, content);
            return transform(isEmpty ? { ...result, isEmpty, config: undefined } : result);
        },
    };
}
exports.lilconfig = lilconfig;
function lilconfigSync(name, options) {
    const { ignoreEmptySearchPlaces, loaders, packageProp, searchPlaces, stopDir, transform, } = getOptions(name, options);
    return {
        search(searchFrom = process.cwd()) {
            const searchPaths = getSearchPaths(searchFrom, stopDir);
            const result = {
                config: null,
                filepath: '',
            };
            const searchItems = getSearchItems(searchPlaces, searchPaths);
            for (const { fileName, filepath, loaderKey } of searchItems) {
                try {
                    fs.accessSync(filepath);
                }
                catch (_a) {
                    continue;
                }
                const loader = loaders[loaderKey];
                const content = String(fs.readFileSync(filepath));
                if (fileName === 'package.json') {
                    const pkg = loader(filepath, content);
                    const maybeConfig = getPackageProp(packageProp, pkg);
                    if (maybeConfig != null) {
                        result.config = maybeConfig;
                        result.filepath = filepath;
                        break;
                    }
                    continue;
                }
                const isEmpty = content.trim() === '';
                if (isEmpty && ignoreEmptySearchPlaces)
                    continue;
                if (isEmpty) {
                    result.isEmpty = true;
                    result.config = undefined;
                }
                else {
                    validateLoader(loader, loaderKey);
                    result.config = loader(filepath, content);
                }
                result.filepath = filepath;
                break;
            }
            if (result.filepath === '' && result.config === null)
                return transform(null);
            return transform(result);
        },
        load(filepath) {
            validateFilePath(filepath);
            const { base, ext } = path.parse(filepath);
            const loaderKey = ext || 'noExt';
            const loader = loaders[loaderKey];
            validateLoader(loader, loaderKey);
            const content = String(fs.readFileSync(filepath));
            if (base === 'package.json') {
                const pkg = loader(filepath, content);
                return transform({
                    config: getPackageProp(packageProp, pkg),
                    filepath,
                });
            }
            const result = {
                config: null,
                filepath,
            };
            const isEmpty = content.trim() === '';
            if (isEmpty && ignoreEmptySearchPlaces)
                return transform({
                    filepath,
                    config: undefined,
                    isEmpty: true,
                });
            result.config = isEmpty ? undefined : loader(filepath, content);
            return transform(isEmpty ? { ...result, isEmpty, config: undefined } : result);
        },
    };
}
exports.lilconfigSync = lilconfigSync;
}(dist$2));

var dist$1 = {};

var parseCst$1 = {};

var PlainValueEc8e588e = {};

const Char = {
  ANCHOR: '&',
  COMMENT: '#',
  TAG: '!',
  DIRECTIVES_END: '-',
  DOCUMENT_END: '.'
};
const Type = {
  ALIAS: 'ALIAS',
  BLANK_LINE: 'BLANK_LINE',
  BLOCK_FOLDED: 'BLOCK_FOLDED',
  BLOCK_LITERAL: 'BLOCK_LITERAL',
  COMMENT: 'COMMENT',
  DIRECTIVE: 'DIRECTIVE',
  DOCUMENT: 'DOCUMENT',
  FLOW_MAP: 'FLOW_MAP',
  FLOW_SEQ: 'FLOW_SEQ',
  MAP: 'MAP',
  MAP_KEY: 'MAP_KEY',
  MAP_VALUE: 'MAP_VALUE',
  PLAIN: 'PLAIN',
  QUOTE_DOUBLE: 'QUOTE_DOUBLE',
  QUOTE_SINGLE: 'QUOTE_SINGLE',
  SEQ: 'SEQ',
  SEQ_ITEM: 'SEQ_ITEM'
};
const defaultTagPrefix = 'tag:yaml.org,2002:';
const defaultTags = {
  MAP: 'tag:yaml.org,2002:map',
  SEQ: 'tag:yaml.org,2002:seq',
  STR: 'tag:yaml.org,2002:str'
};

function findLineStarts(src) {
  const ls = [0];
  let offset = src.indexOf('\n');

  while (offset !== -1) {
    offset += 1;
    ls.push(offset);
    offset = src.indexOf('\n', offset);
  }

  return ls;
}

function getSrcInfo(cst) {
  let lineStarts, src;

  if (typeof cst === 'string') {
    lineStarts = findLineStarts(cst);
    src = cst;
  } else {
    if (Array.isArray(cst)) cst = cst[0];

    if (cst && cst.context) {
      if (!cst.lineStarts) cst.lineStarts = findLineStarts(cst.context.src);
      lineStarts = cst.lineStarts;
      src = cst.context.src;
    }
  }

  return {
    lineStarts,
    src
  };
}
/**
 * @typedef {Object} LinePos - One-indexed position in the source
 * @property {number} line
 * @property {number} col
 */

/**
 * Determine the line/col position matching a character offset.
 *
 * Accepts a source string or a CST document as the second parameter. With
 * the latter, starting indices for lines are cached in the document as
 * `lineStarts: number[]`.
 *
 * Returns a one-indexed `{ line, col }` location if found, or
 * `undefined` otherwise.
 *
 * @param {number} offset
 * @param {string|Document|Document[]} cst
 * @returns {?LinePos}
 */


function getLinePos(offset, cst) {
  if (typeof offset !== 'number' || offset < 0) return null;
  const {
    lineStarts,
    src
  } = getSrcInfo(cst);
  if (!lineStarts || !src || offset > src.length) return null;

  for (let i = 0; i < lineStarts.length; ++i) {
    const start = lineStarts[i];

    if (offset < start) {
      return {
        line: i,
        col: offset - lineStarts[i - 1] + 1
      };
    }

    if (offset === start) return {
      line: i + 1,
      col: 1
    };
  }

  const line = lineStarts.length;
  return {
    line,
    col: offset - lineStarts[line - 1] + 1
  };
}
/**
 * Get a specified line from the source.
 *
 * Accepts a source string or a CST document as the second parameter. With
 * the latter, starting indices for lines are cached in the document as
 * `lineStarts: number[]`.
 *
 * Returns the line as a string if found, or `null` otherwise.
 *
 * @param {number} line One-indexed line number
 * @param {string|Document|Document[]} cst
 * @returns {?string}
 */

function getLine(line, cst) {
  const {
    lineStarts,
    src
  } = getSrcInfo(cst);
  if (!lineStarts || !(line >= 1) || line > lineStarts.length) return null;
  const start = lineStarts[line - 1];
  let end = lineStarts[line]; // undefined for last line; that's ok for slice()

  while (end && end > start && src[end - 1] === '\n') --end;

  return src.slice(start, end);
}
/**
 * Pretty-print the starting line from the source indicated by the range `pos`
 *
 * Trims output to `maxWidth` chars while keeping the starting column visible,
 * using `…` at either end to indicate dropped characters.
 *
 * Returns a two-line string (or `null`) with `\n` as separator; the second line
 * will hold appropriately indented `^` marks indicating the column range.
 *
 * @param {Object} pos
 * @param {LinePos} pos.start
 * @param {LinePos} [pos.end]
 * @param {string|Document|Document[]*} cst
 * @param {number} [maxWidth=80]
 * @returns {?string}
 */

function getPrettyContext({
  start,
  end
}, cst, maxWidth = 80) {
  let src = getLine(start.line, cst);
  if (!src) return null;
  let {
    col
  } = start;

  if (src.length > maxWidth) {
    if (col <= maxWidth - 10) {
      src = src.substr(0, maxWidth - 1) + '…';
    } else {
      const halfWidth = Math.round(maxWidth / 2);
      if (src.length > col + halfWidth) src = src.substr(0, col + halfWidth - 1) + '…';
      col -= src.length - maxWidth;
      src = '…' + src.substr(1 - maxWidth);
    }
  }

  let errLen = 1;
  let errEnd = '';

  if (end) {
    if (end.line === start.line && col + (end.col - start.col) <= maxWidth + 1) {
      errLen = end.col - start.col;
    } else {
      errLen = Math.min(src.length + 1, maxWidth) - col;
      errEnd = '…';
    }
  }

  const offset = col > 1 ? ' '.repeat(col - 1) : '';
  const err = '^'.repeat(errLen);
  return `${src}\n${offset}${err}${errEnd}`;
}

class Range {
  static copy(orig) {
    return new Range(orig.start, orig.end);
  }

  constructor(start, end) {
    this.start = start;
    this.end = end || start;
  }

  isEmpty() {
    return typeof this.start !== 'number' || !this.end || this.end <= this.start;
  }
  /**
   * Set `origStart` and `origEnd` to point to the original source range for
   * this node, which may differ due to dropped CR characters.
   *
   * @param {number[]} cr - Positions of dropped CR characters
   * @param {number} offset - Starting index of `cr` from the last call
   * @returns {number} - The next offset, matching the one found for `origStart`
   */


  setOrigRange(cr, offset) {
    const {
      start,
      end
    } = this;

    if (cr.length === 0 || end <= cr[0]) {
      this.origStart = start;
      this.origEnd = end;
      return offset;
    }

    let i = offset;

    while (i < cr.length) {
      if (cr[i] > start) break;else ++i;
    }

    this.origStart = start + i;
    const nextOffset = i;

    while (i < cr.length) {
      // if end was at \n, it should now be at \r
      if (cr[i] >= end) break;else ++i;
    }

    this.origEnd = end + i;
    return nextOffset;
  }

}

/** Root class of all nodes */

class Node$2 {
  static addStringTerminator(src, offset, str) {
    if (str[str.length - 1] === '\n') return str;
    const next = Node$2.endOfWhiteSpace(src, offset);
    return next >= src.length || src[next] === '\n' ? str + '\n' : str;
  } // ^(---|...)


  static atDocumentBoundary(src, offset, sep) {
    const ch0 = src[offset];
    if (!ch0) return true;
    const prev = src[offset - 1];
    if (prev && prev !== '\n') return false;

    if (sep) {
      if (ch0 !== sep) return false;
    } else {
      if (ch0 !== Char.DIRECTIVES_END && ch0 !== Char.DOCUMENT_END) return false;
    }

    const ch1 = src[offset + 1];
    const ch2 = src[offset + 2];
    if (ch1 !== ch0 || ch2 !== ch0) return false;
    const ch3 = src[offset + 3];
    return !ch3 || ch3 === '\n' || ch3 === '\t' || ch3 === ' ';
  }

  static endOfIdentifier(src, offset) {
    let ch = src[offset];
    const isVerbatim = ch === '<';
    const notOk = isVerbatim ? ['\n', '\t', ' ', '>'] : ['\n', '\t', ' ', '[', ']', '{', '}', ','];

    while (ch && notOk.indexOf(ch) === -1) ch = src[offset += 1];

    if (isVerbatim && ch === '>') offset += 1;
    return offset;
  }

  static endOfIndent(src, offset) {
    let ch = src[offset];

    while (ch === ' ') ch = src[offset += 1];

    return offset;
  }

  static endOfLine(src, offset) {
    let ch = src[offset];

    while (ch && ch !== '\n') ch = src[offset += 1];

    return offset;
  }

  static endOfWhiteSpace(src, offset) {
    let ch = src[offset];

    while (ch === '\t' || ch === ' ') ch = src[offset += 1];

    return offset;
  }

  static startOfLine(src, offset) {
    let ch = src[offset - 1];
    if (ch === '\n') return offset;

    while (ch && ch !== '\n') ch = src[offset -= 1];

    return offset + 1;
  }
  /**
   * End of indentation, or null if the line's indent level is not more
   * than `indent`
   *
   * @param {string} src
   * @param {number} indent
   * @param {number} lineStart
   * @returns {?number}
   */


  static endOfBlockIndent(src, indent, lineStart) {
    const inEnd = Node$2.endOfIndent(src, lineStart);

    if (inEnd > lineStart + indent) {
      return inEnd;
    } else {
      const wsEnd = Node$2.endOfWhiteSpace(src, inEnd);
      const ch = src[wsEnd];
      if (!ch || ch === '\n') return wsEnd;
    }

    return null;
  }

  static atBlank(src, offset, endAsBlank) {
    const ch = src[offset];
    return ch === '\n' || ch === '\t' || ch === ' ' || endAsBlank && !ch;
  }

  static nextNodeIsIndented(ch, indentDiff, indicatorAsIndent) {
    if (!ch || indentDiff < 0) return false;
    if (indentDiff > 0) return true;
    return indicatorAsIndent && ch === '-';
  } // should be at line or string end, or at next non-whitespace char


  static normalizeOffset(src, offset) {
    const ch = src[offset];
    return !ch ? offset : ch !== '\n' && src[offset - 1] === '\n' ? offset - 1 : Node$2.endOfWhiteSpace(src, offset);
  } // fold single newline into space, multiple newlines to N - 1 newlines
  // presumes src[offset] === '\n'


  static foldNewline(src, offset, indent) {
    let inCount = 0;
    let error = false;
    let fold = '';
    let ch = src[offset + 1];

    while (ch === ' ' || ch === '\t' || ch === '\n') {
      switch (ch) {
        case '\n':
          inCount = 0;
          offset += 1;
          fold += '\n';
          break;

        case '\t':
          if (inCount <= indent) error = true;
          offset = Node$2.endOfWhiteSpace(src, offset + 2) - 1;
          break;

        case ' ':
          inCount += 1;
          offset += 1;
          break;
      }

      ch = src[offset + 1];
    }

    if (!fold) fold = ' ';
    if (ch && inCount <= indent) error = true;
    return {
      fold,
      offset,
      error
    };
  }

  constructor(type, props, context) {
    Object.defineProperty(this, 'context', {
      value: context || null,
      writable: true
    });
    this.error = null;
    this.range = null;
    this.valueRange = null;
    this.props = props || [];
    this.type = type;
    this.value = null;
  }

  getPropValue(idx, key, skipKey) {
    if (!this.context) return null;
    const {
      src
    } = this.context;
    const prop = this.props[idx];
    return prop && src[prop.start] === key ? src.slice(prop.start + (skipKey ? 1 : 0), prop.end) : null;
  }

  get anchor() {
    for (let i = 0; i < this.props.length; ++i) {
      const anchor = this.getPropValue(i, Char.ANCHOR, true);
      if (anchor != null) return anchor;
    }

    return null;
  }

  get comment() {
    const comments = [];

    for (let i = 0; i < this.props.length; ++i) {
      const comment = this.getPropValue(i, Char.COMMENT, true);
      if (comment != null) comments.push(comment);
    }

    return comments.length > 0 ? comments.join('\n') : null;
  }

  commentHasRequiredWhitespace(start) {
    const {
      src
    } = this.context;
    if (this.header && start === this.header.end) return false;
    if (!this.valueRange) return false;
    const {
      end
    } = this.valueRange;
    return start !== end || Node$2.atBlank(src, end - 1);
  }

  get hasComment() {
    if (this.context) {
      const {
        src
      } = this.context;

      for (let i = 0; i < this.props.length; ++i) {
        if (src[this.props[i].start] === Char.COMMENT) return true;
      }
    }

    return false;
  }

  get hasProps() {
    if (this.context) {
      const {
        src
      } = this.context;

      for (let i = 0; i < this.props.length; ++i) {
        if (src[this.props[i].start] !== Char.COMMENT) return true;
      }
    }

    return false;
  }

  get includesTrailingLines() {
    return false;
  }

  get jsonLike() {
    const jsonLikeTypes = [Type.FLOW_MAP, Type.FLOW_SEQ, Type.QUOTE_DOUBLE, Type.QUOTE_SINGLE];
    return jsonLikeTypes.indexOf(this.type) !== -1;
  }

  get rangeAsLinePos() {
    if (!this.range || !this.context) return undefined;
    const start = getLinePos(this.range.start, this.context.root);
    if (!start) return undefined;
    const end = getLinePos(this.range.end, this.context.root);
    return {
      start,
      end
    };
  }

  get rawValue() {
    if (!this.valueRange || !this.context) return null;
    const {
      start,
      end
    } = this.valueRange;
    return this.context.src.slice(start, end);
  }

  get tag() {
    for (let i = 0; i < this.props.length; ++i) {
      const tag = this.getPropValue(i, Char.TAG, false);

      if (tag != null) {
        if (tag[1] === '<') {
          return {
            verbatim: tag.slice(2, -1)
          };
        } else {
          // eslint-disable-next-line no-unused-vars
          const [_, handle, suffix] = tag.match(/^(.*!)([^!]*)$/);
          return {
            handle,
            suffix
          };
        }
      }
    }

    return null;
  }

  get valueRangeContainsNewline() {
    if (!this.valueRange || !this.context) return false;
    const {
      start,
      end
    } = this.valueRange;
    const {
      src
    } = this.context;

    for (let i = start; i < end; ++i) {
      if (src[i] === '\n') return true;
    }

    return false;
  }

  parseComment(start) {
    const {
      src
    } = this.context;

    if (src[start] === Char.COMMENT) {
      const end = Node$2.endOfLine(src, start + 1);
      const commentRange = new Range(start, end);
      this.props.push(commentRange);
      return end;
    }

    return start;
  }
  /**
   * Populates the `origStart` and `origEnd` values of all ranges for this
   * node. Extended by child classes to handle descendant nodes.
   *
   * @param {number[]} cr - Positions of dropped CR characters
   * @param {number} offset - Starting index of `cr` from the last call
   * @returns {number} - The next offset, matching the one found for `origStart`
   */


  setOrigRanges(cr, offset) {
    if (this.range) offset = this.range.setOrigRange(cr, offset);
    if (this.valueRange) this.valueRange.setOrigRange(cr, offset);
    this.props.forEach(prop => prop.setOrigRange(cr, offset));
    return offset;
  }

  toString() {
    const {
      context: {
        src
      },
      range,
      value
    } = this;
    if (value != null) return value;
    const str = src.slice(range.start, range.end);
    return Node$2.addStringTerminator(src, range.end, str);
  }

}

class YAMLError extends Error {
  constructor(name, source, message) {
    if (!message || !(source instanceof Node$2)) throw new Error(`Invalid arguments for new ${name}`);
    super();
    this.name = name;
    this.message = message;
    this.source = source;
  }

  makePretty() {
    if (!this.source) return;
    this.nodeType = this.source.type;
    const cst = this.source.context && this.source.context.root;

    if (typeof this.offset === 'number') {
      this.range = new Range(this.offset, this.offset + 1);
      const start = cst && getLinePos(this.offset, cst);

      if (start) {
        const end = {
          line: start.line,
          col: start.col + 1
        };
        this.linePos = {
          start,
          end
        };
      }

      delete this.offset;
    } else {
      this.range = this.source.range;
      this.linePos = this.source.rangeAsLinePos;
    }

    if (this.linePos) {
      const {
        line,
        col
      } = this.linePos.start;
      this.message += ` at line ${line}, column ${col}`;
      const ctx = cst && getPrettyContext(this.linePos, cst);
      if (ctx) this.message += `:\n\n${ctx}\n`;
    }

    delete this.source;
  }

}
class YAMLReferenceError extends YAMLError {
  constructor(source, message) {
    super('YAMLReferenceError', source, message);
  }

}
class YAMLSemanticError extends YAMLError {
  constructor(source, message) {
    super('YAMLSemanticError', source, message);
  }

}
class YAMLSyntaxError extends YAMLError {
  constructor(source, message) {
    super('YAMLSyntaxError', source, message);
  }

}
class YAMLWarning extends YAMLError {
  constructor(source, message) {
    super('YAMLWarning', source, message);
  }

}

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

class PlainValue$6 extends Node$2 {
  static endOfLine(src, start, inFlow) {
    let ch = src[start];
    let offset = start;

    while (ch && ch !== '\n') {
      if (inFlow && (ch === '[' || ch === ']' || ch === '{' || ch === '}' || ch === ',')) break;
      const next = src[offset + 1];
      if (ch === ':' && (!next || next === '\n' || next === '\t' || next === ' ' || inFlow && next === ',')) break;
      if ((ch === ' ' || ch === '\t') && next === '#') break;
      offset += 1;
      ch = next;
    }

    return offset;
  }

  get strValue() {
    if (!this.valueRange || !this.context) return null;
    let {
      start,
      end
    } = this.valueRange;
    const {
      src
    } = this.context;
    let ch = src[end - 1];

    while (start < end && (ch === '\n' || ch === '\t' || ch === ' ')) ch = src[--end - 1];

    let str = '';

    for (let i = start; i < end; ++i) {
      const ch = src[i];

      if (ch === '\n') {
        const {
          fold,
          offset
        } = Node$2.foldNewline(src, i, -1);
        str += fold;
        i = offset;
      } else if (ch === ' ' || ch === '\t') {
        // trim trailing whitespace
        const wsStart = i;
        let next = src[i + 1];

        while (i < end && (next === ' ' || next === '\t')) {
          i += 1;
          next = src[i + 1];
        }

        if (next !== '\n') str += i > wsStart ? src.slice(wsStart, i + 1) : ch;
      } else {
        str += ch;
      }
    }

    const ch0 = src[start];

    switch (ch0) {
      case '\t':
        {
          const msg = 'Plain value cannot start with a tab character';
          const errors = [new YAMLSemanticError(this, msg)];
          return {
            errors,
            str
          };
        }

      case '@':
      case '`':
        {
          const msg = `Plain value cannot start with reserved character ${ch0}`;
          const errors = [new YAMLSemanticError(this, msg)];
          return {
            errors,
            str
          };
        }

      default:
        return str;
    }
  }

  parseBlockValue(start) {
    const {
      indent,
      inFlow,
      src
    } = this.context;
    let offset = start;
    let valueEnd = start;

    for (let ch = src[offset]; ch === '\n'; ch = src[offset]) {
      if (Node$2.atDocumentBoundary(src, offset + 1)) break;
      const end = Node$2.endOfBlockIndent(src, indent, offset + 1);
      if (end === null || src[end] === '#') break;

      if (src[end] === '\n') {
        offset = end;
      } else {
        valueEnd = PlainValue$6.endOfLine(src, end, inFlow);
        offset = valueEnd;
      }
    }

    if (this.valueRange.isEmpty()) this.valueRange.start = start;
    this.valueRange.end = valueEnd;
    return valueEnd;
  }
  /**
   * Parses a plain value from the source
   *
   * Accepted forms are:
   * ```
   * #comment
   *
   * first line
   *
   * first line #comment
   *
   * first line
   * block
   * lines
   *
   * #comment
   * block
   * lines
   * ```
   * where block lines are empty or have an indent level greater than `indent`.
   *
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this scalar, may be `\n`
   */


  parse(context, start) {
    this.context = context;
    const {
      inFlow,
      src
    } = context;
    let offset = start;
    const ch = src[offset];

    if (ch && ch !== '#' && ch !== '\n') {
      offset = PlainValue$6.endOfLine(src, start, inFlow);
    }

    this.valueRange = new Range(start, offset);
    offset = Node$2.endOfWhiteSpace(src, offset);
    offset = this.parseComment(offset);

    if (!this.hasComment || this.valueRange.isEmpty()) {
      offset = this.parseBlockValue(offset);
    }

    return offset;
  }

}

PlainValueEc8e588e.Char = Char;
PlainValueEc8e588e.Node = Node$2;
PlainValueEc8e588e.PlainValue = PlainValue$6;
PlainValueEc8e588e.Range = Range;
PlainValueEc8e588e.Type = Type;
PlainValueEc8e588e.YAMLError = YAMLError;
PlainValueEc8e588e.YAMLReferenceError = YAMLReferenceError;
PlainValueEc8e588e.YAMLSemanticError = YAMLSemanticError;
PlainValueEc8e588e.YAMLSyntaxError = YAMLSyntaxError;
PlainValueEc8e588e.YAMLWarning = YAMLWarning;
PlainValueEc8e588e._defineProperty = _defineProperty;
PlainValueEc8e588e.defaultTagPrefix = defaultTagPrefix;
PlainValueEc8e588e.defaultTags = defaultTags;

var PlainValue$5 = PlainValueEc8e588e;

class BlankLine extends PlainValue$5.Node {
  constructor() {
    super(PlainValue$5.Type.BLANK_LINE);
  }
  /* istanbul ignore next */


  get includesTrailingLines() {
    // This is never called from anywhere, but if it were,
    // this is the value it should return.
    return true;
  }
  /**
   * Parses a blank line from the source
   *
   * @param {ParseContext} context
   * @param {number} start - Index of first \n character
   * @returns {number} - Index of the character after this
   */


  parse(context, start) {
    this.context = context;
    this.range = new PlainValue$5.Range(start, start + 1);
    return start + 1;
  }

}

class CollectionItem extends PlainValue$5.Node {
  constructor(type, props) {
    super(type, props);
    this.node = null;
  }

  get includesTrailingLines() {
    return !!this.node && this.node.includesTrailingLines;
  }
  /**
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this
   */


  parse(context, start) {
    this.context = context;
    const {
      parseNode,
      src
    } = context;
    let {
      atLineStart,
      lineStart
    } = context;
    if (!atLineStart && this.type === PlainValue$5.Type.SEQ_ITEM) this.error = new PlainValue$5.YAMLSemanticError(this, 'Sequence items must not have preceding content on the same line');
    const indent = atLineStart ? start - lineStart : context.indent;
    let offset = PlainValue$5.Node.endOfWhiteSpace(src, start + 1);
    let ch = src[offset];
    const inlineComment = ch === '#';
    const comments = [];
    let blankLine = null;

    while (ch === '\n' || ch === '#') {
      if (ch === '#') {
        const end = PlainValue$5.Node.endOfLine(src, offset + 1);
        comments.push(new PlainValue$5.Range(offset, end));
        offset = end;
      } else {
        atLineStart = true;
        lineStart = offset + 1;
        const wsEnd = PlainValue$5.Node.endOfWhiteSpace(src, lineStart);

        if (src[wsEnd] === '\n' && comments.length === 0) {
          blankLine = new BlankLine();
          lineStart = blankLine.parse({
            src
          }, lineStart);
        }

        offset = PlainValue$5.Node.endOfIndent(src, lineStart);
      }

      ch = src[offset];
    }

    if (PlainValue$5.Node.nextNodeIsIndented(ch, offset - (lineStart + indent), this.type !== PlainValue$5.Type.SEQ_ITEM)) {
      this.node = parseNode({
        atLineStart,
        inCollection: false,
        indent,
        lineStart,
        parent: this
      }, offset);
    } else if (ch && lineStart > start + 1) {
      offset = lineStart - 1;
    }

    if (this.node) {
      if (blankLine) {
        // Only blank lines preceding non-empty nodes are captured. Note that
        // this means that collection item range start indices do not always
        // increase monotonically. -- eemeli/yaml#126
        const items = context.parent.items || context.parent.contents;
        if (items) items.push(blankLine);
      }

      if (comments.length) Array.prototype.push.apply(this.props, comments);
      offset = this.node.range.end;
    } else {
      if (inlineComment) {
        const c = comments[0];
        this.props.push(c);
        offset = c.end;
      } else {
        offset = PlainValue$5.Node.endOfLine(src, start + 1);
      }
    }

    const end = this.node ? this.node.valueRange.end : offset;
    this.valueRange = new PlainValue$5.Range(start, end);
    return offset;
  }

  setOrigRanges(cr, offset) {
    offset = super.setOrigRanges(cr, offset);
    return this.node ? this.node.setOrigRanges(cr, offset) : offset;
  }

  toString() {
    const {
      context: {
        src
      },
      node,
      range,
      value
    } = this;
    if (value != null) return value;
    const str = node ? src.slice(range.start, node.range.start) + String(node) : src.slice(range.start, range.end);
    return PlainValue$5.Node.addStringTerminator(src, range.end, str);
  }

}

class Comment extends PlainValue$5.Node {
  constructor() {
    super(PlainValue$5.Type.COMMENT);
  }
  /**
   * Parses a comment line from the source
   *
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this scalar
   */


  parse(context, start) {
    this.context = context;
    const offset = this.parseComment(start);
    this.range = new PlainValue$5.Range(start, offset);
    return offset;
  }

}

function grabCollectionEndComments(node) {
  let cnode = node;

  while (cnode instanceof CollectionItem) cnode = cnode.node;

  if (!(cnode instanceof Collection$1)) return null;
  const len = cnode.items.length;
  let ci = -1;

  for (let i = len - 1; i >= 0; --i) {
    const n = cnode.items[i];

    if (n.type === PlainValue$5.Type.COMMENT) {
      // Keep sufficiently indented comments with preceding node
      const {
        indent,
        lineStart
      } = n.context;
      if (indent > 0 && n.range.start >= lineStart + indent) break;
      ci = i;
    } else if (n.type === PlainValue$5.Type.BLANK_LINE) ci = i;else break;
  }

  if (ci === -1) return null;
  const ca = cnode.items.splice(ci, len - ci);
  const prevEnd = ca[0].range.start;

  while (true) {
    cnode.range.end = prevEnd;
    if (cnode.valueRange && cnode.valueRange.end > prevEnd) cnode.valueRange.end = prevEnd;
    if (cnode === node) break;
    cnode = cnode.context.parent;
  }

  return ca;
}
class Collection$1 extends PlainValue$5.Node {
  static nextContentHasIndent(src, offset, indent) {
    const lineStart = PlainValue$5.Node.endOfLine(src, offset) + 1;
    offset = PlainValue$5.Node.endOfWhiteSpace(src, lineStart);
    const ch = src[offset];
    if (!ch) return false;
    if (offset >= lineStart + indent) return true;
    if (ch !== '#' && ch !== '\n') return false;
    return Collection$1.nextContentHasIndent(src, offset, indent);
  }

  constructor(firstItem) {
    super(firstItem.type === PlainValue$5.Type.SEQ_ITEM ? PlainValue$5.Type.SEQ : PlainValue$5.Type.MAP);

    for (let i = firstItem.props.length - 1; i >= 0; --i) {
      if (firstItem.props[i].start < firstItem.context.lineStart) {
        // props on previous line are assumed by the collection
        this.props = firstItem.props.slice(0, i + 1);
        firstItem.props = firstItem.props.slice(i + 1);
        const itemRange = firstItem.props[0] || firstItem.valueRange;
        firstItem.range.start = itemRange.start;
        break;
      }
    }

    this.items = [firstItem];
    const ec = grabCollectionEndComments(firstItem);
    if (ec) Array.prototype.push.apply(this.items, ec);
  }

  get includesTrailingLines() {
    return this.items.length > 0;
  }
  /**
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this
   */


  parse(context, start) {
    this.context = context;
    const {
      parseNode,
      src
    } = context; // It's easier to recalculate lineStart here rather than tracking down the
    // last context from which to read it -- eemeli/yaml#2

    let lineStart = PlainValue$5.Node.startOfLine(src, start);
    const firstItem = this.items[0]; // First-item context needs to be correct for later comment handling
    // -- eemeli/yaml#17

    firstItem.context.parent = this;
    this.valueRange = PlainValue$5.Range.copy(firstItem.valueRange);
    const indent = firstItem.range.start - firstItem.context.lineStart;
    let offset = start;
    offset = PlainValue$5.Node.normalizeOffset(src, offset);
    let ch = src[offset];
    let atLineStart = PlainValue$5.Node.endOfWhiteSpace(src, lineStart) === offset;
    let prevIncludesTrailingLines = false;

    while (ch) {
      while (ch === '\n' || ch === '#') {
        if (atLineStart && ch === '\n' && !prevIncludesTrailingLines) {
          const blankLine = new BlankLine();
          offset = blankLine.parse({
            src
          }, offset);
          this.valueRange.end = offset;

          if (offset >= src.length) {
            ch = null;
            break;
          }

          this.items.push(blankLine);
          offset -= 1; // blankLine.parse() consumes terminal newline
        } else if (ch === '#') {
          if (offset < lineStart + indent && !Collection$1.nextContentHasIndent(src, offset, indent)) {
            return offset;
          }

          const comment = new Comment();
          offset = comment.parse({
            indent,
            lineStart,
            src
          }, offset);
          this.items.push(comment);
          this.valueRange.end = offset;

          if (offset >= src.length) {
            ch = null;
            break;
          }
        }

        lineStart = offset + 1;
        offset = PlainValue$5.Node.endOfIndent(src, lineStart);

        if (PlainValue$5.Node.atBlank(src, offset)) {
          const wsEnd = PlainValue$5.Node.endOfWhiteSpace(src, offset);
          const next = src[wsEnd];

          if (!next || next === '\n' || next === '#') {
            offset = wsEnd;
          }
        }

        ch = src[offset];
        atLineStart = true;
      }

      if (!ch) {
        break;
      }

      if (offset !== lineStart + indent && (atLineStart || ch !== ':')) {
        if (offset < lineStart + indent) {
          if (lineStart > start) offset = lineStart;
          break;
        } else if (!this.error) {
          const msg = 'All collection items must start at the same column';
          this.error = new PlainValue$5.YAMLSyntaxError(this, msg);
        }
      }

      if (firstItem.type === PlainValue$5.Type.SEQ_ITEM) {
        if (ch !== '-') {
          if (lineStart > start) offset = lineStart;
          break;
        }
      } else if (ch === '-' && !this.error) {
        // map key may start with -, as long as it's followed by a non-whitespace char
        const next = src[offset + 1];

        if (!next || next === '\n' || next === '\t' || next === ' ') {
          const msg = 'A collection cannot be both a mapping and a sequence';
          this.error = new PlainValue$5.YAMLSyntaxError(this, msg);
        }
      }

      const node = parseNode({
        atLineStart,
        inCollection: true,
        indent,
        lineStart,
        parent: this
      }, offset);
      if (!node) return offset; // at next document start

      this.items.push(node);
      this.valueRange.end = node.valueRange.end;
      offset = PlainValue$5.Node.normalizeOffset(src, node.range.end);
      ch = src[offset];
      atLineStart = false;
      prevIncludesTrailingLines = node.includesTrailingLines; // Need to reset lineStart and atLineStart here if preceding node's range
      // has advanced to check the current line's indentation level
      // -- eemeli/yaml#10 & eemeli/yaml#38

      if (ch) {
        let ls = offset - 1;
        let prev = src[ls];

        while (prev === ' ' || prev === '\t') prev = src[--ls];

        if (prev === '\n') {
          lineStart = ls + 1;
          atLineStart = true;
        }
      }

      const ec = grabCollectionEndComments(node);
      if (ec) Array.prototype.push.apply(this.items, ec);
    }

    return offset;
  }

  setOrigRanges(cr, offset) {
    offset = super.setOrigRanges(cr, offset);
    this.items.forEach(node => {
      offset = node.setOrigRanges(cr, offset);
    });
    return offset;
  }

  toString() {
    const {
      context: {
        src
      },
      items,
      range,
      value
    } = this;
    if (value != null) return value;
    let str = src.slice(range.start, items[0].range.start) + String(items[0]);

    for (let i = 1; i < items.length; ++i) {
      const item = items[i];
      const {
        atLineStart,
        indent
      } = item.context;
      if (atLineStart) for (let i = 0; i < indent; ++i) str += ' ';
      str += String(item);
    }

    return PlainValue$5.Node.addStringTerminator(src, range.end, str);
  }

}

class Directive extends PlainValue$5.Node {
  constructor() {
    super(PlainValue$5.Type.DIRECTIVE);
    this.name = null;
  }

  get parameters() {
    const raw = this.rawValue;
    return raw ? raw.trim().split(/[ \t]+/) : [];
  }

  parseName(start) {
    const {
      src
    } = this.context;
    let offset = start;
    let ch = src[offset];

    while (ch && ch !== '\n' && ch !== '\t' && ch !== ' ') ch = src[offset += 1];

    this.name = src.slice(start, offset);
    return offset;
  }

  parseParameters(start) {
    const {
      src
    } = this.context;
    let offset = start;
    let ch = src[offset];

    while (ch && ch !== '\n' && ch !== '#') ch = src[offset += 1];

    this.valueRange = new PlainValue$5.Range(start, offset);
    return offset;
  }

  parse(context, start) {
    this.context = context;
    let offset = this.parseName(start + 1);
    offset = this.parseParameters(offset);
    offset = this.parseComment(offset);
    this.range = new PlainValue$5.Range(start, offset);
    return offset;
  }

}

class Document$3 extends PlainValue$5.Node {
  static startCommentOrEndBlankLine(src, start) {
    const offset = PlainValue$5.Node.endOfWhiteSpace(src, start);
    const ch = src[offset];
    return ch === '#' || ch === '\n' ? offset : start;
  }

  constructor() {
    super(PlainValue$5.Type.DOCUMENT);
    this.directives = null;
    this.contents = null;
    this.directivesEndMarker = null;
    this.documentEndMarker = null;
  }

  parseDirectives(start) {
    const {
      src
    } = this.context;
    this.directives = [];
    let atLineStart = true;
    let hasDirectives = false;
    let offset = start;

    while (!PlainValue$5.Node.atDocumentBoundary(src, offset, PlainValue$5.Char.DIRECTIVES_END)) {
      offset = Document$3.startCommentOrEndBlankLine(src, offset);

      switch (src[offset]) {
        case '\n':
          if (atLineStart) {
            const blankLine = new BlankLine();
            offset = blankLine.parse({
              src
            }, offset);

            if (offset < src.length) {
              this.directives.push(blankLine);
            }
          } else {
            offset += 1;
            atLineStart = true;
          }

          break;

        case '#':
          {
            const comment = new Comment();
            offset = comment.parse({
              src
            }, offset);
            this.directives.push(comment);
            atLineStart = false;
          }
          break;

        case '%':
          {
            const directive = new Directive();
            offset = directive.parse({
              parent: this,
              src
            }, offset);
            this.directives.push(directive);
            hasDirectives = true;
            atLineStart = false;
          }
          break;

        default:
          if (hasDirectives) {
            this.error = new PlainValue$5.YAMLSemanticError(this, 'Missing directives-end indicator line');
          } else if (this.directives.length > 0) {
            this.contents = this.directives;
            this.directives = [];
          }

          return offset;
      }
    }

    if (src[offset]) {
      this.directivesEndMarker = new PlainValue$5.Range(offset, offset + 3);
      return offset + 3;
    }

    if (hasDirectives) {
      this.error = new PlainValue$5.YAMLSemanticError(this, 'Missing directives-end indicator line');
    } else if (this.directives.length > 0) {
      this.contents = this.directives;
      this.directives = [];
    }

    return offset;
  }

  parseContents(start) {
    const {
      parseNode,
      src
    } = this.context;
    if (!this.contents) this.contents = [];
    let lineStart = start;

    while (src[lineStart - 1] === '-') lineStart -= 1;

    let offset = PlainValue$5.Node.endOfWhiteSpace(src, start);
    let atLineStart = lineStart === start;
    this.valueRange = new PlainValue$5.Range(offset);

    while (!PlainValue$5.Node.atDocumentBoundary(src, offset, PlainValue$5.Char.DOCUMENT_END)) {
      switch (src[offset]) {
        case '\n':
          if (atLineStart) {
            const blankLine = new BlankLine();
            offset = blankLine.parse({
              src
            }, offset);

            if (offset < src.length) {
              this.contents.push(blankLine);
            }
          } else {
            offset += 1;
            atLineStart = true;
          }

          lineStart = offset;
          break;

        case '#':
          {
            const comment = new Comment();
            offset = comment.parse({
              src
            }, offset);
            this.contents.push(comment);
            atLineStart = false;
          }
          break;

        default:
          {
            const iEnd = PlainValue$5.Node.endOfIndent(src, offset);
            const context = {
              atLineStart,
              indent: -1,
              inFlow: false,
              inCollection: false,
              lineStart,
              parent: this
            };
            const node = parseNode(context, iEnd);
            if (!node) return this.valueRange.end = iEnd; // at next document start

            this.contents.push(node);
            offset = node.range.end;
            atLineStart = false;
            const ec = grabCollectionEndComments(node);
            if (ec) Array.prototype.push.apply(this.contents, ec);
          }
      }

      offset = Document$3.startCommentOrEndBlankLine(src, offset);
    }

    this.valueRange.end = offset;

    if (src[offset]) {
      this.documentEndMarker = new PlainValue$5.Range(offset, offset + 3);
      offset += 3;

      if (src[offset]) {
        offset = PlainValue$5.Node.endOfWhiteSpace(src, offset);

        if (src[offset] === '#') {
          const comment = new Comment();
          offset = comment.parse({
            src
          }, offset);
          this.contents.push(comment);
        }

        switch (src[offset]) {
          case '\n':
            offset += 1;
            break;

          case undefined:
            break;

          default:
            this.error = new PlainValue$5.YAMLSyntaxError(this, 'Document end marker line cannot have a non-comment suffix');
        }
      }
    }

    return offset;
  }
  /**
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this
   */


  parse(context, start) {
    context.root = this;
    this.context = context;
    const {
      src
    } = context;
    let offset = src.charCodeAt(start) === 0xfeff ? start + 1 : start; // skip BOM

    offset = this.parseDirectives(offset);
    offset = this.parseContents(offset);
    return offset;
  }

  setOrigRanges(cr, offset) {
    offset = super.setOrigRanges(cr, offset);
    this.directives.forEach(node => {
      offset = node.setOrigRanges(cr, offset);
    });
    if (this.directivesEndMarker) offset = this.directivesEndMarker.setOrigRange(cr, offset);
    this.contents.forEach(node => {
      offset = node.setOrigRanges(cr, offset);
    });
    if (this.documentEndMarker) offset = this.documentEndMarker.setOrigRange(cr, offset);
    return offset;
  }

  toString() {
    const {
      contents,
      directives,
      value
    } = this;
    if (value != null) return value;
    let str = directives.join('');

    if (contents.length > 0) {
      if (directives.length > 0 || contents[0].type === PlainValue$5.Type.COMMENT) str += '---\n';
      str += contents.join('');
    }

    if (str[str.length - 1] !== '\n') str += '\n';
    return str;
  }

}

class Alias$1 extends PlainValue$5.Node {
  /**
   * Parses an *alias from the source
   *
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this scalar
   */
  parse(context, start) {
    this.context = context;
    const {
      src
    } = context;
    let offset = PlainValue$5.Node.endOfIdentifier(src, start + 1);
    this.valueRange = new PlainValue$5.Range(start + 1, offset);
    offset = PlainValue$5.Node.endOfWhiteSpace(src, offset);
    offset = this.parseComment(offset);
    return offset;
  }

}

const Chomp = {
  CLIP: 'CLIP',
  KEEP: 'KEEP',
  STRIP: 'STRIP'
};
class BlockValue extends PlainValue$5.Node {
  constructor(type, props) {
    super(type, props);
    this.blockIndent = null;
    this.chomping = Chomp.CLIP;
    this.header = null;
  }

  get includesTrailingLines() {
    return this.chomping === Chomp.KEEP;
  }

  get strValue() {
    if (!this.valueRange || !this.context) return null;
    let {
      start,
      end
    } = this.valueRange;
    const {
      indent,
      src
    } = this.context;
    if (this.valueRange.isEmpty()) return '';
    let lastNewLine = null;
    let ch = src[end - 1];

    while (ch === '\n' || ch === '\t' || ch === ' ') {
      end -= 1;

      if (end <= start) {
        if (this.chomping === Chomp.KEEP) break;else return ''; // probably never happens
      }

      if (ch === '\n') lastNewLine = end;
      ch = src[end - 1];
    }

    let keepStart = end + 1;

    if (lastNewLine) {
      if (this.chomping === Chomp.KEEP) {
        keepStart = lastNewLine;
        end = this.valueRange.end;
      } else {
        end = lastNewLine;
      }
    }

    const bi = indent + this.blockIndent;
    const folded = this.type === PlainValue$5.Type.BLOCK_FOLDED;
    let atStart = true;
    let str = '';
    let sep = '';
    let prevMoreIndented = false;

    for (let i = start; i < end; ++i) {
      for (let j = 0; j < bi; ++j) {
        if (src[i] !== ' ') break;
        i += 1;
      }

      const ch = src[i];

      if (ch === '\n') {
        if (sep === '\n') str += '\n';else sep = '\n';
      } else {
        const lineEnd = PlainValue$5.Node.endOfLine(src, i);
        const line = src.slice(i, lineEnd);
        i = lineEnd;

        if (folded && (ch === ' ' || ch === '\t') && i < keepStart) {
          if (sep === ' ') sep = '\n';else if (!prevMoreIndented && !atStart && sep === '\n') sep = '\n\n';
          str += sep + line; //+ ((lineEnd < end && src[lineEnd]) || '')

          sep = lineEnd < end && src[lineEnd] || '';
          prevMoreIndented = true;
        } else {
          str += sep + line;
          sep = folded && i < keepStart ? ' ' : '\n';
          prevMoreIndented = false;
        }

        if (atStart && line !== '') atStart = false;
      }
    }

    return this.chomping === Chomp.STRIP ? str : str + '\n';
  }

  parseBlockHeader(start) {
    const {
      src
    } = this.context;
    let offset = start + 1;
    let bi = '';

    while (true) {
      const ch = src[offset];

      switch (ch) {
        case '-':
          this.chomping = Chomp.STRIP;
          break;

        case '+':
          this.chomping = Chomp.KEEP;
          break;

        case '0':
        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
        case '9':
          bi += ch;
          break;

        default:
          this.blockIndent = Number(bi) || null;
          this.header = new PlainValue$5.Range(start, offset);
          return offset;
      }

      offset += 1;
    }
  }

  parseBlockValue(start) {
    const {
      indent,
      src
    } = this.context;
    const explicit = !!this.blockIndent;
    let offset = start;
    let valueEnd = start;
    let minBlockIndent = 1;

    for (let ch = src[offset]; ch === '\n'; ch = src[offset]) {
      offset += 1;
      if (PlainValue$5.Node.atDocumentBoundary(src, offset)) break;
      const end = PlainValue$5.Node.endOfBlockIndent(src, indent, offset); // should not include tab?

      if (end === null) break;
      const ch = src[end];
      const lineIndent = end - (offset + indent);

      if (!this.blockIndent) {
        // no explicit block indent, none yet detected
        if (src[end] !== '\n') {
          // first line with non-whitespace content
          if (lineIndent < minBlockIndent) {
            const msg = 'Block scalars with more-indented leading empty lines must use an explicit indentation indicator';
            this.error = new PlainValue$5.YAMLSemanticError(this, msg);
          }

          this.blockIndent = lineIndent;
        } else if (lineIndent > minBlockIndent) {
          // empty line with more whitespace
          minBlockIndent = lineIndent;
        }
      } else if (ch && ch !== '\n' && lineIndent < this.blockIndent) {
        if (src[end] === '#') break;

        if (!this.error) {
          const src = explicit ? 'explicit indentation indicator' : 'first line';
          const msg = `Block scalars must not be less indented than their ${src}`;
          this.error = new PlainValue$5.YAMLSemanticError(this, msg);
        }
      }

      if (src[end] === '\n') {
        offset = end;
      } else {
        offset = valueEnd = PlainValue$5.Node.endOfLine(src, end);
      }
    }

    if (this.chomping !== Chomp.KEEP) {
      offset = src[valueEnd] ? valueEnd + 1 : valueEnd;
    }

    this.valueRange = new PlainValue$5.Range(start + 1, offset);
    return offset;
  }
  /**
   * Parses a block value from the source
   *
   * Accepted forms are:
   * ```
   * BS
   * block
   * lines
   *
   * BS #comment
   * block
   * lines
   * ```
   * where the block style BS matches the regexp `[|>][-+1-9]*` and block lines
   * are empty or have an indent level greater than `indent`.
   *
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this block
   */


  parse(context, start) {
    this.context = context;
    const {
      src
    } = context;
    let offset = this.parseBlockHeader(start);
    offset = PlainValue$5.Node.endOfWhiteSpace(src, offset);
    offset = this.parseComment(offset);
    offset = this.parseBlockValue(offset);
    return offset;
  }

  setOrigRanges(cr, offset) {
    offset = super.setOrigRanges(cr, offset);
    return this.header ? this.header.setOrigRange(cr, offset) : offset;
  }

}

class FlowCollection extends PlainValue$5.Node {
  constructor(type, props) {
    super(type, props);
    this.items = null;
  }

  prevNodeIsJsonLike(idx = this.items.length) {
    const node = this.items[idx - 1];
    return !!node && (node.jsonLike || node.type === PlainValue$5.Type.COMMENT && this.prevNodeIsJsonLike(idx - 1));
  }
  /**
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this
   */


  parse(context, start) {
    this.context = context;
    const {
      parseNode,
      src
    } = context;
    let {
      indent,
      lineStart
    } = context;
    let char = src[start]; // { or [

    this.items = [{
      char,
      offset: start
    }];
    let offset = PlainValue$5.Node.endOfWhiteSpace(src, start + 1);
    char = src[offset];

    while (char && char !== ']' && char !== '}') {
      switch (char) {
        case '\n':
          {
            lineStart = offset + 1;
            const wsEnd = PlainValue$5.Node.endOfWhiteSpace(src, lineStart);

            if (src[wsEnd] === '\n') {
              const blankLine = new BlankLine();
              lineStart = blankLine.parse({
                src
              }, lineStart);
              this.items.push(blankLine);
            }

            offset = PlainValue$5.Node.endOfIndent(src, lineStart);

            if (offset <= lineStart + indent) {
              char = src[offset];

              if (offset < lineStart + indent || char !== ']' && char !== '}') {
                const msg = 'Insufficient indentation in flow collection';
                this.error = new PlainValue$5.YAMLSemanticError(this, msg);
              }
            }
          }
          break;

        case ',':
          {
            this.items.push({
              char,
              offset
            });
            offset += 1;
          }
          break;

        case '#':
          {
            const comment = new Comment();
            offset = comment.parse({
              src
            }, offset);
            this.items.push(comment);
          }
          break;

        case '?':
        case ':':
          {
            const next = src[offset + 1];

            if (next === '\n' || next === '\t' || next === ' ' || next === ',' || // in-flow : after JSON-like key does not need to be followed by whitespace
            char === ':' && this.prevNodeIsJsonLike()) {
              this.items.push({
                char,
                offset
              });
              offset += 1;
              break;
            }
          }
        // fallthrough

        default:
          {
            const node = parseNode({
              atLineStart: false,
              inCollection: false,
              inFlow: true,
              indent: -1,
              lineStart,
              parent: this
            }, offset);

            if (!node) {
              // at next document start
              this.valueRange = new PlainValue$5.Range(start, offset);
              return offset;
            }

            this.items.push(node);
            offset = PlainValue$5.Node.normalizeOffset(src, node.range.end);
          }
      }

      offset = PlainValue$5.Node.endOfWhiteSpace(src, offset);
      char = src[offset];
    }

    this.valueRange = new PlainValue$5.Range(start, offset + 1);

    if (char) {
      this.items.push({
        char,
        offset
      });
      offset = PlainValue$5.Node.endOfWhiteSpace(src, offset + 1);
      offset = this.parseComment(offset);
    }

    return offset;
  }

  setOrigRanges(cr, offset) {
    offset = super.setOrigRanges(cr, offset);
    this.items.forEach(node => {
      if (node instanceof PlainValue$5.Node) {
        offset = node.setOrigRanges(cr, offset);
      } else if (cr.length === 0) {
        node.origOffset = node.offset;
      } else {
        let i = offset;

        while (i < cr.length) {
          if (cr[i] > node.offset) break;else ++i;
        }

        node.origOffset = node.offset + i;
        offset = i;
      }
    });
    return offset;
  }

  toString() {
    const {
      context: {
        src
      },
      items,
      range,
      value
    } = this;
    if (value != null) return value;
    const nodes = items.filter(item => item instanceof PlainValue$5.Node);
    let str = '';
    let prevEnd = range.start;
    nodes.forEach(node => {
      const prefix = src.slice(prevEnd, node.range.start);
      prevEnd = node.range.end;
      str += prefix + String(node);

      if (str[str.length - 1] === '\n' && src[prevEnd - 1] !== '\n' && src[prevEnd] === '\n') {
        // Comment range does not include the terminal newline, but its
        // stringified value does. Without this fix, newlines at comment ends
        // get duplicated.
        prevEnd += 1;
      }
    });
    str += src.slice(prevEnd, range.end);
    return PlainValue$5.Node.addStringTerminator(src, range.end, str);
  }

}

class QuoteDouble extends PlainValue$5.Node {
  static endOfQuote(src, offset) {
    let ch = src[offset];

    while (ch && ch !== '"') {
      offset += ch === '\\' ? 2 : 1;
      ch = src[offset];
    }

    return offset + 1;
  }
  /**
   * @returns {string | { str: string, errors: YAMLSyntaxError[] }}
   */


  get strValue() {
    if (!this.valueRange || !this.context) return null;
    const errors = [];
    const {
      start,
      end
    } = this.valueRange;
    const {
      indent,
      src
    } = this.context;
    if (src[end - 1] !== '"') errors.push(new PlainValue$5.YAMLSyntaxError(this, 'Missing closing "quote')); // Using String#replace is too painful with escaped newlines preceded by
    // escaped backslashes; also, this should be faster.

    let str = '';

    for (let i = start + 1; i < end - 1; ++i) {
      const ch = src[i];

      if (ch === '\n') {
        if (PlainValue$5.Node.atDocumentBoundary(src, i + 1)) errors.push(new PlainValue$5.YAMLSemanticError(this, 'Document boundary indicators are not allowed within string values'));
        const {
          fold,
          offset,
          error
        } = PlainValue$5.Node.foldNewline(src, i, indent);
        str += fold;
        i = offset;
        if (error) errors.push(new PlainValue$5.YAMLSemanticError(this, 'Multi-line double-quoted string needs to be sufficiently indented'));
      } else if (ch === '\\') {
        i += 1;

        switch (src[i]) {
          case '0':
            str += '\0';
            break;
          // null character

          case 'a':
            str += '\x07';
            break;
          // bell character

          case 'b':
            str += '\b';
            break;
          // backspace

          case 'e':
            str += '\x1b';
            break;
          // escape character

          case 'f':
            str += '\f';
            break;
          // form feed

          case 'n':
            str += '\n';
            break;
          // line feed

          case 'r':
            str += '\r';
            break;
          // carriage return

          case 't':
            str += '\t';
            break;
          // horizontal tab

          case 'v':
            str += '\v';
            break;
          // vertical tab

          case 'N':
            str += '\u0085';
            break;
          // Unicode next line

          case '_':
            str += '\u00a0';
            break;
          // Unicode non-breaking space

          case 'L':
            str += '\u2028';
            break;
          // Unicode line separator

          case 'P':
            str += '\u2029';
            break;
          // Unicode paragraph separator

          case ' ':
            str += ' ';
            break;

          case '"':
            str += '"';
            break;

          case '/':
            str += '/';
            break;

          case '\\':
            str += '\\';
            break;

          case '\t':
            str += '\t';
            break;

          case 'x':
            str += this.parseCharCode(i + 1, 2, errors);
            i += 2;
            break;

          case 'u':
            str += this.parseCharCode(i + 1, 4, errors);
            i += 4;
            break;

          case 'U':
            str += this.parseCharCode(i + 1, 8, errors);
            i += 8;
            break;

          case '\n':
            // skip escaped newlines, but still trim the following line
            while (src[i + 1] === ' ' || src[i + 1] === '\t') i += 1;

            break;

          default:
            errors.push(new PlainValue$5.YAMLSyntaxError(this, `Invalid escape sequence ${src.substr(i - 1, 2)}`));
            str += '\\' + src[i];
        }
      } else if (ch === ' ' || ch === '\t') {
        // trim trailing whitespace
        const wsStart = i;
        let next = src[i + 1];

        while (next === ' ' || next === '\t') {
          i += 1;
          next = src[i + 1];
        }

        if (next !== '\n') str += i > wsStart ? src.slice(wsStart, i + 1) : ch;
      } else {
        str += ch;
      }
    }

    return errors.length > 0 ? {
      errors,
      str
    } : str;
  }

  parseCharCode(offset, length, errors) {
    const {
      src
    } = this.context;
    const cc = src.substr(offset, length);
    const ok = cc.length === length && /^[0-9a-fA-F]+$/.test(cc);
    const code = ok ? parseInt(cc, 16) : NaN;

    if (isNaN(code)) {
      errors.push(new PlainValue$5.YAMLSyntaxError(this, `Invalid escape sequence ${src.substr(offset - 2, length + 2)}`));
      return src.substr(offset - 2, length + 2);
    }

    return String.fromCodePoint(code);
  }
  /**
   * Parses a "double quoted" value from the source
   *
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this scalar
   */


  parse(context, start) {
    this.context = context;
    const {
      src
    } = context;
    let offset = QuoteDouble.endOfQuote(src, start + 1);
    this.valueRange = new PlainValue$5.Range(start, offset);
    offset = PlainValue$5.Node.endOfWhiteSpace(src, offset);
    offset = this.parseComment(offset);
    return offset;
  }

}

class QuoteSingle extends PlainValue$5.Node {
  static endOfQuote(src, offset) {
    let ch = src[offset];

    while (ch) {
      if (ch === "'") {
        if (src[offset + 1] !== "'") break;
        ch = src[offset += 2];
      } else {
        ch = src[offset += 1];
      }
    }

    return offset + 1;
  }
  /**
   * @returns {string | { str: string, errors: YAMLSyntaxError[] }}
   */


  get strValue() {
    if (!this.valueRange || !this.context) return null;
    const errors = [];
    const {
      start,
      end
    } = this.valueRange;
    const {
      indent,
      src
    } = this.context;
    if (src[end - 1] !== "'") errors.push(new PlainValue$5.YAMLSyntaxError(this, "Missing closing 'quote"));
    let str = '';

    for (let i = start + 1; i < end - 1; ++i) {
      const ch = src[i];

      if (ch === '\n') {
        if (PlainValue$5.Node.atDocumentBoundary(src, i + 1)) errors.push(new PlainValue$5.YAMLSemanticError(this, 'Document boundary indicators are not allowed within string values'));
        const {
          fold,
          offset,
          error
        } = PlainValue$5.Node.foldNewline(src, i, indent);
        str += fold;
        i = offset;
        if (error) errors.push(new PlainValue$5.YAMLSemanticError(this, 'Multi-line single-quoted string needs to be sufficiently indented'));
      } else if (ch === "'") {
        str += ch;
        i += 1;
        if (src[i] !== "'") errors.push(new PlainValue$5.YAMLSyntaxError(this, 'Unescaped single quote? This should not happen.'));
      } else if (ch === ' ' || ch === '\t') {
        // trim trailing whitespace
        const wsStart = i;
        let next = src[i + 1];

        while (next === ' ' || next === '\t') {
          i += 1;
          next = src[i + 1];
        }

        if (next !== '\n') str += i > wsStart ? src.slice(wsStart, i + 1) : ch;
      } else {
        str += ch;
      }
    }

    return errors.length > 0 ? {
      errors,
      str
    } : str;
  }
  /**
   * Parses a 'single quoted' value from the source
   *
   * @param {ParseContext} context
   * @param {number} start - Index of first character
   * @returns {number} - Index of the character after this scalar
   */


  parse(context, start) {
    this.context = context;
    const {
      src
    } = context;
    let offset = QuoteSingle.endOfQuote(src, start + 1);
    this.valueRange = new PlainValue$5.Range(start, offset);
    offset = PlainValue$5.Node.endOfWhiteSpace(src, offset);
    offset = this.parseComment(offset);
    return offset;
  }

}

function createNewNode(type, props) {
  switch (type) {
    case PlainValue$5.Type.ALIAS:
      return new Alias$1(type, props);

    case PlainValue$5.Type.BLOCK_FOLDED:
    case PlainValue$5.Type.BLOCK_LITERAL:
      return new BlockValue(type, props);

    case PlainValue$5.Type.FLOW_MAP:
    case PlainValue$5.Type.FLOW_SEQ:
      return new FlowCollection(type, props);

    case PlainValue$5.Type.MAP_KEY:
    case PlainValue$5.Type.MAP_VALUE:
    case PlainValue$5.Type.SEQ_ITEM:
      return new CollectionItem(type, props);

    case PlainValue$5.Type.COMMENT:
    case PlainValue$5.Type.PLAIN:
      return new PlainValue$5.PlainValue(type, props);

    case PlainValue$5.Type.QUOTE_DOUBLE:
      return new QuoteDouble(type, props);

    case PlainValue$5.Type.QUOTE_SINGLE:
      return new QuoteSingle(type, props);

    /* istanbul ignore next */

    default:
      return null;
    // should never happen
  }
}
/**
 * @param {boolean} atLineStart - Node starts at beginning of line
 * @param {boolean} inFlow - true if currently in a flow context
 * @param {boolean} inCollection - true if currently in a collection context
 * @param {number} indent - Current level of indentation
 * @param {number} lineStart - Start of the current line
 * @param {Node} parent - The parent of the node
 * @param {string} src - Source of the YAML document
 */


class ParseContext {
  static parseType(src, offset, inFlow) {
    switch (src[offset]) {
      case '*':
        return PlainValue$5.Type.ALIAS;

      case '>':
        return PlainValue$5.Type.BLOCK_FOLDED;

      case '|':
        return PlainValue$5.Type.BLOCK_LITERAL;

      case '{':
        return PlainValue$5.Type.FLOW_MAP;

      case '[':
        return PlainValue$5.Type.FLOW_SEQ;

      case '?':
        return !inFlow && PlainValue$5.Node.atBlank(src, offset + 1, true) ? PlainValue$5.Type.MAP_KEY : PlainValue$5.Type.PLAIN;

      case ':':
        return !inFlow && PlainValue$5.Node.atBlank(src, offset + 1, true) ? PlainValue$5.Type.MAP_VALUE : PlainValue$5.Type.PLAIN;

      case '-':
        return !inFlow && PlainValue$5.Node.atBlank(src, offset + 1, true) ? PlainValue$5.Type.SEQ_ITEM : PlainValue$5.Type.PLAIN;

      case '"':
        return PlainValue$5.Type.QUOTE_DOUBLE;

      case "'":
        return PlainValue$5.Type.QUOTE_SINGLE;

      default:
        return PlainValue$5.Type.PLAIN;
    }
  }

  constructor(orig = {}, {
    atLineStart,
    inCollection,
    inFlow,
    indent,
    lineStart,
    parent
  } = {}) {
    PlainValue$5._defineProperty(this, "parseNode", (overlay, start) => {
      if (PlainValue$5.Node.atDocumentBoundary(this.src, start)) return null;
      const context = new ParseContext(this, overlay);
      const {
        props,
        type,
        valueStart
      } = context.parseProps(start);
      const node = createNewNode(type, props);
      let offset = node.parse(context, valueStart);
      node.range = new PlainValue$5.Range(start, offset);
      /* istanbul ignore if */

      if (offset <= start) {
        // This should never happen, but if it does, let's make sure to at least
        // step one character forward to avoid a busy loop.
        node.error = new Error(`Node#parse consumed no characters`);
        node.error.parseEnd = offset;
        node.error.source = node;
        node.range.end = start + 1;
      }

      if (context.nodeStartsCollection(node)) {
        if (!node.error && !context.atLineStart && context.parent.type === PlainValue$5.Type.DOCUMENT) {
          node.error = new PlainValue$5.YAMLSyntaxError(node, 'Block collection must not have preceding content here (e.g. directives-end indicator)');
        }

        const collection = new Collection$1(node);
        offset = collection.parse(new ParseContext(context), offset);
        collection.range = new PlainValue$5.Range(start, offset);
        return collection;
      }

      return node;
    });

    this.atLineStart = atLineStart != null ? atLineStart : orig.atLineStart || false;
    this.inCollection = inCollection != null ? inCollection : orig.inCollection || false;
    this.inFlow = inFlow != null ? inFlow : orig.inFlow || false;
    this.indent = indent != null ? indent : orig.indent;
    this.lineStart = lineStart != null ? lineStart : orig.lineStart;
    this.parent = parent != null ? parent : orig.parent || {};
    this.root = orig.root;
    this.src = orig.src;
  }

  nodeStartsCollection(node) {
    const {
      inCollection,
      inFlow,
      src
    } = this;
    if (inCollection || inFlow) return false;
    if (node instanceof CollectionItem) return true; // check for implicit key

    let offset = node.range.end;
    if (src[offset] === '\n' || src[offset - 1] === '\n') return false;
    offset = PlainValue$5.Node.endOfWhiteSpace(src, offset);
    return src[offset] === ':';
  } // Anchor and tag are before type, which determines the node implementation
  // class; hence this intermediate step.


  parseProps(offset) {
    const {
      inFlow,
      parent,
      src
    } = this;
    const props = [];
    let lineHasProps = false;
    offset = this.atLineStart ? PlainValue$5.Node.endOfIndent(src, offset) : PlainValue$5.Node.endOfWhiteSpace(src, offset);
    let ch = src[offset];

    while (ch === PlainValue$5.Char.ANCHOR || ch === PlainValue$5.Char.COMMENT || ch === PlainValue$5.Char.TAG || ch === '\n') {
      if (ch === '\n') {
        let inEnd = offset;
        let lineStart;

        do {
          lineStart = inEnd + 1;
          inEnd = PlainValue$5.Node.endOfIndent(src, lineStart);
        } while (src[inEnd] === '\n');

        const indentDiff = inEnd - (lineStart + this.indent);
        const noIndicatorAsIndent = parent.type === PlainValue$5.Type.SEQ_ITEM && parent.context.atLineStart;
        if (src[inEnd] !== '#' && !PlainValue$5.Node.nextNodeIsIndented(src[inEnd], indentDiff, !noIndicatorAsIndent)) break;
        this.atLineStart = true;
        this.lineStart = lineStart;
        lineHasProps = false;
        offset = inEnd;
      } else if (ch === PlainValue$5.Char.COMMENT) {
        const end = PlainValue$5.Node.endOfLine(src, offset + 1);
        props.push(new PlainValue$5.Range(offset, end));
        offset = end;
      } else {
        let end = PlainValue$5.Node.endOfIdentifier(src, offset + 1);

        if (ch === PlainValue$5.Char.TAG && src[end] === ',' && /^[a-zA-Z0-9-]+\.[a-zA-Z0-9-]+,\d\d\d\d(-\d\d){0,2}\/\S/.test(src.slice(offset + 1, end + 13))) {
          // Let's presume we're dealing with a YAML 1.0 domain tag here, rather
          // than an empty but 'foo.bar' private-tagged node in a flow collection
          // followed without whitespace by a plain string starting with a year
          // or date divided by something.
          end = PlainValue$5.Node.endOfIdentifier(src, end + 5);
        }

        props.push(new PlainValue$5.Range(offset, end));
        lineHasProps = true;
        offset = PlainValue$5.Node.endOfWhiteSpace(src, end);
      }

      ch = src[offset];
    } // '- &a : b' has an anchor on an empty node


    if (lineHasProps && ch === ':' && PlainValue$5.Node.atBlank(src, offset + 1, true)) offset -= 1;
    const type = ParseContext.parseType(src, offset, inFlow);
    return {
      props,
      type,
      valueStart: offset
    };
  }
  /**
   * Parses a node from the source
   * @param {ParseContext} overlay
   * @param {number} start - Index of first non-whitespace character for the node
   * @returns {?Node} - null if at a document boundary
   */


}

// Published as 'yaml/parse-cst'
function parse$h(src) {
  const cr = [];

  if (src.indexOf('\r') !== -1) {
    src = src.replace(/\r\n?/g, (match, offset) => {
      if (match.length > 1) cr.push(offset);
      return '\n';
    });
  }

  const documents = [];
  let offset = 0;

  do {
    const doc = new Document$3();
    const context = new ParseContext({
      src
    });
    offset = doc.parse(context, offset);
    documents.push(doc);
  } while (offset < src.length);

  documents.setOrigRanges = () => {
    if (cr.length === 0) return false;

    for (let i = 1; i < cr.length; ++i) cr[i] -= i;

    let crOffset = 0;

    for (let i = 0; i < documents.length; ++i) {
      crOffset = documents[i].setOrigRanges(cr, crOffset);
    }

    cr.splice(0, cr.length);
    return true;
  };

  documents.toString = () => documents.join('...\n');

  return documents;
}

parseCst$1.parse = parse$h;

var Document9b4560a1 = {};

var resolveSeqD03cb037 = {};

var PlainValue$4 = PlainValueEc8e588e;

function addCommentBefore(str, indent, comment) {
  if (!comment) return str;
  const cc = comment.replace(/[\s\S]^/gm, `$&${indent}#`);
  return `#${cc}\n${indent}${str}`;
}
function addComment(str, indent, comment) {
  return !comment ? str : comment.indexOf('\n') === -1 ? `${str} #${comment}` : `${str}\n` + comment.replace(/^/gm, `${indent || ''}#`);
}

class Node$1 {}

function toJSON(value, arg, ctx) {
  if (Array.isArray(value)) return value.map((v, i) => toJSON(v, String(i), ctx));

  if (value && typeof value.toJSON === 'function') {
    const anchor = ctx && ctx.anchors && ctx.anchors.get(value);
    if (anchor) ctx.onCreate = res => {
      anchor.res = res;
      delete ctx.onCreate;
    };
    const res = value.toJSON(arg, ctx);
    if (anchor && ctx.onCreate) ctx.onCreate(res);
    return res;
  }

  if ((!ctx || !ctx.keep) && typeof value === 'bigint') return Number(value);
  return value;
}

class Scalar extends Node$1 {
  constructor(value) {
    super();
    this.value = value;
  }

  toJSON(arg, ctx) {
    return ctx && ctx.keep ? this.value : toJSON(this.value, arg, ctx);
  }

  toString() {
    return String(this.value);
  }

}

function collectionFromPath(schema, path, value) {
  let v = value;

  for (let i = path.length - 1; i >= 0; --i) {
    const k = path[i];

    if (Number.isInteger(k) && k >= 0) {
      const a = [];
      a[k] = v;
      v = a;
    } else {
      const o = {};
      Object.defineProperty(o, k, {
        value: v,
        writable: true,
        enumerable: true,
        configurable: true
      });
      v = o;
    }
  }

  return schema.createNode(v, false);
} // null, undefined, or an empty non-string iterable (e.g. [])


const isEmptyPath = path => path == null || typeof path === 'object' && path[Symbol.iterator]().next().done;
class Collection extends Node$1 {
  constructor(schema) {
    super();

    PlainValue$4._defineProperty(this, "items", []);

    this.schema = schema;
  }

  addIn(path, value) {
    if (isEmptyPath(path)) this.add(value);else {
      const [key, ...rest] = path;
      const node = this.get(key, true);
      if (node instanceof Collection) node.addIn(rest, value);else if (node === undefined && this.schema) this.set(key, collectionFromPath(this.schema, rest, value));else throw new Error(`Expected YAML collection at ${key}. Remaining path: ${rest}`);
    }
  }

  deleteIn([key, ...rest]) {
    if (rest.length === 0) return this.delete(key);
    const node = this.get(key, true);
    if (node instanceof Collection) return node.deleteIn(rest);else throw new Error(`Expected YAML collection at ${key}. Remaining path: ${rest}`);
  }

  getIn([key, ...rest], keepScalar) {
    const node = this.get(key, true);
    if (rest.length === 0) return !keepScalar && node instanceof Scalar ? node.value : node;else return node instanceof Collection ? node.getIn(rest, keepScalar) : undefined;
  }

  hasAllNullValues() {
    return this.items.every(node => {
      if (!node || node.type !== 'PAIR') return false;
      const n = node.value;
      return n == null || n instanceof Scalar && n.value == null && !n.commentBefore && !n.comment && !n.tag;
    });
  }

  hasIn([key, ...rest]) {
    if (rest.length === 0) return this.has(key);
    const node = this.get(key, true);
    return node instanceof Collection ? node.hasIn(rest) : false;
  }

  setIn([key, ...rest], value) {
    if (rest.length === 0) {
      this.set(key, value);
    } else {
      const node = this.get(key, true);
      if (node instanceof Collection) node.setIn(rest, value);else if (node === undefined && this.schema) this.set(key, collectionFromPath(this.schema, rest, value));else throw new Error(`Expected YAML collection at ${key}. Remaining path: ${rest}`);
    }
  } // overridden in implementations

  /* istanbul ignore next */


  toJSON() {
    return null;
  }

  toString(ctx, {
    blockItem,
    flowChars,
    isMap,
    itemIndent
  }, onComment, onChompKeep) {
    const {
      indent,
      indentStep,
      stringify
    } = ctx;
    const inFlow = this.type === PlainValue$4.Type.FLOW_MAP || this.type === PlainValue$4.Type.FLOW_SEQ || ctx.inFlow;
    if (inFlow) itemIndent += indentStep;
    const allNullValues = isMap && this.hasAllNullValues();
    ctx = Object.assign({}, ctx, {
      allNullValues,
      indent: itemIndent,
      inFlow,
      type: null
    });
    let chompKeep = false;
    let hasItemWithNewLine = false;
    const nodes = this.items.reduce((nodes, item, i) => {
      let comment;

      if (item) {
        if (!chompKeep && item.spaceBefore) nodes.push({
          type: 'comment',
          str: ''
        });
        if (item.commentBefore) item.commentBefore.match(/^.*$/gm).forEach(line => {
          nodes.push({
            type: 'comment',
            str: `#${line}`
          });
        });
        if (item.comment) comment = item.comment;
        if (inFlow && (!chompKeep && item.spaceBefore || item.commentBefore || item.comment || item.key && (item.key.commentBefore || item.key.comment) || item.value && (item.value.commentBefore || item.value.comment))) hasItemWithNewLine = true;
      }

      chompKeep = false;
      let str = stringify(item, ctx, () => comment = null, () => chompKeep = true);
      if (inFlow && !hasItemWithNewLine && str.includes('\n')) hasItemWithNewLine = true;
      if (inFlow && i < this.items.length - 1) str += ',';
      str = addComment(str, itemIndent, comment);
      if (chompKeep && (comment || inFlow)) chompKeep = false;
      nodes.push({
        type: 'item',
        str
      });
      return nodes;
    }, []);
    let str;

    if (nodes.length === 0) {
      str = flowChars.start + flowChars.end;
    } else if (inFlow) {
      const {
        start,
        end
      } = flowChars;
      const strings = nodes.map(n => n.str);

      if (hasItemWithNewLine || strings.reduce((sum, str) => sum + str.length + 2, 2) > Collection.maxFlowStringSingleLineLength) {
        str = start;

        for (const s of strings) {
          str += s ? `\n${indentStep}${indent}${s}` : '\n';
        }

        str += `\n${indent}${end}`;
      } else {
        str = `${start} ${strings.join(' ')} ${end}`;
      }
    } else {
      const strings = nodes.map(blockItem);
      str = strings.shift();

      for (const s of strings) str += s ? `\n${indent}${s}` : '\n';
    }

    if (this.comment) {
      str += '\n' + this.comment.replace(/^/gm, `${indent}#`);
      if (onComment) onComment();
    } else if (chompKeep && onChompKeep) onChompKeep();

    return str;
  }

}

PlainValue$4._defineProperty(Collection, "maxFlowStringSingleLineLength", 60);

function asItemIndex(key) {
  let idx = key instanceof Scalar ? key.value : key;
  if (idx && typeof idx === 'string') idx = Number(idx);
  return Number.isInteger(idx) && idx >= 0 ? idx : null;
}

class YAMLSeq extends Collection {
  add(value) {
    this.items.push(value);
  }

  delete(key) {
    const idx = asItemIndex(key);
    if (typeof idx !== 'number') return false;
    const del = this.items.splice(idx, 1);
    return del.length > 0;
  }

  get(key, keepScalar) {
    const idx = asItemIndex(key);
    if (typeof idx !== 'number') return undefined;
    const it = this.items[idx];
    return !keepScalar && it instanceof Scalar ? it.value : it;
  }

  has(key) {
    const idx = asItemIndex(key);
    return typeof idx === 'number' && idx < this.items.length;
  }

  set(key, value) {
    const idx = asItemIndex(key);
    if (typeof idx !== 'number') throw new Error(`Expected a valid index, not ${key}.`);
    this.items[idx] = value;
  }

  toJSON(_, ctx) {
    const seq = [];
    if (ctx && ctx.onCreate) ctx.onCreate(seq);
    let i = 0;

    for (const item of this.items) seq.push(toJSON(item, String(i++), ctx));

    return seq;
  }

  toString(ctx, onComment, onChompKeep) {
    if (!ctx) return JSON.stringify(this);
    return super.toString(ctx, {
      blockItem: n => n.type === 'comment' ? n.str : `- ${n.str}`,
      flowChars: {
        start: '[',
        end: ']'
      },
      isMap: false,
      itemIndent: (ctx.indent || '') + '  '
    }, onComment, onChompKeep);
  }

}

const stringifyKey = (key, jsKey, ctx) => {
  if (jsKey === null) return '';
  if (typeof jsKey !== 'object') return String(jsKey);
  if (key instanceof Node$1 && ctx && ctx.doc) return key.toString({
    anchors: Object.create(null),
    doc: ctx.doc,
    indent: '',
    indentStep: ctx.indentStep,
    inFlow: true,
    inStringifyKey: true,
    stringify: ctx.stringify
  });
  return JSON.stringify(jsKey);
};

class Pair extends Node$1 {
  constructor(key, value = null) {
    super();
    this.key = key;
    this.value = value;
    this.type = Pair.Type.PAIR;
  }

  get commentBefore() {
    return this.key instanceof Node$1 ? this.key.commentBefore : undefined;
  }

  set commentBefore(cb) {
    if (this.key == null) this.key = new Scalar(null);
    if (this.key instanceof Node$1) this.key.commentBefore = cb;else {
      const msg = 'Pair.commentBefore is an alias for Pair.key.commentBefore. To set it, the key must be a Node.';
      throw new Error(msg);
    }
  }

  addToJSMap(ctx, map) {
    const key = toJSON(this.key, '', ctx);

    if (map instanceof Map) {
      const value = toJSON(this.value, key, ctx);
      map.set(key, value);
    } else if (map instanceof Set) {
      map.add(key);
    } else {
      const stringKey = stringifyKey(this.key, key, ctx);
      const value = toJSON(this.value, stringKey, ctx);
      if (stringKey in map) Object.defineProperty(map, stringKey, {
        value,
        writable: true,
        enumerable: true,
        configurable: true
      });else map[stringKey] = value;
    }

    return map;
  }

  toJSON(_, ctx) {
    const pair = ctx && ctx.mapAsMap ? new Map() : {};
    return this.addToJSMap(ctx, pair);
  }

  toString(ctx, onComment, onChompKeep) {
    if (!ctx || !ctx.doc) return JSON.stringify(this);
    const {
      indent: indentSize,
      indentSeq,
      simpleKeys
    } = ctx.doc.options;
    let {
      key,
      value
    } = this;
    let keyComment = key instanceof Node$1 && key.comment;

    if (simpleKeys) {
      if (keyComment) {
        throw new Error('With simple keys, key nodes cannot have comments');
      }

      if (key instanceof Collection) {
        const msg = 'With simple keys, collection cannot be used as a key value';
        throw new Error(msg);
      }
    }

    let explicitKey = !simpleKeys && (!key || keyComment || (key instanceof Node$1 ? key instanceof Collection || key.type === PlainValue$4.Type.BLOCK_FOLDED || key.type === PlainValue$4.Type.BLOCK_LITERAL : typeof key === 'object'));
    const {
      doc,
      indent,
      indentStep,
      stringify
    } = ctx;
    ctx = Object.assign({}, ctx, {
      implicitKey: !explicitKey,
      indent: indent + indentStep
    });
    let chompKeep = false;
    let str = stringify(key, ctx, () => keyComment = null, () => chompKeep = true);
    str = addComment(str, ctx.indent, keyComment);

    if (!explicitKey && str.length > 1024) {
      if (simpleKeys) throw new Error('With simple keys, single line scalar must not span more than 1024 characters');
      explicitKey = true;
    }

    if (ctx.allNullValues && !simpleKeys) {
      if (this.comment) {
        str = addComment(str, ctx.indent, this.comment);
        if (onComment) onComment();
      } else if (chompKeep && !keyComment && onChompKeep) onChompKeep();

      return ctx.inFlow && !explicitKey ? str : `? ${str}`;
    }

    str = explicitKey ? `? ${str}\n${indent}:` : `${str}:`;

    if (this.comment) {
      // expected (but not strictly required) to be a single-line comment
      str = addComment(str, ctx.indent, this.comment);
      if (onComment) onComment();
    }

    let vcb = '';
    let valueComment = null;

    if (value instanceof Node$1) {
      if (value.spaceBefore) vcb = '\n';

      if (value.commentBefore) {
        const cs = value.commentBefore.replace(/^/gm, `${ctx.indent}#`);
        vcb += `\n${cs}`;
      }

      valueComment = value.comment;
    } else if (value && typeof value === 'object') {
      value = doc.schema.createNode(value, true);
    }

    ctx.implicitKey = false;
    if (!explicitKey && !this.comment && value instanceof Scalar) ctx.indentAtStart = str.length + 1;
    chompKeep = false;

    if (!indentSeq && indentSize >= 2 && !ctx.inFlow && !explicitKey && value instanceof YAMLSeq && value.type !== PlainValue$4.Type.FLOW_SEQ && !value.tag && !doc.anchors.getName(value)) {
      // If indentSeq === false, consider '- ' as part of indentation where possible
      ctx.indent = ctx.indent.substr(2);
    }

    const valueStr = stringify(value, ctx, () => valueComment = null, () => chompKeep = true);
    let ws = ' ';

    if (vcb || this.comment) {
      ws = `${vcb}\n${ctx.indent}`;
    } else if (!explicitKey && value instanceof Collection) {
      const flow = valueStr[0] === '[' || valueStr[0] === '{';
      if (!flow || valueStr.includes('\n')) ws = `\n${ctx.indent}`;
    } else if (valueStr[0] === '\n') ws = '';

    if (chompKeep && !valueComment && onChompKeep) onChompKeep();
    return addComment(str + ws + valueStr, ctx.indent, valueComment);
  }

}

PlainValue$4._defineProperty(Pair, "Type", {
  PAIR: 'PAIR',
  MERGE_PAIR: 'MERGE_PAIR'
});

const getAliasCount = (node, anchors) => {
  if (node instanceof Alias) {
    const anchor = anchors.get(node.source);
    return anchor.count * anchor.aliasCount;
  } else if (node instanceof Collection) {
    let count = 0;

    for (const item of node.items) {
      const c = getAliasCount(item, anchors);
      if (c > count) count = c;
    }

    return count;
  } else if (node instanceof Pair) {
    const kc = getAliasCount(node.key, anchors);
    const vc = getAliasCount(node.value, anchors);
    return Math.max(kc, vc);
  }

  return 1;
};

class Alias extends Node$1 {
  static stringify({
    range,
    source
  }, {
    anchors,
    doc,
    implicitKey,
    inStringifyKey
  }) {
    let anchor = Object.keys(anchors).find(a => anchors[a] === source);
    if (!anchor && inStringifyKey) anchor = doc.anchors.getName(source) || doc.anchors.newName();
    if (anchor) return `*${anchor}${implicitKey ? ' ' : ''}`;
    const msg = doc.anchors.getName(source) ? 'Alias node must be after source node' : 'Source node not found for alias node';
    throw new Error(`${msg} [${range}]`);
  }

  constructor(source) {
    super();
    this.source = source;
    this.type = PlainValue$4.Type.ALIAS;
  }

  set tag(t) {
    throw new Error('Alias nodes cannot have tags');
  }

  toJSON(arg, ctx) {
    if (!ctx) return toJSON(this.source, arg, ctx);
    const {
      anchors,
      maxAliasCount
    } = ctx;
    const anchor = anchors.get(this.source);
    /* istanbul ignore if */

    if (!anchor || anchor.res === undefined) {
      const msg = 'This should not happen: Alias anchor was not resolved?';
      if (this.cstNode) throw new PlainValue$4.YAMLReferenceError(this.cstNode, msg);else throw new ReferenceError(msg);
    }

    if (maxAliasCount >= 0) {
      anchor.count += 1;
      if (anchor.aliasCount === 0) anchor.aliasCount = getAliasCount(this.source, anchors);

      if (anchor.count * anchor.aliasCount > maxAliasCount) {
        const msg = 'Excessive alias count indicates a resource exhaustion attack';
        if (this.cstNode) throw new PlainValue$4.YAMLReferenceError(this.cstNode, msg);else throw new ReferenceError(msg);
      }
    }

    return anchor.res;
  } // Only called when stringifying an alias mapping key while constructing
  // Object output.


  toString(ctx) {
    return Alias.stringify(this, ctx);
  }

}

PlainValue$4._defineProperty(Alias, "default", true);

function findPair(items, key) {
  const k = key instanceof Scalar ? key.value : key;

  for (const it of items) {
    if (it instanceof Pair) {
      if (it.key === key || it.key === k) return it;
      if (it.key && it.key.value === k) return it;
    }
  }

  return undefined;
}
class YAMLMap extends Collection {
  add(pair, overwrite) {
    if (!pair) pair = new Pair(pair);else if (!(pair instanceof Pair)) pair = new Pair(pair.key || pair, pair.value);
    const prev = findPair(this.items, pair.key);
    const sortEntries = this.schema && this.schema.sortMapEntries;

    if (prev) {
      if (overwrite) prev.value = pair.value;else throw new Error(`Key ${pair.key} already set`);
    } else if (sortEntries) {
      const i = this.items.findIndex(item => sortEntries(pair, item) < 0);
      if (i === -1) this.items.push(pair);else this.items.splice(i, 0, pair);
    } else {
      this.items.push(pair);
    }
  }

  delete(key) {
    const it = findPair(this.items, key);
    if (!it) return false;
    const del = this.items.splice(this.items.indexOf(it), 1);
    return del.length > 0;
  }

  get(key, keepScalar) {
    const it = findPair(this.items, key);
    const node = it && it.value;
    return !keepScalar && node instanceof Scalar ? node.value : node;
  }

  has(key) {
    return !!findPair(this.items, key);
  }

  set(key, value) {
    this.add(new Pair(key, value), true);
  }
  /**
   * @param {*} arg ignored
   * @param {*} ctx Conversion context, originally set in Document#toJSON()
   * @param {Class} Type If set, forces the returned collection type
   * @returns {*} Instance of Type, Map, or Object
   */


  toJSON(_, ctx, Type) {
    const map = Type ? new Type() : ctx && ctx.mapAsMap ? new Map() : {};
    if (ctx && ctx.onCreate) ctx.onCreate(map);

    for (const item of this.items) item.addToJSMap(ctx, map);

    return map;
  }

  toString(ctx, onComment, onChompKeep) {
    if (!ctx) return JSON.stringify(this);

    for (const item of this.items) {
      if (!(item instanceof Pair)) throw new Error(`Map items must all be pairs; found ${JSON.stringify(item)} instead`);
    }

    return super.toString(ctx, {
      blockItem: n => n.str,
      flowChars: {
        start: '{',
        end: '}'
      },
      isMap: true,
      itemIndent: ctx.indent || ''
    }, onComment, onChompKeep);
  }

}

const MERGE_KEY = '<<';
class Merge extends Pair {
  constructor(pair) {
    if (pair instanceof Pair) {
      let seq = pair.value;

      if (!(seq instanceof YAMLSeq)) {
        seq = new YAMLSeq();
        seq.items.push(pair.value);
        seq.range = pair.value.range;
      }

      super(pair.key, seq);
      this.range = pair.range;
    } else {
      super(new Scalar(MERGE_KEY), new YAMLSeq());
    }

    this.type = Pair.Type.MERGE_PAIR;
  } // If the value associated with a merge key is a single mapping node, each of
  // its key/value pairs is inserted into the current mapping, unless the key
  // already exists in it. If the value associated with the merge key is a
  // sequence, then this sequence is expected to contain mapping nodes and each
  // of these nodes is merged in turn according to its order in the sequence.
  // Keys in mapping nodes earlier in the sequence override keys specified in
  // later mapping nodes. -- http://yaml.org/type/merge.html


  addToJSMap(ctx, map) {
    for (const {
      source
    } of this.value.items) {
      if (!(source instanceof YAMLMap)) throw new Error('Merge sources must be maps');
      const srcMap = source.toJSON(null, ctx, Map);

      for (const [key, value] of srcMap) {
        if (map instanceof Map) {
          if (!map.has(key)) map.set(key, value);
        } else if (map instanceof Set) {
          map.add(key);
        } else if (!Object.prototype.hasOwnProperty.call(map, key)) {
          Object.defineProperty(map, key, {
            value,
            writable: true,
            enumerable: true,
            configurable: true
          });
        }
      }
    }

    return map;
  }

  toString(ctx, onComment) {
    const seq = this.value;
    if (seq.items.length > 1) return super.toString(ctx, onComment);
    this.value = seq.items[0];
    const str = super.toString(ctx, onComment);
    this.value = seq;
    return str;
  }

}

const binaryOptions = {
  defaultType: PlainValue$4.Type.BLOCK_LITERAL,
  lineWidth: 76
};
const boolOptions = {
  trueStr: 'true',
  falseStr: 'false'
};
const intOptions = {
  asBigInt: false
};
const nullOptions = {
  nullStr: 'null'
};
const strOptions = {
  defaultType: PlainValue$4.Type.PLAIN,
  doubleQuoted: {
    jsonEncoding: false,
    minMultiLineLength: 40
  },
  fold: {
    lineWidth: 80,
    minContentWidth: 20
  }
};

function resolveScalar(str, tags, scalarFallback) {
  for (const {
    format,
    test,
    resolve
  } of tags) {
    if (test) {
      const match = str.match(test);

      if (match) {
        let res = resolve.apply(null, match);
        if (!(res instanceof Scalar)) res = new Scalar(res);
        if (format) res.format = format;
        return res;
      }
    }
  }

  if (scalarFallback) str = scalarFallback(str);
  return new Scalar(str);
}

const FOLD_FLOW = 'flow';
const FOLD_BLOCK = 'block';
const FOLD_QUOTED = 'quoted'; // presumes i+1 is at the start of a line
// returns index of last newline in more-indented block

const consumeMoreIndentedLines = (text, i) => {
  let ch = text[i + 1];

  while (ch === ' ' || ch === '\t') {
    do {
      ch = text[i += 1];
    } while (ch && ch !== '\n');

    ch = text[i + 1];
  }

  return i;
};
/**
 * Tries to keep input at up to `lineWidth` characters, splitting only on spaces
 * not followed by newlines or spaces unless `mode` is `'quoted'`. Lines are
 * terminated with `\n` and started with `indent`.
 *
 * @param {string} text
 * @param {string} indent
 * @param {string} [mode='flow'] `'block'` prevents more-indented lines
 *   from being folded; `'quoted'` allows for `\` escapes, including escaped
 *   newlines
 * @param {Object} options
 * @param {number} [options.indentAtStart] Accounts for leading contents on
 *   the first line, defaulting to `indent.length`
 * @param {number} [options.lineWidth=80]
 * @param {number} [options.minContentWidth=20] Allow highly indented lines to
 *   stretch the line width or indent content from the start
 * @param {function} options.onFold Called once if the text is folded
 * @param {function} options.onFold Called once if any line of text exceeds
 *   lineWidth characters
 */


function foldFlowLines(text, indent, mode, {
  indentAtStart,
  lineWidth = 80,
  minContentWidth = 20,
  onFold,
  onOverflow
}) {
  if (!lineWidth || lineWidth < 0) return text;
  const endStep = Math.max(1 + minContentWidth, 1 + lineWidth - indent.length);
  if (text.length <= endStep) return text;
  const folds = [];
  const escapedFolds = {};
  let end = lineWidth - indent.length;

  if (typeof indentAtStart === 'number') {
    if (indentAtStart > lineWidth - Math.max(2, minContentWidth)) folds.push(0);else end = lineWidth - indentAtStart;
  }

  let split = undefined;
  let prev = undefined;
  let overflow = false;
  let i = -1;
  let escStart = -1;
  let escEnd = -1;

  if (mode === FOLD_BLOCK) {
    i = consumeMoreIndentedLines(text, i);
    if (i !== -1) end = i + endStep;
  }

  for (let ch; ch = text[i += 1];) {
    if (mode === FOLD_QUOTED && ch === '\\') {
      escStart = i;

      switch (text[i + 1]) {
        case 'x':
          i += 3;
          break;

        case 'u':
          i += 5;
          break;

        case 'U':
          i += 9;
          break;

        default:
          i += 1;
      }

      escEnd = i;
    }

    if (ch === '\n') {
      if (mode === FOLD_BLOCK) i = consumeMoreIndentedLines(text, i);
      end = i + endStep;
      split = undefined;
    } else {
      if (ch === ' ' && prev && prev !== ' ' && prev !== '\n' && prev !== '\t') {
        // space surrounded by non-space can be replaced with newline + indent
        const next = text[i + 1];
        if (next && next !== ' ' && next !== '\n' && next !== '\t') split = i;
      }

      if (i >= end) {
        if (split) {
          folds.push(split);
          end = split + endStep;
          split = undefined;
        } else if (mode === FOLD_QUOTED) {
          // white-space collected at end may stretch past lineWidth
          while (prev === ' ' || prev === '\t') {
            prev = ch;
            ch = text[i += 1];
            overflow = true;
          } // Account for newline escape, but don't break preceding escape


          const j = i > escEnd + 1 ? i - 2 : escStart - 1; // Bail out if lineWidth & minContentWidth are shorter than an escape string

          if (escapedFolds[j]) return text;
          folds.push(j);
          escapedFolds[j] = true;
          end = j + endStep;
          split = undefined;
        } else {
          overflow = true;
        }
      }
    }

    prev = ch;
  }

  if (overflow && onOverflow) onOverflow();
  if (folds.length === 0) return text;
  if (onFold) onFold();
  let res = text.slice(0, folds[0]);

  for (let i = 0; i < folds.length; ++i) {
    const fold = folds[i];
    const end = folds[i + 1] || text.length;
    if (fold === 0) res = `\n${indent}${text.slice(0, end)}`;else {
      if (mode === FOLD_QUOTED && escapedFolds[fold]) res += `${text[fold]}\\`;
      res += `\n${indent}${text.slice(fold + 1, end)}`;
    }
  }

  return res;
}

const getFoldOptions = ({
  indentAtStart
}) => indentAtStart ? Object.assign({
  indentAtStart
}, strOptions.fold) : strOptions.fold; // Also checks for lines starting with %, as parsing the output as YAML 1.1 will
// presume that's starting a new document.


const containsDocumentMarker = str => /^(%|---|\.\.\.)/m.test(str);

function lineLengthOverLimit(str, lineWidth, indentLength) {
  if (!lineWidth || lineWidth < 0) return false;
  const limit = lineWidth - indentLength;
  const strLen = str.length;
  if (strLen <= limit) return false;

  for (let i = 0, start = 0; i < strLen; ++i) {
    if (str[i] === '\n') {
      if (i - start > limit) return true;
      start = i + 1;
      if (strLen - start <= limit) return false;
    }
  }

  return true;
}

function doubleQuotedString(value, ctx) {
  const {
    implicitKey
  } = ctx;
  const {
    jsonEncoding,
    minMultiLineLength
  } = strOptions.doubleQuoted;
  const json = JSON.stringify(value);
  if (jsonEncoding) return json;
  const indent = ctx.indent || (containsDocumentMarker(value) ? '  ' : '');
  let str = '';
  let start = 0;

  for (let i = 0, ch = json[i]; ch; ch = json[++i]) {
    if (ch === ' ' && json[i + 1] === '\\' && json[i + 2] === 'n') {
      // space before newline needs to be escaped to not be folded
      str += json.slice(start, i) + '\\ ';
      i += 1;
      start = i;
      ch = '\\';
    }

    if (ch === '\\') switch (json[i + 1]) {
      case 'u':
        {
          str += json.slice(start, i);
          const code = json.substr(i + 2, 4);

          switch (code) {
            case '0000':
              str += '\\0';
              break;

            case '0007':
              str += '\\a';
              break;

            case '000b':
              str += '\\v';
              break;

            case '001b':
              str += '\\e';
              break;

            case '0085':
              str += '\\N';
              break;

            case '00a0':
              str += '\\_';
              break;

            case '2028':
              str += '\\L';
              break;

            case '2029':
              str += '\\P';
              break;

            default:
              if (code.substr(0, 2) === '00') str += '\\x' + code.substr(2);else str += json.substr(i, 6);
          }

          i += 5;
          start = i + 1;
        }
        break;

      case 'n':
        if (implicitKey || json[i + 2] === '"' || json.length < minMultiLineLength) {
          i += 1;
        } else {
          // folding will eat first newline
          str += json.slice(start, i) + '\n\n';

          while (json[i + 2] === '\\' && json[i + 3] === 'n' && json[i + 4] !== '"') {
            str += '\n';
            i += 2;
          }

          str += indent; // space after newline needs to be escaped to not be folded

          if (json[i + 2] === ' ') str += '\\';
          i += 1;
          start = i + 1;
        }

        break;

      default:
        i += 1;
    }
  }

  str = start ? str + json.slice(start) : json;
  return implicitKey ? str : foldFlowLines(str, indent, FOLD_QUOTED, getFoldOptions(ctx));
}

function singleQuotedString(value, ctx) {
  if (ctx.implicitKey) {
    if (/\n/.test(value)) return doubleQuotedString(value, ctx);
  } else {
    // single quoted string can't have leading or trailing whitespace around newline
    if (/[ \t]\n|\n[ \t]/.test(value)) return doubleQuotedString(value, ctx);
  }

  const indent = ctx.indent || (containsDocumentMarker(value) ? '  ' : '');
  const res = "'" + value.replace(/'/g, "''").replace(/\n+/g, `$&\n${indent}`) + "'";
  return ctx.implicitKey ? res : foldFlowLines(res, indent, FOLD_FLOW, getFoldOptions(ctx));
}

function blockString({
  comment,
  type,
  value
}, ctx, onComment, onChompKeep) {
  // 1. Block can't end in whitespace unless the last line is non-empty.
  // 2. Strings consisting of only whitespace are best rendered explicitly.
  if (/\n[\t ]+$/.test(value) || /^\s*$/.test(value)) {
    return doubleQuotedString(value, ctx);
  }

  const indent = ctx.indent || (ctx.forceBlockIndent || containsDocumentMarker(value) ? '  ' : '');
  const indentSize = indent ? '2' : '1'; // root is at -1

  const literal = type === PlainValue$4.Type.BLOCK_FOLDED ? false : type === PlainValue$4.Type.BLOCK_LITERAL ? true : !lineLengthOverLimit(value, strOptions.fold.lineWidth, indent.length);
  let header = literal ? '|' : '>';
  if (!value) return header + '\n';
  let wsStart = '';
  let wsEnd = '';
  value = value.replace(/[\n\t ]*$/, ws => {
    const n = ws.indexOf('\n');

    if (n === -1) {
      header += '-'; // strip
    } else if (value === ws || n !== ws.length - 1) {
      header += '+'; // keep

      if (onChompKeep) onChompKeep();
    }

    wsEnd = ws.replace(/\n$/, '');
    return '';
  }).replace(/^[\n ]*/, ws => {
    if (ws.indexOf(' ') !== -1) header += indentSize;
    const m = ws.match(/ +$/);

    if (m) {
      wsStart = ws.slice(0, -m[0].length);
      return m[0];
    } else {
      wsStart = ws;
      return '';
    }
  });
  if (wsEnd) wsEnd = wsEnd.replace(/\n+(?!\n|$)/g, `$&${indent}`);
  if (wsStart) wsStart = wsStart.replace(/\n+/g, `$&${indent}`);

  if (comment) {
    header += ' #' + comment.replace(/ ?[\r\n]+/g, ' ');
    if (onComment) onComment();
  }

  if (!value) return `${header}${indentSize}\n${indent}${wsEnd}`;

  if (literal) {
    value = value.replace(/\n+/g, `$&${indent}`);
    return `${header}\n${indent}${wsStart}${value}${wsEnd}`;
  }

  value = value.replace(/\n+/g, '\n$&').replace(/(?:^|\n)([\t ].*)(?:([\n\t ]*)\n(?![\n\t ]))?/g, '$1$2') // more-indented lines aren't folded
  //         ^ ind.line  ^ empty     ^ capture next empty lines only at end of indent
  .replace(/\n+/g, `$&${indent}`);
  const body = foldFlowLines(`${wsStart}${value}${wsEnd}`, indent, FOLD_BLOCK, strOptions.fold);
  return `${header}\n${indent}${body}`;
}

function plainString(item, ctx, onComment, onChompKeep) {
  const {
    comment,
    type,
    value
  } = item;
  const {
    actualString,
    implicitKey,
    indent,
    inFlow
  } = ctx;

  if (implicitKey && /[\n[\]{},]/.test(value) || inFlow && /[[\]{},]/.test(value)) {
    return doubleQuotedString(value, ctx);
  }

  if (!value || /^[\n\t ,[\]{}#&*!|>'"%@`]|^[?-]$|^[?-][ \t]|[\n:][ \t]|[ \t]\n|[\n\t ]#|[\n\t :]$/.test(value)) {
    // not allowed:
    // - empty string, '-' or '?'
    // - start with an indicator character (except [?:-]) or /[?-] /
    // - '\n ', ': ' or ' \n' anywhere
    // - '#' not preceded by a non-space char
    // - end with ' ' or ':'
    return implicitKey || inFlow || value.indexOf('\n') === -1 ? value.indexOf('"') !== -1 && value.indexOf("'") === -1 ? singleQuotedString(value, ctx) : doubleQuotedString(value, ctx) : blockString(item, ctx, onComment, onChompKeep);
  }

  if (!implicitKey && !inFlow && type !== PlainValue$4.Type.PLAIN && value.indexOf('\n') !== -1) {
    // Where allowed & type not set explicitly, prefer block style for multiline strings
    return blockString(item, ctx, onComment, onChompKeep);
  }

  if (indent === '' && containsDocumentMarker(value)) {
    ctx.forceBlockIndent = true;
    return blockString(item, ctx, onComment, onChompKeep);
  }

  const str = value.replace(/\n+/g, `$&\n${indent}`); // Verify that output will be parsed as a string, as e.g. plain numbers and
  // booleans get parsed with those types in v1.2 (e.g. '42', 'true' & '0.9e-3'),
  // and others in v1.1.

  if (actualString) {
    const {
      tags
    } = ctx.doc.schema;
    const resolved = resolveScalar(str, tags, tags.scalarFallback).value;
    if (typeof resolved !== 'string') return doubleQuotedString(value, ctx);
  }

  const body = implicitKey ? str : foldFlowLines(str, indent, FOLD_FLOW, getFoldOptions(ctx));

  if (comment && !inFlow && (body.indexOf('\n') !== -1 || comment.indexOf('\n') !== -1)) {
    if (onComment) onComment();
    return addCommentBefore(body, indent, comment);
  }

  return body;
}

function stringifyString(item, ctx, onComment, onChompKeep) {
  const {
    defaultType
  } = strOptions;
  const {
    implicitKey,
    inFlow
  } = ctx;
  let {
    type,
    value
  } = item;

  if (typeof value !== 'string') {
    value = String(value);
    item = Object.assign({}, item, {
      value
    });
  }

  const _stringify = _type => {
    switch (_type) {
      case PlainValue$4.Type.BLOCK_FOLDED:
      case PlainValue$4.Type.BLOCK_LITERAL:
        return blockString(item, ctx, onComment, onChompKeep);

      case PlainValue$4.Type.QUOTE_DOUBLE:
        return doubleQuotedString(value, ctx);

      case PlainValue$4.Type.QUOTE_SINGLE:
        return singleQuotedString(value, ctx);

      case PlainValue$4.Type.PLAIN:
        return plainString(item, ctx, onComment, onChompKeep);

      default:
        return null;
    }
  };

  if (type !== PlainValue$4.Type.QUOTE_DOUBLE && /[\x00-\x08\x0b-\x1f\x7f-\x9f]/.test(value)) {
    // force double quotes on control characters
    type = PlainValue$4.Type.QUOTE_DOUBLE;
  } else if ((implicitKey || inFlow) && (type === PlainValue$4.Type.BLOCK_FOLDED || type === PlainValue$4.Type.BLOCK_LITERAL)) {
    // should not happen; blocks are not valid inside flow containers
    type = PlainValue$4.Type.QUOTE_DOUBLE;
  }

  let res = _stringify(type);

  if (res === null) {
    res = _stringify(defaultType);
    if (res === null) throw new Error(`Unsupported default string type ${defaultType}`);
  }

  return res;
}

function stringifyNumber({
  format,
  minFractionDigits,
  tag,
  value
}) {
  if (typeof value === 'bigint') return String(value);
  if (!isFinite(value)) return isNaN(value) ? '.nan' : value < 0 ? '-.inf' : '.inf';
  let n = JSON.stringify(value);

  if (!format && minFractionDigits && (!tag || tag === 'tag:yaml.org,2002:float') && /^\d/.test(n)) {
    let i = n.indexOf('.');

    if (i < 0) {
      i = n.length;
      n += '.';
    }

    let d = minFractionDigits - (n.length - i - 1);

    while (d-- > 0) n += '0';
  }

  return n;
}

function checkFlowCollectionEnd(errors, cst) {
  let char, name;

  switch (cst.type) {
    case PlainValue$4.Type.FLOW_MAP:
      char = '}';
      name = 'flow map';
      break;

    case PlainValue$4.Type.FLOW_SEQ:
      char = ']';
      name = 'flow sequence';
      break;

    default:
      errors.push(new PlainValue$4.YAMLSemanticError(cst, 'Not a flow collection!?'));
      return;
  }

  let lastItem;

  for (let i = cst.items.length - 1; i >= 0; --i) {
    const item = cst.items[i];

    if (!item || item.type !== PlainValue$4.Type.COMMENT) {
      lastItem = item;
      break;
    }
  }

  if (lastItem && lastItem.char !== char) {
    const msg = `Expected ${name} to end with ${char}`;
    let err;

    if (typeof lastItem.offset === 'number') {
      err = new PlainValue$4.YAMLSemanticError(cst, msg);
      err.offset = lastItem.offset + 1;
    } else {
      err = new PlainValue$4.YAMLSemanticError(lastItem, msg);
      if (lastItem.range && lastItem.range.end) err.offset = lastItem.range.end - lastItem.range.start;
    }

    errors.push(err);
  }
}
function checkFlowCommentSpace(errors, comment) {
  const prev = comment.context.src[comment.range.start - 1];

  if (prev !== '\n' && prev !== '\t' && prev !== ' ') {
    const msg = 'Comments must be separated from other tokens by white space characters';
    errors.push(new PlainValue$4.YAMLSemanticError(comment, msg));
  }
}
function getLongKeyError(source, key) {
  const sk = String(key);
  const k = sk.substr(0, 8) + '...' + sk.substr(-8);
  return new PlainValue$4.YAMLSemanticError(source, `The "${k}" key is too long`);
}
function resolveComments(collection, comments) {
  for (const {
    afterKey,
    before,
    comment
  } of comments) {
    let item = collection.items[before];

    if (!item) {
      if (comment !== undefined) {
        if (collection.comment) collection.comment += '\n' + comment;else collection.comment = comment;
      }
    } else {
      if (afterKey && item.value) item = item.value;

      if (comment === undefined) {
        if (afterKey || !item.commentBefore) item.spaceBefore = true;
      } else {
        if (item.commentBefore) item.commentBefore += '\n' + comment;else item.commentBefore = comment;
      }
    }
  }
}

// on error, will return { str: string, errors: Error[] }
function resolveString(doc, node) {
  const res = node.strValue;
  if (!res) return '';
  if (typeof res === 'string') return res;
  res.errors.forEach(error => {
    if (!error.source) error.source = node;
    doc.errors.push(error);
  });
  return res.str;
}

function resolveTagHandle(doc, node) {
  const {
    handle,
    suffix
  } = node.tag;
  let prefix = doc.tagPrefixes.find(p => p.handle === handle);

  if (!prefix) {
    const dtp = doc.getDefaults().tagPrefixes;
    if (dtp) prefix = dtp.find(p => p.handle === handle);
    if (!prefix) throw new PlainValue$4.YAMLSemanticError(node, `The ${handle} tag handle is non-default and was not declared.`);
  }

  if (!suffix) throw new PlainValue$4.YAMLSemanticError(node, `The ${handle} tag has no suffix.`);

  if (handle === '!' && (doc.version || doc.options.version) === '1.0') {
    if (suffix[0] === '^') {
      doc.warnings.push(new PlainValue$4.YAMLWarning(node, 'YAML 1.0 ^ tag expansion is not supported'));
      return suffix;
    }

    if (/[:/]/.test(suffix)) {
      // word/foo -> tag:word.yaml.org,2002:foo
      const vocab = suffix.match(/^([a-z0-9-]+)\/(.*)/i);
      return vocab ? `tag:${vocab[1]}.yaml.org,2002:${vocab[2]}` : `tag:${suffix}`;
    }
  }

  return prefix.prefix + decodeURIComponent(suffix);
}

function resolveTagName(doc, node) {
  const {
    tag,
    type
  } = node;
  let nonSpecific = false;

  if (tag) {
    const {
      handle,
      suffix,
      verbatim
    } = tag;

    if (verbatim) {
      if (verbatim !== '!' && verbatim !== '!!') return verbatim;
      const msg = `Verbatim tags aren't resolved, so ${verbatim} is invalid.`;
      doc.errors.push(new PlainValue$4.YAMLSemanticError(node, msg));
    } else if (handle === '!' && !suffix) {
      nonSpecific = true;
    } else {
      try {
        return resolveTagHandle(doc, node);
      } catch (error) {
        doc.errors.push(error);
      }
    }
  }

  switch (type) {
    case PlainValue$4.Type.BLOCK_FOLDED:
    case PlainValue$4.Type.BLOCK_LITERAL:
    case PlainValue$4.Type.QUOTE_DOUBLE:
    case PlainValue$4.Type.QUOTE_SINGLE:
      return PlainValue$4.defaultTags.STR;

    case PlainValue$4.Type.FLOW_MAP:
    case PlainValue$4.Type.MAP:
      return PlainValue$4.defaultTags.MAP;

    case PlainValue$4.Type.FLOW_SEQ:
    case PlainValue$4.Type.SEQ:
      return PlainValue$4.defaultTags.SEQ;

    case PlainValue$4.Type.PLAIN:
      return nonSpecific ? PlainValue$4.defaultTags.STR : null;

    default:
      return null;
  }
}

function resolveByTagName(doc, node, tagName) {
  const {
    tags
  } = doc.schema;
  const matchWithTest = [];

  for (const tag of tags) {
    if (tag.tag === tagName) {
      if (tag.test) matchWithTest.push(tag);else {
        const res = tag.resolve(doc, node);
        return res instanceof Collection ? res : new Scalar(res);
      }
    }
  }

  const str = resolveString(doc, node);
  if (typeof str === 'string' && matchWithTest.length > 0) return resolveScalar(str, matchWithTest, tags.scalarFallback);
  return null;
}

function getFallbackTagName({
  type
}) {
  switch (type) {
    case PlainValue$4.Type.FLOW_MAP:
    case PlainValue$4.Type.MAP:
      return PlainValue$4.defaultTags.MAP;

    case PlainValue$4.Type.FLOW_SEQ:
    case PlainValue$4.Type.SEQ:
      return PlainValue$4.defaultTags.SEQ;

    default:
      return PlainValue$4.defaultTags.STR;
  }
}

function resolveTag(doc, node, tagName) {
  try {
    const res = resolveByTagName(doc, node, tagName);

    if (res) {
      if (tagName && node.tag) res.tag = tagName;
      return res;
    }
  } catch (error) {
    /* istanbul ignore if */
    if (!error.source) error.source = node;
    doc.errors.push(error);
    return null;
  }

  try {
    const fallback = getFallbackTagName(node);
    if (!fallback) throw new Error(`The tag ${tagName} is unavailable`);
    const msg = `The tag ${tagName} is unavailable, falling back to ${fallback}`;
    doc.warnings.push(new PlainValue$4.YAMLWarning(node, msg));
    const res = resolveByTagName(doc, node, fallback);
    res.tag = tagName;
    return res;
  } catch (error) {
    const refError = new PlainValue$4.YAMLReferenceError(node, error.message);
    refError.stack = error.stack;
    doc.errors.push(refError);
    return null;
  }
}

const isCollectionItem = node => {
  if (!node) return false;
  const {
    type
  } = node;
  return type === PlainValue$4.Type.MAP_KEY || type === PlainValue$4.Type.MAP_VALUE || type === PlainValue$4.Type.SEQ_ITEM;
};

function resolveNodeProps(errors, node) {
  const comments = {
    before: [],
    after: []
  };
  let hasAnchor = false;
  let hasTag = false;
  const props = isCollectionItem(node.context.parent) ? node.context.parent.props.concat(node.props) : node.props;

  for (const {
    start,
    end
  } of props) {
    switch (node.context.src[start]) {
      case PlainValue$4.Char.COMMENT:
        {
          if (!node.commentHasRequiredWhitespace(start)) {
            const msg = 'Comments must be separated from other tokens by white space characters';
            errors.push(new PlainValue$4.YAMLSemanticError(node, msg));
          }

          const {
            header,
            valueRange
          } = node;
          const cc = valueRange && (start > valueRange.start || header && start > header.start) ? comments.after : comments.before;
          cc.push(node.context.src.slice(start + 1, end));
          break;
        }
      // Actual anchor & tag resolution is handled by schema, here we just complain

      case PlainValue$4.Char.ANCHOR:
        if (hasAnchor) {
          const msg = 'A node can have at most one anchor';
          errors.push(new PlainValue$4.YAMLSemanticError(node, msg));
        }

        hasAnchor = true;
        break;

      case PlainValue$4.Char.TAG:
        if (hasTag) {
          const msg = 'A node can have at most one tag';
          errors.push(new PlainValue$4.YAMLSemanticError(node, msg));
        }

        hasTag = true;
        break;
    }
  }

  return {
    comments,
    hasAnchor,
    hasTag
  };
}

function resolveNodeValue(doc, node) {
  const {
    anchors,
    errors,
    schema
  } = doc;

  if (node.type === PlainValue$4.Type.ALIAS) {
    const name = node.rawValue;
    const src = anchors.getNode(name);

    if (!src) {
      const msg = `Aliased anchor not found: ${name}`;
      errors.push(new PlainValue$4.YAMLReferenceError(node, msg));
      return null;
    } // Lazy resolution for circular references


    const res = new Alias(src);

    anchors._cstAliases.push(res);

    return res;
  }

  const tagName = resolveTagName(doc, node);
  if (tagName) return resolveTag(doc, node, tagName);

  if (node.type !== PlainValue$4.Type.PLAIN) {
    const msg = `Failed to resolve ${node.type} node here`;
    errors.push(new PlainValue$4.YAMLSyntaxError(node, msg));
    return null;
  }

  try {
    const str = resolveString(doc, node);
    return resolveScalar(str, schema.tags, schema.tags.scalarFallback);
  } catch (error) {
    if (!error.source) error.source = node;
    errors.push(error);
    return null;
  }
} // sets node.resolved on success


function resolveNode(doc, node) {
  if (!node) return null;
  if (node.error) doc.errors.push(node.error);
  const {
    comments,
    hasAnchor,
    hasTag
  } = resolveNodeProps(doc.errors, node);

  if (hasAnchor) {
    const {
      anchors
    } = doc;
    const name = node.anchor;
    const prev = anchors.getNode(name); // At this point, aliases for any preceding node with the same anchor
    // name have already been resolved, so it may safely be renamed.

    if (prev) anchors.map[anchors.newName(name)] = prev; // During parsing, we need to store the CST node in anchors.map as
    // anchors need to be available during resolution to allow for
    // circular references.

    anchors.map[name] = node;
  }

  if (node.type === PlainValue$4.Type.ALIAS && (hasAnchor || hasTag)) {
    const msg = 'An alias node must not specify any properties';
    doc.errors.push(new PlainValue$4.YAMLSemanticError(node, msg));
  }

  const res = resolveNodeValue(doc, node);

  if (res) {
    res.range = [node.range.start, node.range.end];
    if (doc.options.keepCstNodes) res.cstNode = node;
    if (doc.options.keepNodeTypes) res.type = node.type;
    const cb = comments.before.join('\n');

    if (cb) {
      res.commentBefore = res.commentBefore ? `${res.commentBefore}\n${cb}` : cb;
    }

    const ca = comments.after.join('\n');
    if (ca) res.comment = res.comment ? `${res.comment}\n${ca}` : ca;
  }

  return node.resolved = res;
}

function resolveMap(doc, cst) {
  if (cst.type !== PlainValue$4.Type.MAP && cst.type !== PlainValue$4.Type.FLOW_MAP) {
    const msg = `A ${cst.type} node cannot be resolved as a mapping`;
    doc.errors.push(new PlainValue$4.YAMLSyntaxError(cst, msg));
    return null;
  }

  const {
    comments,
    items
  } = cst.type === PlainValue$4.Type.FLOW_MAP ? resolveFlowMapItems(doc, cst) : resolveBlockMapItems(doc, cst);
  const map = new YAMLMap();
  map.items = items;
  resolveComments(map, comments);
  let hasCollectionKey = false;

  for (let i = 0; i < items.length; ++i) {
    const {
      key: iKey
    } = items[i];
    if (iKey instanceof Collection) hasCollectionKey = true;

    if (doc.schema.merge && iKey && iKey.value === MERGE_KEY) {
      items[i] = new Merge(items[i]);
      const sources = items[i].value.items;
      let error = null;
      sources.some(node => {
        if (node instanceof Alias) {
          // During parsing, alias sources are CST nodes; to account for
          // circular references their resolved values can't be used here.
          const {
            type
          } = node.source;
          if (type === PlainValue$4.Type.MAP || type === PlainValue$4.Type.FLOW_MAP) return false;
          return error = 'Merge nodes aliases can only point to maps';
        }

        return error = 'Merge nodes can only have Alias nodes as values';
      });
      if (error) doc.errors.push(new PlainValue$4.YAMLSemanticError(cst, error));
    } else {
      for (let j = i + 1; j < items.length; ++j) {
        const {
          key: jKey
        } = items[j];

        if (iKey === jKey || iKey && jKey && Object.prototype.hasOwnProperty.call(iKey, 'value') && iKey.value === jKey.value) {
          const msg = `Map keys must be unique; "${iKey}" is repeated`;
          doc.errors.push(new PlainValue$4.YAMLSemanticError(cst, msg));
          break;
        }
      }
    }
  }

  if (hasCollectionKey && !doc.options.mapAsMap) {
    const warn = 'Keys with collection values will be stringified as YAML due to JS Object restrictions. Use mapAsMap: true to avoid this.';
    doc.warnings.push(new PlainValue$4.YAMLWarning(cst, warn));
  }

  cst.resolved = map;
  return map;
}

const valueHasPairComment = ({
  context: {
    lineStart,
    node,
    src
  },
  props
}) => {
  if (props.length === 0) return false;
  const {
    start
  } = props[0];
  if (node && start > node.valueRange.start) return false;
  if (src[start] !== PlainValue$4.Char.COMMENT) return false;

  for (let i = lineStart; i < start; ++i) if (src[i] === '\n') return false;

  return true;
};

function resolvePairComment(item, pair) {
  if (!valueHasPairComment(item)) return;
  const comment = item.getPropValue(0, PlainValue$4.Char.COMMENT, true);
  let found = false;
  const cb = pair.value.commentBefore;

  if (cb && cb.startsWith(comment)) {
    pair.value.commentBefore = cb.substr(comment.length + 1);
    found = true;
  } else {
    const cc = pair.value.comment;

    if (!item.node && cc && cc.startsWith(comment)) {
      pair.value.comment = cc.substr(comment.length + 1);
      found = true;
    }
  }

  if (found) pair.comment = comment;
}

function resolveBlockMapItems(doc, cst) {
  const comments = [];
  const items = [];
  let key = undefined;
  let keyStart = null;

  for (let i = 0; i < cst.items.length; ++i) {
    const item = cst.items[i];

    switch (item.type) {
      case PlainValue$4.Type.BLANK_LINE:
        comments.push({
          afterKey: !!key,
          before: items.length
        });
        break;

      case PlainValue$4.Type.COMMENT:
        comments.push({
          afterKey: !!key,
          before: items.length,
          comment: item.comment
        });
        break;

      case PlainValue$4.Type.MAP_KEY:
        if (key !== undefined) items.push(new Pair(key));
        if (item.error) doc.errors.push(item.error);
        key = resolveNode(doc, item.node);
        keyStart = null;
        break;

      case PlainValue$4.Type.MAP_VALUE:
        {
          if (key === undefined) key = null;
          if (item.error) doc.errors.push(item.error);

          if (!item.context.atLineStart && item.node && item.node.type === PlainValue$4.Type.MAP && !item.node.context.atLineStart) {
            const msg = 'Nested mappings are not allowed in compact mappings';
            doc.errors.push(new PlainValue$4.YAMLSemanticError(item.node, msg));
          }

          let valueNode = item.node;

          if (!valueNode && item.props.length > 0) {
            // Comments on an empty mapping value need to be preserved, so we
            // need to construct a minimal empty node here to use instead of the
            // missing `item.node`. -- eemeli/yaml#19
            valueNode = new PlainValue$4.PlainValue(PlainValue$4.Type.PLAIN, []);
            valueNode.context = {
              parent: item,
              src: item.context.src
            };
            const pos = item.range.start + 1;
            valueNode.range = {
              start: pos,
              end: pos
            };
            valueNode.valueRange = {
              start: pos,
              end: pos
            };

            if (typeof item.range.origStart === 'number') {
              const origPos = item.range.origStart + 1;
              valueNode.range.origStart = valueNode.range.origEnd = origPos;
              valueNode.valueRange.origStart = valueNode.valueRange.origEnd = origPos;
            }
          }

          const pair = new Pair(key, resolveNode(doc, valueNode));
          resolvePairComment(item, pair);
          items.push(pair);

          if (key && typeof keyStart === 'number') {
            if (item.range.start > keyStart + 1024) doc.errors.push(getLongKeyError(cst, key));
          }

          key = undefined;
          keyStart = null;
        }
        break;

      default:
        if (key !== undefined) items.push(new Pair(key));
        key = resolveNode(doc, item);
        keyStart = item.range.start;
        if (item.error) doc.errors.push(item.error);

        next: for (let j = i + 1;; ++j) {
          const nextItem = cst.items[j];

          switch (nextItem && nextItem.type) {
            case PlainValue$4.Type.BLANK_LINE:
            case PlainValue$4.Type.COMMENT:
              continue next;

            case PlainValue$4.Type.MAP_VALUE:
              break next;

            default:
              {
                const msg = 'Implicit map keys need to be followed by map values';
                doc.errors.push(new PlainValue$4.YAMLSemanticError(item, msg));
                break next;
              }
          }
        }

        if (item.valueRangeContainsNewline) {
          const msg = 'Implicit map keys need to be on a single line';
          doc.errors.push(new PlainValue$4.YAMLSemanticError(item, msg));
        }

    }
  }

  if (key !== undefined) items.push(new Pair(key));
  return {
    comments,
    items
  };
}

function resolveFlowMapItems(doc, cst) {
  const comments = [];
  const items = [];
  let key = undefined;
  let explicitKey = false;
  let next = '{';

  for (let i = 0; i < cst.items.length; ++i) {
    const item = cst.items[i];

    if (typeof item.char === 'string') {
      const {
        char,
        offset
      } = item;

      if (char === '?' && key === undefined && !explicitKey) {
        explicitKey = true;
        next = ':';
        continue;
      }

      if (char === ':') {
        if (key === undefined) key = null;

        if (next === ':') {
          next = ',';
          continue;
        }
      } else {
        if (explicitKey) {
          if (key === undefined && char !== ',') key = null;
          explicitKey = false;
        }

        if (key !== undefined) {
          items.push(new Pair(key));
          key = undefined;

          if (char === ',') {
            next = ':';
            continue;
          }
        }
      }

      if (char === '}') {
        if (i === cst.items.length - 1) continue;
      } else if (char === next) {
        next = ':';
        continue;
      }

      const msg = `Flow map contains an unexpected ${char}`;
      const err = new PlainValue$4.YAMLSyntaxError(cst, msg);
      err.offset = offset;
      doc.errors.push(err);
    } else if (item.type === PlainValue$4.Type.BLANK_LINE) {
      comments.push({
        afterKey: !!key,
        before: items.length
      });
    } else if (item.type === PlainValue$4.Type.COMMENT) {
      checkFlowCommentSpace(doc.errors, item);
      comments.push({
        afterKey: !!key,
        before: items.length,
        comment: item.comment
      });
    } else if (key === undefined) {
      if (next === ',') doc.errors.push(new PlainValue$4.YAMLSemanticError(item, 'Separator , missing in flow map'));
      key = resolveNode(doc, item);
    } else {
      if (next !== ',') doc.errors.push(new PlainValue$4.YAMLSemanticError(item, 'Indicator : missing in flow map entry'));
      items.push(new Pair(key, resolveNode(doc, item)));
      key = undefined;
      explicitKey = false;
    }
  }

  checkFlowCollectionEnd(doc.errors, cst);
  if (key !== undefined) items.push(new Pair(key));
  return {
    comments,
    items
  };
}

function resolveSeq$3(doc, cst) {
  if (cst.type !== PlainValue$4.Type.SEQ && cst.type !== PlainValue$4.Type.FLOW_SEQ) {
    const msg = `A ${cst.type} node cannot be resolved as a sequence`;
    doc.errors.push(new PlainValue$4.YAMLSyntaxError(cst, msg));
    return null;
  }

  const {
    comments,
    items
  } = cst.type === PlainValue$4.Type.FLOW_SEQ ? resolveFlowSeqItems(doc, cst) : resolveBlockSeqItems(doc, cst);
  const seq = new YAMLSeq();
  seq.items = items;
  resolveComments(seq, comments);

  if (!doc.options.mapAsMap && items.some(it => it instanceof Pair && it.key instanceof Collection)) {
    const warn = 'Keys with collection values will be stringified as YAML due to JS Object restrictions. Use mapAsMap: true to avoid this.';
    doc.warnings.push(new PlainValue$4.YAMLWarning(cst, warn));
  }

  cst.resolved = seq;
  return seq;
}

function resolveBlockSeqItems(doc, cst) {
  const comments = [];
  const items = [];

  for (let i = 0; i < cst.items.length; ++i) {
    const item = cst.items[i];

    switch (item.type) {
      case PlainValue$4.Type.BLANK_LINE:
        comments.push({
          before: items.length
        });
        break;

      case PlainValue$4.Type.COMMENT:
        comments.push({
          comment: item.comment,
          before: items.length
        });
        break;

      case PlainValue$4.Type.SEQ_ITEM:
        if (item.error) doc.errors.push(item.error);
        items.push(resolveNode(doc, item.node));

        if (item.hasProps) {
          const msg = 'Sequence items cannot have tags or anchors before the - indicator';
          doc.errors.push(new PlainValue$4.YAMLSemanticError(item, msg));
        }

        break;

      default:
        if (item.error) doc.errors.push(item.error);
        doc.errors.push(new PlainValue$4.YAMLSyntaxError(item, `Unexpected ${item.type} node in sequence`));
    }
  }

  return {
    comments,
    items
  };
}

function resolveFlowSeqItems(doc, cst) {
  const comments = [];
  const items = [];
  let explicitKey = false;
  let key = undefined;
  let keyStart = null;
  let next = '[';
  let prevItem = null;

  for (let i = 0; i < cst.items.length; ++i) {
    const item = cst.items[i];

    if (typeof item.char === 'string') {
      const {
        char,
        offset
      } = item;

      if (char !== ':' && (explicitKey || key !== undefined)) {
        if (explicitKey && key === undefined) key = next ? items.pop() : null;
        items.push(new Pair(key));
        explicitKey = false;
        key = undefined;
        keyStart = null;
      }

      if (char === next) {
        next = null;
      } else if (!next && char === '?') {
        explicitKey = true;
      } else if (next !== '[' && char === ':' && key === undefined) {
        if (next === ',') {
          key = items.pop();

          if (key instanceof Pair) {
            const msg = 'Chaining flow sequence pairs is invalid';
            const err = new PlainValue$4.YAMLSemanticError(cst, msg);
            err.offset = offset;
            doc.errors.push(err);
          }

          if (!explicitKey && typeof keyStart === 'number') {
            const keyEnd = item.range ? item.range.start : item.offset;
            if (keyEnd > keyStart + 1024) doc.errors.push(getLongKeyError(cst, key));
            const {
              src
            } = prevItem.context;

            for (let i = keyStart; i < keyEnd; ++i) if (src[i] === '\n') {
              const msg = 'Implicit keys of flow sequence pairs need to be on a single line';
              doc.errors.push(new PlainValue$4.YAMLSemanticError(prevItem, msg));
              break;
            }
          }
        } else {
          key = null;
        }

        keyStart = null;
        explicitKey = false;
        next = null;
      } else if (next === '[' || char !== ']' || i < cst.items.length - 1) {
        const msg = `Flow sequence contains an unexpected ${char}`;
        const err = new PlainValue$4.YAMLSyntaxError(cst, msg);
        err.offset = offset;
        doc.errors.push(err);
      }
    } else if (item.type === PlainValue$4.Type.BLANK_LINE) {
      comments.push({
        before: items.length
      });
    } else if (item.type === PlainValue$4.Type.COMMENT) {
      checkFlowCommentSpace(doc.errors, item);
      comments.push({
        comment: item.comment,
        before: items.length
      });
    } else {
      if (next) {
        const msg = `Expected a ${next} in flow sequence`;
        doc.errors.push(new PlainValue$4.YAMLSemanticError(item, msg));
      }

      const value = resolveNode(doc, item);

      if (key === undefined) {
        items.push(value);
        prevItem = item;
      } else {
        items.push(new Pair(key, value));
        key = undefined;
      }

      keyStart = item.range.start;
      next = ',';
    }
  }

  checkFlowCollectionEnd(doc.errors, cst);
  if (key !== undefined) items.push(new Pair(key));
  return {
    comments,
    items
  };
}

resolveSeqD03cb037.Alias = Alias;
resolveSeqD03cb037.Collection = Collection;
resolveSeqD03cb037.Merge = Merge;
resolveSeqD03cb037.Node = Node$1;
resolveSeqD03cb037.Pair = Pair;
resolveSeqD03cb037.Scalar = Scalar;
resolveSeqD03cb037.YAMLMap = YAMLMap;
resolveSeqD03cb037.YAMLSeq = YAMLSeq;
resolveSeqD03cb037.addComment = addComment;
resolveSeqD03cb037.binaryOptions = binaryOptions;
resolveSeqD03cb037.boolOptions = boolOptions;
resolveSeqD03cb037.findPair = findPair;
resolveSeqD03cb037.intOptions = intOptions;
resolveSeqD03cb037.isEmptyPath = isEmptyPath;
resolveSeqD03cb037.nullOptions = nullOptions;
resolveSeqD03cb037.resolveMap = resolveMap;
resolveSeqD03cb037.resolveNode = resolveNode;
resolveSeqD03cb037.resolveSeq = resolveSeq$3;
resolveSeqD03cb037.resolveString = resolveString;
resolveSeqD03cb037.strOptions = strOptions;
resolveSeqD03cb037.stringifyNumber = stringifyNumber;
resolveSeqD03cb037.stringifyString = stringifyString;
resolveSeqD03cb037.toJSON = toJSON;

var Schema88e323a7 = {};

var warnings1000a372 = {};

var PlainValue$3 = PlainValueEc8e588e;
var resolveSeq$2 = resolveSeqD03cb037;

/* global atob, btoa, Buffer */
const binary = {
  identify: value => value instanceof Uint8Array,
  // Buffer inherits from Uint8Array
  default: false,
  tag: 'tag:yaml.org,2002:binary',

  /**
   * Returns a Buffer in node and an Uint8Array in browsers
   *
   * To use the resulting buffer as an image, you'll want to do something like:
   *
   *   const blob = new Blob([buffer], { type: 'image/jpeg' })
   *   document.querySelector('#photo').src = URL.createObjectURL(blob)
   */
  resolve: (doc, node) => {
    const src = resolveSeq$2.resolveString(doc, node);

    if (typeof Buffer === 'function') {
      return Buffer.from(src, 'base64');
    } else if (typeof atob === 'function') {
      // On IE 11, atob() can't handle newlines
      const str = atob(src.replace(/[\n\r]/g, ''));
      const buffer = new Uint8Array(str.length);

      for (let i = 0; i < str.length; ++i) buffer[i] = str.charCodeAt(i);

      return buffer;
    } else {
      const msg = 'This environment does not support reading binary tags; either Buffer or atob is required';
      doc.errors.push(new PlainValue$3.YAMLReferenceError(node, msg));
      return null;
    }
  },
  options: resolveSeq$2.binaryOptions,
  stringify: ({
    comment,
    type,
    value
  }, ctx, onComment, onChompKeep) => {
    let src;

    if (typeof Buffer === 'function') {
      src = value instanceof Buffer ? value.toString('base64') : Buffer.from(value.buffer).toString('base64');
    } else if (typeof btoa === 'function') {
      let s = '';

      for (let i = 0; i < value.length; ++i) s += String.fromCharCode(value[i]);

      src = btoa(s);
    } else {
      throw new Error('This environment does not support writing binary tags; either Buffer or btoa is required');
    }

    if (!type) type = resolveSeq$2.binaryOptions.defaultType;

    if (type === PlainValue$3.Type.QUOTE_DOUBLE) {
      value = src;
    } else {
      const {
        lineWidth
      } = resolveSeq$2.binaryOptions;
      const n = Math.ceil(src.length / lineWidth);
      const lines = new Array(n);

      for (let i = 0, o = 0; i < n; ++i, o += lineWidth) {
        lines[i] = src.substr(o, lineWidth);
      }

      value = lines.join(type === PlainValue$3.Type.BLOCK_LITERAL ? '\n' : ' ');
    }

    return resolveSeq$2.stringifyString({
      comment,
      type,
      value
    }, ctx, onComment, onChompKeep);
  }
};

function parsePairs(doc, cst) {
  const seq = resolveSeq$2.resolveSeq(doc, cst);

  for (let i = 0; i < seq.items.length; ++i) {
    let item = seq.items[i];
    if (item instanceof resolveSeq$2.Pair) continue;else if (item instanceof resolveSeq$2.YAMLMap) {
      if (item.items.length > 1) {
        const msg = 'Each pair must have its own sequence indicator';
        throw new PlainValue$3.YAMLSemanticError(cst, msg);
      }

      const pair = item.items[0] || new resolveSeq$2.Pair();
      if (item.commentBefore) pair.commentBefore = pair.commentBefore ? `${item.commentBefore}\n${pair.commentBefore}` : item.commentBefore;
      if (item.comment) pair.comment = pair.comment ? `${item.comment}\n${pair.comment}` : item.comment;
      item = pair;
    }
    seq.items[i] = item instanceof resolveSeq$2.Pair ? item : new resolveSeq$2.Pair(item);
  }

  return seq;
}
function createPairs(schema, iterable, ctx) {
  const pairs = new resolveSeq$2.YAMLSeq(schema);
  pairs.tag = 'tag:yaml.org,2002:pairs';

  for (const it of iterable) {
    let key, value;

    if (Array.isArray(it)) {
      if (it.length === 2) {
        key = it[0];
        value = it[1];
      } else throw new TypeError(`Expected [key, value] tuple: ${it}`);
    } else if (it && it instanceof Object) {
      const keys = Object.keys(it);

      if (keys.length === 1) {
        key = keys[0];
        value = it[key];
      } else throw new TypeError(`Expected { key: value } tuple: ${it}`);
    } else {
      key = it;
    }

    const pair = schema.createPair(key, value, ctx);
    pairs.items.push(pair);
  }

  return pairs;
}
const pairs = {
  default: false,
  tag: 'tag:yaml.org,2002:pairs',
  resolve: parsePairs,
  createNode: createPairs
};

class YAMLOMap extends resolveSeq$2.YAMLSeq {
  constructor() {
    super();

    PlainValue$3._defineProperty(this, "add", resolveSeq$2.YAMLMap.prototype.add.bind(this));

    PlainValue$3._defineProperty(this, "delete", resolveSeq$2.YAMLMap.prototype.delete.bind(this));

    PlainValue$3._defineProperty(this, "get", resolveSeq$2.YAMLMap.prototype.get.bind(this));

    PlainValue$3._defineProperty(this, "has", resolveSeq$2.YAMLMap.prototype.has.bind(this));

    PlainValue$3._defineProperty(this, "set", resolveSeq$2.YAMLMap.prototype.set.bind(this));

    this.tag = YAMLOMap.tag;
  }

  toJSON(_, ctx) {
    const map = new Map();
    if (ctx && ctx.onCreate) ctx.onCreate(map);

    for (const pair of this.items) {
      let key, value;

      if (pair instanceof resolveSeq$2.Pair) {
        key = resolveSeq$2.toJSON(pair.key, '', ctx);
        value = resolveSeq$2.toJSON(pair.value, key, ctx);
      } else {
        key = resolveSeq$2.toJSON(pair, '', ctx);
      }

      if (map.has(key)) throw new Error('Ordered maps must not include duplicate keys');
      map.set(key, value);
    }

    return map;
  }

}

PlainValue$3._defineProperty(YAMLOMap, "tag", 'tag:yaml.org,2002:omap');

function parseOMap(doc, cst) {
  const pairs = parsePairs(doc, cst);
  const seenKeys = [];

  for (const {
    key
  } of pairs.items) {
    if (key instanceof resolveSeq$2.Scalar) {
      if (seenKeys.includes(key.value)) {
        const msg = 'Ordered maps must not include duplicate keys';
        throw new PlainValue$3.YAMLSemanticError(cst, msg);
      } else {
        seenKeys.push(key.value);
      }
    }
  }

  return Object.assign(new YAMLOMap(), pairs);
}

function createOMap(schema, iterable, ctx) {
  const pairs = createPairs(schema, iterable, ctx);
  const omap = new YAMLOMap();
  omap.items = pairs.items;
  return omap;
}

const omap = {
  identify: value => value instanceof Map,
  nodeClass: YAMLOMap,
  default: false,
  tag: 'tag:yaml.org,2002:omap',
  resolve: parseOMap,
  createNode: createOMap
};

class YAMLSet extends resolveSeq$2.YAMLMap {
  constructor() {
    super();
    this.tag = YAMLSet.tag;
  }

  add(key) {
    const pair = key instanceof resolveSeq$2.Pair ? key : new resolveSeq$2.Pair(key);
    const prev = resolveSeq$2.findPair(this.items, pair.key);
    if (!prev) this.items.push(pair);
  }

  get(key, keepPair) {
    const pair = resolveSeq$2.findPair(this.items, key);
    return !keepPair && pair instanceof resolveSeq$2.Pair ? pair.key instanceof resolveSeq$2.Scalar ? pair.key.value : pair.key : pair;
  }

  set(key, value) {
    if (typeof value !== 'boolean') throw new Error(`Expected boolean value for set(key, value) in a YAML set, not ${typeof value}`);
    const prev = resolveSeq$2.findPair(this.items, key);

    if (prev && !value) {
      this.items.splice(this.items.indexOf(prev), 1);
    } else if (!prev && value) {
      this.items.push(new resolveSeq$2.Pair(key));
    }
  }

  toJSON(_, ctx) {
    return super.toJSON(_, ctx, Set);
  }

  toString(ctx, onComment, onChompKeep) {
    if (!ctx) return JSON.stringify(this);
    if (this.hasAllNullValues()) return super.toString(ctx, onComment, onChompKeep);else throw new Error('Set items must all have null values');
  }

}

PlainValue$3._defineProperty(YAMLSet, "tag", 'tag:yaml.org,2002:set');

function parseSet(doc, cst) {
  const map = resolveSeq$2.resolveMap(doc, cst);
  if (!map.hasAllNullValues()) throw new PlainValue$3.YAMLSemanticError(cst, 'Set items must all have null values');
  return Object.assign(new YAMLSet(), map);
}

function createSet(schema, iterable, ctx) {
  const set = new YAMLSet();

  for (const value of iterable) set.items.push(schema.createPair(value, null, ctx));

  return set;
}

const set = {
  identify: value => value instanceof Set,
  nodeClass: YAMLSet,
  default: false,
  tag: 'tag:yaml.org,2002:set',
  resolve: parseSet,
  createNode: createSet
};

const parseSexagesimal = (sign, parts) => {
  const n = parts.split(':').reduce((n, p) => n * 60 + Number(p), 0);
  return sign === '-' ? -n : n;
}; // hhhh:mm:ss.sss


const stringifySexagesimal = ({
  value
}) => {
  if (isNaN(value) || !isFinite(value)) return resolveSeq$2.stringifyNumber(value);
  let sign = '';

  if (value < 0) {
    sign = '-';
    value = Math.abs(value);
  }

  const parts = [value % 60]; // seconds, including ms

  if (value < 60) {
    parts.unshift(0); // at least one : is required
  } else {
    value = Math.round((value - parts[0]) / 60);
    parts.unshift(value % 60); // minutes

    if (value >= 60) {
      value = Math.round((value - parts[0]) / 60);
      parts.unshift(value); // hours
    }
  }

  return sign + parts.map(n => n < 10 ? '0' + String(n) : String(n)).join(':').replace(/000000\d*$/, '') // % 60 may introduce error
  ;
};

const intTime = {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'TIME',
  test: /^([-+]?)([0-9][0-9_]*(?::[0-5]?[0-9])+)$/,
  resolve: (str, sign, parts) => parseSexagesimal(sign, parts.replace(/_/g, '')),
  stringify: stringifySexagesimal
};
const floatTime = {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:float',
  format: 'TIME',
  test: /^([-+]?)([0-9][0-9_]*(?::[0-5]?[0-9])+\.[0-9_]*)$/,
  resolve: (str, sign, parts) => parseSexagesimal(sign, parts.replace(/_/g, '')),
  stringify: stringifySexagesimal
};
const timestamp = {
  identify: value => value instanceof Date,
  default: true,
  tag: 'tag:yaml.org,2002:timestamp',
  // If the time zone is omitted, the timestamp is assumed to be specified in UTC. The time part
  // may be omitted altogether, resulting in a date format. In such a case, the time part is
  // assumed to be 00:00:00Z (start of day, UTC).
  test: RegExp('^(?:' + '([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})' + // YYYY-Mm-Dd
  '(?:(?:t|T|[ \\t]+)' + // t | T | whitespace
  '([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2}(\\.[0-9]+)?)' + // Hh:Mm:Ss(.ss)?
  '(?:[ \\t]*(Z|[-+][012]?[0-9](?::[0-9]{2})?))?' + // Z | +5 | -03:30
  ')?' + ')$'),
  resolve: (str, year, month, day, hour, minute, second, millisec, tz) => {
    if (millisec) millisec = (millisec + '00').substr(1, 3);
    let date = Date.UTC(year, month - 1, day, hour || 0, minute || 0, second || 0, millisec || 0);

    if (tz && tz !== 'Z') {
      let d = parseSexagesimal(tz[0], tz.slice(1));
      if (Math.abs(d) < 30) d *= 60;
      date -= 60000 * d;
    }

    return new Date(date);
  },
  stringify: ({
    value
  }) => value.toISOString().replace(/((T00:00)?:00)?\.000Z$/, '')
};

/* global console, process, YAML_SILENCE_DEPRECATION_WARNINGS, YAML_SILENCE_WARNINGS */
function shouldWarn(deprecation) {
  const env = typeof process !== 'undefined' && process.env || {};

  if (deprecation) {
    if (typeof YAML_SILENCE_DEPRECATION_WARNINGS !== 'undefined') return !YAML_SILENCE_DEPRECATION_WARNINGS;
    return !env.YAML_SILENCE_DEPRECATION_WARNINGS;
  }

  if (typeof YAML_SILENCE_WARNINGS !== 'undefined') return !YAML_SILENCE_WARNINGS;
  return !env.YAML_SILENCE_WARNINGS;
}

function warn(warning, type) {
  if (shouldWarn(false)) {
    const emit = typeof process !== 'undefined' && process.emitWarning; // This will throw in Jest if `warning` is an Error instance due to
    // https://github.com/facebook/jest/issues/2549

    if (emit) emit(warning, type);else {
      // eslint-disable-next-line no-console
      console.warn(type ? `${type}: ${warning}` : warning);
    }
  }
}
function warnFileDeprecation(filename) {
  if (shouldWarn(true)) {
    const path = filename.replace(/.*yaml[/\\]/i, '').replace(/\.js$/, '').replace(/\\/g, '/');
    warn(`The endpoint 'yaml/${path}' will be removed in a future release.`, 'DeprecationWarning');
  }
}
const warned = {};
function warnOptionDeprecation(name, alternative) {
  if (!warned[name] && shouldWarn(true)) {
    warned[name] = true;
    let msg = `The option '${name}' will be removed in a future release`;
    msg += alternative ? `, use '${alternative}' instead.` : '.';
    warn(msg, 'DeprecationWarning');
  }
}

warnings1000a372.binary = binary;
warnings1000a372.floatTime = floatTime;
warnings1000a372.intTime = intTime;
warnings1000a372.omap = omap;
warnings1000a372.pairs = pairs;
warnings1000a372.set = set;
warnings1000a372.timestamp = timestamp;
warnings1000a372.warn = warn;
warnings1000a372.warnFileDeprecation = warnFileDeprecation;
warnings1000a372.warnOptionDeprecation = warnOptionDeprecation;

var PlainValue$2 = PlainValueEc8e588e;
var resolveSeq$1 = resolveSeqD03cb037;
var warnings$1 = warnings1000a372;

function createMap(schema, obj, ctx) {
  const map = new resolveSeq$1.YAMLMap(schema);

  if (obj instanceof Map) {
    for (const [key, value] of obj) map.items.push(schema.createPair(key, value, ctx));
  } else if (obj && typeof obj === 'object') {
    for (const key of Object.keys(obj)) map.items.push(schema.createPair(key, obj[key], ctx));
  }

  if (typeof schema.sortMapEntries === 'function') {
    map.items.sort(schema.sortMapEntries);
  }

  return map;
}

const map$1 = {
  createNode: createMap,
  default: true,
  nodeClass: resolveSeq$1.YAMLMap,
  tag: 'tag:yaml.org,2002:map',
  resolve: resolveSeq$1.resolveMap
};

function createSeq(schema, obj, ctx) {
  const seq = new resolveSeq$1.YAMLSeq(schema);

  if (obj && obj[Symbol.iterator]) {
    for (const it of obj) {
      const v = schema.createNode(it, ctx.wrapScalars, null, ctx);
      seq.items.push(v);
    }
  }

  return seq;
}

const seq = {
  createNode: createSeq,
  default: true,
  nodeClass: resolveSeq$1.YAMLSeq,
  tag: 'tag:yaml.org,2002:seq',
  resolve: resolveSeq$1.resolveSeq
};

const string = {
  identify: value => typeof value === 'string',
  default: true,
  tag: 'tag:yaml.org,2002:str',
  resolve: resolveSeq$1.resolveString,

  stringify(item, ctx, onComment, onChompKeep) {
    ctx = Object.assign({
      actualString: true
    }, ctx);
    return resolveSeq$1.stringifyString(item, ctx, onComment, onChompKeep);
  },

  options: resolveSeq$1.strOptions
};

const failsafe = [map$1, seq, string];

/* global BigInt */

const intIdentify$2 = value => typeof value === 'bigint' || Number.isInteger(value);

const intResolve$1 = (src, part, radix) => resolveSeq$1.intOptions.asBigInt ? BigInt(src) : parseInt(part, radix);

function intStringify$1(node, radix, prefix) {
  const {
    value
  } = node;
  if (intIdentify$2(value) && value >= 0) return prefix + value.toString(radix);
  return resolveSeq$1.stringifyNumber(node);
}

const nullObj = {
  identify: value => value == null,
  createNode: (schema, value, ctx) => ctx.wrapScalars ? new resolveSeq$1.Scalar(null) : null,
  default: true,
  tag: 'tag:yaml.org,2002:null',
  test: /^(?:~|[Nn]ull|NULL)?$/,
  resolve: () => null,
  options: resolveSeq$1.nullOptions,
  stringify: () => resolveSeq$1.nullOptions.nullStr
};
const boolObj = {
  identify: value => typeof value === 'boolean',
  default: true,
  tag: 'tag:yaml.org,2002:bool',
  test: /^(?:[Tt]rue|TRUE|[Ff]alse|FALSE)$/,
  resolve: str => str[0] === 't' || str[0] === 'T',
  options: resolveSeq$1.boolOptions,
  stringify: ({
    value
  }) => value ? resolveSeq$1.boolOptions.trueStr : resolveSeq$1.boolOptions.falseStr
};
const octObj = {
  identify: value => intIdentify$2(value) && value >= 0,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'OCT',
  test: /^0o([0-7]+)$/,
  resolve: (str, oct) => intResolve$1(str, oct, 8),
  options: resolveSeq$1.intOptions,
  stringify: node => intStringify$1(node, 8, '0o')
};
const intObj = {
  identify: intIdentify$2,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  test: /^[-+]?[0-9]+$/,
  resolve: str => intResolve$1(str, str, 10),
  options: resolveSeq$1.intOptions,
  stringify: resolveSeq$1.stringifyNumber
};
const hexObj = {
  identify: value => intIdentify$2(value) && value >= 0,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'HEX',
  test: /^0x([0-9a-fA-F]+)$/,
  resolve: (str, hex) => intResolve$1(str, hex, 16),
  options: resolveSeq$1.intOptions,
  stringify: node => intStringify$1(node, 16, '0x')
};
const nanObj = {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^(?:[-+]?\.inf|(\.nan))$/i,
  resolve: (str, nan) => nan ? NaN : str[0] === '-' ? Number.NEGATIVE_INFINITY : Number.POSITIVE_INFINITY,
  stringify: resolveSeq$1.stringifyNumber
};
const expObj = {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:float',
  format: 'EXP',
  test: /^[-+]?(?:\.[0-9]+|[0-9]+(?:\.[0-9]*)?)[eE][-+]?[0-9]+$/,
  resolve: str => parseFloat(str),
  stringify: ({
    value
  }) => Number(value).toExponential()
};
const floatObj = {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^[-+]?(?:\.([0-9]+)|[0-9]+\.([0-9]*))$/,

  resolve(str, frac1, frac2) {
    const frac = frac1 || frac2;
    const node = new resolveSeq$1.Scalar(parseFloat(str));
    if (frac && frac[frac.length - 1] === '0') node.minFractionDigits = frac.length;
    return node;
  },

  stringify: resolveSeq$1.stringifyNumber
};
const core$2 = failsafe.concat([nullObj, boolObj, octObj, intObj, hexObj, nanObj, expObj, floatObj]);

/* global BigInt */

const intIdentify$1 = value => typeof value === 'bigint' || Number.isInteger(value);

const stringifyJSON = ({
  value
}) => JSON.stringify(value);

const json = [map$1, seq, {
  identify: value => typeof value === 'string',
  default: true,
  tag: 'tag:yaml.org,2002:str',
  resolve: resolveSeq$1.resolveString,
  stringify: stringifyJSON
}, {
  identify: value => value == null,
  createNode: (schema, value, ctx) => ctx.wrapScalars ? new resolveSeq$1.Scalar(null) : null,
  default: true,
  tag: 'tag:yaml.org,2002:null',
  test: /^null$/,
  resolve: () => null,
  stringify: stringifyJSON
}, {
  identify: value => typeof value === 'boolean',
  default: true,
  tag: 'tag:yaml.org,2002:bool',
  test: /^true|false$/,
  resolve: str => str === 'true',
  stringify: stringifyJSON
}, {
  identify: intIdentify$1,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  test: /^-?(?:0|[1-9][0-9]*)$/,
  resolve: str => resolveSeq$1.intOptions.asBigInt ? BigInt(str) : parseInt(str, 10),
  stringify: ({
    value
  }) => intIdentify$1(value) ? value.toString() : JSON.stringify(value)
}, {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^-?(?:0|[1-9][0-9]*)(?:\.[0-9]*)?(?:[eE][-+]?[0-9]+)?$/,
  resolve: str => parseFloat(str),
  stringify: stringifyJSON
}];

json.scalarFallback = str => {
  throw new SyntaxError(`Unresolved plain scalar ${JSON.stringify(str)}`);
};

/* global BigInt */

const boolStringify = ({
  value
}) => value ? resolveSeq$1.boolOptions.trueStr : resolveSeq$1.boolOptions.falseStr;

const intIdentify = value => typeof value === 'bigint' || Number.isInteger(value);

function intResolve(sign, src, radix) {
  let str = src.replace(/_/g, '');

  if (resolveSeq$1.intOptions.asBigInt) {
    switch (radix) {
      case 2:
        str = `0b${str}`;
        break;

      case 8:
        str = `0o${str}`;
        break;

      case 16:
        str = `0x${str}`;
        break;
    }

    const n = BigInt(str);
    return sign === '-' ? BigInt(-1) * n : n;
  }

  const n = parseInt(str, radix);
  return sign === '-' ? -1 * n : n;
}

function intStringify(node, radix, prefix) {
  const {
    value
  } = node;

  if (intIdentify(value)) {
    const str = value.toString(radix);
    return value < 0 ? '-' + prefix + str.substr(1) : prefix + str;
  }

  return resolveSeq$1.stringifyNumber(node);
}

const yaml11 = failsafe.concat([{
  identify: value => value == null,
  createNode: (schema, value, ctx) => ctx.wrapScalars ? new resolveSeq$1.Scalar(null) : null,
  default: true,
  tag: 'tag:yaml.org,2002:null',
  test: /^(?:~|[Nn]ull|NULL)?$/,
  resolve: () => null,
  options: resolveSeq$1.nullOptions,
  stringify: () => resolveSeq$1.nullOptions.nullStr
}, {
  identify: value => typeof value === 'boolean',
  default: true,
  tag: 'tag:yaml.org,2002:bool',
  test: /^(?:Y|y|[Yy]es|YES|[Tt]rue|TRUE|[Oo]n|ON)$/,
  resolve: () => true,
  options: resolveSeq$1.boolOptions,
  stringify: boolStringify
}, {
  identify: value => typeof value === 'boolean',
  default: true,
  tag: 'tag:yaml.org,2002:bool',
  test: /^(?:N|n|[Nn]o|NO|[Ff]alse|FALSE|[Oo]ff|OFF)$/i,
  resolve: () => false,
  options: resolveSeq$1.boolOptions,
  stringify: boolStringify
}, {
  identify: intIdentify,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'BIN',
  test: /^([-+]?)0b([0-1_]+)$/,
  resolve: (str, sign, bin) => intResolve(sign, bin, 2),
  stringify: node => intStringify(node, 2, '0b')
}, {
  identify: intIdentify,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'OCT',
  test: /^([-+]?)0([0-7_]+)$/,
  resolve: (str, sign, oct) => intResolve(sign, oct, 8),
  stringify: node => intStringify(node, 8, '0')
}, {
  identify: intIdentify,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  test: /^([-+]?)([0-9][0-9_]*)$/,
  resolve: (str, sign, abs) => intResolve(sign, abs, 10),
  stringify: resolveSeq$1.stringifyNumber
}, {
  identify: intIdentify,
  default: true,
  tag: 'tag:yaml.org,2002:int',
  format: 'HEX',
  test: /^([-+]?)0x([0-9a-fA-F_]+)$/,
  resolve: (str, sign, hex) => intResolve(sign, hex, 16),
  stringify: node => intStringify(node, 16, '0x')
}, {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^(?:[-+]?\.inf|(\.nan))$/i,
  resolve: (str, nan) => nan ? NaN : str[0] === '-' ? Number.NEGATIVE_INFINITY : Number.POSITIVE_INFINITY,
  stringify: resolveSeq$1.stringifyNumber
}, {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:float',
  format: 'EXP',
  test: /^[-+]?([0-9][0-9_]*)?(\.[0-9_]*)?[eE][-+]?[0-9]+$/,
  resolve: str => parseFloat(str.replace(/_/g, '')),
  stringify: ({
    value
  }) => Number(value).toExponential()
}, {
  identify: value => typeof value === 'number',
  default: true,
  tag: 'tag:yaml.org,2002:float',
  test: /^[-+]?(?:[0-9][0-9_]*)?\.([0-9_]*)$/,

  resolve(str, frac) {
    const node = new resolveSeq$1.Scalar(parseFloat(str.replace(/_/g, '')));

    if (frac) {
      const f = frac.replace(/_/g, '');
      if (f[f.length - 1] === '0') node.minFractionDigits = f.length;
    }

    return node;
  },

  stringify: resolveSeq$1.stringifyNumber
}], warnings$1.binary, warnings$1.omap, warnings$1.pairs, warnings$1.set, warnings$1.intTime, warnings$1.floatTime, warnings$1.timestamp);

const schemas = {
  core: core$2,
  failsafe,
  json,
  yaml11
};
const tags = {
  binary: warnings$1.binary,
  bool: boolObj,
  float: floatObj,
  floatExp: expObj,
  floatNaN: nanObj,
  floatTime: warnings$1.floatTime,
  int: intObj,
  intHex: hexObj,
  intOct: octObj,
  intTime: warnings$1.intTime,
  map: map$1,
  null: nullObj,
  omap: warnings$1.omap,
  pairs: warnings$1.pairs,
  seq,
  set: warnings$1.set,
  timestamp: warnings$1.timestamp
};

function findTagObject(value, tagName, tags) {
  if (tagName) {
    const match = tags.filter(t => t.tag === tagName);
    const tagObj = match.find(t => !t.format) || match[0];
    if (!tagObj) throw new Error(`Tag ${tagName} not found`);
    return tagObj;
  } // TODO: deprecate/remove class check


  return tags.find(t => (t.identify && t.identify(value) || t.class && value instanceof t.class) && !t.format);
}

function createNode$1(value, tagName, ctx) {
  if (value instanceof resolveSeq$1.Node) return value;
  const {
    defaultPrefix,
    onTagObj,
    prevObjects,
    schema,
    wrapScalars
  } = ctx;
  if (tagName && tagName.startsWith('!!')) tagName = defaultPrefix + tagName.slice(2);
  let tagObj = findTagObject(value, tagName, schema.tags);

  if (!tagObj) {
    if (typeof value.toJSON === 'function') value = value.toJSON();
    if (!value || typeof value !== 'object') return wrapScalars ? new resolveSeq$1.Scalar(value) : value;
    tagObj = value instanceof Map ? map$1 : value[Symbol.iterator] ? seq : map$1;
  }

  if (onTagObj) {
    onTagObj(tagObj);
    delete ctx.onTagObj;
  } // Detect duplicate references to the same object & use Alias nodes for all
  // after first. The `obj` wrapper allows for circular references to resolve.


  const obj = {
    value: undefined,
    node: undefined
  };

  if (value && typeof value === 'object' && prevObjects) {
    const prev = prevObjects.get(value);

    if (prev) {
      const alias = new resolveSeq$1.Alias(prev); // leaves source dirty; must be cleaned by caller

      ctx.aliasNodes.push(alias); // defined along with prevObjects

      return alias;
    }

    obj.value = value;
    prevObjects.set(value, obj);
  }

  obj.node = tagObj.createNode ? tagObj.createNode(ctx.schema, value, ctx) : wrapScalars ? new resolveSeq$1.Scalar(value) : value;
  if (tagName && obj.node instanceof resolveSeq$1.Node) obj.node.tag = tagName;
  return obj.node;
}

function getSchemaTags(schemas, knownTags, customTags, schemaId) {
  let tags = schemas[schemaId.replace(/\W/g, '')]; // 'yaml-1.1' -> 'yaml11'

  if (!tags) {
    const keys = Object.keys(schemas).map(key => JSON.stringify(key)).join(', ');
    throw new Error(`Unknown schema "${schemaId}"; use one of ${keys}`);
  }

  if (Array.isArray(customTags)) {
    for (const tag of customTags) tags = tags.concat(tag);
  } else if (typeof customTags === 'function') {
    tags = customTags(tags.slice());
  }

  for (let i = 0; i < tags.length; ++i) {
    const tag = tags[i];

    if (typeof tag === 'string') {
      const tagObj = knownTags[tag];

      if (!tagObj) {
        const keys = Object.keys(knownTags).map(key => JSON.stringify(key)).join(', ');
        throw new Error(`Unknown custom tag "${tag}"; use one of ${keys}`);
      }

      tags[i] = tagObj;
    }
  }

  return tags;
}

const sortMapEntriesByKey = (a, b) => a.key < b.key ? -1 : a.key > b.key ? 1 : 0;

class Schema$2 {
  // TODO: remove in v2
  // TODO: remove in v2
  constructor({
    customTags,
    merge,
    schema,
    sortMapEntries,
    tags: deprecatedCustomTags
  }) {
    this.merge = !!merge;
    this.name = schema;
    this.sortMapEntries = sortMapEntries === true ? sortMapEntriesByKey : sortMapEntries || null;
    if (!customTags && deprecatedCustomTags) warnings$1.warnOptionDeprecation('tags', 'customTags');
    this.tags = getSchemaTags(schemas, tags, customTags || deprecatedCustomTags, schema);
  }

  createNode(value, wrapScalars, tagName, ctx) {
    const baseCtx = {
      defaultPrefix: Schema$2.defaultPrefix,
      schema: this,
      wrapScalars
    };
    const createCtx = ctx ? Object.assign(ctx, baseCtx) : baseCtx;
    return createNode$1(value, tagName, createCtx);
  }

  createPair(key, value, ctx) {
    if (!ctx) ctx = {
      wrapScalars: true
    };
    const k = this.createNode(key, ctx.wrapScalars, null, ctx);
    const v = this.createNode(value, ctx.wrapScalars, null, ctx);
    return new resolveSeq$1.Pair(k, v);
  }

}

PlainValue$2._defineProperty(Schema$2, "defaultPrefix", PlainValue$2.defaultTagPrefix);

PlainValue$2._defineProperty(Schema$2, "defaultTags", PlainValue$2.defaultTags);

Schema88e323a7.Schema = Schema$2;

var PlainValue$1 = PlainValueEc8e588e;
var resolveSeq = resolveSeqD03cb037;
var Schema$1 = Schema88e323a7;

const defaultOptions$1 = {
  anchorPrefix: 'a',
  customTags: null,
  indent: 2,
  indentSeq: true,
  keepCstNodes: false,
  keepNodeTypes: true,
  keepBlobsInJSON: true,
  mapAsMap: false,
  maxAliasCount: 100,
  prettyErrors: false,
  // TODO Set true in v2
  simpleKeys: false,
  version: '1.2'
};
const scalarOptions = {
  get binary() {
    return resolveSeq.binaryOptions;
  },

  set binary(opt) {
    Object.assign(resolveSeq.binaryOptions, opt);
  },

  get bool() {
    return resolveSeq.boolOptions;
  },

  set bool(opt) {
    Object.assign(resolveSeq.boolOptions, opt);
  },

  get int() {
    return resolveSeq.intOptions;
  },

  set int(opt) {
    Object.assign(resolveSeq.intOptions, opt);
  },

  get null() {
    return resolveSeq.nullOptions;
  },

  set null(opt) {
    Object.assign(resolveSeq.nullOptions, opt);
  },

  get str() {
    return resolveSeq.strOptions;
  },

  set str(opt) {
    Object.assign(resolveSeq.strOptions, opt);
  }

};
const documentOptions = {
  '1.0': {
    schema: 'yaml-1.1',
    merge: true,
    tagPrefixes: [{
      handle: '!',
      prefix: PlainValue$1.defaultTagPrefix
    }, {
      handle: '!!',
      prefix: 'tag:private.yaml.org,2002:'
    }]
  },
  1.1: {
    schema: 'yaml-1.1',
    merge: true,
    tagPrefixes: [{
      handle: '!',
      prefix: '!'
    }, {
      handle: '!!',
      prefix: PlainValue$1.defaultTagPrefix
    }]
  },
  1.2: {
    schema: 'core',
    merge: false,
    tagPrefixes: [{
      handle: '!',
      prefix: '!'
    }, {
      handle: '!!',
      prefix: PlainValue$1.defaultTagPrefix
    }]
  }
};

function stringifyTag(doc, tag) {
  if ((doc.version || doc.options.version) === '1.0') {
    const priv = tag.match(/^tag:private\.yaml\.org,2002:([^:/]+)$/);
    if (priv) return '!' + priv[1];
    const vocab = tag.match(/^tag:([a-zA-Z0-9-]+)\.yaml\.org,2002:(.*)/);
    return vocab ? `!${vocab[1]}/${vocab[2]}` : `!${tag.replace(/^tag:/, '')}`;
  }

  let p = doc.tagPrefixes.find(p => tag.indexOf(p.prefix) === 0);

  if (!p) {
    const dtp = doc.getDefaults().tagPrefixes;
    p = dtp && dtp.find(p => tag.indexOf(p.prefix) === 0);
  }

  if (!p) return tag[0] === '!' ? tag : `!<${tag}>`;
  const suffix = tag.substr(p.prefix.length).replace(/[!,[\]{}]/g, ch => ({
    '!': '%21',
    ',': '%2C',
    '[': '%5B',
    ']': '%5D',
    '{': '%7B',
    '}': '%7D'
  })[ch]);
  return p.handle + suffix;
}

function getTagObject(tags, item) {
  if (item instanceof resolveSeq.Alias) return resolveSeq.Alias;

  if (item.tag) {
    const match = tags.filter(t => t.tag === item.tag);
    if (match.length > 0) return match.find(t => t.format === item.format) || match[0];
  }

  let tagObj, obj;

  if (item instanceof resolveSeq.Scalar) {
    obj = item.value; // TODO: deprecate/remove class check

    const match = tags.filter(t => t.identify && t.identify(obj) || t.class && obj instanceof t.class);
    tagObj = match.find(t => t.format === item.format) || match.find(t => !t.format);
  } else {
    obj = item;
    tagObj = tags.find(t => t.nodeClass && obj instanceof t.nodeClass);
  }

  if (!tagObj) {
    const name = obj && obj.constructor ? obj.constructor.name : typeof obj;
    throw new Error(`Tag not resolved for ${name} value`);
  }

  return tagObj;
} // needs to be called before value stringifier to allow for circular anchor refs


function stringifyProps(node, tagObj, {
  anchors,
  doc
}) {
  const props = [];
  const anchor = doc.anchors.getName(node);

  if (anchor) {
    anchors[anchor] = node;
    props.push(`&${anchor}`);
  }

  if (node.tag) {
    props.push(stringifyTag(doc, node.tag));
  } else if (!tagObj.default) {
    props.push(stringifyTag(doc, tagObj.tag));
  }

  return props.join(' ');
}

function stringify$2(item, ctx, onComment, onChompKeep) {
  const {
    anchors,
    schema
  } = ctx.doc;
  let tagObj;

  if (!(item instanceof resolveSeq.Node)) {
    const createCtx = {
      aliasNodes: [],
      onTagObj: o => tagObj = o,
      prevObjects: new Map()
    };
    item = schema.createNode(item, true, null, createCtx);

    for (const alias of createCtx.aliasNodes) {
      alias.source = alias.source.node;
      let name = anchors.getName(alias.source);

      if (!name) {
        name = anchors.newName();
        anchors.map[name] = alias.source;
      }
    }
  }

  if (item instanceof resolveSeq.Pair) return item.toString(ctx, onComment, onChompKeep);
  if (!tagObj) tagObj = getTagObject(schema.tags, item);
  const props = stringifyProps(item, tagObj, ctx);
  if (props.length > 0) ctx.indentAtStart = (ctx.indentAtStart || 0) + props.length + 1;
  const str = typeof tagObj.stringify === 'function' ? tagObj.stringify(item, ctx, onComment, onChompKeep) : item instanceof resolveSeq.Scalar ? resolveSeq.stringifyString(item, ctx, onComment, onChompKeep) : item.toString(ctx, onComment, onChompKeep);
  if (!props) return str;
  return item instanceof resolveSeq.Scalar || str[0] === '{' || str[0] === '[' ? `${props} ${str}` : `${props}\n${ctx.indent}${str}`;
}

class Anchors {
  static validAnchorNode(node) {
    return node instanceof resolveSeq.Scalar || node instanceof resolveSeq.YAMLSeq || node instanceof resolveSeq.YAMLMap;
  }

  constructor(prefix) {
    PlainValue$1._defineProperty(this, "map", Object.create(null));

    this.prefix = prefix;
  }

  createAlias(node, name) {
    this.setAnchor(node, name);
    return new resolveSeq.Alias(node);
  }

  createMergePair(...sources) {
    const merge = new resolveSeq.Merge();
    merge.value.items = sources.map(s => {
      if (s instanceof resolveSeq.Alias) {
        if (s.source instanceof resolveSeq.YAMLMap) return s;
      } else if (s instanceof resolveSeq.YAMLMap) {
        return this.createAlias(s);
      }

      throw new Error('Merge sources must be Map nodes or their Aliases');
    });
    return merge;
  }

  getName(node) {
    const {
      map
    } = this;
    return Object.keys(map).find(a => map[a] === node);
  }

  getNames() {
    return Object.keys(this.map);
  }

  getNode(name) {
    return this.map[name];
  }

  newName(prefix) {
    if (!prefix) prefix = this.prefix;
    const names = Object.keys(this.map);

    for (let i = 1; true; ++i) {
      const name = `${prefix}${i}`;
      if (!names.includes(name)) return name;
    }
  } // During parsing, map & aliases contain CST nodes


  resolveNodes() {
    const {
      map,
      _cstAliases
    } = this;
    Object.keys(map).forEach(a => {
      map[a] = map[a].resolved;
    });

    _cstAliases.forEach(a => {
      a.source = a.source.resolved;
    });

    delete this._cstAliases;
  }

  setAnchor(node, name) {
    if (node != null && !Anchors.validAnchorNode(node)) {
      throw new Error('Anchors may only be set for Scalar, Seq and Map nodes');
    }

    if (name && /[\x00-\x19\s,[\]{}]/.test(name)) {
      throw new Error('Anchor names must not contain whitespace or control characters');
    }

    const {
      map
    } = this;
    const prev = node && Object.keys(map).find(a => map[a] === node);

    if (prev) {
      if (!name) {
        return prev;
      } else if (prev !== name) {
        delete map[prev];
        map[name] = node;
      }
    } else {
      if (!name) {
        if (!node) return null;
        name = this.newName();
      }

      map[name] = node;
    }

    return name;
  }

}

const visit$1 = (node, tags) => {
  if (node && typeof node === 'object') {
    const {
      tag
    } = node;

    if (node instanceof resolveSeq.Collection) {
      if (tag) tags[tag] = true;
      node.items.forEach(n => visit$1(n, tags));
    } else if (node instanceof resolveSeq.Pair) {
      visit$1(node.key, tags);
      visit$1(node.value, tags);
    } else if (node instanceof resolveSeq.Scalar) {
      if (tag) tags[tag] = true;
    }
  }

  return tags;
};

const listTagNames = node => Object.keys(visit$1(node, {}));

function parseContents(doc, contents) {
  const comments = {
    before: [],
    after: []
  };
  let body = undefined;
  let spaceBefore = false;

  for (const node of contents) {
    if (node.valueRange) {
      if (body !== undefined) {
        const msg = 'Document contains trailing content not separated by a ... or --- line';
        doc.errors.push(new PlainValue$1.YAMLSyntaxError(node, msg));
        break;
      }

      const res = resolveSeq.resolveNode(doc, node);

      if (spaceBefore) {
        res.spaceBefore = true;
        spaceBefore = false;
      }

      body = res;
    } else if (node.comment !== null) {
      const cc = body === undefined ? comments.before : comments.after;
      cc.push(node.comment);
    } else if (node.type === PlainValue$1.Type.BLANK_LINE) {
      spaceBefore = true;

      if (body === undefined && comments.before.length > 0 && !doc.commentBefore) {
        // space-separated comments at start are parsed as document comments
        doc.commentBefore = comments.before.join('\n');
        comments.before = [];
      }
    }
  }

  doc.contents = body || null;

  if (!body) {
    doc.comment = comments.before.concat(comments.after).join('\n') || null;
  } else {
    const cb = comments.before.join('\n');

    if (cb) {
      const cbNode = body instanceof resolveSeq.Collection && body.items[0] ? body.items[0] : body;
      cbNode.commentBefore = cbNode.commentBefore ? `${cb}\n${cbNode.commentBefore}` : cb;
    }

    doc.comment = comments.after.join('\n') || null;
  }
}

function resolveTagDirective({
  tagPrefixes
}, directive) {
  const [handle, prefix] = directive.parameters;

  if (!handle || !prefix) {
    const msg = 'Insufficient parameters given for %TAG directive';
    throw new PlainValue$1.YAMLSemanticError(directive, msg);
  }

  if (tagPrefixes.some(p => p.handle === handle)) {
    const msg = 'The %TAG directive must only be given at most once per handle in the same document.';
    throw new PlainValue$1.YAMLSemanticError(directive, msg);
  }

  return {
    handle,
    prefix
  };
}

function resolveYamlDirective(doc, directive) {
  let [version] = directive.parameters;
  if (directive.name === 'YAML:1.0') version = '1.0';

  if (!version) {
    const msg = 'Insufficient parameters given for %YAML directive';
    throw new PlainValue$1.YAMLSemanticError(directive, msg);
  }

  if (!documentOptions[version]) {
    const v0 = doc.version || doc.options.version;
    const msg = `Document will be parsed as YAML ${v0} rather than YAML ${version}`;
    doc.warnings.push(new PlainValue$1.YAMLWarning(directive, msg));
  }

  return version;
}

function parseDirectives(doc, directives, prevDoc) {
  const directiveComments = [];
  let hasDirectives = false;

  for (const directive of directives) {
    const {
      comment,
      name
    } = directive;

    switch (name) {
      case 'TAG':
        try {
          doc.tagPrefixes.push(resolveTagDirective(doc, directive));
        } catch (error) {
          doc.errors.push(error);
        }

        hasDirectives = true;
        break;

      case 'YAML':
      case 'YAML:1.0':
        if (doc.version) {
          const msg = 'The %YAML directive must only be given at most once per document.';
          doc.errors.push(new PlainValue$1.YAMLSemanticError(directive, msg));
        }

        try {
          doc.version = resolveYamlDirective(doc, directive);
        } catch (error) {
          doc.errors.push(error);
        }

        hasDirectives = true;
        break;

      default:
        if (name) {
          const msg = `YAML only supports %TAG and %YAML directives, and not %${name}`;
          doc.warnings.push(new PlainValue$1.YAMLWarning(directive, msg));
        }

    }

    if (comment) directiveComments.push(comment);
  }

  if (prevDoc && !hasDirectives && '1.1' === (doc.version || prevDoc.version || doc.options.version)) {
    const copyTagPrefix = ({
      handle,
      prefix
    }) => ({
      handle,
      prefix
    });

    doc.tagPrefixes = prevDoc.tagPrefixes.map(copyTagPrefix);
    doc.version = prevDoc.version;
  }

  doc.commentBefore = directiveComments.join('\n') || null;
}

function assertCollection(contents) {
  if (contents instanceof resolveSeq.Collection) return true;
  throw new Error('Expected a YAML collection as document contents');
}

class Document$2 {
  constructor(options) {
    this.anchors = new Anchors(options.anchorPrefix);
    this.commentBefore = null;
    this.comment = null;
    this.contents = null;
    this.directivesEndMarker = null;
    this.errors = [];
    this.options = options;
    this.schema = null;
    this.tagPrefixes = [];
    this.version = null;
    this.warnings = [];
  }

  add(value) {
    assertCollection(this.contents);
    return this.contents.add(value);
  }

  addIn(path, value) {
    assertCollection(this.contents);
    this.contents.addIn(path, value);
  }

  delete(key) {
    assertCollection(this.contents);
    return this.contents.delete(key);
  }

  deleteIn(path) {
    if (resolveSeq.isEmptyPath(path)) {
      if (this.contents == null) return false;
      this.contents = null;
      return true;
    }

    assertCollection(this.contents);
    return this.contents.deleteIn(path);
  }

  getDefaults() {
    return Document$2.defaults[this.version] || Document$2.defaults[this.options.version] || {};
  }

  get(key, keepScalar) {
    return this.contents instanceof resolveSeq.Collection ? this.contents.get(key, keepScalar) : undefined;
  }

  getIn(path, keepScalar) {
    if (resolveSeq.isEmptyPath(path)) return !keepScalar && this.contents instanceof resolveSeq.Scalar ? this.contents.value : this.contents;
    return this.contents instanceof resolveSeq.Collection ? this.contents.getIn(path, keepScalar) : undefined;
  }

  has(key) {
    return this.contents instanceof resolveSeq.Collection ? this.contents.has(key) : false;
  }

  hasIn(path) {
    if (resolveSeq.isEmptyPath(path)) return this.contents !== undefined;
    return this.contents instanceof resolveSeq.Collection ? this.contents.hasIn(path) : false;
  }

  set(key, value) {
    assertCollection(this.contents);
    this.contents.set(key, value);
  }

  setIn(path, value) {
    if (resolveSeq.isEmptyPath(path)) this.contents = value;else {
      assertCollection(this.contents);
      this.contents.setIn(path, value);
    }
  }

  setSchema(id, customTags) {
    if (!id && !customTags && this.schema) return;
    if (typeof id === 'number') id = id.toFixed(1);

    if (id === '1.0' || id === '1.1' || id === '1.2') {
      if (this.version) this.version = id;else this.options.version = id;
      delete this.options.schema;
    } else if (id && typeof id === 'string') {
      this.options.schema = id;
    }

    if (Array.isArray(customTags)) this.options.customTags = customTags;
    const opt = Object.assign({}, this.getDefaults(), this.options);
    this.schema = new Schema$1.Schema(opt);
  }

  parse(node, prevDoc) {
    if (this.options.keepCstNodes) this.cstNode = node;
    if (this.options.keepNodeTypes) this.type = 'DOCUMENT';
    const {
      directives = [],
      contents = [],
      directivesEndMarker,
      error,
      valueRange
    } = node;

    if (error) {
      if (!error.source) error.source = this;
      this.errors.push(error);
    }

    parseDirectives(this, directives, prevDoc);
    if (directivesEndMarker) this.directivesEndMarker = true;
    this.range = valueRange ? [valueRange.start, valueRange.end] : null;
    this.setSchema();
    this.anchors._cstAliases = [];
    parseContents(this, contents);
    this.anchors.resolveNodes();

    if (this.options.prettyErrors) {
      for (const error of this.errors) if (error instanceof PlainValue$1.YAMLError) error.makePretty();

      for (const warn of this.warnings) if (warn instanceof PlainValue$1.YAMLError) warn.makePretty();
    }

    return this;
  }

  listNonDefaultTags() {
    return listTagNames(this.contents).filter(t => t.indexOf(Schema$1.Schema.defaultPrefix) !== 0);
  }

  setTagPrefix(handle, prefix) {
    if (handle[0] !== '!' || handle[handle.length - 1] !== '!') throw new Error('Handle must start and end with !');

    if (prefix) {
      const prev = this.tagPrefixes.find(p => p.handle === handle);
      if (prev) prev.prefix = prefix;else this.tagPrefixes.push({
        handle,
        prefix
      });
    } else {
      this.tagPrefixes = this.tagPrefixes.filter(p => p.handle !== handle);
    }
  }

  toJSON(arg, onAnchor) {
    const {
      keepBlobsInJSON,
      mapAsMap,
      maxAliasCount
    } = this.options;
    const keep = keepBlobsInJSON && (typeof arg !== 'string' || !(this.contents instanceof resolveSeq.Scalar));
    const ctx = {
      doc: this,
      indentStep: '  ',
      keep,
      mapAsMap: keep && !!mapAsMap,
      maxAliasCount,
      stringify: stringify$2 // Requiring directly in Pair would create circular dependencies

    };
    const anchorNames = Object.keys(this.anchors.map);
    if (anchorNames.length > 0) ctx.anchors = new Map(anchorNames.map(name => [this.anchors.map[name], {
      alias: [],
      aliasCount: 0,
      count: 1
    }]));
    const res = resolveSeq.toJSON(this.contents, arg, ctx);
    if (typeof onAnchor === 'function' && ctx.anchors) for (const {
      count,
      res
    } of ctx.anchors.values()) onAnchor(res, count);
    return res;
  }

  toString() {
    if (this.errors.length > 0) throw new Error('Document with errors cannot be stringified');
    const indentSize = this.options.indent;

    if (!Number.isInteger(indentSize) || indentSize <= 0) {
      const s = JSON.stringify(indentSize);
      throw new Error(`"indent" option must be a positive integer, not ${s}`);
    }

    this.setSchema();
    const lines = [];
    let hasDirectives = false;

    if (this.version) {
      let vd = '%YAML 1.2';

      if (this.schema.name === 'yaml-1.1') {
        if (this.version === '1.0') vd = '%YAML:1.0';else if (this.version === '1.1') vd = '%YAML 1.1';
      }

      lines.push(vd);
      hasDirectives = true;
    }

    const tagNames = this.listNonDefaultTags();
    this.tagPrefixes.forEach(({
      handle,
      prefix
    }) => {
      if (tagNames.some(t => t.indexOf(prefix) === 0)) {
        lines.push(`%TAG ${handle} ${prefix}`);
        hasDirectives = true;
      }
    });
    if (hasDirectives || this.directivesEndMarker) lines.push('---');

    if (this.commentBefore) {
      if (hasDirectives || !this.directivesEndMarker) lines.unshift('');
      lines.unshift(this.commentBefore.replace(/^/gm, '#'));
    }

    const ctx = {
      anchors: Object.create(null),
      doc: this,
      indent: '',
      indentStep: ' '.repeat(indentSize),
      stringify: stringify$2 // Requiring directly in nodes would create circular dependencies

    };
    let chompKeep = false;
    let contentComment = null;

    if (this.contents) {
      if (this.contents instanceof resolveSeq.Node) {
        if (this.contents.spaceBefore && (hasDirectives || this.directivesEndMarker)) lines.push('');
        if (this.contents.commentBefore) lines.push(this.contents.commentBefore.replace(/^/gm, '#')); // top-level block scalars need to be indented if followed by a comment

        ctx.forceBlockIndent = !!this.comment;
        contentComment = this.contents.comment;
      }

      const onChompKeep = contentComment ? null : () => chompKeep = true;
      const body = stringify$2(this.contents, ctx, () => contentComment = null, onChompKeep);
      lines.push(resolveSeq.addComment(body, '', contentComment));
    } else if (this.contents !== undefined) {
      lines.push(stringify$2(this.contents, ctx));
    }

    if (this.comment) {
      if ((!chompKeep || contentComment) && lines[lines.length - 1] !== '') lines.push('');
      lines.push(this.comment.replace(/^/gm, '#'));
    }

    return lines.join('\n') + '\n';
  }

}

PlainValue$1._defineProperty(Document$2, "defaults", documentOptions);

Document9b4560a1.Document = Document$2;
Document9b4560a1.defaultOptions = defaultOptions$1;
Document9b4560a1.scalarOptions = scalarOptions;

var parseCst = parseCst$1;
var Document$1 = Document9b4560a1;
var Schema = Schema88e323a7;
var PlainValue = PlainValueEc8e588e;
var warnings = warnings1000a372;


function createNode(value, wrapScalars = true, tag) {
  if (tag === undefined && typeof wrapScalars === 'string') {
    tag = wrapScalars;
    wrapScalars = true;
  }

  const options = Object.assign({}, Document$1.Document.defaults[Document$1.defaultOptions.version], Document$1.defaultOptions);
  const schema = new Schema.Schema(options);
  return schema.createNode(value, wrapScalars, tag);
}

class Document extends Document$1.Document {
  constructor(options) {
    super(Object.assign({}, Document$1.defaultOptions, options));
  }

}

function parseAllDocuments(src, options) {
  const stream = [];
  let prev;

  for (const cstDoc of parseCst.parse(src)) {
    const doc = new Document(options);
    doc.parse(cstDoc, prev);
    stream.push(doc);
    prev = doc;
  }

  return stream;
}

function parseDocument(src, options) {
  const cst = parseCst.parse(src);
  const doc = new Document(options).parse(cst[0]);

  if (cst.length > 1) {
    const errMsg = 'Source contains multiple documents; please use YAML.parseAllDocuments()';
    doc.errors.unshift(new PlainValue.YAMLSemanticError(cst[1], errMsg));
  }

  return doc;
}

function parse$g(src, options) {
  const doc = parseDocument(src, options);
  doc.warnings.forEach(warning => warnings.warn(warning));
  if (doc.errors.length > 0) throw doc.errors[0];
  return doc.toJSON();
}

function stringify$1(value, options) {
  const doc = new Document(options);
  doc.contents = value;
  return String(doc);
}

const YAML = {
  createNode,
  defaultOptions: Document$1.defaultOptions,
  Document,
  parse: parse$g,
  parseAllDocuments,
  parseCST: parseCst.parse,
  parseDocument,
  scalarOptions: Document$1.scalarOptions,
  stringify: stringify$1
};

dist$1.YAML = YAML;

var yaml$1 = dist$1.YAML;

var importCwd = {exports: {}};

var importFrom$1 = {exports: {}};

var resolveFrom$2 = {exports: {}};

const path$i = path__default;
const Module = require$$0__default$3;
const fs$i = fs__default;

const resolveFrom$1 = (fromDirectory, moduleId, silent) => {
	if (typeof fromDirectory !== 'string') {
		throw new TypeError(`Expected \`fromDir\` to be of type \`string\`, got \`${typeof fromDirectory}\``);
	}

	if (typeof moduleId !== 'string') {
		throw new TypeError(`Expected \`moduleId\` to be of type \`string\`, got \`${typeof moduleId}\``);
	}

	try {
		fromDirectory = fs$i.realpathSync(fromDirectory);
	} catch (error) {
		if (error.code === 'ENOENT') {
			fromDirectory = path$i.resolve(fromDirectory);
		} else if (silent) {
			return;
		} else {
			throw error;
		}
	}

	const fromFile = path$i.join(fromDirectory, 'noop.js');

	const resolveFileName = () => Module._resolveFilename(moduleId, {
		id: fromFile,
		filename: fromFile,
		paths: Module._nodeModulePaths(fromDirectory)
	});

	if (silent) {
		try {
			return resolveFileName();
		} catch (error) {
			return;
		}
	}

	return resolveFileName();
};

resolveFrom$2.exports = (fromDirectory, moduleId) => resolveFrom$1(fromDirectory, moduleId);
resolveFrom$2.exports.silent = (fromDirectory, moduleId) => resolveFrom$1(fromDirectory, moduleId, true);

const resolveFrom = resolveFrom$2.exports;

importFrom$1.exports = (fromDirectory, moduleId) => eval('require')(resolveFrom(fromDirectory, moduleId));

importFrom$1.exports.silent = (fromDirectory, moduleId) => {
	try {
		return eval('require')(resolveFrom(fromDirectory, moduleId));
	} catch (_) {}
};

const importFrom = importFrom$1.exports;

importCwd.exports = moduleId => importFrom(process.cwd(), moduleId);
importCwd.exports.silent = moduleId => importFrom.silent(process.cwd(), moduleId);

const req$1 = importCwd.exports;

/**
 * Load Options
 *
 * @private
 * @method options
 *
 * @param  {Object} config  PostCSS Config
 *
 * @return {Object} options PostCSS Options
 */
const options = (config, file) => {
  if (config.parser && typeof config.parser === 'string') {
    try {
      config.parser = req$1(config.parser);
    } catch (err) {
      throw new Error(`Loading PostCSS Parser failed: ${err.message}\n\n(@${file})`)
    }
  }

  if (config.syntax && typeof config.syntax === 'string') {
    try {
      config.syntax = req$1(config.syntax);
    } catch (err) {
      throw new Error(`Loading PostCSS Syntax failed: ${err.message}\n\n(@${file})`)
    }
  }

  if (config.stringifier && typeof config.stringifier === 'string') {
    try {
      config.stringifier = req$1(config.stringifier);
    } catch (err) {
      throw new Error(`Loading PostCSS Stringifier failed: ${err.message}\n\n(@${file})`)
    }
  }

  if (config.plugins) {
    delete config.plugins;
  }

  return config
};

var options_1 = options;

const req = importCwd.exports;

/**
 * Plugin Loader
 *
 * @private
 * @method load
 *
 * @param  {String} plugin PostCSS Plugin Name
 * @param  {Object} options PostCSS Plugin Options
 *
 * @return {Function} PostCSS Plugin
 */
const load$1 = (plugin, options, file) => {
  try {
    if (
      options === null ||
      options === undefined ||
      Object.keys(options).length === 0
    ) {
      return req(plugin)
    } else {
      return req(plugin)(options)
    }
  } catch (err) {
    throw new Error(`Loading PostCSS Plugin failed: ${err.message}\n\n(@${file})`)
  }
};

/**
 * Load Plugins
 *
 * @private
 * @method plugins
 *
 * @param {Object} config PostCSS Config Plugins
 *
 * @return {Array} plugins PostCSS Plugins
 */
const plugins = (config, file) => {
  let plugins = [];

  if (Array.isArray(config.plugins)) {
    plugins = config.plugins.filter(Boolean);
  } else {
    plugins = Object.keys(config.plugins)
      .filter((plugin) => {
        return config.plugins[plugin] !== false ? plugin : ''
      })
      .map((plugin) => {
        return load$1(plugin, config.plugins[plugin], file)
      });
  }

  if (plugins.length && plugins.length > 0) {
    plugins.forEach((plugin, i) => {
      if (plugin.default) {
        plugin = plugin.default;
      }

      if (plugin.postcss === true) {
        plugin = plugin();
      } else if (plugin.postcss) {
        plugin = plugin.postcss;
      }

      if (
        // eslint-disable-next-line
        !(
          (typeof plugin === 'object' && Array.isArray(plugin.plugins)) ||
          (typeof plugin === 'object' && plugin.postcssPlugin) ||
          (typeof plugin === 'function')
        )
      ) {
        throw new TypeError(`Invalid PostCSS Plugin found at: plugins[${i}]\n\n(@${file})`)
      }
    });
  }

  return plugins
};

var plugins_1 = plugins;

const resolve$2 = path__default.resolve;

const config$1 = dist$2;
const yaml = yaml$1;

const loadOptions = options_1;
const loadPlugins = plugins_1;

/* istanbul ignore next */
const interopRequireDefault = (obj) => obj && obj.__esModule ? obj : { default: obj };

/**
 * Process the result from cosmiconfig
 *
 * @param  {Object} ctx Config Context
 * @param  {Object} result Cosmiconfig result
 *
 * @return {Object} PostCSS Config
 */
const processResult = (ctx, result) => {
  const file = result.filepath || '';
  let config = interopRequireDefault(result.config).default || {};

  if (typeof config === 'function') {
    config = config(ctx);
  } else {
    config = Object.assign({}, config, ctx);
  }

  if (!config.plugins) {
    config.plugins = [];
  }

  return {
    plugins: loadPlugins(config, file),
    options: loadOptions(config, file),
    file: file
  }
};

/**
 * Builds the Config Context
 *
 * @param  {Object} ctx Config Context
 *
 * @return {Object} Config Context
 */
const createContext = (ctx) => {
  /**
   * @type {Object}
   *
   * @prop {String} cwd=process.cwd() Config search start location
   * @prop {String} env=process.env.NODE_ENV Config Enviroment, will be set to `development` by `postcss-load-config` if `process.env.NODE_ENV` is `undefined`
   */
  ctx = Object.assign({
    cwd: process.cwd(),
    env: process.env.NODE_ENV
  }, ctx);

  if (!ctx.env) {
    process.env.NODE_ENV = 'development';
  }

  return ctx
};

const addTypeScriptLoader = (options = {}, loader) => {
  const moduleName = 'postcss';

  return {
    ...options,
    searchPlaces: [
      ...(options.searchPlaces || []),
      'package.json',
      `.${moduleName}rc`,
      `.${moduleName}rc.json`,
      `.${moduleName}rc.yaml`,
      `.${moduleName}rc.yml`,
      `.${moduleName}rc.ts`,
      `.${moduleName}rc.js`,
      `.${moduleName}rc.cjs`,
      `${moduleName}.config.ts`,
      `${moduleName}.config.js`,
      `${moduleName}.config.cjs`
    ],
    loaders: {
      ...options.loaders,
      '.yaml': (filepath, content) => yaml.parse(content),
      '.yml': (filepath, content) => yaml.parse(content),
      '.ts': loader
    }
  }
};

const withTypeScriptLoader = (rcFunc) => {
  return (ctx, path, options) => {
    return rcFunc(ctx, path, addTypeScriptLoader(options, (configFile) => {
      let registerer = { enabled () {} };

      try {
        // Register TypeScript compiler instance
        registerer = require('ts-node').register();

        return commonjsRequire(configFile)
      } catch (err) {
        if (err.code === 'MODULE_NOT_FOUND') {
          throw new Error(
            `'ts-node' is required for the TypeScript configuration files. Make sure it is installed\nError: ${err.message}`
          )
        }

        throw err
      } finally {
        registerer.enabled(false);
      }
    }))
  }
};

/**
 * Load Config
 *
 * @method rc
 *
 * @param  {Object} ctx Config Context
 * @param  {String} path Config Path
 * @param  {Object} options Config Options
 *
 * @return {Promise} config PostCSS Config
 */
const rc = withTypeScriptLoader((ctx, path, options) => {
  /**
   * @type {Object} The full Config Context
   */
  ctx = createContext(ctx);

  /**
   * @type {String} `process.cwd()`
   */
  path = path ? resolve$2(path) : process.cwd();

  return config$1.lilconfig('postcss', options)
    .search(path)
    .then((result) => {
      if (!result) {
        throw new Error(`No PostCSS Config found in: ${path}`)
      }

      return processResult(ctx, result)
    })
});

rc.sync = withTypeScriptLoader((ctx, path, options) => {
  /**
   * @type {Object} The full Config Context
   */
  ctx = createContext(ctx);

  /**
   * @type {String} `process.cwd()`
   */
  path = path ? resolve$2(path) : process.cwd();

  const result = config$1.lilconfigSync('postcss', options).search(path);

  if (!result) {
    throw new Error(`No PostCSS Config found in: ${path}`)
  }

  return processResult(ctx, result)
});

/**
 * Autoload Config for PostCSS
 *
 * @author Michael Ciniawsky @michael-ciniawsky <michael.ciniawsky@gmail.com>
 * @license MIT
 *
 * @module postcss-load-config
 * @version 2.1.0
 *
 * @requires comsiconfig
 * @requires ./options
 * @requires ./plugins
 */
var src$1 = rc;

// Helper since Typescript can't detect readonly arrays with Array.isArray
function isArray$3(arg) {
    return Array.isArray(arg);
}
function ensureArray$1(thing) {
    if (isArray$3(thing))
        return thing;
    if (thing == null)
        return [];
    return [thing];
}

const normalizePath$3 = function normalizePath(filename) {
    return filename.split(path$t.win32.sep).join(path$t.posix.sep);
};

function getMatcherString$1(id, resolutionBase) {
    if (resolutionBase === false || path$t.isAbsolute(id) || id.startsWith('*')) {
        return id;
    }
    // resolve('') is valid and will default to process.cwd()
    const basePath = normalizePath$3(path$t.resolve(resolutionBase || ''))
        // escape all possible (posix + win) path characters that might interfere with regex
        .replace(/[-^$*+?.()|[\]{}]/g, '\\$&');
    // Note that we use posix.join because:
    // 1. the basePath has been normalized to use /
    // 2. the incoming glob (id) matcher, also uses /
    // otherwise Node will force backslash (\) on windows
    return path$t.posix.join(basePath, id);
}
const createFilter$1 = function createFilter(include, exclude, options) {
    const resolutionBase = options && options.resolve;
    const getMatcher = (id) => id instanceof RegExp
        ? id
        : {
            test: (what) => {
                // this refactor is a tad overly verbose but makes for easy debugging
                const pattern = getMatcherString$1(id, resolutionBase);
                const fn = picomatch$3(pattern, { dot: true });
                const result = fn(what);
                return result;
            }
        };
    const includeMatchers = ensureArray$1(include).map(getMatcher);
    const excludeMatchers = ensureArray$1(exclude).map(getMatcher);
    return function result(id) {
        if (typeof id !== 'string')
            return false;
        if (/\0/.test(id))
            return false;
        const pathId = normalizePath$3(id);
        for (let i = 0; i < excludeMatchers.length; ++i) {
            const matcher = excludeMatchers[i];
            if (matcher.test(pathId))
                return false;
        }
        for (let i = 0; i < includeMatchers.length; ++i) {
            const matcher = includeMatchers[i];
            if (matcher.test(pathId))
                return true;
        }
        return !includeMatchers.length;
    };
};

const reservedWords$2 = 'break case class catch const continue debugger default delete do else export extends finally for function if import in instanceof let new return super switch this throw try typeof var void while with yield enum await implements package protected static interface private public';
const builtins$1 = 'arguments Infinity NaN undefined null true false eval uneval isFinite isNaN parseFloat parseInt decodeURI decodeURIComponent encodeURI encodeURIComponent escape unescape Object Function Boolean Symbol Error EvalError InternalError RangeError ReferenceError SyntaxError TypeError URIError Number Math Date String RegExp Array Int8Array Uint8Array Uint8ClampedArray Int16Array Uint16Array Int32Array Uint32Array Float32Array Float64Array Map Set WeakMap WeakSet SIMD ArrayBuffer DataView JSON Promise Generator GeneratorFunction Reflect Proxy Intl';
const forbiddenIdentifiers$1 = new Set(`${reservedWords$2} ${builtins$1}`.split(' '));
forbiddenIdentifiers$1.add('');
const makeLegalIdentifier$1 = function makeLegalIdentifier(str) {
    let identifier = str
        .replace(/-(\w)/g, (_, letter) => letter.toUpperCase())
        .replace(/[^$_a-zA-Z0-9]/g, '_');
    if (/\d/.test(identifier[0]) || forbiddenIdentifiers$1.has(identifier)) {
        identifier = `_${identifier}`;
    }
    return identifier || '_';
};

function stringify(obj) {
    return (JSON.stringify(obj) || 'undefined').replace(/[\u2028\u2029]/g, (char) => `\\u${`000${char.charCodeAt(0).toString(16)}`.slice(-4)}`);
}
function serializeArray(arr, indent, baseIndent) {
    let output = '[';
    const separator = indent ? `\n${baseIndent}${indent}` : '';
    for (let i = 0; i < arr.length; i++) {
        const key = arr[i];
        output += `${i > 0 ? ',' : ''}${separator}${serialize(key, indent, baseIndent + indent)}`;
    }
    return `${output}${indent ? `\n${baseIndent}` : ''}]`;
}
function serializeObject(obj, indent, baseIndent) {
    let output = '{';
    const separator = indent ? `\n${baseIndent}${indent}` : '';
    const entries = Object.entries(obj);
    for (let i = 0; i < entries.length; i++) {
        const [key, value] = entries[i];
        const stringKey = makeLegalIdentifier$1(key) === key ? key : stringify(key);
        output += `${i > 0 ? ',' : ''}${separator}${stringKey}:${indent ? ' ' : ''}${serialize(value, indent, baseIndent + indent)}`;
    }
    return `${output}${indent ? `\n${baseIndent}` : ''}}`;
}
function serialize(obj, indent, baseIndent) {
    if (obj === Infinity)
        return 'Infinity';
    if (obj === -Infinity)
        return '-Infinity';
    if (obj === 0 && 1 / obj === -Infinity)
        return '-0';
    if (obj instanceof Date)
        return `new Date(${obj.getTime()})`;
    if (obj instanceof RegExp)
        return obj.toString();
    if (obj !== obj)
        return 'NaN'; // eslint-disable-line no-self-compare
    if (Array.isArray(obj))
        return serializeArray(obj, indent, baseIndent);
    if (obj === null)
        return 'null';
    if (typeof obj === 'object')
        return serializeObject(obj, indent, baseIndent);
    return stringify(obj);
}
const dataToEsm = function dataToEsm(data, options = {}) {
    const t = options.compact ? '' : 'indent' in options ? options.indent : '\t';
    const _ = options.compact ? '' : ' ';
    const n = options.compact ? '' : '\n';
    const declarationType = options.preferConst ? 'const' : 'var';
    if (options.namedExports === false ||
        typeof data !== 'object' ||
        Array.isArray(data) ||
        data instanceof Date ||
        data instanceof RegExp ||
        data === null) {
        const code = serialize(data, options.compact ? null : t, '');
        const magic = _ || (/^[{[\-\/]/.test(code) ? '' : ' '); // eslint-disable-line no-useless-escape
        return `export default${magic}${code};`;
    }
    let namedExportCode = '';
    const defaultExportRows = [];
    for (const [key, value] of Object.entries(data)) {
        if (key === makeLegalIdentifier$1(key)) {
            if (options.objectShorthand)
                defaultExportRows.push(key);
            else
                defaultExportRows.push(`${key}:${_}${key}`);
            namedExportCode += `export ${declarationType} ${key}${_}=${_}${serialize(value, options.compact ? null : t, '')};${n}`;
        }
        else {
            defaultExportRows.push(`${stringify(key)}:${_}${serialize(value, options.compact ? null : t, '')}`);
        }
    }
    return `${namedExportCode}export default${_}{${n}${t}${defaultExportRows.join(`,${n}${t}`)}${n}};${n}`;
};

const cssLangs = `\\.(css|less|sass|scss|styl|stylus|pcss|postcss)($|\\?)`;
const cssLangRE = new RegExp(cssLangs);
const cssModuleRE = new RegExp(`\\.module${cssLangs}`);
const directRequestRE = /(\?|&)direct\b/;
const commonjsProxyRE = /\?commonjs-proxy/;
const inlineRE = /(\?|&)inline\b/;
const usedRE = /(\?|&)used\b/;
const isCSSRequest = (request) => cssLangRE.test(request);
const isDirectCSSRequest = (request) => cssLangRE.test(request) && directRequestRE.test(request);
const isDirectRequest = (request) => directRequestRE.test(request);
const cssModulesCache = new WeakMap();
const chunkToEmittedCssFileMap = new WeakMap();
const removedPureCssFilesCache = new WeakMap();
const postcssConfigCache = new WeakMap();
/**
 * Plugin applied before user plugins
 */
function cssPlugin(config) {
    let server;
    let moduleCache;
    const resolveUrl = config.createResolver({
        preferRelative: true,
        tryIndex: false,
        extensions: []
    });
    const atImportResolvers = createCSSResolvers(config);
    return {
        name: 'vite:css',
        configureServer(_server) {
            server = _server;
        },
        buildStart() {
            // Ensure a new cache for every build (i.e. rebuilding in watch mode)
            moduleCache = new Map();
            cssModulesCache.set(config, moduleCache);
            removedPureCssFilesCache.set(config, new Map());
        },
        async transform(raw, id) {
            if (!isCSSRequest(id) || commonjsProxyRE.test(id)) {
                return;
            }
            const urlReplacer = async (url, importer) => {
                if (checkPublicFile(url, config)) {
                    return config.base + url.slice(1);
                }
                const resolved = await resolveUrl(url, importer);
                if (resolved) {
                    return fileToUrl(resolved, config, this);
                }
                return url;
            };
            const { code: css, modules, deps } = await compileCSS(id, raw, config, urlReplacer, atImportResolvers, server);
            if (modules) {
                moduleCache.set(id, modules);
            }
            // track deps for build watch mode
            if (config.command === 'build' && config.build.watch && deps) {
                for (const file of deps) {
                    this.addWatchFile(file);
                }
            }
            // dev
            if (server) {
                // server only logic for handling CSS @import dependency hmr
                const { moduleGraph } = server;
                const thisModule = moduleGraph.getModuleById(id);
                if (thisModule) {
                    // CSS modules cannot self-accept since it exports values
                    const isSelfAccepting = !modules && !inlineRE.test(id);
                    if (deps) {
                        // record deps in the module graph so edits to @import css can trigger
                        // main import to hot update
                        const depModules = new Set();
                        for (const file of deps) {
                            depModules.add(isCSSRequest(file)
                                ? moduleGraph.createFileOnlyEntry(file)
                                : await moduleGraph.ensureEntryFromUrl((await fileToUrl(file, config, this)).replace(config.base, '/')));
                        }
                        moduleGraph.updateModuleInfo(thisModule, depModules, 
                        // The root CSS proxy module is self-accepting and should not
                        // have an explicit accept list
                        new Set(), isSelfAccepting);
                        for (const file of deps) {
                            this.addWatchFile(file);
                        }
                    }
                    else {
                        thisModule.isSelfAccepting = isSelfAccepting;
                    }
                }
            }
            return {
                code: css,
                // TODO CSS source map
                map: { mappings: '' }
            };
        }
    };
}
/**
 * Plugin applied after user plugins
 */
function cssPostPlugin(config) {
    // styles initialization in buildStart causes a styling loss in watch
    const styles = new Map();
    let pureCssChunks;
    // when there are multiple rollup outputs and extracting CSS, only emit once,
    // since output formats have no effect on the generated CSS.
    let outputToExtractedCSSMap;
    let hasEmitted = false;
    return {
        name: 'vite:css-post',
        buildStart() {
            // Ensure new caches for every build (i.e. rebuilding in watch mode)
            pureCssChunks = new Set();
            outputToExtractedCSSMap = new Map();
            hasEmitted = false;
        },
        async transform(css, id, ssr) {
            if (!isCSSRequest(id) || commonjsProxyRE.test(id)) {
                return;
            }
            const inlined = inlineRE.test(id);
            const modules = cssModulesCache.get(config).get(id);
            const modulesCode = modules && dataToEsm(modules, { namedExports: true, preferConst: true });
            if (config.command === 'serve') {
                if (isDirectCSSRequest(id)) {
                    return css;
                }
                else {
                    // server only
                    if (ssr) {
                        return modulesCode || `export default ${JSON.stringify(css)}`;
                    }
                    if (inlined) {
                        return `export default ${JSON.stringify(css)}`;
                    }
                    return [
                        `import { updateStyle, removeStyle } from ${JSON.stringify(path__default.posix.join(config.base, CLIENT_PUBLIC_PATH))}`,
                        `const id = ${JSON.stringify(id)}`,
                        `const css = ${JSON.stringify(css)}`,
                        `updateStyle(id, css)`,
                        // css modules exports change on edit so it can't self accept
                        `${modulesCode || `import.meta.hot.accept()\nexport default css`}`,
                        `import.meta.hot.prune(() => removeStyle(id))`
                    ].join('\n');
                }
            }
            // build CSS handling ----------------------------------------------------
            // record css
            if (!inlined) {
                styles.set(id, css);
            }
            return {
                code: modulesCode ||
                    (usedRE.test(id)
                        ? `export default ${JSON.stringify(inlined ? await minifyCSS(css, config) : css)}`
                        : `export default ''`),
                map: { mappings: '' },
                // avoid the css module from being tree-shaken so that we can retrieve
                // it in renderChunk()
                moduleSideEffects: inlined ? false : 'no-treeshake'
            };
        },
        async renderChunk(code, chunk, opts) {
            let chunkCSS = '';
            let isPureCssChunk = true;
            const ids = Object.keys(chunk.modules);
            for (const id of ids) {
                if (!isCSSRequest(id) ||
                    cssModuleRE.test(id) ||
                    commonjsProxyRE.test(id)) {
                    isPureCssChunk = false;
                }
                if (styles.has(id)) {
                    chunkCSS += styles.get(id);
                }
            }
            if (!chunkCSS) {
                return null;
            }
            // resolve asset URL placeholders to their built file URLs and perform
            // minification if necessary
            const processChunkCSS = async (css, { inlined, minify }) => {
                // replace asset url references with resolved url.
                const isRelativeBase = config.base === '' || config.base.startsWith('.');
                css = css.replace(assetUrlRE, (_, fileHash, postfix = '') => {
                    const filename = getAssetFilename(fileHash, config) + postfix;
                    registerAssetToChunk(chunk, filename);
                    if (!isRelativeBase || inlined) {
                        // absolute base or relative base but inlined (injected as style tag into
                        // index.html) use the base as-is
                        return config.base + filename;
                    }
                    else {
                        // relative base + extracted CSS - asset file will be in the same dir
                        return `./${path__default.posix.basename(filename)}`;
                    }
                });
                // only external @imports should exist at this point - and they need to
                // be hoisted to the top of the CSS chunk per spec (#1845)
                if (css.includes('@import')) {
                    css = await hoistAtImports(css);
                }
                if (minify && config.build.minify) {
                    css = await minifyCSS(css, config);
                }
                return css;
            };
            if (config.build.cssCodeSplit) {
                if (isPureCssChunk) {
                    // this is a shared CSS-only chunk that is empty.
                    pureCssChunks.add(chunk.fileName);
                }
                if (opts.format === 'es' || opts.format === 'cjs') {
                    chunkCSS = await processChunkCSS(chunkCSS, {
                        inlined: false,
                        minify: true
                    });
                    // emit corresponding css file
                    const fileHandle = this.emitFile({
                        name: chunk.name + '.css',
                        type: 'asset',
                        source: chunkCSS
                    });
                    chunkToEmittedCssFileMap.set(chunk, new Set([this.getFileName(fileHandle)]));
                }
                else if (!config.build.ssr) {
                    // legacy build, inline css
                    chunkCSS = await processChunkCSS(chunkCSS, {
                        inlined: true,
                        minify: true
                    });
                    const style = `__vite_style__`;
                    const injectCode = `var ${style} = document.createElement('style');` +
                        `${style}.innerHTML = ${JSON.stringify(chunkCSS)};` +
                        `document.head.appendChild(${style});`;
                    if (config.build.sourcemap) {
                        const s = new MagicString(code);
                        s.prepend(injectCode);
                        return {
                            code: s.toString(),
                            map: s.generateMap({ hires: true })
                        };
                    }
                    else {
                        return { code: injectCode + code };
                    }
                }
            }
            else {
                // non-split extracted CSS will be minified together
                chunkCSS = await processChunkCSS(chunkCSS, {
                    inlined: false,
                    minify: false
                });
                outputToExtractedCSSMap.set(opts, (outputToExtractedCSSMap.get(opts) || '') + chunkCSS);
            }
            return null;
        },
        async generateBundle(opts, bundle) {
            // remove empty css chunks and their imports
            if (pureCssChunks.size) {
                const emptyChunkFiles = [...pureCssChunks]
                    .map((file) => path__default.basename(file))
                    .join('|')
                    .replace(/\./g, '\\.');
                const emptyChunkRE = new RegExp(opts.format === 'es'
                    ? `\\bimport\\s*"[^"]*(?:${emptyChunkFiles})";\n?`
                    : `\\brequire\\(\\s*"[^"]*(?:${emptyChunkFiles})"\\);\n?`, 'g');
                for (const file in bundle) {
                    const chunk = bundle[file];
                    if (chunk.type === 'chunk') {
                        // remove pure css chunk from other chunk's imports,
                        // and also register the emitted CSS files under the importer
                        // chunks instead.
                        chunk.imports = chunk.imports.filter((file) => {
                            if (pureCssChunks.has(file)) {
                                const css = chunkToEmittedCssFileMap.get(bundle[file]);
                                if (css) {
                                    let existing = chunkToEmittedCssFileMap.get(chunk);
                                    if (!existing) {
                                        existing = new Set();
                                    }
                                    css.forEach((file) => existing.add(file));
                                    chunkToEmittedCssFileMap.set(chunk, existing);
                                }
                                return false;
                            }
                            return true;
                        });
                        chunk.code = chunk.code.replace(emptyChunkRE, 
                        // remove css import while preserving source map location
                        (m) => `/* empty css ${''.padEnd(m.length - 15)}*/`);
                    }
                }
                const removedPureCssFiles = removedPureCssFilesCache.get(config);
                pureCssChunks.forEach((fileName) => {
                    removedPureCssFiles.set(fileName, bundle[fileName]);
                    delete bundle[fileName];
                });
            }
            let extractedCss = outputToExtractedCSSMap.get(opts);
            if (extractedCss && !hasEmitted) {
                hasEmitted = true;
                // minify css
                if (config.build.minify) {
                    extractedCss = await minifyCSS(extractedCss, config);
                }
                this.emitFile({
                    name: 'style.css',
                    type: 'asset',
                    source: extractedCss
                });
            }
        }
    };
}
function createCSSResolvers(config) {
    let cssResolve;
    let sassResolve;
    let lessResolve;
    return {
        get css() {
            return (cssResolve ||
                (cssResolve = config.createResolver({
                    extensions: ['.css'],
                    mainFields: ['style'],
                    tryIndex: false,
                    preferRelative: true
                })));
        },
        get sass() {
            return (sassResolve ||
                (sassResolve = config.createResolver({
                    extensions: ['.scss', '.sass', '.css'],
                    mainFields: ['sass', 'style'],
                    tryIndex: true,
                    tryPrefix: '_',
                    preferRelative: true
                })));
        },
        get less() {
            return (lessResolve ||
                (lessResolve = config.createResolver({
                    extensions: ['.less', '.css'],
                    mainFields: ['less', 'style'],
                    tryIndex: false,
                    preferRelative: true
                })));
        }
    };
}
function getCssResolversKeys(resolvers) {
    return Object.keys(resolvers);
}
async function compileCSS(id, code, config, urlReplacer, atImportResolvers, server) {
    var _a;
    const { modules: modulesOptions, preprocessorOptions } = config.css || {};
    const isModule = modulesOptions !== false && cssModuleRE.test(id);
    // although at serve time it can work without processing, we do need to
    // crawl them in order to register watch dependencies.
    const needInlineImport = code.includes('@import');
    const hasUrl = cssUrlRE.test(code) || cssImageSetRE.test(code);
    const postcssConfig = await resolvePostcssConfig(config);
    const lang = (_a = id.match(cssLangRE)) === null || _a === void 0 ? void 0 : _a[1];
    // 1. plain css that needs no processing
    if (lang === 'css' &&
        !postcssConfig &&
        !isModule &&
        !needInlineImport &&
        !hasUrl) {
        return { code };
    }
    let map;
    let modules;
    const deps = new Set();
    // 2. pre-processors: sass etc.
    if (isPreProcessor(lang)) {
        const preProcessor = preProcessors[lang];
        let opts = (preprocessorOptions && preprocessorOptions[lang]) || {};
        // support @import from node dependencies by default
        switch (lang) {
            case "scss" /* scss */:
            case "sass" /* sass */:
                opts = {
                    includePaths: ['node_modules'],
                    alias: config.resolve.alias,
                    ...opts
                };
                break;
            case "less" /* less */:
            case "styl" /* styl */:
            case "stylus" /* stylus */:
                opts = {
                    paths: ['node_modules'],
                    alias: config.resolve.alias,
                    ...opts
                };
        }
        // important: set this for relative import resolving
        opts.filename = cleanUrl(id);
        const preprocessResult = await preProcessor(code, config.root, opts, atImportResolvers);
        if (preprocessResult.errors.length) {
            throw preprocessResult.errors[0];
        }
        code = preprocessResult.code;
        map = preprocessResult.map;
        if (preprocessResult.deps) {
            preprocessResult.deps.forEach((dep) => {
                // sometimes sass registers the file itself as a dep
                if (normalizePath$4(dep) !== normalizePath$4(opts.filename)) {
                    deps.add(dep);
                }
            });
        }
    }
    // 3. postcss
    const postcssOptions = (postcssConfig && postcssConfig.options) || {};
    const postcssPlugins = postcssConfig && postcssConfig.plugins ? postcssConfig.plugins.slice() : [];
    if (needInlineImport) {
        postcssPlugins.unshift((await Promise.resolve().then(function () { return require('./dep-e39b05d6.js'); }).then(function (n) { return n.index; })).default({
            async resolve(id, basedir) {
                const resolved = await atImportResolvers.css(id, path__default.join(basedir, '*'));
                if (resolved) {
                    return path__default.resolve(resolved);
                }
                return id;
            }
        }));
    }
    postcssPlugins.push(UrlRewritePostcssPlugin({
        replacer: urlReplacer
    }));
    if (isModule) {
        postcssPlugins.unshift((await Promise.resolve().then(function () { return require('./dep-c98c5b6d.js'); }).then(function (n) { return n.index; })).default({
            ...modulesOptions,
            getJSON(cssFileName, _modules, outputFileName) {
                modules = _modules;
                if (modulesOptions && typeof modulesOptions.getJSON === 'function') {
                    modulesOptions.getJSON(cssFileName, _modules, outputFileName);
                }
            },
            async resolve(id) {
                for (const key of getCssResolversKeys(atImportResolvers)) {
                    const resolved = await atImportResolvers[key](id);
                    if (resolved) {
                        return path__default.resolve(resolved);
                    }
                }
                return id;
            }
        }));
    }
    if (!postcssPlugins.length) {
        return {
            code,
            map
        };
    }
    // postcss is an unbundled dep and should be lazy imported
    const postcssResult = await (await Promise.resolve().then(function () { return /*#__PURE__*/_interopNamespace(require('postcss')); }))
        .default(postcssPlugins)
        .process(code, {
        ...postcssOptions,
        to: id,
        from: id,
        map: {
            inline: false,
            annotation: false,
            prev: map
        }
    });
    // record CSS dependencies from @imports
    for (const message of postcssResult.messages) {
        if (message.type === 'dependency') {
            deps.add(message.file);
        }
        else if (message.type === 'dir-dependency') {
            // https://github.com/postcss/postcss/blob/main/docs/guidelines/plugin.md#3-dependencies
            const { dir, glob: globPattern = '**' } = message;
            const pattern = normalizePath$4(path__default.resolve(path__default.dirname(id), dir)) + `/` + globPattern;
            const files = out.sync(pattern, {
                ignore: ['**/node_modules/**']
            });
            for (let i = 0; i < files.length; i++) {
                deps.add(files[i]);
            }
            if (server) {
                // register glob importers so we can trigger updates on file add/remove
                if (!(id in server._globImporters)) {
                    server._globImporters[id] = {
                        module: server.moduleGraph.getModuleById(id),
                        importGlobs: []
                    };
                }
                server._globImporters[id].importGlobs.push({
                    base: config.root,
                    pattern
                });
            }
        }
        else if (message.type === 'warning') {
            let msg = `[vite:css] ${message.text}`;
            if (message.line && message.column) {
                msg += `\n${generateCodeFrame(code, {
                    line: message.line,
                    column: message.column
                })}`;
            }
            config.logger.warn(source.yellow(msg));
        }
    }
    return {
        ast: postcssResult,
        code: postcssResult.css,
        map: postcssResult.map,
        modules,
        deps
    };
}
async function resolvePostcssConfig(config) {
    var _a;
    let result = postcssConfigCache.get(config);
    if (result !== undefined) {
        return result;
    }
    // inline postcss config via vite config
    const inlineOptions = (_a = config.css) === null || _a === void 0 ? void 0 : _a.postcss;
    if (isObject$3(inlineOptions)) {
        const options = { ...inlineOptions };
        delete options.plugins;
        result = {
            options,
            plugins: inlineOptions.plugins || []
        };
    }
    else {
        try {
            const searchPath = typeof inlineOptions === 'string' ? inlineOptions : config.root;
            // @ts-ignore
            result = await src$1({}, searchPath);
        }
        catch (e) {
            if (!/No PostCSS Config found/.test(e.message)) {
                throw e;
            }
            result = null;
        }
    }
    postcssConfigCache.set(config, result);
    return result;
}
// https://drafts.csswg.org/css-syntax-3/#identifier-code-point
const cssUrlRE = /(?<=^|[^\w\-\u0080-\uffff])url\(\s*('[^']+'|"[^"]+"|[^'")]+)\s*\)/;
const cssImageSetRE = /image-set\(([^)]+)\)/;
const UrlRewritePostcssPlugin = (opts) => {
    if (!opts) {
        throw new Error('base or replace is required');
    }
    return {
        postcssPlugin: 'vite-url-rewrite',
        Once(root) {
            const promises = [];
            root.walkDecls((declaration) => {
                const isCssUrl = cssUrlRE.test(declaration.value);
                const isCssImageSet = cssImageSetRE.test(declaration.value);
                if (isCssUrl || isCssImageSet) {
                    const replacerForDeclaration = (rawUrl) => {
                        var _a;
                        const importer = (_a = declaration.source) === null || _a === void 0 ? void 0 : _a.input.file;
                        return opts.replacer(rawUrl, importer);
                    };
                    const rewriterToUse = isCssUrl ? rewriteCssUrls : rewriteCssImageSet;
                    promises.push(rewriterToUse(declaration.value, replacerForDeclaration).then((url) => {
                        declaration.value = url;
                    }));
                }
            });
            if (promises.length) {
                return Promise.all(promises);
            }
        }
    };
};
UrlRewritePostcssPlugin.postcss = true;
function rewriteCssUrls(css, replacer) {
    return asyncReplace(css, cssUrlRE, async (match) => {
        const [matched, rawUrl] = match;
        return await doUrlReplace(rawUrl, matched, replacer);
    });
}
function rewriteCssImageSet(css, replacer) {
    return asyncReplace(css, cssImageSetRE, async (match) => {
        const [matched, rawUrl] = match;
        const url = await processSrcSet(rawUrl, ({ url }) => doUrlReplace(url, matched, replacer));
        return `image-set(${url})`;
    });
}
async function doUrlReplace(rawUrl, matched, replacer) {
    let wrap = '';
    const first = rawUrl[0];
    if (first === `"` || first === `'`) {
        wrap = first;
        rawUrl = rawUrl.slice(1, -1);
    }
    if (isExternalUrl(rawUrl) || isDataUrl(rawUrl) || rawUrl.startsWith('#')) {
        return matched;
    }
    return `url(${wrap}${await replacer(rawUrl)}${wrap})`;
}
async function minifyCSS(css, config) {
    const { code, warnings } = await esbuild.transform(css, {
        loader: 'css',
        minify: true,
        target: config.build.cssTarget || undefined
    });
    if (warnings.length) {
        const msgs = await esbuild.formatMessages(warnings, { kind: 'warning' });
        config.logger.warn(source.yellow(`warnings when minifying css:\n${msgs.join('\n')}`));
    }
    return code;
}
// #1845
// CSS @import can only appear at top of the file. We need to hoist all @import
// to top when multiple files are concatenated.
async function hoistAtImports(css) {
    const postcss = await Promise.resolve().then(function () { return /*#__PURE__*/_interopNamespace(require('postcss')); });
    return (await postcss.default([AtImportHoistPlugin]).process(css)).css;
}
const AtImportHoistPlugin = () => {
    return {
        postcssPlugin: 'vite-hoist-at-imports',
        Once(root) {
            const imports = [];
            root.walkAtRules((rule) => {
                if (rule.name === 'import') {
                    // record in reverse so that can simply prepend to preserve order
                    imports.unshift(rule);
                }
            });
            imports.forEach((i) => root.prepend(i));
        }
    };
};
AtImportHoistPlugin.postcss = true;
const loadedPreprocessors = {};
function loadPreprocessor(lang, root) {
    var _a, _b;
    if (lang in loadedPreprocessors) {
        return loadedPreprocessors[lang];
    }
    try {
        // Search for the preprocessor in the root directory first, and fall back
        // to the default require paths.
        const fallbackPaths = ((_b = (_a = require.resolve).paths) === null || _b === void 0 ? void 0 : _b.call(_a, lang)) || [];
        const resolved = require.resolve(lang, { paths: [root, ...fallbackPaths] });
        return (loadedPreprocessors[lang] = require(resolved));
    }
    catch (e) {
        throw new Error(`Preprocessor dependency "${lang}" not found. Did you install it?`);
    }
}
// .scss/.sass processor
const scss = async (source, root, options, resolvers) => {
    const render = loadPreprocessor("sass" /* sass */, root).render;
    const internalImporter = (url, importer, done) => {
        resolvers.sass(url, importer).then((resolved) => {
            if (resolved) {
                rebaseUrls(resolved, options.filename, options.alias)
                    .then(done)
                    .catch(done);
            }
            else {
                done(null);
            }
        });
    };
    const importer = [internalImporter];
    if (options.importer) {
        Array.isArray(options.importer)
            ? importer.push(...options.importer)
            : importer.push(options.importer);
    }
    const finalOptions = {
        ...options,
        data: await getSource(source, options.filename, options.additionalData),
        file: options.filename,
        outFile: options.filename,
        importer
    };
    try {
        const result = await new Promise((resolve, reject) => {
            render(finalOptions, (err, res) => {
                if (err) {
                    reject(err);
                }
                else {
                    resolve(res);
                }
            });
        });
        const deps = result.stats.includedFiles;
        return {
            code: result.css.toString(),
            errors: [],
            deps
        };
    }
    catch (e) {
        // normalize SASS error
        e.id = e.file;
        e.frame = e.formatted;
        return { code: '', errors: [e], deps: [] };
    }
};
const sass = (source, root, options, aliasResolver) => scss(source, root, {
    ...options,
    indentedSyntax: true
}, aliasResolver);
/**
 * relative url() inside \@imported sass and less files must be rebased to use
 * root file as base.
 */
async function rebaseUrls(file, rootFile, alias) {
    file = path__default.resolve(file); // ensure os-specific flashes
    // in the same dir, no need to rebase
    const fileDir = path__default.dirname(file);
    const rootDir = path__default.dirname(rootFile);
    if (fileDir === rootDir) {
        return { file };
    }
    // no url()
    const content = fs__default.readFileSync(file, 'utf-8');
    if (!cssUrlRE.test(content)) {
        return { file };
    }
    const rebased = await rewriteCssUrls(content, (url) => {
        if (url.startsWith('/'))
            return url;
        // match alias, no need to rewrite
        for (const { find } of alias) {
            const matches = typeof find === 'string' ? url.startsWith(find) : find.test(url);
            if (matches) {
                return url;
            }
        }
        const absolute = path__default.resolve(fileDir, url);
        const relative = path__default.relative(rootDir, absolute);
        return normalizePath$4(relative);
    });
    return {
        file,
        contents: rebased
    };
}
// .less
const less = async (source, root, options, resolvers) => {
    const nodeLess = loadPreprocessor("less" /* less */, root);
    const viteResolverPlugin = createViteLessPlugin(nodeLess, options.filename, options.alias, resolvers);
    source = await getSource(source, options.filename, options.additionalData);
    let result;
    try {
        result = await nodeLess.render(source, {
            ...options,
            plugins: [viteResolverPlugin, ...(options.plugins || [])]
        });
    }
    catch (e) {
        const error = e;
        // normalize error info
        const normalizedError = new Error(error.message || error.type);
        normalizedError.loc = {
            file: error.filename || options.filename,
            line: error.line,
            column: error.column
        };
        return { code: '', errors: [normalizedError], deps: [] };
    }
    return {
        code: result.css.toString(),
        deps: result.imports,
        errors: []
    };
};
/**
 * Less manager, lazy initialized
 */
let ViteLessManager;
function createViteLessPlugin(less, rootFile, alias, resolvers) {
    if (!ViteLessManager) {
        ViteLessManager = class ViteManager extends less.FileManager {
            constructor(rootFile, resolvers, alias) {
                super();
                this.rootFile = rootFile;
                this.resolvers = resolvers;
                this.alias = alias;
            }
            supports() {
                return true;
            }
            supportsSync() {
                return false;
            }
            async loadFile(filename, dir, opts, env) {
                const resolved = await this.resolvers.less(filename, path__default.join(dir, '*'));
                if (resolved) {
                    const result = await rebaseUrls(resolved, this.rootFile, this.alias);
                    let contents;
                    if (result && 'contents' in result) {
                        contents = result.contents;
                    }
                    else {
                        contents = fs__default.readFileSync(resolved, 'utf-8');
                    }
                    return {
                        filename: path__default.resolve(resolved),
                        contents
                    };
                }
                else {
                    return super.loadFile(filename, dir, opts, env);
                }
            }
        };
    }
    return {
        install(_, pluginManager) {
            pluginManager.addFileManager(new ViteLessManager(rootFile, resolvers, alias));
        },
        minVersion: [3, 0, 0]
    };
}
// .styl
const styl = async (source, root, options) => {
    var _a;
    const nodeStylus = loadPreprocessor("stylus" /* stylus */, root);
    // Get source with preprocessor options.additionalData. Make sure a new line separator
    // is added to avoid any render error, as added stylus content may not have semi-colon separators
    source = await getSource(source, options.filename, options.additionalData, '\n');
    // Get preprocessor options.imports dependencies as stylus
    // does not return them with its builtin `.deps()` method
    const importsDeps = ((_a = options.imports) !== null && _a !== void 0 ? _a : []).map((dep) => path__default.resolve(dep));
    try {
        const ref = nodeStylus(source, options);
        // if (map) ref.set('sourcemap', { inline: false, comment: false })
        const result = ref.render();
        // Concat imports deps with computed deps
        const deps = [...ref.deps(), ...importsDeps];
        return { code: result, errors: [], deps };
    }
    catch (e) {
        return { code: '', errors: [e], deps: [] };
    }
};
function getSource(source, filename, additionalData, sep = '') {
    if (!additionalData)
        return source;
    if (typeof additionalData === 'function') {
        return additionalData(source, filename);
    }
    return additionalData + sep + source;
}
const preProcessors = Object.freeze({
    ["less" /* less */]: less,
    ["sass" /* sass */]: sass,
    ["scss" /* scss */]: scss,
    ["styl" /* styl */]: styl,
    ["stylus" /* stylus */]: styl
});
function isPreProcessor(lang) {
    return lang && lang in preProcessors;
}

/* es-module-lexer 0.9.2 */
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","undefined"!=typeof Buffer?Buffer.from(E,"base64"):Uint8Array.from(atob(E),A=>A.charCodeAt(0)))).then(WebAssembly.instantiate).then(({exports:A})=>{B=A;});var E;

async function transformImportGlob(source, pos, importer, importIndex, root, normalizeUrl, preload = true) {
    const isEager = source.slice(pos, pos + 21) === 'import.meta.globEager';
    const isEagerDefault = isEager && source.slice(pos + 21, pos + 28) === 'Default';
    const err = (msg) => {
        const e = new Error(`Invalid glob import syntax: ${msg}`);
        e.pos = pos;
        return e;
    };
    importer = cleanUrl(importer);
    const importerBasename = path__default.basename(importer);
    let [pattern, endIndex] = lexGlobPattern(source, pos);
    if (!pattern.startsWith('.') && !pattern.startsWith('/')) {
        throw err(`pattern must start with "." or "/" (relative to project root)`);
    }
    let base;
    let parentDepth = 0;
    const isAbsolute = pattern.startsWith('/');
    if (isAbsolute) {
        base = path__default.resolve(root);
        pattern = pattern.slice(1);
    }
    else {
        base = path__default.dirname(importer);
        while (pattern.startsWith('../')) {
            pattern = pattern.slice(3);
            base = path__default.resolve(base, '../');
            parentDepth++;
        }
        if (pattern.startsWith('./')) {
            pattern = pattern.slice(2);
        }
    }
    const files = out.sync(pattern, {
        cwd: base,
        ignore: ['**/node_modules/**']
    });
    const imports = [];
    let importsString = ``;
    let entries = ``;
    for (let i = 0; i < files.length; i++) {
        // skip importer itself
        if (files[i] === importerBasename)
            continue;
        const file = isAbsolute
            ? `/${files[i]}`
            : parentDepth
                ? `${'../'.repeat(parentDepth)}${files[i]}`
                : `./${files[i]}`;
        let importee = file;
        if (normalizeUrl) {
            [importee] = await normalizeUrl(file, pos);
        }
        imports.push(importee);
        const identifier = `__glob_${importIndex}_${i}`;
        if (isEager) {
            importsString += `import ${isEagerDefault ? `` : `* as `}${identifier} from ${JSON.stringify(importee)};`;
            entries += ` ${JSON.stringify(file)}: ${identifier},`;
        }
        else {
            let imp = `import(${JSON.stringify(importee)})`;
            if (!normalizeUrl && preload) {
                imp =
                    `(${isModernFlag}` +
                        `? ${preloadMethod}(()=>${imp},"${preloadMarker}")` +
                        `: ${imp})`;
            }
            entries += ` ${JSON.stringify(file)}: () => ${imp},`;
        }
    }
    return {
        imports,
        importsString,
        exp: `{${entries}}`,
        endIndex,
        isEager,
        pattern,
        base
    };
}
function lexGlobPattern(code, pos) {
    let state = 0 /* inCall */;
    let pattern = '';
    let i = code.indexOf(`(`, pos) + 1;
    outer: for (; i < code.length; i++) {
        const char = code.charAt(i);
        switch (state) {
            case 0 /* inCall */:
                if (char === `'`) {
                    state = 1 /* inSingleQuoteString */;
                }
                else if (char === `"`) {
                    state = 2 /* inDoubleQuoteString */;
                }
                else if (char === '`') {
                    state = 3 /* inTemplateString */;
                }
                else if (/\s/.test(char)) {
                    continue;
                }
                else {
                    error$3(i);
                }
                break;
            case 1 /* inSingleQuoteString */:
                if (char === `'`) {
                    break outer;
                }
                else {
                    pattern += char;
                }
                break;
            case 2 /* inDoubleQuoteString */:
                if (char === `"`) {
                    break outer;
                }
                else {
                    pattern += char;
                }
                break;
            case 3 /* inTemplateString */:
                if (char === '`') {
                    break outer;
                }
                else {
                    pattern += char;
                }
                break;
            default:
                throw new Error('unknown import.meta.glob lexer state');
        }
    }
    return [pattern, code.indexOf(`)`, i) + 1];
}
function error$3(pos) {
    const err = new Error(`import.meta.glob() can only accept string literals.`);
    err.pos = pos;
    throw err;
}

/**
 * A flag for injected helpers. This flag will be set to `false` if the output
 * target is not native es - so that injected helper logic can be conditionally
 * dropped.
 */
const isModernFlag = `__VITE_IS_MODERN__`;
const preloadMethod = `__vitePreload`;
const preloadMarker = `__VITE_PRELOAD__`;
const preloadBaseMarker = `__VITE_PRELOAD_BASE__`;
const preloadHelperId = 'vite/preload-helper';
const preloadMarkerRE = new RegExp(`"${preloadMarker}"`, 'g');
/**
 * Helper for preloading CSS and direct imports of async chunks in parallel to
 * the async chunk itself.
 */
function detectScriptRel() {
    // @ts-ignore
    const relList = document.createElement('link').relList;
    // @ts-ignore
    return relList && relList.supports && relList.supports('modulepreload')
        ? 'modulepreload'
        : 'preload';
}
function preload(baseModule, deps) {
    // @ts-ignore
    if (!__VITE_IS_MODERN__ || !deps || deps.length === 0) {
        return baseModule();
    }
    return Promise.all(deps.map((dep) => {
        // @ts-ignore
        dep = `${base}${dep}`;
        // @ts-ignore
        if (dep in seen)
            return;
        // @ts-ignore
        seen[dep] = true;
        const isCss = dep.endsWith('.css');
        const cssSelector = isCss ? '[rel="stylesheet"]' : '';
        // @ts-ignore check if the file is already preloaded by SSR markup
        if (document.querySelector(`link[href="${dep}"]${cssSelector}`)) {
            return;
        }
        // @ts-ignore
        const link = document.createElement('link');
        // @ts-ignore
        link.rel = isCss ? 'stylesheet' : scriptRel;
        if (!isCss) {
            link.as = 'script';
            link.crossOrigin = '';
        }
        link.href = dep;
        // @ts-ignore
        document.head.appendChild(link);
        if (isCss) {
            return new Promise((res, rej) => {
                link.addEventListener('load', res);
                link.addEventListener('error', rej);
            });
        }
    })).then(() => baseModule());
}
/**
 * Build only. During serve this is performed as part of ./importAnalysis.
 */
function buildImportAnalysisPlugin(config) {
    const ssr = !!config.build.ssr;
    const insertPreload = !(ssr || !!config.build.lib);
    const scriptRel = config.build.polyfillModulePreload
        ? `'modulepreload'`
        : `(${detectScriptRel.toString()})()`;
    const preloadCode = `const scriptRel = ${scriptRel};const seen = {};const base = '${preloadBaseMarker}';export const ${preloadMethod} = ${preload.toString()}`;
    return {
        name: 'vite:build-import-analysis',
        resolveId(id) {
            if (id === preloadHelperId) {
                return id;
            }
        },
        load(id) {
            if (id === preloadHelperId) {
                return preloadCode.replace(preloadBaseMarker, config.base);
            }
        },
        async transform(source, importer) {
            if (importer.includes('node_modules') &&
                !source.includes('import.meta.glob')) {
                return;
            }
            await init;
            let imports = [];
            try {
                imports = parse$f(source)[0];
            }
            catch (e) {
                this.error(e, e.idx);
            }
            if (!imports.length) {
                return null;
            }
            let s;
            const str = () => s || (s = new MagicString(source));
            let needPreloadHelper = false;
            for (let index = 0; index < imports.length; index++) {
                const { s: start, e: end, ss: expStart, n: specifier, d: dynamicIndex } = imports[index];
                // import.meta.glob
                if (source.slice(start, end) === 'import.meta' &&
                    source.slice(end, end + 5) === '.glob') {
                    const { importsString, exp, endIndex, isEager } = await transformImportGlob(source, start, importer, index, config.root, undefined, insertPreload);
                    str().prepend(importsString);
                    str().overwrite(expStart, endIndex, exp);
                    if (!isEager) {
                        needPreloadHelper = true;
                    }
                    continue;
                }
                if (dynamicIndex > -1 && insertPreload) {
                    needPreloadHelper = true;
                    const dynamicEnd = source.indexOf(`)`, end) + 1;
                    const original = source.slice(dynamicIndex, dynamicEnd);
                    const replacement = `${preloadMethod}(() => ${original},${isModernFlag}?"${preloadMarker}":void 0)`;
                    str().overwrite(dynamicIndex, dynamicEnd, replacement);
                }
                // Differentiate CSS imports that use the default export from those that
                // do not by injecting a ?used query - this allows us to avoid including
                // the CSS string when unnecessary (esbuild has trouble treeshaking
                // them)
                if (specifier &&
                    isCSSRequest(specifier) &&
                    source.slice(expStart, start).includes('from') &&
                    // edge case for package names ending with .css (e.g normalize.css)
                    !(bareImportRE.test(specifier) && !specifier.includes('/'))) {
                    const url = specifier.replace(/\?|$/, (m) => `?used${m ? '&' : ''}`);
                    str().overwrite(start, end, dynamicIndex > -1 ? `'${url}'` : url);
                }
            }
            if (needPreloadHelper &&
                insertPreload &&
                !source.includes(`const ${preloadMethod} =`)) {
                str().prepend(`import { ${preloadMethod} } from "${preloadHelperId}";`);
            }
            if (s) {
                return {
                    code: s.toString(),
                    map: config.build.sourcemap ? s.generateMap({ hires: true }) : null
                };
            }
        },
        renderChunk(code, _, { format }) {
            // make sure we only perform the preload logic in modern builds.
            if (code.indexOf(isModernFlag) > -1) {
                const re = new RegExp(isModernFlag, 'g');
                const isModern = String(format === 'es');
                if (config.build.sourcemap) {
                    const s = new MagicString(code);
                    let match;
                    while ((match = re.exec(code))) {
                        s.overwrite(match.index, match.index + isModernFlag.length, isModern);
                    }
                    return {
                        code: s.toString(),
                        map: s.generateMap({ hires: true })
                    };
                }
                else {
                    return code.replace(re, isModern);
                }
            }
            return null;
        },
        generateBundle({ format }, bundle) {
            if (format !== 'es' || ssr) {
                return;
            }
            for (const file in bundle) {
                const chunk = bundle[file];
                // can't use chunk.dynamicImports.length here since some modules e.g.
                // dynamic import to constant json may get inlined.
                if (chunk.type === 'chunk' && chunk.code.indexOf(preloadMarker) > -1) {
                    const code = chunk.code;
                    let imports;
                    try {
                        imports = parse$f(code)[0].filter((i) => i.d > -1);
                    }
                    catch (e) {
                        this.error(e, e.idx);
                    }
                    if (imports.length) {
                        const s = new MagicString(code);
                        for (let index = 0; index < imports.length; index++) {
                            const { s: start, e: end, d: dynamicIndex } = imports[index];
                            // check the chunk being imported
                            const url = code.slice(start, end);
                            const deps = new Set();
                            let hasRemovedPureCssChunk = false;
                            if (url[0] === `"` && url[url.length - 1] === `"`) {
                                const ownerFilename = chunk.fileName;
                                // literal import - trace direct imports and add to deps
                                const analyzed = new Set();
                                const addDeps = (filename) => {
                                    if (filename === ownerFilename)
                                        return;
                                    if (analyzed.has(filename))
                                        return;
                                    analyzed.add(filename);
                                    const chunk = bundle[filename];
                                    if (chunk) {
                                        deps.add(chunk.fileName);
                                        const cssFiles = chunkToEmittedCssFileMap.get(chunk);
                                        if (cssFiles) {
                                            cssFiles.forEach((file) => {
                                                deps.add(file);
                                            });
                                        }
                                        chunk.imports.forEach(addDeps);
                                    }
                                    else {
                                        const removedPureCssFiles = removedPureCssFilesCache.get(config);
                                        const chunk = removedPureCssFiles.get(filename);
                                        if (chunk) {
                                            const cssFiles = chunkToEmittedCssFileMap.get(chunk);
                                            if (cssFiles && cssFiles.size > 0) {
                                                cssFiles.forEach((file) => {
                                                    deps.add(file);
                                                });
                                                hasRemovedPureCssChunk = true;
                                            }
                                            s.overwrite(dynamicIndex, end + 1, 'Promise.resolve({})');
                                        }
                                    }
                                };
                                const normalizedFile = path__default.posix.join(path__default.posix.dirname(chunk.fileName), url.slice(1, -1));
                                addDeps(normalizedFile);
                            }
                            let markPos = code.indexOf(preloadMarker, end);
                            // fix issue #3051
                            if (markPos === -1 && imports.length === 1) {
                                markPos = code.indexOf(preloadMarker);
                            }
                            if (markPos > 0) {
                                s.overwrite(markPos - 1, markPos + preloadMarker.length + 1, 
                                // the dep list includes the main chunk, so only need to
                                // preload when there are actual other deps.
                                deps.size > 1 ||
                                    // main chunk is removed
                                    (hasRemovedPureCssChunk && deps.size > 0)
                                    ? `[${[...deps].map((d) => JSON.stringify(d)).join(',')}]`
                                    : `[]`);
                            }
                        }
                        chunk.code = s.toString();
                        // TODO source map
                    }
                    // there may still be markers due to inlined dynamic imports, remove
                    // all the markers regardless
                    chunk.code = chunk.code.replace(preloadMarkerRE, 'void 0');
                }
            }
        }
    };
}

const modulePreloadPolyfillId = 'vite/modulepreload-polyfill';
function modulePreloadPolyfillPlugin(config) {
    const skip = config.build.ssr;
    let polyfillString;
    return {
        name: 'vite:modulepreload-polyfill',
        resolveId(id) {
            if (id === modulePreloadPolyfillId) {
                return id;
            }
        },
        load(id) {
            if (id === modulePreloadPolyfillId) {
                if (skip) {
                    return '';
                }
                if (!polyfillString) {
                    polyfillString =
                        `const p = ${polyfill.toString()};` + `${isModernFlag}&&p();`;
                }
                return polyfillString;
            }
        }
    };
}
function polyfill() {
    const relList = document.createElement('link').relList;
    if (relList && relList.supports && relList.supports('modulepreload')) {
        return;
    }
    for (const link of document.querySelectorAll('link[rel="modulepreload"]')) {
        processPreload(link);
    }
    new MutationObserver((mutations) => {
        for (const mutation of mutations) {
            if (mutation.type !== 'childList') {
                continue;
            }
            for (const node of mutation.addedNodes) {
                if (node.tagName === 'LINK' && node.rel === 'modulepreload')
                    processPreload(node);
            }
        }
    }).observe(document, { childList: true, subtree: true });
    function getFetchOpts(script) {
        const fetchOpts = {};
        if (script.integrity)
            fetchOpts.integrity = script.integrity;
        if (script.referrerpolicy)
            fetchOpts.referrerPolicy = script.referrerpolicy;
        if (script.crossorigin === 'use-credentials')
            fetchOpts.credentials = 'include';
        else if (script.crossorigin === 'anonymous')
            fetchOpts.credentials = 'omit';
        else
            fetchOpts.credentials = 'same-origin';
        return fetchOpts;
    }
    function processPreload(link) {
        if (link.ep)
            // ep marker = processed
            return;
        link.ep = true;
        // prepopulate the load record
        const fetchOpts = getFetchOpts(link);
        fetch(link.href, fetchOpts);
    }
}

const htmlProxyRE = /\?html-proxy&index=(\d+)\.js$/;
const isHTMLProxy = (id) => htmlProxyRE.test(id);
// HTML Proxy Caches are stored by config -> filePath -> index
const htmlProxyMap = new WeakMap();
function htmlInlineScriptProxyPlugin(config) {
    return {
        name: 'vite:html-inline-script-proxy',
        resolveId(id) {
            if (htmlProxyRE.test(id)) {
                return id;
            }
        },
        buildStart() {
            htmlProxyMap.set(config, new Map());
        },
        load(id) {
            const proxyMatch = id.match(htmlProxyRE);
            if (proxyMatch) {
                const index = Number(proxyMatch[1]);
                const file = cleanUrl(id);
                const url = file.replace(config.root, '');
                const result = htmlProxyMap.get(config).get(url)[index];
                if (result) {
                    return result;
                }
                else {
                    throw new Error(`No matching HTML proxy module found from ${id}`);
                }
            }
        }
    };
}
/** Add script to cache */
function addToHTMLProxyCache(config, filePath, index, code) {
    if (!htmlProxyMap.get(config)) {
        htmlProxyMap.set(config, new Map());
    }
    if (!htmlProxyMap.get(config).get(filePath)) {
        htmlProxyMap.get(config).set(filePath, []);
    }
    htmlProxyMap.get(config).get(filePath)[index] = code;
}
// this extends the config in @vue/compiler-sfc with <link href>
const assetAttrsConfig = {
    link: ['href'],
    video: ['src', 'poster'],
    source: ['src', 'srcset'],
    img: ['src', 'srcset'],
    image: ['xlink:href', 'href'],
    use: ['xlink:href', 'href']
};
const isAsyncScriptMap = new WeakMap();
async function traverseHtml(html, filePath, visitor) {
    // lazy load compiler
    const { parse, transform } = await Promise.resolve().then(function () { return require('./dep-66b16601.js'); }).then(function (n) { return n.compilerDom_cjs; });
    // @vue/compiler-core doesn't like lowercase doctypes
    html = html.replace(/<!doctype\s/i, '<!DOCTYPE ');
    try {
        const ast = parse(html, { comments: true });
        transform(ast, {
            nodeTransforms: [visitor]
        });
    }
    catch (e) {
        const parseError = {
            loc: filePath,
            frame: '',
            ...formatParseError(e, filePath, html)
        };
        throw new Error(`Unable to parse ${JSON.stringify(parseError.loc)}\n${parseError.frame}`);
    }
}
function getScriptInfo(node) {
    let src;
    let isModule = false;
    let isAsync = false;
    for (let i = 0; i < node.props.length; i++) {
        const p = node.props[i];
        if (p.type === 6 /* ATTRIBUTE */) {
            if (p.name === 'src') {
                src = p;
            }
            else if (p.name === 'type' && p.value && p.value.content === 'module') {
                isModule = true;
            }
            else if (p.name === 'async') {
                isAsync = true;
            }
        }
    }
    return { src, isModule, isAsync };
}
function formatParseError(e, id, html) {
    // normalize the error to rollup format
    if (e.loc) {
        e.frame = generateCodeFrame(html, e.loc.start.offset);
        e.loc = {
            file: id,
            line: e.loc.start.line,
            column: e.loc.start.column
        };
    }
    return e;
}
/**
 * Compiles index.html into an entry js module
 */
function buildHtmlPlugin(config) {
    const [preHooks, postHooks] = resolveHtmlTransforms(config.plugins);
    const processedHtml = new Map();
    const isExcludedUrl = (url) => url.startsWith('#') ||
        isExternalUrl(url) ||
        isDataUrl(url) ||
        checkPublicFile(url, config);
    return {
        name: 'vite:build-html',
        buildStart() {
            isAsyncScriptMap.set(config, new Map());
        },
        async transform(html, id) {
            if (id.endsWith('.html')) {
                const publicPath = `/${slash$3(path__default.relative(config.root, id))}`;
                // pre-transform
                html = await applyHtmlTransforms(html, preHooks, {
                    path: publicPath,
                    filename: id
                });
                let js = '';
                const s = new MagicString(html);
                const assetUrls = [];
                let inlineModuleIndex = -1;
                let everyScriptIsAsync = true;
                let someScriptsAreAsync = false;
                let someScriptsAreDefer = false;
                await traverseHtml(html, id, (node) => {
                    if (node.type !== 1 /* ELEMENT */) {
                        return;
                    }
                    let shouldRemove = false;
                    // script tags
                    if (node.tag === 'script') {
                        const { src, isModule, isAsync } = getScriptInfo(node);
                        const url = src && src.value && src.value.content;
                        if (url && checkPublicFile(url, config)) {
                            // referencing public dir url, prefix with base
                            s.overwrite(src.value.loc.start.offset, src.value.loc.end.offset, `"${config.base + url.slice(1)}"`);
                        }
                        if (isModule) {
                            inlineModuleIndex++;
                            if (url && !isExcludedUrl(url)) {
                                // <script type="module" src="..."/>
                                // add it as an import
                                js += `\nimport ${JSON.stringify(url)}`;
                                shouldRemove = true;
                            }
                            else if (node.children.length) {
                                const contents = node.children
                                    .map((child) => child.content || '')
                                    .join('');
                                // <script type="module">...</script>
                                const filePath = id.replace(config.root, '');
                                addToHTMLProxyCache(config, filePath, inlineModuleIndex, contents);
                                js += `\nimport "${id}?html-proxy&index=${inlineModuleIndex}.js"`;
                                shouldRemove = true;
                            }
                            everyScriptIsAsync && (everyScriptIsAsync = isAsync);
                            someScriptsAreAsync || (someScriptsAreAsync = isAsync);
                            someScriptsAreDefer || (someScriptsAreDefer = !isAsync);
                        }
                    }
                    // For asset references in index.html, also generate an import
                    // statement for each - this will be handled by the asset plugin
                    const assetAttrs = assetAttrsConfig[node.tag];
                    if (assetAttrs) {
                        for (const p of node.props) {
                            if (p.type === 6 /* ATTRIBUTE */ &&
                                p.value &&
                                assetAttrs.includes(p.name)) {
                                const url = p.value.content;
                                if (!isExcludedUrl(url)) {
                                    if (node.tag === 'link' && isCSSRequest(url)) {
                                        // CSS references, convert to import
                                        js += `\nimport ${JSON.stringify(url)}`;
                                        shouldRemove = true;
                                    }
                                    else {
                                        assetUrls.push(p);
                                    }
                                }
                                else if (checkPublicFile(url, config)) {
                                    s.overwrite(p.value.loc.start.offset, p.value.loc.end.offset, `"${config.base + url.slice(1)}"`);
                                }
                            }
                        }
                    }
                    if (shouldRemove) {
                        // remove the script tag from the html. we are going to inject new
                        // ones in the end.
                        s.remove(node.loc.start.offset, node.loc.end.offset);
                    }
                });
                isAsyncScriptMap.get(config).set(id, everyScriptIsAsync);
                if (someScriptsAreAsync && someScriptsAreDefer) {
                    config.logger.warn(`\nMixed async and defer script modules in ${id}, output script will fallback to defer. Every script, including inline ones, need to be marked as async for your output script to be async.`);
                }
                // for each encountered asset url, rewrite original html so that it
                // references the post-build location.
                for (const attr of assetUrls) {
                    const value = attr.value;
                    try {
                        const url = attr.name === 'srcset'
                            ? await processSrcSet(value.content, ({ url }) => urlToBuiltUrl(url, id, config, this))
                            : await urlToBuiltUrl(value.content, id, config, this);
                        s.overwrite(value.loc.start.offset, value.loc.end.offset, `"${url}"`);
                    }
                    catch (e) {
                        // #1885 preload may be pointing to urls that do not exist
                        // locally on disk
                        if (e.code !== 'ENOENT') {
                            throw e;
                        }
                    }
                }
                processedHtml.set(id, s.toString());
                // inject module preload polyfill only when configured and needed
                if (config.build.polyfillModulePreload &&
                    (someScriptsAreAsync || someScriptsAreDefer)) {
                    js = `import "${modulePreloadPolyfillId}";\n${js}`;
                }
                return js;
            }
        },
        async generateBundle(options, bundle) {
            const analyzedChunk = new Map();
            const getImportedChunks = (chunk, seen = new Set()) => {
                const chunks = [];
                chunk.imports.forEach((file) => {
                    const importee = bundle[file];
                    if ((importee === null || importee === void 0 ? void 0 : importee.type) === 'chunk' && !seen.has(file)) {
                        seen.add(file);
                        // post-order traversal
                        chunks.push(...getImportedChunks(importee, seen));
                        chunks.push(importee);
                    }
                });
                return chunks;
            };
            const toScriptTag = (chunk, isAsync) => ({
                tag: 'script',
                attrs: {
                    ...(isAsync ? { async: true } : {}),
                    type: 'module',
                    crossorigin: true,
                    src: toPublicPath(chunk.fileName, config)
                }
            });
            const toPreloadTag = (chunk) => ({
                tag: 'link',
                attrs: {
                    rel: 'modulepreload',
                    href: toPublicPath(chunk.fileName, config)
                }
            });
            const getCssTagsForChunk = (chunk, seen = new Set()) => {
                const tags = [];
                if (!analyzedChunk.has(chunk)) {
                    analyzedChunk.set(chunk, 1);
                    chunk.imports.forEach((file) => {
                        const importee = bundle[file];
                        if ((importee === null || importee === void 0 ? void 0 : importee.type) === 'chunk') {
                            tags.push(...getCssTagsForChunk(importee, seen));
                        }
                    });
                }
                const cssFiles = chunkToEmittedCssFileMap.get(chunk);
                if (cssFiles) {
                    cssFiles.forEach((file) => {
                        if (!seen.has(file)) {
                            seen.add(file);
                            tags.push({
                                tag: 'link',
                                attrs: {
                                    rel: 'stylesheet',
                                    href: toPublicPath(file, config)
                                }
                            });
                        }
                    });
                }
                return tags;
            };
            for (const [id, html] of processedHtml) {
                const isAsync = isAsyncScriptMap.get(config).get(id);
                // resolve asset url references
                let result = html.replace(assetUrlRE, (_, fileHash, postfix = '') => {
                    return config.base + getAssetFilename(fileHash, config) + postfix;
                });
                // find corresponding entry chunk
                const chunk = Object.values(bundle).find((chunk) => chunk.type === 'chunk' &&
                    chunk.isEntry &&
                    chunk.facadeModuleId === id);
                let canInlineEntry = false;
                // inject chunk asset links
                if (chunk) {
                    // an entry chunk can be inlined if
                    //  - it's an ES module (e.g. not generated by the legacy plugin)
                    //  - it contains no meaningful code other than import statements
                    if (options.format === 'es' && isEntirelyImport(chunk.code)) {
                        canInlineEntry = true;
                    }
                    // when not inlined, inject <script> for entry and modulepreload its dependencies
                    // when inlined, discard entry chunk and inject <script> for everything in post-order
                    const imports = getImportedChunks(chunk);
                    const assetTags = canInlineEntry
                        ? imports.map((chunk) => toScriptTag(chunk, isAsync))
                        : [toScriptTag(chunk, isAsync), ...imports.map(toPreloadTag)];
                    assetTags.push(...getCssTagsForChunk(chunk));
                    result = injectToHead(result, assetTags);
                }
                // inject css link when cssCodeSplit is false
                if (!config.build.cssCodeSplit) {
                    const cssChunk = Object.values(bundle).find((chunk) => chunk.type === 'asset' && chunk.name === 'style.css');
                    if (cssChunk) {
                        result = injectToHead(result, [
                            {
                                tag: 'link',
                                attrs: {
                                    rel: 'stylesheet',
                                    href: toPublicPath(cssChunk.fileName, config)
                                }
                            }
                        ]);
                    }
                }
                const shortEmitName = path__default.posix.relative(config.root, id);
                result = await applyHtmlTransforms(result, postHooks, {
                    path: '/' + shortEmitName,
                    filename: id,
                    bundle,
                    chunk
                });
                if (chunk && canInlineEntry) {
                    // all imports from entry have been inlined to html, prevent rollup from outputting it
                    delete bundle[chunk.fileName];
                }
                this.emitFile({
                    type: 'asset',
                    fileName: shortEmitName,
                    source: result
                });
            }
        }
    };
}
function resolveHtmlTransforms(plugins) {
    const preHooks = [];
    const postHooks = [];
    for (const plugin of plugins) {
        const hook = plugin.transformIndexHtml;
        if (hook) {
            if (typeof hook === 'function') {
                postHooks.push(hook);
            }
            else if (hook.enforce === 'pre') {
                preHooks.push(hook.transform);
            }
            else {
                postHooks.push(hook.transform);
            }
        }
    }
    return [preHooks, postHooks];
}
async function applyHtmlTransforms(html, hooks, ctx) {
    const headTags = [];
    const headPrependTags = [];
    const bodyTags = [];
    const bodyPrependTags = [];
    for (const hook of hooks) {
        const res = await hook(html, ctx);
        if (!res) {
            continue;
        }
        if (typeof res === 'string') {
            html = res;
        }
        else {
            let tags;
            if (Array.isArray(res)) {
                tags = res;
            }
            else {
                html = res.html || html;
                tags = res.tags;
            }
            for (const tag of tags) {
                if (tag.injectTo === 'body') {
                    bodyTags.push(tag);
                }
                else if (tag.injectTo === 'body-prepend') {
                    bodyPrependTags.push(tag);
                }
                else if (tag.injectTo === 'head') {
                    headTags.push(tag);
                }
                else {
                    headPrependTags.push(tag);
                }
            }
        }
    }
    // inject tags
    if (headPrependTags.length) {
        html = injectToHead(html, headPrependTags, true);
    }
    if (headTags.length) {
        html = injectToHead(html, headTags);
    }
    if (bodyPrependTags.length) {
        html = injectToBody(html, bodyPrependTags, true);
    }
    if (bodyTags.length) {
        html = injectToBody(html, bodyTags);
    }
    return html;
}
const importRE = /\bimport\s*("[^"]*[^\\]"|'[^']*[^\\]');*/g;
const commentRE$1 = /\/\*[\s\S]*?\*\/|\/\/.*$/gm;
function isEntirelyImport(code) {
    // only consider "side-effect" imports, which match <script type=module> semantics exactly
    // the regexes will remove too little in some exotic cases, but false-negatives are alright
    return !code.replace(importRE, '').replace(commentRE$1, '').trim().length;
}
function toPublicPath(filename, config) {
    return isExternalUrl(filename) ? filename : config.base + filename;
}
const headInjectRE = /([ \t]*)<\/head>/;
const headPrependInjectRE = /([ \t]*)<head[^>]*>/;
const doctypePrependInjectRE = /<!doctype html>/i;
function injectToHead(html, tags, prepend = false) {
    if (prepend) {
        // inject after head or doctype
        if (headPrependInjectRE.test(html)) {
            return html.replace(headPrependInjectRE, (match, p1) => `${match}\n${serializeTags(tags, incrementIndent(p1))}`);
        }
        else if (doctypePrependInjectRE.test(html)) {
            return html.replace(doctypePrependInjectRE, `$&\n${serializeTags(tags)}`);
        }
    }
    else {
        // inject before head close
        if (headInjectRE.test(html)) {
            // respect indentation of head tag
            return html.replace(headInjectRE, (match, p1) => `${serializeTags(tags, incrementIndent(p1))}${match}`);
        }
    }
    // if no <head> tag is present, just prepend
    return serializeTags(tags) + html;
}
const bodyInjectRE = /([ \t]*)<\/body>/;
const bodyPrependInjectRE = /([ \t]*)<body[^>]*>/;
function injectToBody(html, tags, prepend = false) {
    if (prepend) {
        // inject after body open
        if (bodyPrependInjectRE.test(html)) {
            return html.replace(bodyPrependInjectRE, (match, p1) => `${match}\n${serializeTags(tags, incrementIndent(p1))}`);
        }
        // if no body, prepend
        return serializeTags(tags) + html;
    }
    else {
        // inject before body close
        if (bodyInjectRE.test(html)) {
            return html.replace(bodyInjectRE, (match, p1) => `${serializeTags(tags, incrementIndent(p1))}${match}`);
        }
        // if no body, append
        return html + `\n` + serializeTags(tags);
    }
}
const unaryTags = new Set(['link', 'meta', 'base']);
function serializeTag({ tag, attrs, children }, indent = '') {
    if (unaryTags.has(tag)) {
        return `<${tag}${serializeAttrs(attrs)}>`;
    }
    else {
        return `<${tag}${serializeAttrs(attrs)}>${serializeTags(children, incrementIndent(indent))}</${tag}>`;
    }
}
function serializeTags(tags, indent = '') {
    if (typeof tags === 'string') {
        return tags;
    }
    else if (tags && tags.length) {
        return tags.map((tag) => `${indent}${serializeTag(tag, indent)}\n`).join('');
    }
    return '';
}
function serializeAttrs(attrs) {
    let res = '';
    for (const key in attrs) {
        if (typeof attrs[key] === 'boolean') {
            res += attrs[key] ? ` ${key}` : ``;
        }
        else {
            res += ` ${key}=${JSON.stringify(attrs[key])}`;
        }
    }
    return res;
}
function incrementIndent(indent = '') {
    return `${indent}${indent[0] === '\t' ? '\t' : '  '}`;
}

var __defProp = Object.defineProperty;
var __defProps = Object.defineProperties;
var __getOwnPropDescs = Object.getOwnPropertyDescriptors;
var __getOwnPropSymbols = Object.getOwnPropertySymbols;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __propIsEnum = Object.prototype.propertyIsEnumerable;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __spreadValues = (a, b) => {
  for (var prop in b || (b = {}))
    if (__hasOwnProp.call(b, prop))
      __defNormalProp(a, prop, b[prop]);
  if (__getOwnPropSymbols)
    for (var prop of __getOwnPropSymbols(b)) {
      if (__propIsEnum.call(b, prop))
        __defNormalProp(a, prop, b[prop]);
    }
  return a;
};
var __spreadProps = (a, b) => __defProps(a, __getOwnPropDescs(b));
typeof require !== "undefined" ? require : (x) => {
  throw new Error('Dynamic require of "' + x + '" is not supported');
};
async function find(filename) {
  let dir = path__default.dirname(path__default.resolve(filename));
  while (dir) {
    const tsconfig = await tsconfigInDir(dir);
    if (tsconfig) {
      return tsconfig;
    } else {
      const parent = path__default.dirname(dir);
      if (parent === dir) {
        break;
      } else {
        dir = parent;
      }
    }
  }
  throw new Error(`no tsconfig file found for ${filename}`);
}
async function tsconfigInDir(dir) {
  const tsconfig = path__default.join(dir, "tsconfig.json");
  try {
    const stat = await fs$r.promises.stat(tsconfig);
    if (stat.isFile() || stat.isFIFO()) {
      return tsconfig;
    }
  } catch (e) {
    if (e.code !== "ENOENT") {
      throw e;
    }
  }
}

// src/to-json.ts
function toJson(tsconfigJson) {
  const stripped = stripDanglingComma(stripJsonComments(stripBom(tsconfigJson)));
  if (stripped.trim() === "") {
    return "{}";
  } else {
    return stripped;
  }
}
function stripDanglingComma(pseudoJson) {
  let insideString = false;
  let offset = 0;
  let result = "";
  let danglingCommaPos = null;
  for (let i = 0; i < pseudoJson.length; i++) {
    const currentCharacter = pseudoJson[i];
    if (currentCharacter === '"') {
      const escaped = isEscaped(pseudoJson, i);
      if (!escaped) {
        insideString = !insideString;
      }
    }
    if (insideString) {
      danglingCommaPos = null;
      continue;
    }
    if (currentCharacter === ",") {
      danglingCommaPos = i;
      continue;
    }
    if (danglingCommaPos) {
      if (currentCharacter === "}" || currentCharacter === "]") {
        result += pseudoJson.slice(offset, danglingCommaPos) + " ";
        offset = danglingCommaPos + 1;
        danglingCommaPos = null;
      } else if (!currentCharacter.match(/\s/)) {
        danglingCommaPos = null;
      }
    }
  }
  return result + pseudoJson.substring(offset);
}
function isEscaped(jsonString, quotePosition) {
  let index = quotePosition - 1;
  let backslashCount = 0;
  while (jsonString[index] === "\\") {
    index -= 1;
    backslashCount += 1;
  }
  return Boolean(backslashCount % 2);
}
function strip(string, start, end) {
  return string.slice(start, end).replace(/\S/g, " ");
}
var singleComment = Symbol("singleComment");
var multiComment = Symbol("multiComment");
function stripJsonComments(jsonString) {
  let isInsideString = false;
  let isInsideComment = false;
  let offset = 0;
  let result = "";
  for (let index = 0; index < jsonString.length; index++) {
    const currentCharacter = jsonString[index];
    const nextCharacter = jsonString[index + 1];
    if (!isInsideComment && currentCharacter === '"') {
      const escaped = isEscaped(jsonString, index);
      if (!escaped) {
        isInsideString = !isInsideString;
      }
    }
    if (isInsideString) {
      continue;
    }
    if (!isInsideComment && currentCharacter + nextCharacter === "//") {
      result += jsonString.slice(offset, index);
      offset = index;
      isInsideComment = singleComment;
      index++;
    } else if (isInsideComment === singleComment && currentCharacter + nextCharacter === "\r\n") {
      index++;
      isInsideComment = false;
      result += strip(jsonString, offset, index);
      offset = index;
    } else if (isInsideComment === singleComment && currentCharacter === "\n") {
      isInsideComment = false;
      result += strip(jsonString, offset, index);
      offset = index;
    } else if (!isInsideComment && currentCharacter + nextCharacter === "/*") {
      result += jsonString.slice(offset, index);
      offset = index;
      isInsideComment = multiComment;
      index++;
    } else if (isInsideComment === multiComment && currentCharacter + nextCharacter === "*/") {
      index++;
      isInsideComment = false;
      result += strip(jsonString, offset, index + 1);
      offset = index + 1;
    }
  }
  return result + (isInsideComment ? strip(jsonString.slice(offset)) : jsonString.slice(offset));
}
function stripBom(string) {
  if (string.charCodeAt(0) === 65279) {
    return string.slice(1);
  }
  return string;
}
var POSIX_SEP_RE = new RegExp("\\" + path__default.posix.sep, "g");
var NATIVE_SEP_RE = new RegExp("\\" + path__default.sep, "g");
var PATTERN_REGEX_CACHE = new Map();
var GLOB_ALL_PATTERN = `**/*`;
new Function("path", "return import(path).then(m => m.default)");
async function resolveTSConfig(filename) {
  const basename = path__default.basename(filename);
  if (basename !== "tsconfig.json") {
    return;
  }
  const tsconfig = path__default.resolve(filename);
  try {
    const stat = await fs$r.promises.stat(tsconfig);
    if (stat.isFile() || stat.isFIFO()) {
      return tsconfig;
    }
  } catch (e) {
    if (e.code !== "ENOENT") {
      throw e;
    }
  }
  throw new Error(`no tsconfig file found for ${filename}`);
}
function posix2native(filename) {
  return path__default.posix.sep !== path__default.sep && filename.includes(path__default.posix.sep) ? filename.replace(POSIX_SEP_RE, path__default.sep) : filename;
}
function native2posix(filename) {
  return path__default.posix.sep !== path__default.sep && filename.includes(path__default.sep) ? filename.replace(NATIVE_SEP_RE, path__default.posix.sep) : filename;
}
function resolve2posix(dir, filename) {
  if (path__default.sep === path__default.posix.sep) {
    return dir ? path__default.resolve(dir, filename) : path__default.resolve(filename);
  }
  return native2posix(dir ? path__default.resolve(posix2native(dir), posix2native(filename)) : path__default.resolve(posix2native(filename)));
}
function resolveReferencedTSConfigFiles(result) {
  const dir = path__default.dirname(result.tsconfigFile);
  return result.tsconfig.references.map((ref) => {
    const refPath = ref.path.endsWith(".json") ? ref.path : path__default.join(ref.path, "tsconfig.json");
    return resolve2posix(dir, refPath);
  });
}
function resolveSolutionTSConfig(filename, result) {
  if (result.referenced && [".ts", ".tsx"].some((ext) => filename.endsWith(ext)) && !isIncluded(filename, result)) {
    const solutionTSConfig = result.referenced.find((referenced) => isIncluded(filename, referenced));
    if (solutionTSConfig) {
      return __spreadProps(__spreadValues({}, solutionTSConfig), {
        solution: result
      });
    }
  }
  return result;
}
function isIncluded(filename, result) {
  const dir = native2posix(path__default.dirname(result.tsconfigFile));
  const files = (result.tsconfig.files || []).map((file) => resolve2posix(dir, file));
  const absoluteFilename = resolve2posix(null, filename);
  if (files.includes(filename)) {
    return true;
  }
  const isIncluded2 = isGlobMatch(absoluteFilename, dir, result.tsconfig.include || (result.tsconfig.files ? [] : [GLOB_ALL_PATTERN]));
  if (isIncluded2) {
    const isExcluded = isGlobMatch(absoluteFilename, dir, result.tsconfig.exclude || []);
    return !isExcluded;
  }
  return false;
}
function isGlobMatch(filename, dir, patterns) {
  return patterns.some((pattern) => {
    let lastWildcardIndex = pattern.length;
    let hasWildcard = false;
    for (let i = pattern.length - 1; i > -1; i--) {
      if (pattern[i] === "*" || pattern[i] === "?") {
        lastWildcardIndex = i;
        hasWildcard = true;
        break;
      }
    }
    if (lastWildcardIndex < pattern.length - 1 && !filename.endsWith(pattern.slice(lastWildcardIndex + 1))) {
      return false;
    }
    if (pattern.endsWith("*") && !(filename.endsWith(".ts") || filename.endsWith(".tsx"))) {
      return false;
    }
    if (pattern === GLOB_ALL_PATTERN) {
      return filename.startsWith(`${dir}/`);
    }
    const resolvedPattern = resolve2posix(dir, pattern);
    let firstWildcardIndex = -1;
    for (let i = 0; i < resolvedPattern.length; i++) {
      if (resolvedPattern[i] === "*" || resolvedPattern[i] === "?") {
        firstWildcardIndex = i;
        hasWildcard = true;
        break;
      }
    }
    if (firstWildcardIndex > 1 && !filename.startsWith(resolvedPattern.slice(0, firstWildcardIndex - 1))) {
      return false;
    }
    if (!hasWildcard) {
      return filename === resolvedPattern;
    }
    if (PATTERN_REGEX_CACHE.has(resolvedPattern)) {
      return PATTERN_REGEX_CACHE.get(resolvedPattern).test(filename);
    }
    const regex = pattern2regex(resolvedPattern);
    PATTERN_REGEX_CACHE.set(resolvedPattern, regex);
    return regex.test(filename);
  });
}
function pattern2regex(resolvedPattern) {
  let regexStr = "^";
  for (let i = 0; i < resolvedPattern.length; i++) {
    const char = resolvedPattern[i];
    if (char === "?") {
      regexStr += "[^\\/]";
      continue;
    }
    if (char === "*") {
      if (resolvedPattern[i + 1] === "*" && resolvedPattern[i + 2] === "/") {
        i += 2;
        regexStr += "(?:[^\\/]*\\/)*";
        continue;
      }
      regexStr += "[^\\/]*";
      continue;
    }
    if ("/.+^${}()|[]\\".includes(char)) {
      regexStr += `\\`;
    }
    regexStr += char;
  }
  if (resolvedPattern.endsWith("*")) {
    regexStr += "\\.tsx?";
  }
  regexStr += "$";
  return new RegExp(regexStr);
}

// src/parse.ts
async function parse$e(filename, options) {
  const cache = options == null ? void 0 : options.cache;
  if (cache == null ? void 0 : cache.has(filename)) {
    return cache.get(filename);
  }
  let tsconfigFile;
  if (options == null ? void 0 : options.resolveWithEmptyIfConfigNotFound) {
    try {
      tsconfigFile = await resolveTSConfig(filename) || await find(filename);
    } catch (e) {
      const notFoundResult = {
        tsconfigFile: "no_tsconfig_file_found",
        tsconfig: {}
      };
      cache == null ? void 0 : cache.set(filename, notFoundResult);
      return notFoundResult;
    }
  } else {
    tsconfigFile = await resolveTSConfig(filename) || await find(filename);
  }
  let result;
  if (cache == null ? void 0 : cache.has(tsconfigFile)) {
    result = cache.get(tsconfigFile);
  } else {
    result = await parseFile$1(tsconfigFile, cache);
    await Promise.all([parseExtends(result, cache), parseReferences(result, cache)]);
    cache == null ? void 0 : cache.set(tsconfigFile, result);
  }
  result = resolveSolutionTSConfig(filename, result);
  cache == null ? void 0 : cache.set(filename, result);
  return result;
}
async function parseFile$1(tsconfigFile, cache) {
  if (cache == null ? void 0 : cache.has(tsconfigFile)) {
    return cache.get(tsconfigFile);
  }
  try {
    const tsconfigJson = await fs$r.promises.readFile(tsconfigFile, "utf-8");
    const json = toJson(tsconfigJson);
    const result = {
      tsconfigFile,
      tsconfig: normalizeTSConfig(JSON.parse(json), path__default.dirname(tsconfigFile))
    };
    cache == null ? void 0 : cache.set(tsconfigFile, result);
    return result;
  } catch (e) {
    throw new TSConfckParseError(`parsing ${tsconfigFile} failed: ${e}`, "PARSE_FILE", tsconfigFile, e);
  }
}
function normalizeTSConfig(tsconfig, dir) {
  var _a;
  if (((_a = tsconfig.compilerOptions) == null ? void 0 : _a.baseUrl) && !path__default.isAbsolute(tsconfig.compilerOptions.baseUrl)) {
    tsconfig.compilerOptions.baseUrl = resolve2posix(dir, tsconfig.compilerOptions.baseUrl);
  }
  return tsconfig;
}
async function parseReferences(result, cache) {
  if (!result.tsconfig.references) {
    return;
  }
  const referencedFiles = resolveReferencedTSConfigFiles(result);
  const referenced = await Promise.all(referencedFiles.map((file) => parseFile$1(file, cache)));
  await Promise.all(referenced.map((ref) => parseExtends(ref, cache)));
  result.referenced = referenced;
}
async function parseExtends(result, cache) {
  if (!result.tsconfig.extends) {
    return;
  }
  const extended = [
    { tsconfigFile: result.tsconfigFile, tsconfig: JSON.parse(JSON.stringify(result.tsconfig)) }
  ];
  while (extended[extended.length - 1].tsconfig.extends) {
    const extending = extended[extended.length - 1];
    const extendedTSConfigFile = resolveExtends(extending.tsconfig.extends, extending.tsconfigFile);
    if (extended.some((x) => x.tsconfigFile === extendedTSConfigFile)) {
      const circle = extended.concat({ tsconfigFile: extendedTSConfigFile, tsconfig: null }).map((e) => e.tsconfigFile).join(" -> ");
      throw new TSConfckParseError(`Circular dependency in "extends": ${circle}`, "EXTENDS_CIRCULAR", result.tsconfigFile);
    }
    extended.push(await parseFile$1(extendedTSConfigFile, cache));
  }
  result.extended = extended;
  for (const ext of result.extended.slice(1)) {
    extendTSConfig(result, ext);
  }
}
function resolveExtends(extended, from) {
  try {
    return require$$0$7.createRequire(from).resolve(extended);
  } catch (e) {
    throw new TSConfckParseError(`failed to resolve "extends":"${extended}" in ${from}`, "EXTENDS_RESOLVE", from, e);
  }
}
var EXTENDABLE_KEYS = [
  "compilerOptions",
  "files",
  "include",
  "exclude",
  "watchOptions",
  "compileOnSave",
  "typeAcquisition",
  "buildOptions"
];
function extendTSConfig(extending, extended) {
  const extendingConfig = extending.tsconfig;
  const extendedConfig = extended.tsconfig;
  const relativePath = native2posix(path__default.relative(path__default.dirname(extending.tsconfigFile), path__default.dirname(extended.tsconfigFile)));
  for (const key of Object.keys(extendedConfig).filter((key2) => EXTENDABLE_KEYS.includes(key2))) {
    if (key === "compilerOptions") {
      if (!extendingConfig.compilerOptions) {
        extendingConfig.compilerOptions = {};
      }
      for (const option of Object.keys(extendedConfig.compilerOptions)) {
        if (Object.prototype.hasOwnProperty.call(extendingConfig.compilerOptions, option)) {
          continue;
        }
        extendingConfig.compilerOptions[option] = rebaseRelative(option, extendedConfig.compilerOptions[option], relativePath);
      }
    } else if (extendingConfig[key] === void 0) {
      if (key === "watchOptions") {
        extendingConfig.watchOptions = {};
        for (const option of Object.keys(extendedConfig.watchOptions)) {
          extendingConfig.watchOptions[option] = rebaseRelative(option, extendedConfig.watchOptions[option], relativePath);
        }
      } else {
        extendingConfig[key] = rebaseRelative(key, extendedConfig[key], relativePath);
      }
    }
  }
}
var REBASE_KEYS = [
  "files",
  "include",
  "exclude",
  "baseUrl",
  "rootDir",
  "rootDirs",
  "typeRoots",
  "outDir",
  "outFile",
  "declarationDir",
  "excludeDirectories",
  "excludeFiles"
];
function rebaseRelative(key, value, prependPath) {
  if (!REBASE_KEYS.includes(key)) {
    return value;
  }
  if (Array.isArray(value)) {
    return value.map((x) => rebasePath(x, prependPath));
  } else {
    return rebasePath(value, prependPath);
  }
}
function rebasePath(value, prependPath) {
  if (path__default.isAbsolute(value)) {
    return value;
  } else {
    return path__default.posix.normalize(path__default.posix.join(prependPath, value));
  }
}
var TSConfckParseError = class extends Error {
  constructor(message, code, tsconfigFile, cause) {
    super(message);
    Object.setPrototypeOf(this, TSConfckParseError.prototype);
    this.name = TSConfckParseError.name;
    this.code = code;
    this.cause = cause;
    this.tsconfigFile = tsconfigFile;
  }
};

const debug$e = createDebugger('vite:esbuild');
let server;
async function transformWithEsbuild(code, filename, options, inMap) {
    var _a, _b, _c;
    let loader = options === null || options === void 0 ? void 0 : options.loader;
    if (!loader) {
        // if the id ends with a valid ext, use it (e.g. vue blocks)
        // otherwise, cleanup the query before checking the ext
        const ext = path__default
            .extname(/\.\w+$/.test(filename) ? filename : cleanUrl(filename))
            .slice(1);
        if (ext === 'cjs' || ext === 'mjs') {
            loader = 'js';
        }
        else {
            loader = ext;
        }
    }
    let tsconfigRaw = options === null || options === void 0 ? void 0 : options.tsconfigRaw;
    // if options provide tsconfigraw in string, it takes highest precedence
    if (typeof tsconfigRaw !== 'string') {
        // these fields would affect the compilation result
        // https://esbuild.github.io/content-types/#tsconfig-json
        const meaningfulFields = [
            'jsxFactory',
            'jsxFragmentFactory',
            'useDefineForClassFields',
            'importsNotUsedAsValues'
        ];
        const compilerOptionsForFile = {};
        if (loader === 'ts' || loader === 'tsx') {
            const loadedTsconfig = await loadTsconfigJsonForFile(filename);
            const loadedCompilerOptions = (_a = loadedTsconfig.compilerOptions) !== null && _a !== void 0 ? _a : {};
            for (const field of meaningfulFields) {
                if (field in loadedCompilerOptions) {
                    // @ts-ignore TypeScript can't tell they are of the same type
                    compilerOptionsForFile[field] = loadedCompilerOptions[field];
                }
            }
            // align with TypeScript 4.3
            // https://github.com/microsoft/TypeScript/pull/42663
            if (((_b = loadedCompilerOptions.target) === null || _b === void 0 ? void 0 : _b.toLowerCase()) === 'esnext') {
                compilerOptionsForFile.useDefineForClassFields =
                    (_c = loadedCompilerOptions.useDefineForClassFields) !== null && _c !== void 0 ? _c : true;
            }
        }
        tsconfigRaw = {
            ...tsconfigRaw,
            compilerOptions: {
                ...compilerOptionsForFile,
                ...tsconfigRaw === null || tsconfigRaw === void 0 ? void 0 : tsconfigRaw.compilerOptions
            }
        };
    }
    const resolvedOptions = {
        sourcemap: true,
        // ensure source file name contains full query
        sourcefile: filename,
        ...options,
        loader,
        tsconfigRaw
    };
    delete resolvedOptions.include;
    delete resolvedOptions.exclude;
    delete resolvedOptions.jsxInject;
    try {
        const result = await esbuild.transform(code, resolvedOptions);
        let map;
        if (inMap && resolvedOptions.sourcemap) {
            const nextMap = JSON.parse(result.map);
            nextMap.sourcesContent = [];
            map = combineSourcemaps(filename, [
                nextMap,
                inMap
            ]);
        }
        else {
            map = resolvedOptions.sourcemap
                ? JSON.parse(result.map)
                : { mappings: '' };
        }
        if (Array.isArray(map.sources)) {
            map.sources = map.sources.map((it) => toUpperCaseDriveLetter(it));
        }
        return {
            ...result,
            map
        };
    }
    catch (e) {
        debug$e(`esbuild error with options used: `, resolvedOptions);
        // patch error information
        if (e.errors) {
            e.frame = '';
            e.errors.forEach((m) => {
                e.frame += `\n` + prettifyMessage(m, code);
            });
            e.loc = e.errors[0].location;
        }
        throw e;
    }
}
function esbuildPlugin(options = {}) {
    const filter = createFilter$1(options.include || /\.(tsx?|jsx)$/, options.exclude || /\.js$/);
    return {
        name: 'vite:esbuild',
        configureServer(_server) {
            server = _server;
            server.watcher
                .on('add', reloadOnTsconfigChange)
                .on('change', reloadOnTsconfigChange)
                .on('unlink', reloadOnTsconfigChange);
        },
        async transform(code, id) {
            if (filter(id) || filter(cleanUrl(id))) {
                const result = await transformWithEsbuild(code, id, options);
                if (result.warnings.length) {
                    result.warnings.forEach((m) => {
                        this.warn(prettifyMessage(m, code));
                    });
                }
                if (options.jsxInject && /\.(?:j|t)sx\b/.test(id)) {
                    result.code = options.jsxInject + ';' + result.code;
                }
                return {
                    code: result.code,
                    map: result.map
                };
            }
        }
    };
}
const rollupToEsbuildFormatMap = {
    es: 'esm',
    cjs: 'cjs',
    iife: 'iife'
};
const buildEsbuildPlugin = (config) => {
    return {
        name: 'vite:esbuild-transpile',
        async renderChunk(code, chunk, opts) {
            // @ts-ignore injected by @vitejs/plugin-legacy
            if (opts.__vite_skip_esbuild__) {
                return null;
            }
            const target = config.build.target;
            const minify = config.build.minify === 'esbuild' &&
                // Do not minify ES lib output since that would remove pure annotations
                // and break tree-shaking
                // https://github.com/vuejs/vue-next/issues/2860#issuecomment-926882793
                !(config.build.lib && opts.format === 'es');
            if ((!target || target === 'esnext') && !minify) {
                return null;
            }
            const res = await transformWithEsbuild(code, chunk.fileName, {
                target: target || undefined,
                ...(minify
                    ? {
                        minify,
                        treeShaking: true,
                        format: rollupToEsbuildFormatMap[opts.format]
                    }
                    : undefined)
            });
            return res;
        }
    };
};
function prettifyMessage(m, code) {
    let res = source.yellow(m.text);
    if (m.location) {
        const lines = code.split(/\r?\n/g);
        const line = Number(m.location.line);
        const column = Number(m.location.column);
        const offset = lines
            .slice(0, line - 1)
            .map((l) => l.length)
            .reduce((total, l) => total + l + 1, 0) + column;
        res += `\n` + generateCodeFrame(code, offset, offset + 1);
    }
    return res + `\n`;
}
const tsconfigCache = new Map();
async function loadTsconfigJsonForFile(filename) {
    try {
        const result = await parse$e(filename, {
            cache: tsconfigCache,
            resolveWithEmptyIfConfigNotFound: true
        });
        // tsconfig could be out of root, make sure it is watched on dev
        if (server && result.tsconfigFile !== 'no_tsconfig_file_found') {
            ensureWatchedFile(server.watcher, result.tsconfigFile, server.config.root);
        }
        return result.tsconfig;
    }
    catch (e) {
        if (e instanceof TSConfckParseError) {
            // tsconfig could be out of root, make sure it is watched on dev
            if (server && e.tsconfigFile) {
                ensureWatchedFile(server.watcher, e.tsconfigFile, server.config.root);
            }
        }
        throw e;
    }
}
function reloadOnTsconfigChange(changedFile) {
    // any tsconfig.json that's added in the workspace could be closer to a code file than a previously cached one
    // any json file in the tsconfig cache could have been used to compile ts
    if (path__default.basename(changedFile) === 'tsconfig.json' ||
        (changedFile.endsWith('.json') && tsconfigCache.has(changedFile))) {
        server.config.logger.info(`changed tsconfig file detected: ${changedFile} - Clearing cache and forcing full-reload to ensure typescript is compiled with updated config values.`, { clear: server.config.clearScreen, timestamp: true });
        // clear tsconfig cache so that recompile works with up2date configs
        tsconfigCache.clear();
        // clear module graph to remove code compiled with outdated config
        server.moduleGraph.invalidateAll();
        // force full reload
        server.ws.send({
            type: 'full-reload',
            path: '*'
        });
    }
}

var dist = {};

var __importDefault = (commonjsGlobal && commonjsGlobal.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(dist, "__esModule", { value: true });
var Worker_1 = dist.Worker = void 0;
const os_1 = __importDefault(require$$0__default$1);
const worker_threads_1 = require$$1__default;
class Worker {
    constructor(fn, options = {}) {
        this.code = genWorkerCode(fn);
        this.max = options.max || Math.max(1, os_1.default.cpus().length - 1);
        this.pool = [];
        this.idlePool = [];
        this.queue = [];
    }
    async run(...args) {
        const worker = await this._getAvailableWorker();
        return new Promise((resolve, reject) => {
            worker.currentResolve = resolve;
            worker.currentReject = reject;
            worker.postMessage(args);
        });
    }
    stop() {
        this.pool.forEach((w) => w.unref());
        this.queue.forEach(([_, reject]) => reject(new Error('Main worker pool stopped before a worker was available.')));
        this.pool = [];
        this.idlePool = [];
        this.queue = [];
    }
    async _getAvailableWorker() {
        // has idle one?
        if (this.idlePool.length) {
            return this.idlePool.shift();
        }
        // can spawn more?
        if (this.pool.length < this.max) {
            const worker = new worker_threads_1.Worker(this.code, { eval: true });
            worker.on('message', (res) => {
                worker.currentResolve && worker.currentResolve(res);
                worker.currentResolve = null;
                this._assignDoneWorker(worker);
            });
            worker.on('error', (err) => {
                worker.currentReject && worker.currentReject(err);
                worker.currentReject = null;
            });
            worker.on('exit', (code) => {
                const i = this.pool.indexOf(worker);
                if (i > -1)
                    this.pool.splice(i, 1);
                if (code !== 0 && worker.currentReject) {
                    worker.currentReject(new Error(`Wroker stopped with non-0 exit code ${code}`));
                    worker.currentReject = null;
                }
            });
            this.pool.push(worker);
            return worker;
        }
        // no one is available, we have to wait
        let resolve;
        let reject;
        const onWorkerAvailablePromise = new Promise((r, rj) => {
            resolve = r;
            reject = rj;
        });
        this.queue.push([resolve, reject]);
        return onWorkerAvailablePromise;
    }
    _assignDoneWorker(worker) {
        // someone's waiting already?
        if (this.queue.length) {
            const [resolve] = this.queue.shift();
            resolve(worker);
            return;
        }
        // take a rest.
        this.idlePool.push(worker);
    }
}
Worker_1 = dist.Worker = Worker;
function genWorkerCode(fn) {
    return `
const doWork = ${fn.toString()}

const { parentPort } = require('worker_threads')

parentPort.on('message', async (args) => {
  const res = await doWork(...args)
  parentPort.postMessage(res)
})
  `;
}

function terserPlugin(config) {
    const worker = new Worker_1((basedir, code, options) => {
        // when vite is linked, the worker thread won't share the same resolve
        // root with vite itself, so we have to pass in the basedir and resolve
        // terser first.
        // eslint-disable-next-line node/no-restricted-require
        const terserPath = require.resolve('vite/dist/node/terser', {
            paths: [basedir]
        });
        return require(terserPath).minify(code, options);
    });
    return {
        name: 'vite:terser',
        async renderChunk(code, _chunk, outputOptions) {
            // Do not minify ES lib output since that would remove pure annotations
            // and break tree-shaking
            if (config.build.lib && outputOptions.format === 'es') {
                return null;
            }
            const res = await worker.run(__dirname, code, {
                safari10: true,
                ...config.build.terserOptions,
                sourceMap: !!outputOptions.sourcemap,
                module: outputOptions.format.startsWith('es'),
                toplevel: outputOptions.format === 'cjs'
            });
            return {
                code: res.code,
                map: res.map
            };
        },
        closeBundle() {
            worker.stop();
        }
    };
}

function manifestPlugin(config) {
    const manifest = {};
    let outputCount;
    return {
        name: 'vite:manifest',
        buildStart() {
            outputCount = 0;
        },
        generateBundle({ format }, bundle) {
            var _a;
            function getChunkName(chunk) {
                if (chunk.facadeModuleId) {
                    let name = normalizePath$4(path__default.relative(config.root, chunk.facadeModuleId));
                    if (format === 'system' && !chunk.name.includes('-legacy')) {
                        const ext = path__default.extname(name);
                        name = name.slice(0, -ext.length) + `-legacy` + ext;
                    }
                    return name;
                }
                else {
                    return `_` + path__default.basename(chunk.fileName);
                }
            }
            function getInternalImports(imports) {
                const filteredImports = [];
                for (const file of imports) {
                    if (bundle[file] === undefined) {
                        continue;
                    }
                    filteredImports.push(getChunkName(bundle[file]));
                }
                return filteredImports;
            }
            function createChunk(chunk) {
                const manifestChunk = {
                    file: chunk.fileName
                };
                if (chunk.facadeModuleId) {
                    manifestChunk.src = getChunkName(chunk);
                }
                if (chunk.isEntry) {
                    manifestChunk.isEntry = true;
                }
                if (chunk.isDynamicEntry) {
                    manifestChunk.isDynamicEntry = true;
                }
                if (chunk.imports.length) {
                    const internalImports = getInternalImports(chunk.imports);
                    if (internalImports.length > 0) {
                        manifestChunk.imports = internalImports;
                    }
                }
                if (chunk.dynamicImports.length) {
                    const internalImports = getInternalImports(chunk.dynamicImports);
                    if (internalImports.length > 0) {
                        manifestChunk.dynamicImports = internalImports;
                    }
                }
                const cssFiles = chunkToEmittedCssFileMap.get(chunk);
                if (cssFiles) {
                    manifestChunk.css = [...cssFiles];
                }
                const assets = chunkToEmittedAssetsMap.get(chunk);
                if (assets)
                    [(manifestChunk.assets = [...assets])];
                return manifestChunk;
            }
            for (const file in bundle) {
                const chunk = bundle[file];
                if (chunk.type === 'chunk') {
                    manifest[getChunkName(chunk)] = createChunk(chunk);
                }
            }
            outputCount++;
            const output = (_a = config.build.rollupOptions) === null || _a === void 0 ? void 0 : _a.output;
            const outputLength = Array.isArray(output) ? output.length : 1;
            if (outputCount >= outputLength) {
                this.emitFile({
                    fileName: `manifest.json`,
                    type: 'asset',
                    source: JSON.stringify(manifest, null, 2)
                });
            }
        }
    };
}

function walk$2(ast, { enter, leave }) {
	return visit(ast, null, enter, leave);
}

let should_skip = false;
let should_remove = false;
let replacement = null;
const context = {
	skip: () => should_skip = true,
	remove: () => should_remove = true,
	replace: (node) => replacement = node
};

function replace(parent, prop, index, node) {
	if (parent) {
		if (index !== null) {
			parent[prop][index] = node;
		} else {
			parent[prop] = node;
		}
	}
}

function remove(parent, prop, index) {
	if (parent) {
		if (index !== null) {
			parent[prop].splice(index, 1);
		} else {
			delete parent[prop];
		}
	}
}

function visit(
	node,
	parent,
	enter,
	leave,
	prop,
	index
) {
	if (node) {
		if (enter) {
			const _should_skip = should_skip;
			const _should_remove = should_remove;
			const _replacement = replacement;
			should_skip = false;
			should_remove = false;
			replacement = null;

			enter.call(context, node, parent, prop, index);

			if (replacement) {
				node = replacement;
				replace(parent, prop, index, node);
			}

			if (should_remove) {
				remove(parent, prop, index);
			}

			const skipped = should_skip;
			const removed = should_remove;

			should_skip = _should_skip;
			should_remove = _should_remove;
			replacement = _replacement;

			if (skipped) return node;
			if (removed) return null;
		}

		for (const key in node) {
			const value = (node )[key];

			if (typeof value !== 'object') {
				continue;
			}

			else if (Array.isArray(value)) {
				for (let j = 0, k = 0; j < value.length; j += 1, k += 1) {
					if (value[j] !== null && typeof value[j].type === 'string') {
						if (!visit(value[j], node, enter, leave, key, k)) {
							// removed
							j--;
						}
					}
				}
			}

			else if (value !== null && typeof value.type === 'string') {
				visit(value, node, enter, leave, key, null);
			}
		}

		if (leave) {
			const _replacement = replacement;
			const _should_remove = should_remove;
			replacement = null;
			should_remove = false;

			leave.call(context, node, parent, prop, index);

			if (replacement) {
				node = replacement;
				replace(parent, prop, index, node);
			}

			if (should_remove) {
				remove(parent, prop, index);
			}

			const removed = should_remove;

			replacement = _replacement;
			should_remove = _should_remove;

			if (removed) return null;
		}
	}

	return node;
}

const extractors = {
    ArrayPattern(names, param) {
        for (const element of param.elements) {
            if (element)
                extractors[element.type](names, element);
        }
    },
    AssignmentPattern(names, param) {
        extractors[param.left.type](names, param.left);
    },
    Identifier(names, param) {
        names.push(param.name);
    },
    MemberExpression() { },
    ObjectPattern(names, param) {
        for (const prop of param.properties) {
            // @ts-ignore Typescript reports that this is not a valid type
            if (prop.type === 'RestElement') {
                extractors.RestElement(names, prop);
            }
            else {
                extractors[prop.value.type](names, prop.value);
            }
        }
    },
    RestElement(names, param) {
        extractors[param.argument.type](names, param.argument);
    }
};
const extractAssignedNames = function extractAssignedNames(param) {
    const names = [];
    extractors[param.type](names, param);
    return names;
};

const blockDeclarations = {
    const: true,
    let: true
};
class Scope$1 {
    constructor(options = {}) {
        this.parent = options.parent;
        this.isBlockScope = !!options.block;
        this.declarations = Object.create(null);
        if (options.params) {
            options.params.forEach((param) => {
                extractAssignedNames(param).forEach((name) => {
                    this.declarations[name] = true;
                });
            });
        }
    }
    addDeclaration(node, isBlockDeclaration, isVar) {
        if (!isBlockDeclaration && this.isBlockScope) {
            // it's a `var` or function node, and this
            // is a block scope, so we need to go up
            this.parent.addDeclaration(node, isBlockDeclaration, isVar);
        }
        else if (node.id) {
            extractAssignedNames(node.id).forEach((name) => {
                this.declarations[name] = true;
            });
        }
    }
    contains(name) {
        return this.declarations[name] || (this.parent ? this.parent.contains(name) : false);
    }
}
const attachScopes = function attachScopes(ast, propertyName = 'scope') {
    let scope = new Scope$1();
    walk$2(ast, {
        enter(n, parent) {
            const node = n;
            // function foo () {...}
            // class Foo {...}
            if (/(Function|Class)Declaration/.test(node.type)) {
                scope.addDeclaration(node, false, false);
            }
            // var foo = 1
            if (node.type === 'VariableDeclaration') {
                const { kind } = node;
                const isBlockDeclaration = blockDeclarations[kind];
                // don't add const/let declarations in the body of a for loop #113
                const parentType = parent ? parent.type : '';
                if (!(isBlockDeclaration && /ForOfStatement/.test(parentType))) {
                    node.declarations.forEach((declaration) => {
                        scope.addDeclaration(declaration, isBlockDeclaration, true);
                    });
                }
            }
            let newScope;
            // create new function scope
            if (/Function/.test(node.type)) {
                const func = node;
                newScope = new Scope$1({
                    parent: scope,
                    block: false,
                    params: func.params
                });
                // named function expressions - the name is considered
                // part of the function's scope
                if (func.type === 'FunctionExpression' && func.id) {
                    newScope.addDeclaration(func, false, false);
                }
            }
            // create new block scope
            if (node.type === 'BlockStatement' && !/Function/.test(parent.type)) {
                newScope = new Scope$1({
                    parent: scope,
                    block: true
                });
            }
            // catch clause has its own block scope
            if (node.type === 'CatchClause') {
                newScope = new Scope$1({
                    parent: scope,
                    params: node.param ? [node.param] : [],
                    block: true
                });
            }
            if (newScope) {
                Object.defineProperty(node, propertyName, {
                    value: newScope,
                    configurable: true
                });
                scope = newScope;
            }
        },
        leave(n) {
            const node = n;
            if (node[propertyName])
                scope = scope.parent;
        }
    });
    return scope;
};

// Helper since Typescript can't detect readonly arrays with Array.isArray
function isArray$2(arg) {
    return Array.isArray(arg);
}
function ensureArray(thing) {
    if (isArray$2(thing))
        return thing;
    if (thing == null)
        return [];
    return [thing];
}

function getMatcherString(id, resolutionBase) {
    if (resolutionBase === false) {
        return id;
    }
    // resolve('') is valid and will default to process.cwd()
    const basePath = path$t.resolve(resolutionBase || '')
        .split(path$t.sep)
        .join('/')
        // escape all possible (posix + win) path characters that might interfere with regex
        .replace(/[-^$*+?.()|[\]{}]/g, '\\$&');
    // Note that we use posix.join because:
    // 1. the basePath has been normalized to use /
    // 2. the incoming glob (id) matcher, also uses /
    // otherwise Node will force backslash (\) on windows
    return path$t.posix.join(basePath, id);
}
const createFilter = function createFilter(include, exclude, options) {
    const resolutionBase = options && options.resolve;
    const getMatcher = (id) => id instanceof RegExp
        ? id
        : {
            test: (what) => {
                // this refactor is a tad overly verbose but makes for easy debugging
                const pattern = getMatcherString(id, resolutionBase);
                const fn = picomatch$3(pattern, { dot: true });
                const result = fn(what);
                return result;
            }
        };
    const includeMatchers = ensureArray(include).map(getMatcher);
    const excludeMatchers = ensureArray(exclude).map(getMatcher);
    return function result(id) {
        if (typeof id !== 'string')
            return false;
        if (/\0/.test(id))
            return false;
        const pathId = id.split(path$t.sep).join('/');
        for (let i = 0; i < excludeMatchers.length; ++i) {
            const matcher = excludeMatchers[i];
            if (matcher.test(pathId))
                return false;
        }
        for (let i = 0; i < includeMatchers.length; ++i) {
            const matcher = includeMatchers[i];
            if (matcher.test(pathId))
                return true;
        }
        return !includeMatchers.length;
    };
};

const reservedWords$1 = 'break case class catch const continue debugger default delete do else export extends finally for function if import in instanceof let new return super switch this throw try typeof var void while with yield enum await implements package protected static interface private public';
const builtins = 'arguments Infinity NaN undefined null true false eval uneval isFinite isNaN parseFloat parseInt decodeURI decodeURIComponent encodeURI encodeURIComponent escape unescape Object Function Boolean Symbol Error EvalError InternalError RangeError ReferenceError SyntaxError TypeError URIError Number Math Date String RegExp Array Int8Array Uint8Array Uint8ClampedArray Int16Array Uint16Array Int32Array Uint32Array Float32Array Float64Array Map Set WeakMap WeakSet SIMD ArrayBuffer DataView JSON Promise Generator GeneratorFunction Reflect Proxy Intl';
const forbiddenIdentifiers = new Set(`${reservedWords$1} ${builtins}`.split(' '));
forbiddenIdentifiers.add('');
const makeLegalIdentifier = function makeLegalIdentifier(str) {
    let identifier = str
        .replace(/-(\w)/g, (_, letter) => letter.toUpperCase())
        .replace(/[^$_a-zA-Z0-9]/g, '_');
    if (/\d/.test(identifier[0]) || forbiddenIdentifiers.has(identifier)) {
        identifier = `_${identifier}`;
    }
    return identifier || '_';
};

var path$h = path__default;

var commondir = function (basedir, relfiles) {
    if (relfiles) {
        var files = relfiles.map(function (r) {
            return path$h.resolve(basedir, r);
        });
    }
    else {
        var files = basedir;
    }
    
    var res = files.slice(1).reduce(function (ps, file) {
        if (!file.match(/^([A-Za-z]:)?\/|\\/)) {
            throw new Error('relative path without a basedir');
        }
        
        var xs = file.split(/\/+|\\+/);
        for (
            var i = 0;
            ps[i] === xs[i] && i < Math.min(ps.length, xs.length);
            i++
        );
        return ps.slice(0, i);
    }, files[0].split(/\/+|\\+/));
    
    // Windows correctly handles paths with forward-slashes
    return res.length > 1 ? res.join('/') : '/'
};

var old$1 = {};

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var pathModule = path__default;
var isWindows$3 = process.platform === 'win32';
var fs$h = fs__default;

// JavaScript implementation of realpath, ported from node pre-v6

var DEBUG = process.env.NODE_DEBUG && /fs/.test(process.env.NODE_DEBUG);

function rethrow() {
  // Only enable in debug mode. A backtrace uses ~1000 bytes of heap space and
  // is fairly slow to generate.
  var callback;
  if (DEBUG) {
    var backtrace = new Error;
    callback = debugCallback;
  } else
    callback = missingCallback;

  return callback;

  function debugCallback(err) {
    if (err) {
      backtrace.message = err.message;
      err = backtrace;
      missingCallback(err);
    }
  }

  function missingCallback(err) {
    if (err) {
      if (process.throwDeprecation)
        throw err;  // Forgot a callback but don't know where? Use NODE_DEBUG=fs
      else if (!process.noDeprecation) {
        var msg = 'fs: missing callback ' + (err.stack || err.message);
        if (process.traceDeprecation)
          console.trace(msg);
        else
          console.error(msg);
      }
    }
  }
}

function maybeCallback(cb) {
  return typeof cb === 'function' ? cb : rethrow();
}

// Regexp that finds the next partion of a (partial) path
// result is [base_with_slash, base], e.g. ['somedir/', 'somedir']
if (isWindows$3) {
  var nextPartRe = /(.*?)(?:[\/\\]+|$)/g;
} else {
  var nextPartRe = /(.*?)(?:[\/]+|$)/g;
}

// Regex to find the device root, including trailing slash. E.g. 'c:\\'.
if (isWindows$3) {
  var splitRootRe = /^(?:[a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/][^\\\/]+)?[\\\/]*/;
} else {
  var splitRootRe = /^[\/]*/;
}

old$1.realpathSync = function realpathSync(p, cache) {
  // make p is absolute
  p = pathModule.resolve(p);

  if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
    return cache[p];
  }

  var original = p,
      seenLinks = {},
      knownHard = {};

  // current character position in p
  var pos;
  // the partial path so far, including a trailing slash if any
  var current;
  // the partial path without a trailing slash (except when pointing at a root)
  var base;
  // the partial path scanned in the previous round, with slash
  var previous;

  start();

  function start() {
    // Skip over roots
    var m = splitRootRe.exec(p);
    pos = m[0].length;
    current = m[0];
    base = m[0];
    previous = '';

    // On windows, check that the root exists. On unix there is no need.
    if (isWindows$3 && !knownHard[base]) {
      fs$h.lstatSync(base);
      knownHard[base] = true;
    }
  }

  // walk down the path, swapping out linked pathparts for their real
  // values
  // NB: p.length changes.
  while (pos < p.length) {
    // find the next part
    nextPartRe.lastIndex = pos;
    var result = nextPartRe.exec(p);
    previous = current;
    current += result[0];
    base = previous + result[1];
    pos = nextPartRe.lastIndex;

    // continue if not a symlink
    if (knownHard[base] || (cache && cache[base] === base)) {
      continue;
    }

    var resolvedLink;
    if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
      // some known symbolic link.  no need to stat again.
      resolvedLink = cache[base];
    } else {
      var stat = fs$h.lstatSync(base);
      if (!stat.isSymbolicLink()) {
        knownHard[base] = true;
        if (cache) cache[base] = base;
        continue;
      }

      // read the link if it wasn't read before
      // dev/ino always return 0 on windows, so skip the check.
      var linkTarget = null;
      if (!isWindows$3) {
        var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
        if (seenLinks.hasOwnProperty(id)) {
          linkTarget = seenLinks[id];
        }
      }
      if (linkTarget === null) {
        fs$h.statSync(base);
        linkTarget = fs$h.readlinkSync(base);
      }
      resolvedLink = pathModule.resolve(previous, linkTarget);
      // track this, if given a cache.
      if (cache) cache[base] = resolvedLink;
      if (!isWindows$3) seenLinks[id] = linkTarget;
    }

    // resolve the link, then start over
    p = pathModule.resolve(resolvedLink, p.slice(pos));
    start();
  }

  if (cache) cache[original] = p;

  return p;
};


old$1.realpath = function realpath(p, cache, cb) {
  if (typeof cb !== 'function') {
    cb = maybeCallback(cache);
    cache = null;
  }

  // make p is absolute
  p = pathModule.resolve(p);

  if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
    return process.nextTick(cb.bind(null, null, cache[p]));
  }

  var original = p,
      seenLinks = {},
      knownHard = {};

  // current character position in p
  var pos;
  // the partial path so far, including a trailing slash if any
  var current;
  // the partial path without a trailing slash (except when pointing at a root)
  var base;
  // the partial path scanned in the previous round, with slash
  var previous;

  start();

  function start() {
    // Skip over roots
    var m = splitRootRe.exec(p);
    pos = m[0].length;
    current = m[0];
    base = m[0];
    previous = '';

    // On windows, check that the root exists. On unix there is no need.
    if (isWindows$3 && !knownHard[base]) {
      fs$h.lstat(base, function(err) {
        if (err) return cb(err);
        knownHard[base] = true;
        LOOP();
      });
    } else {
      process.nextTick(LOOP);
    }
  }

  // walk down the path, swapping out linked pathparts for their real
  // values
  function LOOP() {
    // stop if scanned past end of path
    if (pos >= p.length) {
      if (cache) cache[original] = p;
      return cb(null, p);
    }

    // find the next part
    nextPartRe.lastIndex = pos;
    var result = nextPartRe.exec(p);
    previous = current;
    current += result[0];
    base = previous + result[1];
    pos = nextPartRe.lastIndex;

    // continue if not a symlink
    if (knownHard[base] || (cache && cache[base] === base)) {
      return process.nextTick(LOOP);
    }

    if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
      // known symbolic link.  no need to stat again.
      return gotResolvedLink(cache[base]);
    }

    return fs$h.lstat(base, gotStat);
  }

  function gotStat(err, stat) {
    if (err) return cb(err);

    // if not a symlink, skip to the next path part
    if (!stat.isSymbolicLink()) {
      knownHard[base] = true;
      if (cache) cache[base] = base;
      return process.nextTick(LOOP);
    }

    // stat & read the link if not read before
    // call gotTarget as soon as the link target is known
    // dev/ino always return 0 on windows, so skip the check.
    if (!isWindows$3) {
      var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
      if (seenLinks.hasOwnProperty(id)) {
        return gotTarget(null, seenLinks[id], base);
      }
    }
    fs$h.stat(base, function(err) {
      if (err) return cb(err);

      fs$h.readlink(base, function(err, target) {
        if (!isWindows$3) seenLinks[id] = target;
        gotTarget(err, target);
      });
    });
  }

  function gotTarget(err, target, base) {
    if (err) return cb(err);

    var resolvedLink = pathModule.resolve(previous, target);
    if (cache) cache[base] = resolvedLink;
    gotResolvedLink(resolvedLink);
  }

  function gotResolvedLink(resolvedLink) {
    // resolve the link, then start over
    p = pathModule.resolve(resolvedLink, p.slice(pos));
    start();
  }
};

var fs_realpath = realpath$2;
realpath$2.realpath = realpath$2;
realpath$2.sync = realpathSync;
realpath$2.realpathSync = realpathSync;
realpath$2.monkeypatch = monkeypatch;
realpath$2.unmonkeypatch = unmonkeypatch;

var fs$g = fs__default;
var origRealpath = fs$g.realpath;
var origRealpathSync = fs$g.realpathSync;

var version$1 = process.version;
var ok = /^v[0-5]\./.test(version$1);
var old = old$1;

function newError (er) {
  return er && er.syscall === 'realpath' && (
    er.code === 'ELOOP' ||
    er.code === 'ENOMEM' ||
    er.code === 'ENAMETOOLONG'
  )
}

function realpath$2 (p, cache, cb) {
  if (ok) {
    return origRealpath(p, cache, cb)
  }

  if (typeof cache === 'function') {
    cb = cache;
    cache = null;
  }
  origRealpath(p, cache, function (er, result) {
    if (newError(er)) {
      old.realpath(p, cache, cb);
    } else {
      cb(er, result);
    }
  });
}

function realpathSync (p, cache) {
  if (ok) {
    return origRealpathSync(p, cache)
  }

  try {
    return origRealpathSync(p, cache)
  } catch (er) {
    if (newError(er)) {
      return old.realpathSync(p, cache)
    } else {
      throw er
    }
  }
}

function monkeypatch () {
  fs$g.realpath = realpath$2;
  fs$g.realpathSync = realpathSync;
}

function unmonkeypatch () {
  fs$g.realpath = origRealpath;
  fs$g.realpathSync = origRealpathSync;
}

var concatMap$1 = function (xs, fn) {
    var res = [];
    for (var i = 0; i < xs.length; i++) {
        var x = fn(xs[i], i);
        if (isArray$1(x)) res.push.apply(res, x);
        else res.push(x);
    }
    return res;
};

var isArray$1 = Array.isArray || function (xs) {
    return Object.prototype.toString.call(xs) === '[object Array]';
};

var balancedMatch = balanced$1;
function balanced$1(a, b, str) {
  if (a instanceof RegExp) a = maybeMatch(a, str);
  if (b instanceof RegExp) b = maybeMatch(b, str);

  var r = range(a, b, str);

  return r && {
    start: r[0],
    end: r[1],
    pre: str.slice(0, r[0]),
    body: str.slice(r[0] + a.length, r[1]),
    post: str.slice(r[1] + b.length)
  };
}

function maybeMatch(reg, str) {
  var m = str.match(reg);
  return m ? m[0] : null;
}

balanced$1.range = range;
function range(a, b, str) {
  var begs, beg, left, right, result;
  var ai = str.indexOf(a);
  var bi = str.indexOf(b, ai + 1);
  var i = ai;

  if (ai >= 0 && bi > 0) {
    if(a===b) {
      return [ai, bi];
    }
    begs = [];
    left = str.length;

    while (i >= 0 && !result) {
      if (i == ai) {
        begs.push(i);
        ai = str.indexOf(a, i + 1);
      } else if (begs.length == 1) {
        result = [ begs.pop(), bi ];
      } else {
        beg = begs.pop();
        if (beg < left) {
          left = beg;
          right = bi;
        }

        bi = str.indexOf(b, i + 1);
      }

      i = ai < bi && ai >= 0 ? ai : bi;
    }

    if (begs.length) {
      result = [ left, right ];
    }
  }

  return result;
}

var concatMap = concatMap$1;
var balanced = balancedMatch;

var braceExpansion = expandTop;

var escSlash = '\0SLASH'+Math.random()+'\0';
var escOpen = '\0OPEN'+Math.random()+'\0';
var escClose = '\0CLOSE'+Math.random()+'\0';
var escComma = '\0COMMA'+Math.random()+'\0';
var escPeriod = '\0PERIOD'+Math.random()+'\0';

function numeric(str) {
  return parseInt(str, 10) == str
    ? parseInt(str, 10)
    : str.charCodeAt(0);
}

function escapeBraces(str) {
  return str.split('\\\\').join(escSlash)
            .split('\\{').join(escOpen)
            .split('\\}').join(escClose)
            .split('\\,').join(escComma)
            .split('\\.').join(escPeriod);
}

function unescapeBraces(str) {
  return str.split(escSlash).join('\\')
            .split(escOpen).join('{')
            .split(escClose).join('}')
            .split(escComma).join(',')
            .split(escPeriod).join('.');
}


// Basically just str.split(","), but handling cases
// where we have nested braced sections, which should be
// treated as individual members, like {a,{b,c},d}
function parseCommaParts(str) {
  if (!str)
    return [''];

  var parts = [];
  var m = balanced('{', '}', str);

  if (!m)
    return str.split(',');

  var pre = m.pre;
  var body = m.body;
  var post = m.post;
  var p = pre.split(',');

  p[p.length-1] += '{' + body + '}';
  var postParts = parseCommaParts(post);
  if (post.length) {
    p[p.length-1] += postParts.shift();
    p.push.apply(p, postParts);
  }

  parts.push.apply(parts, p);

  return parts;
}

function expandTop(str) {
  if (!str)
    return [];

  // I don't know why Bash 4.3 does this, but it does.
  // Anything starting with {} will have the first two bytes preserved
  // but *only* at the top level, so {},a}b will not expand to anything,
  // but a{},b}c will be expanded to [a}c,abc].
  // One could argue that this is a bug in Bash, but since the goal of
  // this module is to match Bash's rules, we escape a leading {}
  if (str.substr(0, 2) === '{}') {
    str = '\\{\\}' + str.substr(2);
  }

  return expand$1(escapeBraces(str), true).map(unescapeBraces);
}

function embrace(str) {
  return '{' + str + '}';
}
function isPadded(el) {
  return /^-?0\d/.test(el);
}

function lte(i, y) {
  return i <= y;
}
function gte(i, y) {
  return i >= y;
}

function expand$1(str, isTop) {
  var expansions = [];

  var m = balanced('{', '}', str);
  if (!m || /\$$/.test(m.pre)) return [str];

  var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
  var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
  var isSequence = isNumericSequence || isAlphaSequence;
  var isOptions = m.body.indexOf(',') >= 0;
  if (!isSequence && !isOptions) {
    // {a},b}
    if (m.post.match(/,.*\}/)) {
      str = m.pre + '{' + m.body + escClose + m.post;
      return expand$1(str);
    }
    return [str];
  }

  var n;
  if (isSequence) {
    n = m.body.split(/\.\./);
  } else {
    n = parseCommaParts(m.body);
    if (n.length === 1) {
      // x{{a,b}}y ==> x{a}y x{b}y
      n = expand$1(n[0], false).map(embrace);
      if (n.length === 1) {
        var post = m.post.length
          ? expand$1(m.post, false)
          : [''];
        return post.map(function(p) {
          return m.pre + n[0] + p;
        });
      }
    }
  }

  // at this point, n is the parts, and we know it's not a comma set
  // with a single entry.

  // no need to expand pre, since it is guaranteed to be free of brace-sets
  var pre = m.pre;
  var post = m.post.length
    ? expand$1(m.post, false)
    : [''];

  var N;

  if (isSequence) {
    var x = numeric(n[0]);
    var y = numeric(n[1]);
    var width = Math.max(n[0].length, n[1].length);
    var incr = n.length == 3
      ? Math.abs(numeric(n[2]))
      : 1;
    var test = lte;
    var reverse = y < x;
    if (reverse) {
      incr *= -1;
      test = gte;
    }
    var pad = n.some(isPadded);

    N = [];

    for (var i = x; test(i, y); i += incr) {
      var c;
      if (isAlphaSequence) {
        c = String.fromCharCode(i);
        if (c === '\\')
          c = '';
      } else {
        c = String(i);
        if (pad) {
          var need = width - c.length;
          if (need > 0) {
            var z = new Array(need + 1).join('0');
            if (i < 0)
              c = '-' + z + c.slice(1);
            else
              c = z + c;
          }
        }
      }
      N.push(c);
    }
  } else {
    N = concatMap(n, function(el) { return expand$1(el, false) });
  }

  for (var j = 0; j < N.length; j++) {
    for (var k = 0; k < post.length; k++) {
      var expansion = pre + N[j] + post[k];
      if (!isTop || isSequence || expansion)
        expansions.push(expansion);
    }
  }

  return expansions;
}

var minimatch_1 = minimatch$3;
minimatch$3.Minimatch = Minimatch$1;

var path$g = { sep: '/' };
try {
  path$g = require('path');
} catch (er) {}

var GLOBSTAR$1 = minimatch$3.GLOBSTAR = Minimatch$1.GLOBSTAR = {};
var expand = braceExpansion;

var plTypes = {
  '!': { open: '(?:(?!(?:', close: '))[^/]*?)'},
  '?': { open: '(?:', close: ')?' },
  '+': { open: '(?:', close: ')+' },
  '*': { open: '(?:', close: ')*' },
  '@': { open: '(?:', close: ')' }
};

// any single thing other than /
// don't need to escape / when using new RegExp()
var qmark = '[^/]';

// * => any number of characters
var star = qmark + '*?';

// ** when dots are allowed.  Anything goes, except .. and .
// not (^ or / followed by one or two dots followed by $ or /),
// followed by anything, any number of times.
var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?';

// not a ^ or / followed by a dot,
// followed by anything, any number of times.
var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?';

// characters that need to be escaped in RegExp.
var reSpecials = charSet('().*{}+?[]^$\\!');

// "abc" -> { a:true, b:true, c:true }
function charSet (s) {
  return s.split('').reduce(function (set, c) {
    set[c] = true;
    return set
  }, {})
}

// normalizes slashes.
var slashSplit = /\/+/;

minimatch$3.filter = filter;
function filter (pattern, options) {
  options = options || {};
  return function (p, i, list) {
    return minimatch$3(p, pattern, options)
  }
}

function ext (a, b) {
  a = a || {};
  b = b || {};
  var t = {};
  Object.keys(b).forEach(function (k) {
    t[k] = b[k];
  });
  Object.keys(a).forEach(function (k) {
    t[k] = a[k];
  });
  return t
}

minimatch$3.defaults = function (def) {
  if (!def || !Object.keys(def).length) return minimatch$3

  var orig = minimatch$3;

  var m = function minimatch (p, pattern, options) {
    return orig.minimatch(p, pattern, ext(def, options))
  };

  m.Minimatch = function Minimatch (pattern, options) {
    return new orig.Minimatch(pattern, ext(def, options))
  };

  return m
};

Minimatch$1.defaults = function (def) {
  if (!def || !Object.keys(def).length) return Minimatch$1
  return minimatch$3.defaults(def).Minimatch
};

function minimatch$3 (p, pattern, options) {
  if (typeof pattern !== 'string') {
    throw new TypeError('glob pattern string required')
  }

  if (!options) options = {};

  // shortcut: comments match nothing.
  if (!options.nocomment && pattern.charAt(0) === '#') {
    return false
  }

  // "" only matches ""
  if (pattern.trim() === '') return p === ''

  return new Minimatch$1(pattern, options).match(p)
}

function Minimatch$1 (pattern, options) {
  if (!(this instanceof Minimatch$1)) {
    return new Minimatch$1(pattern, options)
  }

  if (typeof pattern !== 'string') {
    throw new TypeError('glob pattern string required')
  }

  if (!options) options = {};
  pattern = pattern.trim();

  // windows support: need to use /, not \
  if (path$g.sep !== '/') {
    pattern = pattern.split(path$g.sep).join('/');
  }

  this.options = options;
  this.set = [];
  this.pattern = pattern;
  this.regexp = null;
  this.negate = false;
  this.comment = false;
  this.empty = false;

  // make the set of regexps etc.
  this.make();
}

Minimatch$1.prototype.debug = function () {};

Minimatch$1.prototype.make = make;
function make () {
  // don't do it more than once.
  if (this._made) return

  var pattern = this.pattern;
  var options = this.options;

  // empty patterns and comments match nothing.
  if (!options.nocomment && pattern.charAt(0) === '#') {
    this.comment = true;
    return
  }
  if (!pattern) {
    this.empty = true;
    return
  }

  // step 1: figure out negation, etc.
  this.parseNegate();

  // step 2: expand braces
  var set = this.globSet = this.braceExpand();

  if (options.debug) this.debug = console.error;

  this.debug(this.pattern, set);

  // step 3: now we have a set, so turn each one into a series of path-portion
  // matching patterns.
  // These will be regexps, except in the case of "**", which is
  // set to the GLOBSTAR object for globstar behavior,
  // and will not contain any / characters
  set = this.globParts = set.map(function (s) {
    return s.split(slashSplit)
  });

  this.debug(this.pattern, set);

  // glob --> regexps
  set = set.map(function (s, si, set) {
    return s.map(this.parse, this)
  }, this);

  this.debug(this.pattern, set);

  // filter out everything that didn't compile properly.
  set = set.filter(function (s) {
    return s.indexOf(false) === -1
  });

  this.debug(this.pattern, set);

  this.set = set;
}

Minimatch$1.prototype.parseNegate = parseNegate;
function parseNegate () {
  var pattern = this.pattern;
  var negate = false;
  var options = this.options;
  var negateOffset = 0;

  if (options.nonegate) return

  for (var i = 0, l = pattern.length
    ; i < l && pattern.charAt(i) === '!'
    ; i++) {
    negate = !negate;
    negateOffset++;
  }

  if (negateOffset) this.pattern = pattern.substr(negateOffset);
  this.negate = negate;
}

// Brace expansion:
// a{b,c}d -> abd acd
// a{b,}c -> abc ac
// a{0..3}d -> a0d a1d a2d a3d
// a{b,c{d,e}f}g -> abg acdfg acefg
// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
//
// Invalid sets are not expanded.
// a{2..}b -> a{2..}b
// a{b}c -> a{b}c
minimatch$3.braceExpand = function (pattern, options) {
  return braceExpand(pattern, options)
};

Minimatch$1.prototype.braceExpand = braceExpand;

function braceExpand (pattern, options) {
  if (!options) {
    if (this instanceof Minimatch$1) {
      options = this.options;
    } else {
      options = {};
    }
  }

  pattern = typeof pattern === 'undefined'
    ? this.pattern : pattern;

  if (typeof pattern === 'undefined') {
    throw new TypeError('undefined pattern')
  }

  if (options.nobrace ||
    !pattern.match(/\{.*\}/)) {
    // shortcut. no need to expand.
    return [pattern]
  }

  return expand(pattern)
}

// parse a component of the expanded set.
// At this point, no pattern may contain "/" in it
// so we're going to return a 2d array, where each entry is the full
// pattern, split on '/', and then turned into a regular expression.
// A regexp is made at the end which joins each array with an
// escaped /, and another full one which joins each regexp with |.
//
// Following the lead of Bash 4.1, note that "**" only has special meaning
// when it is the *only* thing in a path portion.  Otherwise, any series
// of * is equivalent to a single *.  Globstar behavior is enabled by
// default, and can be disabled by setting options.noglobstar.
Minimatch$1.prototype.parse = parse$d;
var SUBPARSE = {};
function parse$d (pattern, isSub) {
  if (pattern.length > 1024 * 64) {
    throw new TypeError('pattern is too long')
  }

  var options = this.options;

  // shortcuts
  if (!options.noglobstar && pattern === '**') return GLOBSTAR$1
  if (pattern === '') return ''

  var re = '';
  var hasMagic = !!options.nocase;
  var escaping = false;
  // ? => one single character
  var patternListStack = [];
  var negativeLists = [];
  var stateChar;
  var inClass = false;
  var reClassStart = -1;
  var classStart = -1;
  // . and .. never match anything that doesn't start with .,
  // even when options.dot is set.
  var patternStart = pattern.charAt(0) === '.' ? '' // anything
  // not (start or / followed by . or .. followed by / or end)
  : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))'
  : '(?!\\.)';
  var self = this;

  function clearStateChar () {
    if (stateChar) {
      // we had some state-tracking character
      // that wasn't consumed by this pass.
      switch (stateChar) {
        case '*':
          re += star;
          hasMagic = true;
        break
        case '?':
          re += qmark;
          hasMagic = true;
        break
        default:
          re += '\\' + stateChar;
        break
      }
      self.debug('clearStateChar %j %j', stateChar, re);
      stateChar = false;
    }
  }

  for (var i = 0, len = pattern.length, c
    ; (i < len) && (c = pattern.charAt(i))
    ; i++) {
    this.debug('%s\t%s %s %j', pattern, i, re, c);

    // skip over any that are escaped.
    if (escaping && reSpecials[c]) {
      re += '\\' + c;
      escaping = false;
      continue
    }

    switch (c) {
      case '/':
        // completely not allowed, even escaped.
        // Should already be path-split by now.
        return false

      case '\\':
        clearStateChar();
        escaping = true;
      continue

      // the various stateChar values
      // for the "extglob" stuff.
      case '?':
      case '*':
      case '+':
      case '@':
      case '!':
        this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c);

        // all of those are literals inside a class, except that
        // the glob [!a] means [^a] in regexp
        if (inClass) {
          this.debug('  in class');
          if (c === '!' && i === classStart + 1) c = '^';
          re += c;
          continue
        }

        // if we already have a stateChar, then it means
        // that there was something like ** or +? in there.
        // Handle the stateChar, then proceed with this one.
        self.debug('call clearStateChar %j', stateChar);
        clearStateChar();
        stateChar = c;
        // if extglob is disabled, then +(asdf|foo) isn't a thing.
        // just clear the statechar *now*, rather than even diving into
        // the patternList stuff.
        if (options.noext) clearStateChar();
      continue

      case '(':
        if (inClass) {
          re += '(';
          continue
        }

        if (!stateChar) {
          re += '\\(';
          continue
        }

        patternListStack.push({
          type: stateChar,
          start: i - 1,
          reStart: re.length,
          open: plTypes[stateChar].open,
          close: plTypes[stateChar].close
        });
        // negation is (?:(?!js)[^/]*)
        re += stateChar === '!' ? '(?:(?!(?:' : '(?:';
        this.debug('plType %j %j', stateChar, re);
        stateChar = false;
      continue

      case ')':
        if (inClass || !patternListStack.length) {
          re += '\\)';
          continue
        }

        clearStateChar();
        hasMagic = true;
        var pl = patternListStack.pop();
        // negation is (?:(?!js)[^/]*)
        // The others are (?:<pattern>)<type>
        re += pl.close;
        if (pl.type === '!') {
          negativeLists.push(pl);
        }
        pl.reEnd = re.length;
      continue

      case '|':
        if (inClass || !patternListStack.length || escaping) {
          re += '\\|';
          escaping = false;
          continue
        }

        clearStateChar();
        re += '|';
      continue

      // these are mostly the same in regexp and glob
      case '[':
        // swallow any state-tracking char before the [
        clearStateChar();

        if (inClass) {
          re += '\\' + c;
          continue
        }

        inClass = true;
        classStart = i;
        reClassStart = re.length;
        re += c;
      continue

      case ']':
        //  a right bracket shall lose its special
        //  meaning and represent itself in
        //  a bracket expression if it occurs
        //  first in the list.  -- POSIX.2 2.8.3.2
        if (i === classStart + 1 || !inClass) {
          re += '\\' + c;
          escaping = false;
          continue
        }

        // handle the case where we left a class open.
        // "[z-a]" is valid, equivalent to "\[z-a\]"
        if (inClass) {
          // split where the last [ was, make sure we don't have
          // an invalid re. if so, re-walk the contents of the
          // would-be class to re-translate any characters that
          // were passed through as-is
          // TODO: It would probably be faster to determine this
          // without a try/catch and a new RegExp, but it's tricky
          // to do safely.  For now, this is safe and works.
          var cs = pattern.substring(classStart + 1, i);
          try {
          } catch (er) {
            // not a valid class!
            var sp = this.parse(cs, SUBPARSE);
            re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]';
            hasMagic = hasMagic || sp[1];
            inClass = false;
            continue
          }
        }

        // finish up the class.
        hasMagic = true;
        inClass = false;
        re += c;
      continue

      default:
        // swallow any state char that wasn't consumed
        clearStateChar();

        if (escaping) {
          // no need
          escaping = false;
        } else if (reSpecials[c]
          && !(c === '^' && inClass)) {
          re += '\\';
        }

        re += c;

    } // switch
  } // for

  // handle the case where we left a class open.
  // "[abc" is valid, equivalent to "\[abc"
  if (inClass) {
    // split where the last [ was, and escape it
    // this is a huge pita.  We now have to re-walk
    // the contents of the would-be class to re-translate
    // any characters that were passed through as-is
    cs = pattern.substr(classStart + 1);
    sp = this.parse(cs, SUBPARSE);
    re = re.substr(0, reClassStart) + '\\[' + sp[0];
    hasMagic = hasMagic || sp[1];
  }

  // handle the case where we had a +( thing at the *end*
  // of the pattern.
  // each pattern list stack adds 3 chars, and we need to go through
  // and escape any | chars that were passed through as-is for the regexp.
  // Go through and escape them, taking care not to double-escape any
  // | chars that were already escaped.
  for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
    var tail = re.slice(pl.reStart + pl.open.length);
    this.debug('setting tail', re, pl);
    // maybe some even number of \, then maybe 1 \, followed by a |
    tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) {
      if (!$2) {
        // the | isn't already escaped, so escape it.
        $2 = '\\';
      }

      // need to escape all those slashes *again*, without escaping the
      // one that we need for escaping the | character.  As it works out,
      // escaping an even number of slashes can be done by simply repeating
      // it exactly after itself.  That's why this trick works.
      //
      // I am sorry that you have to see this.
      return $1 + $1 + $2 + '|'
    });

    this.debug('tail=%j\n   %s', tail, tail, pl, re);
    var t = pl.type === '*' ? star
      : pl.type === '?' ? qmark
      : '\\' + pl.type;

    hasMagic = true;
    re = re.slice(0, pl.reStart) + t + '\\(' + tail;
  }

  // handle trailing things that only matter at the very end.
  clearStateChar();
  if (escaping) {
    // trailing \\
    re += '\\\\';
  }

  // only need to apply the nodot start if the re starts with
  // something that could conceivably capture a dot
  var addPatternStart = false;
  switch (re.charAt(0)) {
    case '.':
    case '[':
    case '(': addPatternStart = true;
  }

  // Hack to work around lack of negative lookbehind in JS
  // A pattern like: *.!(x).!(y|z) needs to ensure that a name
  // like 'a.xyz.yz' doesn't match.  So, the first negative
  // lookahead, has to look ALL the way ahead, to the end of
  // the pattern.
  for (var n = negativeLists.length - 1; n > -1; n--) {
    var nl = negativeLists[n];

    var nlBefore = re.slice(0, nl.reStart);
    var nlFirst = re.slice(nl.reStart, nl.reEnd - 8);
    var nlLast = re.slice(nl.reEnd - 8, nl.reEnd);
    var nlAfter = re.slice(nl.reEnd);

    nlLast += nlAfter;

    // Handle nested stuff like *(*.js|!(*.json)), where open parens
    // mean that we should *not* include the ) in the bit that is considered
    // "after" the negated section.
    var openParensBefore = nlBefore.split('(').length - 1;
    var cleanAfter = nlAfter;
    for (i = 0; i < openParensBefore; i++) {
      cleanAfter = cleanAfter.replace(/\)[+*?]?/, '');
    }
    nlAfter = cleanAfter;

    var dollar = '';
    if (nlAfter === '' && isSub !== SUBPARSE) {
      dollar = '$';
    }
    var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast;
    re = newRe;
  }

  // if the re is not "" at this point, then we need to make sure
  // it doesn't match against an empty path part.
  // Otherwise a/* will match a/, which it should not.
  if (re !== '' && hasMagic) {
    re = '(?=.)' + re;
  }

  if (addPatternStart) {
    re = patternStart + re;
  }

  // parsing just a piece of a larger pattern.
  if (isSub === SUBPARSE) {
    return [re, hasMagic]
  }

  // skip the regexp for non-magical patterns
  // unescape anything in it, though, so that it'll be
  // an exact match against a file etc.
  if (!hasMagic) {
    return globUnescape(pattern)
  }

  var flags = options.nocase ? 'i' : '';
  try {
    var regExp = new RegExp('^' + re + '$', flags);
  } catch (er) {
    // If it was an invalid regular expression, then it can't match
    // anything.  This trick looks for a character after the end of
    // the string, which is of course impossible, except in multi-line
    // mode, but it's not a /m regex.
    return new RegExp('$.')
  }

  regExp._glob = pattern;
  regExp._src = re;

  return regExp
}

minimatch$3.makeRe = function (pattern, options) {
  return new Minimatch$1(pattern, options || {}).makeRe()
};

Minimatch$1.prototype.makeRe = makeRe;
function makeRe () {
  if (this.regexp || this.regexp === false) return this.regexp

  // at this point, this.set is a 2d array of partial
  // pattern strings, or "**".
  //
  // It's better to use .match().  This function shouldn't
  // be used, really, but it's pretty convenient sometimes,
  // when you just want to work with a regex.
  var set = this.set;

  if (!set.length) {
    this.regexp = false;
    return this.regexp
  }
  var options = this.options;

  var twoStar = options.noglobstar ? star
    : options.dot ? twoStarDot
    : twoStarNoDot;
  var flags = options.nocase ? 'i' : '';

  var re = set.map(function (pattern) {
    return pattern.map(function (p) {
      return (p === GLOBSTAR$1) ? twoStar
      : (typeof p === 'string') ? regExpEscape(p)
      : p._src
    }).join('\\\/')
  }).join('|');

  // must match entire pattern
  // ending in a * or ** will make it less strict.
  re = '^(?:' + re + ')$';

  // can match anything, as long as it's not this.
  if (this.negate) re = '^(?!' + re + ').*$';

  try {
    this.regexp = new RegExp(re, flags);
  } catch (ex) {
    this.regexp = false;
  }
  return this.regexp
}

minimatch$3.match = function (list, pattern, options) {
  options = options || {};
  var mm = new Minimatch$1(pattern, options);
  list = list.filter(function (f) {
    return mm.match(f)
  });
  if (mm.options.nonull && !list.length) {
    list.push(pattern);
  }
  return list
};

Minimatch$1.prototype.match = match;
function match (f, partial) {
  this.debug('match', f, this.pattern);
  // short-circuit in the case of busted things.
  // comments, etc.
  if (this.comment) return false
  if (this.empty) return f === ''

  if (f === '/' && partial) return true

  var options = this.options;

  // windows: need to use /, not \
  if (path$g.sep !== '/') {
    f = f.split(path$g.sep).join('/');
  }

  // treat the test path as a set of pathparts.
  f = f.split(slashSplit);
  this.debug(this.pattern, 'split', f);

  // just ONE of the pattern sets in this.set needs to match
  // in order for it to be valid.  If negating, then just one
  // match means that we have failed.
  // Either way, return on the first hit.

  var set = this.set;
  this.debug(this.pattern, 'set', set);

  // Find the basename of the path by looking for the last non-empty segment
  var filename;
  var i;
  for (i = f.length - 1; i >= 0; i--) {
    filename = f[i];
    if (filename) break
  }

  for (i = 0; i < set.length; i++) {
    var pattern = set[i];
    var file = f;
    if (options.matchBase && pattern.length === 1) {
      file = [filename];
    }
    var hit = this.matchOne(file, pattern, partial);
    if (hit) {
      if (options.flipNegate) return true
      return !this.negate
    }
  }

  // didn't get any hits.  this is success if it's a negative
  // pattern, failure otherwise.
  if (options.flipNegate) return false
  return this.negate
}

// set partial to true to test if, for example,
// "/a/b" matches the start of "/*/b/*/d"
// Partial means, if you run out of file before you run
// out of pattern, then that's fine, as long as all
// the parts match.
Minimatch$1.prototype.matchOne = function (file, pattern, partial) {
  var options = this.options;

  this.debug('matchOne',
    { 'this': this, file: file, pattern: pattern });

  this.debug('matchOne', file.length, pattern.length);

  for (var fi = 0,
      pi = 0,
      fl = file.length,
      pl = pattern.length
      ; (fi < fl) && (pi < pl)
      ; fi++, pi++) {
    this.debug('matchOne loop');
    var p = pattern[pi];
    var f = file[fi];

    this.debug(pattern, p, f);

    // should be impossible.
    // some invalid regexp stuff in the set.
    if (p === false) return false

    if (p === GLOBSTAR$1) {
      this.debug('GLOBSTAR', [pattern, p, f]);

      // "**"
      // a/**/b/**/c would match the following:
      // a/b/x/y/z/c
      // a/x/y/z/b/c
      // a/b/x/b/x/c
      // a/b/c
      // To do this, take the rest of the pattern after
      // the **, and see if it would match the file remainder.
      // If so, return success.
      // If not, the ** "swallows" a segment, and try again.
      // This is recursively awful.
      //
      // a/**/b/**/c matching a/b/x/y/z/c
      // - a matches a
      // - doublestar
      //   - matchOne(b/x/y/z/c, b/**/c)
      //     - b matches b
      //     - doublestar
      //       - matchOne(x/y/z/c, c) -> no
      //       - matchOne(y/z/c, c) -> no
      //       - matchOne(z/c, c) -> no
      //       - matchOne(c, c) yes, hit
      var fr = fi;
      var pr = pi + 1;
      if (pr === pl) {
        this.debug('** at the end');
        // a ** at the end will just swallow the rest.
        // We have found a match.
        // however, it will not swallow /.x, unless
        // options.dot is set.
        // . and .. are *never* matched by **, for explosively
        // exponential reasons.
        for (; fi < fl; fi++) {
          if (file[fi] === '.' || file[fi] === '..' ||
            (!options.dot && file[fi].charAt(0) === '.')) return false
        }
        return true
      }

      // ok, let's see if we can swallow whatever we can.
      while (fr < fl) {
        var swallowee = file[fr];

        this.debug('\nglobstar while', file, fr, pattern, pr, swallowee);

        // XXX remove this slice.  Just pass the start index.
        if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
          this.debug('globstar found match!', fr, fl, swallowee);
          // found a match.
          return true
        } else {
          // can't swallow "." or ".." ever.
          // can only swallow ".foo" when explicitly asked.
          if (swallowee === '.' || swallowee === '..' ||
            (!options.dot && swallowee.charAt(0) === '.')) {
            this.debug('dot detected!', file, fr, pattern, pr);
            break
          }

          // ** swallows a segment, and continue.
          this.debug('globstar swallow a segment, and continue');
          fr++;
        }
      }

      // no match was found.
      // However, in partial mode, we can't say this is necessarily over.
      // If there's more *pattern* left, then
      if (partial) {
        // ran out of file
        this.debug('\n>>> no match, partial?', file, fr, pattern, pr);
        if (fr === fl) return true
      }
      return false
    }

    // something other than **
    // non-magic patterns just have to match exactly
    // patterns with magic have been turned into regexps.
    var hit;
    if (typeof p === 'string') {
      if (options.nocase) {
        hit = f.toLowerCase() === p.toLowerCase();
      } else {
        hit = f === p;
      }
      this.debug('string match', p, f, hit);
    } else {
      hit = f.match(p);
      this.debug('pattern match', p, f, hit);
    }

    if (!hit) return false
  }

  // Note: ending in / means that we'll get a final ""
  // at the end of the pattern.  This can only match a
  // corresponding "" at the end of the file.
  // If the file ends in /, then it can only match a
  // a pattern that ends in /, unless the pattern just
  // doesn't have any more for it. But, a/b/ should *not*
  // match "a/b/*", even though "" matches against the
  // [^/]*? pattern, except in partial mode, where it might
  // simply not be reached yet.
  // However, a/b/ should still satisfy a/*

  // now either we fell off the end of the pattern, or we're done.
  if (fi === fl && pi === pl) {
    // ran out of pattern and filename at the same time.
    // an exact hit!
    return true
  } else if (fi === fl) {
    // ran out of file, but still had pattern left.
    // this is ok if we're doing the match as part of
    // a glob fs traversal.
    return partial
  } else if (pi === pl) {
    // ran out of pattern, still have file left.
    // this is only acceptable if we're on the very last
    // empty segment of a file with a trailing slash.
    // a/* should match a/b/
    var emptyFileEnd = (fi === fl - 1) && (file[fi] === '');
    return emptyFileEnd
  }

  // should be unreachable.
  throw new Error('wtf?')
};

// replace stuff like \* with *
function globUnescape (s) {
  return s.replace(/\\(.)/g, '$1')
}

function regExpEscape (s) {
  return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')
}

var inherits$1 = {exports: {}};

var inherits_browser = {exports: {}};

if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  inherits_browser.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor;
      ctor.prototype = Object.create(superCtor.prototype, {
        constructor: {
          value: ctor,
          enumerable: false,
          writable: true,
          configurable: true
        }
      });
    }
  };
} else {
  // old school shim for old browsers
  inherits_browser.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor;
      var TempCtor = function () {};
      TempCtor.prototype = superCtor.prototype;
      ctor.prototype = new TempCtor();
      ctor.prototype.constructor = ctor;
    }
  };
}

try {
  var util$6 = require('util');
  /* istanbul ignore next */
  if (typeof util$6.inherits !== 'function') throw '';
  inherits$1.exports = util$6.inherits;
} catch (e) {
  /* istanbul ignore next */
  inherits$1.exports = inherits_browser.exports;
}

var pathIsAbsolute = {exports: {}};

function posix(path) {
	return path.charAt(0) === '/';
}

function win32(path) {
	// https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56
	var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
	var result = splitDeviceRe.exec(path);
	var device = result[1] || '';
	var isUnc = Boolean(device && device.charAt(1) !== ':');

	// UNC paths are always absolute
	return Boolean(result[2] || isUnc);
}

pathIsAbsolute.exports = process.platform === 'win32' ? win32 : posix;
pathIsAbsolute.exports.posix = posix;
pathIsAbsolute.exports.win32 = win32;

var common$6 = {};

common$6.setopts = setopts$2;
common$6.ownProp = ownProp$2;
common$6.makeAbs = makeAbs;
common$6.finish = finish;
common$6.mark = mark;
common$6.isIgnored = isIgnored$2;
common$6.childrenIgnored = childrenIgnored$2;

function ownProp$2 (obj, field) {
  return Object.prototype.hasOwnProperty.call(obj, field)
}

var fs$f = fs__default;
var path$f = path__default;
var minimatch$2 = minimatch_1;
var isAbsolute$2 = pathIsAbsolute.exports;
var Minimatch = minimatch$2.Minimatch;

function alphasort (a, b) {
  return a.localeCompare(b, 'en')
}

function setupIgnores (self, options) {
  self.ignore = options.ignore || [];

  if (!Array.isArray(self.ignore))
    self.ignore = [self.ignore];

  if (self.ignore.length) {
    self.ignore = self.ignore.map(ignoreMap);
  }
}

// ignore patterns are always in dot:true mode.
function ignoreMap (pattern) {
  var gmatcher = null;
  if (pattern.slice(-3) === '/**') {
    var gpattern = pattern.replace(/(\/\*\*)+$/, '');
    gmatcher = new Minimatch(gpattern, { dot: true });
  }

  return {
    matcher: new Minimatch(pattern, { dot: true }),
    gmatcher: gmatcher
  }
}

function setopts$2 (self, pattern, options) {
  if (!options)
    options = {};

  // base-matching: just use globstar for that.
  if (options.matchBase && -1 === pattern.indexOf("/")) {
    if (options.noglobstar) {
      throw new Error("base matching requires globstar")
    }
    pattern = "**/" + pattern;
  }

  self.silent = !!options.silent;
  self.pattern = pattern;
  self.strict = options.strict !== false;
  self.realpath = !!options.realpath;
  self.realpathCache = options.realpathCache || Object.create(null);
  self.follow = !!options.follow;
  self.dot = !!options.dot;
  self.mark = !!options.mark;
  self.nodir = !!options.nodir;
  if (self.nodir)
    self.mark = true;
  self.sync = !!options.sync;
  self.nounique = !!options.nounique;
  self.nonull = !!options.nonull;
  self.nosort = !!options.nosort;
  self.nocase = !!options.nocase;
  self.stat = !!options.stat;
  self.noprocess = !!options.noprocess;
  self.absolute = !!options.absolute;
  self.fs = options.fs || fs$f;

  self.maxLength = options.maxLength || Infinity;
  self.cache = options.cache || Object.create(null);
  self.statCache = options.statCache || Object.create(null);
  self.symlinks = options.symlinks || Object.create(null);

  setupIgnores(self, options);

  self.changedCwd = false;
  var cwd = process.cwd();
  if (!ownProp$2(options, "cwd"))
    self.cwd = cwd;
  else {
    self.cwd = path$f.resolve(options.cwd);
    self.changedCwd = self.cwd !== cwd;
  }

  self.root = options.root || path$f.resolve(self.cwd, "/");
  self.root = path$f.resolve(self.root);
  if (process.platform === "win32")
    self.root = self.root.replace(/\\/g, "/");

  // TODO: is an absolute `cwd` supposed to be resolved against `root`?
  // e.g. { cwd: '/test', root: __dirname } === path.join(__dirname, '/test')
  self.cwdAbs = isAbsolute$2(self.cwd) ? self.cwd : makeAbs(self, self.cwd);
  if (process.platform === "win32")
    self.cwdAbs = self.cwdAbs.replace(/\\/g, "/");
  self.nomount = !!options.nomount;

  // disable comments and negation in Minimatch.
  // Note that they are not supported in Glob itself anyway.
  options.nonegate = true;
  options.nocomment = true;

  self.minimatch = new Minimatch(pattern, options);
  self.options = self.minimatch.options;
}

function finish (self) {
  var nou = self.nounique;
  var all = nou ? [] : Object.create(null);

  for (var i = 0, l = self.matches.length; i < l; i ++) {
    var matches = self.matches[i];
    if (!matches || Object.keys(matches).length === 0) {
      if (self.nonull) {
        // do like the shell, and spit out the literal glob
        var literal = self.minimatch.globSet[i];
        if (nou)
          all.push(literal);
        else
          all[literal] = true;
      }
    } else {
      // had matches
      var m = Object.keys(matches);
      if (nou)
        all.push.apply(all, m);
      else
        m.forEach(function (m) {
          all[m] = true;
        });
    }
  }

  if (!nou)
    all = Object.keys(all);

  if (!self.nosort)
    all = all.sort(alphasort);

  // at *some* point we statted all of these
  if (self.mark) {
    for (var i = 0; i < all.length; i++) {
      all[i] = self._mark(all[i]);
    }
    if (self.nodir) {
      all = all.filter(function (e) {
        var notDir = !(/\/$/.test(e));
        var c = self.cache[e] || self.cache[makeAbs(self, e)];
        if (notDir && c)
          notDir = c !== 'DIR' && !Array.isArray(c);
        return notDir
      });
    }
  }

  if (self.ignore.length)
    all = all.filter(function(m) {
      return !isIgnored$2(self, m)
    });

  self.found = all;
}

function mark (self, p) {
  var abs = makeAbs(self, p);
  var c = self.cache[abs];
  var m = p;
  if (c) {
    var isDir = c === 'DIR' || Array.isArray(c);
    var slash = p.slice(-1) === '/';

    if (isDir && !slash)
      m += '/';
    else if (!isDir && slash)
      m = m.slice(0, -1);

    if (m !== p) {
      var mabs = makeAbs(self, m);
      self.statCache[mabs] = self.statCache[abs];
      self.cache[mabs] = self.cache[abs];
    }
  }

  return m
}

// lotta situps...
function makeAbs (self, f) {
  var abs = f;
  if (f.charAt(0) === '/') {
    abs = path$f.join(self.root, f);
  } else if (isAbsolute$2(f) || f === '') {
    abs = f;
  } else if (self.changedCwd) {
    abs = path$f.resolve(self.cwd, f);
  } else {
    abs = path$f.resolve(f);
  }

  if (process.platform === 'win32')
    abs = abs.replace(/\\/g, '/');

  return abs
}


// Return true, if pattern ends with globstar '**', for the accompanying parent directory.
// Ex:- If node_modules/** is the pattern, add 'node_modules' to ignore list along with it's contents
function isIgnored$2 (self, path) {
  if (!self.ignore.length)
    return false

  return self.ignore.some(function(item) {
    return item.matcher.match(path) || !!(item.gmatcher && item.gmatcher.match(path))
  })
}

function childrenIgnored$2 (self, path) {
  if (!self.ignore.length)
    return false

  return self.ignore.some(function(item) {
    return !!(item.gmatcher && item.gmatcher.match(path))
  })
}

var sync$3 = globSync$1;
globSync$1.GlobSync = GlobSync$1;

var rp$1 = fs_realpath;
var minimatch$1 = minimatch_1;
var path$e = path__default;
var assert$3 = require$$5__default;
var isAbsolute$1 = pathIsAbsolute.exports;
var common$5 = common$6;
var setopts$1 = common$5.setopts;
var ownProp$1 = common$5.ownProp;
var childrenIgnored$1 = common$5.childrenIgnored;
var isIgnored$1 = common$5.isIgnored;

function globSync$1 (pattern, options) {
  if (typeof options === 'function' || arguments.length === 3)
    throw new TypeError('callback provided to sync glob\n'+
                        'See: https://github.com/isaacs/node-glob/issues/167')

  return new GlobSync$1(pattern, options).found
}

function GlobSync$1 (pattern, options) {
  if (!pattern)
    throw new Error('must provide pattern')

  if (typeof options === 'function' || arguments.length === 3)
    throw new TypeError('callback provided to sync glob\n'+
                        'See: https://github.com/isaacs/node-glob/issues/167')

  if (!(this instanceof GlobSync$1))
    return new GlobSync$1(pattern, options)

  setopts$1(this, pattern, options);

  if (this.noprocess)
    return this

  var n = this.minimatch.set.length;
  this.matches = new Array(n);
  for (var i = 0; i < n; i ++) {
    this._process(this.minimatch.set[i], i, false);
  }
  this._finish();
}

GlobSync$1.prototype._finish = function () {
  assert$3(this instanceof GlobSync$1);
  if (this.realpath) {
    var self = this;
    this.matches.forEach(function (matchset, index) {
      var set = self.matches[index] = Object.create(null);
      for (var p in matchset) {
        try {
          p = self._makeAbs(p);
          var real = rp$1.realpathSync(p, self.realpathCache);
          set[real] = true;
        } catch (er) {
          if (er.syscall === 'stat')
            set[self._makeAbs(p)] = true;
          else
            throw er
        }
      }
    });
  }
  common$5.finish(this);
};


GlobSync$1.prototype._process = function (pattern, index, inGlobStar) {
  assert$3(this instanceof GlobSync$1);

  // Get the first [n] parts of pattern that are all strings.
  var n = 0;
  while (typeof pattern[n] === 'string') {
    n ++;
  }
  // now n is the index of the first one that is *not* a string.

  // See if there's anything else
  var prefix;
  switch (n) {
    // if not, then this is rather simple
    case pattern.length:
      this._processSimple(pattern.join('/'), index);
      return

    case 0:
      // pattern *starts* with some non-trivial item.
      // going to readdir(cwd), but not include the prefix in matches.
      prefix = null;
      break

    default:
      // pattern has some string bits in the front.
      // whatever it starts with, whether that's 'absolute' like /foo/bar,
      // or 'relative' like '../baz'
      prefix = pattern.slice(0, n).join('/');
      break
  }

  var remain = pattern.slice(n);

  // get the list of entries.
  var read;
  if (prefix === null)
    read = '.';
  else if (isAbsolute$1(prefix) || isAbsolute$1(pattern.join('/'))) {
    if (!prefix || !isAbsolute$1(prefix))
      prefix = '/' + prefix;
    read = prefix;
  } else
    read = prefix;

  var abs = this._makeAbs(read);

  //if ignored, skip processing
  if (childrenIgnored$1(this, read))
    return

  var isGlobStar = remain[0] === minimatch$1.GLOBSTAR;
  if (isGlobStar)
    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar);
  else
    this._processReaddir(prefix, read, abs, remain, index, inGlobStar);
};


GlobSync$1.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar) {
  var entries = this._readdir(abs, inGlobStar);

  // if the abs isn't a dir, then nothing can match!
  if (!entries)
    return

  // It will only match dot entries if it starts with a dot, or if
  // dot is set.  Stuff like @(.foo|.bar) isn't allowed.
  var pn = remain[0];
  var negate = !!this.minimatch.negate;
  var rawGlob = pn._glob;
  var dotOk = this.dot || rawGlob.charAt(0) === '.';

  var matchedEntries = [];
  for (var i = 0; i < entries.length; i++) {
    var e = entries[i];
    if (e.charAt(0) !== '.' || dotOk) {
      var m;
      if (negate && !prefix) {
        m = !e.match(pn);
      } else {
        m = e.match(pn);
      }
      if (m)
        matchedEntries.push(e);
    }
  }

  var len = matchedEntries.length;
  // If there are no matched entries, then nothing matches.
  if (len === 0)
    return

  // if this is the last remaining pattern bit, then no need for
  // an additional stat *unless* the user has specified mark or
  // stat explicitly.  We know they exist, since readdir returned
  // them.

  if (remain.length === 1 && !this.mark && !this.stat) {
    if (!this.matches[index])
      this.matches[index] = Object.create(null);

    for (var i = 0; i < len; i ++) {
      var e = matchedEntries[i];
      if (prefix) {
        if (prefix.slice(-1) !== '/')
          e = prefix + '/' + e;
        else
          e = prefix + e;
      }

      if (e.charAt(0) === '/' && !this.nomount) {
        e = path$e.join(this.root, e);
      }
      this._emitMatch(index, e);
    }
    // This was the last one, and no stats were needed
    return
  }

  // now test all matched entries as stand-ins for that part
  // of the pattern.
  remain.shift();
  for (var i = 0; i < len; i ++) {
    var e = matchedEntries[i];
    var newPattern;
    if (prefix)
      newPattern = [prefix, e];
    else
      newPattern = [e];
    this._process(newPattern.concat(remain), index, inGlobStar);
  }
};


GlobSync$1.prototype._emitMatch = function (index, e) {
  if (isIgnored$1(this, e))
    return

  var abs = this._makeAbs(e);

  if (this.mark)
    e = this._mark(e);

  if (this.absolute) {
    e = abs;
  }

  if (this.matches[index][e])
    return

  if (this.nodir) {
    var c = this.cache[abs];
    if (c === 'DIR' || Array.isArray(c))
      return
  }

  this.matches[index][e] = true;

  if (this.stat)
    this._stat(e);
};


GlobSync$1.prototype._readdirInGlobStar = function (abs) {
  // follow all symlinked directories forever
  // just proceed as if this is a non-globstar situation
  if (this.follow)
    return this._readdir(abs, false)

  var entries;
  var lstat;
  try {
    lstat = this.fs.lstatSync(abs);
  } catch (er) {
    if (er.code === 'ENOENT') {
      // lstat failed, doesn't exist
      return null
    }
  }

  var isSym = lstat && lstat.isSymbolicLink();
  this.symlinks[abs] = isSym;

  // If it's not a symlink or a dir, then it's definitely a regular file.
  // don't bother doing a readdir in that case.
  if (!isSym && lstat && !lstat.isDirectory())
    this.cache[abs] = 'FILE';
  else
    entries = this._readdir(abs, false);

  return entries
};

GlobSync$1.prototype._readdir = function (abs, inGlobStar) {

  if (inGlobStar && !ownProp$1(this.symlinks, abs))
    return this._readdirInGlobStar(abs)

  if (ownProp$1(this.cache, abs)) {
    var c = this.cache[abs];
    if (!c || c === 'FILE')
      return null

    if (Array.isArray(c))
      return c
  }

  try {
    return this._readdirEntries(abs, this.fs.readdirSync(abs))
  } catch (er) {
    this._readdirError(abs, er);
    return null
  }
};

GlobSync$1.prototype._readdirEntries = function (abs, entries) {
  // if we haven't asked to stat everything, then just
  // assume that everything in there exists, so we can avoid
  // having to stat it a second time.
  if (!this.mark && !this.stat) {
    for (var i = 0; i < entries.length; i ++) {
      var e = entries[i];
      if (abs === '/')
        e = abs + e;
      else
        e = abs + '/' + e;
      this.cache[e] = true;
    }
  }

  this.cache[abs] = entries;

  // mark and cache dir-ness
  return entries
};

GlobSync$1.prototype._readdirError = function (f, er) {
  // handle errors, and cache the information
  switch (er.code) {
    case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
    case 'ENOTDIR': // totally normal. means it *does* exist.
      var abs = this._makeAbs(f);
      this.cache[abs] = 'FILE';
      if (abs === this.cwdAbs) {
        var error = new Error(er.code + ' invalid cwd ' + this.cwd);
        error.path = this.cwd;
        error.code = er.code;
        throw error
      }
      break

    case 'ENOENT': // not terribly unusual
    case 'ELOOP':
    case 'ENAMETOOLONG':
    case 'UNKNOWN':
      this.cache[this._makeAbs(f)] = false;
      break

    default: // some unusual error.  Treat as failure.
      this.cache[this._makeAbs(f)] = false;
      if (this.strict)
        throw er
      if (!this.silent)
        console.error('glob error', er);
      break
  }
};

GlobSync$1.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar) {

  var entries = this._readdir(abs, inGlobStar);

  // no entries means not a dir, so it can never have matches
  // foo.txt/** doesn't match foo.txt
  if (!entries)
    return

  // test without the globstar, and with every child both below
  // and replacing the globstar.
  var remainWithoutGlobStar = remain.slice(1);
  var gspref = prefix ? [ prefix ] : [];
  var noGlobStar = gspref.concat(remainWithoutGlobStar);

  // the noGlobStar pattern exits the inGlobStar state
  this._process(noGlobStar, index, false);

  var len = entries.length;
  var isSym = this.symlinks[abs];

  // If it's a symlink, and we're in a globstar, then stop
  if (isSym && inGlobStar)
    return

  for (var i = 0; i < len; i++) {
    var e = entries[i];
    if (e.charAt(0) === '.' && !this.dot)
      continue

    // these two cases enter the inGlobStar state
    var instead = gspref.concat(entries[i], remainWithoutGlobStar);
    this._process(instead, index, true);

    var below = gspref.concat(entries[i], remain);
    this._process(below, index, true);
  }
};

GlobSync$1.prototype._processSimple = function (prefix, index) {
  // XXX review this.  Shouldn't it be doing the mounting etc
  // before doing stat?  kinda weird?
  var exists = this._stat(prefix);

  if (!this.matches[index])
    this.matches[index] = Object.create(null);

  // If it doesn't exist, then just mark the lack of results
  if (!exists)
    return

  if (prefix && isAbsolute$1(prefix) && !this.nomount) {
    var trail = /[\/\\]$/.test(prefix);
    if (prefix.charAt(0) === '/') {
      prefix = path$e.join(this.root, prefix);
    } else {
      prefix = path$e.resolve(this.root, prefix);
      if (trail)
        prefix += '/';
    }
  }

  if (process.platform === 'win32')
    prefix = prefix.replace(/\\/g, '/');

  // Mark this as a match
  this._emitMatch(index, prefix);
};

// Returns either 'DIR', 'FILE', or false
GlobSync$1.prototype._stat = function (f) {
  var abs = this._makeAbs(f);
  var needDir = f.slice(-1) === '/';

  if (f.length > this.maxLength)
    return false

  if (!this.stat && ownProp$1(this.cache, abs)) {
    var c = this.cache[abs];

    if (Array.isArray(c))
      c = 'DIR';

    // It exists, but maybe not how we need it
    if (!needDir || c === 'DIR')
      return c

    if (needDir && c === 'FILE')
      return false

    // otherwise we have to stat, because maybe c=true
    // if we know it exists, but not what it is.
  }
  var stat = this.statCache[abs];
  if (!stat) {
    var lstat;
    try {
      lstat = this.fs.lstatSync(abs);
    } catch (er) {
      if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
        this.statCache[abs] = false;
        return false
      }
    }

    if (lstat && lstat.isSymbolicLink()) {
      try {
        stat = this.fs.statSync(abs);
      } catch (er) {
        stat = lstat;
      }
    } else {
      stat = lstat;
    }
  }

  this.statCache[abs] = stat;

  var c = true;
  if (stat)
    c = stat.isDirectory() ? 'DIR' : 'FILE';

  this.cache[abs] = this.cache[abs] || c;

  if (needDir && c === 'FILE')
    return false

  return c
};

GlobSync$1.prototype._mark = function (p) {
  return common$5.mark(this, p)
};

GlobSync$1.prototype._makeAbs = function (f) {
  return common$5.makeAbs(this, f)
};

// Returns a wrapper function that returns a wrapped callback
// The wrapper function should do some stuff, and return a
// presumably different callback function.
// This makes sure that own properties are retained, so that
// decorations and such are not lost along the way.
var wrappy_1 = wrappy$2;
function wrappy$2 (fn, cb) {
  if (fn && cb) return wrappy$2(fn)(cb)

  if (typeof fn !== 'function')
    throw new TypeError('need wrapper function')

  Object.keys(fn).forEach(function (k) {
    wrapper[k] = fn[k];
  });

  return wrapper

  function wrapper() {
    var args = new Array(arguments.length);
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }
    var ret = fn.apply(this, args);
    var cb = args[args.length-1];
    if (typeof ret === 'function' && ret !== cb) {
      Object.keys(cb).forEach(function (k) {
        ret[k] = cb[k];
      });
    }
    return ret
  }
}

var once$3 = {exports: {}};

var wrappy$1 = wrappy_1;
once$3.exports = wrappy$1(once$2);
once$3.exports.strict = wrappy$1(onceStrict);

once$2.proto = once$2(function () {
  Object.defineProperty(Function.prototype, 'once', {
    value: function () {
      return once$2(this)
    },
    configurable: true
  });

  Object.defineProperty(Function.prototype, 'onceStrict', {
    value: function () {
      return onceStrict(this)
    },
    configurable: true
  });
});

function once$2 (fn) {
  var f = function () {
    if (f.called) return f.value
    f.called = true;
    return f.value = fn.apply(this, arguments)
  };
  f.called = false;
  return f
}

function onceStrict (fn) {
  var f = function () {
    if (f.called)
      throw new Error(f.onceError)
    f.called = true;
    return f.value = fn.apply(this, arguments)
  };
  var name = fn.name || 'Function wrapped with `once`';
  f.onceError = name + " shouldn't be called more than once";
  f.called = false;
  return f
}

var wrappy = wrappy_1;
var reqs = Object.create(null);
var once$1 = once$3.exports;

var inflight_1 = wrappy(inflight$1);

function inflight$1 (key, cb) {
  if (reqs[key]) {
    reqs[key].push(cb);
    return null
  } else {
    reqs[key] = [cb];
    return makeres(key)
  }
}

function makeres (key) {
  return once$1(function RES () {
    var cbs = reqs[key];
    var len = cbs.length;
    var args = slice(arguments);

    // XXX It's somewhat ambiguous whether a new callback added in this
    // pass should be queued for later execution if something in the
    // list of callbacks throws, or if it should just be discarded.
    // However, it's such an edge case that it hardly matters, and either
    // choice is likely as surprising as the other.
    // As it happens, we do go ahead and schedule it for later execution.
    try {
      for (var i = 0; i < len; i++) {
        cbs[i].apply(null, args);
      }
    } finally {
      if (cbs.length > len) {
        // added more in the interim.
        // de-zalgo, just in case, but don't call again.
        cbs.splice(0, len);
        process.nextTick(function () {
          RES.apply(null, args);
        });
      } else {
        delete reqs[key];
      }
    }
  })
}

function slice (args) {
  var length = args.length;
  var array = [];

  for (var i = 0; i < length; i++) array[i] = args[i];
  return array
}

// Approach:
//
// 1. Get the minimatch set
// 2. For each pattern in the set, PROCESS(pattern, false)
// 3. Store matches per-set, then uniq them
//
// PROCESS(pattern, inGlobStar)
// Get the first [n] items from pattern that are all strings
// Join these together.  This is PREFIX.
//   If there is no more remaining, then stat(PREFIX) and
//   add to matches if it succeeds.  END.
//
// If inGlobStar and PREFIX is symlink and points to dir
//   set ENTRIES = []
// else readdir(PREFIX) as ENTRIES
//   If fail, END
//
// with ENTRIES
//   If pattern[n] is GLOBSTAR
//     // handle the case where the globstar match is empty
//     // by pruning it out, and testing the resulting pattern
//     PROCESS(pattern[0..n] + pattern[n+1 .. $], false)
//     // handle other cases.
//     for ENTRY in ENTRIES (not dotfiles)
//       // attach globstar + tail onto the entry
//       // Mark that this entry is a globstar match
//       PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true)
//
//   else // not globstar
//     for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot)
//       Test ENTRY against pattern[n]
//       If fails, continue
//       If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $])
//
// Caveat:
//   Cache all stats and readdirs results to minimize syscall.  Since all
//   we ever care about is existence and directory-ness, we can just keep
//   `true` for files, and [children,...] for directories, or `false` for
//   things that don't exist.

var glob_1 = glob;

var rp = fs_realpath;
var minimatch = minimatch_1;
var inherits = inherits$1.exports;
var EE$1 = require$$0__default$5.EventEmitter;
var path$d = path__default;
var assert$2 = require$$5__default;
var isAbsolute = pathIsAbsolute.exports;
var globSync = sync$3;
var common$4 = common$6;
var setopts = common$4.setopts;
var ownProp = common$4.ownProp;
var inflight = inflight_1;
var childrenIgnored = common$4.childrenIgnored;
var isIgnored = common$4.isIgnored;

var once = once$3.exports;

function glob (pattern, options, cb) {
  if (typeof options === 'function') cb = options, options = {};
  if (!options) options = {};

  if (options.sync) {
    if (cb)
      throw new TypeError('callback provided to sync glob')
    return globSync(pattern, options)
  }

  return new Glob(pattern, options, cb)
}

glob.sync = globSync;
var GlobSync = glob.GlobSync = globSync.GlobSync;

// old api surface
glob.glob = glob;

function extend (origin, add) {
  if (add === null || typeof add !== 'object') {
    return origin
  }

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin
}

glob.hasMagic = function (pattern, options_) {
  var options = extend({}, options_);
  options.noprocess = true;

  var g = new Glob(pattern, options);
  var set = g.minimatch.set;

  if (!pattern)
    return false

  if (set.length > 1)
    return true

  for (var j = 0; j < set[0].length; j++) {
    if (typeof set[0][j] !== 'string')
      return true
  }

  return false
};

glob.Glob = Glob;
inherits(Glob, EE$1);
function Glob (pattern, options, cb) {
  if (typeof options === 'function') {
    cb = options;
    options = null;
  }

  if (options && options.sync) {
    if (cb)
      throw new TypeError('callback provided to sync glob')
    return new GlobSync(pattern, options)
  }

  if (!(this instanceof Glob))
    return new Glob(pattern, options, cb)

  setopts(this, pattern, options);
  this._didRealPath = false;

  // process each pattern in the minimatch set
  var n = this.minimatch.set.length;

  // The matches are stored as {<filename>: true,...} so that
  // duplicates are automagically pruned.
  // Later, we do an Object.keys() on these.
  // Keep them as a list so we can fill in when nonull is set.
  this.matches = new Array(n);

  if (typeof cb === 'function') {
    cb = once(cb);
    this.on('error', cb);
    this.on('end', function (matches) {
      cb(null, matches);
    });
  }

  var self = this;
  this._processing = 0;

  this._emitQueue = [];
  this._processQueue = [];
  this.paused = false;

  if (this.noprocess)
    return this

  if (n === 0)
    return done()

  var sync = true;
  for (var i = 0; i < n; i ++) {
    this._process(this.minimatch.set[i], i, false, done);
  }
  sync = false;

  function done () {
    --self._processing;
    if (self._processing <= 0) {
      if (sync) {
        process.nextTick(function () {
          self._finish();
        });
      } else {
        self._finish();
      }
    }
  }
}

Glob.prototype._finish = function () {
  assert$2(this instanceof Glob);
  if (this.aborted)
    return

  if (this.realpath && !this._didRealpath)
    return this._realpath()

  common$4.finish(this);
  this.emit('end', this.found);
};

Glob.prototype._realpath = function () {
  if (this._didRealpath)
    return

  this._didRealpath = true;

  var n = this.matches.length;
  if (n === 0)
    return this._finish()

  var self = this;
  for (var i = 0; i < this.matches.length; i++)
    this._realpathSet(i, next);

  function next () {
    if (--n === 0)
      self._finish();
  }
};

Glob.prototype._realpathSet = function (index, cb) {
  var matchset = this.matches[index];
  if (!matchset)
    return cb()

  var found = Object.keys(matchset);
  var self = this;
  var n = found.length;

  if (n === 0)
    return cb()

  var set = this.matches[index] = Object.create(null);
  found.forEach(function (p, i) {
    // If there's a problem with the stat, then it means that
    // one or more of the links in the realpath couldn't be
    // resolved.  just return the abs value in that case.
    p = self._makeAbs(p);
    rp.realpath(p, self.realpathCache, function (er, real) {
      if (!er)
        set[real] = true;
      else if (er.syscall === 'stat')
        set[p] = true;
      else
        self.emit('error', er); // srsly wtf right here

      if (--n === 0) {
        self.matches[index] = set;
        cb();
      }
    });
  });
};

Glob.prototype._mark = function (p) {
  return common$4.mark(this, p)
};

Glob.prototype._makeAbs = function (f) {
  return common$4.makeAbs(this, f)
};

Glob.prototype.abort = function () {
  this.aborted = true;
  this.emit('abort');
};

Glob.prototype.pause = function () {
  if (!this.paused) {
    this.paused = true;
    this.emit('pause');
  }
};

Glob.prototype.resume = function () {
  if (this.paused) {
    this.emit('resume');
    this.paused = false;
    if (this._emitQueue.length) {
      var eq = this._emitQueue.slice(0);
      this._emitQueue.length = 0;
      for (var i = 0; i < eq.length; i ++) {
        var e = eq[i];
        this._emitMatch(e[0], e[1]);
      }
    }
    if (this._processQueue.length) {
      var pq = this._processQueue.slice(0);
      this._processQueue.length = 0;
      for (var i = 0; i < pq.length; i ++) {
        var p = pq[i];
        this._processing--;
        this._process(p[0], p[1], p[2], p[3]);
      }
    }
  }
};

Glob.prototype._process = function (pattern, index, inGlobStar, cb) {
  assert$2(this instanceof Glob);
  assert$2(typeof cb === 'function');

  if (this.aborted)
    return

  this._processing++;
  if (this.paused) {
    this._processQueue.push([pattern, index, inGlobStar, cb]);
    return
  }

  //console.error('PROCESS %d', this._processing, pattern)

  // Get the first [n] parts of pattern that are all strings.
  var n = 0;
  while (typeof pattern[n] === 'string') {
    n ++;
  }
  // now n is the index of the first one that is *not* a string.

  // see if there's anything else
  var prefix;
  switch (n) {
    // if not, then this is rather simple
    case pattern.length:
      this._processSimple(pattern.join('/'), index, cb);
      return

    case 0:
      // pattern *starts* with some non-trivial item.
      // going to readdir(cwd), but not include the prefix in matches.
      prefix = null;
      break

    default:
      // pattern has some string bits in the front.
      // whatever it starts with, whether that's 'absolute' like /foo/bar,
      // or 'relative' like '../baz'
      prefix = pattern.slice(0, n).join('/');
      break
  }

  var remain = pattern.slice(n);

  // get the list of entries.
  var read;
  if (prefix === null)
    read = '.';
  else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
    if (!prefix || !isAbsolute(prefix))
      prefix = '/' + prefix;
    read = prefix;
  } else
    read = prefix;

  var abs = this._makeAbs(read);

  //if ignored, skip _processing
  if (childrenIgnored(this, read))
    return cb()

  var isGlobStar = remain[0] === minimatch.GLOBSTAR;
  if (isGlobStar)
    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb);
  else
    this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb);
};

Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) {
  var self = this;
  this._readdir(abs, inGlobStar, function (er, entries) {
    return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
  });
};

Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {

  // if the abs isn't a dir, then nothing can match!
  if (!entries)
    return cb()

  // It will only match dot entries if it starts with a dot, or if
  // dot is set.  Stuff like @(.foo|.bar) isn't allowed.
  var pn = remain[0];
  var negate = !!this.minimatch.negate;
  var rawGlob = pn._glob;
  var dotOk = this.dot || rawGlob.charAt(0) === '.';

  var matchedEntries = [];
  for (var i = 0; i < entries.length; i++) {
    var e = entries[i];
    if (e.charAt(0) !== '.' || dotOk) {
      var m;
      if (negate && !prefix) {
        m = !e.match(pn);
      } else {
        m = e.match(pn);
      }
      if (m)
        matchedEntries.push(e);
    }
  }

  //console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries)

  var len = matchedEntries.length;
  // If there are no matched entries, then nothing matches.
  if (len === 0)
    return cb()

  // if this is the last remaining pattern bit, then no need for
  // an additional stat *unless* the user has specified mark or
  // stat explicitly.  We know they exist, since readdir returned
  // them.

  if (remain.length === 1 && !this.mark && !this.stat) {
    if (!this.matches[index])
      this.matches[index] = Object.create(null);

    for (var i = 0; i < len; i ++) {
      var e = matchedEntries[i];
      if (prefix) {
        if (prefix !== '/')
          e = prefix + '/' + e;
        else
          e = prefix + e;
      }

      if (e.charAt(0) === '/' && !this.nomount) {
        e = path$d.join(this.root, e);
      }
      this._emitMatch(index, e);
    }
    // This was the last one, and no stats were needed
    return cb()
  }

  // now test all matched entries as stand-ins for that part
  // of the pattern.
  remain.shift();
  for (var i = 0; i < len; i ++) {
    var e = matchedEntries[i];
    if (prefix) {
      if (prefix !== '/')
        e = prefix + '/' + e;
      else
        e = prefix + e;
    }
    this._process([e].concat(remain), index, inGlobStar, cb);
  }
  cb();
};

Glob.prototype._emitMatch = function (index, e) {
  if (this.aborted)
    return

  if (isIgnored(this, e))
    return

  if (this.paused) {
    this._emitQueue.push([index, e]);
    return
  }

  var abs = isAbsolute(e) ? e : this._makeAbs(e);

  if (this.mark)
    e = this._mark(e);

  if (this.absolute)
    e = abs;

  if (this.matches[index][e])
    return

  if (this.nodir) {
    var c = this.cache[abs];
    if (c === 'DIR' || Array.isArray(c))
      return
  }

  this.matches[index][e] = true;

  var st = this.statCache[abs];
  if (st)
    this.emit('stat', e, st);

  this.emit('match', e);
};

Glob.prototype._readdirInGlobStar = function (abs, cb) {
  if (this.aborted)
    return

  // follow all symlinked directories forever
  // just proceed as if this is a non-globstar situation
  if (this.follow)
    return this._readdir(abs, false, cb)

  var lstatkey = 'lstat\0' + abs;
  var self = this;
  var lstatcb = inflight(lstatkey, lstatcb_);

  if (lstatcb)
    self.fs.lstat(abs, lstatcb);

  function lstatcb_ (er, lstat) {
    if (er && er.code === 'ENOENT')
      return cb()

    var isSym = lstat && lstat.isSymbolicLink();
    self.symlinks[abs] = isSym;

    // If it's not a symlink or a dir, then it's definitely a regular file.
    // don't bother doing a readdir in that case.
    if (!isSym && lstat && !lstat.isDirectory()) {
      self.cache[abs] = 'FILE';
      cb();
    } else
      self._readdir(abs, false, cb);
  }
};

Glob.prototype._readdir = function (abs, inGlobStar, cb) {
  if (this.aborted)
    return

  cb = inflight('readdir\0'+abs+'\0'+inGlobStar, cb);
  if (!cb)
    return

  //console.error('RD %j %j', +inGlobStar, abs)
  if (inGlobStar && !ownProp(this.symlinks, abs))
    return this._readdirInGlobStar(abs, cb)

  if (ownProp(this.cache, abs)) {
    var c = this.cache[abs];
    if (!c || c === 'FILE')
      return cb()

    if (Array.isArray(c))
      return cb(null, c)
  }

  var self = this;
  self.fs.readdir(abs, readdirCb(this, abs, cb));
};

function readdirCb (self, abs, cb) {
  return function (er, entries) {
    if (er)
      self._readdirError(abs, er, cb);
    else
      self._readdirEntries(abs, entries, cb);
  }
}

Glob.prototype._readdirEntries = function (abs, entries, cb) {
  if (this.aborted)
    return

  // if we haven't asked to stat everything, then just
  // assume that everything in there exists, so we can avoid
  // having to stat it a second time.
  if (!this.mark && !this.stat) {
    for (var i = 0; i < entries.length; i ++) {
      var e = entries[i];
      if (abs === '/')
        e = abs + e;
      else
        e = abs + '/' + e;
      this.cache[e] = true;
    }
  }

  this.cache[abs] = entries;
  return cb(null, entries)
};

Glob.prototype._readdirError = function (f, er, cb) {
  if (this.aborted)
    return

  // handle errors, and cache the information
  switch (er.code) {
    case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
    case 'ENOTDIR': // totally normal. means it *does* exist.
      var abs = this._makeAbs(f);
      this.cache[abs] = 'FILE';
      if (abs === this.cwdAbs) {
        var error = new Error(er.code + ' invalid cwd ' + this.cwd);
        error.path = this.cwd;
        error.code = er.code;
        this.emit('error', error);
        this.abort();
      }
      break

    case 'ENOENT': // not terribly unusual
    case 'ELOOP':
    case 'ENAMETOOLONG':
    case 'UNKNOWN':
      this.cache[this._makeAbs(f)] = false;
      break

    default: // some unusual error.  Treat as failure.
      this.cache[this._makeAbs(f)] = false;
      if (this.strict) {
        this.emit('error', er);
        // If the error is handled, then we abort
        // if not, we threw out of here
        this.abort();
      }
      if (!this.silent)
        console.error('glob error', er);
      break
  }

  return cb()
};

Glob.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar, cb) {
  var self = this;
  this._readdir(abs, inGlobStar, function (er, entries) {
    self._processGlobStar2(prefix, read, abs, remain, index, inGlobStar, entries, cb);
  });
};


Glob.prototype._processGlobStar2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
  //console.error('pgs2', prefix, remain[0], entries)

  // no entries means not a dir, so it can never have matches
  // foo.txt/** doesn't match foo.txt
  if (!entries)
    return cb()

  // test without the globstar, and with every child both below
  // and replacing the globstar.
  var remainWithoutGlobStar = remain.slice(1);
  var gspref = prefix ? [ prefix ] : [];
  var noGlobStar = gspref.concat(remainWithoutGlobStar);

  // the noGlobStar pattern exits the inGlobStar state
  this._process(noGlobStar, index, false, cb);

  var isSym = this.symlinks[abs];
  var len = entries.length;

  // If it's a symlink, and we're in a globstar, then stop
  if (isSym && inGlobStar)
    return cb()

  for (var i = 0; i < len; i++) {
    var e = entries[i];
    if (e.charAt(0) === '.' && !this.dot)
      continue

    // these two cases enter the inGlobStar state
    var instead = gspref.concat(entries[i], remainWithoutGlobStar);
    this._process(instead, index, true, cb);

    var below = gspref.concat(entries[i], remain);
    this._process(below, index, true, cb);
  }

  cb();
};

Glob.prototype._processSimple = function (prefix, index, cb) {
  // XXX review this.  Shouldn't it be doing the mounting etc
  // before doing stat?  kinda weird?
  var self = this;
  this._stat(prefix, function (er, exists) {
    self._processSimple2(prefix, index, er, exists, cb);
  });
};
Glob.prototype._processSimple2 = function (prefix, index, er, exists, cb) {

  //console.error('ps2', prefix, exists)

  if (!this.matches[index])
    this.matches[index] = Object.create(null);

  // If it doesn't exist, then just mark the lack of results
  if (!exists)
    return cb()

  if (prefix && isAbsolute(prefix) && !this.nomount) {
    var trail = /[\/\\]$/.test(prefix);
    if (prefix.charAt(0) === '/') {
      prefix = path$d.join(this.root, prefix);
    } else {
      prefix = path$d.resolve(this.root, prefix);
      if (trail)
        prefix += '/';
    }
  }

  if (process.platform === 'win32')
    prefix = prefix.replace(/\\/g, '/');

  // Mark this as a match
  this._emitMatch(index, prefix);
  cb();
};

// Returns either 'DIR', 'FILE', or false
Glob.prototype._stat = function (f, cb) {
  var abs = this._makeAbs(f);
  var needDir = f.slice(-1) === '/';

  if (f.length > this.maxLength)
    return cb()

  if (!this.stat && ownProp(this.cache, abs)) {
    var c = this.cache[abs];

    if (Array.isArray(c))
      c = 'DIR';

    // It exists, but maybe not how we need it
    if (!needDir || c === 'DIR')
      return cb(null, c)

    if (needDir && c === 'FILE')
      return cb()

    // otherwise we have to stat, because maybe c=true
    // if we know it exists, but not what it is.
  }
  var stat = this.statCache[abs];
  if (stat !== undefined) {
    if (stat === false)
      return cb(null, stat)
    else {
      var type = stat.isDirectory() ? 'DIR' : 'FILE';
      if (needDir && type === 'FILE')
        return cb()
      else
        return cb(null, type, stat)
    }
  }

  var self = this;
  var statcb = inflight('stat\0' + abs, lstatcb_);
  if (statcb)
    self.fs.lstat(abs, statcb);

  function lstatcb_ (er, lstat) {
    if (lstat && lstat.isSymbolicLink()) {
      // If it's a symlink, then treat it as the target, unless
      // the target does not exist, then treat it as a file.
      return self.fs.stat(abs, function (er, stat) {
        if (er)
          self._stat2(f, abs, null, lstat, cb);
        else
          self._stat2(f, abs, er, stat, cb);
      })
    } else {
      self._stat2(f, abs, er, lstat, cb);
    }
  }
};

Glob.prototype._stat2 = function (f, abs, er, stat, cb) {
  if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
    this.statCache[abs] = false;
    return cb()
  }

  var needDir = f.slice(-1) === '/';
  this.statCache[abs] = stat;

  if (abs.slice(-1) === '/' && stat && !stat.isDirectory())
    return cb(null, false, stat)

  var c = true;
  if (stat)
    c = stat.isDirectory() ? 'DIR' : 'FILE';
  this.cache[abs] = this.cache[abs] || c;

  if (needDir && c === 'FILE')
    return cb()

  return cb(null, c, stat)
};

// @ts-check
/** @typedef { import('estree').BaseNode} BaseNode */

/** @typedef {{
	skip: () => void;
	remove: () => void;
	replace: (node: BaseNode) => void;
}} WalkerContext */

class WalkerBase {
	constructor() {
		/** @type {boolean} */
		this.should_skip = false;

		/** @type {boolean} */
		this.should_remove = false;

		/** @type {BaseNode | null} */
		this.replacement = null;

		/** @type {WalkerContext} */
		this.context = {
			skip: () => (this.should_skip = true),
			remove: () => (this.should_remove = true),
			replace: (node) => (this.replacement = node)
		};
	}

	/**
	 *
	 * @param {any} parent
	 * @param {string} prop
	 * @param {number} index
	 * @param {BaseNode} node
	 */
	replace(parent, prop, index, node) {
		if (parent) {
			if (index !== null) {
				parent[prop][index] = node;
			} else {
				parent[prop] = node;
			}
		}
	}

	/**
	 *
	 * @param {any} parent
	 * @param {string} prop
	 * @param {number} index
	 */
	remove(parent, prop, index) {
		if (parent) {
			if (index !== null) {
				parent[prop].splice(index, 1);
			} else {
				delete parent[prop];
			}
		}
	}
}

// @ts-check

/** @typedef { import('estree').BaseNode} BaseNode */
/** @typedef { import('./walker.js').WalkerContext} WalkerContext */

/** @typedef {(
 *    this: WalkerContext,
 *    node: BaseNode,
 *    parent: BaseNode,
 *    key: string,
 *    index: number
 * ) => void} SyncHandler */

class SyncWalker extends WalkerBase {
	/**
	 *
	 * @param {SyncHandler} enter
	 * @param {SyncHandler} leave
	 */
	constructor(enter, leave) {
		super();

		/** @type {SyncHandler} */
		this.enter = enter;

		/** @type {SyncHandler} */
		this.leave = leave;
	}

	/**
	 *
	 * @param {BaseNode} node
	 * @param {BaseNode} parent
	 * @param {string} [prop]
	 * @param {number} [index]
	 * @returns {BaseNode}
	 */
	visit(node, parent, prop, index) {
		if (node) {
			if (this.enter) {
				const _should_skip = this.should_skip;
				const _should_remove = this.should_remove;
				const _replacement = this.replacement;
				this.should_skip = false;
				this.should_remove = false;
				this.replacement = null;

				this.enter.call(this.context, node, parent, prop, index);

				if (this.replacement) {
					node = this.replacement;
					this.replace(parent, prop, index, node);
				}

				if (this.should_remove) {
					this.remove(parent, prop, index);
				}

				const skipped = this.should_skip;
				const removed = this.should_remove;

				this.should_skip = _should_skip;
				this.should_remove = _should_remove;
				this.replacement = _replacement;

				if (skipped) return node;
				if (removed) return null;
			}

			for (const key in node) {
				const value = node[key];

				if (typeof value !== "object") {
					continue;
				} else if (Array.isArray(value)) {
					for (let i = 0; i < value.length; i += 1) {
						if (value[i] !== null && typeof value[i].type === 'string') {
							if (!this.visit(value[i], node, key, i)) {
								// removed
								i--;
							}
						}
					}
				} else if (value !== null && typeof value.type === "string") {
					this.visit(value, node, key, null);
				}
			}

			if (this.leave) {
				const _replacement = this.replacement;
				const _should_remove = this.should_remove;
				this.replacement = null;
				this.should_remove = false;

				this.leave.call(this.context, node, parent, prop, index);

				if (this.replacement) {
					node = this.replacement;
					this.replace(parent, prop, index, node);
				}

				if (this.should_remove) {
					this.remove(parent, prop, index);
				}

				const removed = this.should_remove;

				this.replacement = _replacement;
				this.should_remove = _should_remove;

				if (removed) return null;
			}
		}

		return node;
	}
}

// @ts-check

/** @typedef { import('estree').BaseNode} BaseNode */
/** @typedef { import('./sync.js').SyncHandler} SyncHandler */
/** @typedef { import('./async.js').AsyncHandler} AsyncHandler */

/**
 *
 * @param {BaseNode} ast
 * @param {{
 *   enter?: SyncHandler
 *   leave?: SyncHandler
 * }} walker
 * @returns {BaseNode}
 */
function walk$1(ast, { enter, leave }) {
	const instance = new SyncWalker(enter, leave);
	return instance.visit(ast, null);
}

function isReference(node, parent) {
    if (node.type === 'MemberExpression') {
        return !node.computed && isReference(node.object, node);
    }
    if (node.type === 'Identifier') {
        if (!parent)
            return true;
        switch (parent.type) {
            // disregard `bar` in `foo.bar`
            case 'MemberExpression': return parent.computed || node === parent.object;
            // disregard the `foo` in `class {foo(){}}` but keep it in `class {[foo](){}}`
            case 'MethodDefinition': return parent.computed;
            // disregard the `foo` in `class {foo=bar}` but keep it in `class {[foo]=bar}` and `class {bar=foo}`
            case 'FieldDefinition': return parent.computed || node === parent.value;
            // disregard the `bar` in `{ bar: foo }`, but keep it in `{ [bar]: foo }`
            case 'Property': return parent.computed || node === parent.value;
            // disregard the `bar` in `export { foo as bar }` or
            // the foo in `import { foo as bar }`
            case 'ExportSpecifier':
            case 'ImportSpecifier': return node === parent.local;
            // disregard the `foo` in `foo: while (...) { ... break foo; ... continue foo;}`
            case 'LabeledStatement':
            case 'BreakStatement':
            case 'ContinueStatement': return false;
            default: return true;
        }
    }
    return false;
}

var peerDependencies = {
	rollup: "^2.38.3"
};

function tryParse(parse, code, id) {
  try {
    return parse(code, { allowReturnOutsideFunction: true });
  } catch (err) {
    err.message += ` in ${id}`;
    throw err;
  }
}

const firstpassGlobal = /\b(?:require|module|exports|global)\b/;

const firstpassNoGlobal = /\b(?:require|module|exports)\b/;

function hasCjsKeywords(code, ignoreGlobal) {
  const firstpass = ignoreGlobal ? firstpassNoGlobal : firstpassGlobal;
  return firstpass.test(code);
}

/* eslint-disable no-underscore-dangle */

function analyzeTopLevelStatements(parse, code, id) {
  const ast = tryParse(parse, code, id);

  let isEsModule = false;
  let hasDefaultExport = false;
  let hasNamedExports = false;

  for (const node of ast.body) {
    switch (node.type) {
      case 'ExportDefaultDeclaration':
        isEsModule = true;
        hasDefaultExport = true;
        break;
      case 'ExportNamedDeclaration':
        isEsModule = true;
        if (node.declaration) {
          hasNamedExports = true;
        } else {
          for (const specifier of node.specifiers) {
            if (specifier.exported.name === 'default') {
              hasDefaultExport = true;
            } else {
              hasNamedExports = true;
            }
          }
        }
        break;
      case 'ExportAllDeclaration':
        isEsModule = true;
        if (node.exported && node.exported.name === 'default') {
          hasDefaultExport = true;
        } else {
          hasNamedExports = true;
        }
        break;
      case 'ImportDeclaration':
        isEsModule = true;
        break;
    }
  }

  return { isEsModule, hasDefaultExport, hasNamedExports, ast };
}

const isWrappedId = (id, suffix) => id.endsWith(suffix);
const wrapId = (id, suffix) => `\0${id}${suffix}`;
const unwrapId = (wrappedId, suffix) => wrappedId.slice(1, -suffix.length);

const PROXY_SUFFIX = '?commonjs-proxy';
const REQUIRE_SUFFIX = '?commonjs-require';
const EXTERNAL_SUFFIX = '?commonjs-external';
const EXPORTS_SUFFIX = '?commonjs-exports';
const MODULE_SUFFIX = '?commonjs-module';

const DYNAMIC_REGISTER_SUFFIX = '?commonjs-dynamic-register';
const DYNAMIC_JSON_PREFIX = '\0commonjs-dynamic-json:';
const DYNAMIC_PACKAGES_ID = '\0commonjs-dynamic-packages';

const HELPERS_ID = '\0commonjsHelpers.js';

// `x['default']` is used instead of `x.default` for backward compatibility with ES3 browsers.
// Minifiers like uglify will usually transpile it back if compatibility with ES3 is not enabled.
// This will no longer be necessary once Rollup switches to ES6 output, likely
// in Rollup 3

const HELPERS = `
export var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

export function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

export function getDefaultExportFromNamespaceIfPresent (n) {
	return n && Object.prototype.hasOwnProperty.call(n, 'default') ? n['default'] : n;
}

export function getDefaultExportFromNamespaceIfNotNamed (n) {
	return n && Object.prototype.hasOwnProperty.call(n, 'default') && Object.keys(n).length === 1 ? n['default'] : n;
}

export function getAugmentedNamespace(n) {
	if (n.__esModule) return n;
	var a = Object.defineProperty({}, '__esModule', {value: true});
	Object.keys(n).forEach(function (k) {
		var d = Object.getOwnPropertyDescriptor(n, k);
		Object.defineProperty(a, k, d.get ? d : {
			enumerable: true,
			get: function () {
				return n[k];
			}
		});
	});
	return a;
}
`;

const FAILED_REQUIRE_ERROR = `throw new Error('Could not dynamically require "' + path + '". Please configure the dynamicRequireTargets or/and ignoreDynamicRequires option of @rollup/plugin-commonjs appropriately for this require call to work.');`;

const HELPER_NON_DYNAMIC = `
export function commonjsRequire (path) {
	${FAILED_REQUIRE_ERROR}
}
`;

const getDynamicHelpers = (ignoreDynamicRequires) => `
export function createModule(modulePath) {
	return {
		path: modulePath,
		exports: {},
		require: function (path, base) {
			return commonjsRequire(path, base == null ? modulePath : base);
		}
	};
}

export function commonjsRegister (path, loader) {
	DYNAMIC_REQUIRE_LOADERS[path] = loader;
}

export function commonjsRegisterOrShort (path, to) {
	const resolvedPath = commonjsResolveImpl(path, null, true);
	if (resolvedPath !== null && DYNAMIC_REQUIRE_CACHE[resolvedPath]) {
	  DYNAMIC_REQUIRE_CACHE[path] = DYNAMIC_REQUIRE_CACHE[resolvedPath];
	} else {
	  DYNAMIC_REQUIRE_SHORTS[path] = to;
	}
}

const DYNAMIC_REQUIRE_LOADERS = Object.create(null);
const DYNAMIC_REQUIRE_CACHE = Object.create(null);
const DYNAMIC_REQUIRE_SHORTS = Object.create(null);
const DEFAULT_PARENT_MODULE = {
	id: '<' + 'rollup>', exports: {}, parent: undefined, filename: null, loaded: false, children: [], paths: []
};
const CHECKED_EXTENSIONS = ['', '.js', '.json'];

function normalize (path) {
	path = path.replace(/\\\\/g, '/');
	const parts = path.split('/');
	const slashed = parts[0] === '';
	for (let i = 1; i < parts.length; i++) {
		if (parts[i] === '.' || parts[i] === '') {
			parts.splice(i--, 1);
		}
	}
	for (let i = 1; i < parts.length; i++) {
		if (parts[i] !== '..') continue;
		if (i > 0 && parts[i - 1] !== '..' && parts[i - 1] !== '.') {
			parts.splice(--i, 2);
			i--;
		}
	}
	path = parts.join('/');
	if (slashed && path[0] !== '/')
	  path = '/' + path;
	else if (path.length === 0)
	  path = '.';
	return path;
}

function join () {
	if (arguments.length === 0)
	  return '.';
	let joined;
	for (let i = 0; i < arguments.length; ++i) {
	  let arg = arguments[i];
	  if (arg.length > 0) {
		if (joined === undefined)
		  joined = arg;
		else
		  joined += '/' + arg;
	  }
	}
	if (joined === undefined)
	  return '.';

	return joined;
}

function isPossibleNodeModulesPath (modulePath) {
	let c0 = modulePath[0];
	if (c0 === '/' || c0 === '\\\\') return false;
	let c1 = modulePath[1], c2 = modulePath[2];
	if ((c0 === '.' && (!c1 || c1 === '/' || c1 === '\\\\')) ||
		(c0 === '.' && c1 === '.' && (!c2 || c2 === '/' || c2 === '\\\\'))) return false;
	if (c1 === ':' && (c2 === '/' || c2 === '\\\\'))
		return false;
	return true;
}

function dirname (path) {
  if (path.length === 0)
    return '.';

  let i = path.length - 1;
  while (i > 0) {
    const c = path.charCodeAt(i);
    if ((c === 47 || c === 92) && i !== path.length - 1)
      break;
    i--;
  }

  if (i > 0)
    return path.substr(0, i);

  if (path.chartCodeAt(0) === 47 || path.chartCodeAt(0) === 92)
    return path.charAt(0);

  return '.';
}

export function commonjsResolveImpl (path, originalModuleDir, testCache) {
	const shouldTryNodeModules = isPossibleNodeModulesPath(path);
	path = normalize(path);
	let relPath;
	if (path[0] === '/') {
		originalModuleDir = '/';
	}
	while (true) {
		if (!shouldTryNodeModules) {
			relPath = originalModuleDir ? normalize(originalModuleDir + '/' + path) : path;
		} else if (originalModuleDir) {
			relPath = normalize(originalModuleDir + '/node_modules/' + path);
		} else {
			relPath = normalize(join('node_modules', path));
		}

		if (relPath.endsWith('/..')) {
			break; // Travelled too far up, avoid infinite loop
		}

		for (let extensionIndex = 0; extensionIndex < CHECKED_EXTENSIONS.length; extensionIndex++) {
			const resolvedPath = relPath + CHECKED_EXTENSIONS[extensionIndex];
			if (DYNAMIC_REQUIRE_CACHE[resolvedPath]) {
				return resolvedPath;
			}
			if (DYNAMIC_REQUIRE_SHORTS[resolvedPath]) {
			  return resolvedPath;
			}
			if (DYNAMIC_REQUIRE_LOADERS[resolvedPath]) {
				return resolvedPath;
			}
		}
		if (!shouldTryNodeModules) break;
		const nextDir = normalize(originalModuleDir + '/..');
		if (nextDir === originalModuleDir) break;
		originalModuleDir = nextDir;
	}
	return null;
}

export function commonjsResolve (path, originalModuleDir) {
	const resolvedPath = commonjsResolveImpl(path, originalModuleDir);
	if (resolvedPath !== null) {
		return resolvedPath;
	}
	return require.resolve(path);
}

export function commonjsRequire (path, originalModuleDir) {
	let resolvedPath = commonjsResolveImpl(path, originalModuleDir, true);
	if (resolvedPath !== null) {
    let cachedModule = DYNAMIC_REQUIRE_CACHE[resolvedPath];
    if (cachedModule) return cachedModule.exports;
    let shortTo = DYNAMIC_REQUIRE_SHORTS[resolvedPath];
    if (shortTo) {
      cachedModule = DYNAMIC_REQUIRE_CACHE[shortTo];
      if (cachedModule)
        return cachedModule.exports;
      resolvedPath = commonjsResolveImpl(shortTo, null, true);
    }
    const loader = DYNAMIC_REQUIRE_LOADERS[resolvedPath];
    if (loader) {
      DYNAMIC_REQUIRE_CACHE[resolvedPath] = cachedModule = {
        id: resolvedPath,
        filename: resolvedPath,
        path: dirname(resolvedPath),
        exports: {},
        parent: DEFAULT_PARENT_MODULE,
        loaded: false,
        children: [],
        paths: [],
        require: function (path, base) {
          return commonjsRequire(path, (base === undefined || base === null) ? cachedModule.path : base);
        }
      };
      try {
        loader.call(commonjsGlobal, cachedModule, cachedModule.exports);
      } catch (error) {
        delete DYNAMIC_REQUIRE_CACHE[resolvedPath];
        throw error;
      }
      cachedModule.loaded = true;
      return cachedModule.exports;
    };
	}
	${ignoreDynamicRequires ? 'return require(path);' : FAILED_REQUIRE_ERROR}
}

commonjsRequire.cache = DYNAMIC_REQUIRE_CACHE;
commonjsRequire.resolve = commonjsResolve;
`;

function getHelpersModule(isDynamicRequireModulesEnabled, ignoreDynamicRequires) {
  return `${HELPERS}${
    isDynamicRequireModulesEnabled ? getDynamicHelpers(ignoreDynamicRequires) : HELPER_NON_DYNAMIC
  }`;
}

/* eslint-disable import/prefer-default-export */

function deconflict(scopes, globals, identifier) {
  let i = 1;
  let deconflicted = makeLegalIdentifier(identifier);
  const hasConflicts = () =>
    scopes.some((scope) => scope.contains(deconflicted)) || globals.has(deconflicted);

  while (hasConflicts()) {
    deconflicted = makeLegalIdentifier(`${identifier}_${i}`);
    i += 1;
  }

  for (const scope of scopes) {
    scope.declarations[deconflicted] = true;
  }

  return deconflicted;
}

function getName(id) {
  const name = makeLegalIdentifier(path$t.basename(id, path$t.extname(id)));
  if (name !== 'index') {
    return name;
  }
  return makeLegalIdentifier(path$t.basename(path$t.dirname(id)));
}

function normalizePathSlashes(path) {
  return path.replace(/\\/g, '/');
}

const VIRTUAL_PATH_BASE = '/$$rollup_base$$';
const getVirtualPathForDynamicRequirePath = (path, commonDir) => {
  const normalizedPath = normalizePathSlashes(path);
  return normalizedPath.startsWith(commonDir)
    ? VIRTUAL_PATH_BASE + normalizedPath.slice(commonDir.length)
    : normalizedPath;
};

function getPackageEntryPoint(dirPath) {
  let entryPoint = 'index.js';

  try {
    if (fs$r.existsSync(path$t.join(dirPath, 'package.json'))) {
      entryPoint =
        JSON.parse(fs$r.readFileSync(path$t.join(dirPath, 'package.json'), { encoding: 'utf8' })).main ||
        entryPoint;
    }
  } catch (ignored) {
    // ignored
  }

  return entryPoint;
}

function getDynamicPackagesModule(dynamicRequireModuleDirPaths, commonDir) {
  let code = `const commonjsRegisterOrShort = require('${HELPERS_ID}?commonjsRegisterOrShort');`;
  for (const dir of dynamicRequireModuleDirPaths) {
    const entryPoint = getPackageEntryPoint(dir);

    code += `\ncommonjsRegisterOrShort(${JSON.stringify(
      getVirtualPathForDynamicRequirePath(dir, commonDir)
    )}, ${JSON.stringify(getVirtualPathForDynamicRequirePath(path$t.join(dir, entryPoint), commonDir))});`;
  }
  return code;
}

function getDynamicPackagesEntryIntro(
  dynamicRequireModuleDirPaths,
  dynamicRequireModuleSet
) {
  let dynamicImports = Array.from(
    dynamicRequireModuleSet,
    (dynamicId) => `require(${JSON.stringify(wrapId(dynamicId, DYNAMIC_REGISTER_SUFFIX))});`
  ).join('\n');

  if (dynamicRequireModuleDirPaths.length) {
    dynamicImports += `require(${JSON.stringify(
      wrapId(DYNAMIC_PACKAGES_ID, DYNAMIC_REGISTER_SUFFIX)
    )});`;
  }

  return dynamicImports;
}

function isDynamicModuleImport(id, dynamicRequireModuleSet) {
  const normalizedPath = normalizePathSlashes(id);
  return dynamicRequireModuleSet.has(normalizedPath) && !normalizedPath.endsWith('.json');
}

function isDirectory(path) {
  try {
    if (fs$r.statSync(path).isDirectory()) return true;
  } catch (ignored) {
    // Nothing to do here
  }
  return false;
}

function getDynamicRequirePaths(patterns) {
  const dynamicRequireModuleSet = new Set();
  for (const pattern of !patterns || Array.isArray(patterns) ? patterns || [] : [patterns]) {
    const isNegated = pattern.startsWith('!');
    const modifySet = Set.prototype[isNegated ? 'delete' : 'add'].bind(dynamicRequireModuleSet);
    for (const path of glob_1.sync(isNegated ? pattern.substr(1) : pattern)) {
      modifySet(normalizePathSlashes(path$t.resolve(path)));
      if (isDirectory(path)) {
        modifySet(normalizePathSlashes(path$t.resolve(path$t.join(path, getPackageEntryPoint(path)))));
      }
    }
  }
  const dynamicRequireModuleDirPaths = Array.from(dynamicRequireModuleSet.values()).filter((path) =>
    isDirectory(path)
  );
  return { dynamicRequireModuleSet, dynamicRequireModuleDirPaths };
}

function getCommonJSMetaPromise(commonJSMetaPromises, id) {
  let commonJSMetaPromise = commonJSMetaPromises.get(id);
  if (commonJSMetaPromise) return commonJSMetaPromise.promise;

  const promise = new Promise((resolve) => {
    commonJSMetaPromise = {
      resolve,
      promise: null
    };
    commonJSMetaPromises.set(id, commonJSMetaPromise);
  });
  commonJSMetaPromise.promise = promise;

  return promise;
}

function setCommonJSMetaPromise(commonJSMetaPromises, id, commonjsMeta) {
  const commonJSMetaPromise = commonJSMetaPromises.get(id);
  if (commonJSMetaPromise) {
    if (commonJSMetaPromise.resolve) {
      commonJSMetaPromise.resolve(commonjsMeta);
      commonJSMetaPromise.resolve = null;
    }
  } else {
    commonJSMetaPromises.set(id, { promise: Promise.resolve(commonjsMeta), resolve: null });
  }
}

// e.g. id === "commonjsHelpers?commonjsRegister"
function getSpecificHelperProxy(id) {
  return `export {${id.split('?')[1]} as default} from "${HELPERS_ID}";`;
}

function getUnknownRequireProxy(id, requireReturnsDefault) {
  if (requireReturnsDefault === true || id.endsWith('.json')) {
    return `export {default} from ${JSON.stringify(id)};`;
  }
  const name = getName(id);
  const exported =
    requireReturnsDefault === 'auto'
      ? `import {getDefaultExportFromNamespaceIfNotNamed} from "${HELPERS_ID}"; export default /*@__PURE__*/getDefaultExportFromNamespaceIfNotNamed(${name});`
      : requireReturnsDefault === 'preferred'
      ? `import {getDefaultExportFromNamespaceIfPresent} from "${HELPERS_ID}"; export default /*@__PURE__*/getDefaultExportFromNamespaceIfPresent(${name});`
      : !requireReturnsDefault
      ? `import {getAugmentedNamespace} from "${HELPERS_ID}"; export default /*@__PURE__*/getAugmentedNamespace(${name});`
      : `export default ${name};`;
  return `import * as ${name} from ${JSON.stringify(id)}; ${exported}`;
}

function getDynamicJsonProxy(id, commonDir) {
  const normalizedPath = normalizePathSlashes(id.slice(DYNAMIC_JSON_PREFIX.length));
  return `const commonjsRegister = require('${HELPERS_ID}?commonjsRegister');\ncommonjsRegister(${JSON.stringify(
    getVirtualPathForDynamicRequirePath(normalizedPath, commonDir)
  )}, function (module, exports) {
  module.exports = require(${JSON.stringify(normalizedPath)});
});`;
}

function getDynamicRequireProxy(normalizedPath, commonDir) {
  return `const commonjsRegister = require('${HELPERS_ID}?commonjsRegister');\ncommonjsRegister(${JSON.stringify(
    getVirtualPathForDynamicRequirePath(normalizedPath, commonDir)
  )}, function (module, exports) {
  ${fs$r.readFileSync(normalizedPath, { encoding: 'utf8' })}
});`;
}

async function getStaticRequireProxy(
  id,
  requireReturnsDefault,
  esModulesWithDefaultExport,
  esModulesWithNamedExports,
  commonJsMetaPromises
) {
  const name = getName(id);
  const commonjsMeta = await getCommonJSMetaPromise(commonJsMetaPromises, id);
  if (commonjsMeta && commonjsMeta.isCommonJS) {
    return `export { __moduleExports as default } from ${JSON.stringify(id)};`;
  } else if (commonjsMeta === null) {
    return getUnknownRequireProxy(id, requireReturnsDefault);
  } else if (!requireReturnsDefault) {
    return `import { getAugmentedNamespace } from "${HELPERS_ID}"; import * as ${name} from ${JSON.stringify(
      id
    )}; export default /*@__PURE__*/getAugmentedNamespace(${name});`;
  } else if (
    requireReturnsDefault !== true &&
    (requireReturnsDefault === 'namespace' ||
      !esModulesWithDefaultExport.has(id) ||
      (requireReturnsDefault === 'auto' && esModulesWithNamedExports.has(id)))
  ) {
    return `import * as ${name} from ${JSON.stringify(id)}; export default ${name};`;
  }
  return `export { default } from ${JSON.stringify(id)};`;
}

/* eslint-disable no-param-reassign, no-undefined */

function getCandidatesForExtension(resolved, extension) {
  return [resolved + extension, `${resolved}${path$t.sep}index${extension}`];
}

function getCandidates(resolved, extensions) {
  return extensions.reduce(
    (paths, extension) => paths.concat(getCandidatesForExtension(resolved, extension)),
    [resolved]
  );
}

function getResolveId(extensions) {
  function resolveExtensions(importee, importer) {
    // not our problem
    if (importee[0] !== '.' || !importer) return undefined;

    const resolved = path$t.resolve(path$t.dirname(importer), importee);
    const candidates = getCandidates(resolved, extensions);

    for (let i = 0; i < candidates.length; i += 1) {
      try {
        const stats = fs$r.statSync(candidates[i]);
        if (stats.isFile()) return { id: candidates[i] };
      } catch (err) {
        /* noop */
      }
    }

    return undefined;
  }

  return function resolveId(importee, rawImporter) {
    if (isWrappedId(importee, MODULE_SUFFIX) || isWrappedId(importee, EXPORTS_SUFFIX)) {
      return importee;
    }

    const importer =
      rawImporter && isWrappedId(rawImporter, DYNAMIC_REGISTER_SUFFIX)
        ? unwrapId(rawImporter, DYNAMIC_REGISTER_SUFFIX)
        : rawImporter;

    // Except for exports, proxies are only importing resolved ids,
    // no need to resolve again
    if (importer && isWrappedId(importer, PROXY_SUFFIX)) {
      return importee;
    }

    const isProxyModule = isWrappedId(importee, PROXY_SUFFIX);
    const isRequiredModule = isWrappedId(importee, REQUIRE_SUFFIX);
    let isModuleRegistration = false;

    if (isProxyModule) {
      importee = unwrapId(importee, PROXY_SUFFIX);
    } else if (isRequiredModule) {
      importee = unwrapId(importee, REQUIRE_SUFFIX);

      isModuleRegistration = isWrappedId(importee, DYNAMIC_REGISTER_SUFFIX);
      if (isModuleRegistration) {
        importee = unwrapId(importee, DYNAMIC_REGISTER_SUFFIX);
      }
    }

    if (
      importee.startsWith(HELPERS_ID) ||
      importee === DYNAMIC_PACKAGES_ID ||
      importee.startsWith(DYNAMIC_JSON_PREFIX)
    ) {
      return importee;
    }

    if (importee.startsWith('\0')) {
      return null;
    }

    return this.resolve(importee, importer, {
      skipSelf: true,
      custom: { 'node-resolve': { isRequire: isProxyModule || isRequiredModule } }
    }).then((resolved) => {
      if (!resolved) {
        resolved = resolveExtensions(importee, importer);
      }
      if (resolved && isProxyModule) {
        resolved.id = wrapId(resolved.id, resolved.external ? EXTERNAL_SUFFIX : PROXY_SUFFIX);
        resolved.external = false;
      } else if (resolved && isModuleRegistration) {
        resolved.id = wrapId(resolved.id, DYNAMIC_REGISTER_SUFFIX);
      } else if (!resolved && (isProxyModule || isRequiredModule)) {
        return { id: wrapId(importee, EXTERNAL_SUFFIX), external: false };
      }
      return resolved;
    });
  };
}

function validateRollupVersion(rollupVersion, peerDependencyVersion) {
  const [major, minor] = rollupVersion.split('.').map(Number);
  const versionRegexp = /\^(\d+\.\d+)\.\d+/g;
  let minMajor = Infinity;
  let minMinor = Infinity;
  let foundVersion;
  // eslint-disable-next-line no-cond-assign
  while ((foundVersion = versionRegexp.exec(peerDependencyVersion))) {
    const [foundMajor, foundMinor] = foundVersion[1].split('.').map(Number);
    if (foundMajor < minMajor) {
      minMajor = foundMajor;
      minMinor = foundMinor;
    }
  }
  if (major < minMajor || (major === minMajor && minor < minMinor)) {
    throw new Error(
      `Insufficient Rollup version: "@rollup/plugin-commonjs" requires at least rollup@${minMajor}.${minMinor} but found rollup@${rollupVersion}.`
    );
  }
}

const operators = {
  '==': (x) => equals(x.left, x.right, false),

  '!=': (x) => not(operators['=='](x)),

  '===': (x) => equals(x.left, x.right, true),

  '!==': (x) => not(operators['==='](x)),

  '!': (x) => isFalsy(x.argument),

  '&&': (x) => isTruthy(x.left) && isTruthy(x.right),

  '||': (x) => isTruthy(x.left) || isTruthy(x.right)
};

function not(value) {
  return value === null ? value : !value;
}

function equals(a, b, strict) {
  if (a.type !== b.type) return null;
  // eslint-disable-next-line eqeqeq
  if (a.type === 'Literal') return strict ? a.value === b.value : a.value == b.value;
  return null;
}

function isTruthy(node) {
  if (!node) return false;
  if (node.type === 'Literal') return !!node.value;
  if (node.type === 'ParenthesizedExpression') return isTruthy(node.expression);
  if (node.operator in operators) return operators[node.operator](node);
  return null;
}

function isFalsy(node) {
  return not(isTruthy(node));
}

function getKeypath(node) {
  const parts = [];

  while (node.type === 'MemberExpression') {
    if (node.computed) return null;

    parts.unshift(node.property.name);
    // eslint-disable-next-line no-param-reassign
    node = node.object;
  }

  if (node.type !== 'Identifier') return null;

  const { name } = node;
  parts.unshift(name);

  return { name, keypath: parts.join('.') };
}

const KEY_COMPILED_ESM = '__esModule';

function isDefineCompiledEsm(node) {
  const definedProperty =
    getDefinePropertyCallName(node, 'exports') || getDefinePropertyCallName(node, 'module.exports');
  if (definedProperty && definedProperty.key === KEY_COMPILED_ESM) {
    return isTruthy(definedProperty.value);
  }
  return false;
}

function getDefinePropertyCallName(node, targetName) {
  const {
    callee: { object, property }
  } = node;
  if (!object || object.type !== 'Identifier' || object.name !== 'Object') return;
  if (!property || property.type !== 'Identifier' || property.name !== 'defineProperty') return;
  if (node.arguments.length !== 3) return;

  const targetNames = targetName.split('.');
  const [target, key, value] = node.arguments;
  if (targetNames.length === 1) {
    if (target.type !== 'Identifier' || target.name !== targetNames[0]) {
      return;
    }
  }

  if (targetNames.length === 2) {
    if (
      target.type !== 'MemberExpression' ||
      target.object.name !== targetNames[0] ||
      target.property.name !== targetNames[1]
    ) {
      return;
    }
  }

  if (value.type !== 'ObjectExpression' || !value.properties) return;

  const valueProperty = value.properties.find((p) => p.key && p.key.name === 'value');
  if (!valueProperty || !valueProperty.value) return;

  // eslint-disable-next-line consistent-return
  return { key: key.value, value: valueProperty.value };
}

function isShorthandProperty(parent) {
  return parent && parent.type === 'Property' && parent.shorthand;
}

function hasDefineEsmProperty(node) {
  return node.properties.some((property) => {
    if (
      property.type === 'Property' &&
      property.key.type === 'Identifier' &&
      property.key.name === '__esModule' &&
      isTruthy(property.value)
    ) {
      return true;
    }
    return false;
  });
}

function wrapCode(magicString, uses, moduleName, exportsName) {
  const args = [];
  const passedArgs = [];
  if (uses.module) {
    args.push('module');
    passedArgs.push(moduleName);
  }
  if (uses.exports) {
    args.push('exports');
    passedArgs.push(exportsName);
  }
  magicString
    .trim()
    .prepend(`(function (${args.join(', ')}) {\n`)
    .append(`\n}(${passedArgs.join(', ')}));`);
}

function rewriteExportsAndGetExportsBlock(
  magicString,
  moduleName,
  exportsName,
  wrapped,
  moduleExportsAssignments,
  firstTopLevelModuleExportsAssignment,
  exportsAssignmentsByName,
  topLevelAssignments,
  defineCompiledEsmExpressions,
  deconflictedExportNames,
  code,
  HELPERS_NAME,
  exportMode,
  detectWrappedDefault,
  defaultIsModuleExports
) {
  const exports = [];
  const exportDeclarations = [];

  if (exportMode === 'replace') {
    getExportsForReplacedModuleExports(
      magicString,
      exports,
      exportDeclarations,
      moduleExportsAssignments,
      firstTopLevelModuleExportsAssignment,
      exportsName
    );
  } else {
    exports.push(`${exportsName} as __moduleExports`);
    if (wrapped) {
      getExportsWhenWrapping(
        exportDeclarations,
        exportsName,
        detectWrappedDefault,
        HELPERS_NAME,
        defaultIsModuleExports
      );
    } else {
      getExports(
        magicString,
        exports,
        exportDeclarations,
        moduleExportsAssignments,
        exportsAssignmentsByName,
        deconflictedExportNames,
        topLevelAssignments,
        moduleName,
        exportsName,
        defineCompiledEsmExpressions,
        HELPERS_NAME,
        defaultIsModuleExports
      );
    }
  }
  if (exports.length) {
    exportDeclarations.push(`export { ${exports.join(', ')} };`);
  }

  return `\n\n${exportDeclarations.join('\n')}`;
}

function getExportsForReplacedModuleExports(
  magicString,
  exports,
  exportDeclarations,
  moduleExportsAssignments,
  firstTopLevelModuleExportsAssignment,
  exportsName
) {
  for (const { left } of moduleExportsAssignments) {
    magicString.overwrite(left.start, left.end, exportsName);
  }
  magicString.prependRight(firstTopLevelModuleExportsAssignment.left.start, 'var ');
  exports.push(`${exportsName} as __moduleExports`);
  exportDeclarations.push(`export default ${exportsName};`);
}

function getExportsWhenWrapping(
  exportDeclarations,
  exportsName,
  detectWrappedDefault,
  HELPERS_NAME,
  defaultIsModuleExports
) {
  exportDeclarations.push(
    `export default ${
      detectWrappedDefault && defaultIsModuleExports === 'auto'
        ? `/*@__PURE__*/${HELPERS_NAME}.getDefaultExportFromCjs(${exportsName})`
        : defaultIsModuleExports === false
        ? `${exportsName}.default`
        : exportsName
    };`
  );
}

function getExports(
  magicString,
  exports,
  exportDeclarations,
  moduleExportsAssignments,
  exportsAssignmentsByName,
  deconflictedExportNames,
  topLevelAssignments,
  moduleName,
  exportsName,
  defineCompiledEsmExpressions,
  HELPERS_NAME,
  defaultIsModuleExports
) {
  let deconflictedDefaultExportName;
  // Collect and rewrite module.exports assignments
  for (const { left } of moduleExportsAssignments) {
    magicString.overwrite(left.start, left.end, `${moduleName}.exports`);
  }

  // Collect and rewrite named exports
  for (const [exportName, { nodes }] of exportsAssignmentsByName) {
    const deconflicted = deconflictedExportNames[exportName];
    let needsDeclaration = true;
    for (const node of nodes) {
      let replacement = `${deconflicted} = ${exportsName}.${exportName}`;
      if (needsDeclaration && topLevelAssignments.has(node)) {
        replacement = `var ${replacement}`;
        needsDeclaration = false;
      }
      magicString.overwrite(node.start, node.left.end, replacement);
    }
    if (needsDeclaration) {
      magicString.prepend(`var ${deconflicted};\n`);
    }

    if (exportName === 'default') {
      deconflictedDefaultExportName = deconflicted;
    } else {
      exports.push(exportName === deconflicted ? exportName : `${deconflicted} as ${exportName}`);
    }
  }

  // Collect and rewrite exports.__esModule assignments
  let isRestorableCompiledEsm = false;
  for (const expression of defineCompiledEsmExpressions) {
    isRestorableCompiledEsm = true;
    const moduleExportsExpression =
      expression.type === 'CallExpression' ? expression.arguments[0] : expression.left.object;
    magicString.overwrite(moduleExportsExpression.start, moduleExportsExpression.end, exportsName);
  }

  if (!isRestorableCompiledEsm || defaultIsModuleExports === true) {
    exportDeclarations.push(`export default ${exportsName};`);
  } else if (moduleExportsAssignments.length === 0 || defaultIsModuleExports === false) {
    exports.push(`${deconflictedDefaultExportName || exportsName} as default`);
  } else {
    exportDeclarations.push(
      `export default /*@__PURE__*/${HELPERS_NAME}.getDefaultExportFromCjs(${exportsName});`
    );
  }
}

function isRequireStatement(node, scope) {
  if (!node) return false;
  if (node.type !== 'CallExpression') return false;

  // Weird case of `require()` or `module.require()` without arguments
  if (node.arguments.length === 0) return false;

  return isRequire(node.callee, scope);
}

function isRequire(node, scope) {
  return (
    (node.type === 'Identifier' && node.name === 'require' && !scope.contains('require')) ||
    (node.type === 'MemberExpression' && isModuleRequire(node, scope))
  );
}

function isModuleRequire({ object, property }, scope) {
  return (
    object.type === 'Identifier' &&
    object.name === 'module' &&
    property.type === 'Identifier' &&
    property.name === 'require' &&
    !scope.contains('module')
  );
}

function isStaticRequireStatement(node, scope) {
  if (!isRequireStatement(node, scope)) return false;
  return !hasDynamicArguments(node);
}

function hasDynamicArguments(node) {
  return (
    node.arguments.length > 1 ||
    (node.arguments[0].type !== 'Literal' &&
      (node.arguments[0].type !== 'TemplateLiteral' || node.arguments[0].expressions.length > 0))
  );
}

const reservedMethod = { resolve: true, cache: true, main: true };

function isNodeRequirePropertyAccess(parent) {
  return parent && parent.property && reservedMethod[parent.property.name];
}

function isIgnoredRequireStatement(requiredNode, ignoreRequire) {
  return ignoreRequire(requiredNode.arguments[0].value);
}

function getRequireStringArg(node) {
  return node.arguments[0].type === 'Literal'
    ? node.arguments[0].value
    : node.arguments[0].quasis[0].value.cooked;
}

function hasDynamicModuleForPath(source, id, dynamicRequireModuleSet) {
  if (!/^(?:\.{0,2}[/\\]|[A-Za-z]:[/\\])/.test(source)) {
    try {
      const resolvedPath = normalizePathSlashes(resolve$4.sync(source, { basedir: path$t.dirname(id) }));
      if (dynamicRequireModuleSet.has(resolvedPath)) {
        return true;
      }
    } catch (ex) {
      // Probably a node.js internal module
      return false;
    }

    return false;
  }

  for (const attemptExt of ['', '.js', '.json']) {
    const resolvedPath = normalizePathSlashes(path$t.resolve(path$t.dirname(id), source + attemptExt));
    if (dynamicRequireModuleSet.has(resolvedPath)) {
      return true;
    }
  }

  return false;
}

function getRequireHandlers() {
  const requiredSources = [];
  const requiredBySource = Object.create(null);
  const requiredByNode = new Map();
  const requireExpressionsWithUsedReturnValue = [];

  function addRequireStatement(sourceId, node, scope, usesReturnValue) {
    const required = getRequired(sourceId);
    requiredByNode.set(node, { scope, required });
    if (usesReturnValue) {
      required.nodesUsingRequired.push(node);
      requireExpressionsWithUsedReturnValue.push(node);
    }
  }

  function getRequired(sourceId) {
    if (!requiredBySource[sourceId]) {
      requiredSources.push(sourceId);

      requiredBySource[sourceId] = {
        source: sourceId,
        name: null,
        nodesUsingRequired: []
      };
    }

    return requiredBySource[sourceId];
  }

  function rewriteRequireExpressionsAndGetImportBlock(
    magicString,
    topLevelDeclarations,
    topLevelRequireDeclarators,
    reassignedNames,
    helpersName,
    dynamicRegisterSources,
    moduleName,
    exportsName,
    id,
    exportMode
  ) {
    setRemainingImportNamesAndRewriteRequires(
      requireExpressionsWithUsedReturnValue,
      requiredByNode,
      magicString
    );
    const imports = [];
    imports.push(`import * as ${helpersName} from "${HELPERS_ID}";`);
    if (exportMode === 'module') {
      imports.push(
        `import { __module as ${moduleName}, exports as ${exportsName} } from ${JSON.stringify(
          wrapId(id, MODULE_SUFFIX)
        )}`
      );
    } else if (exportMode === 'exports') {
      imports.push(
        `import { __exports as ${exportsName} } from ${JSON.stringify(wrapId(id, EXPORTS_SUFFIX))}`
      );
    }
    for (const source of dynamicRegisterSources) {
      imports.push(`import ${JSON.stringify(wrapId(source, REQUIRE_SUFFIX))};`);
    }
    for (const source of requiredSources) {
      if (!source.startsWith('\0')) {
        imports.push(`import ${JSON.stringify(wrapId(source, REQUIRE_SUFFIX))};`);
      }
      const { name, nodesUsingRequired } = requiredBySource[source];
      imports.push(
        `import ${nodesUsingRequired.length ? `${name} from ` : ''}${JSON.stringify(
          source.startsWith('\0') ? source : wrapId(source, PROXY_SUFFIX)
        )};`
      );
    }
    return imports.length ? `${imports.join('\n')}\n\n` : '';
  }

  return {
    addRequireStatement,
    requiredSources,
    rewriteRequireExpressionsAndGetImportBlock
  };
}

function setRemainingImportNamesAndRewriteRequires(
  requireExpressionsWithUsedReturnValue,
  requiredByNode,
  magicString
) {
  let uid = 0;
  for (const requireExpression of requireExpressionsWithUsedReturnValue) {
    const { required } = requiredByNode.get(requireExpression);
    if (!required.name) {
      let potentialName;
      const isUsedName = (node) => requiredByNode.get(node).scope.contains(potentialName);
      do {
        potentialName = `require$$${uid}`;
        uid += 1;
      } while (required.nodesUsingRequired.some(isUsedName));
      required.name = potentialName;
    }
    magicString.overwrite(requireExpression.start, requireExpression.end, required.name);
  }
}

/* eslint-disable no-param-reassign, no-shadow, no-underscore-dangle, no-continue */

const exportsPattern = /^(?:module\.)?exports(?:\.([a-zA-Z_$][a-zA-Z_$0-9]*))?$/;

const functionType = /^(?:FunctionDeclaration|FunctionExpression|ArrowFunctionExpression)$/;

function transformCommonjs(
  parse,
  code,
  id,
  isEsModule,
  ignoreGlobal,
  ignoreRequire,
  ignoreDynamicRequires,
  getIgnoreTryCatchRequireStatementMode,
  sourceMap,
  isDynamicRequireModulesEnabled,
  dynamicRequireModuleSet,
  disableWrap,
  commonDir,
  astCache,
  defaultIsModuleExports
) {
  const ast = astCache || tryParse(parse, code, id);
  const magicString = new MagicString(code);
  const uses = {
    module: false,
    exports: false,
    global: false,
    require: false
  };
  let usesDynamicRequire = false;
  const virtualDynamicRequirePath =
    isDynamicRequireModulesEnabled && getVirtualPathForDynamicRequirePath(path$t.dirname(id), commonDir);
  let scope = attachScopes(ast, 'scope');
  let lexicalDepth = 0;
  let programDepth = 0;
  let currentTryBlockEnd = null;
  let shouldWrap = false;

  const globals = new Set();

  // TODO technically wrong since globals isn't populated yet, but ¯\_(ツ)_/¯
  const HELPERS_NAME = deconflict([scope], globals, 'commonjsHelpers');
  const dynamicRegisterSources = new Set();
  let hasRemovedRequire = false;

  const {
    addRequireStatement,
    requiredSources,
    rewriteRequireExpressionsAndGetImportBlock
  } = getRequireHandlers();

  // See which names are assigned to. This is necessary to prevent
  // illegally replacing `var foo = require('foo')` with `import foo from 'foo'`,
  // where `foo` is later reassigned. (This happens in the wild. CommonJS, sigh)
  const reassignedNames = new Set();
  const topLevelDeclarations = [];
  const topLevelRequireDeclarators = new Set();
  const skippedNodes = new Set();
  const moduleAccessScopes = new Set([scope]);
  const exportsAccessScopes = new Set([scope]);
  const moduleExportsAssignments = [];
  let firstTopLevelModuleExportsAssignment = null;
  const exportsAssignmentsByName = new Map();
  const topLevelAssignments = new Set();
  const topLevelDefineCompiledEsmExpressions = [];

  walk$1(ast, {
    enter(node, parent) {
      if (skippedNodes.has(node)) {
        this.skip();
        return;
      }

      if (currentTryBlockEnd !== null && node.start > currentTryBlockEnd) {
        currentTryBlockEnd = null;
      }

      programDepth += 1;
      if (node.scope) ({ scope } = node);
      if (functionType.test(node.type)) lexicalDepth += 1;
      if (sourceMap) {
        magicString.addSourcemapLocation(node.start);
        magicString.addSourcemapLocation(node.end);
      }

      // eslint-disable-next-line default-case
      switch (node.type) {
        case 'TryStatement':
          if (currentTryBlockEnd === null) {
            currentTryBlockEnd = node.block.end;
          }
          return;
        case 'AssignmentExpression':
          if (node.left.type === 'MemberExpression') {
            const flattened = getKeypath(node.left);
            if (!flattened || scope.contains(flattened.name)) return;

            const exportsPatternMatch = exportsPattern.exec(flattened.keypath);
            if (!exportsPatternMatch || flattened.keypath === 'exports') return;

            const [, exportName] = exportsPatternMatch;
            uses[flattened.name] = true;

            // we're dealing with `module.exports = ...` or `[module.]exports.foo = ...` –
            if (flattened.keypath === 'module.exports') {
              moduleExportsAssignments.push(node);
              if (programDepth > 3) {
                moduleAccessScopes.add(scope);
              } else if (!firstTopLevelModuleExportsAssignment) {
                firstTopLevelModuleExportsAssignment = node;
              }

              if (defaultIsModuleExports === false) {
                shouldWrap = true;
              } else if (defaultIsModuleExports === 'auto') {
                if (node.right.type === 'ObjectExpression') {
                  if (hasDefineEsmProperty(node.right)) {
                    shouldWrap = true;
                  }
                } else if (defaultIsModuleExports === false) {
                  shouldWrap = true;
                }
              }
            } else if (exportName === KEY_COMPILED_ESM) {
              if (programDepth > 3) {
                shouldWrap = true;
              } else {
                topLevelDefineCompiledEsmExpressions.push(node);
              }
            } else {
              const exportsAssignments = exportsAssignmentsByName.get(exportName) || {
                nodes: [],
                scopes: new Set()
              };
              exportsAssignments.nodes.push(node);
              exportsAssignments.scopes.add(scope);
              exportsAccessScopes.add(scope);
              exportsAssignmentsByName.set(exportName, exportsAssignments);
              if (programDepth <= 3) {
                topLevelAssignments.add(node);
              }
            }

            skippedNodes.add(node.left);
          } else {
            for (const name of extractAssignedNames(node.left)) {
              reassignedNames.add(name);
            }
          }
          return;
        case 'CallExpression': {
          if (isDefineCompiledEsm(node)) {
            if (programDepth === 3 && parent.type === 'ExpressionStatement') {
              // skip special handling for [module.]exports until we know we render this
              skippedNodes.add(node.arguments[0]);
              topLevelDefineCompiledEsmExpressions.push(node);
            } else {
              shouldWrap = true;
            }
            return;
          }

          if (
            node.callee.object &&
            node.callee.object.name === 'require' &&
            node.callee.property.name === 'resolve' &&
            hasDynamicModuleForPath(id, '/', dynamicRequireModuleSet)
          ) {
            const requireNode = node.callee.object;
            magicString.appendLeft(
              node.end - 1,
              `,${JSON.stringify(
                path$t.dirname(id) === '.' ? null /* default behavior */ : virtualDynamicRequirePath
              )}`
            );
            magicString.overwrite(
              requireNode.start,
              requireNode.end,
              `${HELPERS_NAME}.commonjsRequire`,
              {
                storeName: true
              }
            );
            return;
          }

          if (!isStaticRequireStatement(node, scope)) return;
          if (!isDynamicRequireModulesEnabled) {
            skippedNodes.add(node.callee);
          }
          if (!isIgnoredRequireStatement(node, ignoreRequire)) {
            skippedNodes.add(node.callee);
            const usesReturnValue = parent.type !== 'ExpressionStatement';

            let canConvertRequire = true;
            let shouldRemoveRequireStatement = false;

            if (currentTryBlockEnd !== null) {
              ({
                canConvertRequire,
                shouldRemoveRequireStatement
              } = getIgnoreTryCatchRequireStatementMode(node.arguments[0].value));

              if (shouldRemoveRequireStatement) {
                hasRemovedRequire = true;
              }
            }

            let sourceId = getRequireStringArg(node);
            const isDynamicRegister = isWrappedId(sourceId, DYNAMIC_REGISTER_SUFFIX);
            if (isDynamicRegister) {
              sourceId = unwrapId(sourceId, DYNAMIC_REGISTER_SUFFIX);
              if (sourceId.endsWith('.json')) {
                sourceId = DYNAMIC_JSON_PREFIX + sourceId;
              }
              dynamicRegisterSources.add(wrapId(sourceId, DYNAMIC_REGISTER_SUFFIX));
            } else {
              if (
                !sourceId.endsWith('.json') &&
                hasDynamicModuleForPath(sourceId, id, dynamicRequireModuleSet)
              ) {
                if (shouldRemoveRequireStatement) {
                  magicString.overwrite(node.start, node.end, `undefined`);
                } else if (canConvertRequire) {
                  magicString.overwrite(
                    node.start,
                    node.end,
                    `${HELPERS_NAME}.commonjsRequire(${JSON.stringify(
                      getVirtualPathForDynamicRequirePath(sourceId, commonDir)
                    )}, ${JSON.stringify(
                      path$t.dirname(id) === '.' ? null /* default behavior */ : virtualDynamicRequirePath
                    )})`
                  );
                  usesDynamicRequire = true;
                }
                return;
              }

              if (canConvertRequire) {
                addRequireStatement(sourceId, node, scope, usesReturnValue);
              }
            }

            if (usesReturnValue) {
              if (shouldRemoveRequireStatement) {
                magicString.overwrite(node.start, node.end, `undefined`);
                return;
              }

              if (
                parent.type === 'VariableDeclarator' &&
                !scope.parent &&
                parent.id.type === 'Identifier'
              ) {
                // This will allow us to reuse this variable name as the imported variable if it is not reassigned
                // and does not conflict with variables in other places where this is imported
                topLevelRequireDeclarators.add(parent);
              }
            } else {
              // This is a bare import, e.g. `require('foo');`

              if (!canConvertRequire && !shouldRemoveRequireStatement) {
                return;
              }

              magicString.remove(parent.start, parent.end);
            }
          }
          return;
        }
        case 'ConditionalExpression':
        case 'IfStatement':
          // skip dead branches
          if (isFalsy(node.test)) {
            skippedNodes.add(node.consequent);
          } else if (node.alternate && isTruthy(node.test)) {
            skippedNodes.add(node.alternate);
          }
          return;
        case 'Identifier': {
          const { name } = node;
          if (!(isReference(node, parent) && !scope.contains(name))) return;
          switch (name) {
            case 'require':
              if (isNodeRequirePropertyAccess(parent)) {
                if (hasDynamicModuleForPath(id, '/', dynamicRequireModuleSet)) {
                  if (parent.property.name === 'cache') {
                    magicString.overwrite(node.start, node.end, `${HELPERS_NAME}.commonjsRequire`, {
                      storeName: true
                    });
                  }
                }

                return;
              }

              if (isDynamicRequireModulesEnabled && isRequireStatement(parent, scope)) {
                magicString.appendLeft(
                  parent.end - 1,
                  `,${JSON.stringify(
                    path$t.dirname(id) === '.' ? null /* default behavior */ : virtualDynamicRequirePath
                  )}`
                );
              }
              if (!ignoreDynamicRequires) {
                if (isShorthandProperty(parent)) {
                  magicString.appendRight(node.end, `: ${HELPERS_NAME}.commonjsRequire`);
                } else {
                  magicString.overwrite(node.start, node.end, `${HELPERS_NAME}.commonjsRequire`, {
                    storeName: true
                  });
                }
              }
              usesDynamicRequire = true;
              return;
            case 'module':
            case 'exports':
              shouldWrap = true;
              uses[name] = true;
              return;
            case 'global':
              uses.global = true;
              if (!ignoreGlobal) {
                magicString.overwrite(node.start, node.end, `${HELPERS_NAME}.commonjsGlobal`, {
                  storeName: true
                });
              }
              return;
            case 'define':
              magicString.overwrite(node.start, node.end, 'undefined', {
                storeName: true
              });
              return;
            default:
              globals.add(name);
              return;
          }
        }
        case 'MemberExpression':
          if (!isDynamicRequireModulesEnabled && isModuleRequire(node, scope)) {
            magicString.overwrite(node.start, node.end, `${HELPERS_NAME}.commonjsRequire`, {
              storeName: true
            });
            skippedNodes.add(node.object);
            skippedNodes.add(node.property);
          }
          return;
        case 'ReturnStatement':
          // if top-level return, we need to wrap it
          if (lexicalDepth === 0) {
            shouldWrap = true;
          }
          return;
        case 'ThisExpression':
          // rewrite top-level `this` as `commonjsHelpers.commonjsGlobal`
          if (lexicalDepth === 0) {
            uses.global = true;
            if (!ignoreGlobal) {
              magicString.overwrite(node.start, node.end, `${HELPERS_NAME}.commonjsGlobal`, {
                storeName: true
              });
            }
          }
          return;
        case 'UnaryExpression':
          // rewrite `typeof module`, `typeof module.exports` and `typeof exports` (https://github.com/rollup/rollup-plugin-commonjs/issues/151)
          if (node.operator === 'typeof') {
            const flattened = getKeypath(node.argument);
            if (!flattened) return;

            if (scope.contains(flattened.name)) return;

            if (
              flattened.keypath === 'module.exports' ||
              flattened.keypath === 'module' ||
              flattened.keypath === 'exports'
            ) {
              magicString.overwrite(node.start, node.end, `'object'`, {
                storeName: false
              });
            }
          }
          return;
        case 'VariableDeclaration':
          if (!scope.parent) {
            topLevelDeclarations.push(node);
          }
      }
    },

    leave(node) {
      programDepth -= 1;
      if (node.scope) scope = scope.parent;
      if (functionType.test(node.type)) lexicalDepth -= 1;
    }
  });

  const nameBase = getName(id);
  const exportsName = deconflict([...exportsAccessScopes], globals, nameBase);
  const moduleName = deconflict([...moduleAccessScopes], globals, `${nameBase}Module`);
  const deconflictedExportNames = Object.create(null);
  for (const [exportName, { scopes }] of exportsAssignmentsByName) {
    deconflictedExportNames[exportName] = deconflict([...scopes], globals, exportName);
  }

  // We cannot wrap ES/mixed modules
  shouldWrap =
    !isEsModule &&
    !disableWrap &&
    (shouldWrap || (uses.exports && moduleExportsAssignments.length > 0));
  const detectWrappedDefault =
    shouldWrap &&
    (topLevelDefineCompiledEsmExpressions.length > 0 || code.indexOf('__esModule') >= 0);

  if (
    !(
      requiredSources.length ||
      dynamicRegisterSources.size ||
      uses.module ||
      uses.exports ||
      uses.require ||
      usesDynamicRequire ||
      hasRemovedRequire ||
      topLevelDefineCompiledEsmExpressions.length > 0
    ) &&
    (ignoreGlobal || !uses.global)
  ) {
    return { meta: { commonjs: { isCommonJS: false } } };
  }

  let leadingComment = '';
  if (code.startsWith('/*')) {
    const commentEnd = code.indexOf('*/', 2) + 2;
    leadingComment = `${code.slice(0, commentEnd)}\n`;
    magicString.remove(0, commentEnd).trim();
  }

  const exportMode = shouldWrap
    ? uses.module
      ? 'module'
      : 'exports'
    : firstTopLevelModuleExportsAssignment
    ? exportsAssignmentsByName.size === 0 && topLevelDefineCompiledEsmExpressions.length === 0
      ? 'replace'
      : 'module'
    : moduleExportsAssignments.length === 0
    ? 'exports'
    : 'module';

  const importBlock = rewriteRequireExpressionsAndGetImportBlock(
    magicString,
    topLevelDeclarations,
    topLevelRequireDeclarators,
    reassignedNames,
    HELPERS_NAME,
    dynamicRegisterSources,
    moduleName,
    exportsName,
    id,
    exportMode
  );

  const exportBlock = isEsModule
    ? ''
    : rewriteExportsAndGetExportsBlock(
        magicString,
        moduleName,
        exportsName,
        shouldWrap,
        moduleExportsAssignments,
        firstTopLevelModuleExportsAssignment,
        exportsAssignmentsByName,
        topLevelAssignments,
        topLevelDefineCompiledEsmExpressions,
        deconflictedExportNames,
        code,
        HELPERS_NAME,
        exportMode,
        detectWrappedDefault,
        defaultIsModuleExports
      );

  if (shouldWrap) {
    wrapCode(magicString, uses, moduleName, exportsName);
  }

  magicString
    .trim()
    .prepend(leadingComment + importBlock)
    .append(exportBlock);

  return {
    code: magicString.toString(),
    map: sourceMap ? magicString.generateMap() : null,
    syntheticNamedExports: isEsModule ? false : '__moduleExports',
    meta: { commonjs: { isCommonJS: !isEsModule } }
  };
}

function commonjs(options = {}) {
  const extensions = options.extensions || ['.js'];
  const filter = createFilter(options.include, options.exclude);
  const {
    ignoreGlobal,
    ignoreDynamicRequires,
    requireReturnsDefault: requireReturnsDefaultOption,
    esmExternals
  } = options;
  const getRequireReturnsDefault =
    typeof requireReturnsDefaultOption === 'function'
      ? requireReturnsDefaultOption
      : () => requireReturnsDefaultOption;
  let esmExternalIds;
  const isEsmExternal =
    typeof esmExternals === 'function'
      ? esmExternals
      : Array.isArray(esmExternals)
      ? ((esmExternalIds = new Set(esmExternals)), (id) => esmExternalIds.has(id))
      : () => esmExternals;
  const defaultIsModuleExports =
    typeof options.defaultIsModuleExports === 'boolean' ? options.defaultIsModuleExports : 'auto';

  const { dynamicRequireModuleSet, dynamicRequireModuleDirPaths } = getDynamicRequirePaths(
    options.dynamicRequireTargets
  );
  const isDynamicRequireModulesEnabled = dynamicRequireModuleSet.size > 0;
  const commonDir = isDynamicRequireModulesEnabled
    ? commondir(null, Array.from(dynamicRequireModuleSet).concat(process.cwd()))
    : null;

  const esModulesWithDefaultExport = new Set();
  const esModulesWithNamedExports = new Set();
  const commonJsMetaPromises = new Map();

  const ignoreRequire =
    typeof options.ignore === 'function'
      ? options.ignore
      : Array.isArray(options.ignore)
      ? (id) => options.ignore.includes(id)
      : () => false;

  const getIgnoreTryCatchRequireStatementMode = (id) => {
    const mode =
      typeof options.ignoreTryCatch === 'function'
        ? options.ignoreTryCatch(id)
        : Array.isArray(options.ignoreTryCatch)
        ? options.ignoreTryCatch.includes(id)
        : typeof options.ignoreTryCatch !== 'undefined'
        ? options.ignoreTryCatch
        : true;

    return {
      canConvertRequire: mode !== 'remove' && mode !== true,
      shouldRemoveRequireStatement: mode === 'remove'
    };
  };

  const resolveId = getResolveId(extensions);

  const sourceMap = options.sourceMap !== false;

  function transformAndCheckExports(code, id) {
    if (isDynamicRequireModulesEnabled && this.getModuleInfo(id).isEntry) {
      // eslint-disable-next-line no-param-reassign
      code =
        getDynamicPackagesEntryIntro(dynamicRequireModuleDirPaths, dynamicRequireModuleSet) + code;
    }

    const { isEsModule, hasDefaultExport, hasNamedExports, ast } = analyzeTopLevelStatements(
      this.parse,
      code,
      id
    );
    if (hasDefaultExport) {
      esModulesWithDefaultExport.add(id);
    }
    if (hasNamedExports) {
      esModulesWithNamedExports.add(id);
    }

    if (
      !dynamicRequireModuleSet.has(normalizePathSlashes(id)) &&
      (!hasCjsKeywords(code, ignoreGlobal) || (isEsModule && !options.transformMixedEsModules))
    ) {
      return { meta: { commonjs: { isCommonJS: false } } };
    }

    // avoid wrapping as this is a commonjsRegister call
    const disableWrap = isWrappedId(id, DYNAMIC_REGISTER_SUFFIX);
    if (disableWrap) {
      // eslint-disable-next-line no-param-reassign
      id = unwrapId(id, DYNAMIC_REGISTER_SUFFIX);
    }

    return transformCommonjs(
      this.parse,
      code,
      id,
      isEsModule,
      ignoreGlobal || isEsModule,
      ignoreRequire,
      ignoreDynamicRequires && !isDynamicRequireModulesEnabled,
      getIgnoreTryCatchRequireStatementMode,
      sourceMap,
      isDynamicRequireModulesEnabled,
      dynamicRequireModuleSet,
      disableWrap,
      commonDir,
      ast,
      defaultIsModuleExports
    );
  }

  return {
    name: 'commonjs',

    buildStart() {
      validateRollupVersion(this.meta.rollupVersion, peerDependencies.rollup);
      if (options.namedExports != null) {
        this.warn(
          'The namedExports option from "@rollup/plugin-commonjs" is deprecated. Named exports are now handled automatically.'
        );
      }
    },

    resolveId,

    load(id) {
      if (id === HELPERS_ID) {
        return getHelpersModule(isDynamicRequireModulesEnabled, ignoreDynamicRequires);
      }

      if (id.startsWith(HELPERS_ID)) {
        return getSpecificHelperProxy(id);
      }

      if (isWrappedId(id, MODULE_SUFFIX)) {
        const actualId = unwrapId(id, MODULE_SUFFIX);
        let name = getName(actualId);
        let code;
        if (isDynamicRequireModulesEnabled) {
          if (['modulePath', 'commonjsRequire', 'createModule'].includes(name)) {
            name = `${name}_`;
          }
          code =
            `import {commonjsRequire, createModule} from "${HELPERS_ID}";\n` +
            `var ${name} = createModule(${JSON.stringify(
              getVirtualPathForDynamicRequirePath(path$t.dirname(actualId), commonDir)
            )});\n` +
            `export {${name} as __module}`;
        } else {
          code = `var ${name} = {exports: {}}; export {${name} as __module}`;
        }
        return {
          code,
          syntheticNamedExports: '__module',
          meta: { commonjs: { isCommonJS: false } }
        };
      }

      if (isWrappedId(id, EXPORTS_SUFFIX)) {
        const actualId = unwrapId(id, EXPORTS_SUFFIX);
        const name = getName(actualId);
        return {
          code: `var ${name} = {}; export {${name} as __exports}`,
          meta: { commonjs: { isCommonJS: false } }
        };
      }

      if (isWrappedId(id, EXTERNAL_SUFFIX)) {
        const actualId = unwrapId(id, EXTERNAL_SUFFIX);
        return getUnknownRequireProxy(
          actualId,
          isEsmExternal(actualId) ? getRequireReturnsDefault(actualId) : true
        );
      }

      if (id === DYNAMIC_PACKAGES_ID) {
        return getDynamicPackagesModule(dynamicRequireModuleDirPaths, commonDir);
      }

      if (id.startsWith(DYNAMIC_JSON_PREFIX)) {
        return getDynamicJsonProxy(id, commonDir);
      }

      if (isDynamicModuleImport(id, dynamicRequireModuleSet)) {
        return `export default require(${JSON.stringify(normalizePathSlashes(id))});`;
      }

      if (isWrappedId(id, DYNAMIC_REGISTER_SUFFIX)) {
        return getDynamicRequireProxy(
          normalizePathSlashes(unwrapId(id, DYNAMIC_REGISTER_SUFFIX)),
          commonDir
        );
      }

      if (isWrappedId(id, PROXY_SUFFIX)) {
        const actualId = unwrapId(id, PROXY_SUFFIX);
        return getStaticRequireProxy(
          actualId,
          getRequireReturnsDefault(actualId),
          esModulesWithDefaultExport,
          esModulesWithNamedExports,
          commonJsMetaPromises
        );
      }

      return null;
    },

    transform(code, rawId) {
      let id = rawId;

      if (isWrappedId(id, DYNAMIC_REGISTER_SUFFIX)) {
        id = unwrapId(id, DYNAMIC_REGISTER_SUFFIX);
      }

      const extName = path$t.extname(id);
      if (
        extName !== '.cjs' &&
        id !== DYNAMIC_PACKAGES_ID &&
        !id.startsWith(DYNAMIC_JSON_PREFIX) &&
        (!filter(id) || !extensions.includes(extName))
      ) {
        return null;
      }

      try {
        return transformAndCheckExports.call(this, code, rawId);
      } catch (err) {
        return this.error(err, err.loc);
      }
    },

    moduleParsed({ id, meta: { commonjs: commonjsMeta } }) {
      if (commonjsMeta && commonjsMeta.isCommonJS != null) {
        setCommonJSMetaPromise(commonJsMetaPromises, id, commonjsMeta);
        return;
      }
      setCommonJSMetaPromise(commonJsMetaPromises, id, null);
    }
  };
}

var globby$1 = {exports: {}};

var arrayUnion$1 = (...arguments_) => {
	return [...new Set([].concat(...arguments_))];
};

var dirGlob$1 = {exports: {}};

var pathType$1 = {};

const {promisify: promisify$6} = require$$0__default$2;
const fs$e = fs__default;

async function isType(fsStatType, statsMethodName, filePath) {
	if (typeof filePath !== 'string') {
		throw new TypeError(`Expected a string, got ${typeof filePath}`);
	}

	try {
		const stats = await promisify$6(fs$e[fsStatType])(filePath);
		return stats[statsMethodName]();
	} catch (error) {
		if (error.code === 'ENOENT') {
			return false;
		}

		throw error;
	}
}

function isTypeSync(fsStatType, statsMethodName, filePath) {
	if (typeof filePath !== 'string') {
		throw new TypeError(`Expected a string, got ${typeof filePath}`);
	}

	try {
		return fs$e[fsStatType](filePath)[statsMethodName]();
	} catch (error) {
		if (error.code === 'ENOENT') {
			return false;
		}

		throw error;
	}
}

pathType$1.isFile = isType.bind(null, 'stat', 'isFile');
pathType$1.isDirectory = isType.bind(null, 'stat', 'isDirectory');
pathType$1.isSymlink = isType.bind(null, 'lstat', 'isSymbolicLink');
pathType$1.isFileSync = isTypeSync.bind(null, 'statSync', 'isFile');
pathType$1.isDirectorySync = isTypeSync.bind(null, 'statSync', 'isDirectory');
pathType$1.isSymlinkSync = isTypeSync.bind(null, 'lstatSync', 'isSymbolicLink');

const path$c = path__default;
const pathType = pathType$1;

const getExtensions = extensions => extensions.length > 1 ? `{${extensions.join(',')}}` : extensions[0];

const getPath = (filepath, cwd) => {
	const pth = filepath[0] === '!' ? filepath.slice(1) : filepath;
	return path$c.isAbsolute(pth) ? pth : path$c.join(cwd, pth);
};

const addExtensions = (file, extensions) => {
	if (path$c.extname(file)) {
		return `**/${file}`;
	}

	return `**/${file}.${getExtensions(extensions)}`;
};

const getGlob = (directory, options) => {
	if (options.files && !Array.isArray(options.files)) {
		throw new TypeError(`Expected \`files\` to be of type \`Array\` but received type \`${typeof options.files}\``);
	}

	if (options.extensions && !Array.isArray(options.extensions)) {
		throw new TypeError(`Expected \`extensions\` to be of type \`Array\` but received type \`${typeof options.extensions}\``);
	}

	if (options.files && options.extensions) {
		return options.files.map(x => path$c.posix.join(directory, addExtensions(x, options.extensions)));
	}

	if (options.files) {
		return options.files.map(x => path$c.posix.join(directory, `**/${x}`));
	}

	if (options.extensions) {
		return [path$c.posix.join(directory, `**/*.${getExtensions(options.extensions)}`)];
	}

	return [path$c.posix.join(directory, '**')];
};

dirGlob$1.exports = async (input, options) => {
	options = {
		cwd: process.cwd(),
		...options
	};

	if (typeof options.cwd !== 'string') {
		throw new TypeError(`Expected \`cwd\` to be of type \`string\` but received type \`${typeof options.cwd}\``);
	}

	const globs = await Promise.all([].concat(input).map(async x => {
		const isDirectory = await pathType.isDirectory(getPath(x, options.cwd));
		return isDirectory ? getGlob(x, options) : x;
	}));

	return [].concat.apply([], globs); // eslint-disable-line prefer-spread
};

dirGlob$1.exports.sync = (input, options) => {
	options = {
		cwd: process.cwd(),
		...options
	};

	if (typeof options.cwd !== 'string') {
		throw new TypeError(`Expected \`cwd\` to be of type \`string\` but received type \`${typeof options.cwd}\``);
	}

	const globs = [].concat(input).map(x => pathType.isDirectorySync(getPath(x, options.cwd)) ? getGlob(x, options) : x);

	return [].concat.apply([], globs); // eslint-disable-line prefer-spread
};

var gitignore$1 = {exports: {}};

// A simple implementation of make-array
function makeArray (subject) {
  return Array.isArray(subject)
    ? subject
    : [subject]
}

const EMPTY = '';
const SPACE = ' ';
const ESCAPE = '\\';
const REGEX_TEST_BLANK_LINE = /^\s+$/;
const REGEX_REPLACE_LEADING_EXCAPED_EXCLAMATION = /^\\!/;
const REGEX_REPLACE_LEADING_EXCAPED_HASH = /^\\#/;
const REGEX_SPLITALL_CRLF = /\r?\n/g;
// /foo,
// ./foo,
// ../foo,
// .
// ..
const REGEX_TEST_INVALID_PATH = /^\.*\/|^\.+$/;

const SLASH$1 = '/';
const KEY_IGNORE = typeof Symbol !== 'undefined'
  ? Symbol.for('node-ignore')
  /* istanbul ignore next */
  : 'node-ignore';

const define = (object, key, value) =>
  Object.defineProperty(object, key, {value});

const REGEX_REGEXP_RANGE = /([0-z])-([0-z])/g;

// Sanitize the range of a regular expression
// The cases are complicated, see test cases for details
const sanitizeRange = range => range.replace(
  REGEX_REGEXP_RANGE,
  (match, from, to) => from.charCodeAt(0) <= to.charCodeAt(0)
    ? match
    // Invalid range (out of order) which is ok for gitignore rules but
    //   fatal for JavaScript regular expression, so eliminate it.
    : EMPTY
);

// See fixtures #59
const cleanRangeBackSlash = slashes => {
  const {length} = slashes;
  return slashes.slice(0, length - length % 2)
};

// > If the pattern ends with a slash,
// > it is removed for the purpose of the following description,
// > but it would only find a match with a directory.
// > In other words, foo/ will match a directory foo and paths underneath it,
// > but will not match a regular file or a symbolic link foo
// >  (this is consistent with the way how pathspec works in general in Git).
// '`foo/`' will not match regular file '`foo`' or symbolic link '`foo`'
// -> ignore-rules will not deal with it, because it costs extra `fs.stat` call
//      you could use option `mark: true` with `glob`

// '`foo/`' should not continue with the '`..`'
const REPLACERS = [

  // > Trailing spaces are ignored unless they are quoted with backslash ("\")
  [
    // (a\ ) -> (a )
    // (a  ) -> (a)
    // (a \ ) -> (a  )
    /\\?\s+$/,
    match => match.indexOf('\\') === 0
      ? SPACE
      : EMPTY
  ],

  // replace (\ ) with ' '
  [
    /\\\s/g,
    () => SPACE
  ],

  // Escape metacharacters
  // which is written down by users but means special for regular expressions.

  // > There are 12 characters with special meanings:
  // > - the backslash \,
  // > - the caret ^,
  // > - the dollar sign $,
  // > - the period or dot .,
  // > - the vertical bar or pipe symbol |,
  // > - the question mark ?,
  // > - the asterisk or star *,
  // > - the plus sign +,
  // > - the opening parenthesis (,
  // > - the closing parenthesis ),
  // > - and the opening square bracket [,
  // > - the opening curly brace {,
  // > These special characters are often called "metacharacters".
  [
    /[\\$.|*+(){^]/g,
    match => `\\${match}`
  ],

  [
    // > a question mark (?) matches a single character
    /(?!\\)\?/g,
    () => '[^/]'
  ],

  // leading slash
  [

    // > A leading slash matches the beginning of the pathname.
    // > For example, "/*.c" matches "cat-file.c" but not "mozilla-sha1/sha1.c".
    // A leading slash matches the beginning of the pathname
    /^\//,
    () => '^'
  ],

  // replace special metacharacter slash after the leading slash
  [
    /\//g,
    () => '\\/'
  ],

  [
    // > A leading "**" followed by a slash means match in all directories.
    // > For example, "**/foo" matches file or directory "foo" anywhere,
    // > the same as pattern "foo".
    // > "**/foo/bar" matches file or directory "bar" anywhere that is directly
    // >   under directory "foo".
    // Notice that the '*'s have been replaced as '\\*'
    /^\^*\\\*\\\*\\\//,

    // '**/foo' <-> 'foo'
    () => '^(?:.*\\/)?'
  ],

  // starting
  [
    // there will be no leading '/'
    //   (which has been replaced by section "leading slash")
    // If starts with '**', adding a '^' to the regular expression also works
    /^(?=[^^])/,
    function startingReplacer () {
      // If has a slash `/` at the beginning or middle
      return !/\/(?!$)/.test(this)
        // > Prior to 2.22.1
        // > If the pattern does not contain a slash /,
        // >   Git treats it as a shell glob pattern
        // Actually, if there is only a trailing slash,
        //   git also treats it as a shell glob pattern

        // After 2.22.1 (compatible but clearer)
        // > If there is a separator at the beginning or middle (or both)
        // > of the pattern, then the pattern is relative to the directory
        // > level of the particular .gitignore file itself.
        // > Otherwise the pattern may also match at any level below
        // > the .gitignore level.
        ? '(?:^|\\/)'

        // > Otherwise, Git treats the pattern as a shell glob suitable for
        // >   consumption by fnmatch(3)
        : '^'
    }
  ],

  // two globstars
  [
    // Use lookahead assertions so that we could match more than one `'/**'`
    /\\\/\\\*\\\*(?=\\\/|$)/g,

    // Zero, one or several directories
    // should not use '*', or it will be replaced by the next replacer

    // Check if it is not the last `'/**'`
    (_, index, str) => index + 6 < str.length

      // case: /**/
      // > A slash followed by two consecutive asterisks then a slash matches
      // >   zero or more directories.
      // > For example, "a/**/b" matches "a/b", "a/x/b", "a/x/y/b" and so on.
      // '/**/'
      ? '(?:\\/[^\\/]+)*'

      // case: /**
      // > A trailing `"/**"` matches everything inside.

      // #21: everything inside but it should not include the current folder
      : '\\/.+'
  ],

  // intermediate wildcards
  [
    // Never replace escaped '*'
    // ignore rule '\*' will match the path '*'

    // 'abc.*/' -> go
    // 'abc.*'  -> skip this rule
    /(^|[^\\]+)\\\*(?=.+)/g,

    // '*.js' matches '.js'
    // '*.js' doesn't match 'abc'
    (_, p1) => `${p1}[^\\/]*`
  ],

  [
    // unescape, revert step 3 except for back slash
    // For example, if a user escape a '\\*',
    // after step 3, the result will be '\\\\\\*'
    /\\\\\\(?=[$.|*+(){^])/g,
    () => ESCAPE
  ],

  [
    // '\\\\' -> '\\'
    /\\\\/g,
    () => ESCAPE
  ],

  [
    // > The range notation, e.g. [a-zA-Z],
    // > can be used to match one of the characters in a range.

    // `\` is escaped by step 3
    /(\\)?\[([^\]/]*?)(\\*)($|\])/g,
    (match, leadEscape, range, endEscape, close) => leadEscape === ESCAPE
      // '\\[bar]' -> '\\\\[bar\\]'
      ? `\\[${range}${cleanRangeBackSlash(endEscape)}${close}`
      : close === ']'
        ? endEscape.length % 2 === 0
          // A normal case, and it is a range notation
          // '[bar]'
          // '[bar\\\\]'
          ? `[${sanitizeRange(range)}${endEscape}]`
          // Invalid range notaton
          // '[bar\\]' -> '[bar\\\\]'
          : '[]'
        : '[]'
  ],

  // ending
  [
    // 'js' will not match 'js.'
    // 'ab' will not match 'abc'
    /(?:[^*])$/,

    // WTF!
    // https://git-scm.com/docs/gitignore
    // changes in [2.22.1](https://git-scm.com/docs/gitignore/2.22.1)
    // which re-fixes #24, #38

    // > If there is a separator at the end of the pattern then the pattern
    // > will only match directories, otherwise the pattern can match both
    // > files and directories.

    // 'js*' will not match 'a.js'
    // 'js/' will not match 'a.js'
    // 'js' will match 'a.js' and 'a.js/'
    match => /\/$/.test(match)
      // foo/ will not match 'foo'
      ? `${match}$`
      // foo matches 'foo' and 'foo/'
      : `${match}(?=$|\\/$)`
  ],

  // trailing wildcard
  [
    /(\^|\\\/)?\\\*$/,
    (_, p1) => {
      const prefix = p1
        // '\^':
        // '/*' does not match EMPTY
        // '/*' does not match everything

        // '\\\/':
        // 'abc/*' does not match 'abc/'
        ? `${p1}[^/]+`

        // 'a*' matches 'a'
        // 'a*' matches 'aa'
        : '[^/]*';

      return `${prefix}(?=$|\\/$)`
    }
  ],
];

// A simple cache, because an ignore rule only has only one certain meaning
const regexCache = Object.create(null);

// @param {pattern}
const makeRegex = (pattern, negative, ignorecase) => {
  const r = regexCache[pattern];
  if (r) {
    return r
  }

  // const replacers = negative
  //   ? NEGATIVE_REPLACERS
  //   : POSITIVE_REPLACERS

  const source = REPLACERS.reduce(
    (prev, current) => prev.replace(current[0], current[1].bind(pattern)),
    pattern
  );

  return regexCache[pattern] = ignorecase
    ? new RegExp(source, 'i')
    : new RegExp(source)
};

const isString = subject => typeof subject === 'string';

// > A blank line matches no files, so it can serve as a separator for readability.
const checkPattern = pattern => pattern
  && isString(pattern)
  && !REGEX_TEST_BLANK_LINE.test(pattern)

  // > A line starting with # serves as a comment.
  && pattern.indexOf('#') !== 0;

const splitPattern = pattern => pattern.split(REGEX_SPLITALL_CRLF);

class IgnoreRule {
  constructor (
    origin,
    pattern,
    negative,
    regex
  ) {
    this.origin = origin;
    this.pattern = pattern;
    this.negative = negative;
    this.regex = regex;
  }
}

const createRule = (pattern, ignorecase) => {
  const origin = pattern;
  let negative = false;

  // > An optional prefix "!" which negates the pattern;
  if (pattern.indexOf('!') === 0) {
    negative = true;
    pattern = pattern.substr(1);
  }

  pattern = pattern
  // > Put a backslash ("\") in front of the first "!" for patterns that
  // >   begin with a literal "!", for example, `"\!important!.txt"`.
  .replace(REGEX_REPLACE_LEADING_EXCAPED_EXCLAMATION, '!')
  // > Put a backslash ("\") in front of the first hash for patterns that
  // >   begin with a hash.
  .replace(REGEX_REPLACE_LEADING_EXCAPED_HASH, '#');

  const regex = makeRegex(pattern, negative, ignorecase);

  return new IgnoreRule(
    origin,
    pattern,
    negative,
    regex
  )
};

const throwError = (message, Ctor) => {
  throw new Ctor(message)
};

const checkPath = (path, originalPath, doThrow) => {
  if (!isString(path)) {
    return doThrow(
      `path must be a string, but got \`${originalPath}\``,
      TypeError
    )
  }

  // We don't know if we should ignore EMPTY, so throw
  if (!path) {
    return doThrow(`path must not be empty`, TypeError)
  }

  // Check if it is a relative path
  if (checkPath.isNotRelative(path)) {
    const r = '`path.relative()`d';
    return doThrow(
      `path should be a ${r} string, but got "${originalPath}"`,
      RangeError
    )
  }

  return true
};

const isNotRelative = path => REGEX_TEST_INVALID_PATH.test(path);

checkPath.isNotRelative = isNotRelative;
checkPath.convert = p => p;

class Ignore {
  constructor ({
    ignorecase = true
  } = {}) {
    this._rules = [];
    this._ignorecase = ignorecase;
    define(this, KEY_IGNORE, true);
    this._initCache();
  }

  _initCache () {
    this._ignoreCache = Object.create(null);
    this._testCache = Object.create(null);
  }

  _addPattern (pattern) {
    // #32
    if (pattern && pattern[KEY_IGNORE]) {
      this._rules = this._rules.concat(pattern._rules);
      this._added = true;
      return
    }

    if (checkPattern(pattern)) {
      const rule = createRule(pattern, this._ignorecase);
      this._added = true;
      this._rules.push(rule);
    }
  }

  // @param {Array<string> | string | Ignore} pattern
  add (pattern) {
    this._added = false;

    makeArray(
      isString(pattern)
        ? splitPattern(pattern)
        : pattern
    ).forEach(this._addPattern, this);

    // Some rules have just added to the ignore,
    // making the behavior changed.
    if (this._added) {
      this._initCache();
    }

    return this
  }

  // legacy
  addPattern (pattern) {
    return this.add(pattern)
  }

  //          |           ignored : unignored
  // negative |   0:0   |   0:1   |   1:0   |   1:1
  // -------- | ------- | ------- | ------- | --------
  //     0    |  TEST   |  TEST   |  SKIP   |    X
  //     1    |  TESTIF |  SKIP   |  TEST   |    X

  // - SKIP: always skip
  // - TEST: always test
  // - TESTIF: only test if checkUnignored
  // - X: that never happen

  // @param {boolean} whether should check if the path is unignored,
  //   setting `checkUnignored` to `false` could reduce additional
  //   path matching.

  // @returns {TestResult} true if a file is ignored
  _testOne (path, checkUnignored) {
    let ignored = false;
    let unignored = false;

    this._rules.forEach(rule => {
      const {negative} = rule;
      if (
        unignored === negative && ignored !== unignored
        || negative && !ignored && !unignored && !checkUnignored
      ) {
        return
      }

      const matched = rule.regex.test(path);

      if (matched) {
        ignored = !negative;
        unignored = negative;
      }
    });

    return {
      ignored,
      unignored
    }
  }

  // @returns {TestResult}
  _test (originalPath, cache, checkUnignored, slices) {
    const path = originalPath
      // Supports nullable path
      && checkPath.convert(originalPath);

    checkPath(path, originalPath, throwError);

    return this._t(path, cache, checkUnignored, slices)
  }

  _t (path, cache, checkUnignored, slices) {
    if (path in cache) {
      return cache[path]
    }

    if (!slices) {
      // path/to/a.js
      // ['path', 'to', 'a.js']
      slices = path.split(SLASH$1);
    }

    slices.pop();

    // If the path has no parent directory, just test it
    if (!slices.length) {
      return cache[path] = this._testOne(path, checkUnignored)
    }

    const parent = this._t(
      slices.join(SLASH$1) + SLASH$1,
      cache,
      checkUnignored,
      slices
    );

    // If the path contains a parent directory, check the parent first
    return cache[path] = parent.ignored
      // > It is not possible to re-include a file if a parent directory of
      // >   that file is excluded.
      ? parent
      : this._testOne(path, checkUnignored)
  }

  ignores (path) {
    return this._test(path, this._ignoreCache, false).ignored
  }

  createFilter () {
    return path => !this.ignores(path)
  }

  filter (paths) {
    return makeArray(paths).filter(this.createFilter())
  }

  // @returns {TestResult}
  test (path) {
    return this._test(path, this._testCache, true)
  }
}

const factory = options => new Ignore(options);

const returnFalse = () => false;

const isPathValid = path =>
  checkPath(path && checkPath.convert(path), path, returnFalse);

factory.isPathValid = isPathValid;

// Fixes typescript
factory.default = factory;

var ignore = factory;

// Windows
// --------------------------------------------------------------
/* istanbul ignore if  */
if (
  // Detect `process` so that it can run in browsers.
  typeof process !== 'undefined'
  && (
    process.env && process.env.IGNORE_TEST_WIN32
    || process.platform === 'win32'
  )
) {
  /* eslint no-control-regex: "off" */
  const makePosix = str => /^\\\\\?\\/.test(str)
  || /["<>|\u0000-\u001F]+/u.test(str)
    ? str
    : str.replace(/\\/g, '/');

  checkPath.convert = makePosix;

  // 'C:\\foo'     <- 'C:\\foo' has been converted to 'C:/'
  // 'd:\\foo'
  const REGIX_IS_WINDOWS_PATH_ABSOLUTE = /^[a-z]:\//i;
  checkPath.isNotRelative = path =>
    REGIX_IS_WINDOWS_PATH_ABSOLUTE.test(path)
    || isNotRelative(path);
}

var slash$1 = path => {
	const isExtendedLengthPath = /^\\\\\?\\/.test(path);
	const hasNonAscii = /[^\u0000-\u0080]+/.test(path); // eslint-disable-line no-control-regex

	if (isExtendedLengthPath || hasNonAscii) {
		return path;
	}

	return path.replace(/\\/g, '/');
};

const {promisify: promisify$5} = require$$0__default$2;
const fs$d = fs__default;
const path$b = path__default;
const fastGlob$1 = out;
const gitIgnore = ignore;
const slash = slash$1;

const DEFAULT_IGNORE = [
	'**/node_modules/**',
	'**/flow-typed/**',
	'**/coverage/**',
	'**/.git'
];

const readFileP = promisify$5(fs$d.readFile);

const mapGitIgnorePatternTo = base => ignore => {
	if (ignore.startsWith('!')) {
		return '!' + path$b.posix.join(base, ignore.slice(1));
	}

	return path$b.posix.join(base, ignore);
};

const parseGitIgnore = (content, options) => {
	const base = slash(path$b.relative(options.cwd, path$b.dirname(options.fileName)));

	return content
		.split(/\r?\n/)
		.filter(Boolean)
		.filter(line => !line.startsWith('#'))
		.map(mapGitIgnorePatternTo(base));
};

const reduceIgnore = files => {
	const ignores = gitIgnore();
	for (const file of files) {
		ignores.add(parseGitIgnore(file.content, {
			cwd: file.cwd,
			fileName: file.filePath
		}));
	}

	return ignores;
};

const ensureAbsolutePathForCwd = (cwd, p) => {
	cwd = slash(cwd);
	if (path$b.isAbsolute(p)) {
		if (slash(p).startsWith(cwd)) {
			return p;
		}

		throw new Error(`Path ${p} is not in cwd ${cwd}`);
	}

	return path$b.join(cwd, p);
};

const getIsIgnoredPredecate = (ignores, cwd) => {
	return p => ignores.ignores(slash(path$b.relative(cwd, ensureAbsolutePathForCwd(cwd, p.path || p))));
};

const getFile = async (file, cwd) => {
	const filePath = path$b.join(cwd, file);
	const content = await readFileP(filePath, 'utf8');

	return {
		cwd,
		filePath,
		content
	};
};

const getFileSync = (file, cwd) => {
	const filePath = path$b.join(cwd, file);
	const content = fs$d.readFileSync(filePath, 'utf8');

	return {
		cwd,
		filePath,
		content
	};
};

const normalizeOptions = ({
	ignore = [],
	cwd = slash(process.cwd())
} = {}) => {
	return {ignore, cwd};
};

gitignore$1.exports = async options => {
	options = normalizeOptions(options);

	const paths = await fastGlob$1('**/.gitignore', {
		ignore: DEFAULT_IGNORE.concat(options.ignore),
		cwd: options.cwd
	});

	const files = await Promise.all(paths.map(file => getFile(file, options.cwd)));
	const ignores = reduceIgnore(files);

	return getIsIgnoredPredecate(ignores, options.cwd);
};

gitignore$1.exports.sync = options => {
	options = normalizeOptions(options);

	const paths = fastGlob$1.sync('**/.gitignore', {
		ignore: DEFAULT_IGNORE.concat(options.ignore),
		cwd: options.cwd
	});

	const files = paths.map(file => getFileSync(file, options.cwd));
	const ignores = reduceIgnore(files);

	return getIsIgnoredPredecate(ignores, options.cwd);
};

const {Transform} = require$$0__default$4;

class ObjectTransform extends Transform {
	constructor() {
		super({
			objectMode: true
		});
	}
}

class FilterStream$1 extends ObjectTransform {
	constructor(filter) {
		super();
		this._filter = filter;
	}

	_transform(data, encoding, callback) {
		if (this._filter(data)) {
			this.push(data);
		}

		callback();
	}
}

class UniqueStream$1 extends ObjectTransform {
	constructor() {
		super();
		this._pushed = new Set();
	}

	_transform(data, encoding, callback) {
		if (!this._pushed.has(data)) {
			this.push(data);
			this._pushed.add(data);
		}

		callback();
	}
}

var streamUtils = {
	FilterStream: FilterStream$1,
	UniqueStream: UniqueStream$1
};

const fs$c = fs__default;
const arrayUnion = arrayUnion$1;
const merge2 = merge2_1;
const fastGlob = out;
const dirGlob = dirGlob$1.exports;
const gitignore = gitignore$1.exports;
const {FilterStream, UniqueStream} = streamUtils;

const DEFAULT_FILTER = () => false;

const isNegative = pattern => pattern[0] === '!';

const assertPatternsInput = patterns => {
	if (!patterns.every(pattern => typeof pattern === 'string')) {
		throw new TypeError('Patterns must be a string or an array of strings');
	}
};

const checkCwdOption = (options = {}) => {
	if (!options.cwd) {
		return;
	}

	let stat;
	try {
		stat = fs$c.statSync(options.cwd);
	} catch {
		return;
	}

	if (!stat.isDirectory()) {
		throw new Error('The `cwd` option must be a path to a directory');
	}
};

const getPathString = p => p.stats instanceof fs$c.Stats ? p.path : p;

const generateGlobTasks = (patterns, taskOptions) => {
	patterns = arrayUnion([].concat(patterns));
	assertPatternsInput(patterns);
	checkCwdOption(taskOptions);

	const globTasks = [];

	taskOptions = {
		ignore: [],
		expandDirectories: true,
		...taskOptions
	};

	for (const [index, pattern] of patterns.entries()) {
		if (isNegative(pattern)) {
			continue;
		}

		const ignore = patterns
			.slice(index)
			.filter(pattern => isNegative(pattern))
			.map(pattern => pattern.slice(1));

		const options = {
			...taskOptions,
			ignore: taskOptions.ignore.concat(ignore)
		};

		globTasks.push({pattern, options});
	}

	return globTasks;
};

const globDirs = (task, fn) => {
	let options = {};
	if (task.options.cwd) {
		options.cwd = task.options.cwd;
	}

	if (Array.isArray(task.options.expandDirectories)) {
		options = {
			...options,
			files: task.options.expandDirectories
		};
	} else if (typeof task.options.expandDirectories === 'object') {
		options = {
			...options,
			...task.options.expandDirectories
		};
	}

	return fn(task.pattern, options);
};

const getPattern = (task, fn) => task.options.expandDirectories ? globDirs(task, fn) : [task.pattern];

const getFilterSync = options => {
	return options && options.gitignore ?
		gitignore.sync({cwd: options.cwd, ignore: options.ignore}) :
		DEFAULT_FILTER;
};

const globToTask = task => glob => {
	const {options} = task;
	if (options.ignore && Array.isArray(options.ignore) && options.expandDirectories) {
		options.ignore = dirGlob.sync(options.ignore);
	}

	return {
		pattern: glob,
		options
	};
};

globby$1.exports = async (patterns, options) => {
	const globTasks = generateGlobTasks(patterns, options);

	const getFilter = async () => {
		return options && options.gitignore ?
			gitignore({cwd: options.cwd, ignore: options.ignore}) :
			DEFAULT_FILTER;
	};

	const getTasks = async () => {
		const tasks = await Promise.all(globTasks.map(async task => {
			const globs = await getPattern(task, dirGlob);
			return Promise.all(globs.map(globToTask(task)));
		}));

		return arrayUnion(...tasks);
	};

	const [filter, tasks] = await Promise.all([getFilter(), getTasks()]);
	const paths = await Promise.all(tasks.map(task => fastGlob(task.pattern, task.options)));

	return arrayUnion(...paths).filter(path_ => !filter(getPathString(path_)));
};

globby$1.exports.sync = (patterns, options) => {
	const globTasks = generateGlobTasks(patterns, options);

	const tasks = [];
	for (const task of globTasks) {
		const newTask = getPattern(task, dirGlob.sync).map(globToTask(task));
		tasks.push(...newTask);
	}

	const filter = getFilterSync(options);

	let matches = [];
	for (const task of tasks) {
		matches = arrayUnion(matches, fastGlob.sync(task.pattern, task.options));
	}

	return matches.filter(path_ => !filter(path_));
};

globby$1.exports.stream = (patterns, options) => {
	const globTasks = generateGlobTasks(patterns, options);

	const tasks = [];
	for (const task of globTasks) {
		const newTask = getPattern(task, dirGlob.sync).map(globToTask(task));
		tasks.push(...newTask);
	}

	const filter = getFilterSync(options);
	const filterStream = new FilterStream(p => !filter(p));
	const uniqueStream = new UniqueStream();

	return merge2(tasks.map(task => fastGlob.stream(task.pattern, task.options)))
		.pipe(filterStream)
		.pipe(uniqueStream);
};

globby$1.exports.generateGlobTasks = generateGlobTasks;

globby$1.exports.hasMagic = (patterns, options) => []
	.concat(patterns)
	.some(pattern => fastGlob.isDynamicPattern(pattern, options));

globby$1.exports.gitignore = gitignore;

var globby = globby$1.exports;

class VariableDynamicImportError extends Error {}

/* eslint-disable-next-line no-template-curly-in-string */
const example = 'For example: import(`./foo/${bar}.js`).';

function sanitizeString(str) {
  if (str.includes('*')) {
    throw new VariableDynamicImportError('A dynamic import cannot contain * characters.');
  }
  return str;
}

function templateLiteralToGlob(node) {
  let glob = '';

  for (let i = 0; i < node.quasis.length; i += 1) {
    glob += sanitizeString(node.quasis[i].value.raw);
    if (node.expressions[i]) {
      glob += expressionToGlob(node.expressions[i]);
    }
  }

  return glob;
}

function callExpressionToGlob(node) {
  const { callee } = node;
  if (
    callee.type === 'MemberExpression' &&
    callee.property.type === 'Identifier' &&
    callee.property.name === 'concat'
  ) {
    return `${expressionToGlob(callee.object)}${node.arguments.map(expressionToGlob).join('')}`;
  }
  return '*';
}

function binaryExpressionToGlob(node) {
  if (node.operator !== '+') {
    throw new VariableDynamicImportError(`${node.operator} operator is not supported.`);
  }

  return `${expressionToGlob(node.left)}${expressionToGlob(node.right)}`;
}

function expressionToGlob(node) {
  switch (node.type) {
    case 'TemplateLiteral':
      return templateLiteralToGlob(node);
    case 'CallExpression':
      return callExpressionToGlob(node);
    case 'BinaryExpression':
      return binaryExpressionToGlob(node);
    case 'Literal': {
      return sanitizeString(node.value);
    }
    default:
      return '*';
  }
}

function dynamicImportToGlob(node, sourceString) {
  let glob = expressionToGlob(node);
  if (!glob.includes('*')) {
    return null;
  }
  glob = glob.replace(/\*\*/g, '*');

  if (glob.startsWith('*')) {
    throw new VariableDynamicImportError(
      `invalid import "${sourceString}". It cannot be statically analyzed. Variable dynamic imports must start with ./ and be limited to a specific directory. ${example}`
    );
  }

  if (glob.startsWith('/')) {
    throw new VariableDynamicImportError(
      `invalid import "${sourceString}". Variable absolute imports are not supported, imports must start with ./ in the static part of the import. ${example}`
    );
  }

  if (!glob.startsWith('./') && !glob.startsWith('../')) {
    throw new VariableDynamicImportError(
      `invalid import "${sourceString}". Variable bare imports are not supported, imports must start with ./ in the static part of the import. ${example}`
    );
  }

  // Disallow ./*.ext
  const ownDirectoryStarExtension = /^\.\/\*\.[\w]+$/;
  if (ownDirectoryStarExtension.test(glob)) {
    throw new VariableDynamicImportError(
      `${
        `invalid import "${sourceString}". Variable imports cannot import their own directory, ` +
        'place imports in a separate directory or make the import filename more specific. '
      }${example}`
    );
  }

  if (path__default.extname(glob) === '') {
    throw new VariableDynamicImportError(
      `invalid import "${sourceString}". A file extension must be included in the static part of the import. ${example}`
    );
  }

  return glob;
}

function dynamicImportVariables({ include, exclude, warnOnError } = {}) {
  const filter = createFilter(include, exclude);

  return {
    name: 'rollup-plugin-dynamic-import-variables',

    transform(code, id) {
      if (!filter(id)) {
        return null;
      }

      const parsed = this.parse(code);

      let dynamicImportIndex = -1;
      let ms;

      walk$1(parsed, {
        enter: (node) => {
          if (node.type !== 'ImportExpression') {
            return;
          }
          dynamicImportIndex += 1;

          try {
            // see if this is a variable dynamic import, and generate a glob expression
            const glob = dynamicImportToGlob(node.source, code.substring(node.start, node.end));

            if (!glob) {
              // this was not a variable dynamic import
              return;
            }

            // execute the glob
            const result = globby.sync(glob, { cwd: path__default.dirname(id) });
            const paths = result.map((r) =>
              r.startsWith('./') || r.startsWith('../') ? r : `./${r}`
            );

            // create magic string if it wasn't created already
            ms = ms || new MagicString(code);
            // unpack variable dynamic import into a function with import statements per file, rollup
            // will turn these into chunks automatically
            ms.prepend(
              `function __variableDynamicImportRuntime${dynamicImportIndex}__(path) {
  switch (path) {
${paths.map((p) => `    case '${p}': return import('${p}');`).join('\n')}
${`    default: return new Promise(function(resolve, reject) {
      (typeof queueMicrotask === 'function' ? queueMicrotask : setTimeout)(
        reject.bind(null, new Error("Unknown variable dynamic import: " + path))
      );
    })\n`}   }
 }\n\n`
            );
            // call the runtime function instead of doing a dynamic import, the import specifier will
            // be evaluated at runtime and the correct import will be returned by the injected function
            ms.overwrite(
              node.start,
              node.start + 6,
              `__variableDynamicImportRuntime${dynamicImportIndex}__`
            );
          } catch (error) {
            if (error instanceof VariableDynamicImportError) {
              // TODO: line number
              if (warnOnError) {
                this.warn(error);
              } else {
                this.error(error);
              }
            } else {
              this.error(error);
            }
          }
        }
      });

      if (ms && dynamicImportIndex !== -1) {
        return {
          code: ms.toString(),
          map: ms.generateMap({
            file: id,
            includeContent: true,
            hires: true
          })
        };
      }
      return null;
    }
  };
}

const dataUriRE = /^([^/]+\/[^;,]+)(;base64)?,([\s\S]*)$/;
const dataUriPrefix = `/@data-uri/`;
/**
 * Build only, since importing from a data URI works natively.
 */
function dataURIPlugin() {
    let resolved;
    return {
        name: 'vite:data-uri',
        buildStart() {
            resolved = {};
        },
        resolveId(id) {
            if (!dataUriRE.test(id)) {
                return null;
            }
            const uri = new require$$0$8.URL(id);
            if (uri.protocol !== 'data:') {
                return null;
            }
            const match = uri.pathname.match(dataUriRE);
            if (!match) {
                return null;
            }
            const [, mime, format, data] = match;
            if (mime !== 'text/javascript') {
                throw new Error(`data URI with non-JavaScript mime type is not supported.`);
            }
            // decode data
            const base64 = format && /base64/i.test(format.substring(1));
            const content = base64
                ? Buffer.from(data, 'base64').toString('utf-8')
                : data;
            resolved[id] = content;
            return dataUriPrefix + id;
        },
        load(id) {
            if (id.startsWith(dataUriPrefix)) {
                id = id.slice(dataUriPrefix.length);
                return resolved[id] || null;
            }
        }
    };
}

/**
 * @param {object} exports
 * @param {Set<string>} keys
 */
function loop(exports, keys) {
	if (typeof exports === 'string') {
		return exports;
	}

	if (exports) {
		let idx, tmp;
		if (Array.isArray(exports)) {
			for (idx=0; idx < exports.length; idx++) {
				if (tmp = loop(exports[idx], keys)) return tmp;
			}
		} else {
			for (idx in exports) {
				if (keys.has(idx)) {
					return loop(exports[idx], keys);
				}
			}
		}
	}
}

/**
 * @param {string} name The package name
 * @param {string} entry The target entry, eg "."
 * @param {number} [condition] Unmatched condition?
 */
function bail(name, entry, condition) {
	throw new Error(
		condition
		? `No known conditions for "${entry}" entry in "${name}" package`
		: `Missing "${entry}" export in "${name}" package`
	);
}

/**
 * @param {string} name the package name
 * @param {string} entry the target path/import
 */
function toName(name, entry) {
	return entry === name ? '.'
		: entry[0] === '.' ? entry
		: entry.replace(new RegExp('^' + name + '\/'), './');
}

/**
 * @param {object} pkg package.json contents
 * @param {string} [entry] entry name or import path
 * @param {object} [options]
 * @param {boolean} [options.browser]
 * @param {boolean} [options.require]
 * @param {string[]} [options.conditions]
 */
function resolve$1(pkg, entry='.', options={}) {
	let { name, exports } = pkg;

	if (exports) {
		let { browser, require, conditions=[] } = options;

		let target = toName(name, entry);
		if (target[0] !== '.') target = './' + target;

		if (typeof exports === 'string') {
			return target === '.' ? exports : bail(name, target);
		}

		let allows = new Set(['default', ...conditions]);
		allows.add(require ? 'require' : 'import');
		allows.add(browser ? 'browser' : 'node');

		let key, tmp, isSingle=false;

		for (key in exports) {
			isSingle = key[0] !== '.';
			break;
		}

		if (isSingle) {
			return target === '.'
				? loop(exports, allows) || bail(name, target, 1)
				: bail(name, target);
		}

		if (tmp = exports[target]) {
			return loop(tmp, allows) || bail(name, target, 1);
		}

		for (key in exports) {
			tmp = key[key.length - 1];
			if (tmp === '/' && target.startsWith(key)) {
				return (tmp = loop(exports[key], allows))
					? (tmp + target.substring(key.length))
					: bail(name, target, 1);
			}
			if (tmp === '*' && target.startsWith(key.slice(0, -1))) {
				// do not trigger if no *content* to inject
				if (target.substring(key.length - 1).length > 0) {
					return (tmp = loop(exports[key], allows))
						? tmp.replace('*', target.substring(key.length - 1))
						: bail(name, target, 1);
				}
			}
		}

		return bail(name, target);
	}
}

// special id for paths marked with browser: false
// https://github.com/defunctzombie/package-browser-field-spec#ignore-a-module
const browserExternalId = '__vite-browser-external';
const isDebug$5 = process.env.DEBUG;
const debug$d = createDebugger('vite:resolve-details', {
    onlyWhenFocused: true
});
function resolvePlugin(baseOptions) {
    const { root, isProduction, asSrc, ssrConfig, preferRelative = false } = baseOptions;
    const requireOptions = {
        ...baseOptions,
        isRequire: true
    };
    let server;
    const { target: ssrTarget, noExternal: ssrNoExternal } = ssrConfig !== null && ssrConfig !== void 0 ? ssrConfig : {};
    return {
        name: 'vite:resolve',
        configureServer(_server) {
            server = _server;
        },
        resolveId(id, importer, resolveOpts, ssr) {
            if (id.startsWith(browserExternalId)) {
                return id;
            }
            // fast path for commonjs proxy modules
            if (/\?commonjs/.test(id) || id === 'commonjsHelpers.js') {
                return;
            }
            const targetWeb = !ssr || ssrTarget === 'webworker';
            // this is passed by @rollup/plugin-commonjs
            const isRequire = resolveOpts &&
                resolveOpts.custom &&
                resolveOpts.custom['node-resolve'] &&
                resolveOpts.custom['node-resolve'].isRequire;
            const options = isRequire ? requireOptions : baseOptions;
            const preserveSymlinks = !!(server === null || server === void 0 ? void 0 : server.config.resolve.preserveSymlinks);
            let res;
            // explicit fs paths that starts with /@fs/*
            if (asSrc && id.startsWith(FS_PREFIX)) {
                const fsPath = fsPathFromId(id);
                res = tryFsResolve(fsPath, options, preserveSymlinks);
                isDebug$5 && debug$d(`[@fs] ${source.cyan(id)} -> ${source.dim(res)}`);
                // always return here even if res doesn't exist since /@fs/ is explicit
                // if the file doesn't exist it should be a 404
                return res || fsPath;
            }
            // URL
            // /foo -> /fs-root/foo
            if (asSrc && id.startsWith('/')) {
                const fsPath = path__default.resolve(root, id.slice(1));
                if ((res = tryFsResolve(fsPath, options, preserveSymlinks))) {
                    isDebug$5 && debug$d(`[url] ${source.cyan(id)} -> ${source.dim(res)}`);
                    return res;
                }
            }
            // relative
            if (id.startsWith('.') || (preferRelative && /^\w/.test(id))) {
                const basedir = importer ? path__default.dirname(importer) : process.cwd();
                const fsPath = path__default.resolve(basedir, id);
                // handle browser field mapping for relative imports
                const normalizedFsPath = normalizePath$4(fsPath);
                const pathFromBasedir = normalizedFsPath.slice(basedir.length);
                if (pathFromBasedir.startsWith('/node_modules/')) {
                    // normalize direct imports from node_modules to bare imports, so the
                    // hashing logic is shared and we avoid duplicated modules #2503
                    const bareImport = pathFromBasedir.slice('/node_modules/'.length);
                    if ((res = tryNodeResolve(bareImport, importer, options, targetWeb, server, ssr)) &&
                        res.id.startsWith(normalizedFsPath)) {
                        return res;
                    }
                }
                if (targetWeb &&
                    (res = tryResolveBrowserMapping(fsPath, importer, options, true, preserveSymlinks))) {
                    return res;
                }
                if ((res = tryFsResolve(fsPath, options, preserveSymlinks))) {
                    isDebug$5 && debug$d(`[relative] ${source.cyan(id)} -> ${source.dim(res)}`);
                    const pkg = importer != null && idToPkgMap.get(importer);
                    if (pkg) {
                        idToPkgMap.set(res, pkg);
                        return {
                            id: res,
                            moduleSideEffects: pkg.hasSideEffects(res)
                        };
                    }
                    return res;
                }
            }
            // absolute fs paths
            if (path__default.isAbsolute(id) &&
                (res = tryFsResolve(id, options, preserveSymlinks))) {
                isDebug$5 && debug$d(`[fs] ${source.cyan(id)} -> ${source.dim(res)}`);
                return res;
            }
            // external
            if (isExternalUrl(id)) {
                return {
                    id,
                    external: true
                };
            }
            // data uri: pass through (this only happens during build and will be
            // handled by dedicated plugin)
            if (isDataUrl(id)) {
                return null;
            }
            // bare package imports, perform node resolve
            if (bareImportRE.test(id)) {
                if (asSrc &&
                    server &&
                    !ssr &&
                    (res = tryOptimizedResolve(id, server, importer))) {
                    return res;
                }
                if (targetWeb &&
                    (res = tryResolveBrowserMapping(id, importer, options, false, preserveSymlinks))) {
                    return res;
                }
                if ((res = tryNodeResolve(id, importer, options, targetWeb, server, ssr))) {
                    return res;
                }
                // node built-ins.
                // externalize if building for SSR, otherwise redirect to empty module
                if (isBuiltin(id)) {
                    if (ssr) {
                        if (ssrNoExternal === true) {
                            let message = `Cannot bundle Node.js built-in "${id}"`;
                            if (importer) {
                                message += ` imported from "${path__default.relative(process.cwd(), importer)}"`;
                            }
                            message += `. Consider disabling ssr.noExternal or remove the built-in dependency.`;
                            this.error(message);
                        }
                        return {
                            id,
                            external: true
                        };
                    }
                    else {
                        if (!asSrc) {
                            debug$d(`externalized node built-in "${id}" to empty module. ` +
                                `(imported by: ${source.white.dim(importer)})`);
                        }
                        return isProduction
                            ? browserExternalId
                            : `${browserExternalId}:${id}`;
                    }
                }
            }
            isDebug$5 && debug$d(`[fallthrough] ${source.dim(id)}`);
        },
        load(id) {
            if (id.startsWith(browserExternalId)) {
                return isProduction
                    ? `export default {}`
                    : `export default new Proxy({}, {
  get() {
    throw new Error('Module "${id.slice(browserExternalId.length + 1)}" has been externalized for browser compatibility and cannot be accessed in client code.')
  }
})`;
            }
        }
    };
}
function tryFsResolve(fsPath, options, preserveSymlinks, tryIndex = true, targetWeb = true) {
    let file = fsPath;
    let postfix = '';
    let postfixIndex = fsPath.indexOf('?');
    if (postfixIndex < 0) {
        postfixIndex = fsPath.indexOf('#');
    }
    if (postfixIndex > 0) {
        file = fsPath.slice(0, postfixIndex);
        postfix = fsPath.slice(postfixIndex);
    }
    let res;
    if ((res = tryResolveFile(file, postfix, options, false, targetWeb, preserveSymlinks, options.tryPrefix, options.skipPackageJson))) {
        return res;
    }
    for (const ext of options.extensions || DEFAULT_EXTENSIONS) {
        if ((res = tryResolveFile(file + ext, postfix, options, false, targetWeb, preserveSymlinks, options.tryPrefix, options.skipPackageJson))) {
            return res;
        }
    }
    if ((res = tryResolveFile(file, postfix, options, tryIndex, targetWeb, preserveSymlinks, options.tryPrefix, options.skipPackageJson))) {
        return res;
    }
}
function tryResolveFile(file, postfix, options, tryIndex, targetWeb, preserveSymlinks, tryPrefix, skipPackageJson) {
    // #2051 if we don't have read permission on a directory, existsSync() still
    // works and will result in massively slow subsequent checks (which are
    // unnecessary in the first place)
    if (isFileReadable(file)) {
        if (!fs__default.statSync(file).isDirectory()) {
            return getRealPath(file, preserveSymlinks) + postfix;
        }
        else if (tryIndex) {
            if (!skipPackageJson) {
                const pkgPath = file + '/package.json';
                if (fs__default.existsSync(pkgPath)) {
                    // path points to a node package
                    const pkg = loadPackageData(pkgPath);
                    const resolved = resolvePackageEntry(file, pkg, options, targetWeb, preserveSymlinks);
                    return resolved;
                }
            }
            const index = tryFsResolve(file + '/index', options, preserveSymlinks);
            if (index)
                return index + postfix;
        }
    }
    if (tryPrefix) {
        const prefixed = `${path__default.dirname(file)}/${tryPrefix}${path__default.basename(file)}`;
        return tryResolveFile(prefixed, postfix, options, tryIndex, targetWeb, preserveSymlinks);
    }
}
const idToPkgMap = new Map();
function tryNodeResolve(id, importer, options, targetWeb, server, ssr) {
    var _a, _b, _c;
    const { root, dedupe, isBuild } = options;
    // split id by last '>' for nested selected packages, for example:
    // 'foo > bar > baz' => 'foo > bar' & 'baz'
    // 'foo'             => ''          & 'foo'
    const lastArrowIndex = id.lastIndexOf('>');
    const nestedRoot = id.substring(0, lastArrowIndex).trim();
    const nestedPath = id.substring(lastArrowIndex + 1).trim();
    // check for deep import, e.g. "my-lib/foo"
    const deepMatch = nestedPath.match(deepImportRE);
    const pkgId = deepMatch ? deepMatch[1] || deepMatch[2] : nestedPath;
    let basedir;
    if (dedupe && dedupe.includes(pkgId)) {
        basedir = root;
    }
    else if (importer &&
        path__default.isAbsolute(importer) &&
        fs__default.existsSync(cleanUrl(importer))) {
        basedir = path__default.dirname(importer);
    }
    else {
        basedir = root;
    }
    const preserveSymlinks = !!(server === null || server === void 0 ? void 0 : server.config.resolve.preserveSymlinks);
    // nested node module, step-by-step resolve to the basedir of the nestedPath
    if (nestedRoot) {
        basedir = nestedResolveFrom(nestedRoot, basedir, preserveSymlinks);
    }
    const pkg = resolvePackageData(pkgId, basedir, preserveSymlinks);
    if (!pkg) {
        return;
    }
    let resolved = deepMatch
        ? resolveDeepImport('.' + id.slice(pkgId.length), pkg, options, targetWeb, preserveSymlinks)
        : resolvePackageEntry(id, pkg, options, targetWeb, preserveSymlinks);
    if (!resolved) {
        return;
    }
    // link id to pkg for browser field mapping check
    idToPkgMap.set(resolved, pkg);
    if (isBuild) {
        // Resolve package side effects for build so that rollup can better
        // perform tree-shaking
        return {
            id: resolved,
            moduleSideEffects: pkg.hasSideEffects(resolved)
        };
    }
    else {
        if (!resolved.includes('node_modules') || // linked
            !server || // build
            server._isRunningOptimizer || // optimizing
            !server._optimizeDepsMetadata) {
            return { id: resolved };
        }
        // if we reach here, it's a valid dep import that hasn't been optimized.
        const isJsType = OPTIMIZABLE_ENTRY_RE.test(resolved);
        const exclude = (_a = server.config.optimizeDeps) === null || _a === void 0 ? void 0 : _a.exclude;
        if (!isJsType ||
            (importer === null || importer === void 0 ? void 0 : importer.includes('node_modules')) ||
            (exclude === null || exclude === void 0 ? void 0 : exclude.includes(pkgId)) ||
            (exclude === null || exclude === void 0 ? void 0 : exclude.includes(id)) ||
            SPECIAL_QUERY_RE.test(resolved) ||
            ssr) {
            // excluded from optimization
            // Inject a version query to npm deps so that the browser
            // can cache it without re-validation, but only do so for known js types.
            // otherwise we may introduce duplicated modules for externalized files
            // from pre-bundled deps.
            const versionHash = (_b = server._optimizeDepsMetadata) === null || _b === void 0 ? void 0 : _b.browserHash;
            if (versionHash && isJsType) {
                resolved = injectQuery(resolved, `v=${versionHash}`);
            }
        }
        else {
            // this is a missing import.
            // queue optimize-deps re-run.
            (_c = server._registerMissingImport) === null || _c === void 0 ? void 0 : _c.call(server, id, resolved, ssr);
        }
        return { id: resolved };
    }
}
function tryOptimizedResolve(id, server, importer) {
    const cacheDir = server.config.cacheDir;
    const depData = server._optimizeDepsMetadata;
    if (!cacheDir || !depData)
        return;
    const getOptimizedUrl = (optimizedData) => {
        return (optimizedData.file +
            `?v=${depData.browserHash}${optimizedData.needsInterop ? `&es-interop` : ``}`);
    };
    // check if id has been optimized
    const isOptimized = depData.optimized[id];
    if (isOptimized) {
        return getOptimizedUrl(isOptimized);
    }
    if (!importer)
        return;
    // further check if id is imported by nested dependency
    let resolvedSrc;
    for (const [pkgPath, optimizedData] of Object.entries(depData.optimized)) {
        // check for scenarios, e.g.
        //   pkgPath  => "my-lib > foo"
        //   id       => "foo"
        // this narrows the need to do a full resolve
        if (!pkgPath.endsWith(id))
            continue;
        // lazily initialize resolvedSrc
        if (resolvedSrc == null) {
            try {
                // this may throw errors if unable to resolve, e.g. aliased id
                resolvedSrc = normalizePath$4(resolveFrom$3(id, path__default.dirname(importer)));
            }
            catch {
                // this is best-effort only so swallow errors
                break;
            }
        }
        // match by src to correctly identify if id belongs to nested dependency
        if (optimizedData.src === resolvedSrc) {
            return getOptimizedUrl(optimizedData);
        }
    }
}
const packageCache = new Map();
function resolvePackageData(id, basedir, preserveSymlinks = false) {
    const cacheKey = id + basedir;
    if (packageCache.has(cacheKey)) {
        return packageCache.get(cacheKey);
    }
    try {
        const pkgPath = resolveFrom$3(`${id}/package.json`, basedir, preserveSymlinks);
        return loadPackageData(pkgPath, cacheKey);
    }
    catch (e) {
        isDebug$5 && debug$d(`${source.red(`[failed loading package.json]`)} ${id}`);
    }
}
function loadPackageData(pkgPath, cacheKey = pkgPath) {
    const data = JSON.parse(fs__default.readFileSync(pkgPath, 'utf-8'));
    const pkgDir = path__default.dirname(pkgPath);
    const { sideEffects } = data;
    let hasSideEffects;
    if (typeof sideEffects === 'boolean') {
        hasSideEffects = () => sideEffects;
    }
    else if (Array.isArray(sideEffects)) {
        hasSideEffects = createFilter$1(sideEffects, null, { resolve: pkgDir });
    }
    else {
        hasSideEffects = () => true;
    }
    const pkg = {
        dir: pkgDir,
        data,
        hasSideEffects,
        webResolvedImports: {},
        nodeResolvedImports: {},
        setResolvedCache(key, entry, targetWeb) {
            if (targetWeb) {
                pkg.webResolvedImports[key] = entry;
            }
            else {
                pkg.nodeResolvedImports[key] = entry;
            }
        },
        getResolvedCache(key, targetWeb) {
            if (targetWeb) {
                return pkg.webResolvedImports[key];
            }
            else {
                return pkg.nodeResolvedImports[key];
            }
        }
    };
    packageCache.set(cacheKey, pkg);
    return pkg;
}
function resolvePackageEntry(id, { dir, data, setResolvedCache, getResolvedCache }, options, targetWeb, preserveSymlinks = false) {
    var _a, _b;
    const cached = getResolvedCache('.', targetWeb);
    if (cached) {
        return cached;
    }
    try {
        let entryPoint;
        // resolve exports field with highest priority
        // using https://github.com/lukeed/resolve.exports
        if (data.exports) {
            entryPoint = resolveExports(data, '.', options, targetWeb);
        }
        // if exports resolved to .mjs, still resolve other fields.
        // This is because .mjs files can technically import .cjs files which would
        // make them invalid for pure ESM environments - so if other module/browser
        // fields are present, prioritize those instead.
        if (targetWeb && (!entryPoint || entryPoint.endsWith('.mjs'))) {
            // check browser field
            // https://github.com/defunctzombie/package-browser-field-spec
            const browserEntry = typeof data.browser === 'string'
                ? data.browser
                : isObject$3(data.browser) && data.browser['.'];
            if (browserEntry) {
                // check if the package also has a "module" field.
                if (typeof data.module === 'string' && data.module !== browserEntry) {
                    // if both are present, we may have a problem: some package points both
                    // to ESM, with "module" targeting Node.js, while some packages points
                    // "module" to browser ESM and "browser" to UMD.
                    // the heuristics here is to actually read the browser entry when
                    // possible and check for hints of UMD. If it is UMD, prefer "module"
                    // instead; Otherwise, assume it's ESM and use it.
                    const resolvedBrowserEntry = tryFsResolve(path__default.join(dir, browserEntry), options, preserveSymlinks);
                    if (resolvedBrowserEntry) {
                        const content = fs__default.readFileSync(resolvedBrowserEntry, 'utf-8');
                        if ((/typeof exports\s*==/.test(content) &&
                            /typeof module\s*==/.test(content)) ||
                            /module\.exports\s*=/.test(content)) {
                            // likely UMD or CJS(!!! e.g. firebase 7.x), prefer module
                            entryPoint = data.module;
                        }
                    }
                }
                else {
                    entryPoint = browserEntry;
                }
            }
        }
        if (!entryPoint || entryPoint.endsWith('.mjs')) {
            for (const field of options.mainFields || DEFAULT_MAIN_FIELDS) {
                if (typeof data[field] === 'string') {
                    entryPoint = data[field];
                    break;
                }
            }
        }
        entryPoint = entryPoint || data.main || 'index.js';
        // make sure we don't get scripts when looking for sass
        if (((_a = options.mainFields) === null || _a === void 0 ? void 0 : _a[0]) === 'sass' &&
            !((_b = options.extensions) === null || _b === void 0 ? void 0 : _b.includes(path__default.extname(entryPoint)))) {
            entryPoint = '';
            options.skipPackageJson = true;
        }
        // resolve object browser field in package.json
        const { browser: browserField } = data;
        if (targetWeb && isObject$3(browserField)) {
            entryPoint = mapWithBrowserField(entryPoint, browserField) || entryPoint;
        }
        entryPoint = path__default.join(dir, entryPoint);
        const resolvedEntryPoint = tryFsResolve(entryPoint, options, preserveSymlinks);
        if (resolvedEntryPoint) {
            isDebug$5 &&
                debug$d(`[package entry] ${source.cyan(id)} -> ${source.dim(resolvedEntryPoint)}`);
            setResolvedCache('.', resolvedEntryPoint, targetWeb);
            return resolvedEntryPoint;
        }
        else {
            packageEntryFailure(id);
        }
    }
    catch (e) {
        packageEntryFailure(id, e.message);
    }
}
function packageEntryFailure(id, details) {
    throw new Error(`Failed to resolve entry for package "${id}". ` +
        `The package may have incorrect main/module/exports specified in its package.json` +
        (details ? ': ' + details : '.'));
}
function resolveExports(pkg, key, options, targetWeb) {
    const conditions = [options.isProduction ? 'production' : 'development'];
    if (!options.isRequire) {
        conditions.push('module');
    }
    if (options.conditions) {
        conditions.push(...options.conditions);
    }
    return resolve$1(pkg, key, {
        browser: targetWeb,
        require: options.isRequire,
        conditions
    });
}
function resolveDeepImport(id, { webResolvedImports, setResolvedCache, getResolvedCache, dir, data }, options, targetWeb, preserveSymlinks) {
    const cache = getResolvedCache(id, targetWeb);
    if (cache) {
        return cache;
    }
    let relativeId = id;
    const { exports: exportsField, browser: browserField } = data;
    // map relative based on exports data
    if (exportsField) {
        if (isObject$3(exportsField) && !Array.isArray(exportsField)) {
            relativeId = resolveExports(data, relativeId, options, targetWeb);
        }
        else {
            // not exposed
            relativeId = undefined;
        }
        if (!relativeId) {
            throw new Error(`Package subpath '${relativeId}' is not defined by "exports" in ` +
                `${path__default.join(dir, 'package.json')}.`);
        }
    }
    else if (targetWeb && isObject$3(browserField)) {
        const mapped = mapWithBrowserField(relativeId, browserField);
        if (mapped) {
            relativeId = mapped;
        }
        else if (mapped === false) {
            return (webResolvedImports[id] = browserExternalId);
        }
    }
    if (relativeId) {
        const resolved = tryFsResolve(path__default.join(dir, relativeId), options, preserveSymlinks, !exportsField, // try index only if no exports field
        targetWeb);
        if (resolved) {
            isDebug$5 &&
                debug$d(`[node/deep-import] ${source.cyan(id)} -> ${source.dim(resolved)}`);
            setResolvedCache(id, resolved, targetWeb);
            return resolved;
        }
    }
}
function tryResolveBrowserMapping(id, importer, options, isFilePath, preserveSymlinks) {
    let res;
    const pkg = importer && idToPkgMap.get(importer);
    if (pkg && isObject$3(pkg.data.browser)) {
        const mapId = isFilePath ? './' + slash$3(path__default.relative(pkg.dir, id)) : id;
        const browserMappedPath = mapWithBrowserField(mapId, pkg.data.browser);
        if (browserMappedPath) {
            const fsPath = path__default.join(pkg.dir, browserMappedPath);
            if ((res = tryFsResolve(fsPath, options, preserveSymlinks))) {
                isDebug$5 &&
                    debug$d(`[browser mapped] ${source.cyan(id)} -> ${source.dim(res)}`);
                idToPkgMap.set(res, pkg);
                return {
                    id: res,
                    moduleSideEffects: pkg.hasSideEffects(res)
                };
            }
        }
        else if (browserMappedPath === false) {
            return browserExternalId;
        }
    }
}
/**
 * given a relative path in pkg dir,
 * return a relative path in pkg dir,
 * mapped with the "map" object
 *
 * - Returning `undefined` means there is no browser mapping for this id
 * - Returning `false` means this id is explicitly externalized for browser
 */
function mapWithBrowserField(relativePathInPkgDir, map) {
    const normalizedPath = path__default.posix.normalize(relativePathInPkgDir);
    for (const key in map) {
        const normalizedKey = path__default.posix.normalize(key);
        if (normalizedPath === normalizedKey ||
            equalWithoutSuffix(normalizedPath, normalizedKey, '.js') ||
            equalWithoutSuffix(normalizedPath, normalizedKey, '/index.js')) {
            return map[key];
        }
    }
}
function equalWithoutSuffix(path, key, suffix) {
    return key.endsWith(suffix) && key.slice(0, -suffix.length) === path;
}
function getRealPath(resolved, preserveSymlinks) {
    resolved = ensureVolumeInPath(resolved);
    if (!preserveSymlinks && browserExternalId !== resolved) {
        resolved = fs__default.realpathSync(resolved);
    }
    return normalizePath$4(resolved);
}

const debug$c = createDebugger('vite:ssr-external');
/**
 * Heuristics for determining whether a dependency should be externalized for
 * server-side rendering.
 *
 * TODO right now externals are imported using require(), we probably need to
 * rework this when more libraries ship native ESM distributions for Node.
 */
function resolveSSRExternal(config, knownImports, ssrExternals = new Set(), seen = new Set()) {
    var _a, _b, _c, _d;
    if (((_a = config.ssr) === null || _a === void 0 ? void 0 : _a.noExternal) === true) {
        return [];
    }
    const { root } = config;
    const pkgContent = lookupFile(root, ['package.json']);
    if (!pkgContent) {
        return [];
    }
    const pkg = JSON.parse(pkgContent);
    const importedDeps = knownImports.map(getNpmPackageName).filter(isDefined);
    const deps = unique([
        ...importedDeps,
        ...Object.keys(pkg.devDependencies || {}),
        ...Object.keys(pkg.dependencies || {})
    ]);
    const resolveOptions = {
        root,
        isProduction: false,
        isBuild: true
    };
    const depsToTrace = new Set();
    for (const id of deps) {
        if (seen.has(id)) {
            continue;
        }
        seen.add(id);
        let entry;
        let requireEntry;
        try {
            entry = (_b = tryNodeResolve(id, undefined, resolveOptions, true, undefined, true)) === null || _b === void 0 ? void 0 : _b.id;
            // normalizePath required for windows. tryNodeResolve uses normalizePath
            // which returns with '/', require.resolve returns with '\\'
            requireEntry = normalizePath$4(require.resolve(id, { paths: [root] }));
        }
        catch (e) {
            // resolve failed, assume include
            debug$c(`Failed to resolve entries for package "${id}"\n`, e);
            continue;
        }
        if (!entry) {
            // no esm entry but has require entry (is this even possible?)
            ssrExternals.add(id);
            continue;
        }
        if (!entry.includes('node_modules')) {
            // entry is not a node dep, possibly linked - don't externalize
            // instead, trace its dependencies.
            depsToTrace.add(id);
            continue;
        }
        if (entry !== requireEntry) {
            // has separate esm/require entry, assume require entry is cjs
            ssrExternals.add(id);
        }
        else {
            // node resolve and esm resolve resolves to the same file.
            if (!/\.m?js$/.test(entry)) {
                // entry is not js, cannot externalize
                continue;
            }
            // check if the entry is cjs
            const content = fs__default.readFileSync(entry, 'utf-8');
            if (/\bmodule\.exports\b|\bexports[.\[]|\brequire\s*\(/.test(content)) {
                ssrExternals.add(id);
            }
        }
    }
    for (const id of depsToTrace) {
        const depRoot = path__default.dirname(resolveFrom$3(`${id}/package.json`, root, !!config.resolve.preserveSymlinks));
        resolveSSRExternal({
            ...config,
            root: depRoot
        }, knownImports, ssrExternals, seen);
    }
    if ((_c = config.ssr) === null || _c === void 0 ? void 0 : _c.external) {
        config.ssr.external.forEach((id) => ssrExternals.add(id));
    }
    let externals = [...ssrExternals];
    if ((_d = config.ssr) === null || _d === void 0 ? void 0 : _d.noExternal) {
        const filter = createFilter$1(undefined, config.ssr.noExternal, {
            resolve: false
        });
        externals = externals.filter((id) => filter(id));
    }
    return externals.filter((id) => id !== 'vite');
}
function shouldExternalizeForSSR(id, externals) {
    const should = externals.some((e) => {
        if (id === e) {
            return true;
        }
        // deep imports, check ext before externalizing - only externalize
        // extension-less imports and explicit .js imports
        if (id.startsWith(e + '/') && (!path__default.extname(id) || id.endsWith('.js'))) {
            return true;
        }
    });
    return should;
}
function getNpmPackageName(importPath) {
    const parts = importPath.split('/');
    if (parts[0].startsWith('@')) {
        if (!parts[1])
            return null;
        return `${parts[0]}/${parts[1]}`;
    }
    else {
        return parts[0];
    }
}

function ssrManifestPlugin(config) {
    // module id => preload assets mapping
    const ssrManifest = {};
    const base = config.base;
    return {
        name: 'vite:ssr-manifest',
        generateBundle(_options, bundle) {
            for (const file in bundle) {
                const chunk = bundle[file];
                if (chunk.type === 'chunk') {
                    // links for certain entry chunks are already generated in static HTML
                    // in those cases we only need to record info for non-entry chunks
                    const cssFiles = chunk.isEntry
                        ? null
                        : chunkToEmittedCssFileMap.get(chunk);
                    const assetFiles = chunkToEmittedAssetsMap.get(chunk);
                    for (const id in chunk.modules) {
                        const normalizedId = normalizePath$3(path$t.relative(config.root, id));
                        const mappedChunks = ssrManifest[normalizedId] || (ssrManifest[normalizedId] = []);
                        if (!chunk.isEntry) {
                            mappedChunks.push(base + chunk.fileName);
                        }
                        if (cssFiles) {
                            cssFiles.forEach((file) => {
                                mappedChunks.push(base + file);
                            });
                        }
                        if (assetFiles) {
                            assetFiles.forEach((file) => {
                                mappedChunks.push(base + file);
                            });
                        }
                    }
                }
            }
            this.emitFile({
                fileName: 'ssr-manifest.json',
                type: 'asset',
                source: JSON.stringify(ssrManifest, null, 2)
            });
        }
    };
}

// Reserved word lists for various dialects of the language

var reservedWords = {
  3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile",
  5: "class enum extends super const export import",
  6: "enum",
  strict: "implements interface let package private protected public static yield",
  strictBind: "eval arguments"
};

// And the keywords

var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";

var keywords = {
  5: ecma5AndLessKeywords,
  "5module": ecma5AndLessKeywords + " export import",
  6: ecma5AndLessKeywords + " const class extends export import super"
};

var keywordRelationalOperator = /^in(stanceof)?$/;

// ## Character categories

// Big ugly regular expressions that match characters in the
// whitespace, identifier, and identifier-start categories. These
// are only applied when a character is found to actually have a
// code point above 128.
// Generated by `bin/generate-identifier-regex.js`.
var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u08a0-\u08b4\u08b6-\u08c7\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d04-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e86-\u0e8a\u0e8c-\u0ea3\u0ea5\u0ea7-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5\u1cf6\u1cfa\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31bf\u31f0-\u31ff\u3400-\u4dbf\u4e00-\u9ffc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7bf\ua7c2-\ua7ca\ua7f5-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab69\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc";
var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d3-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d81-\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1abf\u1ac0\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf4\u1cf7-\u1cf9\u1dc0-\u1df9\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua82c\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f";

var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");

nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;

// These are a run-length and offset encoded representation of the
// >0xffff code points that are a valid part of identifiers. The
// offset starts at 0x10000, and each pair of numbers represents an
// offset to the next range, and then a size of the range. They were
// generated by bin/generate-identifier-regex.js

// eslint-disable-next-line comma-spacing
var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,14,29,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,28,43,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,14,35,349,41,7,1,79,28,11,0,9,21,107,20,28,22,13,52,76,44,33,24,27,35,30,0,3,0,9,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,21,2,31,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,14,0,72,26,230,43,117,63,32,7,3,0,3,7,2,1,2,23,16,0,2,0,95,7,3,38,17,0,2,0,29,0,11,39,8,0,22,0,12,45,20,0,35,56,264,8,2,36,18,0,50,29,113,6,2,1,2,37,22,0,26,5,2,1,2,31,15,0,328,18,190,0,80,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,689,63,129,74,6,0,67,12,65,1,2,0,29,6135,9,1237,43,8,8952,286,50,2,18,3,9,395,2309,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,2357,44,11,6,17,0,370,43,1301,196,60,67,8,0,1205,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42717,35,4148,12,221,3,5761,15,7472,3104,541,1507,4938];

// eslint-disable-next-line comma-spacing
var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,574,3,9,9,370,1,154,10,176,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,6,1,45,0,13,2,49,13,9,3,2,11,83,11,7,0,161,11,6,9,7,3,56,1,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,5,0,82,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,243,14,166,9,71,5,2,1,3,3,2,0,2,1,13,9,120,6,3,6,4,0,29,9,41,6,2,3,9,0,10,10,47,15,406,7,2,7,17,9,57,21,2,13,123,5,4,0,2,1,2,6,2,0,9,9,49,4,2,1,2,4,9,9,330,3,19306,9,135,4,60,6,26,9,1014,0,2,54,8,3,82,0,12,1,19628,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,262,6,10,9,419,13,1495,6,110,6,6,9,4759,9,787719,239];

// This has a complexity linear to the value of the code. The
// assumption is that looking up astral identifier characters is
// rare.
function isInAstralSet(code, set) {
  var pos = 0x10000;
  for (var i = 0; i < set.length; i += 2) {
    pos += set[i];
    if (pos > code) { return false }
    pos += set[i + 1];
    if (pos >= code) { return true }
  }
}

// Test whether a given character code starts an identifier.

function isIdentifierStart(code, astral) {
  if (code < 65) { return code === 36 }
  if (code < 91) { return true }
  if (code < 97) { return code === 95 }
  if (code < 123) { return true }
  if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) }
  if (astral === false) { return false }
  return isInAstralSet(code, astralIdentifierStartCodes)
}

// Test whether a given character is part of an identifier.

function isIdentifierChar(code, astral) {
  if (code < 48) { return code === 36 }
  if (code < 58) { return true }
  if (code < 65) { return false }
  if (code < 91) { return true }
  if (code < 97) { return code === 95 }
  if (code < 123) { return true }
  if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) }
  if (astral === false) { return false }
  return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)
}

// ## Token types

// The assignment of fine-grained, information-carrying type objects
// allows the tokenizer to store the information it has about a
// token in a way that is very cheap for the parser to look up.

// All token type variables start with an underscore, to make them
// easy to recognize.

// The `beforeExpr` property is used to disambiguate between regular
// expressions and divisions. It is set on all token types that can
// be followed by an expression (thus, a slash after them would be a
// regular expression).
//
// The `startsExpr` property is used to check if the token ends a
// `yield` expression. It is set on all token types that either can
// directly start an expression (like a quotation mark) or can
// continue an expression (like the body of a string).
//
// `isLoop` marks a keyword as starting a loop, which is important
// to know when parsing a label, in order to allow or disallow
// continue jumps to that label.

var TokenType = function TokenType(label, conf) {
  if ( conf === void 0 ) conf = {};

  this.label = label;
  this.keyword = conf.keyword;
  this.beforeExpr = !!conf.beforeExpr;
  this.startsExpr = !!conf.startsExpr;
  this.isLoop = !!conf.isLoop;
  this.isAssign = !!conf.isAssign;
  this.prefix = !!conf.prefix;
  this.postfix = !!conf.postfix;
  this.binop = conf.binop || null;
  this.updateContext = null;
};

function binop(name, prec) {
  return new TokenType(name, {beforeExpr: true, binop: prec})
}
var beforeExpr = {beforeExpr: true}, startsExpr = {startsExpr: true};

// Map keyword names to token types.

var keywords$1 = {};

// Succinct definitions of keyword token types
function kw(name, options) {
  if ( options === void 0 ) options = {};

  options.keyword = name;
  return keywords$1[name] = new TokenType(name, options)
}

var types = {
  num: new TokenType("num", startsExpr),
  regexp: new TokenType("regexp", startsExpr),
  string: new TokenType("string", startsExpr),
  name: new TokenType("name", startsExpr),
  privateId: new TokenType("privateId", startsExpr),
  eof: new TokenType("eof"),

  // Punctuation token types.
  bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
  bracketR: new TokenType("]"),
  braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
  braceR: new TokenType("}"),
  parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
  parenR: new TokenType(")"),
  comma: new TokenType(",", beforeExpr),
  semi: new TokenType(";", beforeExpr),
  colon: new TokenType(":", beforeExpr),
  dot: new TokenType("."),
  question: new TokenType("?", beforeExpr),
  questionDot: new TokenType("?."),
  arrow: new TokenType("=>", beforeExpr),
  template: new TokenType("template"),
  invalidTemplate: new TokenType("invalidTemplate"),
  ellipsis: new TokenType("...", beforeExpr),
  backQuote: new TokenType("`", startsExpr),
  dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),

  // Operators. These carry several kinds of properties to help the
  // parser use them properly (the presence of these properties is
  // what categorizes them as operators).
  //
  // `binop`, when present, specifies that this operator is a binary
  // operator, and will refer to its precedence.
  //
  // `prefix` and `postfix` mark the operator as a prefix or postfix
  // unary operator.
  //
  // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
  // binary operators with a very low precedence, that should result
  // in AssignmentExpression nodes.

  eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
  assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
  incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
  prefix: new TokenType("!/~", {beforeExpr: true, prefix: true, startsExpr: true}),
  logicalOR: binop("||", 1),
  logicalAND: binop("&&", 2),
  bitwiseOR: binop("|", 3),
  bitwiseXOR: binop("^", 4),
  bitwiseAND: binop("&", 5),
  equality: binop("==/!=/===/!==", 6),
  relational: binop("</>/<=/>=", 7),
  bitShift: binop("<</>>/>>>", 8),
  plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
  modulo: binop("%", 10),
  star: binop("*", 10),
  slash: binop("/", 10),
  starstar: new TokenType("**", {beforeExpr: true}),
  coalesce: binop("??", 1),

  // Keyword token types.
  _break: kw("break"),
  _case: kw("case", beforeExpr),
  _catch: kw("catch"),
  _continue: kw("continue"),
  _debugger: kw("debugger"),
  _default: kw("default", beforeExpr),
  _do: kw("do", {isLoop: true, beforeExpr: true}),
  _else: kw("else", beforeExpr),
  _finally: kw("finally"),
  _for: kw("for", {isLoop: true}),
  _function: kw("function", startsExpr),
  _if: kw("if"),
  _return: kw("return", beforeExpr),
  _switch: kw("switch"),
  _throw: kw("throw", beforeExpr),
  _try: kw("try"),
  _var: kw("var"),
  _const: kw("const"),
  _while: kw("while", {isLoop: true}),
  _with: kw("with"),
  _new: kw("new", {beforeExpr: true, startsExpr: true}),
  _this: kw("this", startsExpr),
  _super: kw("super", startsExpr),
  _class: kw("class", startsExpr),
  _extends: kw("extends", beforeExpr),
  _export: kw("export"),
  _import: kw("import", startsExpr),
  _null: kw("null", startsExpr),
  _true: kw("true", startsExpr),
  _false: kw("false", startsExpr),
  _in: kw("in", {beforeExpr: true, binop: 7}),
  _instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
  _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
  _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
  _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
};

// Matches a whole line break (where CRLF is considered a single
// line break). Used to count lines.

var lineBreak = /\r\n?|\n|\u2028|\u2029/;
var lineBreakG = new RegExp(lineBreak.source, "g");

function isNewLine(code) {
  return code === 10 || code === 13 || code === 0x2028 || code === 0x2029
}

var nonASCIIwhitespace = /[\u1680\u2000-\u200a\u202f\u205f\u3000\ufeff]/;

var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g;

var ref = Object.prototype;
var hasOwnProperty$1 = ref.hasOwnProperty;
var toString$1 = ref.toString;

// Checks if an object has a property.

function has$1(obj, propName) {
  return hasOwnProperty$1.call(obj, propName)
}

var isArray = Array.isArray || (function (obj) { return (
  toString$1.call(obj) === "[object Array]"
); });

function wordsRegexp(words) {
  return new RegExp("^(?:" + words.replace(/ /g, "|") + ")$")
}

// These are used when `options.locations` is on, for the
// `startLoc` and `endLoc` properties.

var Position = function Position(line, col) {
  this.line = line;
  this.column = col;
};

Position.prototype.offset = function offset (n) {
  return new Position(this.line, this.column + n)
};

var SourceLocation = function SourceLocation(p, start, end) {
  this.start = start;
  this.end = end;
  if (p.sourceFile !== null) { this.source = p.sourceFile; }
};

// The `getLineInfo` function is mostly useful when the
// `locations` option is off (for performance reasons) and you
// want to find the line/column position for a given character
// offset. `input` should be the code string that the offset refers
// into.

function getLineInfo(input, offset) {
  for (var line = 1, cur = 0;;) {
    lineBreakG.lastIndex = cur;
    var match = lineBreakG.exec(input);
    if (match && match.index < offset) {
      ++line;
      cur = match.index + match[0].length;
    } else {
      return new Position(line, offset - cur)
    }
  }
}

// A second argument must be given to configure the parser process.
// These options are recognized (only `ecmaVersion` is required):

var defaultOptions = {
  // `ecmaVersion` indicates the ECMAScript version to parse. Must be
  // either 3, 5, 6 (or 2015), 7 (2016), 8 (2017), 9 (2018), 10
  // (2019), 11 (2020), 12 (2021), 13 (2022), or `"latest"` (the
  // latest version the library supports). This influences support
  // for strict mode, the set of reserved words, and support for
  // new syntax features.
  ecmaVersion: null,
  // `sourceType` indicates the mode the code should be parsed in.
  // Can be either `"script"` or `"module"`. This influences global
  // strict mode and parsing of `import` and `export` declarations.
  sourceType: "script",
  // `onInsertedSemicolon` can be a callback that will be called
  // when a semicolon is automatically inserted. It will be passed
  // the position of the comma as an offset, and if `locations` is
  // enabled, it is given the location as a `{line, column}` object
  // as second argument.
  onInsertedSemicolon: null,
  // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
  // trailing commas.
  onTrailingComma: null,
  // By default, reserved words are only enforced if ecmaVersion >= 5.
  // Set `allowReserved` to a boolean value to explicitly turn this on
  // an off. When this option has the value "never", reserved words
  // and keywords can also not be used as property names.
  allowReserved: null,
  // When enabled, a return at the top level is not considered an
  // error.
  allowReturnOutsideFunction: false,
  // When enabled, import/export statements are not constrained to
  // appearing at the top of the program, and an import.meta expression
  // in a script isn't considered an error.
  allowImportExportEverywhere: false,
  // By default, await identifiers are allowed to appear at the top-level scope only if ecmaVersion >= 2022.
  // When enabled, await identifiers are allowed to appear at the top-level scope,
  // but they are still not allowed in non-async functions.
  allowAwaitOutsideFunction: null,
  // When enabled, super identifiers are not constrained to
  // appearing in methods and do not raise an error when they appear elsewhere.
  allowSuperOutsideMethod: null,
  // When enabled, hashbang directive in the beginning of file
  // is allowed and treated as a line comment.
  allowHashBang: false,
  // When `locations` is on, `loc` properties holding objects with
  // `start` and `end` properties in `{line, column}` form (with
  // line being 1-based and column 0-based) will be attached to the
  // nodes.
  locations: false,
  // A function can be passed as `onToken` option, which will
  // cause Acorn to call that function with object in the same
  // format as tokens returned from `tokenizer().getToken()`. Note
  // that you are not allowed to call the parser from the
  // callback—that will corrupt its internal state.
  onToken: null,
  // A function can be passed as `onComment` option, which will
  // cause Acorn to call that function with `(block, text, start,
  // end)` parameters whenever a comment is skipped. `block` is a
  // boolean indicating whether this is a block (`/* */`) comment,
  // `text` is the content of the comment, and `start` and `end` are
  // character offsets that denote the start and end of the comment.
  // When the `locations` option is on, two more parameters are
  // passed, the full `{line, column}` locations of the start and
  // end of the comments. Note that you are not allowed to call the
  // parser from the callback—that will corrupt its internal state.
  onComment: null,
  // Nodes have their start and end characters offsets recorded in
  // `start` and `end` properties (directly on the node, rather than
  // the `loc` object, which holds line/column data. To also add a
  // [semi-standardized][range] `range` property holding a `[start,
  // end]` array with the same numbers, set the `ranges` option to
  // `true`.
  //
  // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
  ranges: false,
  // It is possible to parse multiple files into a single AST by
  // passing the tree produced by parsing the first file as
  // `program` option in subsequent parses. This will add the
  // toplevel forms of the parsed file to the `Program` (top) node
  // of an existing parse tree.
  program: null,
  // When `locations` is on, you can pass this to record the source
  // file in every node's `loc` object.
  sourceFile: null,
  // This value, if given, is stored in every node, whether
  // `locations` is on or off.
  directSourceFile: null,
  // When enabled, parenthesized expressions are represented by
  // (non-standard) ParenthesizedExpression nodes
  preserveParens: false
};

// Interpret and default an options object

var warnedAboutEcmaVersion = false;

function getOptions(opts) {
  var options = {};

  for (var opt in defaultOptions)
    { options[opt] = opts && has$1(opts, opt) ? opts[opt] : defaultOptions[opt]; }

  if (options.ecmaVersion === "latest") {
    options.ecmaVersion = 1e8;
  } else if (options.ecmaVersion == null) {
    if (!warnedAboutEcmaVersion && typeof console === "object" && console.warn) {
      warnedAboutEcmaVersion = true;
      console.warn("Since Acorn 8.0.0, options.ecmaVersion is required.\nDefaulting to 2020, but this will stop working in the future.");
    }
    options.ecmaVersion = 11;
  } else if (options.ecmaVersion >= 2015) {
    options.ecmaVersion -= 2009;
  }

  if (options.allowReserved == null)
    { options.allowReserved = options.ecmaVersion < 5; }

  if (isArray(options.onToken)) {
    var tokens = options.onToken;
    options.onToken = function (token) { return tokens.push(token); };
  }
  if (isArray(options.onComment))
    { options.onComment = pushComment(options, options.onComment); }

  return options
}

function pushComment(options, array) {
  return function(block, text, start, end, startLoc, endLoc) {
    var comment = {
      type: block ? "Block" : "Line",
      value: text,
      start: start,
      end: end
    };
    if (options.locations)
      { comment.loc = new SourceLocation(this, startLoc, endLoc); }
    if (options.ranges)
      { comment.range = [start, end]; }
    array.push(comment);
  }
}

// Each scope gets a bitset that may contain these flags
var
    SCOPE_TOP = 1,
    SCOPE_FUNCTION = 2,
    SCOPE_ASYNC = 4,
    SCOPE_GENERATOR = 8,
    SCOPE_ARROW = 16,
    SCOPE_SIMPLE_CATCH = 32,
    SCOPE_SUPER = 64,
    SCOPE_DIRECT_SUPER = 128,
    SCOPE_CLASS_STATIC_BLOCK = 256,
    SCOPE_VAR = SCOPE_TOP | SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK;

function functionFlags(async, generator) {
  return SCOPE_FUNCTION | (async ? SCOPE_ASYNC : 0) | (generator ? SCOPE_GENERATOR : 0)
}

// Used in checkLVal* and declareName to determine the type of a binding
var
    BIND_NONE = 0, // Not a binding
    BIND_VAR = 1, // Var-style binding
    BIND_LEXICAL = 2, // Let- or const-style binding
    BIND_FUNCTION = 3, // Function declaration
    BIND_SIMPLE_CATCH = 4, // Simple (identifier pattern) catch binding
    BIND_OUTSIDE = 5; // Special case for function names as bound inside the function

var Parser = function Parser(options, input, startPos) {
  this.options = options = getOptions(options);
  this.sourceFile = options.sourceFile;
  this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
  var reserved = "";
  if (options.allowReserved !== true) {
    reserved = reservedWords[options.ecmaVersion >= 6 ? 6 : options.ecmaVersion === 5 ? 5 : 3];
    if (options.sourceType === "module") { reserved += " await"; }
  }
  this.reservedWords = wordsRegexp(reserved);
  var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict;
  this.reservedWordsStrict = wordsRegexp(reservedStrict);
  this.reservedWordsStrictBind = wordsRegexp(reservedStrict + " " + reservedWords.strictBind);
  this.input = String(input);

  // Used to signal to callers of `readWord1` whether the word
  // contained any escape sequences. This is needed because words with
  // escape sequences must not be interpreted as keywords.
  this.containsEsc = false;

  // Set up token state

  // The current position of the tokenizer in the input.
  if (startPos) {
    this.pos = startPos;
    this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
    this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
  } else {
    this.pos = this.lineStart = 0;
    this.curLine = 1;
  }

  // Properties of the current token:
  // Its type
  this.type = types.eof;
  // For tokens that include more information than their type, the value
  this.value = null;
  // Its start and end offset
  this.start = this.end = this.pos;
  // And, if locations are used, the {line, column} object
  // corresponding to those offsets
  this.startLoc = this.endLoc = this.curPosition();

  // Position information for the previous token
  this.lastTokEndLoc = this.lastTokStartLoc = null;
  this.lastTokStart = this.lastTokEnd = this.pos;

  // The context stack is used to superficially track syntactic
  // context to predict whether a regular expression is allowed in a
  // given position.
  this.context = this.initialContext();
  this.exprAllowed = true;

  // Figure out if it's a module code.
  this.inModule = options.sourceType === "module";
  this.strict = this.inModule || this.strictDirective(this.pos);

  // Used to signify the start of a potential arrow function
  this.potentialArrowAt = -1;
  this.potentialArrowInForAwait = false;

  // Positions to delayed-check that yield/await does not exist in default parameters.
  this.yieldPos = this.awaitPos = this.awaitIdentPos = 0;
  // Labels in scope.
  this.labels = [];
  // Thus-far undefined exports.
  this.undefinedExports = Object.create(null);

  // If enabled, skip leading hashbang line.
  if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
    { this.skipLineComment(2); }

  // Scope tracking for duplicate variable names (see scope.js)
  this.scopeStack = [];
  this.enterScope(SCOPE_TOP);

  // For RegExp validation
  this.regexpState = null;

  // The stack of private names.
  // Each element has two properties: 'declared' and 'used'.
  // When it exited from the outermost class definition, all used private names must be declared.
  this.privateNameStack = [];
};

var prototypeAccessors = { inFunction: { configurable: true },inGenerator: { configurable: true },inAsync: { configurable: true },canAwait: { configurable: true },allowSuper: { configurable: true },allowDirectSuper: { configurable: true },treatFunctionsAsVar: { configurable: true },allowNewDotTarget: { configurable: true },inClassStaticBlock: { configurable: true } };

Parser.prototype.parse = function parse () {
  var node = this.options.program || this.startNode();
  this.nextToken();
  return this.parseTopLevel(node)
};

prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 && !this.currentVarScope().inClassFieldInit };
prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 && !this.currentVarScope().inClassFieldInit };
prototypeAccessors.canAwait.get = function () {
  for (var i = this.scopeStack.length - 1; i >= 0; i--) {
    var scope = this.scopeStack[i];
    if (scope.inClassFieldInit || scope.flags & SCOPE_CLASS_STATIC_BLOCK) { return false }
    if (scope.flags & SCOPE_FUNCTION) { return (scope.flags & SCOPE_ASYNC) > 0 }
  }
  return (this.inModule && this.options.ecmaVersion >= 13) || this.options.allowAwaitOutsideFunction
};
prototypeAccessors.allowSuper.get = function () {
  var ref = this.currentThisScope();
    var flags = ref.flags;
    var inClassFieldInit = ref.inClassFieldInit;
  return (flags & SCOPE_SUPER) > 0 || inClassFieldInit || this.options.allowSuperOutsideMethod
};
prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) };
prototypeAccessors.allowNewDotTarget.get = function () {
  var ref = this.currentThisScope();
    var flags = ref.flags;
    var inClassFieldInit = ref.inClassFieldInit;
  return (flags & (SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK)) > 0 || inClassFieldInit
};
prototypeAccessors.inClassStaticBlock.get = function () {
  return (this.currentVarScope().flags & SCOPE_CLASS_STATIC_BLOCK) > 0
};

Parser.extend = function extend () {
    var plugins = [], len = arguments.length;
    while ( len-- ) plugins[ len ] = arguments[ len ];

  var cls = this;
  for (var i = 0; i < plugins.length; i++) { cls = plugins[i](cls); }
  return cls
};

Parser.parse = function parse (input, options) {
  return new this(options, input).parse()
};

Parser.parseExpressionAt = function parseExpressionAt (input, pos, options) {
  var parser = new this(options, input, pos);
  parser.nextToken();
  return parser.parseExpression()
};

Parser.tokenizer = function tokenizer (input, options) {
  return new this(options, input)
};

Object.defineProperties( Parser.prototype, prototypeAccessors );

var pp = Parser.prototype;

// ## Parser utilities

var literal = /^(?:'((?:\\.|[^'\\])*?)'|"((?:\\.|[^"\\])*?)")/;
pp.strictDirective = function(start) {
  for (;;) {
    // Try to find string literal.
    skipWhiteSpace.lastIndex = start;
    start += skipWhiteSpace.exec(this.input)[0].length;
    var match = literal.exec(this.input.slice(start));
    if (!match) { return false }
    if ((match[1] || match[2]) === "use strict") {
      skipWhiteSpace.lastIndex = start + match[0].length;
      var spaceAfter = skipWhiteSpace.exec(this.input), end = spaceAfter.index + spaceAfter[0].length;
      var next = this.input.charAt(end);
      return next === ";" || next === "}" ||
        (lineBreak.test(spaceAfter[0]) &&
         !(/[(`.[+\-/*%<>=,?^&]/.test(next) || next === "!" && this.input.charAt(end + 1) === "="))
    }
    start += match[0].length;

    // Skip semicolon, if any.
    skipWhiteSpace.lastIndex = start;
    start += skipWhiteSpace.exec(this.input)[0].length;
    if (this.input[start] === ";")
      { start++; }
  }
};

// Predicate that tests whether the next token is of the given
// type, and if yes, consumes it as a side effect.

pp.eat = function(type) {
  if (this.type === type) {
    this.next();
    return true
  } else {
    return false
  }
};

// Tests whether parsed token is a contextual keyword.

pp.isContextual = function(name) {
  return this.type === types.name && this.value === name && !this.containsEsc
};

// Consumes contextual keyword if possible.

pp.eatContextual = function(name) {
  if (!this.isContextual(name)) { return false }
  this.next();
  return true
};

// Asserts that following token is given contextual keyword.

pp.expectContextual = function(name) {
  if (!this.eatContextual(name)) { this.unexpected(); }
};

// Test whether a semicolon can be inserted at the current position.

pp.canInsertSemicolon = function() {
  return this.type === types.eof ||
    this.type === types.braceR ||
    lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
};

pp.insertSemicolon = function() {
  if (this.canInsertSemicolon()) {
    if (this.options.onInsertedSemicolon)
      { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
    return true
  }
};

// Consume a semicolon, or, failing that, see if we are allowed to
// pretend that there is a semicolon at this position.

pp.semicolon = function() {
  if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
};

pp.afterTrailingComma = function(tokType, notNext) {
  if (this.type === tokType) {
    if (this.options.onTrailingComma)
      { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
    if (!notNext)
      { this.next(); }
    return true
  }
};

// Expect a token of a given type. If found, consume it, otherwise,
// raise an unexpected token error.

pp.expect = function(type) {
  this.eat(type) || this.unexpected();
};

// Raise an unexpected token error.

pp.unexpected = function(pos) {
  this.raise(pos != null ? pos : this.start, "Unexpected token");
};

function DestructuringErrors() {
  this.shorthandAssign =
  this.trailingComma =
  this.parenthesizedAssign =
  this.parenthesizedBind =
  this.doubleProto =
    -1;
}

pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
  if (!refDestructuringErrors) { return }
  if (refDestructuringErrors.trailingComma > -1)
    { this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); }
  var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind;
  if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
};

pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
  if (!refDestructuringErrors) { return false }
  var shorthandAssign = refDestructuringErrors.shorthandAssign;
  var doubleProto = refDestructuringErrors.doubleProto;
  if (!andThrow) { return shorthandAssign >= 0 || doubleProto >= 0 }
  if (shorthandAssign >= 0)
    { this.raise(shorthandAssign, "Shorthand property assignments are valid only in destructuring patterns"); }
  if (doubleProto >= 0)
    { this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property"); }
};

pp.checkYieldAwaitInDefaultParams = function() {
  if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
    { this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
  if (this.awaitPos)
    { this.raise(this.awaitPos, "Await expression cannot be a default value"); }
};

pp.isSimpleAssignTarget = function(expr) {
  if (expr.type === "ParenthesizedExpression")
    { return this.isSimpleAssignTarget(expr.expression) }
  return expr.type === "Identifier" || expr.type === "MemberExpression"
};

var pp$1 = Parser.prototype;

// ### Statement parsing

// Parse a program. Initializes the parser, reads any number of
// statements, and wraps them in a Program node.  Optionally takes a
// `program` argument.  If present, the statements will be appended
// to its body instead of creating a new node.

pp$1.parseTopLevel = function(node) {
  var exports = Object.create(null);
  if (!node.body) { node.body = []; }
  while (this.type !== types.eof) {
    var stmt = this.parseStatement(null, true, exports);
    node.body.push(stmt);
  }
  if (this.inModule)
    { for (var i = 0, list = Object.keys(this.undefinedExports); i < list.length; i += 1)
      {
        var name = list[i];

        this.raiseRecoverable(this.undefinedExports[name].start, ("Export '" + name + "' is not defined"));
      } }
  this.adaptDirectivePrologue(node.body);
  this.next();
  node.sourceType = this.options.sourceType;
  return this.finishNode(node, "Program")
};

var loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"};

pp$1.isLet = function(context) {
  if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false }
  skipWhiteSpace.lastIndex = this.pos;
  var skip = skipWhiteSpace.exec(this.input);
  var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
  // For ambiguous cases, determine if a LexicalDeclaration (or only a
  // Statement) is allowed here. If context is not empty then only a Statement
  // is allowed. However, `let [` is an explicit negative lookahead for
  // ExpressionStatement, so special-case it first.
  if (nextCh === 91 || nextCh === 92 || nextCh > 0xd7ff && nextCh < 0xdc00) { return true } // '[', '/', astral
  if (context) { return false }

  if (nextCh === 123) { return true } // '{'
  if (isIdentifierStart(nextCh, true)) {
    var pos = next + 1;
    while (isIdentifierChar(nextCh = this.input.charCodeAt(pos), true)) { ++pos; }
    if (nextCh === 92 || nextCh > 0xd7ff && nextCh < 0xdc00) { return true }
    var ident = this.input.slice(next, pos);
    if (!keywordRelationalOperator.test(ident)) { return true }
  }
  return false
};

// check 'async [no LineTerminator here] function'
// - 'async /*foo*/ function' is OK.
// - 'async /*\n*/ function' is invalid.
pp$1.isAsyncFunction = function() {
  if (this.options.ecmaVersion < 8 || !this.isContextual("async"))
    { return false }

  skipWhiteSpace.lastIndex = this.pos;
  var skip = skipWhiteSpace.exec(this.input);
  var next = this.pos + skip[0].length, after;
  return !lineBreak.test(this.input.slice(this.pos, next)) &&
    this.input.slice(next, next + 8) === "function" &&
    (next + 8 === this.input.length ||
     !(isIdentifierChar(after = this.input.charCodeAt(next + 8)) || after > 0xd7ff && after < 0xdc00))
};

// Parse a single statement.
//
// If expecting a statement and finding a slash operator, parse a
// regular expression literal. This is to handle cases like
// `if (foo) /blah/.exec(foo)`, where looking at the previous token
// does not help.

pp$1.parseStatement = function(context, topLevel, exports) {
  var starttype = this.type, node = this.startNode(), kind;

  if (this.isLet(context)) {
    starttype = types._var;
    kind = "let";
  }

  // Most types of statements are recognized by the keyword they
  // start with. Many are trivial to parse, some require a bit of
  // complexity.

  switch (starttype) {
  case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
  case types._debugger: return this.parseDebuggerStatement(node)
  case types._do: return this.parseDoStatement(node)
  case types._for: return this.parseForStatement(node)
  case types._function:
    // Function as sole body of either an if statement or a labeled statement
    // works, but not when it is part of a labeled statement that is the sole
    // body of an if statement.
    if ((context && (this.strict || context !== "if" && context !== "label")) && this.options.ecmaVersion >= 6) { this.unexpected(); }
    return this.parseFunctionStatement(node, false, !context)
  case types._class:
    if (context) { this.unexpected(); }
    return this.parseClass(node, true)
  case types._if: return this.parseIfStatement(node)
  case types._return: return this.parseReturnStatement(node)
  case types._switch: return this.parseSwitchStatement(node)
  case types._throw: return this.parseThrowStatement(node)
  case types._try: return this.parseTryStatement(node)
  case types._const: case types._var:
    kind = kind || this.value;
    if (context && kind !== "var") { this.unexpected(); }
    return this.parseVarStatement(node, kind)
  case types._while: return this.parseWhileStatement(node)
  case types._with: return this.parseWithStatement(node)
  case types.braceL: return this.parseBlock(true, node)
  case types.semi: return this.parseEmptyStatement(node)
  case types._export:
  case types._import:
    if (this.options.ecmaVersion > 10 && starttype === types._import) {
      skipWhiteSpace.lastIndex = this.pos;
      var skip = skipWhiteSpace.exec(this.input);
      var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
      if (nextCh === 40 || nextCh === 46) // '(' or '.'
        { return this.parseExpressionStatement(node, this.parseExpression()) }
    }

    if (!this.options.allowImportExportEverywhere) {
      if (!topLevel)
        { this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
      if (!this.inModule)
        { this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); }
    }
    return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports)

    // If the statement does not start with a statement keyword or a
    // brace, it's an ExpressionStatement or LabeledStatement. We
    // simply start parsing an expression, and afterwards, if the
    // next token is a colon and the expression was a simple
    // Identifier node, we switch to interpreting it as a label.
  default:
    if (this.isAsyncFunction()) {
      if (context) { this.unexpected(); }
      this.next();
      return this.parseFunctionStatement(node, true, !context)
    }

    var maybeName = this.value, expr = this.parseExpression();
    if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
      { return this.parseLabeledStatement(node, maybeName, expr, context) }
    else { return this.parseExpressionStatement(node, expr) }
  }
};

pp$1.parseBreakContinueStatement = function(node, keyword) {
  var isBreak = keyword === "break";
  this.next();
  if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
  else if (this.type !== types.name) { this.unexpected(); }
  else {
    node.label = this.parseIdent();
    this.semicolon();
  }

  // Verify that there is an actual destination to break or
  // continue to.
  var i = 0;
  for (; i < this.labels.length; ++i) {
    var lab = this.labels[i];
    if (node.label == null || lab.name === node.label.name) {
      if (lab.kind != null && (isBreak || lab.kind === "loop")) { break }
      if (node.label && isBreak) { break }
    }
  }
  if (i === this.labels.length) { this.raise(node.start, "Unsyntactic " + keyword); }
  return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
};

pp$1.parseDebuggerStatement = function(node) {
  this.next();
  this.semicolon();
  return this.finishNode(node, "DebuggerStatement")
};

pp$1.parseDoStatement = function(node) {
  this.next();
  this.labels.push(loopLabel);
  node.body = this.parseStatement("do");
  this.labels.pop();
  this.expect(types._while);
  node.test = this.parseParenExpression();
  if (this.options.ecmaVersion >= 6)
    { this.eat(types.semi); }
  else
    { this.semicolon(); }
  return this.finishNode(node, "DoWhileStatement")
};

// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
// loop is non-trivial. Basically, we have to parse the init `var`
// statement or expression, disallowing the `in` operator (see
// the second parameter to `parseExpression`), and then check
// whether the next token is `in` or `of`. When there is no init
// part (semicolon immediately after the opening parenthesis), it
// is a regular `for` loop.

pp$1.parseForStatement = function(node) {
  this.next();
  var awaitAt = (this.options.ecmaVersion >= 9 && this.canAwait && this.eatContextual("await")) ? this.lastTokStart : -1;
  this.labels.push(loopLabel);
  this.enterScope(0);
  this.expect(types.parenL);
  if (this.type === types.semi) {
    if (awaitAt > -1) { this.unexpected(awaitAt); }
    return this.parseFor(node, null)
  }
  var isLet = this.isLet();
  if (this.type === types._var || this.type === types._const || isLet) {
    var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
    this.next();
    this.parseVar(init$1, true, kind);
    this.finishNode(init$1, "VariableDeclaration");
    if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1) {
      if (this.options.ecmaVersion >= 9) {
        if (this.type === types._in) {
          if (awaitAt > -1) { this.unexpected(awaitAt); }
        } else { node.await = awaitAt > -1; }
      }
      return this.parseForIn(node, init$1)
    }
    if (awaitAt > -1) { this.unexpected(awaitAt); }
    return this.parseFor(node, init$1)
  }
  var startsWithLet = this.isContextual("let"), isForOf = false;
  var refDestructuringErrors = new DestructuringErrors;
  var init = this.parseExpression(awaitAt > -1 ? "await" : true, refDestructuringErrors);
  if (this.type === types._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
    if (this.options.ecmaVersion >= 9) {
      if (this.type === types._in) {
        if (awaitAt > -1) { this.unexpected(awaitAt); }
      } else { node.await = awaitAt > -1; }
    }
    if (startsWithLet && isForOf) { this.raise(init.start, "The left-hand side of a for-of loop may not start with 'let'."); }
    this.toAssignable(init, false, refDestructuringErrors);
    this.checkLValPattern(init);
    return this.parseForIn(node, init)
  } else {
    this.checkExpressionErrors(refDestructuringErrors, true);
  }
  if (awaitAt > -1) { this.unexpected(awaitAt); }
  return this.parseFor(node, init)
};

pp$1.parseFunctionStatement = function(node, isAsync, declarationPosition) {
  this.next();
  return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), false, isAsync)
};

pp$1.parseIfStatement = function(node) {
  this.next();
  node.test = this.parseParenExpression();
  // allow function declarations in branches, but only in non-strict mode
  node.consequent = this.parseStatement("if");
  node.alternate = this.eat(types._else) ? this.parseStatement("if") : null;
  return this.finishNode(node, "IfStatement")
};

pp$1.parseReturnStatement = function(node) {
  if (!this.inFunction && !this.options.allowReturnOutsideFunction)
    { this.raise(this.start, "'return' outside of function"); }
  this.next();

  // In `return` (and `break`/`continue`), the keywords with
  // optional arguments, we eagerly look for a semicolon or the
  // possibility to insert one.

  if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; }
  else { node.argument = this.parseExpression(); this.semicolon(); }
  return this.finishNode(node, "ReturnStatement")
};

pp$1.parseSwitchStatement = function(node) {
  this.next();
  node.discriminant = this.parseParenExpression();
  node.cases = [];
  this.expect(types.braceL);
  this.labels.push(switchLabel);
  this.enterScope(0);

  // Statements under must be grouped (by label) in SwitchCase
  // nodes. `cur` is used to keep the node that we are currently
  // adding statements to.

  var cur;
  for (var sawDefault = false; this.type !== types.braceR;) {
    if (this.type === types._case || this.type === types._default) {
      var isCase = this.type === types._case;
      if (cur) { this.finishNode(cur, "SwitchCase"); }
      node.cases.push(cur = this.startNode());
      cur.consequent = [];
      this.next();
      if (isCase) {
        cur.test = this.parseExpression();
      } else {
        if (sawDefault) { this.raiseRecoverable(this.lastTokStart, "Multiple default clauses"); }
        sawDefault = true;
        cur.test = null;
      }
      this.expect(types.colon);
    } else {
      if (!cur) { this.unexpected(); }
      cur.consequent.push(this.parseStatement(null));
    }
  }
  this.exitScope();
  if (cur) { this.finishNode(cur, "SwitchCase"); }
  this.next(); // Closing brace
  this.labels.pop();
  return this.finishNode(node, "SwitchStatement")
};

pp$1.parseThrowStatement = function(node) {
  this.next();
  if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
    { this.raise(this.lastTokEnd, "Illegal newline after throw"); }
  node.argument = this.parseExpression();
  this.semicolon();
  return this.finishNode(node, "ThrowStatement")
};

// Reused empty array added for node fields that are always empty.

var empty = [];

pp$1.parseTryStatement = function(node) {
  this.next();
  node.block = this.parseBlock();
  node.handler = null;
  if (this.type === types._catch) {
    var clause = this.startNode();
    this.next();
    if (this.eat(types.parenL)) {
      clause.param = this.parseBindingAtom();
      var simple = clause.param.type === "Identifier";
      this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0);
      this.checkLValPattern(clause.param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL);
      this.expect(types.parenR);
    } else {
      if (this.options.ecmaVersion < 10) { this.unexpected(); }
      clause.param = null;
      this.enterScope(0);
    }
    clause.body = this.parseBlock(false);
    this.exitScope();
    node.handler = this.finishNode(clause, "CatchClause");
  }
  node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
  if (!node.handler && !node.finalizer)
    { this.raise(node.start, "Missing catch or finally clause"); }
  return this.finishNode(node, "TryStatement")
};

pp$1.parseVarStatement = function(node, kind) {
  this.next();
  this.parseVar(node, false, kind);
  this.semicolon();
  return this.finishNode(node, "VariableDeclaration")
};

pp$1.parseWhileStatement = function(node) {
  this.next();
  node.test = this.parseParenExpression();
  this.labels.push(loopLabel);
  node.body = this.parseStatement("while");
  this.labels.pop();
  return this.finishNode(node, "WhileStatement")
};

pp$1.parseWithStatement = function(node) {
  if (this.strict) { this.raise(this.start, "'with' in strict mode"); }
  this.next();
  node.object = this.parseParenExpression();
  node.body = this.parseStatement("with");
  return this.finishNode(node, "WithStatement")
};

pp$1.parseEmptyStatement = function(node) {
  this.next();
  return this.finishNode(node, "EmptyStatement")
};

pp$1.parseLabeledStatement = function(node, maybeName, expr, context) {
  for (var i$1 = 0, list = this.labels; i$1 < list.length; i$1 += 1)
    {
    var label = list[i$1];

    if (label.name === maybeName)
      { this.raise(expr.start, "Label '" + maybeName + "' is already declared");
  } }
  var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null;
  for (var i = this.labels.length - 1; i >= 0; i--) {
    var label$1 = this.labels[i];
    if (label$1.statementStart === node.start) {
      // Update information about previous labels on this node
      label$1.statementStart = this.start;
      label$1.kind = kind;
    } else { break }
  }
  this.labels.push({name: maybeName, kind: kind, statementStart: this.start});
  node.body = this.parseStatement(context ? context.indexOf("label") === -1 ? context + "label" : context : "label");
  this.labels.pop();
  node.label = expr;
  return this.finishNode(node, "LabeledStatement")
};

pp$1.parseExpressionStatement = function(node, expr) {
  node.expression = expr;
  this.semicolon();
  return this.finishNode(node, "ExpressionStatement")
};

// Parse a semicolon-enclosed block of statements, handling `"use
// strict"` declarations when `allowStrict` is true (used for
// function bodies).

pp$1.parseBlock = function(createNewLexicalScope, node, exitStrict) {
  if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;
  if ( node === void 0 ) node = this.startNode();

  node.body = [];
  this.expect(types.braceL);
  if (createNewLexicalScope) { this.enterScope(0); }
  while (this.type !== types.braceR) {
    var stmt = this.parseStatement(null);
    node.body.push(stmt);
  }
  if (exitStrict) { this.strict = false; }
  this.next();
  if (createNewLexicalScope) { this.exitScope(); }
  return this.finishNode(node, "BlockStatement")
};

// Parse a regular `for` loop. The disambiguation code in
// `parseStatement` will already have parsed the init statement or
// expression.

pp$1.parseFor = function(node, init) {
  node.init = init;
  this.expect(types.semi);
  node.test = this.type === types.semi ? null : this.parseExpression();
  this.expect(types.semi);
  node.update = this.type === types.parenR ? null : this.parseExpression();
  this.expect(types.parenR);
  node.body = this.parseStatement("for");
  this.exitScope();
  this.labels.pop();
  return this.finishNode(node, "ForStatement")
};

// Parse a `for`/`in` and `for`/`of` loop, which are almost
// same from parser's perspective.

pp$1.parseForIn = function(node, init) {
  var isForIn = this.type === types._in;
  this.next();

  if (
    init.type === "VariableDeclaration" &&
    init.declarations[0].init != null &&
    (
      !isForIn ||
      this.options.ecmaVersion < 8 ||
      this.strict ||
      init.kind !== "var" ||
      init.declarations[0].id.type !== "Identifier"
    )
  ) {
    this.raise(
      init.start,
      ((isForIn ? "for-in" : "for-of") + " loop variable declaration may not have an initializer")
    );
  }
  node.left = init;
  node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign();
  this.expect(types.parenR);
  node.body = this.parseStatement("for");
  this.exitScope();
  this.labels.pop();
  return this.finishNode(node, isForIn ? "ForInStatement" : "ForOfStatement")
};

// Parse a list of variable declarations.

pp$1.parseVar = function(node, isFor, kind) {
  node.declarations = [];
  node.kind = kind;
  for (;;) {
    var decl = this.startNode();
    this.parseVarId(decl, kind);
    if (this.eat(types.eq)) {
      decl.init = this.parseMaybeAssign(isFor);
    } else if (kind === "const" && !(this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
      this.unexpected();
    } else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types._in || this.isContextual("of")))) {
      this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
    } else {
      decl.init = null;
    }
    node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
    if (!this.eat(types.comma)) { break }
  }
  return node
};

pp$1.parseVarId = function(decl, kind) {
  decl.id = this.parseBindingAtom();
  this.checkLValPattern(decl.id, kind === "var" ? BIND_VAR : BIND_LEXICAL, false);
};

var FUNC_STATEMENT = 1, FUNC_HANGING_STATEMENT = 2, FUNC_NULLABLE_ID = 4;

// Parse a function declaration or literal (depending on the
// `statement & FUNC_STATEMENT`).

// Remove `allowExpressionBody` for 7.0.0, as it is only called with false
pp$1.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) {
  this.initFunction(node);
  if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) {
    if (this.type === types.star && (statement & FUNC_HANGING_STATEMENT))
      { this.unexpected(); }
    node.generator = this.eat(types.star);
  }
  if (this.options.ecmaVersion >= 8)
    { node.async = !!isAsync; }

  if (statement & FUNC_STATEMENT) {
    node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types.name ? null : this.parseIdent();
    if (node.id && !(statement & FUNC_HANGING_STATEMENT))
      // If it is a regular function declaration in sloppy mode, then it is
      // subject to Annex B semantics (BIND_FUNCTION). Otherwise, the binding
      // mode depends on properties of the current scope (see
      // treatFunctionsAsVar).
      { this.checkLValSimple(node.id, (this.strict || node.generator || node.async) ? this.treatFunctionsAsVar ? BIND_VAR : BIND_LEXICAL : BIND_FUNCTION); }
  }

  var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
  this.yieldPos = 0;
  this.awaitPos = 0;
  this.awaitIdentPos = 0;
  this.enterScope(functionFlags(node.async, node.generator));

  if (!(statement & FUNC_STATEMENT))
    { node.id = this.type === types.name ? this.parseIdent() : null; }

  this.parseFunctionParams(node);
  this.parseFunctionBody(node, allowExpressionBody, false, forInit);

  this.yieldPos = oldYieldPos;
  this.awaitPos = oldAwaitPos;
  this.awaitIdentPos = oldAwaitIdentPos;
  return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression")
};

pp$1.parseFunctionParams = function(node) {
  this.expect(types.parenL);
  node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
  this.checkYieldAwaitInDefaultParams();
};

// Parse a class declaration or literal (depending on the
// `isStatement` parameter).

pp$1.parseClass = function(node, isStatement) {
  this.next();

  // ecma-262 14.6 Class Definitions
  // A class definition is always strict mode code.
  var oldStrict = this.strict;
  this.strict = true;

  this.parseClassId(node, isStatement);
  this.parseClassSuper(node);
  var privateNameMap = this.enterClassBody();
  var classBody = this.startNode();
  var hadConstructor = false;
  classBody.body = [];
  this.expect(types.braceL);
  while (this.type !== types.braceR) {
    var element = this.parseClassElement(node.superClass !== null);
    if (element) {
      classBody.body.push(element);
      if (element.type === "MethodDefinition" && element.kind === "constructor") {
        if (hadConstructor) { this.raise(element.start, "Duplicate constructor in the same class"); }
        hadConstructor = true;
      } else if (element.key && element.key.type === "PrivateIdentifier" && isPrivateNameConflicted(privateNameMap, element)) {
        this.raiseRecoverable(element.key.start, ("Identifier '#" + (element.key.name) + "' has already been declared"));
      }
    }
  }
  this.strict = oldStrict;
  this.next();
  node.body = this.finishNode(classBody, "ClassBody");
  this.exitClassBody();
  return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
};

pp$1.parseClassElement = function(constructorAllowsSuper) {
  if (this.eat(types.semi)) { return null }

  var ecmaVersion = this.options.ecmaVersion;
  var node = this.startNode();
  var keyName = "";
  var isGenerator = false;
  var isAsync = false;
  var kind = "method";
  var isStatic = false;

  if (this.eatContextual("static")) {
    // Parse static init block
    if (ecmaVersion >= 13 && this.eat(types.braceL)) {
      this.parseClassStaticBlock(node);
      return node
    }
    if (this.isClassElementNameStart() || this.type === types.star) {
      isStatic = true;
    } else {
      keyName = "static";
    }
  }
  node.static = isStatic;
  if (!keyName && ecmaVersion >= 8 && this.eatContextual("async")) {
    if ((this.isClassElementNameStart() || this.type === types.star) && !this.canInsertSemicolon()) {
      isAsync = true;
    } else {
      keyName = "async";
    }
  }
  if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(types.star)) {
    isGenerator = true;
  }
  if (!keyName && !isAsync && !isGenerator) {
    var lastValue = this.value;
    if (this.eatContextual("get") || this.eatContextual("set")) {
      if (this.isClassElementNameStart()) {
        kind = lastValue;
      } else {
        keyName = lastValue;
      }
    }
  }

  // Parse element name
  if (keyName) {
    // 'async', 'get', 'set', or 'static' were not a keyword contextually.
    // The last token is any of those. Make it the element name.
    node.computed = false;
    node.key = this.startNodeAt(this.lastTokStart, this.lastTokStartLoc);
    node.key.name = keyName;
    this.finishNode(node.key, "Identifier");
  } else {
    this.parseClassElementName(node);
  }

  // Parse element value
  if (ecmaVersion < 13 || this.type === types.parenL || kind !== "method" || isGenerator || isAsync) {
    var isConstructor = !node.static && checkKeyName(node, "constructor");
    var allowsDirectSuper = isConstructor && constructorAllowsSuper;
    // Couldn't move this check into the 'parseClassMethod' method for backward compatibility.
    if (isConstructor && kind !== "method") { this.raise(node.key.start, "Constructor can't have get/set modifier"); }
    node.kind = isConstructor ? "constructor" : kind;
    this.parseClassMethod(node, isGenerator, isAsync, allowsDirectSuper);
  } else {
    this.parseClassField(node);
  }

  return node
};

pp$1.isClassElementNameStart = function() {
  return (
    this.type === types.name ||
    this.type === types.privateId ||
    this.type === types.num ||
    this.type === types.string ||
    this.type === types.bracketL ||
    this.type.keyword
  )
};

pp$1.parseClassElementName = function(element) {
  if (this.type === types.privateId) {
    if (this.value === "constructor") {
      this.raise(this.start, "Classes can't have an element named '#constructor'");
    }
    element.computed = false;
    element.key = this.parsePrivateIdent();
  } else {
    this.parsePropertyName(element);
  }
};

pp$1.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) {
  // Check key and flags
  var key = method.key;
  if (method.kind === "constructor") {
    if (isGenerator) { this.raise(key.start, "Constructor can't be a generator"); }
    if (isAsync) { this.raise(key.start, "Constructor can't be an async method"); }
  } else if (method.static && checkKeyName(method, "prototype")) {
    this.raise(key.start, "Classes may not have a static property named prototype");
  }

  // Parse value
  var value = method.value = this.parseMethod(isGenerator, isAsync, allowsDirectSuper);

  // Check value
  if (method.kind === "get" && value.params.length !== 0)
    { this.raiseRecoverable(value.start, "getter should have no params"); }
  if (method.kind === "set" && value.params.length !== 1)
    { this.raiseRecoverable(value.start, "setter should have exactly one param"); }
  if (method.kind === "set" && value.params[0].type === "RestElement")
    { this.raiseRecoverable(value.params[0].start, "Setter cannot use rest params"); }

  return this.finishNode(method, "MethodDefinition")
};

pp$1.parseClassField = function(field) {
  if (checkKeyName(field, "constructor")) {
    this.raise(field.key.start, "Classes can't have a field named 'constructor'");
  } else if (field.static && checkKeyName(field, "prototype")) {
    this.raise(field.key.start, "Classes can't have a static field named 'prototype'");
  }

  if (this.eat(types.eq)) {
    // To raise SyntaxError if 'arguments' exists in the initializer.
    var scope = this.currentThisScope();
    var inClassFieldInit = scope.inClassFieldInit;
    scope.inClassFieldInit = true;
    field.value = this.parseMaybeAssign();
    scope.inClassFieldInit = inClassFieldInit;
  } else {
    field.value = null;
  }
  this.semicolon();

  return this.finishNode(field, "PropertyDefinition")
};

pp$1.parseClassStaticBlock = function(node) {
  node.body = [];

  var oldLabels = this.labels;
  this.labels = [];
  this.enterScope(SCOPE_CLASS_STATIC_BLOCK | SCOPE_SUPER);
  while (this.type !== types.braceR) {
    var stmt = this.parseStatement(null);
    node.body.push(stmt);
  }
  this.next();
  this.exitScope();
  this.labels = oldLabels;

  return this.finishNode(node, "StaticBlock")
};

pp$1.parseClassId = function(node, isStatement) {
  if (this.type === types.name) {
    node.id = this.parseIdent();
    if (isStatement)
      { this.checkLValSimple(node.id, BIND_LEXICAL, false); }
  } else {
    if (isStatement === true)
      { this.unexpected(); }
    node.id = null;
  }
};

pp$1.parseClassSuper = function(node) {
  node.superClass = this.eat(types._extends) ? this.parseExprSubscripts(false) : null;
};

pp$1.enterClassBody = function() {
  var element = {declared: Object.create(null), used: []};
  this.privateNameStack.push(element);
  return element.declared
};

pp$1.exitClassBody = function() {
  var ref = this.privateNameStack.pop();
  var declared = ref.declared;
  var used = ref.used;
  var len = this.privateNameStack.length;
  var parent = len === 0 ? null : this.privateNameStack[len - 1];
  for (var i = 0; i < used.length; ++i) {
    var id = used[i];
    if (!has$1(declared, id.name)) {
      if (parent) {
        parent.used.push(id);
      } else {
        this.raiseRecoverable(id.start, ("Private field '#" + (id.name) + "' must be declared in an enclosing class"));
      }
    }
  }
};

function isPrivateNameConflicted(privateNameMap, element) {
  var name = element.key.name;
  var curr = privateNameMap[name];

  var next = "true";
  if (element.type === "MethodDefinition" && (element.kind === "get" || element.kind === "set")) {
    next = (element.static ? "s" : "i") + element.kind;
  }

  // `class { get #a(){}; static set #a(_){} }` is also conflict.
  if (
    curr === "iget" && next === "iset" ||
    curr === "iset" && next === "iget" ||
    curr === "sget" && next === "sset" ||
    curr === "sset" && next === "sget"
  ) {
    privateNameMap[name] = "true";
    return false
  } else if (!curr) {
    privateNameMap[name] = next;
    return false
  } else {
    return true
  }
}

function checkKeyName(node, name) {
  var computed = node.computed;
  var key = node.key;
  return !computed && (
    key.type === "Identifier" && key.name === name ||
    key.type === "Literal" && key.value === name
  )
}

// Parses module export declaration.

pp$1.parseExport = function(node, exports) {
  this.next();
  // export * from '...'
  if (this.eat(types.star)) {
    if (this.options.ecmaVersion >= 11) {
      if (this.eatContextual("as")) {
        node.exported = this.parseIdent(true);
        this.checkExport(exports, node.exported.name, this.lastTokStart);
      } else {
        node.exported = null;
      }
    }
    this.expectContextual("from");
    if (this.type !== types.string) { this.unexpected(); }
    node.source = this.parseExprAtom();
    this.semicolon();
    return this.finishNode(node, "ExportAllDeclaration")
  }
  if (this.eat(types._default)) { // export default ...
    this.checkExport(exports, "default", this.lastTokStart);
    var isAsync;
    if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
      var fNode = this.startNode();
      this.next();
      if (isAsync) { this.next(); }
      node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync);
    } else if (this.type === types._class) {
      var cNode = this.startNode();
      node.declaration = this.parseClass(cNode, "nullableID");
    } else {
      node.declaration = this.parseMaybeAssign();
      this.semicolon();
    }
    return this.finishNode(node, "ExportDefaultDeclaration")
  }
  // export var|const|let|function|class ...
  if (this.shouldParseExportStatement()) {
    node.declaration = this.parseStatement(null);
    if (node.declaration.type === "VariableDeclaration")
      { this.checkVariableExport(exports, node.declaration.declarations); }
    else
      { this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
    node.specifiers = [];
    node.source = null;
  } else { // export { x, y as z } [from '...']
    node.declaration = null;
    node.specifiers = this.parseExportSpecifiers(exports);
    if (this.eatContextual("from")) {
      if (this.type !== types.string) { this.unexpected(); }
      node.source = this.parseExprAtom();
    } else {
      for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
        // check for keywords used as local names
        var spec = list[i];

        this.checkUnreserved(spec.local);
        // check if export is defined
        this.checkLocalExport(spec.local);
      }

      node.source = null;
    }
    this.semicolon();
  }
  return this.finishNode(node, "ExportNamedDeclaration")
};

pp$1.checkExport = function(exports, name, pos) {
  if (!exports) { return }
  if (has$1(exports, name))
    { this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); }
  exports[name] = true;
};

pp$1.checkPatternExport = function(exports, pat) {
  var type = pat.type;
  if (type === "Identifier")
    { this.checkExport(exports, pat.name, pat.start); }
  else if (type === "ObjectPattern")
    { for (var i = 0, list = pat.properties; i < list.length; i += 1)
      {
        var prop = list[i];

        this.checkPatternExport(exports, prop);
      } }
  else if (type === "ArrayPattern")
    { for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) {
      var elt = list$1[i$1];

        if (elt) { this.checkPatternExport(exports, elt); }
    } }
  else if (type === "Property")
    { this.checkPatternExport(exports, pat.value); }
  else if (type === "AssignmentPattern")
    { this.checkPatternExport(exports, pat.left); }
  else if (type === "RestElement")
    { this.checkPatternExport(exports, pat.argument); }
  else if (type === "ParenthesizedExpression")
    { this.checkPatternExport(exports, pat.expression); }
};

pp$1.checkVariableExport = function(exports, decls) {
  if (!exports) { return }
  for (var i = 0, list = decls; i < list.length; i += 1)
    {
    var decl = list[i];

    this.checkPatternExport(exports, decl.id);
  }
};

pp$1.shouldParseExportStatement = function() {
  return this.type.keyword === "var" ||
    this.type.keyword === "const" ||
    this.type.keyword === "class" ||
    this.type.keyword === "function" ||
    this.isLet() ||
    this.isAsyncFunction()
};

// Parses a comma-separated list of module exports.

pp$1.parseExportSpecifiers = function(exports) {
  var nodes = [], first = true;
  // export { x, y as z } [from '...']
  this.expect(types.braceL);
  while (!this.eat(types.braceR)) {
    if (!first) {
      this.expect(types.comma);
      if (this.afterTrailingComma(types.braceR)) { break }
    } else { first = false; }

    var node = this.startNode();
    node.local = this.parseIdent(true);
    node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
    this.checkExport(exports, node.exported.name, node.exported.start);
    nodes.push(this.finishNode(node, "ExportSpecifier"));
  }
  return nodes
};

// Parses import declaration.

pp$1.parseImport = function(node) {
  this.next();
  // import '...'
  if (this.type === types.string) {
    node.specifiers = empty;
    node.source = this.parseExprAtom();
  } else {
    node.specifiers = this.parseImportSpecifiers();
    this.expectContextual("from");
    node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
  }
  this.semicolon();
  return this.finishNode(node, "ImportDeclaration")
};

// Parses a comma-separated list of module imports.

pp$1.parseImportSpecifiers = function() {
  var nodes = [], first = true;
  if (this.type === types.name) {
    // import defaultObj, { x, y as z } from '...'
    var node = this.startNode();
    node.local = this.parseIdent();
    this.checkLValSimple(node.local, BIND_LEXICAL);
    nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
    if (!this.eat(types.comma)) { return nodes }
  }
  if (this.type === types.star) {
    var node$1 = this.startNode();
    this.next();
    this.expectContextual("as");
    node$1.local = this.parseIdent();
    this.checkLValSimple(node$1.local, BIND_LEXICAL);
    nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"));
    return nodes
  }
  this.expect(types.braceL);
  while (!this.eat(types.braceR)) {
    if (!first) {
      this.expect(types.comma);
      if (this.afterTrailingComma(types.braceR)) { break }
    } else { first = false; }

    var node$2 = this.startNode();
    node$2.imported = this.parseIdent(true);
    if (this.eatContextual("as")) {
      node$2.local = this.parseIdent();
    } else {
      this.checkUnreserved(node$2.imported);
      node$2.local = node$2.imported;
    }
    this.checkLValSimple(node$2.local, BIND_LEXICAL);
    nodes.push(this.finishNode(node$2, "ImportSpecifier"));
  }
  return nodes
};

// Set `ExpressionStatement#directive` property for directive prologues.
pp$1.adaptDirectivePrologue = function(statements) {
  for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) {
    statements[i].directive = statements[i].expression.raw.slice(1, -1);
  }
};
pp$1.isDirectiveCandidate = function(statement) {
  return (
    statement.type === "ExpressionStatement" &&
    statement.expression.type === "Literal" &&
    typeof statement.expression.value === "string" &&
    // Reject parenthesized strings.
    (this.input[statement.start] === "\"" || this.input[statement.start] === "'")
  )
};

var pp$2 = Parser.prototype;

// Convert existing expression atom to assignable pattern
// if possible.

pp$2.toAssignable = function(node, isBinding, refDestructuringErrors) {
  if (this.options.ecmaVersion >= 6 && node) {
    switch (node.type) {
    case "Identifier":
      if (this.inAsync && node.name === "await")
        { this.raise(node.start, "Cannot use 'await' as identifier inside an async function"); }
      break

    case "ObjectPattern":
    case "ArrayPattern":
    case "AssignmentPattern":
    case "RestElement":
      break

    case "ObjectExpression":
      node.type = "ObjectPattern";
      if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
      for (var i = 0, list = node.properties; i < list.length; i += 1) {
        var prop = list[i];

      this.toAssignable(prop, isBinding);
        // Early error:
        //   AssignmentRestProperty[Yield, Await] :
        //     `...` DestructuringAssignmentTarget[Yield, Await]
        //
        //   It is a Syntax Error if |DestructuringAssignmentTarget| is an |ArrayLiteral| or an |ObjectLiteral|.
        if (
          prop.type === "RestElement" &&
          (prop.argument.type === "ArrayPattern" || prop.argument.type === "ObjectPattern")
        ) {
          this.raise(prop.argument.start, "Unexpected token");
        }
      }
      break

    case "Property":
      // AssignmentProperty has type === "Property"
      if (node.kind !== "init") { this.raise(node.key.start, "Object pattern can't contain getter or setter"); }
      this.toAssignable(node.value, isBinding);
      break

    case "ArrayExpression":
      node.type = "ArrayPattern";
      if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
      this.toAssignableList(node.elements, isBinding);
      break

    case "SpreadElement":
      node.type = "RestElement";
      this.toAssignable(node.argument, isBinding);
      if (node.argument.type === "AssignmentPattern")
        { this.raise(node.argument.start, "Rest elements cannot have a default value"); }
      break

    case "AssignmentExpression":
      if (node.operator !== "=") { this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); }
      node.type = "AssignmentPattern";
      delete node.operator;
      this.toAssignable(node.left, isBinding);
      break

    case "ParenthesizedExpression":
      this.toAssignable(node.expression, isBinding, refDestructuringErrors);
      break

    case "ChainExpression":
      this.raiseRecoverable(node.start, "Optional chaining cannot appear in left-hand side");
      break

    case "MemberExpression":
      if (!isBinding) { break }

    default:
      this.raise(node.start, "Assigning to rvalue");
    }
  } else if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
  return node
};

// Convert list of expression atoms to binding list.

pp$2.toAssignableList = function(exprList, isBinding) {
  var end = exprList.length;
  for (var i = 0; i < end; i++) {
    var elt = exprList[i];
    if (elt) { this.toAssignable(elt, isBinding); }
  }
  if (end) {
    var last = exprList[end - 1];
    if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
      { this.unexpected(last.argument.start); }
  }
  return exprList
};

// Parses spread element.

pp$2.parseSpread = function(refDestructuringErrors) {
  var node = this.startNode();
  this.next();
  node.argument = this.parseMaybeAssign(false, refDestructuringErrors);
  return this.finishNode(node, "SpreadElement")
};

pp$2.parseRestBinding = function() {
  var node = this.startNode();
  this.next();

  // RestElement inside of a function parameter must be an identifier
  if (this.options.ecmaVersion === 6 && this.type !== types.name)
    { this.unexpected(); }

  node.argument = this.parseBindingAtom();

  return this.finishNode(node, "RestElement")
};

// Parses lvalue (assignable) atom.

pp$2.parseBindingAtom = function() {
  if (this.options.ecmaVersion >= 6) {
    switch (this.type) {
    case types.bracketL:
      var node = this.startNode();
      this.next();
      node.elements = this.parseBindingList(types.bracketR, true, true);
      return this.finishNode(node, "ArrayPattern")

    case types.braceL:
      return this.parseObj(true)
    }
  }
  return this.parseIdent()
};

pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
  var elts = [], first = true;
  while (!this.eat(close)) {
    if (first) { first = false; }
    else { this.expect(types.comma); }
    if (allowEmpty && this.type === types.comma) {
      elts.push(null);
    } else if (allowTrailingComma && this.afterTrailingComma(close)) {
      break
    } else if (this.type === types.ellipsis) {
      var rest = this.parseRestBinding();
      this.parseBindingListItem(rest);
      elts.push(rest);
      if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
      this.expect(close);
      break
    } else {
      var elem = this.parseMaybeDefault(this.start, this.startLoc);
      this.parseBindingListItem(elem);
      elts.push(elem);
    }
  }
  return elts
};

pp$2.parseBindingListItem = function(param) {
  return param
};

// Parses assignment pattern around given atom if possible.

pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
  left = left || this.parseBindingAtom();
  if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left }
  var node = this.startNodeAt(startPos, startLoc);
  node.left = left;
  node.right = this.parseMaybeAssign();
  return this.finishNode(node, "AssignmentPattern")
};

// The following three functions all verify that a node is an lvalue —
// something that can be bound, or assigned to. In order to do so, they perform
// a variety of checks:
//
// - Check that none of the bound/assigned-to identifiers are reserved words.
// - Record name declarations for bindings in the appropriate scope.
// - Check duplicate argument names, if checkClashes is set.
//
// If a complex binding pattern is encountered (e.g., object and array
// destructuring), the entire pattern is recursively checked.
//
// There are three versions of checkLVal*() appropriate for different
// circumstances:
//
// - checkLValSimple() shall be used if the syntactic construct supports
//   nothing other than identifiers and member expressions. Parenthesized
//   expressions are also correctly handled. This is generally appropriate for
//   constructs for which the spec says
//
//   > It is a Syntax Error if AssignmentTargetType of [the production] is not
//   > simple.
//
//   It is also appropriate for checking if an identifier is valid and not
//   defined elsewhere, like import declarations or function/class identifiers.
//
//   Examples where this is used include:
//     a += …;
//     import a from '…';
//   where a is the node to be checked.
//
// - checkLValPattern() shall be used if the syntactic construct supports
//   anything checkLValSimple() supports, as well as object and array
//   destructuring patterns. This is generally appropriate for constructs for
//   which the spec says
//
//   > It is a Syntax Error if [the production] is neither an ObjectLiteral nor
//   > an ArrayLiteral and AssignmentTargetType of [the production] is not
//   > simple.
//
//   Examples where this is used include:
//     (a = …);
//     const a = …;
//     try { … } catch (a) { … }
//   where a is the node to be checked.
//
// - checkLValInnerPattern() shall be used if the syntactic construct supports
//   anything checkLValPattern() supports, as well as default assignment
//   patterns, rest elements, and other constructs that may appear within an
//   object or array destructuring pattern.
//
//   As a special case, function parameters also use checkLValInnerPattern(),
//   as they also support defaults and rest constructs.
//
// These functions deliberately support both assignment and binding constructs,
// as the logic for both is exceedingly similar. If the node is the target of
// an assignment, then bindingType should be set to BIND_NONE. Otherwise, it
// should be set to the appropriate BIND_* constant, like BIND_VAR or
// BIND_LEXICAL.
//
// If the function is called with a non-BIND_NONE bindingType, then
// additionally a checkClashes object may be specified to allow checking for
// duplicate argument names. checkClashes is ignored if the provided construct
// is an assignment (i.e., bindingType is BIND_NONE).

pp$2.checkLValSimple = function(expr, bindingType, checkClashes) {
  if ( bindingType === void 0 ) bindingType = BIND_NONE;

  var isBind = bindingType !== BIND_NONE;

  switch (expr.type) {
  case "Identifier":
    if (this.strict && this.reservedWordsStrictBind.test(expr.name))
      { this.raiseRecoverable(expr.start, (isBind ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); }
    if (isBind) {
      if (bindingType === BIND_LEXICAL && expr.name === "let")
        { this.raiseRecoverable(expr.start, "let is disallowed as a lexically bound name"); }
      if (checkClashes) {
        if (has$1(checkClashes, expr.name))
          { this.raiseRecoverable(expr.start, "Argument name clash"); }
        checkClashes[expr.name] = true;
      }
      if (bindingType !== BIND_OUTSIDE) { this.declareName(expr.name, bindingType, expr.start); }
    }
    break

  case "ChainExpression":
    this.raiseRecoverable(expr.start, "Optional chaining cannot appear in left-hand side");
    break

  case "MemberExpression":
    if (isBind) { this.raiseRecoverable(expr.start, "Binding member expression"); }
    break

  case "ParenthesizedExpression":
    if (isBind) { this.raiseRecoverable(expr.start, "Binding parenthesized expression"); }
    return this.checkLValSimple(expr.expression, bindingType, checkClashes)

  default:
    this.raise(expr.start, (isBind ? "Binding" : "Assigning to") + " rvalue");
  }
};

pp$2.checkLValPattern = function(expr, bindingType, checkClashes) {
  if ( bindingType === void 0 ) bindingType = BIND_NONE;

  switch (expr.type) {
  case "ObjectPattern":
    for (var i = 0, list = expr.properties; i < list.length; i += 1) {
      var prop = list[i];

    this.checkLValInnerPattern(prop, bindingType, checkClashes);
    }
    break

  case "ArrayPattern":
    for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) {
      var elem = list$1[i$1];

    if (elem) { this.checkLValInnerPattern(elem, bindingType, checkClashes); }
    }
    break

  default:
    this.checkLValSimple(expr, bindingType, checkClashes);
  }
};

pp$2.checkLValInnerPattern = function(expr, bindingType, checkClashes) {
  if ( bindingType === void 0 ) bindingType = BIND_NONE;

  switch (expr.type) {
  case "Property":
    // AssignmentProperty has type === "Property"
    this.checkLValInnerPattern(expr.value, bindingType, checkClashes);
    break

  case "AssignmentPattern":
    this.checkLValPattern(expr.left, bindingType, checkClashes);
    break

  case "RestElement":
    this.checkLValPattern(expr.argument, bindingType, checkClashes);
    break

  default:
    this.checkLValPattern(expr, bindingType, checkClashes);
  }
};

// The algorithm used to determine whether a regexp can appear at a

var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) {
  this.token = token;
  this.isExpr = !!isExpr;
  this.preserveSpace = !!preserveSpace;
  this.override = override;
  this.generator = !!generator;
};

var types$1 = {
  b_stat: new TokContext("{", false),
  b_expr: new TokContext("{", true),
  b_tmpl: new TokContext("${", false),
  p_stat: new TokContext("(", false),
  p_expr: new TokContext("(", true),
  q_tmpl: new TokContext("`", true, true, function (p) { return p.tryReadTemplateToken(); }),
  f_stat: new TokContext("function", false),
  f_expr: new TokContext("function", true),
  f_expr_gen: new TokContext("function", true, false, null, true),
  f_gen: new TokContext("function", false, false, null, true)
};

var pp$3 = Parser.prototype;

pp$3.initialContext = function() {
  return [types$1.b_stat]
};

pp$3.curContext = function() {
  return this.context[this.context.length - 1]
};

pp$3.braceIsBlock = function(prevType) {
  var parent = this.curContext();
  if (parent === types$1.f_expr || parent === types$1.f_stat)
    { return true }
  if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
    { return !parent.isExpr }

  // The check for `tt.name && exprAllowed` detects whether we are
  // after a `yield` or `of` construct. See the `updateContext` for
  // `tt.name`.
  if (prevType === types._return || prevType === types.name && this.exprAllowed)
    { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }
  if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType === types.arrow)
    { return true }
  if (prevType === types.braceL)
    { return parent === types$1.b_stat }
  if (prevType === types._var || prevType === types._const || prevType === types.name)
    { return false }
  return !this.exprAllowed
};

pp$3.inGeneratorContext = function() {
  for (var i = this.context.length - 1; i >= 1; i--) {
    var context = this.context[i];
    if (context.token === "function")
      { return context.generator }
  }
  return false
};

pp$3.updateContext = function(prevType) {
  var update, type = this.type;
  if (type.keyword && prevType === types.dot)
    { this.exprAllowed = false; }
  else if (update = type.updateContext)
    { update.call(this, prevType); }
  else
    { this.exprAllowed = type.beforeExpr; }
};

// Used to handle egde case when token context could not be inferred correctly in tokenize phase
pp$3.overrideContext = function(tokenCtx) {
  if (this.curContext() !== tokenCtx) {
    this.context[this.context.length - 1] = tokenCtx;
  }
};

// Token-specific context update code

types.parenR.updateContext = types.braceR.updateContext = function() {
  if (this.context.length === 1) {
    this.exprAllowed = true;
    return
  }
  var out = this.context.pop();
  if (out === types$1.b_stat && this.curContext().token === "function") {
    out = this.context.pop();
  }
  this.exprAllowed = !out.isExpr;
};

types.braceL.updateContext = function(prevType) {
  this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr);
  this.exprAllowed = true;
};

types.dollarBraceL.updateContext = function() {
  this.context.push(types$1.b_tmpl);
  this.exprAllowed = true;
};

types.parenL.updateContext = function(prevType) {
  var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
  this.context.push(statementParens ? types$1.p_stat : types$1.p_expr);
  this.exprAllowed = true;
};

types.incDec.updateContext = function() {
  // tokExprAllowed stays unchanged
};

types._function.updateContext = types._class.updateContext = function(prevType) {
  if (prevType.beforeExpr && prevType !== types._else &&
      !(prevType === types.semi && this.curContext() !== types$1.p_stat) &&
      !(prevType === types._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) &&
      !((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat))
    { this.context.push(types$1.f_expr); }
  else
    { this.context.push(types$1.f_stat); }
  this.exprAllowed = false;
};

types.backQuote.updateContext = function() {
  if (this.curContext() === types$1.q_tmpl)
    { this.context.pop(); }
  else
    { this.context.push(types$1.q_tmpl); }
  this.exprAllowed = false;
};

types.star.updateContext = function(prevType) {
  if (prevType === types._function) {
    var index = this.context.length - 1;
    if (this.context[index] === types$1.f_expr)
      { this.context[index] = types$1.f_expr_gen; }
    else
      { this.context[index] = types$1.f_gen; }
  }
  this.exprAllowed = true;
};

types.name.updateContext = function(prevType) {
  var allowed = false;
  if (this.options.ecmaVersion >= 6 && prevType !== types.dot) {
    if (this.value === "of" && !this.exprAllowed ||
        this.value === "yield" && this.inGeneratorContext())
      { allowed = true; }
  }
  this.exprAllowed = allowed;
};

// A recursive descent parser operates by defining functions for all

var pp$4 = Parser.prototype;

// Check if property name clashes with already added.
// Object/class getters and setters are not allowed to clash —
// either with each other or with an init property — and in
// strict mode, init properties are also not allowed to be repeated.

pp$4.checkPropClash = function(prop, propHash, refDestructuringErrors) {
  if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement")
    { return }
  if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
    { return }
  var key = prop.key;
  var name;
  switch (key.type) {
  case "Identifier": name = key.name; break
  case "Literal": name = String(key.value); break
  default: return
  }
  var kind = prop.kind;
  if (this.options.ecmaVersion >= 6) {
    if (name === "__proto__" && kind === "init") {
      if (propHash.proto) {
        if (refDestructuringErrors) {
          if (refDestructuringErrors.doubleProto < 0)
            { refDestructuringErrors.doubleProto = key.start; }
          // Backwards-compat kludge. Can be removed in version 6.0
        } else { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); }
      }
      propHash.proto = true;
    }
    return
  }
  name = "$" + name;
  var other = propHash[name];
  if (other) {
    var redefinition;
    if (kind === "init") {
      redefinition = this.strict && other.init || other.get || other.set;
    } else {
      redefinition = other.init || other[kind];
    }
    if (redefinition)
      { this.raiseRecoverable(key.start, "Redefinition of property"); }
  } else {
    other = propHash[name] = {
      init: false,
      get: false,
      set: false
    };
  }
  other[kind] = true;
};

// ### Expression parsing

// These nest, from the most general expression type at the top to
// 'atomic', nondivisible expression types at the bottom. Most of
// the functions will simply let the function(s) below them parse,
// and, *if* the syntactic construct they handle is present, wrap
// the AST node that the inner parser gave them in another node.

// Parse a full expression. The optional arguments are used to
// forbid the `in` operator (in for loops initalization expressions)
// and provide reference for storing '=' operator inside shorthand
// property assignment in contexts where both object expression
// and object pattern might appear (so it's possible to raise
// delayed syntax error at correct position).

pp$4.parseExpression = function(forInit, refDestructuringErrors) {
  var startPos = this.start, startLoc = this.startLoc;
  var expr = this.parseMaybeAssign(forInit, refDestructuringErrors);
  if (this.type === types.comma) {
    var node = this.startNodeAt(startPos, startLoc);
    node.expressions = [expr];
    while (this.eat(types.comma)) { node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)); }
    return this.finishNode(node, "SequenceExpression")
  }
  return expr
};

// Parse an assignment expression. This includes applications of
// operators like `+=`.

pp$4.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) {
  if (this.isContextual("yield")) {
    if (this.inGenerator) { return this.parseYield(forInit) }
    // The tokenizer will assume an expression is allowed after
    // `yield`, but this isn't that kind of yield
    else { this.exprAllowed = false; }
  }

  var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1;
  if (refDestructuringErrors) {
    oldParenAssign = refDestructuringErrors.parenthesizedAssign;
    oldTrailingComma = refDestructuringErrors.trailingComma;
    refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1;
  } else {
    refDestructuringErrors = new DestructuringErrors;
    ownDestructuringErrors = true;
  }

  var startPos = this.start, startLoc = this.startLoc;
  if (this.type === types.parenL || this.type === types.name) {
    this.potentialArrowAt = this.start;
    this.potentialArrowInForAwait = forInit === "await";
  }
  var left = this.parseMaybeConditional(forInit, refDestructuringErrors);
  if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); }
  if (this.type.isAssign) {
    var node = this.startNodeAt(startPos, startLoc);
    node.operator = this.value;
    if (this.type === types.eq)
      { left = this.toAssignable(left, false, refDestructuringErrors); }
    if (!ownDestructuringErrors) {
      refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = refDestructuringErrors.doubleProto = -1;
    }
    if (refDestructuringErrors.shorthandAssign >= left.start)
      { refDestructuringErrors.shorthandAssign = -1; } // reset because shorthand default was used correctly
    if (this.type === types.eq)
      { this.checkLValPattern(left); }
    else
      { this.checkLValSimple(left); }
    node.left = left;
    this.next();
    node.right = this.parseMaybeAssign(forInit);
    return this.finishNode(node, "AssignmentExpression")
  } else {
    if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }
  }
  if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; }
  if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; }
  return left
};

// Parse a ternary conditional (`?:`) operator.

pp$4.parseMaybeConditional = function(forInit, refDestructuringErrors) {
  var startPos = this.start, startLoc = this.startLoc;
  var expr = this.parseExprOps(forInit, refDestructuringErrors);
  if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
  if (this.eat(types.question)) {
    var node = this.startNodeAt(startPos, startLoc);
    node.test = expr;
    node.consequent = this.parseMaybeAssign();
    this.expect(types.colon);
    node.alternate = this.parseMaybeAssign(forInit);
    return this.finishNode(node, "ConditionalExpression")
  }
  return expr
};

// Start the precedence parser.

pp$4.parseExprOps = function(forInit, refDestructuringErrors) {
  var startPos = this.start, startLoc = this.startLoc;
  var expr = this.parseMaybeUnary(refDestructuringErrors, false, false, forInit);
  if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
  return expr.start === startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, forInit)
};

// Parse binary operators with the operator precedence parsing
// algorithm. `left` is the left-hand side of the operator.
// `minPrec` provides context that allows the function to stop and
// defer further parser to one of its callers when it encounters an
// operator that has a lower precedence than the set it is parsing.

pp$4.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) {
  var prec = this.type.binop;
  if (prec != null && (!forInit || this.type !== types._in)) {
    if (prec > minPrec) {
      var logical = this.type === types.logicalOR || this.type === types.logicalAND;
      var coalesce = this.type === types.coalesce;
      if (coalesce) {
        // Handle the precedence of `tt.coalesce` as equal to the range of logical expressions.
        // In other words, `node.right` shouldn't contain logical expressions in order to check the mixed error.
        prec = types.logicalAND.binop;
      }
      var op = this.value;
      this.next();
      var startPos = this.start, startLoc = this.startLoc;
      var right = this.parseExprOp(this.parseMaybeUnary(null, false, false, forInit), startPos, startLoc, prec, forInit);
      var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical || coalesce);
      if ((logical && this.type === types.coalesce) || (coalesce && (this.type === types.logicalOR || this.type === types.logicalAND))) {
        this.raiseRecoverable(this.start, "Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses");
      }
      return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, forInit)
    }
  }
  return left
};

pp$4.buildBinary = function(startPos, startLoc, left, right, op, logical) {
  var node = this.startNodeAt(startPos, startLoc);
  node.left = left;
  node.operator = op;
  node.right = right;
  return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression")
};

// Parse unary operators, both prefix and postfix.

pp$4.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) {
  var startPos = this.start, startLoc = this.startLoc, expr;
  if (this.isContextual("await") && this.canAwait) {
    expr = this.parseAwait(forInit);
    sawUnary = true;
  } else if (this.type.prefix) {
    var node = this.startNode(), update = this.type === types.incDec;
    node.operator = this.value;
    node.prefix = true;
    this.next();
    node.argument = this.parseMaybeUnary(null, true, update, forInit);
    this.checkExpressionErrors(refDestructuringErrors, true);
    if (update) { this.checkLValSimple(node.argument); }
    else if (this.strict && node.operator === "delete" &&
             node.argument.type === "Identifier")
      { this.raiseRecoverable(node.start, "Deleting local variable in strict mode"); }
    else if (node.operator === "delete" && isPrivateFieldAccess(node.argument))
      { this.raiseRecoverable(node.start, "Private fields can not be deleted"); }
    else { sawUnary = true; }
    expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
  } else {
    expr = this.parseExprSubscripts(refDestructuringErrors, forInit);
    if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
    while (this.type.postfix && !this.canInsertSemicolon()) {
      var node$1 = this.startNodeAt(startPos, startLoc);
      node$1.operator = this.value;
      node$1.prefix = false;
      node$1.argument = expr;
      this.checkLValSimple(expr);
      this.next();
      expr = this.finishNode(node$1, "UpdateExpression");
    }
  }

  if (!incDec && this.eat(types.starstar)) {
    if (sawUnary)
      { this.unexpected(this.lastTokStart); }
    else
      { return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false, false, forInit), "**", false) }
  } else {
    return expr
  }
};

function isPrivateFieldAccess(node) {
  return (
    node.type === "MemberExpression" && node.property.type === "PrivateIdentifier" ||
    node.type === "ChainExpression" && isPrivateFieldAccess(node.expression)
  )
}

// Parse call, dot, and `[]`-subscript expressions.

pp$4.parseExprSubscripts = function(refDestructuringErrors, forInit) {
  var startPos = this.start, startLoc = this.startLoc;
  var expr = this.parseExprAtom(refDestructuringErrors, forInit);
  if (expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")")
    { return expr }
  var result = this.parseSubscripts(expr, startPos, startLoc, false, forInit);
  if (refDestructuringErrors && result.type === "MemberExpression") {
    if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; }
    if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; }
    if (refDestructuringErrors.trailingComma >= result.start) { refDestructuringErrors.trailingComma = -1; }
  }
  return result
};

pp$4.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) {
  var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
      this.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 &&
      this.potentialArrowAt === base.start;
  var optionalChained = false;

  while (true) {
    var element = this.parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit);

    if (element.optional) { optionalChained = true; }
    if (element === base || element.type === "ArrowFunctionExpression") {
      if (optionalChained) {
        var chainNode = this.startNodeAt(startPos, startLoc);
        chainNode.expression = element;
        element = this.finishNode(chainNode, "ChainExpression");
      }
      return element
    }

    base = element;
  }
};

pp$4.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) {
  var optionalSupported = this.options.ecmaVersion >= 11;
  var optional = optionalSupported && this.eat(types.questionDot);
  if (noCalls && optional) { this.raise(this.lastTokStart, "Optional chaining cannot appear in the callee of new expressions"); }

  var computed = this.eat(types.bracketL);
  if (computed || (optional && this.type !== types.parenL && this.type !== types.backQuote) || this.eat(types.dot)) {
    var node = this.startNodeAt(startPos, startLoc);
    node.object = base;
    if (computed) {
      node.property = this.parseExpression();
      this.expect(types.bracketR);
    } else if (this.type === types.privateId && base.type !== "Super") {
      node.property = this.parsePrivateIdent();
    } else {
      node.property = this.parseIdent(this.options.allowReserved !== "never");
    }
    node.computed = !!computed;
    if (optionalSupported) {
      node.optional = optional;
    }
    base = this.finishNode(node, "MemberExpression");
  } else if (!noCalls && this.eat(types.parenL)) {
    var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
    this.yieldPos = 0;
    this.awaitPos = 0;
    this.awaitIdentPos = 0;
    var exprList = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors);
    if (maybeAsyncArrow && !optional && !this.canInsertSemicolon() && this.eat(types.arrow)) {
      this.checkPatternErrors(refDestructuringErrors, false);
      this.checkYieldAwaitInDefaultParams();
      if (this.awaitIdentPos > 0)
        { this.raise(this.awaitIdentPos, "Cannot use 'await' as identifier inside an async function"); }
      this.yieldPos = oldYieldPos;
      this.awaitPos = oldAwaitPos;
      this.awaitIdentPos = oldAwaitIdentPos;
      return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, true, forInit)
    }
    this.checkExpressionErrors(refDestructuringErrors, true);
    this.yieldPos = oldYieldPos || this.yieldPos;
    this.awaitPos = oldAwaitPos || this.awaitPos;
    this.awaitIdentPos = oldAwaitIdentPos || this.awaitIdentPos;
    var node$1 = this.startNodeAt(startPos, startLoc);
    node$1.callee = base;
    node$1.arguments = exprList;
    if (optionalSupported) {
      node$1.optional = optional;
    }
    base = this.finishNode(node$1, "CallExpression");
  } else if (this.type === types.backQuote) {
    if (optional || optionalChained) {
      this.raise(this.start, "Optional chaining cannot appear in the tag of tagged template expressions");
    }
    var node$2 = this.startNodeAt(startPos, startLoc);
    node$2.tag = base;
    node$2.quasi = this.parseTemplate({isTagged: true});
    base = this.finishNode(node$2, "TaggedTemplateExpression");
  }
  return base
};

// Parse an atomic expression — either a single token that is an
// expression, an expression started by a keyword like `function` or
// `new`, or an expression wrapped in punctuation like `()`, `[]`,
// or `{}`.

pp$4.parseExprAtom = function(refDestructuringErrors, forInit) {
  // If a division operator appears in an expression position, the
  // tokenizer got confused, and we force it to read a regexp instead.
  if (this.type === types.slash) { this.readRegexp(); }

  var node, canBeArrow = this.potentialArrowAt === this.start;
  switch (this.type) {
  case types._super:
    if (!this.allowSuper)
      { this.raise(this.start, "'super' keyword outside a method"); }
    node = this.startNode();
    this.next();
    if (this.type === types.parenL && !this.allowDirectSuper)
      { this.raise(node.start, "super() call outside constructor of a subclass"); }
    // The `super` keyword can appear at below:
    // SuperProperty:
    //     super [ Expression ]
    //     super . IdentifierName
    // SuperCall:
    //     super ( Arguments )
    if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
      { this.unexpected(); }
    return this.finishNode(node, "Super")

  case types._this:
    node = this.startNode();
    this.next();
    return this.finishNode(node, "ThisExpression")

  case types.name:
    var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc;
    var id = this.parseIdent(false);
    if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function)) {
      this.overrideContext(types$1.f_expr);
      return this.parseFunction(this.startNodeAt(startPos, startLoc), 0, false, true, forInit)
    }
    if (canBeArrow && !this.canInsertSemicolon()) {
      if (this.eat(types.arrow))
        { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false, forInit) }
      if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name && !containsEsc &&
          (!this.potentialArrowInForAwait || this.value !== "of" || this.containsEsc)) {
        id = this.parseIdent(false);
        if (this.canInsertSemicolon() || !this.eat(types.arrow))
          { this.unexpected(); }
        return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true, forInit)
      }
    }
    return id

  case types.regexp:
    var value = this.value;
    node = this.parseLiteral(value.value);
    node.regex = {pattern: value.pattern, flags: value.flags};
    return node

  case types.num: case types.string:
    return this.parseLiteral(this.value)

  case types._null: case types._true: case types._false:
    node = this.startNode();
    node.value = this.type === types._null ? null : this.type === types._true;
    node.raw = this.type.keyword;
    this.next();
    return this.finishNode(node, "Literal")

  case types.parenL:
    var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow, forInit);
    if (refDestructuringErrors) {
      if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
        { refDestructuringErrors.parenthesizedAssign = start; }
      if (refDestructuringErrors.parenthesizedBind < 0)
        { refDestructuringErrors.parenthesizedBind = start; }
    }
    return expr

  case types.bracketL:
    node = this.startNode();
    this.next();
    node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors);
    return this.finishNode(node, "ArrayExpression")

  case types.braceL:
    this.overrideContext(types$1.b_expr);
    return this.parseObj(false, refDestructuringErrors)

  case types._function:
    node = this.startNode();
    this.next();
    return this.parseFunction(node, 0)

  case types._class:
    return this.parseClass(this.startNode(), false)

  case types._new:
    return this.parseNew()

  case types.backQuote:
    return this.parseTemplate()

  case types._import:
    if (this.options.ecmaVersion >= 11) {
      return this.parseExprImport()
    } else {
      return this.unexpected()
    }

  default:
    this.unexpected();
  }
};

pp$4.parseExprImport = function() {
  var node = this.startNode();

  // Consume `import` as an identifier for `import.meta`.
  // Because `this.parseIdent(true)` doesn't check escape sequences, it needs the check of `this.containsEsc`.
  if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword import"); }
  var meta = this.parseIdent(true);

  switch (this.type) {
  case types.parenL:
    return this.parseDynamicImport(node)
  case types.dot:
    node.meta = meta;
    return this.parseImportMeta(node)
  default:
    this.unexpected();
  }
};

pp$4.parseDynamicImport = function(node) {
  this.next(); // skip `(`

  // Parse node.source.
  node.source = this.parseMaybeAssign();

  // Verify ending.
  if (!this.eat(types.parenR)) {
    var errorPos = this.start;
    if (this.eat(types.comma) && this.eat(types.parenR)) {
      this.raiseRecoverable(errorPos, "Trailing comma is not allowed in import()");
    } else {
      this.unexpected(errorPos);
    }
  }

  return this.finishNode(node, "ImportExpression")
};

pp$4.parseImportMeta = function(node) {
  this.next(); // skip `.`

  var containsEsc = this.containsEsc;
  node.property = this.parseIdent(true);

  if (node.property.name !== "meta")
    { this.raiseRecoverable(node.property.start, "The only valid meta property for import is 'import.meta'"); }
  if (containsEsc)
    { this.raiseRecoverable(node.start, "'import.meta' must not contain escaped characters"); }
  if (this.options.sourceType !== "module" && !this.options.allowImportExportEverywhere)
    { this.raiseRecoverable(node.start, "Cannot use 'import.meta' outside a module"); }

  return this.finishNode(node, "MetaProperty")
};

pp$4.parseLiteral = function(value) {
  var node = this.startNode();
  node.value = value;
  node.raw = this.input.slice(this.start, this.end);
  if (node.raw.charCodeAt(node.raw.length - 1) === 110) { node.bigint = node.raw.slice(0, -1).replace(/_/g, ""); }
  this.next();
  return this.finishNode(node, "Literal")
};

pp$4.parseParenExpression = function() {
  this.expect(types.parenL);
  var val = this.parseExpression();
  this.expect(types.parenR);
  return val
};

pp$4.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {
  var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;
  if (this.options.ecmaVersion >= 6) {
    this.next();

    var innerStartPos = this.start, innerStartLoc = this.startLoc;
    var exprList = [], first = true, lastIsComma = false;
    var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart;
    this.yieldPos = 0;
    this.awaitPos = 0;
    // Do not save awaitIdentPos to allow checking awaits nested in parameters
    while (this.type !== types.parenR) {
      first ? first = false : this.expect(types.comma);
      if (allowTrailingComma && this.afterTrailingComma(types.parenR, true)) {
        lastIsComma = true;
        break
      } else if (this.type === types.ellipsis) {
        spreadStart = this.start;
        exprList.push(this.parseParenItem(this.parseRestBinding()));
        if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
        break
      } else {
        exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem));
      }
    }
    var innerEndPos = this.lastTokEnd, innerEndLoc = this.lastTokEndLoc;
    this.expect(types.parenR);

    if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
      this.checkPatternErrors(refDestructuringErrors, false);
      this.checkYieldAwaitInDefaultParams();
      this.yieldPos = oldYieldPos;
      this.awaitPos = oldAwaitPos;
      return this.parseParenArrowList(startPos, startLoc, exprList, forInit)
    }

    if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); }
    if (spreadStart) { this.unexpected(spreadStart); }
    this.checkExpressionErrors(refDestructuringErrors, true);
    this.yieldPos = oldYieldPos || this.yieldPos;
    this.awaitPos = oldAwaitPos || this.awaitPos;

    if (exprList.length > 1) {
      val = this.startNodeAt(innerStartPos, innerStartLoc);
      val.expressions = exprList;
      this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
    } else {
      val = exprList[0];
    }
  } else {
    val = this.parseParenExpression();
  }

  if (this.options.preserveParens) {
    var par = this.startNodeAt(startPos, startLoc);
    par.expression = val;
    return this.finishNode(par, "ParenthesizedExpression")
  } else {
    return val
  }
};

pp$4.parseParenItem = function(item) {
  return item
};

pp$4.parseParenArrowList = function(startPos, startLoc, exprList, forInit) {
  return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, forInit)
};

// New's precedence is slightly tricky. It must allow its argument to
// be a `[]` or dot subscript expression, but not a call — at least,
// not without wrapping it in parentheses. Thus, it uses the noCalls
// argument to parseSubscripts to prevent it from consuming the
// argument list.

var empty$1 = [];

pp$4.parseNew = function() {
  if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword new"); }
  var node = this.startNode();
  var meta = this.parseIdent(true);
  if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
    node.meta = meta;
    var containsEsc = this.containsEsc;
    node.property = this.parseIdent(true);
    if (node.property.name !== "target")
      { this.raiseRecoverable(node.property.start, "The only valid meta property for new is 'new.target'"); }
    if (containsEsc)
      { this.raiseRecoverable(node.start, "'new.target' must not contain escaped characters"); }
    if (!this.allowNewDotTarget)
      { this.raiseRecoverable(node.start, "'new.target' can only be used in functions and class static block"); }
    return this.finishNode(node, "MetaProperty")
  }
  var startPos = this.start, startLoc = this.startLoc, isImport = this.type === types._import;
  node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true, false);
  if (isImport && node.callee.type === "ImportExpression") {
    this.raise(startPos, "Cannot use new with import()");
  }
  if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false); }
  else { node.arguments = empty$1; }
  return this.finishNode(node, "NewExpression")
};

// Parse template expression.

pp$4.parseTemplateElement = function(ref) {
  var isTagged = ref.isTagged;

  var elem = this.startNode();
  if (this.type === types.invalidTemplate) {
    if (!isTagged) {
      this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal");
    }
    elem.value = {
      raw: this.value,
      cooked: null
    };
  } else {
    elem.value = {
      raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
      cooked: this.value
    };
  }
  this.next();
  elem.tail = this.type === types.backQuote;
  return this.finishNode(elem, "TemplateElement")
};

pp$4.parseTemplate = function(ref) {
  if ( ref === void 0 ) ref = {};
  var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;

  var node = this.startNode();
  this.next();
  node.expressions = [];
  var curElt = this.parseTemplateElement({isTagged: isTagged});
  node.quasis = [curElt];
  while (!curElt.tail) {
    if (this.type === types.eof) { this.raise(this.pos, "Unterminated template literal"); }
    this.expect(types.dollarBraceL);
    node.expressions.push(this.parseExpression());
    this.expect(types.braceR);
    node.quasis.push(curElt = this.parseTemplateElement({isTagged: isTagged}));
  }
  this.next();
  return this.finishNode(node, "TemplateLiteral")
};

pp$4.isAsyncProp = function(prop) {
  return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" &&
    (this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types.star)) &&
    !lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
};

// Parse an object literal or binding pattern.

pp$4.parseObj = function(isPattern, refDestructuringErrors) {
  var node = this.startNode(), first = true, propHash = {};
  node.properties = [];
  this.next();
  while (!this.eat(types.braceR)) {
    if (!first) {
      this.expect(types.comma);
      if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types.braceR)) { break }
    } else { first = false; }

    var prop = this.parseProperty(isPattern, refDestructuringErrors);
    if (!isPattern) { this.checkPropClash(prop, propHash, refDestructuringErrors); }
    node.properties.push(prop);
  }
  return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
};

pp$4.parseProperty = function(isPattern, refDestructuringErrors) {
  var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;
  if (this.options.ecmaVersion >= 9 && this.eat(types.ellipsis)) {
    if (isPattern) {
      prop.argument = this.parseIdent(false);
      if (this.type === types.comma) {
        this.raise(this.start, "Comma is not permitted after the rest element");
      }
      return this.finishNode(prop, "RestElement")
    }
    // To disallow parenthesized identifier via `this.toAssignable()`.
    if (this.type === types.parenL && refDestructuringErrors) {
      if (refDestructuringErrors.parenthesizedAssign < 0) {
        refDestructuringErrors.parenthesizedAssign = this.start;
      }
      if (refDestructuringErrors.parenthesizedBind < 0) {
        refDestructuringErrors.parenthesizedBind = this.start;
      }
    }
    // Parse argument.
    prop.argument = this.parseMaybeAssign(false, refDestructuringErrors);
    // To disallow trailing comma via `this.toAssignable()`.
    if (this.type === types.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
      refDestructuringErrors.trailingComma = this.start;
    }
    // Finish
    return this.finishNode(prop, "SpreadElement")
  }
  if (this.options.ecmaVersion >= 6) {
    prop.method = false;
    prop.shorthand = false;
    if (isPattern || refDestructuringErrors) {
      startPos = this.start;
      startLoc = this.startLoc;
    }
    if (!isPattern)
      { isGenerator = this.eat(types.star); }
  }
  var containsEsc = this.containsEsc;
  this.parsePropertyName(prop);
  if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {
    isAsync = true;
    isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
    this.parsePropertyName(prop, refDestructuringErrors);
  } else {
    isAsync = false;
  }
  this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc);
  return this.finishNode(prop, "Property")
};

pp$4.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
  if ((isGenerator || isAsync) && this.type === types.colon)
    { this.unexpected(); }

  if (this.eat(types.colon)) {
    prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);
    prop.kind = "init";
  } else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) {
    if (isPattern) { this.unexpected(); }
    prop.kind = "init";
    prop.method = true;
    prop.value = this.parseMethod(isGenerator, isAsync);
  } else if (!isPattern && !containsEsc &&
             this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
             (prop.key.name === "get" || prop.key.name === "set") &&
             (this.type !== types.comma && this.type !== types.braceR && this.type !== types.eq)) {
    if (isGenerator || isAsync) { this.unexpected(); }
    prop.kind = prop.key.name;
    this.parsePropertyName(prop);
    prop.value = this.parseMethod(false);
    var paramCount = prop.kind === "get" ? 0 : 1;
    if (prop.value.params.length !== paramCount) {
      var start = prop.value.start;
      if (prop.kind === "get")
        { this.raiseRecoverable(start, "getter should have no params"); }
      else
        { this.raiseRecoverable(start, "setter should have exactly one param"); }
    } else {
      if (prop.kind === "set" && prop.value.params[0].type === "RestElement")
        { this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params"); }
    }
  } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
    if (isGenerator || isAsync) { this.unexpected(); }
    this.checkUnreserved(prop.key);
    if (prop.key.name === "await" && !this.awaitIdentPos)
      { this.awaitIdentPos = startPos; }
    prop.kind = "init";
    if (isPattern) {
      prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));
    } else if (this.type === types.eq && refDestructuringErrors) {
      if (refDestructuringErrors.shorthandAssign < 0)
        { refDestructuringErrors.shorthandAssign = this.start; }
      prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));
    } else {
      prop.value = this.copyNode(prop.key);
    }
    prop.shorthand = true;
  } else { this.unexpected(); }
};

pp$4.parsePropertyName = function(prop) {
  if (this.options.ecmaVersion >= 6) {
    if (this.eat(types.bracketL)) {
      prop.computed = true;
      prop.key = this.parseMaybeAssign();
      this.expect(types.bracketR);
      return prop.key
    } else {
      prop.computed = false;
    }
  }
  return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never")
};

// Initialize empty function node.

pp$4.initFunction = function(node) {
  node.id = null;
  if (this.options.ecmaVersion >= 6) { node.generator = node.expression = false; }
  if (this.options.ecmaVersion >= 8) { node.async = false; }
};

// Parse object or class method.

pp$4.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {
  var node = this.startNode(), oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;

  this.initFunction(node);
  if (this.options.ecmaVersion >= 6)
    { node.generator = isGenerator; }
  if (this.options.ecmaVersion >= 8)
    { node.async = !!isAsync; }

  this.yieldPos = 0;
  this.awaitPos = 0;
  this.awaitIdentPos = 0;
  this.enterScope(functionFlags(isAsync, node.generator) | SCOPE_SUPER | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0));

  this.expect(types.parenL);
  node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
  this.checkYieldAwaitInDefaultParams();
  this.parseFunctionBody(node, false, true, false);

  this.yieldPos = oldYieldPos;
  this.awaitPos = oldAwaitPos;
  this.awaitIdentPos = oldAwaitIdentPos;
  return this.finishNode(node, "FunctionExpression")
};

// Parse arrow function expression with given parameters.

pp$4.parseArrowExpression = function(node, params, isAsync, forInit) {
  var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;

  this.enterScope(functionFlags(isAsync, false) | SCOPE_ARROW);
  this.initFunction(node);
  if (this.options.ecmaVersion >= 8) { node.async = !!isAsync; }

  this.yieldPos = 0;
  this.awaitPos = 0;
  this.awaitIdentPos = 0;

  node.params = this.toAssignableList(params, true);
  this.parseFunctionBody(node, true, false, forInit);

  this.yieldPos = oldYieldPos;
  this.awaitPos = oldAwaitPos;
  this.awaitIdentPos = oldAwaitIdentPos;
  return this.finishNode(node, "ArrowFunctionExpression")
};

// Parse function body and check parameters.

pp$4.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) {
  var isExpression = isArrowFunction && this.type !== types.braceL;
  var oldStrict = this.strict, useStrict = false;

  if (isExpression) {
    node.body = this.parseMaybeAssign(forInit);
    node.expression = true;
    this.checkParams(node, false);
  } else {
    var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params);
    if (!oldStrict || nonSimple) {
      useStrict = this.strictDirective(this.end);
      // If this is a strict mode function, verify that argument names
      // are not repeated, and it does not try to bind the words `eval`
      // or `arguments`.
      if (useStrict && nonSimple)
        { this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list"); }
    }
    // Start a new scope with regard to labels and the `inFunction`
    // flag (restore them to their old value afterwards).
    var oldLabels = this.labels;
    this.labels = [];
    if (useStrict) { this.strict = true; }

    // Add the params to varDeclaredNames to ensure that an error is thrown
    // if a let/const declaration in the function clashes with one of the params.
    this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && !isMethod && this.isSimpleParamList(node.params));
    // Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval'
    if (this.strict && node.id) { this.checkLValSimple(node.id, BIND_OUTSIDE); }
    node.body = this.parseBlock(false, undefined, useStrict && !oldStrict);
    node.expression = false;
    this.adaptDirectivePrologue(node.body.body);
    this.labels = oldLabels;
  }
  this.exitScope();
};

pp$4.isSimpleParamList = function(params) {
  for (var i = 0, list = params; i < list.length; i += 1)
    {
    var param = list[i];

    if (param.type !== "Identifier") { return false
  } }
  return true
};

// Checks function params for various disallowed patterns such as using "eval"
// or "arguments" and duplicate parameters.

pp$4.checkParams = function(node, allowDuplicates) {
  var nameHash = Object.create(null);
  for (var i = 0, list = node.params; i < list.length; i += 1)
    {
    var param = list[i];

    this.checkLValInnerPattern(param, BIND_VAR, allowDuplicates ? null : nameHash);
  }
};

// Parses a comma-separated list of expressions, and returns them as
// an array. `close` is the token type that ends the list, and
// `allowEmpty` can be turned on to allow subsequent commas with
// nothing in between them to be parsed as `null` (which is needed
// for array literals).

pp$4.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
  var elts = [], first = true;
  while (!this.eat(close)) {
    if (!first) {
      this.expect(types.comma);
      if (allowTrailingComma && this.afterTrailingComma(close)) { break }
    } else { first = false; }

    var elt = (void 0);
    if (allowEmpty && this.type === types.comma)
      { elt = null; }
    else if (this.type === types.ellipsis) {
      elt = this.parseSpread(refDestructuringErrors);
      if (refDestructuringErrors && this.type === types.comma && refDestructuringErrors.trailingComma < 0)
        { refDestructuringErrors.trailingComma = this.start; }
    } else {
      elt = this.parseMaybeAssign(false, refDestructuringErrors);
    }
    elts.push(elt);
  }
  return elts
};

pp$4.checkUnreserved = function(ref) {
  var start = ref.start;
  var end = ref.end;
  var name = ref.name;

  if (this.inGenerator && name === "yield")
    { this.raiseRecoverable(start, "Cannot use 'yield' as identifier inside a generator"); }
  if (this.inAsync && name === "await")
    { this.raiseRecoverable(start, "Cannot use 'await' as identifier inside an async function"); }
  if (this.currentThisScope().inClassFieldInit && name === "arguments")
    { this.raiseRecoverable(start, "Cannot use 'arguments' in class field initializer"); }
  if (this.inClassStaticBlock && (name === "arguments" || name === "await"))
    { this.raise(start, ("Cannot use " + name + " in class static initialization block")); }
  if (this.keywords.test(name))
    { this.raise(start, ("Unexpected keyword '" + name + "'")); }
  if (this.options.ecmaVersion < 6 &&
    this.input.slice(start, end).indexOf("\\") !== -1) { return }
  var re = this.strict ? this.reservedWordsStrict : this.reservedWords;
  if (re.test(name)) {
    if (!this.inAsync && name === "await")
      { this.raiseRecoverable(start, "Cannot use keyword 'await' outside an async function"); }
    this.raiseRecoverable(start, ("The keyword '" + name + "' is reserved"));
  }
};

// Parse the next token as an identifier. If `liberal` is true (used
// when parsing properties), it will also convert keywords into
// identifiers.

pp$4.parseIdent = function(liberal, isBinding) {
  var node = this.startNode();
  if (this.type === types.name) {
    node.name = this.value;
  } else if (this.type.keyword) {
    node.name = this.type.keyword;

    // To fix https://github.com/acornjs/acorn/issues/575
    // `class` and `function` keywords push new context into this.context.
    // But there is no chance to pop the context if the keyword is consumed as an identifier such as a property name.
    // If the previous token is a dot, this does not apply because the context-managing code already ignored the keyword
    if ((node.name === "class" || node.name === "function") &&
        (this.lastTokEnd !== this.lastTokStart + 1 || this.input.charCodeAt(this.lastTokStart) !== 46)) {
      this.context.pop();
    }
  } else {
    this.unexpected();
  }
  this.next(!!liberal);
  this.finishNode(node, "Identifier");
  if (!liberal) {
    this.checkUnreserved(node);
    if (node.name === "await" && !this.awaitIdentPos)
      { this.awaitIdentPos = node.start; }
  }
  return node
};

pp$4.parsePrivateIdent = function() {
  var node = this.startNode();
  if (this.type === types.privateId) {
    node.name = this.value;
  } else {
    this.unexpected();
  }
  this.next();
  this.finishNode(node, "PrivateIdentifier");

  // For validating existence
  if (this.privateNameStack.length === 0) {
    this.raise(node.start, ("Private field '#" + (node.name) + "' must be declared in an enclosing class"));
  } else {
    this.privateNameStack[this.privateNameStack.length - 1].used.push(node);
  }

  return node
};

// Parses yield expression inside generator.

pp$4.parseYield = function(forInit) {
  if (!this.yieldPos) { this.yieldPos = this.start; }

  var node = this.startNode();
  this.next();
  if (this.type === types.semi || this.canInsertSemicolon() || (this.type !== types.star && !this.type.startsExpr)) {
    node.delegate = false;
    node.argument = null;
  } else {
    node.delegate = this.eat(types.star);
    node.argument = this.parseMaybeAssign(forInit);
  }
  return this.finishNode(node, "YieldExpression")
};

pp$4.parseAwait = function(forInit) {
  if (!this.awaitPos) { this.awaitPos = this.start; }

  var node = this.startNode();
  this.next();
  node.argument = this.parseMaybeUnary(null, true, false, forInit);
  return this.finishNode(node, "AwaitExpression")
};

var pp$5 = Parser.prototype;

// This function is used to raise exceptions on parse errors. It
// takes an offset integer (into the current `input`) to indicate
// the location of the error, attaches the position to the end
// of the error message, and then raises a `SyntaxError` with that
// message.

pp$5.raise = function(pos, message) {
  var loc = getLineInfo(this.input, pos);
  message += " (" + loc.line + ":" + loc.column + ")";
  var err = new SyntaxError(message);
  err.pos = pos; err.loc = loc; err.raisedAt = this.pos;
  throw err
};

pp$5.raiseRecoverable = pp$5.raise;

pp$5.curPosition = function() {
  if (this.options.locations) {
    return new Position(this.curLine, this.pos - this.lineStart)
  }
};

var pp$6 = Parser.prototype;

var Scope = function Scope(flags) {
  this.flags = flags;
  // A list of var-declared names in the current lexical scope
  this.var = [];
  // A list of lexically-declared names in the current lexical scope
  this.lexical = [];
  // A list of lexically-declared FunctionDeclaration names in the current lexical scope
  this.functions = [];
  // A switch to disallow the identifier reference 'arguments'
  this.inClassFieldInit = false;
};

// The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names.

pp$6.enterScope = function(flags) {
  this.scopeStack.push(new Scope(flags));
};

pp$6.exitScope = function() {
  this.scopeStack.pop();
};

// The spec says:
// > At the top level of a function, or script, function declarations are
// > treated like var declarations rather than like lexical declarations.
pp$6.treatFunctionsAsVarInScope = function(scope) {
  return (scope.flags & SCOPE_FUNCTION) || !this.inModule && (scope.flags & SCOPE_TOP)
};

pp$6.declareName = function(name, bindingType, pos) {
  var redeclared = false;
  if (bindingType === BIND_LEXICAL) {
    var scope = this.currentScope();
    redeclared = scope.lexical.indexOf(name) > -1 || scope.functions.indexOf(name) > -1 || scope.var.indexOf(name) > -1;
    scope.lexical.push(name);
    if (this.inModule && (scope.flags & SCOPE_TOP))
      { delete this.undefinedExports[name]; }
  } else if (bindingType === BIND_SIMPLE_CATCH) {
    var scope$1 = this.currentScope();
    scope$1.lexical.push(name);
  } else if (bindingType === BIND_FUNCTION) {
    var scope$2 = this.currentScope();
    if (this.treatFunctionsAsVar)
      { redeclared = scope$2.lexical.indexOf(name) > -1; }
    else
      { redeclared = scope$2.lexical.indexOf(name) > -1 || scope$2.var.indexOf(name) > -1; }
    scope$2.functions.push(name);
  } else {
    for (var i = this.scopeStack.length - 1; i >= 0; --i) {
      var scope$3 = this.scopeStack[i];
      if (scope$3.lexical.indexOf(name) > -1 && !((scope$3.flags & SCOPE_SIMPLE_CATCH) && scope$3.lexical[0] === name) ||
          !this.treatFunctionsAsVarInScope(scope$3) && scope$3.functions.indexOf(name) > -1) {
        redeclared = true;
        break
      }
      scope$3.var.push(name);
      if (this.inModule && (scope$3.flags & SCOPE_TOP))
        { delete this.undefinedExports[name]; }
      if (scope$3.flags & SCOPE_VAR) { break }
    }
  }
  if (redeclared) { this.raiseRecoverable(pos, ("Identifier '" + name + "' has already been declared")); }
};

pp$6.checkLocalExport = function(id) {
  // scope.functions must be empty as Module code is always strict.
  if (this.scopeStack[0].lexical.indexOf(id.name) === -1 &&
      this.scopeStack[0].var.indexOf(id.name) === -1) {
    this.undefinedExports[id.name] = id;
  }
};

pp$6.currentScope = function() {
  return this.scopeStack[this.scopeStack.length - 1]
};

pp$6.currentVarScope = function() {
  for (var i = this.scopeStack.length - 1;; i--) {
    var scope = this.scopeStack[i];
    if (scope.flags & SCOPE_VAR) { return scope }
  }
};

// Could be useful for `this`, `new.target`, `super()`, `super.property`, and `super[property]`.
pp$6.currentThisScope = function() {
  for (var i = this.scopeStack.length - 1;; i--) {
    var scope = this.scopeStack[i];
    if (scope.flags & SCOPE_VAR && !(scope.flags & SCOPE_ARROW)) { return scope }
  }
};

var Node = function Node(parser, pos, loc) {
  this.type = "";
  this.start = pos;
  this.end = 0;
  if (parser.options.locations)
    { this.loc = new SourceLocation(parser, loc); }
  if (parser.options.directSourceFile)
    { this.sourceFile = parser.options.directSourceFile; }
  if (parser.options.ranges)
    { this.range = [pos, 0]; }
};

// Start an AST node, attaching a start offset.

var pp$7 = Parser.prototype;

pp$7.startNode = function() {
  return new Node(this, this.start, this.startLoc)
};

pp$7.startNodeAt = function(pos, loc) {
  return new Node(this, pos, loc)
};

// Finish an AST node, adding `type` and `end` properties.

function finishNodeAt(node, type, pos, loc) {
  node.type = type;
  node.end = pos;
  if (this.options.locations)
    { node.loc.end = loc; }
  if (this.options.ranges)
    { node.range[1] = pos; }
  return node
}

pp$7.finishNode = function(node, type) {
  return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
};

// Finish node at given position

pp$7.finishNodeAt = function(node, type, pos, loc) {
  return finishNodeAt.call(this, node, type, pos, loc)
};

pp$7.copyNode = function(node) {
  var newNode = new Node(this, node.start, this.startLoc);
  for (var prop in node) { newNode[prop] = node[prop]; }
  return newNode
};

// This file contains Unicode properties extracted from the ECMAScript
// specification. The lists are extracted like so:
// $$('#table-binary-unicode-properties > figure > table > tbody > tr > td:nth-child(1) code').map(el => el.innerText)

// #table-binary-unicode-properties
var ecma9BinaryProperties = "ASCII ASCII_Hex_Digit AHex Alphabetic Alpha Any Assigned Bidi_Control Bidi_C Bidi_Mirrored Bidi_M Case_Ignorable CI Cased Changes_When_Casefolded CWCF Changes_When_Casemapped CWCM Changes_When_Lowercased CWL Changes_When_NFKC_Casefolded CWKCF Changes_When_Titlecased CWT Changes_When_Uppercased CWU Dash Default_Ignorable_Code_Point DI Deprecated Dep Diacritic Dia Emoji Emoji_Component Emoji_Modifier Emoji_Modifier_Base Emoji_Presentation Extender Ext Grapheme_Base Gr_Base Grapheme_Extend Gr_Ext Hex_Digit Hex IDS_Binary_Operator IDSB IDS_Trinary_Operator IDST ID_Continue IDC ID_Start IDS Ideographic Ideo Join_Control Join_C Logical_Order_Exception LOE Lowercase Lower Math Noncharacter_Code_Point NChar Pattern_Syntax Pat_Syn Pattern_White_Space Pat_WS Quotation_Mark QMark Radical Regional_Indicator RI Sentence_Terminal STerm Soft_Dotted SD Terminal_Punctuation Term Unified_Ideograph UIdeo Uppercase Upper Variation_Selector VS White_Space space XID_Continue XIDC XID_Start XIDS";
var ecma10BinaryProperties = ecma9BinaryProperties + " Extended_Pictographic";
var ecma11BinaryProperties = ecma10BinaryProperties;
var ecma12BinaryProperties = ecma11BinaryProperties + " EBase EComp EMod EPres ExtPict";
var unicodeBinaryProperties = {
  9: ecma9BinaryProperties,
  10: ecma10BinaryProperties,
  11: ecma11BinaryProperties,
  12: ecma12BinaryProperties
};

// #table-unicode-general-category-values
var unicodeGeneralCategoryValues = "Cased_Letter LC Close_Punctuation Pe Connector_Punctuation Pc Control Cc cntrl Currency_Symbol Sc Dash_Punctuation Pd Decimal_Number Nd digit Enclosing_Mark Me Final_Punctuation Pf Format Cf Initial_Punctuation Pi Letter L Letter_Number Nl Line_Separator Zl Lowercase_Letter Ll Mark M Combining_Mark Math_Symbol Sm Modifier_Letter Lm Modifier_Symbol Sk Nonspacing_Mark Mn Number N Open_Punctuation Ps Other C Other_Letter Lo Other_Number No Other_Punctuation Po Other_Symbol So Paragraph_Separator Zp Private_Use Co Punctuation P punct Separator Z Space_Separator Zs Spacing_Mark Mc Surrogate Cs Symbol S Titlecase_Letter Lt Unassigned Cn Uppercase_Letter Lu";

// #table-unicode-script-values
var ecma9ScriptValues = "Adlam Adlm Ahom Ahom Anatolian_Hieroglyphs Hluw Arabic Arab Armenian Armn Avestan Avst Balinese Bali Bamum Bamu Bassa_Vah Bass Batak Batk Bengali Beng Bhaiksuki Bhks Bopomofo Bopo Brahmi Brah Braille Brai Buginese Bugi Buhid Buhd Canadian_Aboriginal Cans Carian Cari Caucasian_Albanian Aghb Chakma Cakm Cham Cham Cherokee Cher Common Zyyy Coptic Copt Qaac Cuneiform Xsux Cypriot Cprt Cyrillic Cyrl Deseret Dsrt Devanagari Deva Duployan Dupl Egyptian_Hieroglyphs Egyp Elbasan Elba Ethiopic Ethi Georgian Geor Glagolitic Glag Gothic Goth Grantha Gran Greek Grek Gujarati Gujr Gurmukhi Guru Han Hani Hangul Hang Hanunoo Hano Hatran Hatr Hebrew Hebr Hiragana Hira Imperial_Aramaic Armi Inherited Zinh Qaai Inscriptional_Pahlavi Phli Inscriptional_Parthian Prti Javanese Java Kaithi Kthi Kannada Knda Katakana Kana Kayah_Li Kali Kharoshthi Khar Khmer Khmr Khojki Khoj Khudawadi Sind Lao Laoo Latin Latn Lepcha Lepc Limbu Limb Linear_A Lina Linear_B Linb Lisu Lisu Lycian Lyci Lydian Lydi Mahajani Mahj Malayalam Mlym Mandaic Mand Manichaean Mani Marchen Marc Masaram_Gondi Gonm Meetei_Mayek Mtei Mende_Kikakui Mend Meroitic_Cursive Merc Meroitic_Hieroglyphs Mero Miao Plrd Modi Modi Mongolian Mong Mro Mroo Multani Mult Myanmar Mymr Nabataean Nbat New_Tai_Lue Talu Newa Newa Nko Nkoo Nushu Nshu Ogham Ogam Ol_Chiki Olck Old_Hungarian Hung Old_Italic Ital Old_North_Arabian Narb Old_Permic Perm Old_Persian Xpeo Old_South_Arabian Sarb Old_Turkic Orkh Oriya Orya Osage Osge Osmanya Osma Pahawh_Hmong Hmng Palmyrene Palm Pau_Cin_Hau Pauc Phags_Pa Phag Phoenician Phnx Psalter_Pahlavi Phlp Rejang Rjng Runic Runr Samaritan Samr Saurashtra Saur Sharada Shrd Shavian Shaw Siddham Sidd SignWriting Sgnw Sinhala Sinh Sora_Sompeng Sora Soyombo Soyo Sundanese Sund Syloti_Nagri Sylo Syriac Syrc Tagalog Tglg Tagbanwa Tagb Tai_Le Tale Tai_Tham Lana Tai_Viet Tavt Takri Takr Tamil Taml Tangut Tang Telugu Telu Thaana Thaa Thai Thai Tibetan Tibt Tifinagh Tfng Tirhuta Tirh Ugaritic Ugar Vai Vaii Warang_Citi Wara Yi Yiii Zanabazar_Square Zanb";
var ecma10ScriptValues = ecma9ScriptValues + " Dogra Dogr Gunjala_Gondi Gong Hanifi_Rohingya Rohg Makasar Maka Medefaidrin Medf Old_Sogdian Sogo Sogdian Sogd";
var ecma11ScriptValues = ecma10ScriptValues + " Elymaic Elym Nandinagari Nand Nyiakeng_Puachue_Hmong Hmnp Wancho Wcho";
var ecma12ScriptValues = ecma11ScriptValues + " Chorasmian Chrs Diak Dives_Akuru Khitan_Small_Script Kits Yezi Yezidi";
var unicodeScriptValues = {
  9: ecma9ScriptValues,
  10: ecma10ScriptValues,
  11: ecma11ScriptValues,
  12: ecma12ScriptValues
};

var data = {};
function buildUnicodeData(ecmaVersion) {
  var d = data[ecmaVersion] = {
    binary: wordsRegexp(unicodeBinaryProperties[ecmaVersion] + " " + unicodeGeneralCategoryValues),
    nonBinary: {
      General_Category: wordsRegexp(unicodeGeneralCategoryValues),
      Script: wordsRegexp(unicodeScriptValues[ecmaVersion])
    }
  };
  d.nonBinary.Script_Extensions = d.nonBinary.Script;

  d.nonBinary.gc = d.nonBinary.General_Category;
  d.nonBinary.sc = d.nonBinary.Script;
  d.nonBinary.scx = d.nonBinary.Script_Extensions;
}
buildUnicodeData(9);
buildUnicodeData(10);
buildUnicodeData(11);
buildUnicodeData(12);

var pp$8 = Parser.prototype;

var RegExpValidationState = function RegExpValidationState(parser) {
  this.parser = parser;
  this.validFlags = "gim" + (parser.options.ecmaVersion >= 6 ? "uy" : "") + (parser.options.ecmaVersion >= 9 ? "s" : "") + (parser.options.ecmaVersion >= 13 ? "d" : "");
  this.unicodeProperties = data[parser.options.ecmaVersion >= 12 ? 12 : parser.options.ecmaVersion];
  this.source = "";
  this.flags = "";
  this.start = 0;
  this.switchU = false;
  this.switchN = false;
  this.pos = 0;
  this.lastIntValue = 0;
  this.lastStringValue = "";
  this.lastAssertionIsQuantifiable = false;
  this.numCapturingParens = 0;
  this.maxBackReference = 0;
  this.groupNames = [];
  this.backReferenceNames = [];
};

RegExpValidationState.prototype.reset = function reset (start, pattern, flags) {
  var unicode = flags.indexOf("u") !== -1;
  this.start = start | 0;
  this.source = pattern + "";
  this.flags = flags;
  this.switchU = unicode && this.parser.options.ecmaVersion >= 6;
  this.switchN = unicode && this.parser.options.ecmaVersion >= 9;
};

RegExpValidationState.prototype.raise = function raise (message) {
  this.parser.raiseRecoverable(this.start, ("Invalid regular expression: /" + (this.source) + "/: " + message));
};

// If u flag is given, this returns the code point at the index (it combines a surrogate pair).
// Otherwise, this returns the code unit of the index (can be a part of a surrogate pair).
RegExpValidationState.prototype.at = function at (i, forceU) {
    if ( forceU === void 0 ) forceU = false;

  var s = this.source;
  var l = s.length;
  if (i >= l) {
    return -1
  }
  var c = s.charCodeAt(i);
  if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l) {
    return c
  }
  var next = s.charCodeAt(i + 1);
  return next >= 0xDC00 && next <= 0xDFFF ? (c << 10) + next - 0x35FDC00 : c
};

RegExpValidationState.prototype.nextIndex = function nextIndex (i, forceU) {
    if ( forceU === void 0 ) forceU = false;

  var s = this.source;
  var l = s.length;
  if (i >= l) {
    return l
  }
  var c = s.charCodeAt(i), next;
  if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l ||
      (next = s.charCodeAt(i + 1)) < 0xDC00 || next > 0xDFFF) {
    return i + 1
  }
  return i + 2
};

RegExpValidationState.prototype.current = function current (forceU) {
    if ( forceU === void 0 ) forceU = false;

  return this.at(this.pos, forceU)
};

RegExpValidationState.prototype.lookahead = function lookahead (forceU) {
    if ( forceU === void 0 ) forceU = false;

  return this.at(this.nextIndex(this.pos, forceU), forceU)
};

RegExpValidationState.prototype.advance = function advance (forceU) {
    if ( forceU === void 0 ) forceU = false;

  this.pos = this.nextIndex(this.pos, forceU);
};

RegExpValidationState.prototype.eat = function eat (ch, forceU) {
    if ( forceU === void 0 ) forceU = false;

  if (this.current(forceU) === ch) {
    this.advance(forceU);
    return true
  }
  return false
};

function codePointToString(ch) {
  if (ch <= 0xFFFF) { return String.fromCharCode(ch) }
  ch -= 0x10000;
  return String.fromCharCode((ch >> 10) + 0xD800, (ch & 0x03FF) + 0xDC00)
}

/**
 * Validate the flags part of a given RegExpLiteral.
 *
 * @param {RegExpValidationState} state The state to validate RegExp.
 * @returns {void}
 */
pp$8.validateRegExpFlags = function(state) {
  var validFlags = state.validFlags;
  var flags = state.flags;

  for (var i = 0; i < flags.length; i++) {
    var flag = flags.charAt(i);
    if (validFlags.indexOf(flag) === -1) {
      this.raise(state.start, "Invalid regular expression flag");
    }
    if (flags.indexOf(flag, i + 1) > -1) {
      this.raise(state.start, "Duplicate regular expression flag");
    }
  }
};

/**
 * Validate the pattern part of a given RegExpLiteral.
 *
 * @param {RegExpValidationState} state The state to validate RegExp.
 * @returns {void}
 */
pp$8.validateRegExpPattern = function(state) {
  this.regexp_pattern(state);

  // The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of
  // parsing contains a |GroupName|, reparse with the goal symbol
  // |Pattern[~U, +N]| and use this result instead. Throw a *SyntaxError*
  // exception if _P_ did not conform to the grammar, if any elements of _P_
  // were not matched by the parse, or if any Early Error conditions exist.
  if (!state.switchN && this.options.ecmaVersion >= 9 && state.groupNames.length > 0) {
    state.switchN = true;
    this.regexp_pattern(state);
  }
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-Pattern
pp$8.regexp_pattern = function(state) {
  state.pos = 0;
  state.lastIntValue = 0;
  state.lastStringValue = "";
  state.lastAssertionIsQuantifiable = false;
  state.numCapturingParens = 0;
  state.maxBackReference = 0;
  state.groupNames.length = 0;
  state.backReferenceNames.length = 0;

  this.regexp_disjunction(state);

  if (state.pos !== state.source.length) {
    // Make the same messages as V8.
    if (state.eat(0x29 /* ) */)) {
      state.raise("Unmatched ')'");
    }
    if (state.eat(0x5D /* ] */) || state.eat(0x7D /* } */)) {
      state.raise("Lone quantifier brackets");
    }
  }
  if (state.maxBackReference > state.numCapturingParens) {
    state.raise("Invalid escape");
  }
  for (var i = 0, list = state.backReferenceNames; i < list.length; i += 1) {
    var name = list[i];

    if (state.groupNames.indexOf(name) === -1) {
      state.raise("Invalid named capture referenced");
    }
  }
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-Disjunction
pp$8.regexp_disjunction = function(state) {
  this.regexp_alternative(state);
  while (state.eat(0x7C /* | */)) {
    this.regexp_alternative(state);
  }

  // Make the same message as V8.
  if (this.regexp_eatQuantifier(state, true)) {
    state.raise("Nothing to repeat");
  }
  if (state.eat(0x7B /* { */)) {
    state.raise("Lone quantifier brackets");
  }
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-Alternative
pp$8.regexp_alternative = function(state) {
  while (state.pos < state.source.length && this.regexp_eatTerm(state))
    { }
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term
pp$8.regexp_eatTerm = function(state) {
  if (this.regexp_eatAssertion(state)) {
    // Handle `QuantifiableAssertion Quantifier` alternative.
    // `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion
    // is a QuantifiableAssertion.
    if (state.lastAssertionIsQuantifiable && this.regexp_eatQuantifier(state)) {
      // Make the same message as V8.
      if (state.switchU) {
        state.raise("Invalid quantifier");
      }
    }
    return true
  }

  if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) {
    this.regexp_eatQuantifier(state);
    return true
  }

  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Assertion
pp$8.regexp_eatAssertion = function(state) {
  var start = state.pos;
  state.lastAssertionIsQuantifiable = false;

  // ^, $
  if (state.eat(0x5E /* ^ */) || state.eat(0x24 /* $ */)) {
    return true
  }

  // \b \B
  if (state.eat(0x5C /* \ */)) {
    if (state.eat(0x42 /* B */) || state.eat(0x62 /* b */)) {
      return true
    }
    state.pos = start;
  }

  // Lookahead / Lookbehind
  if (state.eat(0x28 /* ( */) && state.eat(0x3F /* ? */)) {
    var lookbehind = false;
    if (this.options.ecmaVersion >= 9) {
      lookbehind = state.eat(0x3C /* < */);
    }
    if (state.eat(0x3D /* = */) || state.eat(0x21 /* ! */)) {
      this.regexp_disjunction(state);
      if (!state.eat(0x29 /* ) */)) {
        state.raise("Unterminated group");
      }
      state.lastAssertionIsQuantifiable = !lookbehind;
      return true
    }
  }

  state.pos = start;
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-Quantifier
pp$8.regexp_eatQuantifier = function(state, noError) {
  if ( noError === void 0 ) noError = false;

  if (this.regexp_eatQuantifierPrefix(state, noError)) {
    state.eat(0x3F /* ? */);
    return true
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix
pp$8.regexp_eatQuantifierPrefix = function(state, noError) {
  return (
    state.eat(0x2A /* * */) ||
    state.eat(0x2B /* + */) ||
    state.eat(0x3F /* ? */) ||
    this.regexp_eatBracedQuantifier(state, noError)
  )
};
pp$8.regexp_eatBracedQuantifier = function(state, noError) {
  var start = state.pos;
  if (state.eat(0x7B /* { */)) {
    var min = 0, max = -1;
    if (this.regexp_eatDecimalDigits(state)) {
      min = state.lastIntValue;
      if (state.eat(0x2C /* , */) && this.regexp_eatDecimalDigits(state)) {
        max = state.lastIntValue;
      }
      if (state.eat(0x7D /* } */)) {
        // SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-term
        if (max !== -1 && max < min && !noError) {
          state.raise("numbers out of order in {} quantifier");
        }
        return true
      }
    }
    if (state.switchU && !noError) {
      state.raise("Incomplete quantifier");
    }
    state.pos = start;
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-Atom
pp$8.regexp_eatAtom = function(state) {
  return (
    this.regexp_eatPatternCharacters(state) ||
    state.eat(0x2E /* . */) ||
    this.regexp_eatReverseSolidusAtomEscape(state) ||
    this.regexp_eatCharacterClass(state) ||
    this.regexp_eatUncapturingGroup(state) ||
    this.regexp_eatCapturingGroup(state)
  )
};
pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
  var start = state.pos;
  if (state.eat(0x5C /* \ */)) {
    if (this.regexp_eatAtomEscape(state)) {
      return true
    }
    state.pos = start;
  }
  return false
};
pp$8.regexp_eatUncapturingGroup = function(state) {
  var start = state.pos;
  if (state.eat(0x28 /* ( */)) {
    if (state.eat(0x3F /* ? */) && state.eat(0x3A /* : */)) {
      this.regexp_disjunction(state);
      if (state.eat(0x29 /* ) */)) {
        return true
      }
      state.raise("Unterminated group");
    }
    state.pos = start;
  }
  return false
};
pp$8.regexp_eatCapturingGroup = function(state) {
  if (state.eat(0x28 /* ( */)) {
    if (this.options.ecmaVersion >= 9) {
      this.regexp_groupSpecifier(state);
    } else if (state.current() === 0x3F /* ? */) {
      state.raise("Invalid group");
    }
    this.regexp_disjunction(state);
    if (state.eat(0x29 /* ) */)) {
      state.numCapturingParens += 1;
      return true
    }
    state.raise("Unterminated group");
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedAtom
pp$8.regexp_eatExtendedAtom = function(state) {
  return (
    state.eat(0x2E /* . */) ||
    this.regexp_eatReverseSolidusAtomEscape(state) ||
    this.regexp_eatCharacterClass(state) ||
    this.regexp_eatUncapturingGroup(state) ||
    this.regexp_eatCapturingGroup(state) ||
    this.regexp_eatInvalidBracedQuantifier(state) ||
    this.regexp_eatExtendedPatternCharacter(state)
  )
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier
pp$8.regexp_eatInvalidBracedQuantifier = function(state) {
  if (this.regexp_eatBracedQuantifier(state, true)) {
    state.raise("Nothing to repeat");
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-SyntaxCharacter
pp$8.regexp_eatSyntaxCharacter = function(state) {
  var ch = state.current();
  if (isSyntaxCharacter(ch)) {
    state.lastIntValue = ch;
    state.advance();
    return true
  }
  return false
};
function isSyntaxCharacter(ch) {
  return (
    ch === 0x24 /* $ */ ||
    ch >= 0x28 /* ( */ && ch <= 0x2B /* + */ ||
    ch === 0x2E /* . */ ||
    ch === 0x3F /* ? */ ||
    ch >= 0x5B /* [ */ && ch <= 0x5E /* ^ */ ||
    ch >= 0x7B /* { */ && ch <= 0x7D /* } */
  )
}

// https://www.ecma-international.org/ecma-262/8.0/#prod-PatternCharacter
// But eat eager.
pp$8.regexp_eatPatternCharacters = function(state) {
  var start = state.pos;
  var ch = 0;
  while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) {
    state.advance();
  }
  return state.pos !== start
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedPatternCharacter
pp$8.regexp_eatExtendedPatternCharacter = function(state) {
  var ch = state.current();
  if (
    ch !== -1 &&
    ch !== 0x24 /* $ */ &&
    !(ch >= 0x28 /* ( */ && ch <= 0x2B /* + */) &&
    ch !== 0x2E /* . */ &&
    ch !== 0x3F /* ? */ &&
    ch !== 0x5B /* [ */ &&
    ch !== 0x5E /* ^ */ &&
    ch !== 0x7C /* | */
  ) {
    state.advance();
    return true
  }
  return false
};

// GroupSpecifier ::
//   [empty]
//   `?` GroupName
pp$8.regexp_groupSpecifier = function(state) {
  if (state.eat(0x3F /* ? */)) {
    if (this.regexp_eatGroupName(state)) {
      if (state.groupNames.indexOf(state.lastStringValue) !== -1) {
        state.raise("Duplicate capture group name");
      }
      state.groupNames.push(state.lastStringValue);
      return
    }
    state.raise("Invalid group");
  }
};

// GroupName ::
//   `<` RegExpIdentifierName `>`
// Note: this updates `state.lastStringValue` property with the eaten name.
pp$8.regexp_eatGroupName = function(state) {
  state.lastStringValue = "";
  if (state.eat(0x3C /* < */)) {
    if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) {
      return true
    }
    state.raise("Invalid capture group name");
  }
  return false
};

// RegExpIdentifierName ::
//   RegExpIdentifierStart
//   RegExpIdentifierName RegExpIdentifierPart
// Note: this updates `state.lastStringValue` property with the eaten name.
pp$8.regexp_eatRegExpIdentifierName = function(state) {
  state.lastStringValue = "";
  if (this.regexp_eatRegExpIdentifierStart(state)) {
    state.lastStringValue += codePointToString(state.lastIntValue);
    while (this.regexp_eatRegExpIdentifierPart(state)) {
      state.lastStringValue += codePointToString(state.lastIntValue);
    }
    return true
  }
  return false
};

// RegExpIdentifierStart ::
//   UnicodeIDStart
//   `$`
//   `_`
//   `\` RegExpUnicodeEscapeSequence[+U]
pp$8.regexp_eatRegExpIdentifierStart = function(state) {
  var start = state.pos;
  var forceU = this.options.ecmaVersion >= 11;
  var ch = state.current(forceU);
  state.advance(forceU);

  if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) {
    ch = state.lastIntValue;
  }
  if (isRegExpIdentifierStart(ch)) {
    state.lastIntValue = ch;
    return true
  }

  state.pos = start;
  return false
};
function isRegExpIdentifierStart(ch) {
  return isIdentifierStart(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */
}

// RegExpIdentifierPart ::
//   UnicodeIDContinue
//   `$`
//   `_`
//   `\` RegExpUnicodeEscapeSequence[+U]
//   <ZWNJ>
//   <ZWJ>
pp$8.regexp_eatRegExpIdentifierPart = function(state) {
  var start = state.pos;
  var forceU = this.options.ecmaVersion >= 11;
  var ch = state.current(forceU);
  state.advance(forceU);

  if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) {
    ch = state.lastIntValue;
  }
  if (isRegExpIdentifierPart(ch)) {
    state.lastIntValue = ch;
    return true
  }

  state.pos = start;
  return false
};
function isRegExpIdentifierPart(ch) {
  return isIdentifierChar(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ || ch === 0x200C /* <ZWNJ> */ || ch === 0x200D /* <ZWJ> */
}

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape
pp$8.regexp_eatAtomEscape = function(state) {
  if (
    this.regexp_eatBackReference(state) ||
    this.regexp_eatCharacterClassEscape(state) ||
    this.regexp_eatCharacterEscape(state) ||
    (state.switchN && this.regexp_eatKGroupName(state))
  ) {
    return true
  }
  if (state.switchU) {
    // Make the same message as V8.
    if (state.current() === 0x63 /* c */) {
      state.raise("Invalid unicode escape");
    }
    state.raise("Invalid escape");
  }
  return false
};
pp$8.regexp_eatBackReference = function(state) {
  var start = state.pos;
  if (this.regexp_eatDecimalEscape(state)) {
    var n = state.lastIntValue;
    if (state.switchU) {
      // For SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-atomescape
      if (n > state.maxBackReference) {
        state.maxBackReference = n;
      }
      return true
    }
    if (n <= state.numCapturingParens) {
      return true
    }
    state.pos = start;
  }
  return false
};
pp$8.regexp_eatKGroupName = function(state) {
  if (state.eat(0x6B /* k */)) {
    if (this.regexp_eatGroupName(state)) {
      state.backReferenceNames.push(state.lastStringValue);
      return true
    }
    state.raise("Invalid named reference");
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape
pp$8.regexp_eatCharacterEscape = function(state) {
  return (
    this.regexp_eatControlEscape(state) ||
    this.regexp_eatCControlLetter(state) ||
    this.regexp_eatZero(state) ||
    this.regexp_eatHexEscapeSequence(state) ||
    this.regexp_eatRegExpUnicodeEscapeSequence(state, false) ||
    (!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
    this.regexp_eatIdentityEscape(state)
  )
};
pp$8.regexp_eatCControlLetter = function(state) {
  var start = state.pos;
  if (state.eat(0x63 /* c */)) {
    if (this.regexp_eatControlLetter(state)) {
      return true
    }
    state.pos = start;
  }
  return false
};
pp$8.regexp_eatZero = function(state) {
  if (state.current() === 0x30 /* 0 */ && !isDecimalDigit(state.lookahead())) {
    state.lastIntValue = 0;
    state.advance();
    return true
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-ControlEscape
pp$8.regexp_eatControlEscape = function(state) {
  var ch = state.current();
  if (ch === 0x74 /* t */) {
    state.lastIntValue = 0x09; /* \t */
    state.advance();
    return true
  }
  if (ch === 0x6E /* n */) {
    state.lastIntValue = 0x0A; /* \n */
    state.advance();
    return true
  }
  if (ch === 0x76 /* v */) {
    state.lastIntValue = 0x0B; /* \v */
    state.advance();
    return true
  }
  if (ch === 0x66 /* f */) {
    state.lastIntValue = 0x0C; /* \f */
    state.advance();
    return true
  }
  if (ch === 0x72 /* r */) {
    state.lastIntValue = 0x0D; /* \r */
    state.advance();
    return true
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-ControlLetter
pp$8.regexp_eatControlLetter = function(state) {
  var ch = state.current();
  if (isControlLetter(ch)) {
    state.lastIntValue = ch % 0x20;
    state.advance();
    return true
  }
  return false
};
function isControlLetter(ch) {
  return (
    (ch >= 0x41 /* A */ && ch <= 0x5A /* Z */) ||
    (ch >= 0x61 /* a */ && ch <= 0x7A /* z */)
  )
}

// https://www.ecma-international.org/ecma-262/8.0/#prod-RegExpUnicodeEscapeSequence
pp$8.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU) {
  if ( forceU === void 0 ) forceU = false;

  var start = state.pos;
  var switchU = forceU || state.switchU;

  if (state.eat(0x75 /* u */)) {
    if (this.regexp_eatFixedHexDigits(state, 4)) {
      var lead = state.lastIntValue;
      if (switchU && lead >= 0xD800 && lead <= 0xDBFF) {
        var leadSurrogateEnd = state.pos;
        if (state.eat(0x5C /* \ */) && state.eat(0x75 /* u */) && this.regexp_eatFixedHexDigits(state, 4)) {
          var trail = state.lastIntValue;
          if (trail >= 0xDC00 && trail <= 0xDFFF) {
            state.lastIntValue = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
            return true
          }
        }
        state.pos = leadSurrogateEnd;
        state.lastIntValue = lead;
      }
      return true
    }
    if (
      switchU &&
      state.eat(0x7B /* { */) &&
      this.regexp_eatHexDigits(state) &&
      state.eat(0x7D /* } */) &&
      isValidUnicode(state.lastIntValue)
    ) {
      return true
    }
    if (switchU) {
      state.raise("Invalid unicode escape");
    }
    state.pos = start;
  }

  return false
};
function isValidUnicode(ch) {
  return ch >= 0 && ch <= 0x10FFFF
}

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-IdentityEscape
pp$8.regexp_eatIdentityEscape = function(state) {
  if (state.switchU) {
    if (this.regexp_eatSyntaxCharacter(state)) {
      return true
    }
    if (state.eat(0x2F /* / */)) {
      state.lastIntValue = 0x2F; /* / */
      return true
    }
    return false
  }

  var ch = state.current();
  if (ch !== 0x63 /* c */ && (!state.switchN || ch !== 0x6B /* k */)) {
    state.lastIntValue = ch;
    state.advance();
    return true
  }

  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalEscape
pp$8.regexp_eatDecimalEscape = function(state) {
  state.lastIntValue = 0;
  var ch = state.current();
  if (ch >= 0x31 /* 1 */ && ch <= 0x39 /* 9 */) {
    do {
      state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */);
      state.advance();
    } while ((ch = state.current()) >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */)
    return true
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClassEscape
pp$8.regexp_eatCharacterClassEscape = function(state) {
  var ch = state.current();

  if (isCharacterClassEscape(ch)) {
    state.lastIntValue = -1;
    state.advance();
    return true
  }

  if (
    state.switchU &&
    this.options.ecmaVersion >= 9 &&
    (ch === 0x50 /* P */ || ch === 0x70 /* p */)
  ) {
    state.lastIntValue = -1;
    state.advance();
    if (
      state.eat(0x7B /* { */) &&
      this.regexp_eatUnicodePropertyValueExpression(state) &&
      state.eat(0x7D /* } */)
    ) {
      return true
    }
    state.raise("Invalid property name");
  }

  return false
};
function isCharacterClassEscape(ch) {
  return (
    ch === 0x64 /* d */ ||
    ch === 0x44 /* D */ ||
    ch === 0x73 /* s */ ||
    ch === 0x53 /* S */ ||
    ch === 0x77 /* w */ ||
    ch === 0x57 /* W */
  )
}

// UnicodePropertyValueExpression ::
//   UnicodePropertyName `=` UnicodePropertyValue
//   LoneUnicodePropertyNameOrValue
pp$8.regexp_eatUnicodePropertyValueExpression = function(state) {
  var start = state.pos;

  // UnicodePropertyName `=` UnicodePropertyValue
  if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) {
    var name = state.lastStringValue;
    if (this.regexp_eatUnicodePropertyValue(state)) {
      var value = state.lastStringValue;
      this.regexp_validateUnicodePropertyNameAndValue(state, name, value);
      return true
    }
  }
  state.pos = start;

  // LoneUnicodePropertyNameOrValue
  if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) {
    var nameOrValue = state.lastStringValue;
    this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue);
    return true
  }
  return false
};
pp$8.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
  if (!has$1(state.unicodeProperties.nonBinary, name))
    { state.raise("Invalid property name"); }
  if (!state.unicodeProperties.nonBinary[name].test(value))
    { state.raise("Invalid property value"); }
};
pp$8.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) {
  if (!state.unicodeProperties.binary.test(nameOrValue))
    { state.raise("Invalid property name"); }
};

// UnicodePropertyName ::
//   UnicodePropertyNameCharacters
pp$8.regexp_eatUnicodePropertyName = function(state) {
  var ch = 0;
  state.lastStringValue = "";
  while (isUnicodePropertyNameCharacter(ch = state.current())) {
    state.lastStringValue += codePointToString(ch);
    state.advance();
  }
  return state.lastStringValue !== ""
};
function isUnicodePropertyNameCharacter(ch) {
  return isControlLetter(ch) || ch === 0x5F /* _ */
}

// UnicodePropertyValue ::
//   UnicodePropertyValueCharacters
pp$8.regexp_eatUnicodePropertyValue = function(state) {
  var ch = 0;
  state.lastStringValue = "";
  while (isUnicodePropertyValueCharacter(ch = state.current())) {
    state.lastStringValue += codePointToString(ch);
    state.advance();
  }
  return state.lastStringValue !== ""
};
function isUnicodePropertyValueCharacter(ch) {
  return isUnicodePropertyNameCharacter(ch) || isDecimalDigit(ch)
}

// LoneUnicodePropertyNameOrValue ::
//   UnicodePropertyValueCharacters
pp$8.regexp_eatLoneUnicodePropertyNameOrValue = function(state) {
  return this.regexp_eatUnicodePropertyValue(state)
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClass
pp$8.regexp_eatCharacterClass = function(state) {
  if (state.eat(0x5B /* [ */)) {
    state.eat(0x5E /* ^ */);
    this.regexp_classRanges(state);
    if (state.eat(0x5D /* ] */)) {
      return true
    }
    // Unreachable since it threw "unterminated regular expression" error before.
    state.raise("Unterminated character class");
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-ClassRanges
// https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRanges
// https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRangesNoDash
pp$8.regexp_classRanges = function(state) {
  while (this.regexp_eatClassAtom(state)) {
    var left = state.lastIntValue;
    if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) {
      var right = state.lastIntValue;
      if (state.switchU && (left === -1 || right === -1)) {
        state.raise("Invalid character class");
      }
      if (left !== -1 && right !== -1 && left > right) {
        state.raise("Range out of order in character class");
      }
    }
  }
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtom
// https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtomNoDash
pp$8.regexp_eatClassAtom = function(state) {
  var start = state.pos;

  if (state.eat(0x5C /* \ */)) {
    if (this.regexp_eatClassEscape(state)) {
      return true
    }
    if (state.switchU) {
      // Make the same message as V8.
      var ch$1 = state.current();
      if (ch$1 === 0x63 /* c */ || isOctalDigit(ch$1)) {
        state.raise("Invalid class escape");
      }
      state.raise("Invalid escape");
    }
    state.pos = start;
  }

  var ch = state.current();
  if (ch !== 0x5D /* ] */) {
    state.lastIntValue = ch;
    state.advance();
    return true
  }

  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassEscape
pp$8.regexp_eatClassEscape = function(state) {
  var start = state.pos;

  if (state.eat(0x62 /* b */)) {
    state.lastIntValue = 0x08; /* <BS> */
    return true
  }

  if (state.switchU && state.eat(0x2D /* - */)) {
    state.lastIntValue = 0x2D; /* - */
    return true
  }

  if (!state.switchU && state.eat(0x63 /* c */)) {
    if (this.regexp_eatClassControlLetter(state)) {
      return true
    }
    state.pos = start;
  }

  return (
    this.regexp_eatCharacterClassEscape(state) ||
    this.regexp_eatCharacterEscape(state)
  )
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassControlLetter
pp$8.regexp_eatClassControlLetter = function(state) {
  var ch = state.current();
  if (isDecimalDigit(ch) || ch === 0x5F /* _ */) {
    state.lastIntValue = ch % 0x20;
    state.advance();
    return true
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence
pp$8.regexp_eatHexEscapeSequence = function(state) {
  var start = state.pos;
  if (state.eat(0x78 /* x */)) {
    if (this.regexp_eatFixedHexDigits(state, 2)) {
      return true
    }
    if (state.switchU) {
      state.raise("Invalid escape");
    }
    state.pos = start;
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalDigits
pp$8.regexp_eatDecimalDigits = function(state) {
  var start = state.pos;
  var ch = 0;
  state.lastIntValue = 0;
  while (isDecimalDigit(ch = state.current())) {
    state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */);
    state.advance();
  }
  return state.pos !== start
};
function isDecimalDigit(ch) {
  return ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */
}

// https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigits
pp$8.regexp_eatHexDigits = function(state) {
  var start = state.pos;
  var ch = 0;
  state.lastIntValue = 0;
  while (isHexDigit(ch = state.current())) {
    state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);
    state.advance();
  }
  return state.pos !== start
};
function isHexDigit(ch) {
  return (
    (ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */) ||
    (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) ||
    (ch >= 0x61 /* a */ && ch <= 0x66 /* f */)
  )
}
function hexToInt(ch) {
  if (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) {
    return 10 + (ch - 0x41 /* A */)
  }
  if (ch >= 0x61 /* a */ && ch <= 0x66 /* f */) {
    return 10 + (ch - 0x61 /* a */)
  }
  return ch - 0x30 /* 0 */
}

// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-LegacyOctalEscapeSequence
// Allows only 0-377(octal) i.e. 0-255(decimal).
pp$8.regexp_eatLegacyOctalEscapeSequence = function(state) {
  if (this.regexp_eatOctalDigit(state)) {
    var n1 = state.lastIntValue;
    if (this.regexp_eatOctalDigit(state)) {
      var n2 = state.lastIntValue;
      if (n1 <= 3 && this.regexp_eatOctalDigit(state)) {
        state.lastIntValue = n1 * 64 + n2 * 8 + state.lastIntValue;
      } else {
        state.lastIntValue = n1 * 8 + n2;
      }
    } else {
      state.lastIntValue = n1;
    }
    return true
  }
  return false
};

// https://www.ecma-international.org/ecma-262/8.0/#prod-OctalDigit
pp$8.regexp_eatOctalDigit = function(state) {
  var ch = state.current();
  if (isOctalDigit(ch)) {
    state.lastIntValue = ch - 0x30; /* 0 */
    state.advance();
    return true
  }
  state.lastIntValue = 0;
  return false
};
function isOctalDigit(ch) {
  return ch >= 0x30 /* 0 */ && ch <= 0x37 /* 7 */
}

// https://www.ecma-international.org/ecma-262/8.0/#prod-Hex4Digits
// https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigit
// And HexDigit HexDigit in https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence
pp$8.regexp_eatFixedHexDigits = function(state, length) {
  var start = state.pos;
  state.lastIntValue = 0;
  for (var i = 0; i < length; ++i) {
    var ch = state.current();
    if (!isHexDigit(ch)) {
      state.pos = start;
      return false
    }
    state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);
    state.advance();
  }
  return true
};

// Object type used to represent tokens. Note that normally, tokens
// simply exist as properties on the parser object. This is only
// used for the onToken callback and the external tokenizer.

var Token = function Token(p) {
  this.type = p.type;
  this.value = p.value;
  this.start = p.start;
  this.end = p.end;
  if (p.options.locations)
    { this.loc = new SourceLocation(p, p.startLoc, p.endLoc); }
  if (p.options.ranges)
    { this.range = [p.start, p.end]; }
};

// ## Tokenizer

var pp$9 = Parser.prototype;

// Move to the next token

pp$9.next = function(ignoreEscapeSequenceInKeyword) {
  if (!ignoreEscapeSequenceInKeyword && this.type.keyword && this.containsEsc)
    { this.raiseRecoverable(this.start, "Escape sequence in keyword " + this.type.keyword); }
  if (this.options.onToken)
    { this.options.onToken(new Token(this)); }

  this.lastTokEnd = this.end;
  this.lastTokStart = this.start;
  this.lastTokEndLoc = this.endLoc;
  this.lastTokStartLoc = this.startLoc;
  this.nextToken();
};

pp$9.getToken = function() {
  this.next();
  return new Token(this)
};

// If we're in an ES6 environment, make parsers iterable
if (typeof Symbol !== "undefined")
  { pp$9[Symbol.iterator] = function() {
    var this$1$1 = this;

    return {
      next: function () {
        var token = this$1$1.getToken();
        return {
          done: token.type === types.eof,
          value: token
        }
      }
    }
  }; }

// Toggle strict mode. Re-reads the next number or string to please
// pedantic tests (`"use strict"; 010;` should fail).

// Read a single token, updating the parser object's token-related
// properties.

pp$9.nextToken = function() {
  var curContext = this.curContext();
  if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }

  this.start = this.pos;
  if (this.options.locations) { this.startLoc = this.curPosition(); }
  if (this.pos >= this.input.length) { return this.finishToken(types.eof) }

  if (curContext.override) { return curContext.override(this) }
  else { this.readToken(this.fullCharCodeAtPos()); }
};

pp$9.readToken = function(code) {
  // Identifier or keyword. '\uXXXX' sequences are allowed in
  // identifiers, so '\' also dispatches to that.
  if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
    { return this.readWord() }

  return this.getTokenFromCode(code)
};

pp$9.fullCharCodeAtPos = function() {
  var code = this.input.charCodeAt(this.pos);
  if (code <= 0xd7ff || code >= 0xdc00) { return code }
  var next = this.input.charCodeAt(this.pos + 1);
  return next <= 0xdbff || next >= 0xe000 ? code : (code << 10) + next - 0x35fdc00
};

pp$9.skipBlockComment = function() {
  var startLoc = this.options.onComment && this.curPosition();
  var start = this.pos, end = this.input.indexOf("*/", this.pos += 2);
  if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); }
  this.pos = end + 2;
  if (this.options.locations) {
    lineBreakG.lastIndex = start;
    var match;
    while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
      ++this.curLine;
      this.lineStart = match.index + match[0].length;
    }
  }
  if (this.options.onComment)
    { this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
                           startLoc, this.curPosition()); }
};

pp$9.skipLineComment = function(startSkip) {
  var start = this.pos;
  var startLoc = this.options.onComment && this.curPosition();
  var ch = this.input.charCodeAt(this.pos += startSkip);
  while (this.pos < this.input.length && !isNewLine(ch)) {
    ch = this.input.charCodeAt(++this.pos);
  }
  if (this.options.onComment)
    { this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
                           startLoc, this.curPosition()); }
};

// Called at the start of the parse and after every token. Skips
// whitespace and comments, and.

pp$9.skipSpace = function() {
  loop: while (this.pos < this.input.length) {
    var ch = this.input.charCodeAt(this.pos);
    switch (ch) {
    case 32: case 160: // ' '
      ++this.pos;
      break
    case 13:
      if (this.input.charCodeAt(this.pos + 1) === 10) {
        ++this.pos;
      }
    case 10: case 8232: case 8233:
      ++this.pos;
      if (this.options.locations) {
        ++this.curLine;
        this.lineStart = this.pos;
      }
      break
    case 47: // '/'
      switch (this.input.charCodeAt(this.pos + 1)) {
      case 42: // '*'
        this.skipBlockComment();
        break
      case 47:
        this.skipLineComment(2);
        break
      default:
        break loop
      }
      break
    default:
      if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
        ++this.pos;
      } else {
        break loop
      }
    }
  }
};

// Called at the end of every token. Sets `end`, `val`, and
// maintains `context` and `exprAllowed`, and skips the space after
// the token, so that the next one's `start` will point at the
// right position.

pp$9.finishToken = function(type, val) {
  this.end = this.pos;
  if (this.options.locations) { this.endLoc = this.curPosition(); }
  var prevType = this.type;
  this.type = type;
  this.value = val;

  this.updateContext(prevType);
};

// ### Token reading

// This is the function that is called to fetch the next token. It
// is somewhat obscure, because it works in character codes rather
// than characters, and because operator parsing has been inlined
// into it.
//
// All in the name of speed.
//
pp$9.readToken_dot = function() {
  var next = this.input.charCodeAt(this.pos + 1);
  if (next >= 48 && next <= 57) { return this.readNumber(true) }
  var next2 = this.input.charCodeAt(this.pos + 2);
  if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
    this.pos += 3;
    return this.finishToken(types.ellipsis)
  } else {
    ++this.pos;
    return this.finishToken(types.dot)
  }
};

pp$9.readToken_slash = function() { // '/'
  var next = this.input.charCodeAt(this.pos + 1);
  if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
  if (next === 61) { return this.finishOp(types.assign, 2) }
  return this.finishOp(types.slash, 1)
};

pp$9.readToken_mult_modulo_exp = function(code) { // '%*'
  var next = this.input.charCodeAt(this.pos + 1);
  var size = 1;
  var tokentype = code === 42 ? types.star : types.modulo;

  // exponentiation operator ** and **=
  if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) {
    ++size;
    tokentype = types.starstar;
    next = this.input.charCodeAt(this.pos + 2);
  }

  if (next === 61) { return this.finishOp(types.assign, size + 1) }
  return this.finishOp(tokentype, size)
};

pp$9.readToken_pipe_amp = function(code) { // '|&'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === code) {
    if (this.options.ecmaVersion >= 12) {
      var next2 = this.input.charCodeAt(this.pos + 2);
      if (next2 === 61) { return this.finishOp(types.assign, 3) }
    }
    return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2)
  }
  if (next === 61) { return this.finishOp(types.assign, 2) }
  return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1)
};

pp$9.readToken_caret = function() { // '^'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === 61) { return this.finishOp(types.assign, 2) }
  return this.finishOp(types.bitwiseXOR, 1)
};

pp$9.readToken_plus_min = function(code) { // '+-'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === code) {
    if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 &&
        (this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) {
      // A `-->` line comment
      this.skipLineComment(3);
      this.skipSpace();
      return this.nextToken()
    }
    return this.finishOp(types.incDec, 2)
  }
  if (next === 61) { return this.finishOp(types.assign, 2) }
  return this.finishOp(types.plusMin, 1)
};

pp$9.readToken_lt_gt = function(code) { // '<>'
  var next = this.input.charCodeAt(this.pos + 1);
  var size = 1;
  if (next === code) {
    size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
    if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) }
    return this.finishOp(types.bitShift, size)
  }
  if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 &&
      this.input.charCodeAt(this.pos + 3) === 45) {
    // `<!--`, an XML-style comment that should be interpreted as a line comment
    this.skipLineComment(4);
    this.skipSpace();
    return this.nextToken()
  }
  if (next === 61) { size = 2; }
  return this.finishOp(types.relational, size)
};

pp$9.readToken_eq_excl = function(code) { // '=!'
  var next = this.input.charCodeAt(this.pos + 1);
  if (next === 61) { return this.finishOp(types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
  if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
    this.pos += 2;
    return this.finishToken(types.arrow)
  }
  return this.finishOp(code === 61 ? types.eq : types.prefix, 1)
};

pp$9.readToken_question = function() { // '?'
  var ecmaVersion = this.options.ecmaVersion;
  if (ecmaVersion >= 11) {
    var next = this.input.charCodeAt(this.pos + 1);
    if (next === 46) {
      var next2 = this.input.charCodeAt(this.pos + 2);
      if (next2 < 48 || next2 > 57) { return this.finishOp(types.questionDot, 2) }
    }
    if (next === 63) {
      if (ecmaVersion >= 12) {
        var next2$1 = this.input.charCodeAt(this.pos + 2);
        if (next2$1 === 61) { return this.finishOp(types.assign, 3) }
      }
      return this.finishOp(types.coalesce, 2)
    }
  }
  return this.finishOp(types.question, 1)
};

pp$9.readToken_numberSign = function() { // '#'
  var ecmaVersion = this.options.ecmaVersion;
  var code = 35; // '#'
  if (ecmaVersion >= 13) {
    ++this.pos;
    code = this.fullCharCodeAtPos();
    if (isIdentifierStart(code, true) || code === 92 /* '\' */) {
      return this.finishToken(types.privateId, this.readWord1())
    }
  }

  this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
};

pp$9.getTokenFromCode = function(code) {
  switch (code) {
  // The interpretation of a dot depends on whether it is followed
  // by a digit or another two dots.
  case 46: // '.'
    return this.readToken_dot()

  // Punctuation tokens.
  case 40: ++this.pos; return this.finishToken(types.parenL)
  case 41: ++this.pos; return this.finishToken(types.parenR)
  case 59: ++this.pos; return this.finishToken(types.semi)
  case 44: ++this.pos; return this.finishToken(types.comma)
  case 91: ++this.pos; return this.finishToken(types.bracketL)
  case 93: ++this.pos; return this.finishToken(types.bracketR)
  case 123: ++this.pos; return this.finishToken(types.braceL)
  case 125: ++this.pos; return this.finishToken(types.braceR)
  case 58: ++this.pos; return this.finishToken(types.colon)

  case 96: // '`'
    if (this.options.ecmaVersion < 6) { break }
    ++this.pos;
    return this.finishToken(types.backQuote)

  case 48: // '0'
    var next = this.input.charCodeAt(this.pos + 1);
    if (next === 120 || next === 88) { return this.readRadixNumber(16) } // '0x', '0X' - hex number
    if (this.options.ecmaVersion >= 6) {
      if (next === 111 || next === 79) { return this.readRadixNumber(8) } // '0o', '0O' - octal number
      if (next === 98 || next === 66) { return this.readRadixNumber(2) } // '0b', '0B' - binary number
    }

  // Anything else beginning with a digit is an integer, octal
  // number, or float.
  case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9
    return this.readNumber(false)

  // Quotes produce strings.
  case 34: case 39: // '"', "'"
    return this.readString(code)

  // Operators are parsed inline in tiny state machines. '=' (61) is
  // often referred to. `finishOp` simply skips the amount of
  // characters it is given as second argument, and returns a token
  // of the type given by its first argument.

  case 47: // '/'
    return this.readToken_slash()

  case 37: case 42: // '%*'
    return this.readToken_mult_modulo_exp(code)

  case 124: case 38: // '|&'
    return this.readToken_pipe_amp(code)

  case 94: // '^'
    return this.readToken_caret()

  case 43: case 45: // '+-'
    return this.readToken_plus_min(code)

  case 60: case 62: // '<>'
    return this.readToken_lt_gt(code)

  case 61: case 33: // '=!'
    return this.readToken_eq_excl(code)

  case 63: // '?'
    return this.readToken_question()

  case 126: // '~'
    return this.finishOp(types.prefix, 1)

  case 35: // '#'
    return this.readToken_numberSign()
  }

  this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
};

pp$9.finishOp = function(type, size) {
  var str = this.input.slice(this.pos, this.pos + size);
  this.pos += size;
  return this.finishToken(type, str)
};

pp$9.readRegexp = function() {
  var escaped, inClass, start = this.pos;
  for (;;) {
    if (this.pos >= this.input.length) { this.raise(start, "Unterminated regular expression"); }
    var ch = this.input.charAt(this.pos);
    if (lineBreak.test(ch)) { this.raise(start, "Unterminated regular expression"); }
    if (!escaped) {
      if (ch === "[") { inClass = true; }
      else if (ch === "]" && inClass) { inClass = false; }
      else if (ch === "/" && !inClass) { break }
      escaped = ch === "\\";
    } else { escaped = false; }
    ++this.pos;
  }
  var pattern = this.input.slice(start, this.pos);
  ++this.pos;
  var flagsStart = this.pos;
  var flags = this.readWord1();
  if (this.containsEsc) { this.unexpected(flagsStart); }

  // Validate pattern
  var state = this.regexpState || (this.regexpState = new RegExpValidationState(this));
  state.reset(start, pattern, flags);
  this.validateRegExpFlags(state);
  this.validateRegExpPattern(state);

  // Create Literal#value property value.
  var value = null;
  try {
    value = new RegExp(pattern, flags);
  } catch (e) {
    // ESTree requires null if it failed to instantiate RegExp object.
    // https://github.com/estree/estree/blob/a27003adf4fd7bfad44de9cef372a2eacd527b1c/es5.md#regexpliteral
  }

  return this.finishToken(types.regexp, {pattern: pattern, flags: flags, value: value})
};

// Read an integer in the given radix. Return null if zero digits
// were read, the integer value otherwise. When `len` is given, this
// will return `null` unless the integer has exactly `len` digits.

pp$9.readInt = function(radix, len, maybeLegacyOctalNumericLiteral) {
  // `len` is used for character escape sequences. In that case, disallow separators.
  var allowSeparators = this.options.ecmaVersion >= 12 && len === undefined;

  // `maybeLegacyOctalNumericLiteral` is true if it doesn't have prefix (0x,0o,0b)
  // and isn't fraction part nor exponent part. In that case, if the first digit
  // is zero then disallow separators.
  var isLegacyOctalNumericLiteral = maybeLegacyOctalNumericLiteral && this.input.charCodeAt(this.pos) === 48;

  var start = this.pos, total = 0, lastCode = 0;
  for (var i = 0, e = len == null ? Infinity : len; i < e; ++i, ++this.pos) {
    var code = this.input.charCodeAt(this.pos), val = (void 0);

    if (allowSeparators && code === 95) {
      if (isLegacyOctalNumericLiteral) { this.raiseRecoverable(this.pos, "Numeric separator is not allowed in legacy octal numeric literals"); }
      if (lastCode === 95) { this.raiseRecoverable(this.pos, "Numeric separator must be exactly one underscore"); }
      if (i === 0) { this.raiseRecoverable(this.pos, "Numeric separator is not allowed at the first of digits"); }
      lastCode = code;
      continue
    }

    if (code >= 97) { val = code - 97 + 10; } // a
    else if (code >= 65) { val = code - 65 + 10; } // A
    else if (code >= 48 && code <= 57) { val = code - 48; } // 0-9
    else { val = Infinity; }
    if (val >= radix) { break }
    lastCode = code;
    total = total * radix + val;
  }

  if (allowSeparators && lastCode === 95) { this.raiseRecoverable(this.pos - 1, "Numeric separator is not allowed at the last of digits"); }
  if (this.pos === start || len != null && this.pos - start !== len) { return null }

  return total
};

function stringToNumber(str, isLegacyOctalNumericLiteral) {
  if (isLegacyOctalNumericLiteral) {
    return parseInt(str, 8)
  }

  // `parseFloat(value)` stops parsing at the first numeric separator then returns a wrong value.
  return parseFloat(str.replace(/_/g, ""))
}

function stringToBigInt(str) {
  if (typeof BigInt !== "function") {
    return null
  }

  // `BigInt(value)` throws syntax error if the string contains numeric separators.
  return BigInt(str.replace(/_/g, ""))
}

pp$9.readRadixNumber = function(radix) {
  var start = this.pos;
  this.pos += 2; // 0x
  var val = this.readInt(radix);
  if (val == null) { this.raise(this.start + 2, "Expected number in radix " + radix); }
  if (this.options.ecmaVersion >= 11 && this.input.charCodeAt(this.pos) === 110) {
    val = stringToBigInt(this.input.slice(start, this.pos));
    ++this.pos;
  } else if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
  return this.finishToken(types.num, val)
};

// Read an integer, octal integer, or floating-point number.

pp$9.readNumber = function(startsWithDot) {
  var start = this.pos;
  if (!startsWithDot && this.readInt(10, undefined, true) === null) { this.raise(start, "Invalid number"); }
  var octal = this.pos - start >= 2 && this.input.charCodeAt(start) === 48;
  if (octal && this.strict) { this.raise(start, "Invalid number"); }
  var next = this.input.charCodeAt(this.pos);
  if (!octal && !startsWithDot && this.options.ecmaVersion >= 11 && next === 110) {
    var val$1 = stringToBigInt(this.input.slice(start, this.pos));
    ++this.pos;
    if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
    return this.finishToken(types.num, val$1)
  }
  if (octal && /[89]/.test(this.input.slice(start, this.pos))) { octal = false; }
  if (next === 46 && !octal) { // '.'
    ++this.pos;
    this.readInt(10);
    next = this.input.charCodeAt(this.pos);
  }
  if ((next === 69 || next === 101) && !octal) { // 'eE'
    next = this.input.charCodeAt(++this.pos);
    if (next === 43 || next === 45) { ++this.pos; } // '+-'
    if (this.readInt(10) === null) { this.raise(start, "Invalid number"); }
  }
  if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }

  var val = stringToNumber(this.input.slice(start, this.pos), octal);
  return this.finishToken(types.num, val)
};

// Read a string value, interpreting backslash-escapes.

pp$9.readCodePoint = function() {
  var ch = this.input.charCodeAt(this.pos), code;

  if (ch === 123) { // '{'
    if (this.options.ecmaVersion < 6) { this.unexpected(); }
    var codePos = ++this.pos;
    code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
    ++this.pos;
    if (code > 0x10FFFF) { this.invalidStringToken(codePos, "Code point out of bounds"); }
  } else {
    code = this.readHexChar(4);
  }
  return code
};

function codePointToString$1(code) {
  // UTF-16 Decoding
  if (code <= 0xFFFF) { return String.fromCharCode(code) }
  code -= 0x10000;
  return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
}

pp$9.readString = function(quote) {
  var out = "", chunkStart = ++this.pos;
  for (;;) {
    if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated string constant"); }
    var ch = this.input.charCodeAt(this.pos);
    if (ch === quote) { break }
    if (ch === 92) { // '\'
      out += this.input.slice(chunkStart, this.pos);
      out += this.readEscapedChar(false);
      chunkStart = this.pos;
    } else if (ch === 0x2028 || ch === 0x2029) {
      if (this.options.ecmaVersion < 10) { this.raise(this.start, "Unterminated string constant"); }
      ++this.pos;
      if (this.options.locations) {
        this.curLine++;
        this.lineStart = this.pos;
      }
    } else {
      if (isNewLine(ch)) { this.raise(this.start, "Unterminated string constant"); }
      ++this.pos;
    }
  }
  out += this.input.slice(chunkStart, this.pos++);
  return this.finishToken(types.string, out)
};

// Reads template string tokens.

var INVALID_TEMPLATE_ESCAPE_ERROR = {};

pp$9.tryReadTemplateToken = function() {
  this.inTemplateElement = true;
  try {
    this.readTmplToken();
  } catch (err) {
    if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {
      this.readInvalidTemplateToken();
    } else {
      throw err
    }
  }

  this.inTemplateElement = false;
};

pp$9.invalidStringToken = function(position, message) {
  if (this.inTemplateElement && this.options.ecmaVersion >= 9) {
    throw INVALID_TEMPLATE_ESCAPE_ERROR
  } else {
    this.raise(position, message);
  }
};

pp$9.readTmplToken = function() {
  var out = "", chunkStart = this.pos;
  for (;;) {
    if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated template"); }
    var ch = this.input.charCodeAt(this.pos);
    if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { // '`', '${'
      if (this.pos === this.start && (this.type === types.template || this.type === types.invalidTemplate)) {
        if (ch === 36) {
          this.pos += 2;
          return this.finishToken(types.dollarBraceL)
        } else {
          ++this.pos;
          return this.finishToken(types.backQuote)
        }
      }
      out += this.input.slice(chunkStart, this.pos);
      return this.finishToken(types.template, out)
    }
    if (ch === 92) { // '\'
      out += this.input.slice(chunkStart, this.pos);
      out += this.readEscapedChar(true);
      chunkStart = this.pos;
    } else if (isNewLine(ch)) {
      out += this.input.slice(chunkStart, this.pos);
      ++this.pos;
      switch (ch) {
      case 13:
        if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; }
      case 10:
        out += "\n";
        break
      default:
        out += String.fromCharCode(ch);
        break
      }
      if (this.options.locations) {
        ++this.curLine;
        this.lineStart = this.pos;
      }
      chunkStart = this.pos;
    } else {
      ++this.pos;
    }
  }
};

// Reads a template token to search for the end, without validating any escape sequences
pp$9.readInvalidTemplateToken = function() {
  for (; this.pos < this.input.length; this.pos++) {
    switch (this.input[this.pos]) {
    case "\\":
      ++this.pos;
      break

    case "$":
      if (this.input[this.pos + 1] !== "{") {
        break
      }
    // falls through

    case "`":
      return this.finishToken(types.invalidTemplate, this.input.slice(this.start, this.pos))

    // no default
    }
  }
  this.raise(this.start, "Unterminated template");
};

// Used to read escaped characters

pp$9.readEscapedChar = function(inTemplate) {
  var ch = this.input.charCodeAt(++this.pos);
  ++this.pos;
  switch (ch) {
  case 110: return "\n" // 'n' -> '\n'
  case 114: return "\r" // 'r' -> '\r'
  case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
  case 117: return codePointToString$1(this.readCodePoint()) // 'u'
  case 116: return "\t" // 't' -> '\t'
  case 98: return "\b" // 'b' -> '\b'
  case 118: return "\u000b" // 'v' -> '\u000b'
  case 102: return "\f" // 'f' -> '\f'
  case 13: if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; } // '\r\n'
  case 10: // ' \n'
    if (this.options.locations) { this.lineStart = this.pos; ++this.curLine; }
    return ""
  case 56:
  case 57:
    if (this.strict) {
      this.invalidStringToken(
        this.pos - 1,
        "Invalid escape sequence"
      );
    }
    if (inTemplate) {
      var codePos = this.pos - 1;

      this.invalidStringToken(
        codePos,
        "Invalid escape sequence in template string"
      );

      return null
    }
  default:
    if (ch >= 48 && ch <= 55) {
      var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];
      var octal = parseInt(octalStr, 8);
      if (octal > 255) {
        octalStr = octalStr.slice(0, -1);
        octal = parseInt(octalStr, 8);
      }
      this.pos += octalStr.length - 1;
      ch = this.input.charCodeAt(this.pos);
      if ((octalStr !== "0" || ch === 56 || ch === 57) && (this.strict || inTemplate)) {
        this.invalidStringToken(
          this.pos - 1 - octalStr.length,
          inTemplate
            ? "Octal literal in template string"
            : "Octal literal in strict mode"
        );
      }
      return String.fromCharCode(octal)
    }
    if (isNewLine(ch)) {
      // Unicode new line characters after \ get removed from output in both
      // template literals and strings
      return ""
    }
    return String.fromCharCode(ch)
  }
};

// Used to read character escape sequences ('\x', '\u', '\U').

pp$9.readHexChar = function(len) {
  var codePos = this.pos;
  var n = this.readInt(16, len);
  if (n === null) { this.invalidStringToken(codePos, "Bad character escape sequence"); }
  return n
};

// Read an identifier, and return it as a string. Sets `this.containsEsc`
// to whether the word contained a '\u' escape.
//
// Incrementally adds only escaped chars, adding other chunks as-is
// as a micro-optimization.

pp$9.readWord1 = function() {
  this.containsEsc = false;
  var word = "", first = true, chunkStart = this.pos;
  var astral = this.options.ecmaVersion >= 6;
  while (this.pos < this.input.length) {
    var ch = this.fullCharCodeAtPos();
    if (isIdentifierChar(ch, astral)) {
      this.pos += ch <= 0xffff ? 1 : 2;
    } else if (ch === 92) { // "\"
      this.containsEsc = true;
      word += this.input.slice(chunkStart, this.pos);
      var escStart = this.pos;
      if (this.input.charCodeAt(++this.pos) !== 117) // "u"
        { this.invalidStringToken(this.pos, "Expecting Unicode escape sequence \\uXXXX"); }
      ++this.pos;
      var esc = this.readCodePoint();
      if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
        { this.invalidStringToken(escStart, "Invalid Unicode escape"); }
      word += codePointToString$1(esc);
      chunkStart = this.pos;
    } else {
      break
    }
    first = false;
  }
  return word + this.input.slice(chunkStart, this.pos)
};

// Read an identifier or keyword token. Will check for reserved
// words when necessary.

pp$9.readWord = function() {
  var word = this.readWord1();
  var type = types.name;
  if (this.keywords.test(word)) {
    type = keywords$1[word];
  }
  return this.finishToken(type, word)
};

// Acorn is a tiny, fast JavaScript parser written in JavaScript.

var version = "8.5.0";

Parser.acorn = {
  Parser: Parser,
  version: version,
  defaultOptions: defaultOptions,
  Position: Position,
  SourceLocation: SourceLocation,
  getLineInfo: getLineInfo,
  Node: Node,
  TokenType: TokenType,
  tokTypes: types,
  keywordTypes: keywords$1,
  TokContext: TokContext,
  tokContexts: types$1,
  isIdentifierChar: isIdentifierChar,
  isIdentifierStart: isIdentifierStart,
  Token: Token,
  isNewLine: isNewLine,
  lineBreak: lineBreak,
  lineBreakG: lineBreakG,
  nonASCIIwhitespace: nonASCIIwhitespace
};

// The main exported interface (under `self.acorn` when in the
// browser) is a `parse` function that takes a code string and
// returns an abstract syntax tree as specified by [Mozilla parser
// API][api].
//
// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API

function parse$c(input, options) {
  return Parser.parse(input, options)
}

// This function tries to parse a single expression at a given
// offset in a string. Useful for parsing mixed-language formats
// that embed JavaScript expressions.

function parseExpressionAt(input, pos, options) {
  return Parser.parseExpressionAt(input, pos, options)
}

// Acorn is organized as a tokenizer and a recursive-descent parser.
// The `tokenizer` export provides an interface to the tokenizer.

function tokenizer(input, options) {
  return Parser.tokenizer(input, options)
}

var acorn$1 = {
	__proto__: null,
	Node: Node,
	Parser: Parser,
	Position: Position,
	SourceLocation: SourceLocation,
	TokContext: TokContext,
	Token: Token,
	TokenType: TokenType,
	defaultOptions: defaultOptions,
	getLineInfo: getLineInfo,
	isIdentifierChar: isIdentifierChar,
	isIdentifierStart: isIdentifierStart,
	isNewLine: isNewLine,
	keywordTypes: keywords$1,
	lineBreak: lineBreak,
	lineBreakG: lineBreakG,
	nonASCIIwhitespace: nonASCIIwhitespace,
	parse: parse$c,
	parseExpressionAt: parseExpressionAt,
	tokContexts: types$1,
	tokTypes: types,
	tokenizer: tokenizer,
	version: version
};

var acorn = {exports: {}};

(function (module, exports) {
(function (global, factory) {
  factory(exports) ;
}(commonjsGlobal, (function (exports) {
  // Reserved word lists for various dialects of the language

  var reservedWords = {
    3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile",
    5: "class enum extends super const export import",
    6: "enum",
    strict: "implements interface let package private protected public static yield",
    strictBind: "eval arguments"
  };

  // And the keywords

  var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";

  var keywords = {
    5: ecma5AndLessKeywords,
    "5module": ecma5AndLessKeywords + " export import",
    6: ecma5AndLessKeywords + " const class extends export import super"
  };

  var keywordRelationalOperator = /^in(stanceof)?$/;

  // ## Character categories

  // Big ugly regular expressions that match characters in the
  // whitespace, identifier, and identifier-start categories. These
  // are only applied when a character is found to actually have a
  // code point above 128.
  // Generated by `bin/generate-identifier-regex.js`.
  var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u08a0-\u08b4\u08b6-\u08c7\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d04-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e86-\u0e8a\u0e8c-\u0ea3\u0ea5\u0ea7-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5\u1cf6\u1cfa\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31bf\u31f0-\u31ff\u3400-\u4dbf\u4e00-\u9ffc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7bf\ua7c2-\ua7ca\ua7f5-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab69\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc";
  var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d3-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d81-\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1abf\u1ac0\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf4\u1cf7-\u1cf9\u1dc0-\u1df9\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua82c\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f";

  var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
  var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");

  nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;

  // These are a run-length and offset encoded representation of the
  // >0xffff code points that are a valid part of identifiers. The
  // offset starts at 0x10000, and each pair of numbers represents an
  // offset to the next range, and then a size of the range. They were
  // generated by bin/generate-identifier-regex.js

  // eslint-disable-next-line comma-spacing
  var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,14,29,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,28,43,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,14,35,349,41,7,1,79,28,11,0,9,21,107,20,28,22,13,52,76,44,33,24,27,35,30,0,3,0,9,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,21,2,31,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,14,0,72,26,230,43,117,63,32,7,3,0,3,7,2,1,2,23,16,0,2,0,95,7,3,38,17,0,2,0,29,0,11,39,8,0,22,0,12,45,20,0,35,56,264,8,2,36,18,0,50,29,113,6,2,1,2,37,22,0,26,5,2,1,2,31,15,0,328,18,190,0,80,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,689,63,129,74,6,0,67,12,65,1,2,0,29,6135,9,1237,43,8,8952,286,50,2,18,3,9,395,2309,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,2357,44,11,6,17,0,370,43,1301,196,60,67,8,0,1205,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42717,35,4148,12,221,3,5761,15,7472,3104,541,1507,4938];

  // eslint-disable-next-line comma-spacing
  var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,574,3,9,9,370,1,154,10,176,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,6,1,45,0,13,2,49,13,9,3,2,11,83,11,7,0,161,11,6,9,7,3,56,1,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,5,0,82,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,243,14,166,9,71,5,2,1,3,3,2,0,2,1,13,9,120,6,3,6,4,0,29,9,41,6,2,3,9,0,10,10,47,15,406,7,2,7,17,9,57,21,2,13,123,5,4,0,2,1,2,6,2,0,9,9,49,4,2,1,2,4,9,9,330,3,19306,9,135,4,60,6,26,9,1014,0,2,54,8,3,82,0,12,1,19628,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,262,6,10,9,419,13,1495,6,110,6,6,9,4759,9,787719,239];

  // This has a complexity linear to the value of the code. The
  // assumption is that looking up astral identifier characters is
  // rare.
  function isInAstralSet(code, set) {
    var pos = 0x10000;
    for (var i = 0; i < set.length; i += 2) {
      pos += set[i];
      if (pos > code) { return false }
      pos += set[i + 1];
      if (pos >= code) { return true }
    }
  }

  // Test whether a given character code starts an identifier.

  function isIdentifierStart(code, astral) {
    if (code < 65) { return code === 36 }
    if (code < 91) { return true }
    if (code < 97) { return code === 95 }
    if (code < 123) { return true }
    if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) }
    if (astral === false) { return false }
    return isInAstralSet(code, astralIdentifierStartCodes)
  }

  // Test whether a given character is part of an identifier.

  function isIdentifierChar(code, astral) {
    if (code < 48) { return code === 36 }
    if (code < 58) { return true }
    if (code < 65) { return false }
    if (code < 91) { return true }
    if (code < 97) { return code === 95 }
    if (code < 123) { return true }
    if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) }
    if (astral === false) { return false }
    return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)
  }

  // ## Token types

  // The assignment of fine-grained, information-carrying type objects
  // allows the tokenizer to store the information it has about a
  // token in a way that is very cheap for the parser to look up.

  // All token type variables start with an underscore, to make them
  // easy to recognize.

  // The `beforeExpr` property is used to disambiguate between regular
  // expressions and divisions. It is set on all token types that can
  // be followed by an expression (thus, a slash after them would be a
  // regular expression).
  //
  // The `startsExpr` property is used to check if the token ends a
  // `yield` expression. It is set on all token types that either can
  // directly start an expression (like a quotation mark) or can
  // continue an expression (like the body of a string).
  //
  // `isLoop` marks a keyword as starting a loop, which is important
  // to know when parsing a label, in order to allow or disallow
  // continue jumps to that label.

  var TokenType = function TokenType(label, conf) {
    if ( conf === void 0 ) conf = {};

    this.label = label;
    this.keyword = conf.keyword;
    this.beforeExpr = !!conf.beforeExpr;
    this.startsExpr = !!conf.startsExpr;
    this.isLoop = !!conf.isLoop;
    this.isAssign = !!conf.isAssign;
    this.prefix = !!conf.prefix;
    this.postfix = !!conf.postfix;
    this.binop = conf.binop || null;
    this.updateContext = null;
  };

  function binop(name, prec) {
    return new TokenType(name, {beforeExpr: true, binop: prec})
  }
  var beforeExpr = {beforeExpr: true}, startsExpr = {startsExpr: true};

  // Map keyword names to token types.

  var keywords$1 = {};

  // Succinct definitions of keyword token types
  function kw(name, options) {
    if ( options === void 0 ) options = {};

    options.keyword = name;
    return keywords$1[name] = new TokenType(name, options)
  }

  var types = {
    num: new TokenType("num", startsExpr),
    regexp: new TokenType("regexp", startsExpr),
    string: new TokenType("string", startsExpr),
    name: new TokenType("name", startsExpr),
    privateId: new TokenType("privateId", startsExpr),
    eof: new TokenType("eof"),

    // Punctuation token types.
    bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
    bracketR: new TokenType("]"),
    braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
    braceR: new TokenType("}"),
    parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
    parenR: new TokenType(")"),
    comma: new TokenType(",", beforeExpr),
    semi: new TokenType(";", beforeExpr),
    colon: new TokenType(":", beforeExpr),
    dot: new TokenType("."),
    question: new TokenType("?", beforeExpr),
    questionDot: new TokenType("?."),
    arrow: new TokenType("=>", beforeExpr),
    template: new TokenType("template"),
    invalidTemplate: new TokenType("invalidTemplate"),
    ellipsis: new TokenType("...", beforeExpr),
    backQuote: new TokenType("`", startsExpr),
    dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),

    // Operators. These carry several kinds of properties to help the
    // parser use them properly (the presence of these properties is
    // what categorizes them as operators).
    //
    // `binop`, when present, specifies that this operator is a binary
    // operator, and will refer to its precedence.
    //
    // `prefix` and `postfix` mark the operator as a prefix or postfix
    // unary operator.
    //
    // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
    // binary operators with a very low precedence, that should result
    // in AssignmentExpression nodes.

    eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
    assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
    incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
    prefix: new TokenType("!/~", {beforeExpr: true, prefix: true, startsExpr: true}),
    logicalOR: binop("||", 1),
    logicalAND: binop("&&", 2),
    bitwiseOR: binop("|", 3),
    bitwiseXOR: binop("^", 4),
    bitwiseAND: binop("&", 5),
    equality: binop("==/!=/===/!==", 6),
    relational: binop("</>/<=/>=", 7),
    bitShift: binop("<</>>/>>>", 8),
    plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
    modulo: binop("%", 10),
    star: binop("*", 10),
    slash: binop("/", 10),
    starstar: new TokenType("**", {beforeExpr: true}),
    coalesce: binop("??", 1),

    // Keyword token types.
    _break: kw("break"),
    _case: kw("case", beforeExpr),
    _catch: kw("catch"),
    _continue: kw("continue"),
    _debugger: kw("debugger"),
    _default: kw("default", beforeExpr),
    _do: kw("do", {isLoop: true, beforeExpr: true}),
    _else: kw("else", beforeExpr),
    _finally: kw("finally"),
    _for: kw("for", {isLoop: true}),
    _function: kw("function", startsExpr),
    _if: kw("if"),
    _return: kw("return", beforeExpr),
    _switch: kw("switch"),
    _throw: kw("throw", beforeExpr),
    _try: kw("try"),
    _var: kw("var"),
    _const: kw("const"),
    _while: kw("while", {isLoop: true}),
    _with: kw("with"),
    _new: kw("new", {beforeExpr: true, startsExpr: true}),
    _this: kw("this", startsExpr),
    _super: kw("super", startsExpr),
    _class: kw("class", startsExpr),
    _extends: kw("extends", beforeExpr),
    _export: kw("export"),
    _import: kw("import", startsExpr),
    _null: kw("null", startsExpr),
    _true: kw("true", startsExpr),
    _false: kw("false", startsExpr),
    _in: kw("in", {beforeExpr: true, binop: 7}),
    _instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
    _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
    _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
    _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
  };

  // Matches a whole line break (where CRLF is considered a single
  // line break). Used to count lines.

  var lineBreak = /\r\n?|\n|\u2028|\u2029/;
  var lineBreakG = new RegExp(lineBreak.source, "g");

  function isNewLine(code) {
    return code === 10 || code === 13 || code === 0x2028 || code === 0x2029
  }

  var nonASCIIwhitespace = /[\u1680\u2000-\u200a\u202f\u205f\u3000\ufeff]/;

  var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g;

  var ref = Object.prototype;
  var hasOwnProperty = ref.hasOwnProperty;
  var toString = ref.toString;

  // Checks if an object has a property.

  function has(obj, propName) {
    return hasOwnProperty.call(obj, propName)
  }

  var isArray = Array.isArray || (function (obj) { return (
    toString.call(obj) === "[object Array]"
  ); });

  function wordsRegexp(words) {
    return new RegExp("^(?:" + words.replace(/ /g, "|") + ")$")
  }

  // These are used when `options.locations` is on, for the
  // `startLoc` and `endLoc` properties.

  var Position = function Position(line, col) {
    this.line = line;
    this.column = col;
  };

  Position.prototype.offset = function offset (n) {
    return new Position(this.line, this.column + n)
  };

  var SourceLocation = function SourceLocation(p, start, end) {
    this.start = start;
    this.end = end;
    if (p.sourceFile !== null) { this.source = p.sourceFile; }
  };

  // The `getLineInfo` function is mostly useful when the
  // `locations` option is off (for performance reasons) and you
  // want to find the line/column position for a given character
  // offset. `input` should be the code string that the offset refers
  // into.

  function getLineInfo(input, offset) {
    for (var line = 1, cur = 0;;) {
      lineBreakG.lastIndex = cur;
      var match = lineBreakG.exec(input);
      if (match && match.index < offset) {
        ++line;
        cur = match.index + match[0].length;
      } else {
        return new Position(line, offset - cur)
      }
    }
  }

  // A second argument must be given to configure the parser process.
  // These options are recognized (only `ecmaVersion` is required):

  var defaultOptions = {
    // `ecmaVersion` indicates the ECMAScript version to parse. Must be
    // either 3, 5, 6 (or 2015), 7 (2016), 8 (2017), 9 (2018), 10
    // (2019), 11 (2020), 12 (2021), 13 (2022), or `"latest"` (the
    // latest version the library supports). This influences support
    // for strict mode, the set of reserved words, and support for
    // new syntax features.
    ecmaVersion: null,
    // `sourceType` indicates the mode the code should be parsed in.
    // Can be either `"script"` or `"module"`. This influences global
    // strict mode and parsing of `import` and `export` declarations.
    sourceType: "script",
    // `onInsertedSemicolon` can be a callback that will be called
    // when a semicolon is automatically inserted. It will be passed
    // the position of the comma as an offset, and if `locations` is
    // enabled, it is given the location as a `{line, column}` object
    // as second argument.
    onInsertedSemicolon: null,
    // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
    // trailing commas.
    onTrailingComma: null,
    // By default, reserved words are only enforced if ecmaVersion >= 5.
    // Set `allowReserved` to a boolean value to explicitly turn this on
    // an off. When this option has the value "never", reserved words
    // and keywords can also not be used as property names.
    allowReserved: null,
    // When enabled, a return at the top level is not considered an
    // error.
    allowReturnOutsideFunction: false,
    // When enabled, import/export statements are not constrained to
    // appearing at the top of the program, and an import.meta expression
    // in a script isn't considered an error.
    allowImportExportEverywhere: false,
    // By default, await identifiers are allowed to appear at the top-level scope only if ecmaVersion >= 2022.
    // When enabled, await identifiers are allowed to appear at the top-level scope,
    // but they are still not allowed in non-async functions.
    allowAwaitOutsideFunction: null,
    // When enabled, super identifiers are not constrained to
    // appearing in methods and do not raise an error when they appear elsewhere.
    allowSuperOutsideMethod: null,
    // When enabled, hashbang directive in the beginning of file
    // is allowed and treated as a line comment.
    allowHashBang: false,
    // When `locations` is on, `loc` properties holding objects with
    // `start` and `end` properties in `{line, column}` form (with
    // line being 1-based and column 0-based) will be attached to the
    // nodes.
    locations: false,
    // A function can be passed as `onToken` option, which will
    // cause Acorn to call that function with object in the same
    // format as tokens returned from `tokenizer().getToken()`. Note
    // that you are not allowed to call the parser from the
    // callback—that will corrupt its internal state.
    onToken: null,
    // A function can be passed as `onComment` option, which will
    // cause Acorn to call that function with `(block, text, start,
    // end)` parameters whenever a comment is skipped. `block` is a
    // boolean indicating whether this is a block (`/* */`) comment,
    // `text` is the content of the comment, and `start` and `end` are
    // character offsets that denote the start and end of the comment.
    // When the `locations` option is on, two more parameters are
    // passed, the full `{line, column}` locations of the start and
    // end of the comments. Note that you are not allowed to call the
    // parser from the callback—that will corrupt its internal state.
    onComment: null,
    // Nodes have their start and end characters offsets recorded in
    // `start` and `end` properties (directly on the node, rather than
    // the `loc` object, which holds line/column data. To also add a
    // [semi-standardized][range] `range` property holding a `[start,
    // end]` array with the same numbers, set the `ranges` option to
    // `true`.
    //
    // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
    ranges: false,
    // It is possible to parse multiple files into a single AST by
    // passing the tree produced by parsing the first file as
    // `program` option in subsequent parses. This will add the
    // toplevel forms of the parsed file to the `Program` (top) node
    // of an existing parse tree.
    program: null,
    // When `locations` is on, you can pass this to record the source
    // file in every node's `loc` object.
    sourceFile: null,
    // This value, if given, is stored in every node, whether
    // `locations` is on or off.
    directSourceFile: null,
    // When enabled, parenthesized expressions are represented by
    // (non-standard) ParenthesizedExpression nodes
    preserveParens: false
  };

  // Interpret and default an options object

  var warnedAboutEcmaVersion = false;

  function getOptions(opts) {
    var options = {};

    for (var opt in defaultOptions)
      { options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]; }

    if (options.ecmaVersion === "latest") {
      options.ecmaVersion = 1e8;
    } else if (options.ecmaVersion == null) {
      if (!warnedAboutEcmaVersion && typeof console === "object" && console.warn) {
        warnedAboutEcmaVersion = true;
        console.warn("Since Acorn 8.0.0, options.ecmaVersion is required.\nDefaulting to 2020, but this will stop working in the future.");
      }
      options.ecmaVersion = 11;
    } else if (options.ecmaVersion >= 2015) {
      options.ecmaVersion -= 2009;
    }

    if (options.allowReserved == null)
      { options.allowReserved = options.ecmaVersion < 5; }

    if (isArray(options.onToken)) {
      var tokens = options.onToken;
      options.onToken = function (token) { return tokens.push(token); };
    }
    if (isArray(options.onComment))
      { options.onComment = pushComment(options, options.onComment); }

    return options
  }

  function pushComment(options, array) {
    return function(block, text, start, end, startLoc, endLoc) {
      var comment = {
        type: block ? "Block" : "Line",
        value: text,
        start: start,
        end: end
      };
      if (options.locations)
        { comment.loc = new SourceLocation(this, startLoc, endLoc); }
      if (options.ranges)
        { comment.range = [start, end]; }
      array.push(comment);
    }
  }

  // Each scope gets a bitset that may contain these flags
  var
      SCOPE_TOP = 1,
      SCOPE_FUNCTION = 2,
      SCOPE_ASYNC = 4,
      SCOPE_GENERATOR = 8,
      SCOPE_ARROW = 16,
      SCOPE_SIMPLE_CATCH = 32,
      SCOPE_SUPER = 64,
      SCOPE_DIRECT_SUPER = 128,
      SCOPE_CLASS_STATIC_BLOCK = 256,
      SCOPE_VAR = SCOPE_TOP | SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK;

  function functionFlags(async, generator) {
    return SCOPE_FUNCTION | (async ? SCOPE_ASYNC : 0) | (generator ? SCOPE_GENERATOR : 0)
  }

  // Used in checkLVal* and declareName to determine the type of a binding
  var
      BIND_NONE = 0, // Not a binding
      BIND_VAR = 1, // Var-style binding
      BIND_LEXICAL = 2, // Let- or const-style binding
      BIND_FUNCTION = 3, // Function declaration
      BIND_SIMPLE_CATCH = 4, // Simple (identifier pattern) catch binding
      BIND_OUTSIDE = 5; // Special case for function names as bound inside the function

  var Parser = function Parser(options, input, startPos) {
    this.options = options = getOptions(options);
    this.sourceFile = options.sourceFile;
    this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
    var reserved = "";
    if (options.allowReserved !== true) {
      reserved = reservedWords[options.ecmaVersion >= 6 ? 6 : options.ecmaVersion === 5 ? 5 : 3];
      if (options.sourceType === "module") { reserved += " await"; }
    }
    this.reservedWords = wordsRegexp(reserved);
    var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict;
    this.reservedWordsStrict = wordsRegexp(reservedStrict);
    this.reservedWordsStrictBind = wordsRegexp(reservedStrict + " " + reservedWords.strictBind);
    this.input = String(input);

    // Used to signal to callers of `readWord1` whether the word
    // contained any escape sequences. This is needed because words with
    // escape sequences must not be interpreted as keywords.
    this.containsEsc = false;

    // Set up token state

    // The current position of the tokenizer in the input.
    if (startPos) {
      this.pos = startPos;
      this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
      this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
    } else {
      this.pos = this.lineStart = 0;
      this.curLine = 1;
    }

    // Properties of the current token:
    // Its type
    this.type = types.eof;
    // For tokens that include more information than their type, the value
    this.value = null;
    // Its start and end offset
    this.start = this.end = this.pos;
    // And, if locations are used, the {line, column} object
    // corresponding to those offsets
    this.startLoc = this.endLoc = this.curPosition();

    // Position information for the previous token
    this.lastTokEndLoc = this.lastTokStartLoc = null;
    this.lastTokStart = this.lastTokEnd = this.pos;

    // The context stack is used to superficially track syntactic
    // context to predict whether a regular expression is allowed in a
    // given position.
    this.context = this.initialContext();
    this.exprAllowed = true;

    // Figure out if it's a module code.
    this.inModule = options.sourceType === "module";
    this.strict = this.inModule || this.strictDirective(this.pos);

    // Used to signify the start of a potential arrow function
    this.potentialArrowAt = -1;
    this.potentialArrowInForAwait = false;

    // Positions to delayed-check that yield/await does not exist in default parameters.
    this.yieldPos = this.awaitPos = this.awaitIdentPos = 0;
    // Labels in scope.
    this.labels = [];
    // Thus-far undefined exports.
    this.undefinedExports = Object.create(null);

    // If enabled, skip leading hashbang line.
    if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
      { this.skipLineComment(2); }

    // Scope tracking for duplicate variable names (see scope.js)
    this.scopeStack = [];
    this.enterScope(SCOPE_TOP);

    // For RegExp validation
    this.regexpState = null;

    // The stack of private names.
    // Each element has two properties: 'declared' and 'used'.
    // When it exited from the outermost class definition, all used private names must be declared.
    this.privateNameStack = [];
  };

  var prototypeAccessors = { inFunction: { configurable: true },inGenerator: { configurable: true },inAsync: { configurable: true },canAwait: { configurable: true },allowSuper: { configurable: true },allowDirectSuper: { configurable: true },treatFunctionsAsVar: { configurable: true },allowNewDotTarget: { configurable: true },inClassStaticBlock: { configurable: true } };

  Parser.prototype.parse = function parse () {
    var node = this.options.program || this.startNode();
    this.nextToken();
    return this.parseTopLevel(node)
  };

  prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
  prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 && !this.currentVarScope().inClassFieldInit };
  prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 && !this.currentVarScope().inClassFieldInit };
  prototypeAccessors.canAwait.get = function () {
    for (var i = this.scopeStack.length - 1; i >= 0; i--) {
      var scope = this.scopeStack[i];
      if (scope.inClassFieldInit || scope.flags & SCOPE_CLASS_STATIC_BLOCK) { return false }
      if (scope.flags & SCOPE_FUNCTION) { return (scope.flags & SCOPE_ASYNC) > 0 }
    }
    return (this.inModule && this.options.ecmaVersion >= 13) || this.options.allowAwaitOutsideFunction
  };
  prototypeAccessors.allowSuper.get = function () {
    var ref = this.currentThisScope();
      var flags = ref.flags;
      var inClassFieldInit = ref.inClassFieldInit;
    return (flags & SCOPE_SUPER) > 0 || inClassFieldInit || this.options.allowSuperOutsideMethod
  };
  prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
  prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) };
  prototypeAccessors.allowNewDotTarget.get = function () {
    var ref = this.currentThisScope();
      var flags = ref.flags;
      var inClassFieldInit = ref.inClassFieldInit;
    return (flags & (SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK)) > 0 || inClassFieldInit
  };
  prototypeAccessors.inClassStaticBlock.get = function () {
    return (this.currentVarScope().flags & SCOPE_CLASS_STATIC_BLOCK) > 0
  };

  Parser.extend = function extend () {
      var plugins = [], len = arguments.length;
      while ( len-- ) plugins[ len ] = arguments[ len ];

    var cls = this;
    for (var i = 0; i < plugins.length; i++) { cls = plugins[i](cls); }
    return cls
  };

  Parser.parse = function parse (input, options) {
    return new this(options, input).parse()
  };

  Parser.parseExpressionAt = function parseExpressionAt (input, pos, options) {
    var parser = new this(options, input, pos);
    parser.nextToken();
    return parser.parseExpression()
  };

  Parser.tokenizer = function tokenizer (input, options) {
    return new this(options, input)
  };

  Object.defineProperties( Parser.prototype, prototypeAccessors );

  var pp = Parser.prototype;

  // ## Parser utilities

  var literal = /^(?:'((?:\\.|[^'\\])*?)'|"((?:\\.|[^"\\])*?)")/;
  pp.strictDirective = function(start) {
    for (;;) {
      // Try to find string literal.
      skipWhiteSpace.lastIndex = start;
      start += skipWhiteSpace.exec(this.input)[0].length;
      var match = literal.exec(this.input.slice(start));
      if (!match) { return false }
      if ((match[1] || match[2]) === "use strict") {
        skipWhiteSpace.lastIndex = start + match[0].length;
        var spaceAfter = skipWhiteSpace.exec(this.input), end = spaceAfter.index + spaceAfter[0].length;
        var next = this.input.charAt(end);
        return next === ";" || next === "}" ||
          (lineBreak.test(spaceAfter[0]) &&
           !(/[(`.[+\-/*%<>=,?^&]/.test(next) || next === "!" && this.input.charAt(end + 1) === "="))
      }
      start += match[0].length;

      // Skip semicolon, if any.
      skipWhiteSpace.lastIndex = start;
      start += skipWhiteSpace.exec(this.input)[0].length;
      if (this.input[start] === ";")
        { start++; }
    }
  };

  // Predicate that tests whether the next token is of the given
  // type, and if yes, consumes it as a side effect.

  pp.eat = function(type) {
    if (this.type === type) {
      this.next();
      return true
    } else {
      return false
    }
  };

  // Tests whether parsed token is a contextual keyword.

  pp.isContextual = function(name) {
    return this.type === types.name && this.value === name && !this.containsEsc
  };

  // Consumes contextual keyword if possible.

  pp.eatContextual = function(name) {
    if (!this.isContextual(name)) { return false }
    this.next();
    return true
  };

  // Asserts that following token is given contextual keyword.

  pp.expectContextual = function(name) {
    if (!this.eatContextual(name)) { this.unexpected(); }
  };

  // Test whether a semicolon can be inserted at the current position.

  pp.canInsertSemicolon = function() {
    return this.type === types.eof ||
      this.type === types.braceR ||
      lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
  };

  pp.insertSemicolon = function() {
    if (this.canInsertSemicolon()) {
      if (this.options.onInsertedSemicolon)
        { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
      return true
    }
  };

  // Consume a semicolon, or, failing that, see if we are allowed to
  // pretend that there is a semicolon at this position.

  pp.semicolon = function() {
    if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
  };

  pp.afterTrailingComma = function(tokType, notNext) {
    if (this.type === tokType) {
      if (this.options.onTrailingComma)
        { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
      if (!notNext)
        { this.next(); }
      return true
    }
  };

  // Expect a token of a given type. If found, consume it, otherwise,
  // raise an unexpected token error.

  pp.expect = function(type) {
    this.eat(type) || this.unexpected();
  };

  // Raise an unexpected token error.

  pp.unexpected = function(pos) {
    this.raise(pos != null ? pos : this.start, "Unexpected token");
  };

  function DestructuringErrors() {
    this.shorthandAssign =
    this.trailingComma =
    this.parenthesizedAssign =
    this.parenthesizedBind =
    this.doubleProto =
      -1;
  }

  pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
    if (!refDestructuringErrors) { return }
    if (refDestructuringErrors.trailingComma > -1)
      { this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); }
    var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind;
    if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
  };

  pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
    if (!refDestructuringErrors) { return false }
    var shorthandAssign = refDestructuringErrors.shorthandAssign;
    var doubleProto = refDestructuringErrors.doubleProto;
    if (!andThrow) { return shorthandAssign >= 0 || doubleProto >= 0 }
    if (shorthandAssign >= 0)
      { this.raise(shorthandAssign, "Shorthand property assignments are valid only in destructuring patterns"); }
    if (doubleProto >= 0)
      { this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property"); }
  };

  pp.checkYieldAwaitInDefaultParams = function() {
    if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
      { this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
    if (this.awaitPos)
      { this.raise(this.awaitPos, "Await expression cannot be a default value"); }
  };

  pp.isSimpleAssignTarget = function(expr) {
    if (expr.type === "ParenthesizedExpression")
      { return this.isSimpleAssignTarget(expr.expression) }
    return expr.type === "Identifier" || expr.type === "MemberExpression"
  };

  var pp$1 = Parser.prototype;

  // ### Statement parsing

  // Parse a program. Initializes the parser, reads any number of
  // statements, and wraps them in a Program node.  Optionally takes a
  // `program` argument.  If present, the statements will be appended
  // to its body instead of creating a new node.

  pp$1.parseTopLevel = function(node) {
    var exports = Object.create(null);
    if (!node.body) { node.body = []; }
    while (this.type !== types.eof) {
      var stmt = this.parseStatement(null, true, exports);
      node.body.push(stmt);
    }
    if (this.inModule)
      { for (var i = 0, list = Object.keys(this.undefinedExports); i < list.length; i += 1)
        {
          var name = list[i];

          this.raiseRecoverable(this.undefinedExports[name].start, ("Export '" + name + "' is not defined"));
        } }
    this.adaptDirectivePrologue(node.body);
    this.next();
    node.sourceType = this.options.sourceType;
    return this.finishNode(node, "Program")
  };

  var loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"};

  pp$1.isLet = function(context) {
    if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false }
    skipWhiteSpace.lastIndex = this.pos;
    var skip = skipWhiteSpace.exec(this.input);
    var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
    // For ambiguous cases, determine if a LexicalDeclaration (or only a
    // Statement) is allowed here. If context is not empty then only a Statement
    // is allowed. However, `let [` is an explicit negative lookahead for
    // ExpressionStatement, so special-case it first.
    if (nextCh === 91 || nextCh === 92 || nextCh > 0xd7ff && nextCh < 0xdc00) { return true } // '[', '/', astral
    if (context) { return false }

    if (nextCh === 123) { return true } // '{'
    if (isIdentifierStart(nextCh, true)) {
      var pos = next + 1;
      while (isIdentifierChar(nextCh = this.input.charCodeAt(pos), true)) { ++pos; }
      if (nextCh === 92 || nextCh > 0xd7ff && nextCh < 0xdc00) { return true }
      var ident = this.input.slice(next, pos);
      if (!keywordRelationalOperator.test(ident)) { return true }
    }
    return false
  };

  // check 'async [no LineTerminator here] function'
  // - 'async /*foo*/ function' is OK.
  // - 'async /*\n*/ function' is invalid.
  pp$1.isAsyncFunction = function() {
    if (this.options.ecmaVersion < 8 || !this.isContextual("async"))
      { return false }

    skipWhiteSpace.lastIndex = this.pos;
    var skip = skipWhiteSpace.exec(this.input);
    var next = this.pos + skip[0].length, after;
    return !lineBreak.test(this.input.slice(this.pos, next)) &&
      this.input.slice(next, next + 8) === "function" &&
      (next + 8 === this.input.length ||
       !(isIdentifierChar(after = this.input.charCodeAt(next + 8)) || after > 0xd7ff && after < 0xdc00))
  };

  // Parse a single statement.
  //
  // If expecting a statement and finding a slash operator, parse a
  // regular expression literal. This is to handle cases like
  // `if (foo) /blah/.exec(foo)`, where looking at the previous token
  // does not help.

  pp$1.parseStatement = function(context, topLevel, exports) {
    var starttype = this.type, node = this.startNode(), kind;

    if (this.isLet(context)) {
      starttype = types._var;
      kind = "let";
    }

    // Most types of statements are recognized by the keyword they
    // start with. Many are trivial to parse, some require a bit of
    // complexity.

    switch (starttype) {
    case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
    case types._debugger: return this.parseDebuggerStatement(node)
    case types._do: return this.parseDoStatement(node)
    case types._for: return this.parseForStatement(node)
    case types._function:
      // Function as sole body of either an if statement or a labeled statement
      // works, but not when it is part of a labeled statement that is the sole
      // body of an if statement.
      if ((context && (this.strict || context !== "if" && context !== "label")) && this.options.ecmaVersion >= 6) { this.unexpected(); }
      return this.parseFunctionStatement(node, false, !context)
    case types._class:
      if (context) { this.unexpected(); }
      return this.parseClass(node, true)
    case types._if: return this.parseIfStatement(node)
    case types._return: return this.parseReturnStatement(node)
    case types._switch: return this.parseSwitchStatement(node)
    case types._throw: return this.parseThrowStatement(node)
    case types._try: return this.parseTryStatement(node)
    case types._const: case types._var:
      kind = kind || this.value;
      if (context && kind !== "var") { this.unexpected(); }
      return this.parseVarStatement(node, kind)
    case types._while: return this.parseWhileStatement(node)
    case types._with: return this.parseWithStatement(node)
    case types.braceL: return this.parseBlock(true, node)
    case types.semi: return this.parseEmptyStatement(node)
    case types._export:
    case types._import:
      if (this.options.ecmaVersion > 10 && starttype === types._import) {
        skipWhiteSpace.lastIndex = this.pos;
        var skip = skipWhiteSpace.exec(this.input);
        var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
        if (nextCh === 40 || nextCh === 46) // '(' or '.'
          { return this.parseExpressionStatement(node, this.parseExpression()) }
      }

      if (!this.options.allowImportExportEverywhere) {
        if (!topLevel)
          { this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
        if (!this.inModule)
          { this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); }
      }
      return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports)

      // If the statement does not start with a statement keyword or a
      // brace, it's an ExpressionStatement or LabeledStatement. We
      // simply start parsing an expression, and afterwards, if the
      // next token is a colon and the expression was a simple
      // Identifier node, we switch to interpreting it as a label.
    default:
      if (this.isAsyncFunction()) {
        if (context) { this.unexpected(); }
        this.next();
        return this.parseFunctionStatement(node, true, !context)
      }

      var maybeName = this.value, expr = this.parseExpression();
      if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
        { return this.parseLabeledStatement(node, maybeName, expr, context) }
      else { return this.parseExpressionStatement(node, expr) }
    }
  };

  pp$1.parseBreakContinueStatement = function(node, keyword) {
    var isBreak = keyword === "break";
    this.next();
    if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
    else if (this.type !== types.name) { this.unexpected(); }
    else {
      node.label = this.parseIdent();
      this.semicolon();
    }

    // Verify that there is an actual destination to break or
    // continue to.
    var i = 0;
    for (; i < this.labels.length; ++i) {
      var lab = this.labels[i];
      if (node.label == null || lab.name === node.label.name) {
        if (lab.kind != null && (isBreak || lab.kind === "loop")) { break }
        if (node.label && isBreak) { break }
      }
    }
    if (i === this.labels.length) { this.raise(node.start, "Unsyntactic " + keyword); }
    return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
  };

  pp$1.parseDebuggerStatement = function(node) {
    this.next();
    this.semicolon();
    return this.finishNode(node, "DebuggerStatement")
  };

  pp$1.parseDoStatement = function(node) {
    this.next();
    this.labels.push(loopLabel);
    node.body = this.parseStatement("do");
    this.labels.pop();
    this.expect(types._while);
    node.test = this.parseParenExpression();
    if (this.options.ecmaVersion >= 6)
      { this.eat(types.semi); }
    else
      { this.semicolon(); }
    return this.finishNode(node, "DoWhileStatement")
  };

  // Disambiguating between a `for` and a `for`/`in` or `for`/`of`
  // loop is non-trivial. Basically, we have to parse the init `var`
  // statement or expression, disallowing the `in` operator (see
  // the second parameter to `parseExpression`), and then check
  // whether the next token is `in` or `of`. When there is no init
  // part (semicolon immediately after the opening parenthesis), it
  // is a regular `for` loop.

  pp$1.parseForStatement = function(node) {
    this.next();
    var awaitAt = (this.options.ecmaVersion >= 9 && this.canAwait && this.eatContextual("await")) ? this.lastTokStart : -1;
    this.labels.push(loopLabel);
    this.enterScope(0);
    this.expect(types.parenL);
    if (this.type === types.semi) {
      if (awaitAt > -1) { this.unexpected(awaitAt); }
      return this.parseFor(node, null)
    }
    var isLet = this.isLet();
    if (this.type === types._var || this.type === types._const || isLet) {
      var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
      this.next();
      this.parseVar(init$1, true, kind);
      this.finishNode(init$1, "VariableDeclaration");
      if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1) {
        if (this.options.ecmaVersion >= 9) {
          if (this.type === types._in) {
            if (awaitAt > -1) { this.unexpected(awaitAt); }
          } else { node.await = awaitAt > -1; }
        }
        return this.parseForIn(node, init$1)
      }
      if (awaitAt > -1) { this.unexpected(awaitAt); }
      return this.parseFor(node, init$1)
    }
    var startsWithLet = this.isContextual("let"), isForOf = false;
    var refDestructuringErrors = new DestructuringErrors;
    var init = this.parseExpression(awaitAt > -1 ? "await" : true, refDestructuringErrors);
    if (this.type === types._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
      if (this.options.ecmaVersion >= 9) {
        if (this.type === types._in) {
          if (awaitAt > -1) { this.unexpected(awaitAt); }
        } else { node.await = awaitAt > -1; }
      }
      if (startsWithLet && isForOf) { this.raise(init.start, "The left-hand side of a for-of loop may not start with 'let'."); }
      this.toAssignable(init, false, refDestructuringErrors);
      this.checkLValPattern(init);
      return this.parseForIn(node, init)
    } else {
      this.checkExpressionErrors(refDestructuringErrors, true);
    }
    if (awaitAt > -1) { this.unexpected(awaitAt); }
    return this.parseFor(node, init)
  };

  pp$1.parseFunctionStatement = function(node, isAsync, declarationPosition) {
    this.next();
    return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), false, isAsync)
  };

  pp$1.parseIfStatement = function(node) {
    this.next();
    node.test = this.parseParenExpression();
    // allow function declarations in branches, but only in non-strict mode
    node.consequent = this.parseStatement("if");
    node.alternate = this.eat(types._else) ? this.parseStatement("if") : null;
    return this.finishNode(node, "IfStatement")
  };

  pp$1.parseReturnStatement = function(node) {
    if (!this.inFunction && !this.options.allowReturnOutsideFunction)
      { this.raise(this.start, "'return' outside of function"); }
    this.next();

    // In `return` (and `break`/`continue`), the keywords with
    // optional arguments, we eagerly look for a semicolon or the
    // possibility to insert one.

    if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; }
    else { node.argument = this.parseExpression(); this.semicolon(); }
    return this.finishNode(node, "ReturnStatement")
  };

  pp$1.parseSwitchStatement = function(node) {
    this.next();
    node.discriminant = this.parseParenExpression();
    node.cases = [];
    this.expect(types.braceL);
    this.labels.push(switchLabel);
    this.enterScope(0);

    // Statements under must be grouped (by label) in SwitchCase
    // nodes. `cur` is used to keep the node that we are currently
    // adding statements to.

    var cur;
    for (var sawDefault = false; this.type !== types.braceR;) {
      if (this.type === types._case || this.type === types._default) {
        var isCase = this.type === types._case;
        if (cur) { this.finishNode(cur, "SwitchCase"); }
        node.cases.push(cur = this.startNode());
        cur.consequent = [];
        this.next();
        if (isCase) {
          cur.test = this.parseExpression();
        } else {
          if (sawDefault) { this.raiseRecoverable(this.lastTokStart, "Multiple default clauses"); }
          sawDefault = true;
          cur.test = null;
        }
        this.expect(types.colon);
      } else {
        if (!cur) { this.unexpected(); }
        cur.consequent.push(this.parseStatement(null));
      }
    }
    this.exitScope();
    if (cur) { this.finishNode(cur, "SwitchCase"); }
    this.next(); // Closing brace
    this.labels.pop();
    return this.finishNode(node, "SwitchStatement")
  };

  pp$1.parseThrowStatement = function(node) {
    this.next();
    if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
      { this.raise(this.lastTokEnd, "Illegal newline after throw"); }
    node.argument = this.parseExpression();
    this.semicolon();
    return this.finishNode(node, "ThrowStatement")
  };

  // Reused empty array added for node fields that are always empty.

  var empty = [];

  pp$1.parseTryStatement = function(node) {
    this.next();
    node.block = this.parseBlock();
    node.handler = null;
    if (this.type === types._catch) {
      var clause = this.startNode();
      this.next();
      if (this.eat(types.parenL)) {
        clause.param = this.parseBindingAtom();
        var simple = clause.param.type === "Identifier";
        this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0);
        this.checkLValPattern(clause.param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL);
        this.expect(types.parenR);
      } else {
        if (this.options.ecmaVersion < 10) { this.unexpected(); }
        clause.param = null;
        this.enterScope(0);
      }
      clause.body = this.parseBlock(false);
      this.exitScope();
      node.handler = this.finishNode(clause, "CatchClause");
    }
    node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
    if (!node.handler && !node.finalizer)
      { this.raise(node.start, "Missing catch or finally clause"); }
    return this.finishNode(node, "TryStatement")
  };

  pp$1.parseVarStatement = function(node, kind) {
    this.next();
    this.parseVar(node, false, kind);
    this.semicolon();
    return this.finishNode(node, "VariableDeclaration")
  };

  pp$1.parseWhileStatement = function(node) {
    this.next();
    node.test = this.parseParenExpression();
    this.labels.push(loopLabel);
    node.body = this.parseStatement("while");
    this.labels.pop();
    return this.finishNode(node, "WhileStatement")
  };

  pp$1.parseWithStatement = function(node) {
    if (this.strict) { this.raise(this.start, "'with' in strict mode"); }
    this.next();
    node.object = this.parseParenExpression();
    node.body = this.parseStatement("with");
    return this.finishNode(node, "WithStatement")
  };

  pp$1.parseEmptyStatement = function(node) {
    this.next();
    return this.finishNode(node, "EmptyStatement")
  };

  pp$1.parseLabeledStatement = function(node, maybeName, expr, context) {
    for (var i$1 = 0, list = this.labels; i$1 < list.length; i$1 += 1)
      {
      var label = list[i$1];

      if (label.name === maybeName)
        { this.raise(expr.start, "Label '" + maybeName + "' is already declared");
    } }
    var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null;
    for (var i = this.labels.length - 1; i >= 0; i--) {
      var label$1 = this.labels[i];
      if (label$1.statementStart === node.start) {
        // Update information about previous labels on this node
        label$1.statementStart = this.start;
        label$1.kind = kind;
      } else { break }
    }
    this.labels.push({name: maybeName, kind: kind, statementStart: this.start});
    node.body = this.parseStatement(context ? context.indexOf("label") === -1 ? context + "label" : context : "label");
    this.labels.pop();
    node.label = expr;
    return this.finishNode(node, "LabeledStatement")
  };

  pp$1.parseExpressionStatement = function(node, expr) {
    node.expression = expr;
    this.semicolon();
    return this.finishNode(node, "ExpressionStatement")
  };

  // Parse a semicolon-enclosed block of statements, handling `"use
  // strict"` declarations when `allowStrict` is true (used for
  // function bodies).

  pp$1.parseBlock = function(createNewLexicalScope, node, exitStrict) {
    if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;
    if ( node === void 0 ) node = this.startNode();

    node.body = [];
    this.expect(types.braceL);
    if (createNewLexicalScope) { this.enterScope(0); }
    while (this.type !== types.braceR) {
      var stmt = this.parseStatement(null);
      node.body.push(stmt);
    }
    if (exitStrict) { this.strict = false; }
    this.next();
    if (createNewLexicalScope) { this.exitScope(); }
    return this.finishNode(node, "BlockStatement")
  };

  // Parse a regular `for` loop. The disambiguation code in
  // `parseStatement` will already have parsed the init statement or
  // expression.

  pp$1.parseFor = function(node, init) {
    node.init = init;
    this.expect(types.semi);
    node.test = this.type === types.semi ? null : this.parseExpression();
    this.expect(types.semi);
    node.update = this.type === types.parenR ? null : this.parseExpression();
    this.expect(types.parenR);
    node.body = this.parseStatement("for");
    this.exitScope();
    this.labels.pop();
    return this.finishNode(node, "ForStatement")
  };

  // Parse a `for`/`in` and `for`/`of` loop, which are almost
  // same from parser's perspective.

  pp$1.parseForIn = function(node, init) {
    var isForIn = this.type === types._in;
    this.next();

    if (
      init.type === "VariableDeclaration" &&
      init.declarations[0].init != null &&
      (
        !isForIn ||
        this.options.ecmaVersion < 8 ||
        this.strict ||
        init.kind !== "var" ||
        init.declarations[0].id.type !== "Identifier"
      )
    ) {
      this.raise(
        init.start,
        ((isForIn ? "for-in" : "for-of") + " loop variable declaration may not have an initializer")
      );
    }
    node.left = init;
    node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign();
    this.expect(types.parenR);
    node.body = this.parseStatement("for");
    this.exitScope();
    this.labels.pop();
    return this.finishNode(node, isForIn ? "ForInStatement" : "ForOfStatement")
  };

  // Parse a list of variable declarations.

  pp$1.parseVar = function(node, isFor, kind) {
    node.declarations = [];
    node.kind = kind;
    for (;;) {
      var decl = this.startNode();
      this.parseVarId(decl, kind);
      if (this.eat(types.eq)) {
        decl.init = this.parseMaybeAssign(isFor);
      } else if (kind === "const" && !(this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
        this.unexpected();
      } else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types._in || this.isContextual("of")))) {
        this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
      } else {
        decl.init = null;
      }
      node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
      if (!this.eat(types.comma)) { break }
    }
    return node
  };

  pp$1.parseVarId = function(decl, kind) {
    decl.id = this.parseBindingAtom();
    this.checkLValPattern(decl.id, kind === "var" ? BIND_VAR : BIND_LEXICAL, false);
  };

  var FUNC_STATEMENT = 1, FUNC_HANGING_STATEMENT = 2, FUNC_NULLABLE_ID = 4;

  // Parse a function declaration or literal (depending on the
  // `statement & FUNC_STATEMENT`).

  // Remove `allowExpressionBody` for 7.0.0, as it is only called with false
  pp$1.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) {
    this.initFunction(node);
    if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) {
      if (this.type === types.star && (statement & FUNC_HANGING_STATEMENT))
        { this.unexpected(); }
      node.generator = this.eat(types.star);
    }
    if (this.options.ecmaVersion >= 8)
      { node.async = !!isAsync; }

    if (statement & FUNC_STATEMENT) {
      node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types.name ? null : this.parseIdent();
      if (node.id && !(statement & FUNC_HANGING_STATEMENT))
        // If it is a regular function declaration in sloppy mode, then it is
        // subject to Annex B semantics (BIND_FUNCTION). Otherwise, the binding
        // mode depends on properties of the current scope (see
        // treatFunctionsAsVar).
        { this.checkLValSimple(node.id, (this.strict || node.generator || node.async) ? this.treatFunctionsAsVar ? BIND_VAR : BIND_LEXICAL : BIND_FUNCTION); }
    }

    var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
    this.yieldPos = 0;
    this.awaitPos = 0;
    this.awaitIdentPos = 0;
    this.enterScope(functionFlags(node.async, node.generator));

    if (!(statement & FUNC_STATEMENT))
      { node.id = this.type === types.name ? this.parseIdent() : null; }

    this.parseFunctionParams(node);
    this.parseFunctionBody(node, allowExpressionBody, false, forInit);

    this.yieldPos = oldYieldPos;
    this.awaitPos = oldAwaitPos;
    this.awaitIdentPos = oldAwaitIdentPos;
    return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression")
  };

  pp$1.parseFunctionParams = function(node) {
    this.expect(types.parenL);
    node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
    this.checkYieldAwaitInDefaultParams();
  };

  // Parse a class declaration or literal (depending on the
  // `isStatement` parameter).

  pp$1.parseClass = function(node, isStatement) {
    this.next();

    // ecma-262 14.6 Class Definitions
    // A class definition is always strict mode code.
    var oldStrict = this.strict;
    this.strict = true;

    this.parseClassId(node, isStatement);
    this.parseClassSuper(node);
    var privateNameMap = this.enterClassBody();
    var classBody = this.startNode();
    var hadConstructor = false;
    classBody.body = [];
    this.expect(types.braceL);
    while (this.type !== types.braceR) {
      var element = this.parseClassElement(node.superClass !== null);
      if (element) {
        classBody.body.push(element);
        if (element.type === "MethodDefinition" && element.kind === "constructor") {
          if (hadConstructor) { this.raise(element.start, "Duplicate constructor in the same class"); }
          hadConstructor = true;
        } else if (element.key && element.key.type === "PrivateIdentifier" && isPrivateNameConflicted(privateNameMap, element)) {
          this.raiseRecoverable(element.key.start, ("Identifier '#" + (element.key.name) + "' has already been declared"));
        }
      }
    }
    this.strict = oldStrict;
    this.next();
    node.body = this.finishNode(classBody, "ClassBody");
    this.exitClassBody();
    return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
  };

  pp$1.parseClassElement = function(constructorAllowsSuper) {
    if (this.eat(types.semi)) { return null }

    var ecmaVersion = this.options.ecmaVersion;
    var node = this.startNode();
    var keyName = "";
    var isGenerator = false;
    var isAsync = false;
    var kind = "method";
    var isStatic = false;

    if (this.eatContextual("static")) {
      // Parse static init block
      if (ecmaVersion >= 13 && this.eat(types.braceL)) {
        this.parseClassStaticBlock(node);
        return node
      }
      if (this.isClassElementNameStart() || this.type === types.star) {
        isStatic = true;
      } else {
        keyName = "static";
      }
    }
    node.static = isStatic;
    if (!keyName && ecmaVersion >= 8 && this.eatContextual("async")) {
      if ((this.isClassElementNameStart() || this.type === types.star) && !this.canInsertSemicolon()) {
        isAsync = true;
      } else {
        keyName = "async";
      }
    }
    if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(types.star)) {
      isGenerator = true;
    }
    if (!keyName && !isAsync && !isGenerator) {
      var lastValue = this.value;
      if (this.eatContextual("get") || this.eatContextual("set")) {
        if (this.isClassElementNameStart()) {
          kind = lastValue;
        } else {
          keyName = lastValue;
        }
      }
    }

    // Parse element name
    if (keyName) {
      // 'async', 'get', 'set', or 'static' were not a keyword contextually.
      // The last token is any of those. Make it the element name.
      node.computed = false;
      node.key = this.startNodeAt(this.lastTokStart, this.lastTokStartLoc);
      node.key.name = keyName;
      this.finishNode(node.key, "Identifier");
    } else {
      this.parseClassElementName(node);
    }

    // Parse element value
    if (ecmaVersion < 13 || this.type === types.parenL || kind !== "method" || isGenerator || isAsync) {
      var isConstructor = !node.static && checkKeyName(node, "constructor");
      var allowsDirectSuper = isConstructor && constructorAllowsSuper;
      // Couldn't move this check into the 'parseClassMethod' method for backward compatibility.
      if (isConstructor && kind !== "method") { this.raise(node.key.start, "Constructor can't have get/set modifier"); }
      node.kind = isConstructor ? "constructor" : kind;
      this.parseClassMethod(node, isGenerator, isAsync, allowsDirectSuper);
    } else {
      this.parseClassField(node);
    }

    return node
  };

  pp$1.isClassElementNameStart = function() {
    return (
      this.type === types.name ||
      this.type === types.privateId ||
      this.type === types.num ||
      this.type === types.string ||
      this.type === types.bracketL ||
      this.type.keyword
    )
  };

  pp$1.parseClassElementName = function(element) {
    if (this.type === types.privateId) {
      if (this.value === "constructor") {
        this.raise(this.start, "Classes can't have an element named '#constructor'");
      }
      element.computed = false;
      element.key = this.parsePrivateIdent();
    } else {
      this.parsePropertyName(element);
    }
  };

  pp$1.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) {
    // Check key and flags
    var key = method.key;
    if (method.kind === "constructor") {
      if (isGenerator) { this.raise(key.start, "Constructor can't be a generator"); }
      if (isAsync) { this.raise(key.start, "Constructor can't be an async method"); }
    } else if (method.static && checkKeyName(method, "prototype")) {
      this.raise(key.start, "Classes may not have a static property named prototype");
    }

    // Parse value
    var value = method.value = this.parseMethod(isGenerator, isAsync, allowsDirectSuper);

    // Check value
    if (method.kind === "get" && value.params.length !== 0)
      { this.raiseRecoverable(value.start, "getter should have no params"); }
    if (method.kind === "set" && value.params.length !== 1)
      { this.raiseRecoverable(value.start, "setter should have exactly one param"); }
    if (method.kind === "set" && value.params[0].type === "RestElement")
      { this.raiseRecoverable(value.params[0].start, "Setter cannot use rest params"); }

    return this.finishNode(method, "MethodDefinition")
  };

  pp$1.parseClassField = function(field) {
    if (checkKeyName(field, "constructor")) {
      this.raise(field.key.start, "Classes can't have a field named 'constructor'");
    } else if (field.static && checkKeyName(field, "prototype")) {
      this.raise(field.key.start, "Classes can't have a static field named 'prototype'");
    }

    if (this.eat(types.eq)) {
      // To raise SyntaxError if 'arguments' exists in the initializer.
      var scope = this.currentThisScope();
      var inClassFieldInit = scope.inClassFieldInit;
      scope.inClassFieldInit = true;
      field.value = this.parseMaybeAssign();
      scope.inClassFieldInit = inClassFieldInit;
    } else {
      field.value = null;
    }
    this.semicolon();

    return this.finishNode(field, "PropertyDefinition")
  };

  pp$1.parseClassStaticBlock = function(node) {
    node.body = [];

    var oldLabels = this.labels;
    this.labels = [];
    this.enterScope(SCOPE_CLASS_STATIC_BLOCK | SCOPE_SUPER);
    while (this.type !== types.braceR) {
      var stmt = this.parseStatement(null);
      node.body.push(stmt);
    }
    this.next();
    this.exitScope();
    this.labels = oldLabels;

    return this.finishNode(node, "StaticBlock")
  };

  pp$1.parseClassId = function(node, isStatement) {
    if (this.type === types.name) {
      node.id = this.parseIdent();
      if (isStatement)
        { this.checkLValSimple(node.id, BIND_LEXICAL, false); }
    } else {
      if (isStatement === true)
        { this.unexpected(); }
      node.id = null;
    }
  };

  pp$1.parseClassSuper = function(node) {
    node.superClass = this.eat(types._extends) ? this.parseExprSubscripts(false) : null;
  };

  pp$1.enterClassBody = function() {
    var element = {declared: Object.create(null), used: []};
    this.privateNameStack.push(element);
    return element.declared
  };

  pp$1.exitClassBody = function() {
    var ref = this.privateNameStack.pop();
    var declared = ref.declared;
    var used = ref.used;
    var len = this.privateNameStack.length;
    var parent = len === 0 ? null : this.privateNameStack[len - 1];
    for (var i = 0; i < used.length; ++i) {
      var id = used[i];
      if (!has(declared, id.name)) {
        if (parent) {
          parent.used.push(id);
        } else {
          this.raiseRecoverable(id.start, ("Private field '#" + (id.name) + "' must be declared in an enclosing class"));
        }
      }
    }
  };

  function isPrivateNameConflicted(privateNameMap, element) {
    var name = element.key.name;
    var curr = privateNameMap[name];

    var next = "true";
    if (element.type === "MethodDefinition" && (element.kind === "get" || element.kind === "set")) {
      next = (element.static ? "s" : "i") + element.kind;
    }

    // `class { get #a(){}; static set #a(_){} }` is also conflict.
    if (
      curr === "iget" && next === "iset" ||
      curr === "iset" && next === "iget" ||
      curr === "sget" && next === "sset" ||
      curr === "sset" && next === "sget"
    ) {
      privateNameMap[name] = "true";
      return false
    } else if (!curr) {
      privateNameMap[name] = next;
      return false
    } else {
      return true
    }
  }

  function checkKeyName(node, name) {
    var computed = node.computed;
    var key = node.key;
    return !computed && (
      key.type === "Identifier" && key.name === name ||
      key.type === "Literal" && key.value === name
    )
  }

  // Parses module export declaration.

  pp$1.parseExport = function(node, exports) {
    this.next();
    // export * from '...'
    if (this.eat(types.star)) {
      if (this.options.ecmaVersion >= 11) {
        if (this.eatContextual("as")) {
          node.exported = this.parseIdent(true);
          this.checkExport(exports, node.exported.name, this.lastTokStart);
        } else {
          node.exported = null;
        }
      }
      this.expectContextual("from");
      if (this.type !== types.string) { this.unexpected(); }
      node.source = this.parseExprAtom();
      this.semicolon();
      return this.finishNode(node, "ExportAllDeclaration")
    }
    if (this.eat(types._default)) { // export default ...
      this.checkExport(exports, "default", this.lastTokStart);
      var isAsync;
      if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
        var fNode = this.startNode();
        this.next();
        if (isAsync) { this.next(); }
        node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync);
      } else if (this.type === types._class) {
        var cNode = this.startNode();
        node.declaration = this.parseClass(cNode, "nullableID");
      } else {
        node.declaration = this.parseMaybeAssign();
        this.semicolon();
      }
      return this.finishNode(node, "ExportDefaultDeclaration")
    }
    // export var|const|let|function|class ...
    if (this.shouldParseExportStatement()) {
      node.declaration = this.parseStatement(null);
      if (node.declaration.type === "VariableDeclaration")
        { this.checkVariableExport(exports, node.declaration.declarations); }
      else
        { this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
      node.specifiers = [];
      node.source = null;
    } else { // export { x, y as z } [from '...']
      node.declaration = null;
      node.specifiers = this.parseExportSpecifiers(exports);
      if (this.eatContextual("from")) {
        if (this.type !== types.string) { this.unexpected(); }
        node.source = this.parseExprAtom();
      } else {
        for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
          // check for keywords used as local names
          var spec = list[i];

          this.checkUnreserved(spec.local);
          // check if export is defined
          this.checkLocalExport(spec.local);
        }

        node.source = null;
      }
      this.semicolon();
    }
    return this.finishNode(node, "ExportNamedDeclaration")
  };

  pp$1.checkExport = function(exports, name, pos) {
    if (!exports) { return }
    if (has(exports, name))
      { this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); }
    exports[name] = true;
  };

  pp$1.checkPatternExport = function(exports, pat) {
    var type = pat.type;
    if (type === "Identifier")
      { this.checkExport(exports, pat.name, pat.start); }
    else if (type === "ObjectPattern")
      { for (var i = 0, list = pat.properties; i < list.length; i += 1)
        {
          var prop = list[i];

          this.checkPatternExport(exports, prop);
        } }
    else if (type === "ArrayPattern")
      { for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) {
        var elt = list$1[i$1];

          if (elt) { this.checkPatternExport(exports, elt); }
      } }
    else if (type === "Property")
      { this.checkPatternExport(exports, pat.value); }
    else if (type === "AssignmentPattern")
      { this.checkPatternExport(exports, pat.left); }
    else if (type === "RestElement")
      { this.checkPatternExport(exports, pat.argument); }
    else if (type === "ParenthesizedExpression")
      { this.checkPatternExport(exports, pat.expression); }
  };

  pp$1.checkVariableExport = function(exports, decls) {
    if (!exports) { return }
    for (var i = 0, list = decls; i < list.length; i += 1)
      {
      var decl = list[i];

      this.checkPatternExport(exports, decl.id);
    }
  };

  pp$1.shouldParseExportStatement = function() {
    return this.type.keyword === "var" ||
      this.type.keyword === "const" ||
      this.type.keyword === "class" ||
      this.type.keyword === "function" ||
      this.isLet() ||
      this.isAsyncFunction()
  };

  // Parses a comma-separated list of module exports.

  pp$1.parseExportSpecifiers = function(exports) {
    var nodes = [], first = true;
    // export { x, y as z } [from '...']
    this.expect(types.braceL);
    while (!this.eat(types.braceR)) {
      if (!first) {
        this.expect(types.comma);
        if (this.afterTrailingComma(types.braceR)) { break }
      } else { first = false; }

      var node = this.startNode();
      node.local = this.parseIdent(true);
      node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
      this.checkExport(exports, node.exported.name, node.exported.start);
      nodes.push(this.finishNode(node, "ExportSpecifier"));
    }
    return nodes
  };

  // Parses import declaration.

  pp$1.parseImport = function(node) {
    this.next();
    // import '...'
    if (this.type === types.string) {
      node.specifiers = empty;
      node.source = this.parseExprAtom();
    } else {
      node.specifiers = this.parseImportSpecifiers();
      this.expectContextual("from");
      node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
    }
    this.semicolon();
    return this.finishNode(node, "ImportDeclaration")
  };

  // Parses a comma-separated list of module imports.

  pp$1.parseImportSpecifiers = function() {
    var nodes = [], first = true;
    if (this.type === types.name) {
      // import defaultObj, { x, y as z } from '...'
      var node = this.startNode();
      node.local = this.parseIdent();
      this.checkLValSimple(node.local, BIND_LEXICAL);
      nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
      if (!this.eat(types.comma)) { return nodes }
    }
    if (this.type === types.star) {
      var node$1 = this.startNode();
      this.next();
      this.expectContextual("as");
      node$1.local = this.parseIdent();
      this.checkLValSimple(node$1.local, BIND_LEXICAL);
      nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"));
      return nodes
    }
    this.expect(types.braceL);
    while (!this.eat(types.braceR)) {
      if (!first) {
        this.expect(types.comma);
        if (this.afterTrailingComma(types.braceR)) { break }
      } else { first = false; }

      var node$2 = this.startNode();
      node$2.imported = this.parseIdent(true);
      if (this.eatContextual("as")) {
        node$2.local = this.parseIdent();
      } else {
        this.checkUnreserved(node$2.imported);
        node$2.local = node$2.imported;
      }
      this.checkLValSimple(node$2.local, BIND_LEXICAL);
      nodes.push(this.finishNode(node$2, "ImportSpecifier"));
    }
    return nodes
  };

  // Set `ExpressionStatement#directive` property for directive prologues.
  pp$1.adaptDirectivePrologue = function(statements) {
    for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) {
      statements[i].directive = statements[i].expression.raw.slice(1, -1);
    }
  };
  pp$1.isDirectiveCandidate = function(statement) {
    return (
      statement.type === "ExpressionStatement" &&
      statement.expression.type === "Literal" &&
      typeof statement.expression.value === "string" &&
      // Reject parenthesized strings.
      (this.input[statement.start] === "\"" || this.input[statement.start] === "'")
    )
  };

  var pp$2 = Parser.prototype;

  // Convert existing expression atom to assignable pattern
  // if possible.

  pp$2.toAssignable = function(node, isBinding, refDestructuringErrors) {
    if (this.options.ecmaVersion >= 6 && node) {
      switch (node.type) {
      case "Identifier":
        if (this.inAsync && node.name === "await")
          { this.raise(node.start, "Cannot use 'await' as identifier inside an async function"); }
        break

      case "ObjectPattern":
      case "ArrayPattern":
      case "AssignmentPattern":
      case "RestElement":
        break

      case "ObjectExpression":
        node.type = "ObjectPattern";
        if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
        for (var i = 0, list = node.properties; i < list.length; i += 1) {
          var prop = list[i];

        this.toAssignable(prop, isBinding);
          // Early error:
          //   AssignmentRestProperty[Yield, Await] :
          //     `...` DestructuringAssignmentTarget[Yield, Await]
          //
          //   It is a Syntax Error if |DestructuringAssignmentTarget| is an |ArrayLiteral| or an |ObjectLiteral|.
          if (
            prop.type === "RestElement" &&
            (prop.argument.type === "ArrayPattern" || prop.argument.type === "ObjectPattern")
          ) {
            this.raise(prop.argument.start, "Unexpected token");
          }
        }
        break

      case "Property":
        // AssignmentProperty has type === "Property"
        if (node.kind !== "init") { this.raise(node.key.start, "Object pattern can't contain getter or setter"); }
        this.toAssignable(node.value, isBinding);
        break

      case "ArrayExpression":
        node.type = "ArrayPattern";
        if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
        this.toAssignableList(node.elements, isBinding);
        break

      case "SpreadElement":
        node.type = "RestElement";
        this.toAssignable(node.argument, isBinding);
        if (node.argument.type === "AssignmentPattern")
          { this.raise(node.argument.start, "Rest elements cannot have a default value"); }
        break

      case "AssignmentExpression":
        if (node.operator !== "=") { this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); }
        node.type = "AssignmentPattern";
        delete node.operator;
        this.toAssignable(node.left, isBinding);
        break

      case "ParenthesizedExpression":
        this.toAssignable(node.expression, isBinding, refDestructuringErrors);
        break

      case "ChainExpression":
        this.raiseRecoverable(node.start, "Optional chaining cannot appear in left-hand side");
        break

      case "MemberExpression":
        if (!isBinding) { break }

      default:
        this.raise(node.start, "Assigning to rvalue");
      }
    } else if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
    return node
  };

  // Convert list of expression atoms to binding list.

  pp$2.toAssignableList = function(exprList, isBinding) {
    var end = exprList.length;
    for (var i = 0; i < end; i++) {
      var elt = exprList[i];
      if (elt) { this.toAssignable(elt, isBinding); }
    }
    if (end) {
      var last = exprList[end - 1];
      if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
        { this.unexpected(last.argument.start); }
    }
    return exprList
  };

  // Parses spread element.

  pp$2.parseSpread = function(refDestructuringErrors) {
    var node = this.startNode();
    this.next();
    node.argument = this.parseMaybeAssign(false, refDestructuringErrors);
    return this.finishNode(node, "SpreadElement")
  };

  pp$2.parseRestBinding = function() {
    var node = this.startNode();
    this.next();

    // RestElement inside of a function parameter must be an identifier
    if (this.options.ecmaVersion === 6 && this.type !== types.name)
      { this.unexpected(); }

    node.argument = this.parseBindingAtom();

    return this.finishNode(node, "RestElement")
  };

  // Parses lvalue (assignable) atom.

  pp$2.parseBindingAtom = function() {
    if (this.options.ecmaVersion >= 6) {
      switch (this.type) {
      case types.bracketL:
        var node = this.startNode();
        this.next();
        node.elements = this.parseBindingList(types.bracketR, true, true);
        return this.finishNode(node, "ArrayPattern")

      case types.braceL:
        return this.parseObj(true)
      }
    }
    return this.parseIdent()
  };

  pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
    var elts = [], first = true;
    while (!this.eat(close)) {
      if (first) { first = false; }
      else { this.expect(types.comma); }
      if (allowEmpty && this.type === types.comma) {
        elts.push(null);
      } else if (allowTrailingComma && this.afterTrailingComma(close)) {
        break
      } else if (this.type === types.ellipsis) {
        var rest = this.parseRestBinding();
        this.parseBindingListItem(rest);
        elts.push(rest);
        if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
        this.expect(close);
        break
      } else {
        var elem = this.parseMaybeDefault(this.start, this.startLoc);
        this.parseBindingListItem(elem);
        elts.push(elem);
      }
    }
    return elts
  };

  pp$2.parseBindingListItem = function(param) {
    return param
  };

  // Parses assignment pattern around given atom if possible.

  pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
    left = left || this.parseBindingAtom();
    if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left }
    var node = this.startNodeAt(startPos, startLoc);
    node.left = left;
    node.right = this.parseMaybeAssign();
    return this.finishNode(node, "AssignmentPattern")
  };

  // The following three functions all verify that a node is an lvalue —
  // something that can be bound, or assigned to. In order to do so, they perform
  // a variety of checks:
  //
  // - Check that none of the bound/assigned-to identifiers are reserved words.
  // - Record name declarations for bindings in the appropriate scope.
  // - Check duplicate argument names, if checkClashes is set.
  //
  // If a complex binding pattern is encountered (e.g., object and array
  // destructuring), the entire pattern is recursively checked.
  //
  // There are three versions of checkLVal*() appropriate for different
  // circumstances:
  //
  // - checkLValSimple() shall be used if the syntactic construct supports
  //   nothing other than identifiers and member expressions. Parenthesized
  //   expressions are also correctly handled. This is generally appropriate for
  //   constructs for which the spec says
  //
  //   > It is a Syntax Error if AssignmentTargetType of [the production] is not
  //   > simple.
  //
  //   It is also appropriate for checking if an identifier is valid and not
  //   defined elsewhere, like import declarations or function/class identifiers.
  //
  //   Examples where this is used include:
  //     a += …;
  //     import a from '…';
  //   where a is the node to be checked.
  //
  // - checkLValPattern() shall be used if the syntactic construct supports
  //   anything checkLValSimple() supports, as well as object and array
  //   destructuring patterns. This is generally appropriate for constructs for
  //   which the spec says
  //
  //   > It is a Syntax Error if [the production] is neither an ObjectLiteral nor
  //   > an ArrayLiteral and AssignmentTargetType of [the production] is not
  //   > simple.
  //
  //   Examples where this is used include:
  //     (a = …);
  //     const a = …;
  //     try { … } catch (a) { … }
  //   where a is the node to be checked.
  //
  // - checkLValInnerPattern() shall be used if the syntactic construct supports
  //   anything checkLValPattern() supports, as well as default assignment
  //   patterns, rest elements, and other constructs that may appear within an
  //   object or array destructuring pattern.
  //
  //   As a special case, function parameters also use checkLValInnerPattern(),
  //   as they also support defaults and rest constructs.
  //
  // These functions deliberately support both assignment and binding constructs,
  // as the logic for both is exceedingly similar. If the node is the target of
  // an assignment, then bindingType should be set to BIND_NONE. Otherwise, it
  // should be set to the appropriate BIND_* constant, like BIND_VAR or
  // BIND_LEXICAL.
  //
  // If the function is called with a non-BIND_NONE bindingType, then
  // additionally a checkClashes object may be specified to allow checking for
  // duplicate argument names. checkClashes is ignored if the provided construct
  // is an assignment (i.e., bindingType is BIND_NONE).

  pp$2.checkLValSimple = function(expr, bindingType, checkClashes) {
    if ( bindingType === void 0 ) bindingType = BIND_NONE;

    var isBind = bindingType !== BIND_NONE;

    switch (expr.type) {
    case "Identifier":
      if (this.strict && this.reservedWordsStrictBind.test(expr.name))
        { this.raiseRecoverable(expr.start, (isBind ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); }
      if (isBind) {
        if (bindingType === BIND_LEXICAL && expr.name === "let")
          { this.raiseRecoverable(expr.start, "let is disallowed as a lexically bound name"); }
        if (checkClashes) {
          if (has(checkClashes, expr.name))
            { this.raiseRecoverable(expr.start, "Argument name clash"); }
          checkClashes[expr.name] = true;
        }
        if (bindingType !== BIND_OUTSIDE) { this.declareName(expr.name, bindingType, expr.start); }
      }
      break

    case "ChainExpression":
      this.raiseRecoverable(expr.start, "Optional chaining cannot appear in left-hand side");
      break

    case "MemberExpression":
      if (isBind) { this.raiseRecoverable(expr.start, "Binding member expression"); }
      break

    case "ParenthesizedExpression":
      if (isBind) { this.raiseRecoverable(expr.start, "Binding parenthesized expression"); }
      return this.checkLValSimple(expr.expression, bindingType, checkClashes)

    default:
      this.raise(expr.start, (isBind ? "Binding" : "Assigning to") + " rvalue");
    }
  };

  pp$2.checkLValPattern = function(expr, bindingType, checkClashes) {
    if ( bindingType === void 0 ) bindingType = BIND_NONE;

    switch (expr.type) {
    case "ObjectPattern":
      for (var i = 0, list = expr.properties; i < list.length; i += 1) {
        var prop = list[i];

      this.checkLValInnerPattern(prop, bindingType, checkClashes);
      }
      break

    case "ArrayPattern":
      for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) {
        var elem = list$1[i$1];

      if (elem) { this.checkLValInnerPattern(elem, bindingType, checkClashes); }
      }
      break

    default:
      this.checkLValSimple(expr, bindingType, checkClashes);
    }
  };

  pp$2.checkLValInnerPattern = function(expr, bindingType, checkClashes) {
    if ( bindingType === void 0 ) bindingType = BIND_NONE;

    switch (expr.type) {
    case "Property":
      // AssignmentProperty has type === "Property"
      this.checkLValInnerPattern(expr.value, bindingType, checkClashes);
      break

    case "AssignmentPattern":
      this.checkLValPattern(expr.left, bindingType, checkClashes);
      break

    case "RestElement":
      this.checkLValPattern(expr.argument, bindingType, checkClashes);
      break

    default:
      this.checkLValPattern(expr, bindingType, checkClashes);
    }
  };

  // The algorithm used to determine whether a regexp can appear at a

  var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) {
    this.token = token;
    this.isExpr = !!isExpr;
    this.preserveSpace = !!preserveSpace;
    this.override = override;
    this.generator = !!generator;
  };

  var types$1 = {
    b_stat: new TokContext("{", false),
    b_expr: new TokContext("{", true),
    b_tmpl: new TokContext("${", false),
    p_stat: new TokContext("(", false),
    p_expr: new TokContext("(", true),
    q_tmpl: new TokContext("`", true, true, function (p) { return p.tryReadTemplateToken(); }),
    f_stat: new TokContext("function", false),
    f_expr: new TokContext("function", true),
    f_expr_gen: new TokContext("function", true, false, null, true),
    f_gen: new TokContext("function", false, false, null, true)
  };

  var pp$3 = Parser.prototype;

  pp$3.initialContext = function() {
    return [types$1.b_stat]
  };

  pp$3.curContext = function() {
    return this.context[this.context.length - 1]
  };

  pp$3.braceIsBlock = function(prevType) {
    var parent = this.curContext();
    if (parent === types$1.f_expr || parent === types$1.f_stat)
      { return true }
    if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
      { return !parent.isExpr }

    // The check for `tt.name && exprAllowed` detects whether we are
    // after a `yield` or `of` construct. See the `updateContext` for
    // `tt.name`.
    if (prevType === types._return || prevType === types.name && this.exprAllowed)
      { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }
    if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType === types.arrow)
      { return true }
    if (prevType === types.braceL)
      { return parent === types$1.b_stat }
    if (prevType === types._var || prevType === types._const || prevType === types.name)
      { return false }
    return !this.exprAllowed
  };

  pp$3.inGeneratorContext = function() {
    for (var i = this.context.length - 1; i >= 1; i--) {
      var context = this.context[i];
      if (context.token === "function")
        { return context.generator }
    }
    return false
  };

  pp$3.updateContext = function(prevType) {
    var update, type = this.type;
    if (type.keyword && prevType === types.dot)
      { this.exprAllowed = false; }
    else if (update = type.updateContext)
      { update.call(this, prevType); }
    else
      { this.exprAllowed = type.beforeExpr; }
  };

  // Used to handle egde case when token context could not be inferred correctly in tokenize phase
  pp$3.overrideContext = function(tokenCtx) {
    if (this.curContext() !== tokenCtx) {
      this.context[this.context.length - 1] = tokenCtx;
    }
  };

  // Token-specific context update code

  types.parenR.updateContext = types.braceR.updateContext = function() {
    if (this.context.length === 1) {
      this.exprAllowed = true;
      return
    }
    var out = this.context.pop();
    if (out === types$1.b_stat && this.curContext().token === "function") {
      out = this.context.pop();
    }
    this.exprAllowed = !out.isExpr;
  };

  types.braceL.updateContext = function(prevType) {
    this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr);
    this.exprAllowed = true;
  };

  types.dollarBraceL.updateContext = function() {
    this.context.push(types$1.b_tmpl);
    this.exprAllowed = true;
  };

  types.parenL.updateContext = function(prevType) {
    var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
    this.context.push(statementParens ? types$1.p_stat : types$1.p_expr);
    this.exprAllowed = true;
  };

  types.incDec.updateContext = function() {
    // tokExprAllowed stays unchanged
  };

  types._function.updateContext = types._class.updateContext = function(prevType) {
    if (prevType.beforeExpr && prevType !== types._else &&
        !(prevType === types.semi && this.curContext() !== types$1.p_stat) &&
        !(prevType === types._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) &&
        !((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat))
      { this.context.push(types$1.f_expr); }
    else
      { this.context.push(types$1.f_stat); }
    this.exprAllowed = false;
  };

  types.backQuote.updateContext = function() {
    if (this.curContext() === types$1.q_tmpl)
      { this.context.pop(); }
    else
      { this.context.push(types$1.q_tmpl); }
    this.exprAllowed = false;
  };

  types.star.updateContext = function(prevType) {
    if (prevType === types._function) {
      var index = this.context.length - 1;
      if (this.context[index] === types$1.f_expr)
        { this.context[index] = types$1.f_expr_gen; }
      else
        { this.context[index] = types$1.f_gen; }
    }
    this.exprAllowed = true;
  };

  types.name.updateContext = function(prevType) {
    var allowed = false;
    if (this.options.ecmaVersion >= 6 && prevType !== types.dot) {
      if (this.value === "of" && !this.exprAllowed ||
          this.value === "yield" && this.inGeneratorContext())
        { allowed = true; }
    }
    this.exprAllowed = allowed;
  };

  // A recursive descent parser operates by defining functions for all

  var pp$4 = Parser.prototype;

  // Check if property name clashes with already added.
  // Object/class getters and setters are not allowed to clash —
  // either with each other or with an init property — and in
  // strict mode, init properties are also not allowed to be repeated.

  pp$4.checkPropClash = function(prop, propHash, refDestructuringErrors) {
    if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement")
      { return }
    if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
      { return }
    var key = prop.key;
    var name;
    switch (key.type) {
    case "Identifier": name = key.name; break
    case "Literal": name = String(key.value); break
    default: return
    }
    var kind = prop.kind;
    if (this.options.ecmaVersion >= 6) {
      if (name === "__proto__" && kind === "init") {
        if (propHash.proto) {
          if (refDestructuringErrors) {
            if (refDestructuringErrors.doubleProto < 0)
              { refDestructuringErrors.doubleProto = key.start; }
            // Backwards-compat kludge. Can be removed in version 6.0
          } else { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); }
        }
        propHash.proto = true;
      }
      return
    }
    name = "$" + name;
    var other = propHash[name];
    if (other) {
      var redefinition;
      if (kind === "init") {
        redefinition = this.strict && other.init || other.get || other.set;
      } else {
        redefinition = other.init || other[kind];
      }
      if (redefinition)
        { this.raiseRecoverable(key.start, "Redefinition of property"); }
    } else {
      other = propHash[name] = {
        init: false,
        get: false,
        set: false
      };
    }
    other[kind] = true;
  };

  // ### Expression parsing

  // These nest, from the most general expression type at the top to
  // 'atomic', nondivisible expression types at the bottom. Most of
  // the functions will simply let the function(s) below them parse,
  // and, *if* the syntactic construct they handle is present, wrap
  // the AST node that the inner parser gave them in another node.

  // Parse a full expression. The optional arguments are used to
  // forbid the `in` operator (in for loops initalization expressions)
  // and provide reference for storing '=' operator inside shorthand
  // property assignment in contexts where both object expression
  // and object pattern might appear (so it's possible to raise
  // delayed syntax error at correct position).

  pp$4.parseExpression = function(forInit, refDestructuringErrors) {
    var startPos = this.start, startLoc = this.startLoc;
    var expr = this.parseMaybeAssign(forInit, refDestructuringErrors);
    if (this.type === types.comma) {
      var node = this.startNodeAt(startPos, startLoc);
      node.expressions = [expr];
      while (this.eat(types.comma)) { node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)); }
      return this.finishNode(node, "SequenceExpression")
    }
    return expr
  };

  // Parse an assignment expression. This includes applications of
  // operators like `+=`.

  pp$4.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) {
    if (this.isContextual("yield")) {
      if (this.inGenerator) { return this.parseYield(forInit) }
      // The tokenizer will assume an expression is allowed after
      // `yield`, but this isn't that kind of yield
      else { this.exprAllowed = false; }
    }

    var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1;
    if (refDestructuringErrors) {
      oldParenAssign = refDestructuringErrors.parenthesizedAssign;
      oldTrailingComma = refDestructuringErrors.trailingComma;
      refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1;
    } else {
      refDestructuringErrors = new DestructuringErrors;
      ownDestructuringErrors = true;
    }

    var startPos = this.start, startLoc = this.startLoc;
    if (this.type === types.parenL || this.type === types.name) {
      this.potentialArrowAt = this.start;
      this.potentialArrowInForAwait = forInit === "await";
    }
    var left = this.parseMaybeConditional(forInit, refDestructuringErrors);
    if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); }
    if (this.type.isAssign) {
      var node = this.startNodeAt(startPos, startLoc);
      node.operator = this.value;
      if (this.type === types.eq)
        { left = this.toAssignable(left, false, refDestructuringErrors); }
      if (!ownDestructuringErrors) {
        refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = refDestructuringErrors.doubleProto = -1;
      }
      if (refDestructuringErrors.shorthandAssign >= left.start)
        { refDestructuringErrors.shorthandAssign = -1; } // reset because shorthand default was used correctly
      if (this.type === types.eq)
        { this.checkLValPattern(left); }
      else
        { this.checkLValSimple(left); }
      node.left = left;
      this.next();
      node.right = this.parseMaybeAssign(forInit);
      return this.finishNode(node, "AssignmentExpression")
    } else {
      if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }
    }
    if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; }
    if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; }
    return left
  };

  // Parse a ternary conditional (`?:`) operator.

  pp$4.parseMaybeConditional = function(forInit, refDestructuringErrors) {
    var startPos = this.start, startLoc = this.startLoc;
    var expr = this.parseExprOps(forInit, refDestructuringErrors);
    if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
    if (this.eat(types.question)) {
      var node = this.startNodeAt(startPos, startLoc);
      node.test = expr;
      node.consequent = this.parseMaybeAssign();
      this.expect(types.colon);
      node.alternate = this.parseMaybeAssign(forInit);
      return this.finishNode(node, "ConditionalExpression")
    }
    return expr
  };

  // Start the precedence parser.

  pp$4.parseExprOps = function(forInit, refDestructuringErrors) {
    var startPos = this.start, startLoc = this.startLoc;
    var expr = this.parseMaybeUnary(refDestructuringErrors, false, false, forInit);
    if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
    return expr.start === startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, forInit)
  };

  // Parse binary operators with the operator precedence parsing
  // algorithm. `left` is the left-hand side of the operator.
  // `minPrec` provides context that allows the function to stop and
  // defer further parser to one of its callers when it encounters an
  // operator that has a lower precedence than the set it is parsing.

  pp$4.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) {
    var prec = this.type.binop;
    if (prec != null && (!forInit || this.type !== types._in)) {
      if (prec > minPrec) {
        var logical = this.type === types.logicalOR || this.type === types.logicalAND;
        var coalesce = this.type === types.coalesce;
        if (coalesce) {
          // Handle the precedence of `tt.coalesce` as equal to the range of logical expressions.
          // In other words, `node.right` shouldn't contain logical expressions in order to check the mixed error.
          prec = types.logicalAND.binop;
        }
        var op = this.value;
        this.next();
        var startPos = this.start, startLoc = this.startLoc;
        var right = this.parseExprOp(this.parseMaybeUnary(null, false, false, forInit), startPos, startLoc, prec, forInit);
        var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical || coalesce);
        if ((logical && this.type === types.coalesce) || (coalesce && (this.type === types.logicalOR || this.type === types.logicalAND))) {
          this.raiseRecoverable(this.start, "Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses");
        }
        return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, forInit)
      }
    }
    return left
  };

  pp$4.buildBinary = function(startPos, startLoc, left, right, op, logical) {
    var node = this.startNodeAt(startPos, startLoc);
    node.left = left;
    node.operator = op;
    node.right = right;
    return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression")
  };

  // Parse unary operators, both prefix and postfix.

  pp$4.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) {
    var startPos = this.start, startLoc = this.startLoc, expr;
    if (this.isContextual("await") && this.canAwait) {
      expr = this.parseAwait(forInit);
      sawUnary = true;
    } else if (this.type.prefix) {
      var node = this.startNode(), update = this.type === types.incDec;
      node.operator = this.value;
      node.prefix = true;
      this.next();
      node.argument = this.parseMaybeUnary(null, true, update, forInit);
      this.checkExpressionErrors(refDestructuringErrors, true);
      if (update) { this.checkLValSimple(node.argument); }
      else if (this.strict && node.operator === "delete" &&
               node.argument.type === "Identifier")
        { this.raiseRecoverable(node.start, "Deleting local variable in strict mode"); }
      else if (node.operator === "delete" && isPrivateFieldAccess(node.argument))
        { this.raiseRecoverable(node.start, "Private fields can not be deleted"); }
      else { sawUnary = true; }
      expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
    } else {
      expr = this.parseExprSubscripts(refDestructuringErrors, forInit);
      if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
      while (this.type.postfix && !this.canInsertSemicolon()) {
        var node$1 = this.startNodeAt(startPos, startLoc);
        node$1.operator = this.value;
        node$1.prefix = false;
        node$1.argument = expr;
        this.checkLValSimple(expr);
        this.next();
        expr = this.finishNode(node$1, "UpdateExpression");
      }
    }

    if (!incDec && this.eat(types.starstar)) {
      if (sawUnary)
        { this.unexpected(this.lastTokStart); }
      else
        { return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false, false, forInit), "**", false) }
    } else {
      return expr
    }
  };

  function isPrivateFieldAccess(node) {
    return (
      node.type === "MemberExpression" && node.property.type === "PrivateIdentifier" ||
      node.type === "ChainExpression" && isPrivateFieldAccess(node.expression)
    )
  }

  // Parse call, dot, and `[]`-subscript expressions.

  pp$4.parseExprSubscripts = function(refDestructuringErrors, forInit) {
    var startPos = this.start, startLoc = this.startLoc;
    var expr = this.parseExprAtom(refDestructuringErrors, forInit);
    if (expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")")
      { return expr }
    var result = this.parseSubscripts(expr, startPos, startLoc, false, forInit);
    if (refDestructuringErrors && result.type === "MemberExpression") {
      if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; }
      if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; }
      if (refDestructuringErrors.trailingComma >= result.start) { refDestructuringErrors.trailingComma = -1; }
    }
    return result
  };

  pp$4.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) {
    var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
        this.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 &&
        this.potentialArrowAt === base.start;
    var optionalChained = false;

    while (true) {
      var element = this.parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit);

      if (element.optional) { optionalChained = true; }
      if (element === base || element.type === "ArrowFunctionExpression") {
        if (optionalChained) {
          var chainNode = this.startNodeAt(startPos, startLoc);
          chainNode.expression = element;
          element = this.finishNode(chainNode, "ChainExpression");
        }
        return element
      }

      base = element;
    }
  };

  pp$4.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) {
    var optionalSupported = this.options.ecmaVersion >= 11;
    var optional = optionalSupported && this.eat(types.questionDot);
    if (noCalls && optional) { this.raise(this.lastTokStart, "Optional chaining cannot appear in the callee of new expressions"); }

    var computed = this.eat(types.bracketL);
    if (computed || (optional && this.type !== types.parenL && this.type !== types.backQuote) || this.eat(types.dot)) {
      var node = this.startNodeAt(startPos, startLoc);
      node.object = base;
      if (computed) {
        node.property = this.parseExpression();
        this.expect(types.bracketR);
      } else if (this.type === types.privateId && base.type !== "Super") {
        node.property = this.parsePrivateIdent();
      } else {
        node.property = this.parseIdent(this.options.allowReserved !== "never");
      }
      node.computed = !!computed;
      if (optionalSupported) {
        node.optional = optional;
      }
      base = this.finishNode(node, "MemberExpression");
    } else if (!noCalls && this.eat(types.parenL)) {
      var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
      this.yieldPos = 0;
      this.awaitPos = 0;
      this.awaitIdentPos = 0;
      var exprList = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors);
      if (maybeAsyncArrow && !optional && !this.canInsertSemicolon() && this.eat(types.arrow)) {
        this.checkPatternErrors(refDestructuringErrors, false);
        this.checkYieldAwaitInDefaultParams();
        if (this.awaitIdentPos > 0)
          { this.raise(this.awaitIdentPos, "Cannot use 'await' as identifier inside an async function"); }
        this.yieldPos = oldYieldPos;
        this.awaitPos = oldAwaitPos;
        this.awaitIdentPos = oldAwaitIdentPos;
        return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, true, forInit)
      }
      this.checkExpressionErrors(refDestructuringErrors, true);
      this.yieldPos = oldYieldPos || this.yieldPos;
      this.awaitPos = oldAwaitPos || this.awaitPos;
      this.awaitIdentPos = oldAwaitIdentPos || this.awaitIdentPos;
      var node$1 = this.startNodeAt(startPos, startLoc);
      node$1.callee = base;
      node$1.arguments = exprList;
      if (optionalSupported) {
        node$1.optional = optional;
      }
      base = this.finishNode(node$1, "CallExpression");
    } else if (this.type === types.backQuote) {
      if (optional || optionalChained) {
        this.raise(this.start, "Optional chaining cannot appear in the tag of tagged template expressions");
      }
      var node$2 = this.startNodeAt(startPos, startLoc);
      node$2.tag = base;
      node$2.quasi = this.parseTemplate({isTagged: true});
      base = this.finishNode(node$2, "TaggedTemplateExpression");
    }
    return base
  };

  // Parse an atomic expression — either a single token that is an
  // expression, an expression started by a keyword like `function` or
  // `new`, or an expression wrapped in punctuation like `()`, `[]`,
  // or `{}`.

  pp$4.parseExprAtom = function(refDestructuringErrors, forInit) {
    // If a division operator appears in an expression position, the
    // tokenizer got confused, and we force it to read a regexp instead.
    if (this.type === types.slash) { this.readRegexp(); }

    var node, canBeArrow = this.potentialArrowAt === this.start;
    switch (this.type) {
    case types._super:
      if (!this.allowSuper)
        { this.raise(this.start, "'super' keyword outside a method"); }
      node = this.startNode();
      this.next();
      if (this.type === types.parenL && !this.allowDirectSuper)
        { this.raise(node.start, "super() call outside constructor of a subclass"); }
      // The `super` keyword can appear at below:
      // SuperProperty:
      //     super [ Expression ]
      //     super . IdentifierName
      // SuperCall:
      //     super ( Arguments )
      if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
        { this.unexpected(); }
      return this.finishNode(node, "Super")

    case types._this:
      node = this.startNode();
      this.next();
      return this.finishNode(node, "ThisExpression")

    case types.name:
      var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc;
      var id = this.parseIdent(false);
      if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function)) {
        this.overrideContext(types$1.f_expr);
        return this.parseFunction(this.startNodeAt(startPos, startLoc), 0, false, true, forInit)
      }
      if (canBeArrow && !this.canInsertSemicolon()) {
        if (this.eat(types.arrow))
          { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false, forInit) }
        if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name && !containsEsc &&
            (!this.potentialArrowInForAwait || this.value !== "of" || this.containsEsc)) {
          id = this.parseIdent(false);
          if (this.canInsertSemicolon() || !this.eat(types.arrow))
            { this.unexpected(); }
          return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true, forInit)
        }
      }
      return id

    case types.regexp:
      var value = this.value;
      node = this.parseLiteral(value.value);
      node.regex = {pattern: value.pattern, flags: value.flags};
      return node

    case types.num: case types.string:
      return this.parseLiteral(this.value)

    case types._null: case types._true: case types._false:
      node = this.startNode();
      node.value = this.type === types._null ? null : this.type === types._true;
      node.raw = this.type.keyword;
      this.next();
      return this.finishNode(node, "Literal")

    case types.parenL:
      var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow, forInit);
      if (refDestructuringErrors) {
        if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
          { refDestructuringErrors.parenthesizedAssign = start; }
        if (refDestructuringErrors.parenthesizedBind < 0)
          { refDestructuringErrors.parenthesizedBind = start; }
      }
      return expr

    case types.bracketL:
      node = this.startNode();
      this.next();
      node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors);
      return this.finishNode(node, "ArrayExpression")

    case types.braceL:
      this.overrideContext(types$1.b_expr);
      return this.parseObj(false, refDestructuringErrors)

    case types._function:
      node = this.startNode();
      this.next();
      return this.parseFunction(node, 0)

    case types._class:
      return this.parseClass(this.startNode(), false)

    case types._new:
      return this.parseNew()

    case types.backQuote:
      return this.parseTemplate()

    case types._import:
      if (this.options.ecmaVersion >= 11) {
        return this.parseExprImport()
      } else {
        return this.unexpected()
      }

    default:
      this.unexpected();
    }
  };

  pp$4.parseExprImport = function() {
    var node = this.startNode();

    // Consume `import` as an identifier for `import.meta`.
    // Because `this.parseIdent(true)` doesn't check escape sequences, it needs the check of `this.containsEsc`.
    if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword import"); }
    var meta = this.parseIdent(true);

    switch (this.type) {
    case types.parenL:
      return this.parseDynamicImport(node)
    case types.dot:
      node.meta = meta;
      return this.parseImportMeta(node)
    default:
      this.unexpected();
    }
  };

  pp$4.parseDynamicImport = function(node) {
    this.next(); // skip `(`

    // Parse node.source.
    node.source = this.parseMaybeAssign();

    // Verify ending.
    if (!this.eat(types.parenR)) {
      var errorPos = this.start;
      if (this.eat(types.comma) && this.eat(types.parenR)) {
        this.raiseRecoverable(errorPos, "Trailing comma is not allowed in import()");
      } else {
        this.unexpected(errorPos);
      }
    }

    return this.finishNode(node, "ImportExpression")
  };

  pp$4.parseImportMeta = function(node) {
    this.next(); // skip `.`

    var containsEsc = this.containsEsc;
    node.property = this.parseIdent(true);

    if (node.property.name !== "meta")
      { this.raiseRecoverable(node.property.start, "The only valid meta property for import is 'import.meta'"); }
    if (containsEsc)
      { this.raiseRecoverable(node.start, "'import.meta' must not contain escaped characters"); }
    if (this.options.sourceType !== "module" && !this.options.allowImportExportEverywhere)
      { this.raiseRecoverable(node.start, "Cannot use 'import.meta' outside a module"); }

    return this.finishNode(node, "MetaProperty")
  };

  pp$4.parseLiteral = function(value) {
    var node = this.startNode();
    node.value = value;
    node.raw = this.input.slice(this.start, this.end);
    if (node.raw.charCodeAt(node.raw.length - 1) === 110) { node.bigint = node.raw.slice(0, -1).replace(/_/g, ""); }
    this.next();
    return this.finishNode(node, "Literal")
  };

  pp$4.parseParenExpression = function() {
    this.expect(types.parenL);
    var val = this.parseExpression();
    this.expect(types.parenR);
    return val
  };

  pp$4.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {
    var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;
    if (this.options.ecmaVersion >= 6) {
      this.next();

      var innerStartPos = this.start, innerStartLoc = this.startLoc;
      var exprList = [], first = true, lastIsComma = false;
      var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart;
      this.yieldPos = 0;
      this.awaitPos = 0;
      // Do not save awaitIdentPos to allow checking awaits nested in parameters
      while (this.type !== types.parenR) {
        first ? first = false : this.expect(types.comma);
        if (allowTrailingComma && this.afterTrailingComma(types.parenR, true)) {
          lastIsComma = true;
          break
        } else if (this.type === types.ellipsis) {
          spreadStart = this.start;
          exprList.push(this.parseParenItem(this.parseRestBinding()));
          if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
          break
        } else {
          exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem));
        }
      }
      var innerEndPos = this.lastTokEnd, innerEndLoc = this.lastTokEndLoc;
      this.expect(types.parenR);

      if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
        this.checkPatternErrors(refDestructuringErrors, false);
        this.checkYieldAwaitInDefaultParams();
        this.yieldPos = oldYieldPos;
        this.awaitPos = oldAwaitPos;
        return this.parseParenArrowList(startPos, startLoc, exprList, forInit)
      }

      if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); }
      if (spreadStart) { this.unexpected(spreadStart); }
      this.checkExpressionErrors(refDestructuringErrors, true);
      this.yieldPos = oldYieldPos || this.yieldPos;
      this.awaitPos = oldAwaitPos || this.awaitPos;

      if (exprList.length > 1) {
        val = this.startNodeAt(innerStartPos, innerStartLoc);
        val.expressions = exprList;
        this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
      } else {
        val = exprList[0];
      }
    } else {
      val = this.parseParenExpression();
    }

    if (this.options.preserveParens) {
      var par = this.startNodeAt(startPos, startLoc);
      par.expression = val;
      return this.finishNode(par, "ParenthesizedExpression")
    } else {
      return val
    }
  };

  pp$4.parseParenItem = function(item) {
    return item
  };

  pp$4.parseParenArrowList = function(startPos, startLoc, exprList, forInit) {
    return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, forInit)
  };

  // New's precedence is slightly tricky. It must allow its argument to
  // be a `[]` or dot subscript expression, but not a call — at least,
  // not without wrapping it in parentheses. Thus, it uses the noCalls
  // argument to parseSubscripts to prevent it from consuming the
  // argument list.

  var empty$1 = [];

  pp$4.parseNew = function() {
    if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword new"); }
    var node = this.startNode();
    var meta = this.parseIdent(true);
    if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
      node.meta = meta;
      var containsEsc = this.containsEsc;
      node.property = this.parseIdent(true);
      if (node.property.name !== "target")
        { this.raiseRecoverable(node.property.start, "The only valid meta property for new is 'new.target'"); }
      if (containsEsc)
        { this.raiseRecoverable(node.start, "'new.target' must not contain escaped characters"); }
      if (!this.allowNewDotTarget)
        { this.raiseRecoverable(node.start, "'new.target' can only be used in functions and class static block"); }
      return this.finishNode(node, "MetaProperty")
    }
    var startPos = this.start, startLoc = this.startLoc, isImport = this.type === types._import;
    node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true, false);
    if (isImport && node.callee.type === "ImportExpression") {
      this.raise(startPos, "Cannot use new with import()");
    }
    if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false); }
    else { node.arguments = empty$1; }
    return this.finishNode(node, "NewExpression")
  };

  // Parse template expression.

  pp$4.parseTemplateElement = function(ref) {
    var isTagged = ref.isTagged;

    var elem = this.startNode();
    if (this.type === types.invalidTemplate) {
      if (!isTagged) {
        this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal");
      }
      elem.value = {
        raw: this.value,
        cooked: null
      };
    } else {
      elem.value = {
        raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
        cooked: this.value
      };
    }
    this.next();
    elem.tail = this.type === types.backQuote;
    return this.finishNode(elem, "TemplateElement")
  };

  pp$4.parseTemplate = function(ref) {
    if ( ref === void 0 ) ref = {};
    var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;

    var node = this.startNode();
    this.next();
    node.expressions = [];
    var curElt = this.parseTemplateElement({isTagged: isTagged});
    node.quasis = [curElt];
    while (!curElt.tail) {
      if (this.type === types.eof) { this.raise(this.pos, "Unterminated template literal"); }
      this.expect(types.dollarBraceL);
      node.expressions.push(this.parseExpression());
      this.expect(types.braceR);
      node.quasis.push(curElt = this.parseTemplateElement({isTagged: isTagged}));
    }
    this.next();
    return this.finishNode(node, "TemplateLiteral")
  };

  pp$4.isAsyncProp = function(prop) {
    return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" &&
      (this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types.star)) &&
      !lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
  };

  // Parse an object literal or binding pattern.

  pp$4.parseObj = function(isPattern, refDestructuringErrors) {
    var node = this.startNode(), first = true, propHash = {};
    node.properties = [];
    this.next();
    while (!this.eat(types.braceR)) {
      if (!first) {
        this.expect(types.comma);
        if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types.braceR)) { break }
      } else { first = false; }

      var prop = this.parseProperty(isPattern, refDestructuringErrors);
      if (!isPattern) { this.checkPropClash(prop, propHash, refDestructuringErrors); }
      node.properties.push(prop);
    }
    return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
  };

  pp$4.parseProperty = function(isPattern, refDestructuringErrors) {
    var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;
    if (this.options.ecmaVersion >= 9 && this.eat(types.ellipsis)) {
      if (isPattern) {
        prop.argument = this.parseIdent(false);
        if (this.type === types.comma) {
          this.raise(this.start, "Comma is not permitted after the rest element");
        }
        return this.finishNode(prop, "RestElement")
      }
      // To disallow parenthesized identifier via `this.toAssignable()`.
      if (this.type === types.parenL && refDestructuringErrors) {
        if (refDestructuringErrors.parenthesizedAssign < 0) {
          refDestructuringErrors.parenthesizedAssign = this.start;
        }
        if (refDestructuringErrors.parenthesizedBind < 0) {
          refDestructuringErrors.parenthesizedBind = this.start;
        }
      }
      // Parse argument.
      prop.argument = this.parseMaybeAssign(false, refDestructuringErrors);
      // To disallow trailing comma via `this.toAssignable()`.
      if (this.type === types.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
        refDestructuringErrors.trailingComma = this.start;
      }
      // Finish
      return this.finishNode(prop, "SpreadElement")
    }
    if (this.options.ecmaVersion >= 6) {
      prop.method = false;
      prop.shorthand = false;
      if (isPattern || refDestructuringErrors) {
        startPos = this.start;
        startLoc = this.startLoc;
      }
      if (!isPattern)
        { isGenerator = this.eat(types.star); }
    }
    var containsEsc = this.containsEsc;
    this.parsePropertyName(prop);
    if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {
      isAsync = true;
      isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
      this.parsePropertyName(prop, refDestructuringErrors);
    } else {
      isAsync = false;
    }
    this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc);
    return this.finishNode(prop, "Property")
  };

  pp$4.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
    if ((isGenerator || isAsync) && this.type === types.colon)
      { this.unexpected(); }

    if (this.eat(types.colon)) {
      prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);
      prop.kind = "init";
    } else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) {
      if (isPattern) { this.unexpected(); }
      prop.kind = "init";
      prop.method = true;
      prop.value = this.parseMethod(isGenerator, isAsync);
    } else if (!isPattern && !containsEsc &&
               this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
               (prop.key.name === "get" || prop.key.name === "set") &&
               (this.type !== types.comma && this.type !== types.braceR && this.type !== types.eq)) {
      if (isGenerator || isAsync) { this.unexpected(); }
      prop.kind = prop.key.name;
      this.parsePropertyName(prop);
      prop.value = this.parseMethod(false);
      var paramCount = prop.kind === "get" ? 0 : 1;
      if (prop.value.params.length !== paramCount) {
        var start = prop.value.start;
        if (prop.kind === "get")
          { this.raiseRecoverable(start, "getter should have no params"); }
        else
          { this.raiseRecoverable(start, "setter should have exactly one param"); }
      } else {
        if (prop.kind === "set" && prop.value.params[0].type === "RestElement")
          { this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params"); }
      }
    } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
      if (isGenerator || isAsync) { this.unexpected(); }
      this.checkUnreserved(prop.key);
      if (prop.key.name === "await" && !this.awaitIdentPos)
        { this.awaitIdentPos = startPos; }
      prop.kind = "init";
      if (isPattern) {
        prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));
      } else if (this.type === types.eq && refDestructuringErrors) {
        if (refDestructuringErrors.shorthandAssign < 0)
          { refDestructuringErrors.shorthandAssign = this.start; }
        prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));
      } else {
        prop.value = this.copyNode(prop.key);
      }
      prop.shorthand = true;
    } else { this.unexpected(); }
  };

  pp$4.parsePropertyName = function(prop) {
    if (this.options.ecmaVersion >= 6) {
      if (this.eat(types.bracketL)) {
        prop.computed = true;
        prop.key = this.parseMaybeAssign();
        this.expect(types.bracketR);
        return prop.key
      } else {
        prop.computed = false;
      }
    }
    return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never")
  };

  // Initialize empty function node.

  pp$4.initFunction = function(node) {
    node.id = null;
    if (this.options.ecmaVersion >= 6) { node.generator = node.expression = false; }
    if (this.options.ecmaVersion >= 8) { node.async = false; }
  };

  // Parse object or class method.

  pp$4.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {
    var node = this.startNode(), oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;

    this.initFunction(node);
    if (this.options.ecmaVersion >= 6)
      { node.generator = isGenerator; }
    if (this.options.ecmaVersion >= 8)
      { node.async = !!isAsync; }

    this.yieldPos = 0;
    this.awaitPos = 0;
    this.awaitIdentPos = 0;
    this.enterScope(functionFlags(isAsync, node.generator) | SCOPE_SUPER | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0));

    this.expect(types.parenL);
    node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
    this.checkYieldAwaitInDefaultParams();
    this.parseFunctionBody(node, false, true, false);

    this.yieldPos = oldYieldPos;
    this.awaitPos = oldAwaitPos;
    this.awaitIdentPos = oldAwaitIdentPos;
    return this.finishNode(node, "FunctionExpression")
  };

  // Parse arrow function expression with given parameters.

  pp$4.parseArrowExpression = function(node, params, isAsync, forInit) {
    var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;

    this.enterScope(functionFlags(isAsync, false) | SCOPE_ARROW);
    this.initFunction(node);
    if (this.options.ecmaVersion >= 8) { node.async = !!isAsync; }

    this.yieldPos = 0;
    this.awaitPos = 0;
    this.awaitIdentPos = 0;

    node.params = this.toAssignableList(params, true);
    this.parseFunctionBody(node, true, false, forInit);

    this.yieldPos = oldYieldPos;
    this.awaitPos = oldAwaitPos;
    this.awaitIdentPos = oldAwaitIdentPos;
    return this.finishNode(node, "ArrowFunctionExpression")
  };

  // Parse function body and check parameters.

  pp$4.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) {
    var isExpression = isArrowFunction && this.type !== types.braceL;
    var oldStrict = this.strict, useStrict = false;

    if (isExpression) {
      node.body = this.parseMaybeAssign(forInit);
      node.expression = true;
      this.checkParams(node, false);
    } else {
      var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params);
      if (!oldStrict || nonSimple) {
        useStrict = this.strictDirective(this.end);
        // If this is a strict mode function, verify that argument names
        // are not repeated, and it does not try to bind the words `eval`
        // or `arguments`.
        if (useStrict && nonSimple)
          { this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list"); }
      }
      // Start a new scope with regard to labels and the `inFunction`
      // flag (restore them to their old value afterwards).
      var oldLabels = this.labels;
      this.labels = [];
      if (useStrict) { this.strict = true; }

      // Add the params to varDeclaredNames to ensure that an error is thrown
      // if a let/const declaration in the function clashes with one of the params.
      this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && !isMethod && this.isSimpleParamList(node.params));
      // Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval'
      if (this.strict && node.id) { this.checkLValSimple(node.id, BIND_OUTSIDE); }
      node.body = this.parseBlock(false, undefined, useStrict && !oldStrict);
      node.expression = false;
      this.adaptDirectivePrologue(node.body.body);
      this.labels = oldLabels;
    }
    this.exitScope();
  };

  pp$4.isSimpleParamList = function(params) {
    for (var i = 0, list = params; i < list.length; i += 1)
      {
      var param = list[i];

      if (param.type !== "Identifier") { return false
    } }
    return true
  };

  // Checks function params for various disallowed patterns such as using "eval"
  // or "arguments" and duplicate parameters.

  pp$4.checkParams = function(node, allowDuplicates) {
    var nameHash = Object.create(null);
    for (var i = 0, list = node.params; i < list.length; i += 1)
      {
      var param = list[i];

      this.checkLValInnerPattern(param, BIND_VAR, allowDuplicates ? null : nameHash);
    }
  };

  // Parses a comma-separated list of expressions, and returns them as
  // an array. `close` is the token type that ends the list, and
  // `allowEmpty` can be turned on to allow subsequent commas with
  // nothing in between them to be parsed as `null` (which is needed
  // for array literals).

  pp$4.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
    var elts = [], first = true;
    while (!this.eat(close)) {
      if (!first) {
        this.expect(types.comma);
        if (allowTrailingComma && this.afterTrailingComma(close)) { break }
      } else { first = false; }

      var elt = (void 0);
      if (allowEmpty && this.type === types.comma)
        { elt = null; }
      else if (this.type === types.ellipsis) {
        elt = this.parseSpread(refDestructuringErrors);
        if (refDestructuringErrors && this.type === types.comma && refDestructuringErrors.trailingComma < 0)
          { refDestructuringErrors.trailingComma = this.start; }
      } else {
        elt = this.parseMaybeAssign(false, refDestructuringErrors);
      }
      elts.push(elt);
    }
    return elts
  };

  pp$4.checkUnreserved = function(ref) {
    var start = ref.start;
    var end = ref.end;
    var name = ref.name;

    if (this.inGenerator && name === "yield")
      { this.raiseRecoverable(start, "Cannot use 'yield' as identifier inside a generator"); }
    if (this.inAsync && name === "await")
      { this.raiseRecoverable(start, "Cannot use 'await' as identifier inside an async function"); }
    if (this.currentThisScope().inClassFieldInit && name === "arguments")
      { this.raiseRecoverable(start, "Cannot use 'arguments' in class field initializer"); }
    if (this.inClassStaticBlock && (name === "arguments" || name === "await"))
      { this.raise(start, ("Cannot use " + name + " in class static initialization block")); }
    if (this.keywords.test(name))
      { this.raise(start, ("Unexpected keyword '" + name + "'")); }
    if (this.options.ecmaVersion < 6 &&
      this.input.slice(start, end).indexOf("\\") !== -1) { return }
    var re = this.strict ? this.reservedWordsStrict : this.reservedWords;
    if (re.test(name)) {
      if (!this.inAsync && name === "await")
        { this.raiseRecoverable(start, "Cannot use keyword 'await' outside an async function"); }
      this.raiseRecoverable(start, ("The keyword '" + name + "' is reserved"));
    }
  };

  // Parse the next token as an identifier. If `liberal` is true (used
  // when parsing properties), it will also convert keywords into
  // identifiers.

  pp$4.parseIdent = function(liberal, isBinding) {
    var node = this.startNode();
    if (this.type === types.name) {
      node.name = this.value;
    } else if (this.type.keyword) {
      node.name = this.type.keyword;

      // To fix https://github.com/acornjs/acorn/issues/575
      // `class` and `function` keywords push new context into this.context.
      // But there is no chance to pop the context if the keyword is consumed as an identifier such as a property name.
      // If the previous token is a dot, this does not apply because the context-managing code already ignored the keyword
      if ((node.name === "class" || node.name === "function") &&
          (this.lastTokEnd !== this.lastTokStart + 1 || this.input.charCodeAt(this.lastTokStart) !== 46)) {
        this.context.pop();
      }
    } else {
      this.unexpected();
    }
    this.next(!!liberal);
    this.finishNode(node, "Identifier");
    if (!liberal) {
      this.checkUnreserved(node);
      if (node.name === "await" && !this.awaitIdentPos)
        { this.awaitIdentPos = node.start; }
    }
    return node
  };

  pp$4.parsePrivateIdent = function() {
    var node = this.startNode();
    if (this.type === types.privateId) {
      node.name = this.value;
    } else {
      this.unexpected();
    }
    this.next();
    this.finishNode(node, "PrivateIdentifier");

    // For validating existence
    if (this.privateNameStack.length === 0) {
      this.raise(node.start, ("Private field '#" + (node.name) + "' must be declared in an enclosing class"));
    } else {
      this.privateNameStack[this.privateNameStack.length - 1].used.push(node);
    }

    return node
  };

  // Parses yield expression inside generator.

  pp$4.parseYield = function(forInit) {
    if (!this.yieldPos) { this.yieldPos = this.start; }

    var node = this.startNode();
    this.next();
    if (this.type === types.semi || this.canInsertSemicolon() || (this.type !== types.star && !this.type.startsExpr)) {
      node.delegate = false;
      node.argument = null;
    } else {
      node.delegate = this.eat(types.star);
      node.argument = this.parseMaybeAssign(forInit);
    }
    return this.finishNode(node, "YieldExpression")
  };

  pp$4.parseAwait = function(forInit) {
    if (!this.awaitPos) { this.awaitPos = this.start; }

    var node = this.startNode();
    this.next();
    node.argument = this.parseMaybeUnary(null, true, false, forInit);
    return this.finishNode(node, "AwaitExpression")
  };

  var pp$5 = Parser.prototype;

  // This function is used to raise exceptions on parse errors. It
  // takes an offset integer (into the current `input`) to indicate
  // the location of the error, attaches the position to the end
  // of the error message, and then raises a `SyntaxError` with that
  // message.

  pp$5.raise = function(pos, message) {
    var loc = getLineInfo(this.input, pos);
    message += " (" + loc.line + ":" + loc.column + ")";
    var err = new SyntaxError(message);
    err.pos = pos; err.loc = loc; err.raisedAt = this.pos;
    throw err
  };

  pp$5.raiseRecoverable = pp$5.raise;

  pp$5.curPosition = function() {
    if (this.options.locations) {
      return new Position(this.curLine, this.pos - this.lineStart)
    }
  };

  var pp$6 = Parser.prototype;

  var Scope = function Scope(flags) {
    this.flags = flags;
    // A list of var-declared names in the current lexical scope
    this.var = [];
    // A list of lexically-declared names in the current lexical scope
    this.lexical = [];
    // A list of lexically-declared FunctionDeclaration names in the current lexical scope
    this.functions = [];
    // A switch to disallow the identifier reference 'arguments'
    this.inClassFieldInit = false;
  };

  // The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names.

  pp$6.enterScope = function(flags) {
    this.scopeStack.push(new Scope(flags));
  };

  pp$6.exitScope = function() {
    this.scopeStack.pop();
  };

  // The spec says:
  // > At the top level of a function, or script, function declarations are
  // > treated like var declarations rather than like lexical declarations.
  pp$6.treatFunctionsAsVarInScope = function(scope) {
    return (scope.flags & SCOPE_FUNCTION) || !this.inModule && (scope.flags & SCOPE_TOP)
  };

  pp$6.declareName = function(name, bindingType, pos) {
    var redeclared = false;
    if (bindingType === BIND_LEXICAL) {
      var scope = this.currentScope();
      redeclared = scope.lexical.indexOf(name) > -1 || scope.functions.indexOf(name) > -1 || scope.var.indexOf(name) > -1;
      scope.lexical.push(name);
      if (this.inModule && (scope.flags & SCOPE_TOP))
        { delete this.undefinedExports[name]; }
    } else if (bindingType === BIND_SIMPLE_CATCH) {
      var scope$1 = this.currentScope();
      scope$1.lexical.push(name);
    } else if (bindingType === BIND_FUNCTION) {
      var scope$2 = this.currentScope();
      if (this.treatFunctionsAsVar)
        { redeclared = scope$2.lexical.indexOf(name) > -1; }
      else
        { redeclared = scope$2.lexical.indexOf(name) > -1 || scope$2.var.indexOf(name) > -1; }
      scope$2.functions.push(name);
    } else {
      for (var i = this.scopeStack.length - 1; i >= 0; --i) {
        var scope$3 = this.scopeStack[i];
        if (scope$3.lexical.indexOf(name) > -1 && !((scope$3.flags & SCOPE_SIMPLE_CATCH) && scope$3.lexical[0] === name) ||
            !this.treatFunctionsAsVarInScope(scope$3) && scope$3.functions.indexOf(name) > -1) {
          redeclared = true;
          break
        }
        scope$3.var.push(name);
        if (this.inModule && (scope$3.flags & SCOPE_TOP))
          { delete this.undefinedExports[name]; }
        if (scope$3.flags & SCOPE_VAR) { break }
      }
    }
    if (redeclared) { this.raiseRecoverable(pos, ("Identifier '" + name + "' has already been declared")); }
  };

  pp$6.checkLocalExport = function(id) {
    // scope.functions must be empty as Module code is always strict.
    if (this.scopeStack[0].lexical.indexOf(id.name) === -1 &&
        this.scopeStack[0].var.indexOf(id.name) === -1) {
      this.undefinedExports[id.name] = id;
    }
  };

  pp$6.currentScope = function() {
    return this.scopeStack[this.scopeStack.length - 1]
  };

  pp$6.currentVarScope = function() {
    for (var i = this.scopeStack.length - 1;; i--) {
      var scope = this.scopeStack[i];
      if (scope.flags & SCOPE_VAR) { return scope }
    }
  };

  // Could be useful for `this`, `new.target`, `super()`, `super.property`, and `super[property]`.
  pp$6.currentThisScope = function() {
    for (var i = this.scopeStack.length - 1;; i--) {
      var scope = this.scopeStack[i];
      if (scope.flags & SCOPE_VAR && !(scope.flags & SCOPE_ARROW)) { return scope }
    }
  };

  var Node = function Node(parser, pos, loc) {
    this.type = "";
    this.start = pos;
    this.end = 0;
    if (parser.options.locations)
      { this.loc = new SourceLocation(parser, loc); }
    if (parser.options.directSourceFile)
      { this.sourceFile = parser.options.directSourceFile; }
    if (parser.options.ranges)
      { this.range = [pos, 0]; }
  };

  // Start an AST node, attaching a start offset.

  var pp$7 = Parser.prototype;

  pp$7.startNode = function() {
    return new Node(this, this.start, this.startLoc)
  };

  pp$7.startNodeAt = function(pos, loc) {
    return new Node(this, pos, loc)
  };

  // Finish an AST node, adding `type` and `end` properties.

  function finishNodeAt(node, type, pos, loc) {
    node.type = type;
    node.end = pos;
    if (this.options.locations)
      { node.loc.end = loc; }
    if (this.options.ranges)
      { node.range[1] = pos; }
    return node
  }

  pp$7.finishNode = function(node, type) {
    return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
  };

  // Finish node at given position

  pp$7.finishNodeAt = function(node, type, pos, loc) {
    return finishNodeAt.call(this, node, type, pos, loc)
  };

  pp$7.copyNode = function(node) {
    var newNode = new Node(this, node.start, this.startLoc);
    for (var prop in node) { newNode[prop] = node[prop]; }
    return newNode
  };

  // This file contains Unicode properties extracted from the ECMAScript
  // specification. The lists are extracted like so:
  // $$('#table-binary-unicode-properties > figure > table > tbody > tr > td:nth-child(1) code').map(el => el.innerText)

  // #table-binary-unicode-properties
  var ecma9BinaryProperties = "ASCII ASCII_Hex_Digit AHex Alphabetic Alpha Any Assigned Bidi_Control Bidi_C Bidi_Mirrored Bidi_M Case_Ignorable CI Cased Changes_When_Casefolded CWCF Changes_When_Casemapped CWCM Changes_When_Lowercased CWL Changes_When_NFKC_Casefolded CWKCF Changes_When_Titlecased CWT Changes_When_Uppercased CWU Dash Default_Ignorable_Code_Point DI Deprecated Dep Diacritic Dia Emoji Emoji_Component Emoji_Modifier Emoji_Modifier_Base Emoji_Presentation Extender Ext Grapheme_Base Gr_Base Grapheme_Extend Gr_Ext Hex_Digit Hex IDS_Binary_Operator IDSB IDS_Trinary_Operator IDST ID_Continue IDC ID_Start IDS Ideographic Ideo Join_Control Join_C Logical_Order_Exception LOE Lowercase Lower Math Noncharacter_Code_Point NChar Pattern_Syntax Pat_Syn Pattern_White_Space Pat_WS Quotation_Mark QMark Radical Regional_Indicator RI Sentence_Terminal STerm Soft_Dotted SD Terminal_Punctuation Term Unified_Ideograph UIdeo Uppercase Upper Variation_Selector VS White_Space space XID_Continue XIDC XID_Start XIDS";
  var ecma10BinaryProperties = ecma9BinaryProperties + " Extended_Pictographic";
  var ecma11BinaryProperties = ecma10BinaryProperties;
  var ecma12BinaryProperties = ecma11BinaryProperties + " EBase EComp EMod EPres ExtPict";
  var unicodeBinaryProperties = {
    9: ecma9BinaryProperties,
    10: ecma10BinaryProperties,
    11: ecma11BinaryProperties,
    12: ecma12BinaryProperties
  };

  // #table-unicode-general-category-values
  var unicodeGeneralCategoryValues = "Cased_Letter LC Close_Punctuation Pe Connector_Punctuation Pc Control Cc cntrl Currency_Symbol Sc Dash_Punctuation Pd Decimal_Number Nd digit Enclosing_Mark Me Final_Punctuation Pf Format Cf Initial_Punctuation Pi Letter L Letter_Number Nl Line_Separator Zl Lowercase_Letter Ll Mark M Combining_Mark Math_Symbol Sm Modifier_Letter Lm Modifier_Symbol Sk Nonspacing_Mark Mn Number N Open_Punctuation Ps Other C Other_Letter Lo Other_Number No Other_Punctuation Po Other_Symbol So Paragraph_Separator Zp Private_Use Co Punctuation P punct Separator Z Space_Separator Zs Spacing_Mark Mc Surrogate Cs Symbol S Titlecase_Letter Lt Unassigned Cn Uppercase_Letter Lu";

  // #table-unicode-script-values
  var ecma9ScriptValues = "Adlam Adlm Ahom Ahom Anatolian_Hieroglyphs Hluw Arabic Arab Armenian Armn Avestan Avst Balinese Bali Bamum Bamu Bassa_Vah Bass Batak Batk Bengali Beng Bhaiksuki Bhks Bopomofo Bopo Brahmi Brah Braille Brai Buginese Bugi Buhid Buhd Canadian_Aboriginal Cans Carian Cari Caucasian_Albanian Aghb Chakma Cakm Cham Cham Cherokee Cher Common Zyyy Coptic Copt Qaac Cuneiform Xsux Cypriot Cprt Cyrillic Cyrl Deseret Dsrt Devanagari Deva Duployan Dupl Egyptian_Hieroglyphs Egyp Elbasan Elba Ethiopic Ethi Georgian Geor Glagolitic Glag Gothic Goth Grantha Gran Greek Grek Gujarati Gujr Gurmukhi Guru Han Hani Hangul Hang Hanunoo Hano Hatran Hatr Hebrew Hebr Hiragana Hira Imperial_Aramaic Armi Inherited Zinh Qaai Inscriptional_Pahlavi Phli Inscriptional_Parthian Prti Javanese Java Kaithi Kthi Kannada Knda Katakana Kana Kayah_Li Kali Kharoshthi Khar Khmer Khmr Khojki Khoj Khudawadi Sind Lao Laoo Latin Latn Lepcha Lepc Limbu Limb Linear_A Lina Linear_B Linb Lisu Lisu Lycian Lyci Lydian Lydi Mahajani Mahj Malayalam Mlym Mandaic Mand Manichaean Mani Marchen Marc Masaram_Gondi Gonm Meetei_Mayek Mtei Mende_Kikakui Mend Meroitic_Cursive Merc Meroitic_Hieroglyphs Mero Miao Plrd Modi Modi Mongolian Mong Mro Mroo Multani Mult Myanmar Mymr Nabataean Nbat New_Tai_Lue Talu Newa Newa Nko Nkoo Nushu Nshu Ogham Ogam Ol_Chiki Olck Old_Hungarian Hung Old_Italic Ital Old_North_Arabian Narb Old_Permic Perm Old_Persian Xpeo Old_South_Arabian Sarb Old_Turkic Orkh Oriya Orya Osage Osge Osmanya Osma Pahawh_Hmong Hmng Palmyrene Palm Pau_Cin_Hau Pauc Phags_Pa Phag Phoenician Phnx Psalter_Pahlavi Phlp Rejang Rjng Runic Runr Samaritan Samr Saurashtra Saur Sharada Shrd Shavian Shaw Siddham Sidd SignWriting Sgnw Sinhala Sinh Sora_Sompeng Sora Soyombo Soyo Sundanese Sund Syloti_Nagri Sylo Syriac Syrc Tagalog Tglg Tagbanwa Tagb Tai_Le Tale Tai_Tham Lana Tai_Viet Tavt Takri Takr Tamil Taml Tangut Tang Telugu Telu Thaana Thaa Thai Thai Tibetan Tibt Tifinagh Tfng Tirhuta Tirh Ugaritic Ugar Vai Vaii Warang_Citi Wara Yi Yiii Zanabazar_Square Zanb";
  var ecma10ScriptValues = ecma9ScriptValues + " Dogra Dogr Gunjala_Gondi Gong Hanifi_Rohingya Rohg Makasar Maka Medefaidrin Medf Old_Sogdian Sogo Sogdian Sogd";
  var ecma11ScriptValues = ecma10ScriptValues + " Elymaic Elym Nandinagari Nand Nyiakeng_Puachue_Hmong Hmnp Wancho Wcho";
  var ecma12ScriptValues = ecma11ScriptValues + " Chorasmian Chrs Diak Dives_Akuru Khitan_Small_Script Kits Yezi Yezidi";
  var unicodeScriptValues = {
    9: ecma9ScriptValues,
    10: ecma10ScriptValues,
    11: ecma11ScriptValues,
    12: ecma12ScriptValues
  };

  var data = {};
  function buildUnicodeData(ecmaVersion) {
    var d = data[ecmaVersion] = {
      binary: wordsRegexp(unicodeBinaryProperties[ecmaVersion] + " " + unicodeGeneralCategoryValues),
      nonBinary: {
        General_Category: wordsRegexp(unicodeGeneralCategoryValues),
        Script: wordsRegexp(unicodeScriptValues[ecmaVersion])
      }
    };
    d.nonBinary.Script_Extensions = d.nonBinary.Script;

    d.nonBinary.gc = d.nonBinary.General_Category;
    d.nonBinary.sc = d.nonBinary.Script;
    d.nonBinary.scx = d.nonBinary.Script_Extensions;
  }
  buildUnicodeData(9);
  buildUnicodeData(10);
  buildUnicodeData(11);
  buildUnicodeData(12);

  var pp$8 = Parser.prototype;

  var RegExpValidationState = function RegExpValidationState(parser) {
    this.parser = parser;
    this.validFlags = "gim" + (parser.options.ecmaVersion >= 6 ? "uy" : "") + (parser.options.ecmaVersion >= 9 ? "s" : "") + (parser.options.ecmaVersion >= 13 ? "d" : "");
    this.unicodeProperties = data[parser.options.ecmaVersion >= 12 ? 12 : parser.options.ecmaVersion];
    this.source = "";
    this.flags = "";
    this.start = 0;
    this.switchU = false;
    this.switchN = false;
    this.pos = 0;
    this.lastIntValue = 0;
    this.lastStringValue = "";
    this.lastAssertionIsQuantifiable = false;
    this.numCapturingParens = 0;
    this.maxBackReference = 0;
    this.groupNames = [];
    this.backReferenceNames = [];
  };

  RegExpValidationState.prototype.reset = function reset (start, pattern, flags) {
    var unicode = flags.indexOf("u") !== -1;
    this.start = start | 0;
    this.source = pattern + "";
    this.flags = flags;
    this.switchU = unicode && this.parser.options.ecmaVersion >= 6;
    this.switchN = unicode && this.parser.options.ecmaVersion >= 9;
  };

  RegExpValidationState.prototype.raise = function raise (message) {
    this.parser.raiseRecoverable(this.start, ("Invalid regular expression: /" + (this.source) + "/: " + message));
  };

  // If u flag is given, this returns the code point at the index (it combines a surrogate pair).
  // Otherwise, this returns the code unit of the index (can be a part of a surrogate pair).
  RegExpValidationState.prototype.at = function at (i, forceU) {
      if ( forceU === void 0 ) forceU = false;

    var s = this.source;
    var l = s.length;
    if (i >= l) {
      return -1
    }
    var c = s.charCodeAt(i);
    if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l) {
      return c
    }
    var next = s.charCodeAt(i + 1);
    return next >= 0xDC00 && next <= 0xDFFF ? (c << 10) + next - 0x35FDC00 : c
  };

  RegExpValidationState.prototype.nextIndex = function nextIndex (i, forceU) {
      if ( forceU === void 0 ) forceU = false;

    var s = this.source;
    var l = s.length;
    if (i >= l) {
      return l
    }
    var c = s.charCodeAt(i), next;
    if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l ||
        (next = s.charCodeAt(i + 1)) < 0xDC00 || next > 0xDFFF) {
      return i + 1
    }
    return i + 2
  };

  RegExpValidationState.prototype.current = function current (forceU) {
      if ( forceU === void 0 ) forceU = false;

    return this.at(this.pos, forceU)
  };

  RegExpValidationState.prototype.lookahead = function lookahead (forceU) {
      if ( forceU === void 0 ) forceU = false;

    return this.at(this.nextIndex(this.pos, forceU), forceU)
  };

  RegExpValidationState.prototype.advance = function advance (forceU) {
      if ( forceU === void 0 ) forceU = false;

    this.pos = this.nextIndex(this.pos, forceU);
  };

  RegExpValidationState.prototype.eat = function eat (ch, forceU) {
      if ( forceU === void 0 ) forceU = false;

    if (this.current(forceU) === ch) {
      this.advance(forceU);
      return true
    }
    return false
  };

  function codePointToString(ch) {
    if (ch <= 0xFFFF) { return String.fromCharCode(ch) }
    ch -= 0x10000;
    return String.fromCharCode((ch >> 10) + 0xD800, (ch & 0x03FF) + 0xDC00)
  }

  /**
   * Validate the flags part of a given RegExpLiteral.
   *
   * @param {RegExpValidationState} state The state to validate RegExp.
   * @returns {void}
   */
  pp$8.validateRegExpFlags = function(state) {
    var validFlags = state.validFlags;
    var flags = state.flags;

    for (var i = 0; i < flags.length; i++) {
      var flag = flags.charAt(i);
      if (validFlags.indexOf(flag) === -1) {
        this.raise(state.start, "Invalid regular expression flag");
      }
      if (flags.indexOf(flag, i + 1) > -1) {
        this.raise(state.start, "Duplicate regular expression flag");
      }
    }
  };

  /**
   * Validate the pattern part of a given RegExpLiteral.
   *
   * @param {RegExpValidationState} state The state to validate RegExp.
   * @returns {void}
   */
  pp$8.validateRegExpPattern = function(state) {
    this.regexp_pattern(state);

    // The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of
    // parsing contains a |GroupName|, reparse with the goal symbol
    // |Pattern[~U, +N]| and use this result instead. Throw a *SyntaxError*
    // exception if _P_ did not conform to the grammar, if any elements of _P_
    // were not matched by the parse, or if any Early Error conditions exist.
    if (!state.switchN && this.options.ecmaVersion >= 9 && state.groupNames.length > 0) {
      state.switchN = true;
      this.regexp_pattern(state);
    }
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-Pattern
  pp$8.regexp_pattern = function(state) {
    state.pos = 0;
    state.lastIntValue = 0;
    state.lastStringValue = "";
    state.lastAssertionIsQuantifiable = false;
    state.numCapturingParens = 0;
    state.maxBackReference = 0;
    state.groupNames.length = 0;
    state.backReferenceNames.length = 0;

    this.regexp_disjunction(state);

    if (state.pos !== state.source.length) {
      // Make the same messages as V8.
      if (state.eat(0x29 /* ) */)) {
        state.raise("Unmatched ')'");
      }
      if (state.eat(0x5D /* ] */) || state.eat(0x7D /* } */)) {
        state.raise("Lone quantifier brackets");
      }
    }
    if (state.maxBackReference > state.numCapturingParens) {
      state.raise("Invalid escape");
    }
    for (var i = 0, list = state.backReferenceNames; i < list.length; i += 1) {
      var name = list[i];

      if (state.groupNames.indexOf(name) === -1) {
        state.raise("Invalid named capture referenced");
      }
    }
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-Disjunction
  pp$8.regexp_disjunction = function(state) {
    this.regexp_alternative(state);
    while (state.eat(0x7C /* | */)) {
      this.regexp_alternative(state);
    }

    // Make the same message as V8.
    if (this.regexp_eatQuantifier(state, true)) {
      state.raise("Nothing to repeat");
    }
    if (state.eat(0x7B /* { */)) {
      state.raise("Lone quantifier brackets");
    }
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-Alternative
  pp$8.regexp_alternative = function(state) {
    while (state.pos < state.source.length && this.regexp_eatTerm(state))
      { }
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term
  pp$8.regexp_eatTerm = function(state) {
    if (this.regexp_eatAssertion(state)) {
      // Handle `QuantifiableAssertion Quantifier` alternative.
      // `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion
      // is a QuantifiableAssertion.
      if (state.lastAssertionIsQuantifiable && this.regexp_eatQuantifier(state)) {
        // Make the same message as V8.
        if (state.switchU) {
          state.raise("Invalid quantifier");
        }
      }
      return true
    }

    if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) {
      this.regexp_eatQuantifier(state);
      return true
    }

    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Assertion
  pp$8.regexp_eatAssertion = function(state) {
    var start = state.pos;
    state.lastAssertionIsQuantifiable = false;

    // ^, $
    if (state.eat(0x5E /* ^ */) || state.eat(0x24 /* $ */)) {
      return true
    }

    // \b \B
    if (state.eat(0x5C /* \ */)) {
      if (state.eat(0x42 /* B */) || state.eat(0x62 /* b */)) {
        return true
      }
      state.pos = start;
    }

    // Lookahead / Lookbehind
    if (state.eat(0x28 /* ( */) && state.eat(0x3F /* ? */)) {
      var lookbehind = false;
      if (this.options.ecmaVersion >= 9) {
        lookbehind = state.eat(0x3C /* < */);
      }
      if (state.eat(0x3D /* = */) || state.eat(0x21 /* ! */)) {
        this.regexp_disjunction(state);
        if (!state.eat(0x29 /* ) */)) {
          state.raise("Unterminated group");
        }
        state.lastAssertionIsQuantifiable = !lookbehind;
        return true
      }
    }

    state.pos = start;
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-Quantifier
  pp$8.regexp_eatQuantifier = function(state, noError) {
    if ( noError === void 0 ) noError = false;

    if (this.regexp_eatQuantifierPrefix(state, noError)) {
      state.eat(0x3F /* ? */);
      return true
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix
  pp$8.regexp_eatQuantifierPrefix = function(state, noError) {
    return (
      state.eat(0x2A /* * */) ||
      state.eat(0x2B /* + */) ||
      state.eat(0x3F /* ? */) ||
      this.regexp_eatBracedQuantifier(state, noError)
    )
  };
  pp$8.regexp_eatBracedQuantifier = function(state, noError) {
    var start = state.pos;
    if (state.eat(0x7B /* { */)) {
      var min = 0, max = -1;
      if (this.regexp_eatDecimalDigits(state)) {
        min = state.lastIntValue;
        if (state.eat(0x2C /* , */) && this.regexp_eatDecimalDigits(state)) {
          max = state.lastIntValue;
        }
        if (state.eat(0x7D /* } */)) {
          // SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-term
          if (max !== -1 && max < min && !noError) {
            state.raise("numbers out of order in {} quantifier");
          }
          return true
        }
      }
      if (state.switchU && !noError) {
        state.raise("Incomplete quantifier");
      }
      state.pos = start;
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-Atom
  pp$8.regexp_eatAtom = function(state) {
    return (
      this.regexp_eatPatternCharacters(state) ||
      state.eat(0x2E /* . */) ||
      this.regexp_eatReverseSolidusAtomEscape(state) ||
      this.regexp_eatCharacterClass(state) ||
      this.regexp_eatUncapturingGroup(state) ||
      this.regexp_eatCapturingGroup(state)
    )
  };
  pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
    var start = state.pos;
    if (state.eat(0x5C /* \ */)) {
      if (this.regexp_eatAtomEscape(state)) {
        return true
      }
      state.pos = start;
    }
    return false
  };
  pp$8.regexp_eatUncapturingGroup = function(state) {
    var start = state.pos;
    if (state.eat(0x28 /* ( */)) {
      if (state.eat(0x3F /* ? */) && state.eat(0x3A /* : */)) {
        this.regexp_disjunction(state);
        if (state.eat(0x29 /* ) */)) {
          return true
        }
        state.raise("Unterminated group");
      }
      state.pos = start;
    }
    return false
  };
  pp$8.regexp_eatCapturingGroup = function(state) {
    if (state.eat(0x28 /* ( */)) {
      if (this.options.ecmaVersion >= 9) {
        this.regexp_groupSpecifier(state);
      } else if (state.current() === 0x3F /* ? */) {
        state.raise("Invalid group");
      }
      this.regexp_disjunction(state);
      if (state.eat(0x29 /* ) */)) {
        state.numCapturingParens += 1;
        return true
      }
      state.raise("Unterminated group");
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedAtom
  pp$8.regexp_eatExtendedAtom = function(state) {
    return (
      state.eat(0x2E /* . */) ||
      this.regexp_eatReverseSolidusAtomEscape(state) ||
      this.regexp_eatCharacterClass(state) ||
      this.regexp_eatUncapturingGroup(state) ||
      this.regexp_eatCapturingGroup(state) ||
      this.regexp_eatInvalidBracedQuantifier(state) ||
      this.regexp_eatExtendedPatternCharacter(state)
    )
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier
  pp$8.regexp_eatInvalidBracedQuantifier = function(state) {
    if (this.regexp_eatBracedQuantifier(state, true)) {
      state.raise("Nothing to repeat");
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-SyntaxCharacter
  pp$8.regexp_eatSyntaxCharacter = function(state) {
    var ch = state.current();
    if (isSyntaxCharacter(ch)) {
      state.lastIntValue = ch;
      state.advance();
      return true
    }
    return false
  };
  function isSyntaxCharacter(ch) {
    return (
      ch === 0x24 /* $ */ ||
      ch >= 0x28 /* ( */ && ch <= 0x2B /* + */ ||
      ch === 0x2E /* . */ ||
      ch === 0x3F /* ? */ ||
      ch >= 0x5B /* [ */ && ch <= 0x5E /* ^ */ ||
      ch >= 0x7B /* { */ && ch <= 0x7D /* } */
    )
  }

  // https://www.ecma-international.org/ecma-262/8.0/#prod-PatternCharacter
  // But eat eager.
  pp$8.regexp_eatPatternCharacters = function(state) {
    var start = state.pos;
    var ch = 0;
    while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) {
      state.advance();
    }
    return state.pos !== start
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedPatternCharacter
  pp$8.regexp_eatExtendedPatternCharacter = function(state) {
    var ch = state.current();
    if (
      ch !== -1 &&
      ch !== 0x24 /* $ */ &&
      !(ch >= 0x28 /* ( */ && ch <= 0x2B /* + */) &&
      ch !== 0x2E /* . */ &&
      ch !== 0x3F /* ? */ &&
      ch !== 0x5B /* [ */ &&
      ch !== 0x5E /* ^ */ &&
      ch !== 0x7C /* | */
    ) {
      state.advance();
      return true
    }
    return false
  };

  // GroupSpecifier ::
  //   [empty]
  //   `?` GroupName
  pp$8.regexp_groupSpecifier = function(state) {
    if (state.eat(0x3F /* ? */)) {
      if (this.regexp_eatGroupName(state)) {
        if (state.groupNames.indexOf(state.lastStringValue) !== -1) {
          state.raise("Duplicate capture group name");
        }
        state.groupNames.push(state.lastStringValue);
        return
      }
      state.raise("Invalid group");
    }
  };

  // GroupName ::
  //   `<` RegExpIdentifierName `>`
  // Note: this updates `state.lastStringValue` property with the eaten name.
  pp$8.regexp_eatGroupName = function(state) {
    state.lastStringValue = "";
    if (state.eat(0x3C /* < */)) {
      if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) {
        return true
      }
      state.raise("Invalid capture group name");
    }
    return false
  };

  // RegExpIdentifierName ::
  //   RegExpIdentifierStart
  //   RegExpIdentifierName RegExpIdentifierPart
  // Note: this updates `state.lastStringValue` property with the eaten name.
  pp$8.regexp_eatRegExpIdentifierName = function(state) {
    state.lastStringValue = "";
    if (this.regexp_eatRegExpIdentifierStart(state)) {
      state.lastStringValue += codePointToString(state.lastIntValue);
      while (this.regexp_eatRegExpIdentifierPart(state)) {
        state.lastStringValue += codePointToString(state.lastIntValue);
      }
      return true
    }
    return false
  };

  // RegExpIdentifierStart ::
  //   UnicodeIDStart
  //   `$`
  //   `_`
  //   `\` RegExpUnicodeEscapeSequence[+U]
  pp$8.regexp_eatRegExpIdentifierStart = function(state) {
    var start = state.pos;
    var forceU = this.options.ecmaVersion >= 11;
    var ch = state.current(forceU);
    state.advance(forceU);

    if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) {
      ch = state.lastIntValue;
    }
    if (isRegExpIdentifierStart(ch)) {
      state.lastIntValue = ch;
      return true
    }

    state.pos = start;
    return false
  };
  function isRegExpIdentifierStart(ch) {
    return isIdentifierStart(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */
  }

  // RegExpIdentifierPart ::
  //   UnicodeIDContinue
  //   `$`
  //   `_`
  //   `\` RegExpUnicodeEscapeSequence[+U]
  //   <ZWNJ>
  //   <ZWJ>
  pp$8.regexp_eatRegExpIdentifierPart = function(state) {
    var start = state.pos;
    var forceU = this.options.ecmaVersion >= 11;
    var ch = state.current(forceU);
    state.advance(forceU);

    if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) {
      ch = state.lastIntValue;
    }
    if (isRegExpIdentifierPart(ch)) {
      state.lastIntValue = ch;
      return true
    }

    state.pos = start;
    return false
  };
  function isRegExpIdentifierPart(ch) {
    return isIdentifierChar(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ || ch === 0x200C /* <ZWNJ> */ || ch === 0x200D /* <ZWJ> */
  }

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape
  pp$8.regexp_eatAtomEscape = function(state) {
    if (
      this.regexp_eatBackReference(state) ||
      this.regexp_eatCharacterClassEscape(state) ||
      this.regexp_eatCharacterEscape(state) ||
      (state.switchN && this.regexp_eatKGroupName(state))
    ) {
      return true
    }
    if (state.switchU) {
      // Make the same message as V8.
      if (state.current() === 0x63 /* c */) {
        state.raise("Invalid unicode escape");
      }
      state.raise("Invalid escape");
    }
    return false
  };
  pp$8.regexp_eatBackReference = function(state) {
    var start = state.pos;
    if (this.regexp_eatDecimalEscape(state)) {
      var n = state.lastIntValue;
      if (state.switchU) {
        // For SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-atomescape
        if (n > state.maxBackReference) {
          state.maxBackReference = n;
        }
        return true
      }
      if (n <= state.numCapturingParens) {
        return true
      }
      state.pos = start;
    }
    return false
  };
  pp$8.regexp_eatKGroupName = function(state) {
    if (state.eat(0x6B /* k */)) {
      if (this.regexp_eatGroupName(state)) {
        state.backReferenceNames.push(state.lastStringValue);
        return true
      }
      state.raise("Invalid named reference");
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape
  pp$8.regexp_eatCharacterEscape = function(state) {
    return (
      this.regexp_eatControlEscape(state) ||
      this.regexp_eatCControlLetter(state) ||
      this.regexp_eatZero(state) ||
      this.regexp_eatHexEscapeSequence(state) ||
      this.regexp_eatRegExpUnicodeEscapeSequence(state, false) ||
      (!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
      this.regexp_eatIdentityEscape(state)
    )
  };
  pp$8.regexp_eatCControlLetter = function(state) {
    var start = state.pos;
    if (state.eat(0x63 /* c */)) {
      if (this.regexp_eatControlLetter(state)) {
        return true
      }
      state.pos = start;
    }
    return false
  };
  pp$8.regexp_eatZero = function(state) {
    if (state.current() === 0x30 /* 0 */ && !isDecimalDigit(state.lookahead())) {
      state.lastIntValue = 0;
      state.advance();
      return true
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlEscape
  pp$8.regexp_eatControlEscape = function(state) {
    var ch = state.current();
    if (ch === 0x74 /* t */) {
      state.lastIntValue = 0x09; /* \t */
      state.advance();
      return true
    }
    if (ch === 0x6E /* n */) {
      state.lastIntValue = 0x0A; /* \n */
      state.advance();
      return true
    }
    if (ch === 0x76 /* v */) {
      state.lastIntValue = 0x0B; /* \v */
      state.advance();
      return true
    }
    if (ch === 0x66 /* f */) {
      state.lastIntValue = 0x0C; /* \f */
      state.advance();
      return true
    }
    if (ch === 0x72 /* r */) {
      state.lastIntValue = 0x0D; /* \r */
      state.advance();
      return true
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlLetter
  pp$8.regexp_eatControlLetter = function(state) {
    var ch = state.current();
    if (isControlLetter(ch)) {
      state.lastIntValue = ch % 0x20;
      state.advance();
      return true
    }
    return false
  };
  function isControlLetter(ch) {
    return (
      (ch >= 0x41 /* A */ && ch <= 0x5A /* Z */) ||
      (ch >= 0x61 /* a */ && ch <= 0x7A /* z */)
    )
  }

  // https://www.ecma-international.org/ecma-262/8.0/#prod-RegExpUnicodeEscapeSequence
  pp$8.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU) {
    if ( forceU === void 0 ) forceU = false;

    var start = state.pos;
    var switchU = forceU || state.switchU;

    if (state.eat(0x75 /* u */)) {
      if (this.regexp_eatFixedHexDigits(state, 4)) {
        var lead = state.lastIntValue;
        if (switchU && lead >= 0xD800 && lead <= 0xDBFF) {
          var leadSurrogateEnd = state.pos;
          if (state.eat(0x5C /* \ */) && state.eat(0x75 /* u */) && this.regexp_eatFixedHexDigits(state, 4)) {
            var trail = state.lastIntValue;
            if (trail >= 0xDC00 && trail <= 0xDFFF) {
              state.lastIntValue = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
              return true
            }
          }
          state.pos = leadSurrogateEnd;
          state.lastIntValue = lead;
        }
        return true
      }
      if (
        switchU &&
        state.eat(0x7B /* { */) &&
        this.regexp_eatHexDigits(state) &&
        state.eat(0x7D /* } */) &&
        isValidUnicode(state.lastIntValue)
      ) {
        return true
      }
      if (switchU) {
        state.raise("Invalid unicode escape");
      }
      state.pos = start;
    }

    return false
  };
  function isValidUnicode(ch) {
    return ch >= 0 && ch <= 0x10FFFF
  }

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-IdentityEscape
  pp$8.regexp_eatIdentityEscape = function(state) {
    if (state.switchU) {
      if (this.regexp_eatSyntaxCharacter(state)) {
        return true
      }
      if (state.eat(0x2F /* / */)) {
        state.lastIntValue = 0x2F; /* / */
        return true
      }
      return false
    }

    var ch = state.current();
    if (ch !== 0x63 /* c */ && (!state.switchN || ch !== 0x6B /* k */)) {
      state.lastIntValue = ch;
      state.advance();
      return true
    }

    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalEscape
  pp$8.regexp_eatDecimalEscape = function(state) {
    state.lastIntValue = 0;
    var ch = state.current();
    if (ch >= 0x31 /* 1 */ && ch <= 0x39 /* 9 */) {
      do {
        state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */);
        state.advance();
      } while ((ch = state.current()) >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */)
      return true
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClassEscape
  pp$8.regexp_eatCharacterClassEscape = function(state) {
    var ch = state.current();

    if (isCharacterClassEscape(ch)) {
      state.lastIntValue = -1;
      state.advance();
      return true
    }

    if (
      state.switchU &&
      this.options.ecmaVersion >= 9 &&
      (ch === 0x50 /* P */ || ch === 0x70 /* p */)
    ) {
      state.lastIntValue = -1;
      state.advance();
      if (
        state.eat(0x7B /* { */) &&
        this.regexp_eatUnicodePropertyValueExpression(state) &&
        state.eat(0x7D /* } */)
      ) {
        return true
      }
      state.raise("Invalid property name");
    }

    return false
  };
  function isCharacterClassEscape(ch) {
    return (
      ch === 0x64 /* d */ ||
      ch === 0x44 /* D */ ||
      ch === 0x73 /* s */ ||
      ch === 0x53 /* S */ ||
      ch === 0x77 /* w */ ||
      ch === 0x57 /* W */
    )
  }

  // UnicodePropertyValueExpression ::
  //   UnicodePropertyName `=` UnicodePropertyValue
  //   LoneUnicodePropertyNameOrValue
  pp$8.regexp_eatUnicodePropertyValueExpression = function(state) {
    var start = state.pos;

    // UnicodePropertyName `=` UnicodePropertyValue
    if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) {
      var name = state.lastStringValue;
      if (this.regexp_eatUnicodePropertyValue(state)) {
        var value = state.lastStringValue;
        this.regexp_validateUnicodePropertyNameAndValue(state, name, value);
        return true
      }
    }
    state.pos = start;

    // LoneUnicodePropertyNameOrValue
    if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) {
      var nameOrValue = state.lastStringValue;
      this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue);
      return true
    }
    return false
  };
  pp$8.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
    if (!has(state.unicodeProperties.nonBinary, name))
      { state.raise("Invalid property name"); }
    if (!state.unicodeProperties.nonBinary[name].test(value))
      { state.raise("Invalid property value"); }
  };
  pp$8.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) {
    if (!state.unicodeProperties.binary.test(nameOrValue))
      { state.raise("Invalid property name"); }
  };

  // UnicodePropertyName ::
  //   UnicodePropertyNameCharacters
  pp$8.regexp_eatUnicodePropertyName = function(state) {
    var ch = 0;
    state.lastStringValue = "";
    while (isUnicodePropertyNameCharacter(ch = state.current())) {
      state.lastStringValue += codePointToString(ch);
      state.advance();
    }
    return state.lastStringValue !== ""
  };
  function isUnicodePropertyNameCharacter(ch) {
    return isControlLetter(ch) || ch === 0x5F /* _ */
  }

  // UnicodePropertyValue ::
  //   UnicodePropertyValueCharacters
  pp$8.regexp_eatUnicodePropertyValue = function(state) {
    var ch = 0;
    state.lastStringValue = "";
    while (isUnicodePropertyValueCharacter(ch = state.current())) {
      state.lastStringValue += codePointToString(ch);
      state.advance();
    }
    return state.lastStringValue !== ""
  };
  function isUnicodePropertyValueCharacter(ch) {
    return isUnicodePropertyNameCharacter(ch) || isDecimalDigit(ch)
  }

  // LoneUnicodePropertyNameOrValue ::
  //   UnicodePropertyValueCharacters
  pp$8.regexp_eatLoneUnicodePropertyNameOrValue = function(state) {
    return this.regexp_eatUnicodePropertyValue(state)
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClass
  pp$8.regexp_eatCharacterClass = function(state) {
    if (state.eat(0x5B /* [ */)) {
      state.eat(0x5E /* ^ */);
      this.regexp_classRanges(state);
      if (state.eat(0x5D /* ] */)) {
        return true
      }
      // Unreachable since it threw "unterminated regular expression" error before.
      state.raise("Unterminated character class");
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassRanges
  // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRanges
  // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRangesNoDash
  pp$8.regexp_classRanges = function(state) {
    while (this.regexp_eatClassAtom(state)) {
      var left = state.lastIntValue;
      if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) {
        var right = state.lastIntValue;
        if (state.switchU && (left === -1 || right === -1)) {
          state.raise("Invalid character class");
        }
        if (left !== -1 && right !== -1 && left > right) {
          state.raise("Range out of order in character class");
        }
      }
    }
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtom
  // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtomNoDash
  pp$8.regexp_eatClassAtom = function(state) {
    var start = state.pos;

    if (state.eat(0x5C /* \ */)) {
      if (this.regexp_eatClassEscape(state)) {
        return true
      }
      if (state.switchU) {
        // Make the same message as V8.
        var ch$1 = state.current();
        if (ch$1 === 0x63 /* c */ || isOctalDigit(ch$1)) {
          state.raise("Invalid class escape");
        }
        state.raise("Invalid escape");
      }
      state.pos = start;
    }

    var ch = state.current();
    if (ch !== 0x5D /* ] */) {
      state.lastIntValue = ch;
      state.advance();
      return true
    }

    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassEscape
  pp$8.regexp_eatClassEscape = function(state) {
    var start = state.pos;

    if (state.eat(0x62 /* b */)) {
      state.lastIntValue = 0x08; /* <BS> */
      return true
    }

    if (state.switchU && state.eat(0x2D /* - */)) {
      state.lastIntValue = 0x2D; /* - */
      return true
    }

    if (!state.switchU && state.eat(0x63 /* c */)) {
      if (this.regexp_eatClassControlLetter(state)) {
        return true
      }
      state.pos = start;
    }

    return (
      this.regexp_eatCharacterClassEscape(state) ||
      this.regexp_eatCharacterEscape(state)
    )
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassControlLetter
  pp$8.regexp_eatClassControlLetter = function(state) {
    var ch = state.current();
    if (isDecimalDigit(ch) || ch === 0x5F /* _ */) {
      state.lastIntValue = ch % 0x20;
      state.advance();
      return true
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence
  pp$8.regexp_eatHexEscapeSequence = function(state) {
    var start = state.pos;
    if (state.eat(0x78 /* x */)) {
      if (this.regexp_eatFixedHexDigits(state, 2)) {
        return true
      }
      if (state.switchU) {
        state.raise("Invalid escape");
      }
      state.pos = start;
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalDigits
  pp$8.regexp_eatDecimalDigits = function(state) {
    var start = state.pos;
    var ch = 0;
    state.lastIntValue = 0;
    while (isDecimalDigit(ch = state.current())) {
      state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */);
      state.advance();
    }
    return state.pos !== start
  };
  function isDecimalDigit(ch) {
    return ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */
  }

  // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigits
  pp$8.regexp_eatHexDigits = function(state) {
    var start = state.pos;
    var ch = 0;
    state.lastIntValue = 0;
    while (isHexDigit(ch = state.current())) {
      state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);
      state.advance();
    }
    return state.pos !== start
  };
  function isHexDigit(ch) {
    return (
      (ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */) ||
      (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) ||
      (ch >= 0x61 /* a */ && ch <= 0x66 /* f */)
    )
  }
  function hexToInt(ch) {
    if (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) {
      return 10 + (ch - 0x41 /* A */)
    }
    if (ch >= 0x61 /* a */ && ch <= 0x66 /* f */) {
      return 10 + (ch - 0x61 /* a */)
    }
    return ch - 0x30 /* 0 */
  }

  // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-LegacyOctalEscapeSequence
  // Allows only 0-377(octal) i.e. 0-255(decimal).
  pp$8.regexp_eatLegacyOctalEscapeSequence = function(state) {
    if (this.regexp_eatOctalDigit(state)) {
      var n1 = state.lastIntValue;
      if (this.regexp_eatOctalDigit(state)) {
        var n2 = state.lastIntValue;
        if (n1 <= 3 && this.regexp_eatOctalDigit(state)) {
          state.lastIntValue = n1 * 64 + n2 * 8 + state.lastIntValue;
        } else {
          state.lastIntValue = n1 * 8 + n2;
        }
      } else {
        state.lastIntValue = n1;
      }
      return true
    }
    return false
  };

  // https://www.ecma-international.org/ecma-262/8.0/#prod-OctalDigit
  pp$8.regexp_eatOctalDigit = function(state) {
    var ch = state.current();
    if (isOctalDigit(ch)) {
      state.lastIntValue = ch - 0x30; /* 0 */
      state.advance();
      return true
    }
    state.lastIntValue = 0;
    return false
  };
  function isOctalDigit(ch) {
    return ch >= 0x30 /* 0 */ && ch <= 0x37 /* 7 */
  }

  // https://www.ecma-international.org/ecma-262/8.0/#prod-Hex4Digits
  // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigit
  // And HexDigit HexDigit in https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence
  pp$8.regexp_eatFixedHexDigits = function(state, length) {
    var start = state.pos;
    state.lastIntValue = 0;
    for (var i = 0; i < length; ++i) {
      var ch = state.current();
      if (!isHexDigit(ch)) {
        state.pos = start;
        return false
      }
      state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);
      state.advance();
    }
    return true
  };

  // Object type used to represent tokens. Note that normally, tokens
  // simply exist as properties on the parser object. This is only
  // used for the onToken callback and the external tokenizer.

  var Token = function Token(p) {
    this.type = p.type;
    this.value = p.value;
    this.start = p.start;
    this.end = p.end;
    if (p.options.locations)
      { this.loc = new SourceLocation(p, p.startLoc, p.endLoc); }
    if (p.options.ranges)
      { this.range = [p.start, p.end]; }
  };

  // ## Tokenizer

  var pp$9 = Parser.prototype;

  // Move to the next token

  pp$9.next = function(ignoreEscapeSequenceInKeyword) {
    if (!ignoreEscapeSequenceInKeyword && this.type.keyword && this.containsEsc)
      { this.raiseRecoverable(this.start, "Escape sequence in keyword " + this.type.keyword); }
    if (this.options.onToken)
      { this.options.onToken(new Token(this)); }

    this.lastTokEnd = this.end;
    this.lastTokStart = this.start;
    this.lastTokEndLoc = this.endLoc;
    this.lastTokStartLoc = this.startLoc;
    this.nextToken();
  };

  pp$9.getToken = function() {
    this.next();
    return new Token(this)
  };

  // If we're in an ES6 environment, make parsers iterable
  if (typeof Symbol !== "undefined")
    { pp$9[Symbol.iterator] = function() {
      var this$1$1 = this;

      return {
        next: function () {
          var token = this$1$1.getToken();
          return {
            done: token.type === types.eof,
            value: token
          }
        }
      }
    }; }

  // Toggle strict mode. Re-reads the next number or string to please
  // pedantic tests (`"use strict"; 010;` should fail).

  // Read a single token, updating the parser object's token-related
  // properties.

  pp$9.nextToken = function() {
    var curContext = this.curContext();
    if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }

    this.start = this.pos;
    if (this.options.locations) { this.startLoc = this.curPosition(); }
    if (this.pos >= this.input.length) { return this.finishToken(types.eof) }

    if (curContext.override) { return curContext.override(this) }
    else { this.readToken(this.fullCharCodeAtPos()); }
  };

  pp$9.readToken = function(code) {
    // Identifier or keyword. '\uXXXX' sequences are allowed in
    // identifiers, so '\' also dispatches to that.
    if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
      { return this.readWord() }

    return this.getTokenFromCode(code)
  };

  pp$9.fullCharCodeAtPos = function() {
    var code = this.input.charCodeAt(this.pos);
    if (code <= 0xd7ff || code >= 0xdc00) { return code }
    var next = this.input.charCodeAt(this.pos + 1);
    return next <= 0xdbff || next >= 0xe000 ? code : (code << 10) + next - 0x35fdc00
  };

  pp$9.skipBlockComment = function() {
    var startLoc = this.options.onComment && this.curPosition();
    var start = this.pos, end = this.input.indexOf("*/", this.pos += 2);
    if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); }
    this.pos = end + 2;
    if (this.options.locations) {
      lineBreakG.lastIndex = start;
      var match;
      while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
        ++this.curLine;
        this.lineStart = match.index + match[0].length;
      }
    }
    if (this.options.onComment)
      { this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
                             startLoc, this.curPosition()); }
  };

  pp$9.skipLineComment = function(startSkip) {
    var start = this.pos;
    var startLoc = this.options.onComment && this.curPosition();
    var ch = this.input.charCodeAt(this.pos += startSkip);
    while (this.pos < this.input.length && !isNewLine(ch)) {
      ch = this.input.charCodeAt(++this.pos);
    }
    if (this.options.onComment)
      { this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
                             startLoc, this.curPosition()); }
  };

  // Called at the start of the parse and after every token. Skips
  // whitespace and comments, and.

  pp$9.skipSpace = function() {
    loop: while (this.pos < this.input.length) {
      var ch = this.input.charCodeAt(this.pos);
      switch (ch) {
      case 32: case 160: // ' '
        ++this.pos;
        break
      case 13:
        if (this.input.charCodeAt(this.pos + 1) === 10) {
          ++this.pos;
        }
      case 10: case 8232: case 8233:
        ++this.pos;
        if (this.options.locations) {
          ++this.curLine;
          this.lineStart = this.pos;
        }
        break
      case 47: // '/'
        switch (this.input.charCodeAt(this.pos + 1)) {
        case 42: // '*'
          this.skipBlockComment();
          break
        case 47:
          this.skipLineComment(2);
          break
        default:
          break loop
        }
        break
      default:
        if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
          ++this.pos;
        } else {
          break loop
        }
      }
    }
  };

  // Called at the end of every token. Sets `end`, `val`, and
  // maintains `context` and `exprAllowed`, and skips the space after
  // the token, so that the next one's `start` will point at the
  // right position.

  pp$9.finishToken = function(type, val) {
    this.end = this.pos;
    if (this.options.locations) { this.endLoc = this.curPosition(); }
    var prevType = this.type;
    this.type = type;
    this.value = val;

    this.updateContext(prevType);
  };

  // ### Token reading

  // This is the function that is called to fetch the next token. It
  // is somewhat obscure, because it works in character codes rather
  // than characters, and because operator parsing has been inlined
  // into it.
  //
  // All in the name of speed.
  //
  pp$9.readToken_dot = function() {
    var next = this.input.charCodeAt(this.pos + 1);
    if (next >= 48 && next <= 57) { return this.readNumber(true) }
    var next2 = this.input.charCodeAt(this.pos + 2);
    if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
      this.pos += 3;
      return this.finishToken(types.ellipsis)
    } else {
      ++this.pos;
      return this.finishToken(types.dot)
    }
  };

  pp$9.readToken_slash = function() { // '/'
    var next = this.input.charCodeAt(this.pos + 1);
    if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
    if (next === 61) { return this.finishOp(types.assign, 2) }
    return this.finishOp(types.slash, 1)
  };

  pp$9.readToken_mult_modulo_exp = function(code) { // '%*'
    var next = this.input.charCodeAt(this.pos + 1);
    var size = 1;
    var tokentype = code === 42 ? types.star : types.modulo;

    // exponentiation operator ** and **=
    if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) {
      ++size;
      tokentype = types.starstar;
      next = this.input.charCodeAt(this.pos + 2);
    }

    if (next === 61) { return this.finishOp(types.assign, size + 1) }
    return this.finishOp(tokentype, size)
  };

  pp$9.readToken_pipe_amp = function(code) { // '|&'
    var next = this.input.charCodeAt(this.pos + 1);
    if (next === code) {
      if (this.options.ecmaVersion >= 12) {
        var next2 = this.input.charCodeAt(this.pos + 2);
        if (next2 === 61) { return this.finishOp(types.assign, 3) }
      }
      return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2)
    }
    if (next === 61) { return this.finishOp(types.assign, 2) }
    return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1)
  };

  pp$9.readToken_caret = function() { // '^'
    var next = this.input.charCodeAt(this.pos + 1);
    if (next === 61) { return this.finishOp(types.assign, 2) }
    return this.finishOp(types.bitwiseXOR, 1)
  };

  pp$9.readToken_plus_min = function(code) { // '+-'
    var next = this.input.charCodeAt(this.pos + 1);
    if (next === code) {
      if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 &&
          (this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) {
        // A `-->` line comment
        this.skipLineComment(3);
        this.skipSpace();
        return this.nextToken()
      }
      return this.finishOp(types.incDec, 2)
    }
    if (next === 61) { return this.finishOp(types.assign, 2) }
    return this.finishOp(types.plusMin, 1)
  };

  pp$9.readToken_lt_gt = function(code) { // '<>'
    var next = this.input.charCodeAt(this.pos + 1);
    var size = 1;
    if (next === code) {
      size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
      if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) }
      return this.finishOp(types.bitShift, size)
    }
    if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 &&
        this.input.charCodeAt(this.pos + 3) === 45) {
      // `<!--`, an XML-style comment that should be interpreted as a line comment
      this.skipLineComment(4);
      this.skipSpace();
      return this.nextToken()
    }
    if (next === 61) { size = 2; }
    return this.finishOp(types.relational, size)
  };

  pp$9.readToken_eq_excl = function(code) { // '=!'
    var next = this.input.charCodeAt(this.pos + 1);
    if (next === 61) { return this.finishOp(types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
    if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
      this.pos += 2;
      return this.finishToken(types.arrow)
    }
    return this.finishOp(code === 61 ? types.eq : types.prefix, 1)
  };

  pp$9.readToken_question = function() { // '?'
    var ecmaVersion = this.options.ecmaVersion;
    if (ecmaVersion >= 11) {
      var next = this.input.charCodeAt(this.pos + 1);
      if (next === 46) {
        var next2 = this.input.charCodeAt(this.pos + 2);
        if (next2 < 48 || next2 > 57) { return this.finishOp(types.questionDot, 2) }
      }
      if (next === 63) {
        if (ecmaVersion >= 12) {
          var next2$1 = this.input.charCodeAt(this.pos + 2);
          if (next2$1 === 61) { return this.finishOp(types.assign, 3) }
        }
        return this.finishOp(types.coalesce, 2)
      }
    }
    return this.finishOp(types.question, 1)
  };

  pp$9.readToken_numberSign = function() { // '#'
    var ecmaVersion = this.options.ecmaVersion;
    var code = 35; // '#'
    if (ecmaVersion >= 13) {
      ++this.pos;
      code = this.fullCharCodeAtPos();
      if (isIdentifierStart(code, true) || code === 92 /* '\' */) {
        return this.finishToken(types.privateId, this.readWord1())
      }
    }

    this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
  };

  pp$9.getTokenFromCode = function(code) {
    switch (code) {
    // The interpretation of a dot depends on whether it is followed
    // by a digit or another two dots.
    case 46: // '.'
      return this.readToken_dot()

    // Punctuation tokens.
    case 40: ++this.pos; return this.finishToken(types.parenL)
    case 41: ++this.pos; return this.finishToken(types.parenR)
    case 59: ++this.pos; return this.finishToken(types.semi)
    case 44: ++this.pos; return this.finishToken(types.comma)
    case 91: ++this.pos; return this.finishToken(types.bracketL)
    case 93: ++this.pos; return this.finishToken(types.bracketR)
    case 123: ++this.pos; return this.finishToken(types.braceL)
    case 125: ++this.pos; return this.finishToken(types.braceR)
    case 58: ++this.pos; return this.finishToken(types.colon)

    case 96: // '`'
      if (this.options.ecmaVersion < 6) { break }
      ++this.pos;
      return this.finishToken(types.backQuote)

    case 48: // '0'
      var next = this.input.charCodeAt(this.pos + 1);
      if (next === 120 || next === 88) { return this.readRadixNumber(16) } // '0x', '0X' - hex number
      if (this.options.ecmaVersion >= 6) {
        if (next === 111 || next === 79) { return this.readRadixNumber(8) } // '0o', '0O' - octal number
        if (next === 98 || next === 66) { return this.readRadixNumber(2) } // '0b', '0B' - binary number
      }

    // Anything else beginning with a digit is an integer, octal
    // number, or float.
    case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9
      return this.readNumber(false)

    // Quotes produce strings.
    case 34: case 39: // '"', "'"
      return this.readString(code)

    // Operators are parsed inline in tiny state machines. '=' (61) is
    // often referred to. `finishOp` simply skips the amount of
    // characters it is given as second argument, and returns a token
    // of the type given by its first argument.

    case 47: // '/'
      return this.readToken_slash()

    case 37: case 42: // '%*'
      return this.readToken_mult_modulo_exp(code)

    case 124: case 38: // '|&'
      return this.readToken_pipe_amp(code)

    case 94: // '^'
      return this.readToken_caret()

    case 43: case 45: // '+-'
      return this.readToken_plus_min(code)

    case 60: case 62: // '<>'
      return this.readToken_lt_gt(code)

    case 61: case 33: // '=!'
      return this.readToken_eq_excl(code)

    case 63: // '?'
      return this.readToken_question()

    case 126: // '~'
      return this.finishOp(types.prefix, 1)

    case 35: // '#'
      return this.readToken_numberSign()
    }

    this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
  };

  pp$9.finishOp = function(type, size) {
    var str = this.input.slice(this.pos, this.pos + size);
    this.pos += size;
    return this.finishToken(type, str)
  };

  pp$9.readRegexp = function() {
    var escaped, inClass, start = this.pos;
    for (;;) {
      if (this.pos >= this.input.length) { this.raise(start, "Unterminated regular expression"); }
      var ch = this.input.charAt(this.pos);
      if (lineBreak.test(ch)) { this.raise(start, "Unterminated regular expression"); }
      if (!escaped) {
        if (ch === "[") { inClass = true; }
        else if (ch === "]" && inClass) { inClass = false; }
        else if (ch === "/" && !inClass) { break }
        escaped = ch === "\\";
      } else { escaped = false; }
      ++this.pos;
    }
    var pattern = this.input.slice(start, this.pos);
    ++this.pos;
    var flagsStart = this.pos;
    var flags = this.readWord1();
    if (this.containsEsc) { this.unexpected(flagsStart); }

    // Validate pattern
    var state = this.regexpState || (this.regexpState = new RegExpValidationState(this));
    state.reset(start, pattern, flags);
    this.validateRegExpFlags(state);
    this.validateRegExpPattern(state);

    // Create Literal#value property value.
    var value = null;
    try {
      value = new RegExp(pattern, flags);
    } catch (e) {
      // ESTree requires null if it failed to instantiate RegExp object.
      // https://github.com/estree/estree/blob/a27003adf4fd7bfad44de9cef372a2eacd527b1c/es5.md#regexpliteral
    }

    return this.finishToken(types.regexp, {pattern: pattern, flags: flags, value: value})
  };

  // Read an integer in the given radix. Return null if zero digits
  // were read, the integer value otherwise. When `len` is given, this
  // will return `null` unless the integer has exactly `len` digits.

  pp$9.readInt = function(radix, len, maybeLegacyOctalNumericLiteral) {
    // `len` is used for character escape sequences. In that case, disallow separators.
    var allowSeparators = this.options.ecmaVersion >= 12 && len === undefined;

    // `maybeLegacyOctalNumericLiteral` is true if it doesn't have prefix (0x,0o,0b)
    // and isn't fraction part nor exponent part. In that case, if the first digit
    // is zero then disallow separators.
    var isLegacyOctalNumericLiteral = maybeLegacyOctalNumericLiteral && this.input.charCodeAt(this.pos) === 48;

    var start = this.pos, total = 0, lastCode = 0;
    for (var i = 0, e = len == null ? Infinity : len; i < e; ++i, ++this.pos) {
      var code = this.input.charCodeAt(this.pos), val = (void 0);

      if (allowSeparators && code === 95) {
        if (isLegacyOctalNumericLiteral) { this.raiseRecoverable(this.pos, "Numeric separator is not allowed in legacy octal numeric literals"); }
        if (lastCode === 95) { this.raiseRecoverable(this.pos, "Numeric separator must be exactly one underscore"); }
        if (i === 0) { this.raiseRecoverable(this.pos, "Numeric separator is not allowed at the first of digits"); }
        lastCode = code;
        continue
      }

      if (code >= 97) { val = code - 97 + 10; } // a
      else if (code >= 65) { val = code - 65 + 10; } // A
      else if (code >= 48 && code <= 57) { val = code - 48; } // 0-9
      else { val = Infinity; }
      if (val >= radix) { break }
      lastCode = code;
      total = total * radix + val;
    }

    if (allowSeparators && lastCode === 95) { this.raiseRecoverable(this.pos - 1, "Numeric separator is not allowed at the last of digits"); }
    if (this.pos === start || len != null && this.pos - start !== len) { return null }

    return total
  };

  function stringToNumber(str, isLegacyOctalNumericLiteral) {
    if (isLegacyOctalNumericLiteral) {
      return parseInt(str, 8)
    }

    // `parseFloat(value)` stops parsing at the first numeric separator then returns a wrong value.
    return parseFloat(str.replace(/_/g, ""))
  }

  function stringToBigInt(str) {
    if (typeof BigInt !== "function") {
      return null
    }

    // `BigInt(value)` throws syntax error if the string contains numeric separators.
    return BigInt(str.replace(/_/g, ""))
  }

  pp$9.readRadixNumber = function(radix) {
    var start = this.pos;
    this.pos += 2; // 0x
    var val = this.readInt(radix);
    if (val == null) { this.raise(this.start + 2, "Expected number in radix " + radix); }
    if (this.options.ecmaVersion >= 11 && this.input.charCodeAt(this.pos) === 110) {
      val = stringToBigInt(this.input.slice(start, this.pos));
      ++this.pos;
    } else if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
    return this.finishToken(types.num, val)
  };

  // Read an integer, octal integer, or floating-point number.

  pp$9.readNumber = function(startsWithDot) {
    var start = this.pos;
    if (!startsWithDot && this.readInt(10, undefined, true) === null) { this.raise(start, "Invalid number"); }
    var octal = this.pos - start >= 2 && this.input.charCodeAt(start) === 48;
    if (octal && this.strict) { this.raise(start, "Invalid number"); }
    var next = this.input.charCodeAt(this.pos);
    if (!octal && !startsWithDot && this.options.ecmaVersion >= 11 && next === 110) {
      var val$1 = stringToBigInt(this.input.slice(start, this.pos));
      ++this.pos;
      if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
      return this.finishToken(types.num, val$1)
    }
    if (octal && /[89]/.test(this.input.slice(start, this.pos))) { octal = false; }
    if (next === 46 && !octal) { // '.'
      ++this.pos;
      this.readInt(10);
      next = this.input.charCodeAt(this.pos);
    }
    if ((next === 69 || next === 101) && !octal) { // 'eE'
      next = this.input.charCodeAt(++this.pos);
      if (next === 43 || next === 45) { ++this.pos; } // '+-'
      if (this.readInt(10) === null) { this.raise(start, "Invalid number"); }
    }
    if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }

    var val = stringToNumber(this.input.slice(start, this.pos), octal);
    return this.finishToken(types.num, val)
  };

  // Read a string value, interpreting backslash-escapes.

  pp$9.readCodePoint = function() {
    var ch = this.input.charCodeAt(this.pos), code;

    if (ch === 123) { // '{'
      if (this.options.ecmaVersion < 6) { this.unexpected(); }
      var codePos = ++this.pos;
      code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
      ++this.pos;
      if (code > 0x10FFFF) { this.invalidStringToken(codePos, "Code point out of bounds"); }
    } else {
      code = this.readHexChar(4);
    }
    return code
  };

  function codePointToString$1(code) {
    // UTF-16 Decoding
    if (code <= 0xFFFF) { return String.fromCharCode(code) }
    code -= 0x10000;
    return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
  }

  pp$9.readString = function(quote) {
    var out = "", chunkStart = ++this.pos;
    for (;;) {
      if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated string constant"); }
      var ch = this.input.charCodeAt(this.pos);
      if (ch === quote) { break }
      if (ch === 92) { // '\'
        out += this.input.slice(chunkStart, this.pos);
        out += this.readEscapedChar(false);
        chunkStart = this.pos;
      } else if (ch === 0x2028 || ch === 0x2029) {
        if (this.options.ecmaVersion < 10) { this.raise(this.start, "Unterminated string constant"); }
        ++this.pos;
        if (this.options.locations) {
          this.curLine++;
          this.lineStart = this.pos;
        }
      } else {
        if (isNewLine(ch)) { this.raise(this.start, "Unterminated string constant"); }
        ++this.pos;
      }
    }
    out += this.input.slice(chunkStart, this.pos++);
    return this.finishToken(types.string, out)
  };

  // Reads template string tokens.

  var INVALID_TEMPLATE_ESCAPE_ERROR = {};

  pp$9.tryReadTemplateToken = function() {
    this.inTemplateElement = true;
    try {
      this.readTmplToken();
    } catch (err) {
      if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {
        this.readInvalidTemplateToken();
      } else {
        throw err
      }
    }

    this.inTemplateElement = false;
  };

  pp$9.invalidStringToken = function(position, message) {
    if (this.inTemplateElement && this.options.ecmaVersion >= 9) {
      throw INVALID_TEMPLATE_ESCAPE_ERROR
    } else {
      this.raise(position, message);
    }
  };

  pp$9.readTmplToken = function() {
    var out = "", chunkStart = this.pos;
    for (;;) {
      if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated template"); }
      var ch = this.input.charCodeAt(this.pos);
      if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { // '`', '${'
        if (this.pos === this.start && (this.type === types.template || this.type === types.invalidTemplate)) {
          if (ch === 36) {
            this.pos += 2;
            return this.finishToken(types.dollarBraceL)
          } else {
            ++this.pos;
            return this.finishToken(types.backQuote)
          }
        }
        out += this.input.slice(chunkStart, this.pos);
        return this.finishToken(types.template, out)
      }
      if (ch === 92) { // '\'
        out += this.input.slice(chunkStart, this.pos);
        out += this.readEscapedChar(true);
        chunkStart = this.pos;
      } else if (isNewLine(ch)) {
        out += this.input.slice(chunkStart, this.pos);
        ++this.pos;
        switch (ch) {
        case 13:
          if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; }
        case 10:
          out += "\n";
          break
        default:
          out += String.fromCharCode(ch);
          break
        }
        if (this.options.locations) {
          ++this.curLine;
          this.lineStart = this.pos;
        }
        chunkStart = this.pos;
      } else {
        ++this.pos;
      }
    }
  };

  // Reads a template token to search for the end, without validating any escape sequences
  pp$9.readInvalidTemplateToken = function() {
    for (; this.pos < this.input.length; this.pos++) {
      switch (this.input[this.pos]) {
      case "\\":
        ++this.pos;
        break

      case "$":
        if (this.input[this.pos + 1] !== "{") {
          break
        }
      // falls through

      case "`":
        return this.finishToken(types.invalidTemplate, this.input.slice(this.start, this.pos))

      // no default
      }
    }
    this.raise(this.start, "Unterminated template");
  };

  // Used to read escaped characters

  pp$9.readEscapedChar = function(inTemplate) {
    var ch = this.input.charCodeAt(++this.pos);
    ++this.pos;
    switch (ch) {
    case 110: return "\n" // 'n' -> '\n'
    case 114: return "\r" // 'r' -> '\r'
    case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
    case 117: return codePointToString$1(this.readCodePoint()) // 'u'
    case 116: return "\t" // 't' -> '\t'
    case 98: return "\b" // 'b' -> '\b'
    case 118: return "\u000b" // 'v' -> '\u000b'
    case 102: return "\f" // 'f' -> '\f'
    case 13: if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; } // '\r\n'
    case 10: // ' \n'
      if (this.options.locations) { this.lineStart = this.pos; ++this.curLine; }
      return ""
    case 56:
    case 57:
      if (this.strict) {
        this.invalidStringToken(
          this.pos - 1,
          "Invalid escape sequence"
        );
      }
      if (inTemplate) {
        var codePos = this.pos - 1;

        this.invalidStringToken(
          codePos,
          "Invalid escape sequence in template string"
        );

        return null
      }
    default:
      if (ch >= 48 && ch <= 55) {
        var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];
        var octal = parseInt(octalStr, 8);
        if (octal > 255) {
          octalStr = octalStr.slice(0, -1);
          octal = parseInt(octalStr, 8);
        }
        this.pos += octalStr.length - 1;
        ch = this.input.charCodeAt(this.pos);
        if ((octalStr !== "0" || ch === 56 || ch === 57) && (this.strict || inTemplate)) {
          this.invalidStringToken(
            this.pos - 1 - octalStr.length,
            inTemplate
              ? "Octal literal in template string"
              : "Octal literal in strict mode"
          );
        }
        return String.fromCharCode(octal)
      }
      if (isNewLine(ch)) {
        // Unicode new line characters after \ get removed from output in both
        // template literals and strings
        return ""
      }
      return String.fromCharCode(ch)
    }
  };

  // Used to read character escape sequences ('\x', '\u', '\U').

  pp$9.readHexChar = function(len) {
    var codePos = this.pos;
    var n = this.readInt(16, len);
    if (n === null) { this.invalidStringToken(codePos, "Bad character escape sequence"); }
    return n
  };

  // Read an identifier, and return it as a string. Sets `this.containsEsc`
  // to whether the word contained a '\u' escape.
  //
  // Incrementally adds only escaped chars, adding other chunks as-is
  // as a micro-optimization.

  pp$9.readWord1 = function() {
    this.containsEsc = false;
    var word = "", first = true, chunkStart = this.pos;
    var astral = this.options.ecmaVersion >= 6;
    while (this.pos < this.input.length) {
      var ch = this.fullCharCodeAtPos();
      if (isIdentifierChar(ch, astral)) {
        this.pos += ch <= 0xffff ? 1 : 2;
      } else if (ch === 92) { // "\"
        this.containsEsc = true;
        word += this.input.slice(chunkStart, this.pos);
        var escStart = this.pos;
        if (this.input.charCodeAt(++this.pos) !== 117) // "u"
          { this.invalidStringToken(this.pos, "Expecting Unicode escape sequence \\uXXXX"); }
        ++this.pos;
        var esc = this.readCodePoint();
        if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
          { this.invalidStringToken(escStart, "Invalid Unicode escape"); }
        word += codePointToString$1(esc);
        chunkStart = this.pos;
      } else {
        break
      }
      first = false;
    }
    return word + this.input.slice(chunkStart, this.pos)
  };

  // Read an identifier or keyword token. Will check for reserved
  // words when necessary.

  pp$9.readWord = function() {
    var word = this.readWord1();
    var type = types.name;
    if (this.keywords.test(word)) {
      type = keywords$1[word];
    }
    return this.finishToken(type, word)
  };

  // Acorn is a tiny, fast JavaScript parser written in JavaScript.

  var version = "8.5.0";

  Parser.acorn = {
    Parser: Parser,
    version: version,
    defaultOptions: defaultOptions,
    Position: Position,
    SourceLocation: SourceLocation,
    getLineInfo: getLineInfo,
    Node: Node,
    TokenType: TokenType,
    tokTypes: types,
    keywordTypes: keywords$1,
    TokContext: TokContext,
    tokContexts: types$1,
    isIdentifierChar: isIdentifierChar,
    isIdentifierStart: isIdentifierStart,
    Token: Token,
    isNewLine: isNewLine,
    lineBreak: lineBreak,
    lineBreakG: lineBreakG,
    nonASCIIwhitespace: nonASCIIwhitespace
  };

  // The main exported interface (under `self.acorn` when in the
  // browser) is a `parse` function that takes a code string and
  // returns an abstract syntax tree as specified by [Mozilla parser
  // API][api].
  //
  // [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API

  function parse(input, options) {
    return Parser.parse(input, options)
  }

  // This function tries to parse a single expression at a given
  // offset in a string. Useful for parsing mixed-language formats
  // that embed JavaScript expressions.

  function parseExpressionAt(input, pos, options) {
    return Parser.parseExpressionAt(input, pos, options)
  }

  // Acorn is organized as a tokenizer and a recursive-descent parser.
  // The `tokenizer` export provides an interface to the tokenizer.

  function tokenizer(input, options) {
    return Parser.tokenizer(input, options)
  }

  exports.Node = Node;
  exports.Parser = Parser;
  exports.Position = Position;
  exports.SourceLocation = SourceLocation;
  exports.TokContext = TokContext;
  exports.Token = Token;
  exports.TokenType = TokenType;
  exports.defaultOptions = defaultOptions;
  exports.getLineInfo = getLineInfo;
  exports.isIdentifierChar = isIdentifierChar;
  exports.isIdentifierStart = isIdentifierStart;
  exports.isNewLine = isNewLine;
  exports.keywordTypes = keywords$1;
  exports.lineBreak = lineBreak;
  exports.lineBreakG = lineBreakG;
  exports.nonASCIIwhitespace = nonASCIIwhitespace;
  exports.parse = parse;
  exports.parseExpressionAt = parseExpressionAt;
  exports.tokContexts = types$1;
  exports.tokTypes = types;
  exports.tokenizer = tokenizer;
  exports.version = version;

  Object.defineProperty(exports, '__esModule', { value: true });

})));
}(acorn, acorn.exports));

const getPrototype = Object.getPrototypeOf || (o => o.__proto__);

const getAcorn = Parser => {
  if (Parser.acorn) return Parser.acorn

  const acorn$1 = acorn.exports;

  if (acorn$1.version.indexOf("6.") != 0 && acorn$1.version.indexOf("6.0.") == 0 && acorn$1.version.indexOf("7.") != 0) {
    throw new Error(`acorn-private-class-elements requires acorn@^6.1.0 or acorn@7.0.0, not ${acorn$1.version}`)
  }

  // Make sure `Parser` comes from the same acorn as we `require`d,
  // otherwise the comparisons fail.
  for (let cur = Parser; cur && cur !== acorn$1.Parser; cur = getPrototype(cur)) {
    if (cur !== acorn$1.Parser) {
      throw new Error("acorn-private-class-elements does not support mixing different acorn copies")
    }
  }
  return acorn$1
};

var acornPrivateClassElements = function(Parser) {
  // Only load this plugin once.
  if (Parser.prototype.parsePrivateName) {
    return Parser
  }

  const acorn = getAcorn(Parser);

  Parser = class extends Parser {
    _branch() {
      this.__branch = this.__branch || new Parser({ecmaVersion: this.options.ecmaVersion}, this.input);
      this.__branch.end = this.end;
      this.__branch.pos = this.pos;
      this.__branch.type = this.type;
      this.__branch.value = this.value;
      this.__branch.containsEsc = this.containsEsc;
      return this.__branch
    }

    parsePrivateClassElementName(element) {
      element.computed = false;
      element.key = this.parsePrivateName();
      if (element.key.name == "constructor") this.raise(element.key.start, "Classes may not have a private element named constructor");
      const accept = {get: "set", set: "get"}[element.kind];
      const privateBoundNames = this._privateBoundNames;
      if (Object.prototype.hasOwnProperty.call(privateBoundNames, element.key.name) && privateBoundNames[element.key.name] !== accept) {
        this.raise(element.start, "Duplicate private element");
      }
      privateBoundNames[element.key.name] = element.kind || true;
      delete this._unresolvedPrivateNames[element.key.name];
      return element.key
    }

    parsePrivateName() {
      const node = this.startNode();
      node.name = this.value;
      this.next();
      this.finishNode(node, "PrivateIdentifier");
      if (this.options.allowReserved == "never") this.checkUnreserved(node);
      return node
    }

    // Parse # token
    getTokenFromCode(code) {
      if (code === 35) {
        ++this.pos;
        const word = this.readWord1();
        return this.finishToken(this.privateIdentifierToken, word)
      }
      return super.getTokenFromCode(code)
    }

    // Manage stacks and check for undeclared private names
    parseClass(node, isStatement) {
      const oldOuterPrivateBoundNames = this._outerPrivateBoundNames;
      this._outerPrivateBoundNames = this._privateBoundNames;
      this._privateBoundNames = Object.create(this._privateBoundNames || null);
      const oldOuterUnresolvedPrivateNames = this._outerUnresolvedPrivateNames;
      this._outerUnresolvedPrivateNames = this._unresolvedPrivateNames;
      this._unresolvedPrivateNames = Object.create(null);

      const _return = super.parseClass(node, isStatement);

      const unresolvedPrivateNames = this._unresolvedPrivateNames;
      this._privateBoundNames = this._outerPrivateBoundNames;
      this._outerPrivateBoundNames = oldOuterPrivateBoundNames;
      this._unresolvedPrivateNames = this._outerUnresolvedPrivateNames;
      this._outerUnresolvedPrivateNames = oldOuterUnresolvedPrivateNames;
      if (!this._unresolvedPrivateNames) {
        const names = Object.keys(unresolvedPrivateNames);
        if (names.length) {
          names.sort((n1, n2) => unresolvedPrivateNames[n1] - unresolvedPrivateNames[n2]);
          this.raise(unresolvedPrivateNames[names[0]], "Usage of undeclared private name");
        }
      } else Object.assign(this._unresolvedPrivateNames, unresolvedPrivateNames);
      return _return
    }

    // Class heritage is evaluated with outer private environment
    parseClassSuper(node) {
      const privateBoundNames = this._privateBoundNames;
      this._privateBoundNames = this._outerPrivateBoundNames;
      const unresolvedPrivateNames = this._unresolvedPrivateNames;
      this._unresolvedPrivateNames = this._outerUnresolvedPrivateNames;
      const _return = super.parseClassSuper(node);
      this._privateBoundNames = privateBoundNames;
      this._unresolvedPrivateNames = unresolvedPrivateNames;
      return _return
    }

    // Parse private element access
    parseSubscript(base, startPos, startLoc, _noCalls, _maybeAsyncArrow, _optionalChained) {
      const optionalSupported = this.options.ecmaVersion >= 11 && acorn.tokTypes.questionDot;
      const branch = this._branch();
      if (!(
        (branch.eat(acorn.tokTypes.dot) || (optionalSupported && branch.eat(acorn.tokTypes.questionDot))) &&
        branch.type == this.privateIdentifierToken
      )) {
        return super.parseSubscript.apply(this, arguments)
      }
      let optional = false;
      if (!this.eat(acorn.tokTypes.dot)) {
        this.expect(acorn.tokTypes.questionDot);
        optional = true;
      }
      let node = this.startNodeAt(startPos, startLoc);
      node.object = base;
      node.computed = false;
      if (optionalSupported) {
        node.optional = optional;
      }
      if (this.type == this.privateIdentifierToken) {
        if (base.type == "Super") {
          this.raise(this.start, "Cannot access private element on super");
        }
        node.property = this.parsePrivateName();
        if (!this._privateBoundNames || !this._privateBoundNames[node.property.name]) {
          if (!this._unresolvedPrivateNames) {
            this.raise(node.property.start, "Usage of undeclared private name");
          }
          this._unresolvedPrivateNames[node.property.name] = node.property.start;
        }
      } else {
        node.property = this.parseIdent(true);
      }
      return this.finishNode(node, "MemberExpression")
    }

    // Prohibit delete of private class elements
    parseMaybeUnary(refDestructuringErrors, sawUnary) {
      const _return = super.parseMaybeUnary(refDestructuringErrors, sawUnary);
      if (_return.operator == "delete") {
        if (_return.argument.type == "MemberExpression" && _return.argument.property.type == "PrivateIdentifier") {
          this.raise(_return.start, "Private elements may not be deleted");
        }
      }
      return _return
    }
  };
  Parser.prototype.privateIdentifierToken = new acorn.TokenType("privateIdentifier");
  return Parser
};

const privateClassElements$1 = acornPrivateClassElements;

var acornClassFields = function(Parser) {
  const acorn$1 = Parser.acorn || acorn.exports;
  const tt = acorn$1.tokTypes;

  Parser = privateClassElements$1(Parser);
  return class extends Parser {
    _maybeParseFieldValue(field) {
      if (this.eat(tt.eq)) {
        const oldInFieldValue = this._inFieldValue;
        this._inFieldValue = true;
        if (this.type === tt.name && this.value === "await" && (this.inAsync || this.options.allowAwaitOutsideFunction)) {
          field.value = this.parseAwait();
        } else field.value = this.parseExpression();
        this._inFieldValue = oldInFieldValue;
      } else field.value = null;
    }

    // Parse fields
    parseClassElement(_constructorAllowsSuper) {
      if (this.options.ecmaVersion >= 8 && (this.type == tt.name || this.type.keyword || this.type == this.privateIdentifierToken || this.type == tt.bracketL || this.type == tt.string || this.type == tt.num)) {
        const branch = this._branch();
        if (branch.type == tt.bracketL) {
          let count = 0;
          do {
            if (branch.eat(tt.bracketL)) ++count;
            else if (branch.eat(tt.bracketR)) --count;
            else branch.next();
          } while (count > 0)
        } else branch.next(true);
        let isField = branch.type == tt.eq || branch.type == tt.semi;
        if (!isField && branch.canInsertSemicolon()) {
          isField = branch.type != tt.parenL;
        }
        if (isField) {
          const node = this.startNode();
          if (this.type == this.privateIdentifierToken) {
            this.parsePrivateClassElementName(node);
          } else {
            this.parsePropertyName(node);
          }
          if ((node.key.type === "Identifier" && node.key.name === "constructor") ||
              (node.key.type === "Literal" && node.key.value === "constructor")) {
            this.raise(node.key.start, "Classes may not have a field called constructor");
          }
          this.enterScope(64 | 2 | 1); // See acorn's scopeflags.js
          this._maybeParseFieldValue(node);
          this.exitScope();
          this.finishNode(node, "PropertyDefinition");
          this.semicolon();
          return node
        }
      }

      return super.parseClassElement.apply(this, arguments)
    }

    // Prohibit arguments in class field initializers
    parseIdent(liberal, isBinding) {
      const ident = super.parseIdent(liberal, isBinding);
      if (this._inFieldValue && ident.name == "arguments") this.raise(ident.start, "A class field initializer may not contain arguments");
      return ident
    }
  }
};

const privateClassElements = acornPrivateClassElements;

var acornStaticClassFeatures = function(Parser) {
  const ExtendedParser = privateClassElements(Parser);

  const acorn$1 = Parser.acorn || acorn.exports;
  const tt = acorn$1.tokTypes;

  return class extends ExtendedParser {
    _maybeParseFieldValue(field) {
      if (this.eat(tt.eq)) {
        const oldInFieldValue = this._inStaticFieldScope;
        this._inStaticFieldScope = this.currentThisScope();
        field.value = this.parseExpression();
        this._inStaticFieldScope = oldInFieldValue;
      } else field.value = null;
    }

    // Parse fields
    parseClassElement(_constructorAllowsSuper) {
      if (this.options.ecmaVersion < 8 || !this.isContextual("static")) {
        return super.parseClassElement.apply(this, arguments)
      }

      const branch = this._branch();
      branch.next();
      if ([tt.name, tt.bracketL, tt.string, tt.num, this.privateIdentifierToken].indexOf(branch.type) == -1 && !branch.type.keyword) {
        return super.parseClassElement.apply(this, arguments)
      }
      if (branch.type == tt.bracketL) {
        let count = 0;
        do {
          if (branch.eat(tt.bracketL)) ++count;
          else if (branch.eat(tt.bracketR)) --count;
          else branch.next();
        } while (count > 0)
      } else branch.next();
      if (branch.type != tt.eq && !branch.canInsertSemicolon() && branch.type != tt.semi) {
        return super.parseClassElement.apply(this, arguments)
      }

      const node = this.startNode();
      node.static = this.eatContextual("static");
      if (this.type == this.privateIdentifierToken) {
        this.parsePrivateClassElementName(node);
      } else {
        this.parsePropertyName(node);
      }
      if ((node.key.type === "Identifier" && node.key.name === "constructor") ||
          (node.key.type === "Literal" && !node.computed && node.key.value === "constructor")) {
        this.raise(node.key.start, "Classes may not have a field called constructor");
      }
      if ((node.key.name || node.key.value) === "prototype" && !node.computed) {
        this.raise(node.key.start, "Classes may not have a static property named prototype");
      }

      this.enterScope(64 | 2 | 1); // See acorn's scopeflags.js
      this._maybeParseFieldValue(node);
      this.exitScope();
      this.finishNode(node, "PropertyDefinition");
      this.semicolon();
      return node
    }

    // Parse private static methods
    parsePropertyName(prop) {
      if (prop.static && this.type == this.privateIdentifierToken) {
        this.parsePrivateClassElementName(prop);
      } else {
        super.parsePropertyName(prop);
      }
    }

    // Prohibit arguments in class field initializers
    parseIdent(liberal, isBinding) {
      const ident = super.parseIdent(liberal, isBinding);
      if (this._inStaticFieldScope && this.currentThisScope() === this._inStaticFieldScope && ident.name == "arguments") {
        this.raise(ident.start, "A static class field initializer may not contain arguments");
      }
      return ident
    }
  }
};

var ansiRegex$1 = ({onlyFirst = false} = {}) => {
	const pattern = [
		'[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
		'(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))'
	].join('|');

	return new RegExp(pattern, onlyFirst ? undefined : 'g');
};

const ansiRegex = ansiRegex$1;

var stripAnsi = string => typeof string === 'string' ? string.replace(ansiRegex(), '') : string;

function prepareError(err) {
    // only copy the information we need and avoid serializing unnecessary
    // properties, since some errors may attach full objects (e.g. PostCSS)
    return {
        message: stripAnsi(err.message),
        stack: stripAnsi(cleanStack(err.stack || '')),
        id: err.id,
        frame: stripAnsi(err.frame || ''),
        plugin: err.plugin,
        pluginCode: err.pluginCode,
        loc: err.loc
    };
}
function buildErrorMessage(err, args = [], includeStack = true) {
    if (err.plugin)
        args.push(`  Plugin: ${source.magenta(err.plugin)}`);
    if (err.id)
        args.push(`  File: ${source.cyan(err.id)}`);
    if (err.frame)
        args.push(source.yellow(pad$1(err.frame)));
    if (includeStack && err.stack)
        args.push(pad$1(cleanStack(err.stack)));
    return args.join('\n');
}
function cleanStack(stack) {
    return stack
        .split(/\n/g)
        .filter((l) => /^\s*at/.test(l))
        .join('\n');
}
function logError(server, err) {
    const msg = buildErrorMessage(err, [
        source.red(`Internal server error: ${err.message}`)
    ]);
    server.config.logger.error(msg, {
        clear: true,
        timestamp: true,
        error: err
    });
    server.ws.send({
        type: 'error',
        err: prepareError(err)
    });
}
function errorMiddleware(server, allowNext = false) {
    // note the 4 args must be kept for connect to treat this as error middleware
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return function viteErrorMiddleware(err, _req, res, next) {
        logError(server, err);
        if (allowNext) {
            next();
        }
        else {
            res.statusCode = 500;
            res.end();
        }
    };
}

/**
 * This file is refactored into TypeScript based on
 * https://github.com/preactjs/wmr/blob/main/packages/wmr/src/lib/rollup-plugin-container.js
 */
let parser = Parser.extend(acornClassFields, acornStaticClassFeatures);
async function createPluginContainer({ plugins, logger, root, build: { rollupOptions } }, watcher) {
    const isDebug = process.env.DEBUG;
    const seenResolves = {};
    const debugResolve = createDebugger('vite:resolve');
    const debugPluginResolve = createDebugger('vite:plugin-resolve', {
        onlyWhenFocused: 'vite:plugin'
    });
    const debugPluginTransform = createDebugger('vite:plugin-transform', {
        onlyWhenFocused: 'vite:plugin'
    });
    // ---------------------------------------------------------------------------
    const MODULES = new Map();
    const watchFiles = new Set();
    // get rollup version
    const rollupPkgPath = path$t.resolve(require.resolve('rollup'), '../../package.json');
    const minimalContext = {
        meta: {
            rollupVersion: JSON.parse(fs__default.readFileSync(rollupPkgPath, 'utf-8'))
                .version,
            watchMode: true
        }
    };
    function warnIncompatibleMethod(method, plugin) {
        logger.warn(source.cyan(`[plugin:${plugin}] `) +
            source.yellow(`context method ${source.bold(`${method}()`)} is not supported in serve mode. This plugin is likely not vite-compatible.`));
    }
    // we should create a new context for each async hook pipeline so that the
    // active plugin in that pipeline can be tracked in a concurrency-safe manner.
    // using a class to make creating new contexts more efficient
    class Context {
        constructor(initialPlugin) {
            this.meta = minimalContext.meta;
            this.ssr = false;
            this._activeId = null;
            this._activeCode = null;
            this._addedImports = null;
            this._activePlugin = initialPlugin || null;
        }
        parse(code, opts = {}) {
            return parser.parse(code, {
                sourceType: 'module',
                ecmaVersion: 'latest',
                locations: true,
                ...opts
            });
        }
        async resolve(id, importer, options) {
            let skips;
            if ((options === null || options === void 0 ? void 0 : options.skipSelf) && this._activePlugin) {
                skips = new Set(this._resolveSkips);
                skips.add(this._activePlugin);
            }
            let out = await container.resolveId(id, importer, skips, this.ssr);
            if (typeof out === 'string')
                out = { id: out };
            return out;
        }
        getModuleInfo(id) {
            let mod = MODULES.get(id);
            if (mod)
                return mod.info;
            mod = {
                /** @type {import('rollup').ModuleInfo} */
                // @ts-ignore-next
                info: {}
            };
            MODULES.set(id, mod);
            return mod.info;
        }
        getModuleIds() {
            return MODULES.keys();
        }
        addWatchFile(id) {
            watchFiles.add(id);
            (this._addedImports || (this._addedImports = new Set())).add(id);
            if (watcher)
                ensureWatchedFile(watcher, id, root);
        }
        getWatchFiles() {
            return [...watchFiles];
        }
        emitFile(assetOrFile) {
            warnIncompatibleMethod(`emitFile`, this._activePlugin.name);
            return '';
        }
        setAssetSource() {
            warnIncompatibleMethod(`setAssetSource`, this._activePlugin.name);
        }
        getFileName() {
            warnIncompatibleMethod(`getFileName`, this._activePlugin.name);
            return '';
        }
        warn(e, position) {
            const err = formatError(e, position, this);
            const msg = buildErrorMessage(err, [source.yellow(`warning: ${err.message}`)], false);
            logger.warn(msg, {
                clear: true,
                timestamp: true
            });
        }
        error(e, position) {
            // error thrown here is caught by the transform middleware and passed on
            // the the error middleware.
            throw formatError(e, position, this);
        }
    }
    function formatError(e, position, ctx) {
        const err = (typeof e === 'string' ? new Error(e) : e);
        if (ctx._activePlugin)
            err.plugin = ctx._activePlugin.name;
        if (ctx._activeId && !err.id)
            err.id = ctx._activeId;
        if (ctx._activeCode) {
            err.pluginCode = ctx._activeCode;
            const pos = position != null
                ? position
                : err.pos != null
                    ? err.pos
                    : // some rollup plugins, e.g. json, sets position instead of pos
                        err.position;
            if (pos != null) {
                let errLocation;
                try {
                    errLocation = numberToPos(ctx._activeCode, pos);
                }
                catch (err2) {
                    logger.error(source.red(`Error in error handler:\n${err2.stack || err2.message}\n`), 
                    // print extra newline to separate the two errors
                    { error: err2 });
                    throw err;
                }
                err.loc = err.loc || {
                    file: err.id,
                    ...errLocation
                };
                err.frame = err.frame || generateCodeFrame(ctx._activeCode, pos);
            }
            else if (err.loc) {
                // css preprocessors may report errors in an included file
                if (!err.frame) {
                    let code = ctx._activeCode;
                    if (err.loc.file) {
                        err.id = normalizePath$4(err.loc.file);
                        try {
                            code = fs__default.readFileSync(err.loc.file, 'utf-8');
                        }
                        catch { }
                    }
                    err.frame = generateCodeFrame(code, err.loc);
                }
            }
            else if (err.line && err.column) {
                err.loc = {
                    file: err.id,
                    line: err.line,
                    column: err.column
                };
                err.frame = err.frame || generateCodeFrame(ctx._activeCode, err.loc);
            }
        }
        return err;
    }
    class TransformContext extends Context {
        constructor(filename, code, inMap) {
            super();
            this.originalSourcemap = null;
            this.sourcemapChain = [];
            this.combinedMap = null;
            this.filename = filename;
            this.originalCode = code;
            if (inMap) {
                this.sourcemapChain.push(inMap);
            }
        }
        _getCombinedSourcemap(createIfNull = false) {
            let combinedMap = this.combinedMap;
            for (let m of this.sourcemapChain) {
                if (typeof m === 'string')
                    m = JSON.parse(m);
                if (!('version' in m)) {
                    // empty, nullified source map
                    combinedMap = this.combinedMap = null;
                    this.sourcemapChain.length = 0;
                    break;
                }
                if (!combinedMap) {
                    combinedMap = m;
                }
                else {
                    combinedMap = combineSourcemaps(this.filename, [
                        {
                            ...m,
                            sourcesContent: combinedMap.sourcesContent
                        },
                        combinedMap
                    ]);
                }
            }
            if (!combinedMap) {
                return createIfNull
                    ? new MagicString(this.originalCode).generateMap({
                        includeContent: true,
                        hires: true,
                        source: this.filename
                    })
                    : null;
            }
            if (combinedMap !== this.combinedMap) {
                this.combinedMap = combinedMap;
                this.sourcemapChain.length = 0;
            }
            return this.combinedMap;
        }
        getCombinedSourcemap() {
            return this._getCombinedSourcemap(true);
        }
    }
    let closed = false;
    const container = {
        options: await (async () => {
            let options = rollupOptions;
            for (const plugin of plugins) {
                if (!plugin.options)
                    continue;
                options =
                    (await plugin.options.call(minimalContext, options)) || options;
            }
            if (options.acornInjectPlugins) {
                parser = Parser.extend(...[acornClassFields, acornStaticClassFeatures].concat(options.acornInjectPlugins));
            }
            return {
                acorn: acorn$1,
                acornInjectPlugins: [],
                ...options
            };
        })(),
        async buildStart() {
            await Promise.all(plugins.map((plugin) => {
                if (plugin.buildStart) {
                    return plugin.buildStart.call(new Context(plugin), container.options);
                }
            }));
        },
        async resolveId(rawId, importer = path$t.join(root, 'index.html'), skips, ssr) {
            const ctx = new Context();
            ctx.ssr = !!ssr;
            ctx._resolveSkips = skips;
            const resolveStart = isDebug ? perf_hooks.performance.now() : 0;
            let id = null;
            const partial = {};
            for (const plugin of plugins) {
                if (!plugin.resolveId)
                    continue;
                if (skips === null || skips === void 0 ? void 0 : skips.has(plugin))
                    continue;
                ctx._activePlugin = plugin;
                const pluginResolveStart = isDebug ? perf_hooks.performance.now() : 0;
                const result = await plugin.resolveId.call(ctx, rawId, importer, {}, ssr);
                if (!result)
                    continue;
                if (typeof result === 'string') {
                    id = result;
                }
                else {
                    id = result.id;
                    Object.assign(partial, result);
                }
                isDebug &&
                    debugPluginResolve(timeFrom(pluginResolveStart), plugin.name, prettifyUrl(id, root));
                // resolveId() is hookFirst - first non-null result is returned.
                break;
            }
            if (isDebug && rawId !== id && !rawId.startsWith(FS_PREFIX)) {
                const key = rawId + id;
                // avoid spamming
                if (!seenResolves[key]) {
                    seenResolves[key] = true;
                    debugResolve(`${timeFrom(resolveStart)} ${source.cyan(rawId)} -> ${source.dim(id)}`);
                }
            }
            if (id) {
                partial.id = isExternalUrl(id) ? id : normalizePath$4(id);
                return partial;
            }
            else {
                return null;
            }
        },
        async load(id, ssr) {
            const ctx = new Context();
            ctx.ssr = !!ssr;
            for (const plugin of plugins) {
                if (!plugin.load)
                    continue;
                ctx._activePlugin = plugin;
                const result = await plugin.load.call(ctx, id, ssr);
                if (result != null) {
                    return result;
                }
            }
            return null;
        },
        async transform(code, id, inMap, ssr) {
            const ctx = new TransformContext(id, code, inMap);
            ctx.ssr = !!ssr;
            for (const plugin of plugins) {
                if (!plugin.transform)
                    continue;
                ctx._activePlugin = plugin;
                ctx._activeId = id;
                ctx._activeCode = code;
                const start = isDebug ? perf_hooks.performance.now() : 0;
                let result;
                try {
                    result = await plugin.transform.call(ctx, code, id, ssr);
                }
                catch (e) {
                    ctx.error(e);
                }
                if (!result)
                    continue;
                isDebug &&
                    debugPluginTransform(timeFrom(start), plugin.name, prettifyUrl(id, root));
                if (isObject$3(result)) {
                    code = result.code || '';
                    if (result.map)
                        ctx.sourcemapChain.push(result.map);
                }
                else {
                    code = result;
                }
            }
            return {
                code,
                map: ctx._getCombinedSourcemap()
            };
        },
        async close() {
            if (closed)
                return;
            const ctx = new Context();
            await Promise.all(plugins.map((p) => p.buildEnd && p.buildEnd.call(ctx)));
            await Promise.all(plugins.map((p) => p.closeBundle && p.closeBundle.call(ctx)));
            closed = true;
        }
    };
    return container;
}

const debug$b = createDebugger('vite:deps');
const htmlTypesRE = /\.(html|vue|svelte|astro)$/;
// A simple regex to detect import sources. This is only used on
// <script lang="ts"> blocks in vue (setup only) or svelte files, since
// seemingly unused imports are dropped by esbuild when transpiling TS which
// prevents it from crawling further.
// We can't use es-module-lexer because it can't handle TS, and don't want to
// use Acorn because it's slow. Luckily this doesn't have to be bullet proof
// since even missed imports can be caught at runtime, and false positives will
// simply be ignored.
const importsRE = /(?<!\/\/.*)(?<=^|;|\*\/)\s*import(?!\s+type)(?:[\w*{}\n\r\t, ]+from\s*)?\s*("[^"]+"|'[^']+')\s*(?=$|;|\/\/|\/\*)/gm;
async function scanImports(config) {
    var _a, _b, _c;
    const start = perf_hooks.performance.now();
    let entries = [];
    const explicitEntryPatterns = config.optimizeDeps.entries;
    const buildInput = (_a = config.build.rollupOptions) === null || _a === void 0 ? void 0 : _a.input;
    if (explicitEntryPatterns) {
        entries = await globEntries(explicitEntryPatterns, config);
    }
    else if (buildInput) {
        const resolvePath = (p) => path__default.resolve(config.root, p);
        if (typeof buildInput === 'string') {
            entries = [resolvePath(buildInput)];
        }
        else if (Array.isArray(buildInput)) {
            entries = buildInput.map(resolvePath);
        }
        else if (isObject$3(buildInput)) {
            entries = Object.values(buildInput).map(resolvePath);
        }
        else {
            throw new Error('invalid rollupOptions.input value.');
        }
    }
    else {
        entries = await globEntries('**/*.html', config);
    }
    // Non-supported entry file types and virtual files should not be scanned for
    // dependencies.
    entries = entries.filter((entry) => (JS_TYPES_RE.test(entry) || htmlTypesRE.test(entry)) &&
        fs__default.existsSync(entry));
    if (!entries.length) {
        if (!explicitEntryPatterns && !config.optimizeDeps.include) {
            config.logger.warn(source.yellow('(!) Could not auto-determine entry point from rollupOptions or html files ' +
                'and there are no explicit optimizeDeps.include patterns. ' +
                'Skipping dependency pre-bundling.'));
        }
        return { deps: {}, missing: {} };
    }
    else {
        debug$b(`Crawling dependencies using entries:\n  ${entries.join('\n  ')}`);
    }
    const deps = {};
    const missing = {};
    const container = await createPluginContainer(config);
    const plugin = esbuildScanPlugin(config, container, deps, missing, entries);
    const { plugins = [], ...esbuildOptions } = (_c = (_b = config.optimizeDeps) === null || _b === void 0 ? void 0 : _b.esbuildOptions) !== null && _c !== void 0 ? _c : {};
    await Promise.all(entries.map((entry) => esbuild.build({
        absWorkingDir: process.cwd(),
        write: false,
        entryPoints: [entry],
        bundle: true,
        format: 'esm',
        logLevel: 'error',
        plugins: [...plugins, plugin],
        ...esbuildOptions
    })));
    debug$b(`Scan completed in ${(perf_hooks.performance.now() - start).toFixed(2)}ms:`, deps);
    return {
        deps,
        missing
    };
}
function globEntries(pattern, config) {
    return out(pattern, {
        cwd: config.root,
        ignore: [
            '**/node_modules/**',
            `**/${config.build.outDir}/**`,
            `**/__tests__/**`
        ],
        absolute: true
    });
}
const scriptModuleRE = /(<script\b[^>]*type\s*=\s*(?:"module"|'module')[^>]*>)(.*?)<\/script>/gims;
const scriptRE = /(<script\b(?:\s[^>]*>|>))(.*?)<\/script>/gims;
const commentRE = /<!--(.|[\r\n])*?-->/;
const srcRE = /\bsrc\s*=\s*(?:"([^"]+)"|'([^']+)'|([^\s'">]+))/im;
const typeRE = /\btype\s*=\s*(?:"([^"]+)"|'([^']+)'|([^\s'">]+))/im;
const langRE = /\blang\s*=\s*(?:"([^"]+)"|'([^']+)'|([^\s'">]+))/im;
function esbuildScanPlugin(config, container, depImports, missing, entries) {
    var _a, _b;
    const seen = new Map();
    const resolve = async (id, importer) => {
        const key = id + (importer && path__default.dirname(importer));
        if (seen.has(key)) {
            return seen.get(key);
        }
        const resolved = await container.resolveId(id, importer && normalizePath$4(importer));
        const res = resolved === null || resolved === void 0 ? void 0 : resolved.id;
        seen.set(key, res);
        return res;
    };
    const include = (_a = config.optimizeDeps) === null || _a === void 0 ? void 0 : _a.include;
    const exclude = [
        ...(((_b = config.optimizeDeps) === null || _b === void 0 ? void 0 : _b.exclude) || []),
        '@vite/client',
        '@vite/env'
    ];
    const externalUnlessEntry = ({ path }) => ({
        path,
        external: !entries.includes(path)
    });
    return {
        name: 'vite:dep-scan',
        setup(build) {
            // external urls
            build.onResolve({ filter: externalRE }, ({ path }) => ({
                path,
                external: true
            }));
            // data urls
            build.onResolve({ filter: dataUrlRE }, ({ path }) => ({
                path,
                external: true
            }));
            // html types: extract script contents -----------------------------------
            build.onResolve({ filter: htmlTypesRE }, async ({ path, importer }) => {
                return {
                    path: await resolve(path, importer),
                    namespace: 'html'
                };
            });
            // extract scripts inside HTML-like files and treat it as a js module
            build.onLoad({ filter: htmlTypesRE, namespace: 'html' }, async ({ path }) => {
                let raw = fs__default.readFileSync(path, 'utf-8');
                // Avoid matching the content of the comment
                raw = raw.replace(commentRE, '<!---->');
                const isHtml = path.endsWith('.html');
                const regex = isHtml ? scriptModuleRE : scriptRE;
                regex.lastIndex = 0;
                let js = '';
                let loader = 'js';
                let match;
                while ((match = regex.exec(raw))) {
                    const [, openTag, content] = match;
                    const srcMatch = openTag.match(srcRE);
                    const typeMatch = openTag.match(typeRE);
                    const langMatch = openTag.match(langRE);
                    const type = typeMatch && (typeMatch[1] || typeMatch[2] || typeMatch[3]);
                    const lang = langMatch && (langMatch[1] || langMatch[2] || langMatch[3]);
                    // skip type="application/ld+json" and other non-JS types
                    if (type &&
                        !(type.includes('javascript') ||
                            type.includes('ecmascript') ||
                            type === 'module')) {
                        continue;
                    }
                    if (lang === 'ts' || lang === 'tsx' || lang === 'jsx') {
                        loader = lang;
                    }
                    if (srcMatch) {
                        const src = srcMatch[1] || srcMatch[2] || srcMatch[3];
                        js += `import ${JSON.stringify(src)}\n`;
                    }
                    else if (content.trim()) {
                        js += content + '\n';
                    }
                }
                // empty singleline & multiline comments to avoid matching comments
                const code = js
                    .replace(multilineCommentsRE, '/* */')
                    .replace(singlelineCommentsRE, '');
                if (loader.startsWith('ts') &&
                    (path.endsWith('.svelte') ||
                        (path.endsWith('.vue') && /<script\s+setup/.test(raw)))) {
                    // when using TS + (Vue + <script setup>) or Svelte, imports may seem
                    // unused to esbuild and dropped in the build output, which prevents
                    // esbuild from crawling further.
                    // the solution is to add `import 'x'` for every source to force
                    // esbuild to keep crawling due to potential side effects.
                    let m;
                    while ((m = importsRE.exec(code)) != null) {
                        // This is necessary to avoid infinite loops with zero-width matches
                        if (m.index === importsRE.lastIndex) {
                            importsRE.lastIndex++;
                        }
                        js += `\nimport ${m[1]}`;
                    }
                }
                // This will trigger incorrectly if `export default` is contained
                // anywhere in a string. Svelte and Astro files can't have
                // `export default` as code so we know if it's encountered it's a
                // false positive (e.g. contained in a string)
                if (!path.endsWith('.vue') || !js.includes('export default')) {
                    js += '\nexport default {}';
                }
                if (js.includes('import.meta.glob')) {
                    return {
                        // transformGlob already transforms to js
                        loader: 'js',
                        contents: await transformGlob(js, path, config.root, loader)
                    };
                }
                return {
                    loader,
                    contents: js
                };
            });
            // bare imports: record and externalize ----------------------------------
            build.onResolve({
                // avoid matching windows volume
                filter: /^[\w@][^:]/
            }, async ({ path: id, importer }) => {
                if (exclude === null || exclude === void 0 ? void 0 : exclude.some((e) => e === id || id.startsWith(e + '/'))) {
                    return externalUnlessEntry({ path: id });
                }
                if (depImports[id]) {
                    return externalUnlessEntry({ path: id });
                }
                const resolved = await resolve(id, importer);
                if (resolved) {
                    if (shouldExternalizeDep(resolved, id)) {
                        return externalUnlessEntry({ path: id });
                    }
                    if (resolved.includes('node_modules') || (include === null || include === void 0 ? void 0 : include.includes(id))) {
                        // dependency or forced included, externalize and stop crawling
                        if (OPTIMIZABLE_ENTRY_RE.test(resolved)) {
                            depImports[id] = resolved;
                        }
                        return externalUnlessEntry({ path: id });
                    }
                    else {
                        const namespace = htmlTypesRE.test(resolved) ? 'html' : undefined;
                        // linked package, keep crawling
                        return {
                            path: path__default.resolve(resolved),
                            namespace
                        };
                    }
                }
                else {
                    missing[id] = normalizePath$4(importer);
                }
            });
            // Externalized file types -----------------------------------------------
            // these are done on raw ids using esbuild's native regex filter so it
            // should be faster than doing it in the catch-all via js
            // they are done after the bare import resolve because a package name
            // may end with these extensions
            // css & json
            build.onResolve({
                filter: /\.(css|less|sass|scss|styl|stylus|pcss|postcss|json)$/
            }, externalUnlessEntry);
            // known asset types
            build.onResolve({
                filter: new RegExp(`\\.(${KNOWN_ASSET_TYPES.join('|')})$`)
            }, externalUnlessEntry);
            // known vite query types: ?worker, ?raw
            build.onResolve({ filter: SPECIAL_QUERY_RE }, ({ path }) => ({
                path,
                external: true
            }));
            // catch all -------------------------------------------------------------
            build.onResolve({
                filter: /.*/
            }, async ({ path: id, importer }) => {
                // use vite resolver to support urls and omitted extensions
                const resolved = await resolve(id, importer);
                if (resolved) {
                    if (shouldExternalizeDep(resolved, id)) {
                        return externalUnlessEntry({ path: id });
                    }
                    const namespace = htmlTypesRE.test(resolved) ? 'html' : undefined;
                    return {
                        path: path__default.resolve(cleanUrl(resolved)),
                        namespace
                    };
                }
                else {
                    // resolve failed... probably unsupported type
                    return externalUnlessEntry({ path: id });
                }
            });
            // for jsx/tsx, we need to access the content and check for
            // presence of import.meta.glob, since it results in import relationships
            // but isn't crawled by esbuild.
            build.onLoad({ filter: JS_TYPES_RE }, ({ path: id }) => {
                let ext = path__default.extname(id).slice(1);
                if (ext === 'mjs')
                    ext = 'js';
                let contents = fs__default.readFileSync(id, 'utf-8');
                if (ext.endsWith('x') && config.esbuild && config.esbuild.jsxInject) {
                    contents = config.esbuild.jsxInject + `\n` + contents;
                }
                if (contents.includes('import.meta.glob')) {
                    return transformGlob(contents, id, config.root, ext).then((contents) => ({
                        loader: ext,
                        contents
                    }));
                }
                return {
                    loader: ext,
                    contents
                };
            });
        }
    };
}
async function transformGlob(source, importer, root, loader) {
    // transform the content first since es-module-lexer can't handle non-js
    if (loader !== 'js') {
        source = (await esbuild.transform(source, { loader })).code;
    }
    await init;
    const imports = parse$f(source)[0];
    const s = new MagicString(source);
    for (let index = 0; index < imports.length; index++) {
        const { s: start, e: end, ss: expStart } = imports[index];
        const url = source.slice(start, end);
        if (url !== 'import.meta')
            continue;
        if (source.slice(end, end + 5) !== '.glob')
            continue;
        const { importsString, exp, endIndex } = await transformImportGlob(source, start, normalizePath$4(importer), index, root);
        s.prepend(importsString);
        s.overwrite(expStart, endIndex, exp);
    }
    return s.toString();
}
function shouldExternalizeDep(resolvedId, rawId) {
    // not a valid file path
    if (!path__default.isAbsolute(resolvedId)) {
        return true;
    }
    // virtual id
    if (resolvedId === rawId || resolvedId.includes('\0')) {
        return true;
    }
    // resolved is not a scannable type
    if (!JS_TYPES_RE.test(resolvedId) && !htmlTypesRE.test(resolvedId)) {
        return true;
    }
    return false;
}

/**
 * Convert `new URL('./foo.png', import.meta.url)` to its resolved built URL
 *
 * Supports template string with dynamic segments:
 * ```
 * new URL(`./dir/${name}.png`, import.meta.url)
 * // transformed to
 * import.meta.globEager('./dir/**.png')[`./dir/${name}.png`].default
 * ```
 */
function assetImportMetaUrlPlugin(config) {
    return {
        name: 'vite:asset-import-meta-url',
        async transform(code, id, ssr) {
            if (code.includes('new URL') && code.includes(`import.meta.url`)) {
                const importMetaUrlRE = /\bnew\s+URL\s*\(\s*('[^']+'|"[^"]+"|`[^`]+`)\s*,\s*import\.meta\.url\s*\)/g;
                const noCommentsCode = code
                    .replace(multilineCommentsRE, (m) => ' '.repeat(m.length))
                    .replace(singlelineCommentsRE, (m) => ' '.repeat(m.length));
                let s = null;
                let match;
                while ((match = importMetaUrlRE.exec(noCommentsCode))) {
                    const { 0: exp, 1: rawUrl, index } = match;
                    if (ssr) {
                        this.error(`\`new URL(url, import.meta.url)\` is not supported in SSR.`, index);
                    }
                    if (!s)
                        s = new MagicString(code);
                    // potential dynamic template string
                    if (rawUrl[0] === '`' && /\$\{/.test(rawUrl)) {
                        const ast = this.parse(rawUrl);
                        const templateLiteral = ast.body[0].expression;
                        if (templateLiteral.expressions.length) {
                            const pattern = buildGlobPattern(templateLiteral);
                            // Note: native import.meta.url is not supported in the baseline
                            // target so we use the global location here. It can be
                            // window.location or self.location in case it is used in a Web Worker.
                            // @see https://developer.mozilla.org/en-US/docs/Web/API/Window/self
                            s.overwrite(index, index + exp.length, `new URL(import.meta.globEagerDefault(${JSON.stringify(pattern)})[${rawUrl}], self.location)`);
                            continue;
                        }
                    }
                    const url = rawUrl.slice(1, -1);
                    const file = path__default.resolve(path__default.dirname(id), url);
                    const builtUrl = await fileToUrl(file, config, this);
                    s.overwrite(index, index + exp.length, `new URL(${JSON.stringify(builtUrl)}, self.location)`);
                }
                if (s) {
                    return {
                        code: s.toString(),
                        map: config.build.sourcemap ? s.generateMap({ hires: true }) : null
                    };
                }
            }
            return null;
        }
    };
}
function buildGlobPattern(ast) {
    let pattern = '';
    let lastElementIndex = -1;
    for (const exp of ast.expressions) {
        for (let i = lastElementIndex + 1; i < ast.quasis.length; i++) {
            const el = ast.quasis[i];
            if (el.end < exp.start) {
                pattern += el.value.raw;
                lastElementIndex = i;
            }
        }
        pattern += '**';
    }
    for (let i = lastElementIndex + 1; i < ast.quasis.length; i++) {
        pattern += ast.quasis[i].value.raw;
    }
    return pattern;
}

/**
 * A plugin to provide build load fallback for arbitrary request with queries.
 */
function loadFallbackPlugin() {
    return {
        name: 'vite:load-fallback',
        async load(id) {
            try {
                return await fs$r.promises.readFile(cleanUrl(id), 'utf-8');
            }
            catch (e) {
                return fs$r.promises.readFile(id, 'utf-8');
            }
        }
    };
}

function resolveBuildOptions(raw) {
    const resolved = {
        target: 'modules',
        polyfillModulePreload: true,
        outDir: 'dist',
        assetsDir: 'assets',
        assetsInlineLimit: 4096,
        cssCodeSplit: !(raw === null || raw === void 0 ? void 0 : raw.lib),
        cssTarget: false,
        sourcemap: false,
        rollupOptions: {},
        minify: (raw === null || raw === void 0 ? void 0 : raw.ssr) ? false : 'esbuild',
        terserOptions: {},
        write: true,
        emptyOutDir: null,
        manifest: false,
        lib: false,
        ssr: false,
        ssrManifest: false,
        reportCompressedSize: true,
        // brotliSize: true,
        chunkSizeWarningLimit: 500,
        watch: null,
        ...raw,
        commonjsOptions: {
            include: [/node_modules/],
            extensions: ['.js', '.cjs'],
            ...raw === null || raw === void 0 ? void 0 : raw.commonjsOptions
        },
        dynamicImportVarsOptions: {
            warnOnError: true,
            exclude: [/node_modules/],
            ...raw === null || raw === void 0 ? void 0 : raw.dynamicImportVarsOptions
        }
    };
    // handle special build targets
    if (resolved.target === 'modules') {
        // Support browserslist
        // "defaults and supports es6-module and supports es6-module-dynamic-import",
        resolved.target = [
            'es2019',
            'edge88',
            'firefox78',
            'chrome87',
            'safari13.1'
        ];
    }
    else if (resolved.target === 'esnext' && resolved.minify === 'terser') {
        // esnext + terser: limit to es2019 so it can be minified by terser
        resolved.target = 'es2019';
    }
    if (!resolved.cssTarget) {
        resolved.cssTarget = resolved.target;
    }
    // normalize false string into actual false
    if (resolved.minify === 'false') {
        resolved.minify = false;
    }
    if (resolved.minify === true) {
        resolved.minify = 'esbuild';
    }
    return resolved;
}
function resolveBuildPlugins(config) {
    const options = config.build;
    return {
        pre: [
            buildHtmlPlugin(config),
            commonjs(options.commonjsOptions),
            dataURIPlugin(),
            dynamicImportVariables(options.dynamicImportVarsOptions),
            assetImportMetaUrlPlugin(config),
            ...(options.rollupOptions.plugins
                ? options.rollupOptions.plugins.filter((p) => !!p)
                : [])
        ],
        post: [
            buildImportAnalysisPlugin(config),
            buildEsbuildPlugin(config),
            ...(options.minify === 'terser' ? [terserPlugin(config)] : []),
            ...(options.manifest ? [manifestPlugin(config)] : []),
            ...(options.ssrManifest ? [ssrManifestPlugin(config)] : []),
            buildReporterPlugin(config),
            loadFallbackPlugin()
        ]
    };
}
/**
 * Track parallel build calls and only stop the esbuild service when all
 * builds are done. (#1098)
 */
let parallelCallCounts = 0;
// we use a separate counter to track since the call may error before the
// bundle is even pushed.
const parallelBuilds = [];
/**
 * Bundles the app for production.
 * Returns a Promise containing the build result.
 */
async function build(inlineConfig = {}) {
    parallelCallCounts++;
    try {
        return await doBuild(inlineConfig);
    }
    finally {
        parallelCallCounts--;
        if (parallelCallCounts <= 0) {
            await Promise.all(parallelBuilds.map((bundle) => bundle.close()));
            parallelBuilds.length = 0;
        }
    }
}
async function doBuild(inlineConfig = {}) {
    var _a, _b, _c, _d;
    const config = await resolveConfig(inlineConfig, 'build', 'production');
    const options = config.build;
    const ssr = !!options.ssr;
    const libOptions = options.lib;
    config.logger.info(source.cyan(`vite v${require('vite/package.json').version} ${source.green(`building ${ssr ? `SSR bundle ` : ``}for ${config.mode}...`)}`));
    const resolve = (p) => path__default.resolve(config.root, p);
    const input = libOptions
        ? resolve(libOptions.entry)
        : typeof options.ssr === 'string'
            ? resolve(options.ssr)
            : ((_a = options.rollupOptions) === null || _a === void 0 ? void 0 : _a.input) || resolve('index.html');
    if (ssr && typeof input === 'string' && input.endsWith('.html')) {
        throw new Error(`rollupOptions.input should not be an html file when building for SSR. ` +
            `Please specify a dedicated SSR entry.`);
    }
    const outDir = resolve(options.outDir);
    // inject ssr arg to plugin load/transform hooks
    const plugins = (ssr ? config.plugins.map((p) => injectSsrFlagToHooks(p)) : config.plugins);
    // inject ssrExternal if present
    const userExternal = (_b = options.rollupOptions) === null || _b === void 0 ? void 0 : _b.external;
    let external = userExternal;
    if (ssr) {
        // see if we have cached deps data available
        let knownImports;
        if (config.cacheDir) {
            const dataPath = path__default.join(config.cacheDir, '_metadata.json');
            try {
                const data = JSON.parse(fs__default.readFileSync(dataPath, 'utf-8'));
                knownImports = Object.keys(data.optimized);
            }
            catch (e) { }
        }
        if (!knownImports) {
            // no dev deps optimization data, do a fresh scan
            knownImports = Object.keys((await scanImports(config)).deps);
        }
        external = resolveExternal(resolveSSRExternal(config, knownImports), userExternal);
    }
    const rollup = require('rollup');
    const rollupOptions = {
        input,
        context: 'globalThis',
        preserveEntrySignatures: ssr
            ? 'allow-extension'
            : libOptions
                ? 'strict'
                : false,
        ...options.rollupOptions,
        plugins,
        external,
        onwarn(warning, warn) {
            onRollupWarning(warning, warn, config);
        }
    };
    const outputBuildError = (e) => {
        let msg = source.red((e.plugin ? `[${e.plugin}] ` : '') + e.message);
        if (e.id) {
            msg += `\nfile: ${source.cyan(e.id + (e.loc ? `:${e.loc.line}:${e.loc.column}` : ''))}`;
        }
        if (e.frame) {
            msg += `\n` + source.yellow(e.frame);
        }
        config.logger.error(msg, { error: e });
    };
    try {
        const buildOutputOptions = (output = {}) => {
            return {
                dir: outDir,
                format: ssr ? 'cjs' : 'es',
                exports: ssr ? 'named' : 'auto',
                sourcemap: options.sourcemap,
                name: libOptions ? libOptions.name : undefined,
                entryFileNames: ssr
                    ? `[name].js`
                    : libOptions
                        ? resolveLibFilename(libOptions, output.format || 'es', config.root)
                        : path__default.posix.join(options.assetsDir, `[name].[hash].js`),
                chunkFileNames: libOptions
                    ? `[name].js`
                    : path__default.posix.join(options.assetsDir, `[name].[hash].js`),
                assetFileNames: libOptions
                    ? `[name].[ext]`
                    : path__default.posix.join(options.assetsDir, `[name].[hash].[ext]`),
                // #764 add `Symbol.toStringTag` when build es module into cjs chunk
                // #1048 add `Symbol.toStringTag` for module default export
                namespaceToStringTag: true,
                inlineDynamicImports: ssr && typeof input === 'string',
                manualChunks: !ssr &&
                    !libOptions &&
                    (output === null || output === void 0 ? void 0 : output.format) !== 'umd' &&
                    (output === null || output === void 0 ? void 0 : output.format) !== 'iife'
                    ? createMoveToVendorChunkFn()
                    : undefined,
                ...output
            };
        };
        // resolve lib mode outputs
        const outputs = resolveBuildOutputs((_c = options.rollupOptions) === null || _c === void 0 ? void 0 : _c.output, libOptions, config.logger);
        // watch file changes with rollup
        if (config.build.watch) {
            config.logger.info(source.cyanBright(`\nwatching for file changes...`));
            const output = [];
            if (Array.isArray(outputs)) {
                for (const resolvedOutput of outputs) {
                    output.push(buildOutputOptions(resolvedOutput));
                }
            }
            else {
                output.push(buildOutputOptions(outputs));
            }
            const watcherOptions = config.build.watch;
            const watcher = rollup.watch({
                ...rollupOptions,
                output,
                watch: {
                    ...watcherOptions,
                    chokidar: {
                        ignored: [
                            '**/node_modules/**',
                            '**/.git/**',
                            ...(((_d = watcherOptions === null || watcherOptions === void 0 ? void 0 : watcherOptions.chokidar) === null || _d === void 0 ? void 0 : _d.ignored) || [])
                        ],
                        ignoreInitial: true,
                        ignorePermissionErrors: true,
                        ...watcherOptions.chokidar
                    }
                }
            });
            watcher.on('event', (event) => {
                if (event.code === 'BUNDLE_START') {
                    config.logger.info(source.cyanBright(`\nbuild started...`));
                    if (options.write) {
                        prepareOutDir(outDir, options.emptyOutDir, config);
                    }
                }
                else if (event.code === 'BUNDLE_END') {
                    event.result.close();
                    config.logger.info(source.cyanBright(`built in ${event.duration}ms.`));
                }
                else if (event.code === 'ERROR') {
                    outputBuildError(event.error);
                }
            });
            // stop watching
            watcher.close();
            return watcher;
        }
        // write or generate files with rollup
        const bundle = await rollup.rollup(rollupOptions);
        parallelBuilds.push(bundle);
        const generate = (output = {}) => {
            return bundle[options.write ? 'write' : 'generate'](buildOutputOptions(output));
        };
        if (options.write) {
            prepareOutDir(outDir, options.emptyOutDir, config);
        }
        if (Array.isArray(outputs)) {
            const res = [];
            for (const output of outputs) {
                res.push(await generate(output));
            }
            return res;
        }
        else {
            return await generate(outputs);
        }
    }
    catch (e) {
        outputBuildError(e);
        throw e;
    }
}
function prepareOutDir(outDir, emptyOutDir, config) {
    if (fs__default.existsSync(outDir)) {
        if (emptyOutDir == null &&
            !normalizePath$4(outDir).startsWith(config.root + '/')) {
            // warn if outDir is outside of root
            config.logger.warn(source.yellow(`\n${source.bold(`(!)`)} outDir ${source.white.dim(outDir)} is not inside project root and will not be emptied.\n` +
                `Use --emptyOutDir to override.\n`));
        }
        else if (emptyOutDir !== false) {
            emptyDir(outDir, ['.git']);
        }
    }
    if (config.publicDir && fs__default.existsSync(config.publicDir)) {
        copyDir(config.publicDir, outDir);
    }
}
function getPkgName(root) {
    const { name } = JSON.parse(lookupFile(root, ['package.json']) || `{}`);
    return (name === null || name === void 0 ? void 0 : name.startsWith('@')) ? name.split('/')[1] : name;
}
function createMoveToVendorChunkFn(config) {
    const cache = new Map();
    return (id, { getModuleInfo }) => {
        if (id.includes('node_modules') &&
            !isCSSRequest(id) &&
            staticImportedByEntry(id, getModuleInfo, cache)) {
            return 'vendor';
        }
    };
}
function staticImportedByEntry(id, getModuleInfo, cache, importStack = []) {
    if (cache.has(id)) {
        return cache.get(id);
    }
    if (importStack.includes(id)) {
        // circular deps!
        cache.set(id, false);
        return false;
    }
    const mod = getModuleInfo(id);
    if (!mod) {
        cache.set(id, false);
        return false;
    }
    if (mod.isEntry) {
        cache.set(id, true);
        return true;
    }
    const someImporterIs = mod.importers.some((importer) => staticImportedByEntry(importer, getModuleInfo, cache, importStack.concat(id)));
    cache.set(id, someImporterIs);
    return someImporterIs;
}
function resolveLibFilename(libOptions, format, root) {
    if (typeof libOptions.fileName === 'function') {
        return libOptions.fileName(format);
    }
    const name = libOptions.fileName || getPkgName(root);
    if (!name)
        throw new Error('Name in package.json is required if option "build.lib.fileName" is not provided.');
    return `${name}.${format}.js`;
}
function resolveBuildOutputs(outputs, libOptions, logger) {
    if (libOptions) {
        const formats = libOptions.formats || ['es', 'umd'];
        if ((formats.includes('umd') || formats.includes('iife')) &&
            !libOptions.name) {
            throw new Error(`Option "build.lib.name" is required when output formats ` +
                `include "umd" or "iife".`);
        }
        if (!outputs) {
            return formats.map((format) => ({ format }));
        }
        else if (!Array.isArray(outputs)) {
            return formats.map((format) => ({ ...outputs, format }));
        }
        else if (libOptions.formats) {
            // user explicitly specifying own output array
            logger.warn(source.yellow(`"build.lib.formats" will be ignored because ` +
                `"build.rollupOptions.output" is already an array format`));
        }
    }
    return outputs;
}
const warningIgnoreList = [`CIRCULAR_DEPENDENCY`, `THIS_IS_UNDEFINED`];
const dynamicImportWarningIgnoreList = [
    `Unsupported expression`,
    `statically analyzed`
];
function onRollupWarning(warning, warn, config) {
    var _a;
    if (warning.code === 'UNRESOLVED_IMPORT') {
        const id = warning.source;
        const importer = warning.importer;
        // throw unless it's commonjs external...
        if (!importer || !/\?commonjs-external$/.test(importer)) {
            throw new Error(`[vite]: Rollup failed to resolve import "${id}" from "${importer}".\n` +
                `This is most likely unintended because it can break your application at runtime.\n` +
                `If you do want to externalize this module explicitly add it to\n` +
                `\`build.rollupOptions.external\``);
        }
    }
    if (warning.plugin === 'rollup-plugin-dynamic-import-variables' &&
        dynamicImportWarningIgnoreList.some((msg) => warning.message.includes(msg))) {
        return;
    }
    if (!warningIgnoreList.includes(warning.code)) {
        const userOnWarn = (_a = config.build.rollupOptions) === null || _a === void 0 ? void 0 : _a.onwarn;
        if (userOnWarn) {
            userOnWarn(warning, warn);
        }
        else if (warning.code === 'PLUGIN_WARNING') {
            config.logger.warn(`${source.bold.yellow(`[plugin:${warning.plugin}]`)} ${source.yellow(warning.message)}`);
        }
        else {
            warn(warning);
        }
    }
}
function resolveExternal(ssrExternals, user) {
    return ((id, parentId, isResolved) => {
        if (shouldExternalizeForSSR(id, ssrExternals)) {
            return true;
        }
        if (user) {
            if (typeof user === 'function') {
                return user(id, parentId, isResolved);
            }
            else if (Array.isArray(user)) {
                return user.some((test) => isExternal(id, test));
            }
            else {
                return isExternal(id, user);
            }
        }
    });
}
function isExternal(id, test) {
    if (typeof test === 'string') {
        return id === test;
    }
    else {
        return test.test(id);
    }
}
function injectSsrFlagToHooks(p) {
    const { resolveId, load, transform } = p;
    return {
        ...p,
        resolveId: wrapSsrHook(resolveId),
        load: wrapSsrHook(load),
        transform: wrapSsrHook(transform)
    };
}
function wrapSsrHook(fn) {
    if (!fn)
        return;
    return function (...args) {
        return fn.call(this, ...args, true);
    };
}

var build$1 = {
	__proto__: null,
	resolveBuildOptions: resolveBuildOptions,
	resolveBuildPlugins: resolveBuildPlugins,
	build: build,
	resolveLibFilename: resolveLibFilename,
	onRollupWarning: onRollupWarning
};

var src = {exports: {}};

var browser = {exports: {}};

var debug$a = {exports: {}};

/**
 * Helpers.
 */

var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var y = d * 365.25;

/**
 * Parse or format the given `val`.
 *
 * Options:
 *
 *  - `long` verbose formatting [false]
 *
 * @param {String|Number} val
 * @param {Object} [options]
 * @throws {Error} throw an error if val is not a non-empty string or a number
 * @return {String|Number}
 * @api public
 */

var ms = function(val, options) {
  options = options || {};
  var type = typeof val;
  if (type === 'string' && val.length > 0) {
    return parse$b(val);
  } else if (type === 'number' && isNaN(val) === false) {
    return options.long ? fmtLong(val) : fmtShort(val);
  }
  throw new Error(
    'val is not a non-empty string or a valid number. val=' +
      JSON.stringify(val)
  );
};

/**
 * Parse the given `str` and return milliseconds.
 *
 * @param {String} str
 * @return {Number}
 * @api private
 */

function parse$b(str) {
  str = String(str);
  if (str.length > 100) {
    return;
  }
  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
    str
  );
  if (!match) {
    return;
  }
  var n = parseFloat(match[1]);
  var type = (match[2] || 'ms').toLowerCase();
  switch (type) {
    case 'years':
    case 'year':
    case 'yrs':
    case 'yr':
    case 'y':
      return n * y;
    case 'days':
    case 'day':
    case 'd':
      return n * d;
    case 'hours':
    case 'hour':
    case 'hrs':
    case 'hr':
    case 'h':
      return n * h;
    case 'minutes':
    case 'minute':
    case 'mins':
    case 'min':
    case 'm':
      return n * m;
    case 'seconds':
    case 'second':
    case 'secs':
    case 'sec':
    case 's':
      return n * s;
    case 'milliseconds':
    case 'millisecond':
    case 'msecs':
    case 'msec':
    case 'ms':
      return n;
    default:
      return undefined;
  }
}

/**
 * Short format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtShort(ms) {
  if (ms >= d) {
    return Math.round(ms / d) + 'd';
  }
  if (ms >= h) {
    return Math.round(ms / h) + 'h';
  }
  if (ms >= m) {
    return Math.round(ms / m) + 'm';
  }
  if (ms >= s) {
    return Math.round(ms / s) + 's';
  }
  return ms + 'ms';
}

/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtLong(ms) {
  return plural(ms, d, 'day') ||
    plural(ms, h, 'hour') ||
    plural(ms, m, 'minute') ||
    plural(ms, s, 'second') ||
    ms + ' ms';
}

/**
 * Pluralization helper.
 */

function plural(ms, n, name) {
  if (ms < n) {
    return;
  }
  if (ms < n * 1.5) {
    return Math.floor(ms / n) + ' ' + name;
  }
  return Math.ceil(ms / n) + ' ' + name + 's';
}

(function (module, exports) {
/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
exports.coerce = coerce;
exports.disable = disable;
exports.enable = enable;
exports.enabled = enabled;
exports.humanize = ms;

/**
 * The currently active debug mode names, and names to skip.
 */

exports.names = [];
exports.skips = [];

/**
 * Map of special "%n" handling functions, for the debug "format" argument.
 *
 * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
 */

exports.formatters = {};

/**
 * Previous log timestamp.
 */

var prevTime;

/**
 * Select a color.
 * @param {String} namespace
 * @return {Number}
 * @api private
 */

function selectColor(namespace) {
  var hash = 0, i;

  for (i in namespace) {
    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
    hash |= 0; // Convert to 32bit integer
  }

  return exports.colors[Math.abs(hash) % exports.colors.length];
}

/**
 * Create a debugger with the given `namespace`.
 *
 * @param {String} namespace
 * @return {Function}
 * @api public
 */

function createDebug(namespace) {

  function debug() {
    // disabled?
    if (!debug.enabled) return;

    var self = debug;

    // set `diff` timestamp
    var curr = +new Date();
    var ms = curr - (prevTime || curr);
    self.diff = ms;
    self.prev = prevTime;
    self.curr = curr;
    prevTime = curr;

    // turn the `arguments` into a proper Array
    var args = new Array(arguments.length);
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }

    args[0] = exports.coerce(args[0]);

    if ('string' !== typeof args[0]) {
      // anything else let's inspect with %O
      args.unshift('%O');
    }

    // apply any `formatters` transformations
    var index = 0;
    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
      // if we encounter an escaped % then don't increase the array index
      if (match === '%%') return match;
      index++;
      var formatter = exports.formatters[format];
      if ('function' === typeof formatter) {
        var val = args[index];
        match = formatter.call(self, val);

        // now we need to remove `args[index]` since it's inlined in the `format`
        args.splice(index, 1);
        index--;
      }
      return match;
    });

    // apply env-specific formatting (colors, etc.)
    exports.formatArgs.call(self, args);

    var logFn = debug.log || exports.log || console.log.bind(console);
    logFn.apply(self, args);
  }

  debug.namespace = namespace;
  debug.enabled = exports.enabled(namespace);
  debug.useColors = exports.useColors();
  debug.color = selectColor(namespace);

  // env-specific initialization logic for debug instances
  if ('function' === typeof exports.init) {
    exports.init(debug);
  }

  return debug;
}

/**
 * Enables a debug mode by namespaces. This can include modes
 * separated by a colon and wildcards.
 *
 * @param {String} namespaces
 * @api public
 */

function enable(namespaces) {
  exports.save(namespaces);

  exports.names = [];
  exports.skips = [];

  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
  var len = split.length;

  for (var i = 0; i < len; i++) {
    if (!split[i]) continue; // ignore empty strings
    namespaces = split[i].replace(/\*/g, '.*?');
    if (namespaces[0] === '-') {
      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
    } else {
      exports.names.push(new RegExp('^' + namespaces + '$'));
    }
  }
}

/**
 * Disable debug output.
 *
 * @api public
 */

function disable() {
  exports.enable('');
}

/**
 * Returns true if the given mode name is enabled, false otherwise.
 *
 * @param {String} name
 * @return {Boolean}
 * @api public
 */

function enabled(name) {
  var i, len;
  for (i = 0, len = exports.skips.length; i < len; i++) {
    if (exports.skips[i].test(name)) {
      return false;
    }
  }
  for (i = 0, len = exports.names.length; i < len; i++) {
    if (exports.names[i].test(name)) {
      return true;
    }
  }
  return false;
}

/**
 * Coerce `val`.
 *
 * @param {Mixed} val
 * @return {Mixed}
 * @api private
 */

function coerce(val) {
  if (val instanceof Error) return val.stack || val.message;
  return val;
}
}(debug$a, debug$a.exports));

/**
 * This is the web browser implementation of `debug()`.
 *
 * Expose `debug()` as the module.
 */

(function (module, exports) {
exports = module.exports = debug$a.exports;
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = 'undefined' != typeof chrome
               && 'undefined' != typeof chrome.storage
                  ? chrome.storage.local
                  : localstorage();

/**
 * Colors.
 */

exports.colors = [
  'lightseagreen',
  'forestgreen',
  'goldenrod',
  'dodgerblue',
  'darkorchid',
  'crimson'
];

/**
 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
 * and the Firebug extension (any Firefox version) are known
 * to support "%c" CSS customizations.
 *
 * TODO: add a `localStorage` variable to explicitly enable/disable colors
 */

function useColors() {
  // NB: In an Electron preload script, document will be defined but not fully
  // initialized. Since we know we're in Chrome, we'll just detect this case
  // explicitly
  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
    return true;
  }

  // is webkit? http://stackoverflow.com/a/16459606/376773
  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
    // is firebug? http://stackoverflow.com/a/398120/376773
    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
    // is firefox >= v31?
    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
    // double check webkit in userAgent just in case we are in a worker
    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
}

/**
 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
 */

exports.formatters.j = function(v) {
  try {
    return JSON.stringify(v);
  } catch (err) {
    return '[UnexpectedJSONParseError]: ' + err.message;
  }
};


/**
 * Colorize log arguments if enabled.
 *
 * @api public
 */

function formatArgs(args) {
  var useColors = this.useColors;

  args[0] = (useColors ? '%c' : '')
    + this.namespace
    + (useColors ? ' %c' : ' ')
    + args[0]
    + (useColors ? '%c ' : ' ')
    + '+' + exports.humanize(this.diff);

  if (!useColors) return;

  var c = 'color: ' + this.color;
  args.splice(1, 0, c, 'color: inherit');

  // the final "%c" is somewhat tricky, because there could be other
  // arguments passed either before or after the %c, so we need to
  // figure out the correct index to insert the CSS into
  var index = 0;
  var lastC = 0;
  args[0].replace(/%[a-zA-Z%]/g, function(match) {
    if ('%%' === match) return;
    index++;
    if ('%c' === match) {
      // we only are interested in the *last* %c
      // (the user may have provided their own)
      lastC = index;
    }
  });

  args.splice(lastC, 0, c);
}

/**
 * Invokes `console.log()` when available.
 * No-op when `console.log` is not a "function".
 *
 * @api public
 */

function log() {
  // this hackery is required for IE8/9, where
  // the `console.log` function doesn't have 'apply'
  return 'object' === typeof console
    && console.log
    && Function.prototype.apply.call(console.log, console, arguments);
}

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */

function save(namespaces) {
  try {
    if (null == namespaces) {
      exports.storage.removeItem('debug');
    } else {
      exports.storage.debug = namespaces;
    }
  } catch(e) {}
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */

function load() {
  var r;
  try {
    r = exports.storage.debug;
  } catch(e) {}

  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
  if (!r && typeof process !== 'undefined' && 'env' in process) {
    r = process.env.DEBUG;
  }

  return r;
}

/**
 * Enable namespaces listed in `localStorage.debug` initially.
 */

exports.enable(load());

/**
 * Localstorage attempts to return the localstorage.
 *
 * This is necessary because safari throws
 * when a user disables cookies/localstorage
 * and you attempt to access it.
 *
 * @return {LocalStorage}
 * @api private
 */

function localstorage() {
  try {
    return window.localStorage;
  } catch (e) {}
}
}(browser, browser.exports));

var node = {exports: {}};

/**
 * Module dependencies.
 */

(function (module, exports) {
var tty = require$$0__default;
var util = require$$0__default$2;

/**
 * This is the Node.js implementation of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = debug$a.exports;
exports.init = init;
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;

/**
 * Colors.
 */

exports.colors = [6, 2, 3, 4, 5, 1];

/**
 * Build up the default `inspectOpts` object from the environment variables.
 *
 *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
 */

exports.inspectOpts = Object.keys(process.env).filter(function (key) {
  return /^debug_/i.test(key);
}).reduce(function (obj, key) {
  // camel-case
  var prop = key
    .substring(6)
    .toLowerCase()
    .replace(/_([a-z])/g, function (_, k) { return k.toUpperCase() });

  // coerce string value into JS value
  var val = process.env[key];
  if (/^(yes|on|true|enabled)$/i.test(val)) val = true;
  else if (/^(no|off|false|disabled)$/i.test(val)) val = false;
  else if (val === 'null') val = null;
  else val = Number(val);

  obj[prop] = val;
  return obj;
}, {});

/**
 * The file descriptor to write the `debug()` calls to.
 * Set the `DEBUG_FD` env variable to override with another value. i.e.:
 *
 *   $ DEBUG_FD=3 node script.js 3>debug.log
 */

var fd = parseInt(process.env.DEBUG_FD, 10) || 2;

if (1 !== fd && 2 !== fd) {
  util.deprecate(function(){}, 'except for stderr(2) and stdout(1), any other usage of DEBUG_FD is deprecated. Override debug.log if you want to use a different log function (https://git.io/debug_fd)')();
}

var stream = 1 === fd ? process.stdout :
             2 === fd ? process.stderr :
             createWritableStdioStream(fd);

/**
 * Is stdout a TTY? Colored output is enabled when `true`.
 */

function useColors() {
  return 'colors' in exports.inspectOpts
    ? Boolean(exports.inspectOpts.colors)
    : tty.isatty(fd);
}

/**
 * Map %o to `util.inspect()`, all on a single line.
 */

exports.formatters.o = function(v) {
  this.inspectOpts.colors = this.useColors;
  return util.inspect(v, this.inspectOpts)
    .split('\n').map(function(str) {
      return str.trim()
    }).join(' ');
};

/**
 * Map %o to `util.inspect()`, allowing multiple lines if needed.
 */

exports.formatters.O = function(v) {
  this.inspectOpts.colors = this.useColors;
  return util.inspect(v, this.inspectOpts);
};

/**
 * Adds ANSI color escape codes if enabled.
 *
 * @api public
 */

function formatArgs(args) {
  var name = this.namespace;
  var useColors = this.useColors;

  if (useColors) {
    var c = this.color;
    var prefix = '  \u001b[3' + c + ';1m' + name + ' ' + '\u001b[0m';

    args[0] = prefix + args[0].split('\n').join('\n' + prefix);
    args.push('\u001b[3' + c + 'm+' + exports.humanize(this.diff) + '\u001b[0m');
  } else {
    args[0] = new Date().toUTCString()
      + ' ' + name + ' ' + args[0];
  }
}

/**
 * Invokes `util.format()` with the specified arguments and writes to `stream`.
 */

function log() {
  return stream.write(util.format.apply(util, arguments) + '\n');
}

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */

function save(namespaces) {
  if (null == namespaces) {
    // If you set a process.env field to null or undefined, it gets cast to the
    // string 'null' or 'undefined'. Just delete instead.
    delete process.env.DEBUG;
  } else {
    process.env.DEBUG = namespaces;
  }
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */

function load() {
  return process.env.DEBUG;
}

/**
 * Copied from `node/src/node.js`.
 *
 * XXX: It's lame that node doesn't expose this API out-of-the-box. It also
 * relies on the undocumented `tty_wrap.guessHandleType()` which is also lame.
 */

function createWritableStdioStream (fd) {
  var stream;
  var tty_wrap = process.binding('tty_wrap');

  // Note stream._type is used for test-module-load-list.js

  switch (tty_wrap.guessHandleType(fd)) {
    case 'TTY':
      stream = new tty.WriteStream(fd);
      stream._type = 'tty';

      // Hack to have stream not keep the event loop alive.
      // See https://github.com/joyent/node/issues/1726
      if (stream._handle && stream._handle.unref) {
        stream._handle.unref();
      }
      break;

    case 'FILE':
      var fs = fs__default;
      stream = new fs.SyncWriteStream(fd, { autoClose: false });
      stream._type = 'fs';
      break;

    case 'PIPE':
    case 'TCP':
      var net = require$$3__default;
      stream = new net.Socket({
        fd: fd,
        readable: false,
        writable: true
      });

      // FIXME Should probably have an option in net.Socket to create a
      // stream from an existing fd which is writable only. But for now
      // we'll just add this hack and set the `readable` member to false.
      // Test: ./node test/fixtures/echo.js < /etc/passwd
      stream.readable = false;
      stream.read = null;
      stream._type = 'pipe';

      // FIXME Hack to have stream not keep the event loop alive.
      // See https://github.com/joyent/node/issues/1726
      if (stream._handle && stream._handle.unref) {
        stream._handle.unref();
      }
      break;

    default:
      // Probably an error on in uv_guess_handle()
      throw new Error('Implement me. Unknown stream file type!');
  }

  // For supporting legacy API we put the FD here.
  stream.fd = fd;

  stream._isStdio = true;

  return stream;
}

/**
 * Init logic for `debug` instances.
 *
 * Create a new `inspectOpts` object in case `useColors` is set
 * differently for a particular `debug` instance.
 */

function init (debug) {
  debug.inspectOpts = {};

  var keys = Object.keys(exports.inspectOpts);
  for (var i = 0; i < keys.length; i++) {
    debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
  }
}

/**
 * Enable namespaces listed in `process.env.DEBUG` initially.
 */

exports.enable(load());
}(node, node.exports));

/**
 * Detect Electron renderer process, which is node, but we should
 * treat as a browser.
 */

if (typeof process !== 'undefined' && process.type === 'renderer') {
  src.exports = browser.exports;
} else {
  src.exports = node.exports;
}

/*!
 * encodeurl
 * Copyright(c) 2016 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

var encodeurl = encodeUrl$1;

/**
 * RegExp to match non-URL code points, *after* encoding (i.e. not including "%")
 * and including invalid escape sequences.
 * @private
 */

var ENCODE_CHARS_REGEXP = /(?:[^\x21\x25\x26-\x3B\x3D\x3F-\x5B\x5D\x5F\x61-\x7A\x7E]|%(?:[^0-9A-Fa-f]|[0-9A-Fa-f][^0-9A-Fa-f]|$))+/g;

/**
 * RegExp to match unmatched surrogate pair.
 * @private
 */

var UNMATCHED_SURROGATE_PAIR_REGEXP = /(^|[^\uD800-\uDBFF])[\uDC00-\uDFFF]|[\uD800-\uDBFF]([^\uDC00-\uDFFF]|$)/g;

/**
 * String to replace unmatched surrogate pair with.
 * @private
 */

var UNMATCHED_SURROGATE_PAIR_REPLACE = '$1\uFFFD$2';

/**
 * Encode a URL to a percent-encoded form, excluding already-encoded sequences.
 *
 * This function will take an already-encoded URL and encode all the non-URL
 * code points. This function will not encode the "%" character unless it is
 * not part of a valid sequence (`%20` will be left as-is, but `%foo` will
 * be encoded as `%25foo`).
 *
 * This encode is meant to be "safe" and does not throw errors. It will try as
 * hard as it can to properly encode the given URL, including replacing any raw,
 * unpaired surrogate pairs with the Unicode replacement character prior to
 * encoding.
 *
 * @param {string} url
 * @return {string}
 * @public
 */

function encodeUrl$1 (url) {
  return String(url)
    .replace(UNMATCHED_SURROGATE_PAIR_REGEXP, UNMATCHED_SURROGATE_PAIR_REPLACE)
    .replace(ENCODE_CHARS_REGEXP, encodeURI)
}

/*!
 * escape-html
 * Copyright(c) 2012-2013 TJ Holowaychuk
 * Copyright(c) 2015 Andreas Lubbe
 * Copyright(c) 2015 Tiancheng "Timothy" Gu
 * MIT Licensed
 */

/**
 * Module variables.
 * @private
 */

var matchHtmlRegExp = /["'&<>]/;

/**
 * Module exports.
 * @public
 */

var escapeHtml_1 = escapeHtml$1;

/**
 * Escape special characters in the given string of html.
 *
 * @param  {string} string The string to escape for inserting into HTML
 * @return {string}
 * @public
 */

function escapeHtml$1(string) {
  var str = '' + string;
  var match = matchHtmlRegExp.exec(str);

  if (!match) {
    return str;
  }

  var escape;
  var html = '';
  var index = 0;
  var lastIndex = 0;

  for (index = match.index; index < str.length; index++) {
    switch (str.charCodeAt(index)) {
      case 34: // "
        escape = '&quot;';
        break;
      case 38: // &
        escape = '&amp;';
        break;
      case 39: // '
        escape = '&#39;';
        break;
      case 60: // <
        escape = '&lt;';
        break;
      case 62: // >
        escape = '&gt;';
        break;
      default:
        continue;
    }

    if (lastIndex !== index) {
      html += str.substring(lastIndex, index);
    }

    lastIndex = index + 1;
    html += escape;
  }

  return lastIndex !== index
    ? html + str.substring(lastIndex, index)
    : html;
}

var onFinished$2 = {exports: {}};

/*!
 * ee-first
 * Copyright(c) 2014 Jonathan Ong
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

var eeFirst = first$1;

/**
 * Get the first event in a set of event emitters and event pairs.
 *
 * @param {array} stuff
 * @param {function} done
 * @public
 */

function first$1(stuff, done) {
  if (!Array.isArray(stuff))
    throw new TypeError('arg must be an array of [ee, events...] arrays')

  var cleanups = [];

  for (var i = 0; i < stuff.length; i++) {
    var arr = stuff[i];

    if (!Array.isArray(arr) || arr.length < 2)
      throw new TypeError('each array member must be [ee, events...]')

    var ee = arr[0];

    for (var j = 1; j < arr.length; j++) {
      var event = arr[j];
      var fn = listener(event, callback);

      // listen to the event
      ee.on(event, fn);
      // push this listener to the list of cleanups
      cleanups.push({
        ee: ee,
        event: event,
        fn: fn,
      });
    }
  }

  function callback() {
    cleanup();
    done.apply(null, arguments);
  }

  function cleanup() {
    var x;
    for (var i = 0; i < cleanups.length; i++) {
      x = cleanups[i];
      x.ee.removeListener(x.event, x.fn);
    }
  }

  function thunk(fn) {
    done = fn;
  }

  thunk.cancel = cleanup;

  return thunk
}

/**
 * Create the event listener.
 * @private
 */

function listener(event, done) {
  return function onevent(arg1) {
    var args = new Array(arguments.length);
    var ee = this;
    var err = event === 'error'
      ? arg1
      : null;

    // copy args to prevent arguments escaping scope
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }

    done(err, ee, event, args);
  }
}

/*!
 * on-finished
 * Copyright(c) 2013 Jonathan Ong
 * Copyright(c) 2014 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

onFinished$2.exports = onFinished$1;
onFinished$2.exports.isFinished = isFinished$1;

/**
 * Module dependencies.
 * @private
 */

var first = eeFirst;

/**
 * Variables.
 * @private
 */

/* istanbul ignore next */
var defer$2 = typeof setImmediate === 'function'
  ? setImmediate
  : function(fn){ process.nextTick(fn.bind.apply(fn, arguments)); };

/**
 * Invoke callback when the response has finished, useful for
 * cleaning up resources afterwards.
 *
 * @param {object} msg
 * @param {function} listener
 * @return {object}
 * @public
 */

function onFinished$1(msg, listener) {
  if (isFinished$1(msg) !== false) {
    defer$2(listener, null, msg);
    return msg
  }

  // attach the listener to the message
  attachListener(msg, listener);

  return msg
}

/**
 * Determine if message is already finished.
 *
 * @param {object} msg
 * @return {boolean}
 * @public
 */

function isFinished$1(msg) {
  var socket = msg.socket;

  if (typeof msg.finished === 'boolean') {
    // OutgoingMessage
    return Boolean(msg.finished || (socket && !socket.writable))
  }

  if (typeof msg.complete === 'boolean') {
    // IncomingMessage
    return Boolean(msg.upgrade || !socket || !socket.readable || (msg.complete && !msg.readable))
  }

  // don't know
  return undefined
}

/**
 * Attach a finished listener to the message.
 *
 * @param {object} msg
 * @param {function} callback
 * @private
 */

function attachFinishedListener(msg, callback) {
  var eeMsg;
  var eeSocket;
  var finished = false;

  function onFinish(error) {
    eeMsg.cancel();
    eeSocket.cancel();

    finished = true;
    callback(error);
  }

  // finished on first message event
  eeMsg = eeSocket = first([[msg, 'end', 'finish']], onFinish);

  function onSocket(socket) {
    // remove listener
    msg.removeListener('socket', onSocket);

    if (finished) return
    if (eeMsg !== eeSocket) return

    // finished on first socket event
    eeSocket = first([[socket, 'error', 'close']], onFinish);
  }

  if (msg.socket) {
    // socket already assigned
    onSocket(msg.socket);
    return
  }

  // wait for socket to be assigned
  msg.on('socket', onSocket);

  if (msg.socket === undefined) {
    // node.js 0.8 patch
    patchAssignSocket(msg, onSocket);
  }
}

/**
 * Attach the listener to the message.
 *
 * @param {object} msg
 * @return {function}
 * @private
 */

function attachListener(msg, listener) {
  var attached = msg.__onFinished;

  // create a private single listener with queue
  if (!attached || !attached.queue) {
    attached = msg.__onFinished = createListener(msg);
    attachFinishedListener(msg, attached);
  }

  attached.queue.push(listener);
}

/**
 * Create listener on message.
 *
 * @param {object} msg
 * @return {function}
 * @private
 */

function createListener(msg) {
  function listener(err) {
    if (msg.__onFinished === listener) msg.__onFinished = null;
    if (!listener.queue) return

    var queue = listener.queue;
    listener.queue = null;

    for (var i = 0; i < queue.length; i++) {
      queue[i](err, msg);
    }
  }

  listener.queue = [];

  return listener
}

/**
 * Patch ServerResponse.prototype.assignSocket for node.js 0.8.
 *
 * @param {ServerResponse} res
 * @param {function} callback
 * @private
 */

function patchAssignSocket(res, callback) {
  var assignSocket = res.assignSocket;

  if (typeof assignSocket !== 'function') return

  // res.on('socket', callback) is broken in 0.8
  res.assignSocket = function _assignSocket(socket) {
    assignSocket.call(this, socket);
    callback(socket);
  };
}

var parseurl$1 = {exports: {}};

/*!
 * parseurl
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2014-2017 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module dependencies.
 * @private
 */

var url$3 = require$$0__default$6;
var parse$a = url$3.parse;
var Url = url$3.Url;

/**
 * Module exports.
 * @public
 */

parseurl$1.exports = parseurl;
parseurl$1.exports.original = originalurl;

/**
 * Parse the `req` url with memoization.
 *
 * @param {ServerRequest} req
 * @return {Object}
 * @public
 */

function parseurl (req) {
  var url = req.url;

  if (url === undefined) {
    // URL is undefined
    return undefined
  }

  var parsed = req._parsedUrl;

  if (fresh(url, parsed)) {
    // Return cached URL parse
    return parsed
  }

  // Parse the URL
  parsed = fastparse(url);
  parsed._raw = url;

  return (req._parsedUrl = parsed)
}
/**
 * Parse the `req` original url with fallback and memoization.
 *
 * @param {ServerRequest} req
 * @return {Object}
 * @public
 */

function originalurl (req) {
  var url = req.originalUrl;

  if (typeof url !== 'string') {
    // Fallback
    return parseurl(req)
  }

  var parsed = req._parsedOriginalUrl;

  if (fresh(url, parsed)) {
    // Return cached URL parse
    return parsed
  }

  // Parse the URL
  parsed = fastparse(url);
  parsed._raw = url;

  return (req._parsedOriginalUrl = parsed)
}
/**
 * Parse the `str` url with fast-path short-cut.
 *
 * @param {string} str
 * @return {Object}
 * @private
 */

function fastparse (str) {
  if (typeof str !== 'string' || str.charCodeAt(0) !== 0x2f /* / */) {
    return parse$a(str)
  }

  var pathname = str;
  var query = null;
  var search = null;

  // This takes the regexp from https://github.com/joyent/node/pull/7878
  // Which is /^(\/[^?#\s]*)(\?[^#\s]*)?$/
  // And unrolls it into a for loop
  for (var i = 1; i < str.length; i++) {
    switch (str.charCodeAt(i)) {
      case 0x3f: /* ?  */
        if (search === null) {
          pathname = str.substring(0, i);
          query = str.substring(i + 1);
          search = str.substring(i);
        }
        break
      case 0x09: /* \t */
      case 0x0a: /* \n */
      case 0x0c: /* \f */
      case 0x0d: /* \r */
      case 0x20: /*    */
      case 0x23: /* #  */
      case 0xa0:
      case 0xfeff:
        return parse$a(str)
    }
  }

  var url = Url !== undefined
    ? new Url()
    : {};

  url.path = str;
  url.href = str;
  url.pathname = pathname;

  if (search !== null) {
    url.query = query;
    url.search = search;
  }

  return url
}

/**
 * Determine if parsed is still fresh for url.
 *
 * @param {string} url
 * @param {object} parsedUrl
 * @return {boolean}
 * @private
 */

function fresh (url, parsedUrl) {
  return typeof parsedUrl === 'object' &&
    parsedUrl !== null &&
    (Url === undefined || parsedUrl instanceof Url) &&
    parsedUrl._raw === url
}

var require$$0$3 = {
	"100": "Continue",
	"101": "Switching Protocols",
	"102": "Processing",
	"103": "Early Hints",
	"200": "OK",
	"201": "Created",
	"202": "Accepted",
	"203": "Non-Authoritative Information",
	"204": "No Content",
	"205": "Reset Content",
	"206": "Partial Content",
	"207": "Multi-Status",
	"208": "Already Reported",
	"226": "IM Used",
	"300": "Multiple Choices",
	"301": "Moved Permanently",
	"302": "Found",
	"303": "See Other",
	"304": "Not Modified",
	"305": "Use Proxy",
	"306": "(Unused)",
	"307": "Temporary Redirect",
	"308": "Permanent Redirect",
	"400": "Bad Request",
	"401": "Unauthorized",
	"402": "Payment Required",
	"403": "Forbidden",
	"404": "Not Found",
	"405": "Method Not Allowed",
	"406": "Not Acceptable",
	"407": "Proxy Authentication Required",
	"408": "Request Timeout",
	"409": "Conflict",
	"410": "Gone",
	"411": "Length Required",
	"412": "Precondition Failed",
	"413": "Payload Too Large",
	"414": "URI Too Long",
	"415": "Unsupported Media Type",
	"416": "Range Not Satisfiable",
	"417": "Expectation Failed",
	"418": "I'm a teapot",
	"421": "Misdirected Request",
	"422": "Unprocessable Entity",
	"423": "Locked",
	"424": "Failed Dependency",
	"425": "Unordered Collection",
	"426": "Upgrade Required",
	"428": "Precondition Required",
	"429": "Too Many Requests",
	"431": "Request Header Fields Too Large",
	"451": "Unavailable For Legal Reasons",
	"500": "Internal Server Error",
	"501": "Not Implemented",
	"502": "Bad Gateway",
	"503": "Service Unavailable",
	"504": "Gateway Timeout",
	"505": "HTTP Version Not Supported",
	"506": "Variant Also Negotiates",
	"507": "Insufficient Storage",
	"508": "Loop Detected",
	"509": "Bandwidth Limit Exceeded",
	"510": "Not Extended",
	"511": "Network Authentication Required"
};

/*!
 * statuses
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2016 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module dependencies.
 * @private
 */

var codes = require$$0$3;

/**
 * Module exports.
 * @public
 */

var statuses$1 = status;

// status code to message map
status.STATUS_CODES = codes;

// array of status codes
status.codes = populateStatusesMap(status, codes);

// status codes for redirects
status.redirect = {
  300: true,
  301: true,
  302: true,
  303: true,
  305: true,
  307: true,
  308: true
};

// status codes for empty bodies
status.empty = {
  204: true,
  205: true,
  304: true
};

// status codes for when you should retry the request
status.retry = {
  502: true,
  503: true,
  504: true
};

/**
 * Populate the statuses map for given codes.
 * @private
 */

function populateStatusesMap (statuses, codes) {
  var arr = [];

  Object.keys(codes).forEach(function forEachCode (code) {
    var message = codes[code];
    var status = Number(code);

    // Populate properties
    statuses[status] = message;
    statuses[message] = status;
    statuses[message.toLowerCase()] = status;

    // Add to array
    arr.push(status);
  });

  return arr
}

/**
 * Get the status code.
 *
 * Given a number, this will throw if it is not a known status
 * code, otherwise the code will be returned. Given a string,
 * the string will be parsed for a number and return the code
 * if valid, otherwise will lookup the code assuming this is
 * the status message.
 *
 * @param {string|number} code
 * @returns {number}
 * @public
 */

function status (code) {
  if (typeof code === 'number') {
    if (!status[code]) throw new Error('invalid status code: ' + code)
    return code
  }

  if (typeof code !== 'string') {
    throw new TypeError('code must be a number or string')
  }

  // '403'
  var n = parseInt(code, 10);
  if (!isNaN(n)) {
    if (!status[n]) throw new Error('invalid status code: ' + n)
    return n
  }

  n = status[code.toLowerCase()];
  if (!n) throw new Error('invalid status message: "' + code + '"')
  return n
}

/*!
 * unpipe
 * Copyright(c) 2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

var unpipe_1 = unpipe$1;

/**
 * Determine if there are Node.js pipe-like data listeners.
 * @private
 */

function hasPipeDataListeners(stream) {
  var listeners = stream.listeners('data');

  for (var i = 0; i < listeners.length; i++) {
    if (listeners[i].name === 'ondata') {
      return true
    }
  }

  return false
}

/**
 * Unpipe a stream from all destinations.
 *
 * @param {object} stream
 * @public
 */

function unpipe$1(stream) {
  if (!stream) {
    throw new TypeError('argument stream is required')
  }

  if (typeof stream.unpipe === 'function') {
    // new-style
    stream.unpipe();
    return
  }

  // Node.js 0.8 hack
  if (!hasPipeDataListeners(stream)) {
    return
  }

  var listener;
  var listeners = stream.listeners('close');

  for (var i = 0; i < listeners.length; i++) {
    listener = listeners[i];

    if (listener.name !== 'cleanup' && listener.name !== 'onclose') {
      continue
    }

    // invoke the listener
    listener.call(stream);
  }
}

/*!
 * finalhandler
 * Copyright(c) 2014-2017 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module dependencies.
 * @private
 */

var debug$9 = src.exports('finalhandler');
var encodeUrl = encodeurl;
var escapeHtml = escapeHtml_1;
var onFinished = onFinished$2.exports;
var parseUrl$1 = parseurl$1.exports;
var statuses = statuses$1;
var unpipe = unpipe_1;

/**
 * Module variables.
 * @private
 */

var DOUBLE_SPACE_REGEXP = /\x20{2}/g;
var NEWLINE_REGEXP = /\n/g;

/* istanbul ignore next */
var defer$1 = typeof setImmediate === 'function'
  ? setImmediate
  : function (fn) { process.nextTick(fn.bind.apply(fn, arguments)); };
var isFinished = onFinished.isFinished;

/**
 * Create a minimal HTML document.
 *
 * @param {string} message
 * @private
 */

function createHtmlDocument (message) {
  var body = escapeHtml(message)
    .replace(NEWLINE_REGEXP, '<br>')
    .replace(DOUBLE_SPACE_REGEXP, ' &nbsp;');

  return '<!DOCTYPE html>\n' +
    '<html lang="en">\n' +
    '<head>\n' +
    '<meta charset="utf-8">\n' +
    '<title>Error</title>\n' +
    '</head>\n' +
    '<body>\n' +
    '<pre>' + body + '</pre>\n' +
    '</body>\n' +
    '</html>\n'
}

/**
 * Module exports.
 * @public
 */

var finalhandler_1 = finalhandler$1;

/**
 * Create a function to handle the final response.
 *
 * @param {Request} req
 * @param {Response} res
 * @param {Object} [options]
 * @return {Function}
 * @public
 */

function finalhandler$1 (req, res, options) {
  var opts = options || {};

  // get environment
  var env = opts.env || process.env.NODE_ENV || 'development';

  // get error callback
  var onerror = opts.onerror;

  return function (err) {
    var headers;
    var msg;
    var status;

    // ignore 404 on in-flight response
    if (!err && headersSent(res)) {
      debug$9('cannot 404 after headers sent');
      return
    }

    // unhandled error
    if (err) {
      // respect status code from error
      status = getErrorStatusCode(err);

      if (status === undefined) {
        // fallback to status code on response
        status = getResponseStatusCode(res);
      } else {
        // respect headers from error
        headers = getErrorHeaders(err);
      }

      // get error message
      msg = getErrorMessage(err, status, env);
    } else {
      // not found
      status = 404;
      msg = 'Cannot ' + req.method + ' ' + encodeUrl(getResourceName(req));
    }

    debug$9('default %s', status);

    // schedule onerror callback
    if (err && onerror) {
      defer$1(onerror, err, req, res);
    }

    // cannot actually respond
    if (headersSent(res)) {
      debug$9('cannot %d after headers sent', status);
      req.socket.destroy();
      return
    }

    // send response
    send$2(req, res, status, headers, msg);
  }
}

/**
 * Get headers from Error object.
 *
 * @param {Error} err
 * @return {object}
 * @private
 */

function getErrorHeaders (err) {
  if (!err.headers || typeof err.headers !== 'object') {
    return undefined
  }

  var headers = Object.create(null);
  var keys = Object.keys(err.headers);

  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    headers[key] = err.headers[key];
  }

  return headers
}

/**
 * Get message from Error object, fallback to status message.
 *
 * @param {Error} err
 * @param {number} status
 * @param {string} env
 * @return {string}
 * @private
 */

function getErrorMessage (err, status, env) {
  var msg;

  if (env !== 'production') {
    // use err.stack, which typically includes err.message
    msg = err.stack;

    // fallback to err.toString() when possible
    if (!msg && typeof err.toString === 'function') {
      msg = err.toString();
    }
  }

  return msg || statuses[status]
}

/**
 * Get status code from Error object.
 *
 * @param {Error} err
 * @return {number}
 * @private
 */

function getErrorStatusCode (err) {
  // check err.status
  if (typeof err.status === 'number' && err.status >= 400 && err.status < 600) {
    return err.status
  }

  // check err.statusCode
  if (typeof err.statusCode === 'number' && err.statusCode >= 400 && err.statusCode < 600) {
    return err.statusCode
  }

  return undefined
}

/**
 * Get resource name for the request.
 *
 * This is typically just the original pathname of the request
 * but will fallback to "resource" is that cannot be determined.
 *
 * @param {IncomingMessage} req
 * @return {string}
 * @private
 */

function getResourceName (req) {
  try {
    return parseUrl$1.original(req).pathname
  } catch (e) {
    return 'resource'
  }
}

/**
 * Get status code from response.
 *
 * @param {OutgoingMessage} res
 * @return {number}
 * @private
 */

function getResponseStatusCode (res) {
  var status = res.statusCode;

  // default status code to 500 if outside valid range
  if (typeof status !== 'number' || status < 400 || status > 599) {
    status = 500;
  }

  return status
}

/**
 * Determine if the response headers have been sent.
 *
 * @param {object} res
 * @returns {boolean}
 * @private
 */

function headersSent (res) {
  return typeof res.headersSent !== 'boolean'
    ? Boolean(res._header)
    : res.headersSent
}

/**
 * Send response.
 *
 * @param {IncomingMessage} req
 * @param {OutgoingMessage} res
 * @param {number} status
 * @param {object} headers
 * @param {string} message
 * @private
 */

function send$2 (req, res, status, headers, message) {
  function write () {
    // response body
    var body = createHtmlDocument(message);

    // response status
    res.statusCode = status;
    res.statusMessage = statuses[status];

    // response headers
    setHeaders(res, headers);

    // security headers
    res.setHeader('Content-Security-Policy', "default-src 'none'");
    res.setHeader('X-Content-Type-Options', 'nosniff');

    // standard headers
    res.setHeader('Content-Type', 'text/html; charset=utf-8');
    res.setHeader('Content-Length', Buffer.byteLength(body, 'utf8'));

    if (req.method === 'HEAD') {
      res.end();
      return
    }

    res.end(body, 'utf8');
  }

  if (isFinished(req)) {
    write();
    return
  }

  // unpipe everything from the request
  unpipe(req);

  // flush the request
  onFinished(req, write);
  req.resume();
}

/**
 * Set response headers from an object.
 *
 * @param {OutgoingMessage} res
 * @param {object} headers
 * @private
 */

function setHeaders (res, headers) {
  if (!headers) {
    return
  }

  var keys = Object.keys(headers);
  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    res.setHeader(key, headers[key]);
  }
}

var utilsMerge = {exports: {}};

/**
 * Merge object b with object a.
 *
 *     var a = { foo: 'bar' }
 *       , b = { bar: 'baz' };
 *
 *     merge(a, b);
 *     // => { foo: 'bar', bar: 'baz' }
 *
 * @param {Object} a
 * @param {Object} b
 * @return {Object}
 * @api public
 */

(function (module, exports) {
module.exports = function(a, b){
  if (a && b) {
    for (var key in b) {
      a[key] = b[key];
    }
  }
  return a;
};
}(utilsMerge));

/*!
 * connect
 * Copyright(c) 2010 Sencha Inc.
 * Copyright(c) 2011 TJ Holowaychuk
 * Copyright(c) 2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module dependencies.
 * @private
 */

var debug$8 = src.exports('connect:dispatcher');
var EventEmitter$3 = require$$0__default$5.EventEmitter;
var finalhandler = finalhandler_1;
var http$4 = require$$1__default$1;
var merge = utilsMerge.exports;
var parseUrl = parseurl$1.exports;

/**
 * Module exports.
 * @public
 */

var connect = createServer$1;

/**
 * Module variables.
 * @private
 */

var env$1 = process.env.NODE_ENV || 'development';
var proto = {};

/* istanbul ignore next */
var defer = typeof setImmediate === 'function'
  ? setImmediate
  : function(fn){ process.nextTick(fn.bind.apply(fn, arguments)); };

/**
 * Create a new connect server.
 *
 * @return {function}
 * @public
 */

function createServer$1() {
  function app(req, res, next){ app.handle(req, res, next); }
  merge(app, proto);
  merge(app, EventEmitter$3.prototype);
  app.route = '/';
  app.stack = [];
  return app;
}

/**
 * Utilize the given middleware `handle` to the given `route`,
 * defaulting to _/_. This "route" is the mount-point for the
 * middleware, when given a value other than _/_ the middleware
 * is only effective when that segment is present in the request's
 * pathname.
 *
 * For example if we were to mount a function at _/admin_, it would
 * be invoked on _/admin_, and _/admin/settings_, however it would
 * not be invoked for _/_, or _/posts_.
 *
 * @param {String|Function|Server} route, callback or server
 * @param {Function|Server} callback or server
 * @return {Server} for chaining
 * @public
 */

proto.use = function use(route, fn) {
  var handle = fn;
  var path = route;

  // default route to '/'
  if (typeof route !== 'string') {
    handle = route;
    path = '/';
  }

  // wrap sub-apps
  if (typeof handle.handle === 'function') {
    var server = handle;
    server.route = path;
    handle = function (req, res, next) {
      server.handle(req, res, next);
    };
  }

  // wrap vanilla http.Servers
  if (handle instanceof http$4.Server) {
    handle = handle.listeners('request')[0];
  }

  // strip trailing slash
  if (path[path.length - 1] === '/') {
    path = path.slice(0, -1);
  }

  // add the middleware
  debug$8('use %s %s', path || '/', handle.name || 'anonymous');
  this.stack.push({ route: path, handle: handle });

  return this;
};

/**
 * Handle server requests, punting them down
 * the middleware stack.
 *
 * @private
 */

proto.handle = function handle(req, res, out) {
  var index = 0;
  var protohost = getProtohost(req.url) || '';
  var removed = '';
  var slashAdded = false;
  var stack = this.stack;

  // final function handler
  var done = out || finalhandler(req, res, {
    env: env$1,
    onerror: logerror
  });

  // store the original URL
  req.originalUrl = req.originalUrl || req.url;

  function next(err) {
    if (slashAdded) {
      req.url = req.url.substr(1);
      slashAdded = false;
    }

    if (removed.length !== 0) {
      req.url = protohost + removed + req.url.substr(protohost.length);
      removed = '';
    }

    // next callback
    var layer = stack[index++];

    // all done
    if (!layer) {
      defer(done, err);
      return;
    }

    // route data
    var path = parseUrl(req).pathname || '/';
    var route = layer.route;

    // skip this layer if the route doesn't match
    if (path.toLowerCase().substr(0, route.length) !== route.toLowerCase()) {
      return next(err);
    }

    // skip if route match does not border "/", ".", or end
    var c = path.length > route.length && path[route.length];
    if (c && c !== '/' && c !== '.') {
      return next(err);
    }

    // trim off the part of the url that matches the route
    if (route.length !== 0 && route !== '/') {
      removed = route;
      req.url = protohost + req.url.substr(protohost.length + removed.length);

      // ensure leading slash
      if (!protohost && req.url[0] !== '/') {
        req.url = '/' + req.url;
        slashAdded = true;
      }
    }

    // call the layer handle
    call(layer.handle, route, err, req, res, next);
  }

  next();
};

/**
 * Listen for connections.
 *
 * This method takes the same arguments
 * as node's `http.Server#listen()`.
 *
 * HTTP and HTTPS:
 *
 * If you run your application both as HTTP
 * and HTTPS you may wrap them individually,
 * since your Connect "server" is really just
 * a JavaScript `Function`.
 *
 *      var connect = require('connect')
 *        , http = require('http')
 *        , https = require('https');
 *
 *      var app = connect();
 *
 *      http.createServer(app).listen(80);
 *      https.createServer(options, app).listen(443);
 *
 * @return {http.Server}
 * @api public
 */

proto.listen = function listen() {
  var server = http$4.createServer(this);
  return server.listen.apply(server, arguments);
};

/**
 * Invoke a route handle.
 * @private
 */

function call(handle, route, err, req, res, next) {
  var arity = handle.length;
  var error = err;
  var hasError = Boolean(err);

  debug$8('%s %s : %s', handle.name || '<anonymous>', route, req.originalUrl);

  try {
    if (hasError && arity === 4) {
      // error-handling middleware
      handle(err, req, res, next);
      return;
    } else if (!hasError && arity < 4) {
      // request-handling middleware
      handle(req, res, next);
      return;
    }
  } catch (e) {
    // replace the error
    error = e;
  }

  // continue
  next(error);
}

/**
 * Log error using console.error.
 *
 * @param {Error} err
 * @private
 */

function logerror(err) {
  if (env$1 !== 'test') console.error(err.stack || err.toString());
}

/**
 * Get get protocol + host for a URL.
 *
 * @param {string} url
 * @private
 */

function getProtohost(url) {
  if (url.length === 0 || url[0] === '/') {
    return undefined;
  }

  var fqdnIndex = url.indexOf('://');

  return fqdnIndex !== -1 && url.lastIndexOf('?', fqdnIndex) === -1
    ? url.substr(0, url.indexOf('/', 3 + fqdnIndex))
    : undefined;
}

var lib$1 = {exports: {}};

/*
object-assign
(c) Sindre Sorhus
@license MIT
*/
/* eslint-disable no-unused-vars */
var getOwnPropertySymbols = Object.getOwnPropertySymbols;
var hasOwnProperty = Object.prototype.hasOwnProperty;
var propIsEnumerable = Object.prototype.propertyIsEnumerable;

function toObject(val) {
	if (val === null || val === undefined) {
		throw new TypeError('Object.assign cannot be called with null or undefined');
	}

	return Object(val);
}

function shouldUseNative() {
	try {
		if (!Object.assign) {
			return false;
		}

		// Detect buggy property enumeration order in older V8 versions.

		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
		test1[5] = 'de';
		if (Object.getOwnPropertyNames(test1)[0] === '5') {
			return false;
		}

		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
		var test2 = {};
		for (var i = 0; i < 10; i++) {
			test2['_' + String.fromCharCode(i)] = i;
		}
		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
			return test2[n];
		});
		if (order2.join('') !== '0123456789') {
			return false;
		}

		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
		var test3 = {};
		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
			test3[letter] = letter;
		});
		if (Object.keys(Object.assign({}, test3)).join('') !==
				'abcdefghijklmnopqrst') {
			return false;
		}

		return true;
	} catch (err) {
		// We don't expect any of the above to throw, but better to be safe.
		return false;
	}
}

var objectAssign = shouldUseNative() ? Object.assign : function (target, source) {
	var from;
	var to = toObject(target);
	var symbols;

	for (var s = 1; s < arguments.length; s++) {
		from = Object(arguments[s]);

		for (var key in from) {
			if (hasOwnProperty.call(from, key)) {
				to[key] = from[key];
			}
		}

		if (getOwnPropertySymbols) {
			symbols = getOwnPropertySymbols(from);
			for (var i = 0; i < symbols.length; i++) {
				if (propIsEnumerable.call(from, symbols[i])) {
					to[symbols[i]] = from[symbols[i]];
				}
			}
		}
	}

	return to;
};

var vary$2 = {exports: {}};

/*!
 * vary
 * Copyright(c) 2014-2017 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 */

vary$2.exports = vary$1;
vary$2.exports.append = append;

/**
 * RegExp to match field-name in RFC 7230 sec 3.2
 *
 * field-name    = token
 * token         = 1*tchar
 * tchar         = "!" / "#" / "$" / "%" / "&" / "'" / "*"
 *               / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
 *               / DIGIT / ALPHA
 *               ; any VCHAR, except delimiters
 */

var FIELD_NAME_REGEXP = /^[!#$%&'*+\-.^_`|~0-9A-Za-z]+$/;

/**
 * Append a field to a vary header.
 *
 * @param {String} header
 * @param {String|Array} field
 * @return {String}
 * @public
 */

function append (header, field) {
  if (typeof header !== 'string') {
    throw new TypeError('header argument is required')
  }

  if (!field) {
    throw new TypeError('field argument is required')
  }

  // get fields array
  var fields = !Array.isArray(field)
    ? parse$9(String(field))
    : field;

  // assert on invalid field names
  for (var j = 0; j < fields.length; j++) {
    if (!FIELD_NAME_REGEXP.test(fields[j])) {
      throw new TypeError('field argument contains an invalid header name')
    }
  }

  // existing, unspecified vary
  if (header === '*') {
    return header
  }

  // enumerate current values
  var val = header;
  var vals = parse$9(header.toLowerCase());

  // unspecified vary
  if (fields.indexOf('*') !== -1 || vals.indexOf('*') !== -1) {
    return '*'
  }

  for (var i = 0; i < fields.length; i++) {
    var fld = fields[i].toLowerCase();

    // append value (case-preserving)
    if (vals.indexOf(fld) === -1) {
      vals.push(fld);
      val = val
        ? val + ', ' + fields[i]
        : fields[i];
    }
  }

  return val
}

/**
 * Parse a vary header into an array.
 *
 * @param {String} header
 * @return {Array}
 * @private
 */

function parse$9 (header) {
  var end = 0;
  var list = [];
  var start = 0;

  // gather tokens
  for (var i = 0, len = header.length; i < len; i++) {
    switch (header.charCodeAt(i)) {
      case 0x20: /*   */
        if (start === end) {
          start = end = i + 1;
        }
        break
      case 0x2c: /* , */
        list.push(header.substring(start, end));
        start = end = i + 1;
        break
      default:
        end = i + 1;
        break
    }
  }

  // final token
  list.push(header.substring(start, end));

  return list
}

/**
 * Mark that a request is varied on a header field.
 *
 * @param {Object} res
 * @param {String|Array} field
 * @public
 */

function vary$1 (res, field) {
  if (!res || !res.getHeader || !res.setHeader) {
    // quack quack
    throw new TypeError('res argument is required')
  }

  // get existing header
  var val = res.getHeader('Vary') || '';
  var header = Array.isArray(val)
    ? val.join(', ')
    : String(val);

  // set new header
  if ((val = append(header, field))) {
    res.setHeader('Vary', val);
  }
}

(function () {

  var assign = objectAssign;
  var vary = vary$2.exports;

  var defaults = {
    origin: '*',
    methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
    preflightContinue: false,
    optionsSuccessStatus: 204
  };

  function isString(s) {
    return typeof s === 'string' || s instanceof String;
  }

  function isOriginAllowed(origin, allowedOrigin) {
    if (Array.isArray(allowedOrigin)) {
      for (var i = 0; i < allowedOrigin.length; ++i) {
        if (isOriginAllowed(origin, allowedOrigin[i])) {
          return true;
        }
      }
      return false;
    } else if (isString(allowedOrigin)) {
      return origin === allowedOrigin;
    } else if (allowedOrigin instanceof RegExp) {
      return allowedOrigin.test(origin);
    } else {
      return !!allowedOrigin;
    }
  }

  function configureOrigin(options, req) {
    var requestOrigin = req.headers.origin,
      headers = [],
      isAllowed;

    if (!options.origin || options.origin === '*') {
      // allow any origin
      headers.push([{
        key: 'Access-Control-Allow-Origin',
        value: '*'
      }]);
    } else if (isString(options.origin)) {
      // fixed origin
      headers.push([{
        key: 'Access-Control-Allow-Origin',
        value: options.origin
      }]);
      headers.push([{
        key: 'Vary',
        value: 'Origin'
      }]);
    } else {
      isAllowed = isOriginAllowed(requestOrigin, options.origin);
      // reflect origin
      headers.push([{
        key: 'Access-Control-Allow-Origin',
        value: isAllowed ? requestOrigin : false
      }]);
      headers.push([{
        key: 'Vary',
        value: 'Origin'
      }]);
    }

    return headers;
  }

  function configureMethods(options) {
    var methods = options.methods;
    if (methods.join) {
      methods = options.methods.join(','); // .methods is an array, so turn it into a string
    }
    return {
      key: 'Access-Control-Allow-Methods',
      value: methods
    };
  }

  function configureCredentials(options) {
    if (options.credentials === true) {
      return {
        key: 'Access-Control-Allow-Credentials',
        value: 'true'
      };
    }
    return null;
  }

  function configureAllowedHeaders(options, req) {
    var allowedHeaders = options.allowedHeaders || options.headers;
    var headers = [];

    if (!allowedHeaders) {
      allowedHeaders = req.headers['access-control-request-headers']; // .headers wasn't specified, so reflect the request headers
      headers.push([{
        key: 'Vary',
        value: 'Access-Control-Request-Headers'
      }]);
    } else if (allowedHeaders.join) {
      allowedHeaders = allowedHeaders.join(','); // .headers is an array, so turn it into a string
    }
    if (allowedHeaders && allowedHeaders.length) {
      headers.push([{
        key: 'Access-Control-Allow-Headers',
        value: allowedHeaders
      }]);
    }

    return headers;
  }

  function configureExposedHeaders(options) {
    var headers = options.exposedHeaders;
    if (!headers) {
      return null;
    } else if (headers.join) {
      headers = headers.join(','); // .headers is an array, so turn it into a string
    }
    if (headers && headers.length) {
      return {
        key: 'Access-Control-Expose-Headers',
        value: headers
      };
    }
    return null;
  }

  function configureMaxAge(options) {
    var maxAge = (typeof options.maxAge === 'number' || options.maxAge) && options.maxAge.toString();
    if (maxAge && maxAge.length) {
      return {
        key: 'Access-Control-Max-Age',
        value: maxAge
      };
    }
    return null;
  }

  function applyHeaders(headers, res) {
    for (var i = 0, n = headers.length; i < n; i++) {
      var header = headers[i];
      if (header) {
        if (Array.isArray(header)) {
          applyHeaders(header, res);
        } else if (header.key === 'Vary' && header.value) {
          vary(res, header.value);
        } else if (header.value) {
          res.setHeader(header.key, header.value);
        }
      }
    }
  }

  function cors(options, req, res, next) {
    var headers = [],
      method = req.method && req.method.toUpperCase && req.method.toUpperCase();

    if (method === 'OPTIONS') {
      // preflight
      headers.push(configureOrigin(options, req));
      headers.push(configureCredentials(options));
      headers.push(configureMethods(options));
      headers.push(configureAllowedHeaders(options, req));
      headers.push(configureMaxAge(options));
      headers.push(configureExposedHeaders(options));
      applyHeaders(headers, res);

      if (options.preflightContinue) {
        next();
      } else {
        // Safari (and potentially other browsers) need content-length 0,
        //   for 204 or they just hang waiting for a body
        res.statusCode = options.optionsSuccessStatus;
        res.setHeader('Content-Length', '0');
        res.end();
      }
    } else {
      // actual response
      headers.push(configureOrigin(options, req));
      headers.push(configureCredentials(options));
      headers.push(configureExposedHeaders(options));
      applyHeaders(headers, res);
      next();
    }
  }

  function middlewareWrapper(o) {
    // if options are static (either via defaults or custom options passed in), wrap in a function
    var optionsCallback = null;
    if (typeof o === 'function') {
      optionsCallback = o;
    } else {
      optionsCallback = function (req, cb) {
        cb(null, o);
      };
    }

    return function corsMiddleware(req, res, next) {
      optionsCallback(req, function (err, options) {
        if (err) {
          next(err);
        } else {
          var corsOptions = assign({}, defaults, options);
          var originCallback = null;
          if (corsOptions.origin && typeof corsOptions.origin === 'function') {
            originCallback = corsOptions.origin;
          } else if (corsOptions.origin) {
            originCallback = function (origin, cb) {
              cb(null, corsOptions.origin);
            };
          }

          if (originCallback) {
            originCallback(req.headers.origin, function (err2, origin) {
              if (err2 || !origin) {
                next(err2);
              } else {
                corsOptions.origin = origin;
                cors(corsOptions, req, res, next);
              }
            });
          } else {
            next();
          }
        }
      });
    };
  }

  // can pass either an options hash, an options delegate, or nothing
  lib$1.exports = middlewareWrapper;

}());

var corsMiddleware = lib$1.exports;

var chokidar = {};

const fs$b = fs__default;
const { Readable } = require$$0__default$4;
const sysPath$3 = path__default;
const { promisify: promisify$4 } = require$$0__default$2;
const picomatch$1 = picomatch$3;

const readdir$1 = promisify$4(fs$b.readdir);
const stat$3 = promisify$4(fs$b.stat);
const lstat$2 = promisify$4(fs$b.lstat);
const realpath$1 = promisify$4(fs$b.realpath);

/**
 * @typedef {Object} EntryInfo
 * @property {String} path
 * @property {String} fullPath
 * @property {fs.Stats=} stats
 * @property {fs.Dirent=} dirent
 * @property {String} basename
 */

const BANG$2 = '!';
const RECURSIVE_ERROR_CODE = 'READDIRP_RECURSIVE_ERROR';
const NORMAL_FLOW_ERRORS = new Set(['ENOENT', 'EPERM', 'EACCES', 'ELOOP', RECURSIVE_ERROR_CODE]);
const FILE_TYPE = 'files';
const DIR_TYPE = 'directories';
const FILE_DIR_TYPE = 'files_directories';
const EVERYTHING_TYPE = 'all';
const ALL_TYPES = [FILE_TYPE, DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE];

const isNormalFlowError = error => NORMAL_FLOW_ERRORS.has(error.code);
const [maj, min] = process.versions.node.split('.').slice(0, 2).map(n => Number.parseInt(n, 10));
const wantBigintFsStats = process.platform === 'win32' && (maj > 10 || (maj === 10 && min >= 5));

const normalizeFilter = filter => {
  if (filter === undefined) return;
  if (typeof filter === 'function') return filter;

  if (typeof filter === 'string') {
    const glob = picomatch$1(filter.trim());
    return entry => glob(entry.basename);
  }

  if (Array.isArray(filter)) {
    const positive = [];
    const negative = [];
    for (const item of filter) {
      const trimmed = item.trim();
      if (trimmed.charAt(0) === BANG$2) {
        negative.push(picomatch$1(trimmed.slice(1)));
      } else {
        positive.push(picomatch$1(trimmed));
      }
    }

    if (negative.length > 0) {
      if (positive.length > 0) {
        return entry =>
          positive.some(f => f(entry.basename)) && !negative.some(f => f(entry.basename));
      }
      return entry => !negative.some(f => f(entry.basename));
    }
    return entry => positive.some(f => f(entry.basename));
  }
};

class ReaddirpStream extends Readable {
  static get defaultOptions() {
    return {
      root: '.',
      /* eslint-disable no-unused-vars */
      fileFilter: (path) => true,
      directoryFilter: (path) => true,
      /* eslint-enable no-unused-vars */
      type: FILE_TYPE,
      lstat: false,
      depth: 2147483648,
      alwaysStat: false
    };
  }

  constructor(options = {}) {
    super({
      objectMode: true,
      autoDestroy: true,
      highWaterMark: options.highWaterMark || 4096
    });
    const opts = { ...ReaddirpStream.defaultOptions, ...options };
    const { root, type } = opts;

    this._fileFilter = normalizeFilter(opts.fileFilter);
    this._directoryFilter = normalizeFilter(opts.directoryFilter);

    const statMethod = opts.lstat ? lstat$2 : stat$3;
    // Use bigint stats if it's windows and stat() supports options (node 10+).
    if (wantBigintFsStats) {
      this._stat = path => statMethod(path, { bigint: true });
    } else {
      this._stat = statMethod;
    }

    this._maxDepth = opts.depth;
    this._wantsDir = [DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type);
    this._wantsFile = [FILE_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type);
    this._wantsEverything = type === EVERYTHING_TYPE;
    this._root = sysPath$3.resolve(root);
    this._isDirent = ('Dirent' in fs$b) && !opts.alwaysStat;
    this._statsProp = this._isDirent ? 'dirent' : 'stats';
    this._rdOptions = { encoding: 'utf8', withFileTypes: this._isDirent };

    // Launch stream with one parent, the root dir.
    this.parents = [this._exploreDir(root, 1)];
    this.reading = false;
    this.parent = undefined;
  }

  async _read(batch) {
    if (this.reading) return;
    this.reading = true;

    try {
      while (!this.destroyed && batch > 0) {
        const { path, depth, files = [] } = this.parent || {};

        if (files.length > 0) {
          const slice = files.splice(0, batch).map(dirent => this._formatEntry(dirent, path));
          for (const entry of await Promise.all(slice)) {
            if (this.destroyed) return;

            const entryType = await this._getEntryType(entry);
            if (entryType === 'directory' && this._directoryFilter(entry)) {
              if (depth <= this._maxDepth) {
                this.parents.push(this._exploreDir(entry.fullPath, depth + 1));
              }

              if (this._wantsDir) {
                this.push(entry);
                batch--;
              }
            } else if ((entryType === 'file' || this._includeAsFile(entry)) && this._fileFilter(entry)) {
              if (this._wantsFile) {
                this.push(entry);
                batch--;
              }
            }
          }
        } else {
          const parent = this.parents.pop();
          if (!parent) {
            this.push(null);
            break;
          }
          this.parent = await parent;
          if (this.destroyed) return;
        }
      }
    } catch (error) {
      this.destroy(error);
    } finally {
      this.reading = false;
    }
  }

  async _exploreDir(path, depth) {
    let files;
    try {
      files = await readdir$1(path, this._rdOptions);
    } catch (error) {
      this._onError(error);
    }
    return { files, depth, path };
  }

  async _formatEntry(dirent, path) {
    let entry;
    try {
      const basename = this._isDirent ? dirent.name : dirent;
      const fullPath = sysPath$3.resolve(sysPath$3.join(path, basename));
      entry = { path: sysPath$3.relative(this._root, fullPath), fullPath, basename };
      entry[this._statsProp] = this._isDirent ? dirent : await this._stat(fullPath);
    } catch (err) {
      this._onError(err);
    }
    return entry;
  }

  _onError(err) {
    if (isNormalFlowError(err) && !this.destroyed) {
      this.emit('warn', err);
    } else {
      this.destroy(err);
    }
  }

  async _getEntryType(entry) {
    // entry may be undefined, because a warning or an error were emitted
    // and the statsProp is undefined
    const stats = entry && entry[this._statsProp];
    if (!stats) {
      return;
    }
    if (stats.isFile()) {
      return 'file';
    }
    if (stats.isDirectory()) {
      return 'directory';
    }
    if (stats && stats.isSymbolicLink()) {
      const full = entry.fullPath;
      try {
        const entryRealPath = await realpath$1(full);
        const entryRealPathStats = await lstat$2(entryRealPath);
        if (entryRealPathStats.isFile()) {
          return 'file';
        }
        if (entryRealPathStats.isDirectory()) {
          const len = entryRealPath.length;
          if (full.startsWith(entryRealPath) && full.substr(len, 1) === sysPath$3.sep) {
            const recursiveError = new Error(
              `Circular symlink detected: "${full}" points to "${entryRealPath}"`
            );
            recursiveError.code = RECURSIVE_ERROR_CODE;
            return this._onError(recursiveError);
          }
          return 'directory';
        }
      } catch (error) {
        this._onError(error);
      }
    }
  }

  _includeAsFile(entry) {
    const stats = entry && entry[this._statsProp];

    return stats && this._wantsEverything && !stats.isDirectory();
  }
}

/**
 * @typedef {Object} ReaddirpArguments
 * @property {Function=} fileFilter
 * @property {Function=} directoryFilter
 * @property {String=} type
 * @property {Number=} depth
 * @property {String=} root
 * @property {Boolean=} lstat
 * @property {Boolean=} bigint
 */

/**
 * Main function which ends up calling readdirRec and reads all files and directories in given root recursively.
 * @param {String} root Root directory
 * @param {ReaddirpArguments=} options Options to specify root (start directory), filters and recursion depth
 */
const readdirp$1 = (root, options = {}) => {
  let type = options.entryType || options.type;
  if (type === 'both') type = FILE_DIR_TYPE; // backwards-compatibility
  if (type) options.type = type;
  if (!root) {
    throw new Error('readdirp: root argument is required. Usage: readdirp(root, options)');
  } else if (typeof root !== 'string') {
    throw new TypeError('readdirp: root argument must be a string. Usage: readdirp(root, options)');
  } else if (type && !ALL_TYPES.includes(type)) {
    throw new Error(`readdirp: Invalid type passed. Use one of ${ALL_TYPES.join(', ')}`);
  }

  options.root = root;
  return new ReaddirpStream(options);
};

const readdirpPromise = (root, options = {}) => {
  return new Promise((resolve, reject) => {
    const files = [];
    readdirp$1(root, options)
      .on('data', entry => files.push(entry))
      .on('end', () => resolve(files))
      .on('error', error => reject(error));
  });
};

readdirp$1.promise = readdirpPromise;
readdirp$1.ReaddirpStream = ReaddirpStream;
readdirp$1.default = readdirp$1;

var readdirp_1 = readdirp$1;

var anymatch$2 = {exports: {}};

/*!
 * normalize-path <https://github.com/jonschlinkert/normalize-path>
 *
 * Copyright (c) 2014-2018, Jon Schlinkert.
 * Released under the MIT License.
 */

var normalizePath$2 = function(path, stripTrailing) {
  if (typeof path !== 'string') {
    throw new TypeError('expected path to be a string');
  }

  if (path === '\\' || path === '/') return '/';

  var len = path.length;
  if (len <= 1) return path;

  // ensure that win32 namespaces has two leading slashes, so that the path is
  // handled properly by the win32 version of path.parse() after being normalized
  // https://msdn.microsoft.com/library/windows/desktop/aa365247(v=vs.85).aspx#namespaces
  var prefix = '';
  if (len > 4 && path[3] === '\\') {
    var ch = path[2];
    if ((ch === '?' || ch === '.') && path.slice(0, 2) === '\\\\') {
      path = path.slice(2);
      prefix = '//';
    }
  }

  var segs = path.split(/[/\\]+/);
  if (stripTrailing !== false && segs[segs.length - 1] === '') {
    segs.pop();
  }
  return prefix + segs.join('/');
};

Object.defineProperty(anymatch$2.exports, "__esModule", { value: true });

const picomatch = picomatch$3;
const normalizePath$1 = normalizePath$2;

/**
 * @typedef {(testString: string) => boolean} AnymatchFn
 * @typedef {string|RegExp|AnymatchFn} AnymatchPattern
 * @typedef {AnymatchPattern|AnymatchPattern[]} AnymatchMatcher
 */
const BANG$1 = '!';
const DEFAULT_OPTIONS = {returnIndex: false};
const arrify$1 = (item) => Array.isArray(item) ? item : [item];

/**
 * @param {AnymatchPattern} matcher
 * @param {object} options
 * @returns {AnymatchFn}
 */
const createPattern = (matcher, options) => {
  if (typeof matcher === 'function') {
    return matcher;
  }
  if (typeof matcher === 'string') {
    const glob = picomatch(matcher, options);
    return (string) => matcher === string || glob(string);
  }
  if (matcher instanceof RegExp) {
    return (string) => matcher.test(string);
  }
  return (string) => false;
};

/**
 * @param {Array<Function>} patterns
 * @param {Array<Function>} negPatterns
 * @param {String|Array} args
 * @param {Boolean} returnIndex
 * @returns {boolean|number}
 */
const matchPatterns = (patterns, negPatterns, args, returnIndex) => {
  const isList = Array.isArray(args);
  const _path = isList ? args[0] : args;
  if (!isList && typeof _path !== 'string') {
    throw new TypeError('anymatch: second argument must be a string: got ' +
      Object.prototype.toString.call(_path))
  }
  const path = normalizePath$1(_path);

  for (let index = 0; index < negPatterns.length; index++) {
    const nglob = negPatterns[index];
    if (nglob(path)) {
      return returnIndex ? -1 : false;
    }
  }

  const applied = isList && [path].concat(args.slice(1));
  for (let index = 0; index < patterns.length; index++) {
    const pattern = patterns[index];
    if (isList ? pattern(...applied) : pattern(path)) {
      return returnIndex ? index : true;
    }
  }

  return returnIndex ? -1 : false;
};

/**
 * @param {AnymatchMatcher} matchers
 * @param {Array|string} testString
 * @param {object} options
 * @returns {boolean|number|Function}
 */
const anymatch$1 = (matchers, testString, options = DEFAULT_OPTIONS) => {
  if (matchers == null) {
    throw new TypeError('anymatch: specify first argument');
  }
  const opts = typeof options === 'boolean' ? {returnIndex: options} : options;
  const returnIndex = opts.returnIndex || false;

  // Early cache for matchers.
  const mtchers = arrify$1(matchers);
  const negatedGlobs = mtchers
    .filter(item => typeof item === 'string' && item.charAt(0) === BANG$1)
    .map(item => item.slice(1))
    .map(item => picomatch(item, opts));
  const patterns = mtchers
    .filter(item => typeof item !== 'string' || (typeof item === 'string' && item.charAt(0) !== BANG$1))
    .map(matcher => createPattern(matcher, opts));

  if (testString == null) {
    return (testString, ri = false) => {
      const returnIndex = typeof ri === 'boolean' ? ri : false;
      return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
    }
  }

  return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
};

anymatch$1.default = anymatch$1;
anymatch$2.exports = anymatch$1;

var require$$0$2 = [
	"3dm",
	"3ds",
	"3g2",
	"3gp",
	"7z",
	"a",
	"aac",
	"adp",
	"ai",
	"aif",
	"aiff",
	"alz",
	"ape",
	"apk",
	"appimage",
	"ar",
	"arj",
	"asf",
	"au",
	"avi",
	"bak",
	"baml",
	"bh",
	"bin",
	"bk",
	"bmp",
	"btif",
	"bz2",
	"bzip2",
	"cab",
	"caf",
	"cgm",
	"class",
	"cmx",
	"cpio",
	"cr2",
	"cur",
	"dat",
	"dcm",
	"deb",
	"dex",
	"djvu",
	"dll",
	"dmg",
	"dng",
	"doc",
	"docm",
	"docx",
	"dot",
	"dotm",
	"dra",
	"DS_Store",
	"dsk",
	"dts",
	"dtshd",
	"dvb",
	"dwg",
	"dxf",
	"ecelp4800",
	"ecelp7470",
	"ecelp9600",
	"egg",
	"eol",
	"eot",
	"epub",
	"exe",
	"f4v",
	"fbs",
	"fh",
	"fla",
	"flac",
	"flatpak",
	"fli",
	"flv",
	"fpx",
	"fst",
	"fvt",
	"g3",
	"gh",
	"gif",
	"graffle",
	"gz",
	"gzip",
	"h261",
	"h263",
	"h264",
	"icns",
	"ico",
	"ief",
	"img",
	"ipa",
	"iso",
	"jar",
	"jpeg",
	"jpg",
	"jpgv",
	"jpm",
	"jxr",
	"key",
	"ktx",
	"lha",
	"lib",
	"lvp",
	"lz",
	"lzh",
	"lzma",
	"lzo",
	"m3u",
	"m4a",
	"m4v",
	"mar",
	"mdi",
	"mht",
	"mid",
	"midi",
	"mj2",
	"mka",
	"mkv",
	"mmr",
	"mng",
	"mobi",
	"mov",
	"movie",
	"mp3",
	"mp4",
	"mp4a",
	"mpeg",
	"mpg",
	"mpga",
	"mxu",
	"nef",
	"npx",
	"numbers",
	"nupkg",
	"o",
	"odp",
	"ods",
	"odt",
	"oga",
	"ogg",
	"ogv",
	"otf",
	"ott",
	"pages",
	"pbm",
	"pcx",
	"pdb",
	"pdf",
	"pea",
	"pgm",
	"pic",
	"png",
	"pnm",
	"pot",
	"potm",
	"potx",
	"ppa",
	"ppam",
	"ppm",
	"pps",
	"ppsm",
	"ppsx",
	"ppt",
	"pptm",
	"pptx",
	"psd",
	"pya",
	"pyc",
	"pyo",
	"pyv",
	"qt",
	"rar",
	"ras",
	"raw",
	"resources",
	"rgb",
	"rip",
	"rlc",
	"rmf",
	"rmvb",
	"rpm",
	"rtf",
	"rz",
	"s3m",
	"s7z",
	"scpt",
	"sgi",
	"shar",
	"snap",
	"sil",
	"sketch",
	"slk",
	"smv",
	"snk",
	"so",
	"stl",
	"suo",
	"sub",
	"swf",
	"tar",
	"tbz",
	"tbz2",
	"tga",
	"tgz",
	"thmx",
	"tif",
	"tiff",
	"tlz",
	"ttc",
	"ttf",
	"txz",
	"udf",
	"uvh",
	"uvi",
	"uvm",
	"uvp",
	"uvs",
	"uvu",
	"viv",
	"vob",
	"war",
	"wav",
	"wax",
	"wbmp",
	"wdp",
	"weba",
	"webm",
	"webp",
	"whl",
	"wim",
	"wm",
	"wma",
	"wmv",
	"wmx",
	"woff",
	"woff2",
	"wrm",
	"wvx",
	"xbm",
	"xif",
	"xla",
	"xlam",
	"xls",
	"xlsb",
	"xlsm",
	"xlsx",
	"xlt",
	"xltm",
	"xltx",
	"xm",
	"xmind",
	"xpi",
	"xpm",
	"xwd",
	"xz",
	"z",
	"zip",
	"zipx"
];

var binaryExtensions$1 = require$$0$2;

const path$a = path__default;
const binaryExtensions = binaryExtensions$1;

const extensions = new Set(binaryExtensions);

var isBinaryPath$1 = filePath => extensions.has(path$a.extname(filePath).slice(1).toLowerCase());

var constants$1 = {};

(function (exports) {

const {sep} = path__default;
const {platform} = process;
const os = require$$0__default$1;

exports.EV_ALL = 'all';
exports.EV_READY = 'ready';
exports.EV_ADD = 'add';
exports.EV_CHANGE = 'change';
exports.EV_ADD_DIR = 'addDir';
exports.EV_UNLINK = 'unlink';
exports.EV_UNLINK_DIR = 'unlinkDir';
exports.EV_RAW = 'raw';
exports.EV_ERROR = 'error';

exports.STR_DATA = 'data';
exports.STR_END = 'end';
exports.STR_CLOSE = 'close';

exports.FSEVENT_CREATED = 'created';
exports.FSEVENT_MODIFIED = 'modified';
exports.FSEVENT_DELETED = 'deleted';
exports.FSEVENT_MOVED = 'moved';
exports.FSEVENT_CLONED = 'cloned';
exports.FSEVENT_UNKNOWN = 'unknown';
exports.FSEVENT_TYPE_FILE = 'file';
exports.FSEVENT_TYPE_DIRECTORY = 'directory';
exports.FSEVENT_TYPE_SYMLINK = 'symlink';

exports.KEY_LISTENERS = 'listeners';
exports.KEY_ERR = 'errHandlers';
exports.KEY_RAW = 'rawEmitters';
exports.HANDLER_KEYS = [exports.KEY_LISTENERS, exports.KEY_ERR, exports.KEY_RAW];

exports.DOT_SLASH = `.${sep}`;

exports.BACK_SLASH_RE = /\\/g;
exports.DOUBLE_SLASH_RE = /\/\//;
exports.SLASH_OR_BACK_SLASH_RE = /[/\\]/;
exports.DOT_RE = /\..*\.(sw[px])$|~$|\.subl.*\.tmp/;
exports.REPLACER_RE = /^\.[/\\]/;

exports.SLASH = '/';
exports.SLASH_SLASH = '//';
exports.BRACE_START = '{';
exports.BANG = '!';
exports.ONE_DOT = '.';
exports.TWO_DOTS = '..';
exports.STAR = '*';
exports.GLOBSTAR = '**';
exports.ROOT_GLOBSTAR = '/**/*';
exports.SLASH_GLOBSTAR = '/**';
exports.DIR_SUFFIX = 'Dir';
exports.ANYMATCH_OPTS = {dot: true};
exports.STRING_TYPE = 'string';
exports.FUNCTION_TYPE = 'function';
exports.EMPTY_STR = '';
exports.EMPTY_FN = () => {};
exports.IDENTITY_FN = val => val;

exports.isWindows = platform === 'win32';
exports.isMacos = platform === 'darwin';
exports.isLinux = platform === 'linux';
exports.isIBMi = os.type() === 'OS400';
}(constants$1));

const fs$a = fs__default;
const sysPath$2 = path__default;
const { promisify: promisify$3 } = require$$0__default$2;
const isBinaryPath = isBinaryPath$1;
const {
  isWindows: isWindows$2,
  isLinux,
  EMPTY_FN: EMPTY_FN$2,
  EMPTY_STR: EMPTY_STR$1,
  KEY_LISTENERS,
  KEY_ERR,
  KEY_RAW,
  HANDLER_KEYS,
  EV_CHANGE: EV_CHANGE$2,
  EV_ADD: EV_ADD$2,
  EV_ADD_DIR: EV_ADD_DIR$2,
  EV_ERROR: EV_ERROR$2,
  STR_DATA: STR_DATA$1,
  STR_END: STR_END$2,
  BRACE_START: BRACE_START$1,
  STAR
} = constants$1;

const THROTTLE_MODE_WATCH = 'watch';

const open$1 = promisify$3(fs$a.open);
const stat$2 = promisify$3(fs$a.stat);
const lstat$1 = promisify$3(fs$a.lstat);
const close = promisify$3(fs$a.close);
const fsrealpath = promisify$3(fs$a.realpath);

const statMethods$1 = { lstat: lstat$1, stat: stat$2 };

// TODO: emit errors properly. Example: EMFILE on Macos.
const foreach = (val, fn) => {
  if (val instanceof Set) {
    val.forEach(fn);
  } else {
    fn(val);
  }
};

const addAndConvert = (main, prop, item) => {
  let container = main[prop];
  if (!(container instanceof Set)) {
    main[prop] = container = new Set([container]);
  }
  container.add(item);
};

const clearItem = cont => key => {
  const set = cont[key];
  if (set instanceof Set) {
    set.clear();
  } else {
    delete cont[key];
  }
};

const delFromSet = (main, prop, item) => {
  const container = main[prop];
  if (container instanceof Set) {
    container.delete(item);
  } else if (container === item) {
    delete main[prop];
  }
};

const isEmptySet = (val) => val instanceof Set ? val.size === 0 : !val;

/**
 * @typedef {String} Path
 */

// fs_watch helpers

// object to hold per-process fs_watch instances
// (may be shared across chokidar FSWatcher instances)

/**
 * @typedef {Object} FsWatchContainer
 * @property {Set} listeners
 * @property {Set} errHandlers
 * @property {Set} rawEmitters
 * @property {fs.FSWatcher=} watcher
 * @property {Boolean=} watcherUnusable
 */

/**
 * @type {Map<String,FsWatchContainer>}
 */
const FsWatchInstances = new Map();

/**
 * Instantiates the fs_watch interface
 * @param {String} path to be watched
 * @param {Object} options to be passed to fs_watch
 * @param {Function} listener main event handler
 * @param {Function} errHandler emits info about errors
 * @param {Function} emitRaw emits raw event data
 * @returns {fs.FSWatcher} new fsevents instance
 */
function createFsWatchInstance(path, options, listener, errHandler, emitRaw) {
  const handleEvent = (rawEvent, evPath) => {
    listener(path);
    emitRaw(rawEvent, evPath, {watchedPath: path});

    // emit based on events occurring for files from a directory's watcher in
    // case the file's watcher misses it (and rely on throttling to de-dupe)
    if (evPath && path !== evPath) {
      fsWatchBroadcast(
        sysPath$2.resolve(path, evPath), KEY_LISTENERS, sysPath$2.join(path, evPath)
      );
    }
  };
  try {
    return fs$a.watch(path, options, handleEvent);
  } catch (error) {
    errHandler(error);
  }
}

/**
 * Helper for passing fs_watch event data to a collection of listeners
 * @param {Path} fullPath absolute path bound to fs_watch instance
 * @param {String} type listener type
 * @param {*=} val1 arguments to be passed to listeners
 * @param {*=} val2
 * @param {*=} val3
 */
const fsWatchBroadcast = (fullPath, type, val1, val2, val3) => {
  const cont = FsWatchInstances.get(fullPath);
  if (!cont) return;
  foreach(cont[type], (listener) => {
    listener(val1, val2, val3);
  });
};

/**
 * Instantiates the fs_watch interface or binds listeners
 * to an existing one covering the same file system entry
 * @param {String} path
 * @param {String} fullPath absolute path
 * @param {Object} options to be passed to fs_watch
 * @param {Object} handlers container for event listener functions
 */
const setFsWatchListener = (path, fullPath, options, handlers) => {
  const {listener, errHandler, rawEmitter} = handlers;
  let cont = FsWatchInstances.get(fullPath);

  /** @type {fs.FSWatcher=} */
  let watcher;
  if (!options.persistent) {
    watcher = createFsWatchInstance(
      path, options, listener, errHandler, rawEmitter
    );
    return watcher.close.bind(watcher);
  }
  if (cont) {
    addAndConvert(cont, KEY_LISTENERS, listener);
    addAndConvert(cont, KEY_ERR, errHandler);
    addAndConvert(cont, KEY_RAW, rawEmitter);
  } else {
    watcher = createFsWatchInstance(
      path,
      options,
      fsWatchBroadcast.bind(null, fullPath, KEY_LISTENERS),
      errHandler, // no need to use broadcast here
      fsWatchBroadcast.bind(null, fullPath, KEY_RAW)
    );
    if (!watcher) return;
    watcher.on(EV_ERROR$2, async (error) => {
      const broadcastErr = fsWatchBroadcast.bind(null, fullPath, KEY_ERR);
      cont.watcherUnusable = true; // documented since Node 10.4.1
      // Workaround for https://github.com/joyent/node/issues/4337
      if (isWindows$2 && error.code === 'EPERM') {
        try {
          const fd = await open$1(path, 'r');
          await close(fd);
          broadcastErr(error);
        } catch (err) {}
      } else {
        broadcastErr(error);
      }
    });
    cont = {
      listeners: listener,
      errHandlers: errHandler,
      rawEmitters: rawEmitter,
      watcher
    };
    FsWatchInstances.set(fullPath, cont);
  }
  // const index = cont.listeners.indexOf(listener);

  // removes this instance's listeners and closes the underlying fs_watch
  // instance if there are no more listeners left
  return () => {
    delFromSet(cont, KEY_LISTENERS, listener);
    delFromSet(cont, KEY_ERR, errHandler);
    delFromSet(cont, KEY_RAW, rawEmitter);
    if (isEmptySet(cont.listeners)) {
      // Check to protect against issue gh-730.
      // if (cont.watcherUnusable) {
      cont.watcher.close();
      // }
      FsWatchInstances.delete(fullPath);
      HANDLER_KEYS.forEach(clearItem(cont));
      cont.watcher = undefined;
      Object.freeze(cont);
    }
  };
};

// fs_watchFile helpers

// object to hold per-process fs_watchFile instances
// (may be shared across chokidar FSWatcher instances)
const FsWatchFileInstances = new Map();

/**
 * Instantiates the fs_watchFile interface or binds listeners
 * to an existing one covering the same file system entry
 * @param {String} path to be watched
 * @param {String} fullPath absolute path
 * @param {Object} options options to be passed to fs_watchFile
 * @param {Object} handlers container for event listener functions
 * @returns {Function} closer
 */
const setFsWatchFileListener = (path, fullPath, options, handlers) => {
  const {listener, rawEmitter} = handlers;
  let cont = FsWatchFileInstances.get(fullPath);

  const copts = cont && cont.options;
  if (copts && (copts.persistent < options.persistent || copts.interval > options.interval)) {
    fs$a.unwatchFile(fullPath);
    cont = undefined;
  }

  /* eslint-enable no-unused-vars, prefer-destructuring */

  if (cont) {
    addAndConvert(cont, KEY_LISTENERS, listener);
    addAndConvert(cont, KEY_RAW, rawEmitter);
  } else {
    // TODO
    // listeners.add(listener);
    // rawEmitters.add(rawEmitter);
    cont = {
      listeners: listener,
      rawEmitters: rawEmitter,
      options,
      watcher: fs$a.watchFile(fullPath, options, (curr, prev) => {
        foreach(cont.rawEmitters, (rawEmitter) => {
          rawEmitter(EV_CHANGE$2, fullPath, {curr, prev});
        });
        const currmtime = curr.mtimeMs;
        if (curr.size !== prev.size || currmtime > prev.mtimeMs || currmtime === 0) {
          foreach(cont.listeners, (listener) => listener(path, curr));
        }
      })
    };
    FsWatchFileInstances.set(fullPath, cont);
  }
  // const index = cont.listeners.indexOf(listener);

  // Removes this instance's listeners and closes the underlying fs_watchFile
  // instance if there are no more listeners left.
  return () => {
    delFromSet(cont, KEY_LISTENERS, listener);
    delFromSet(cont, KEY_RAW, rawEmitter);
    if (isEmptySet(cont.listeners)) {
      FsWatchFileInstances.delete(fullPath);
      fs$a.unwatchFile(fullPath);
      cont.options = cont.watcher = undefined;
      Object.freeze(cont);
    }
  };
};

/**
 * @mixin
 */
class NodeFsHandler$1 {

/**
 * @param {import("../index").FSWatcher} fsW
 */
constructor(fsW) {
  this.fsw = fsW;
  this._boundHandleError = (error) => fsW._handleError(error);
}

/**
 * Watch file for changes with fs_watchFile or fs_watch.
 * @param {String} path to file or dir
 * @param {Function} listener on fs change
 * @returns {Function} closer for the watcher instance
 */
_watchWithNodeFs(path, listener) {
  const opts = this.fsw.options;
  const directory = sysPath$2.dirname(path);
  const basename = sysPath$2.basename(path);
  const parent = this.fsw._getWatchedDir(directory);
  parent.add(basename);
  const absolutePath = sysPath$2.resolve(path);
  const options = {persistent: opts.persistent};
  if (!listener) listener = EMPTY_FN$2;

  let closer;
  if (opts.usePolling) {
    options.interval = opts.enableBinaryInterval && isBinaryPath(basename) ?
      opts.binaryInterval : opts.interval;
    closer = setFsWatchFileListener(path, absolutePath, options, {
      listener,
      rawEmitter: this.fsw._emitRaw
    });
  } else {
    closer = setFsWatchListener(path, absolutePath, options, {
      listener,
      errHandler: this._boundHandleError,
      rawEmitter: this.fsw._emitRaw
    });
  }
  return closer;
}

/**
 * Watch a file and emit add event if warranted.
 * @param {Path} file Path
 * @param {fs.Stats} stats result of fs_stat
 * @param {Boolean} initialAdd was the file added at watch instantiation?
 * @returns {Function} closer for the watcher instance
 */
_handleFile(file, stats, initialAdd) {
  if (this.fsw.closed) {
    return;
  }
  const dirname = sysPath$2.dirname(file);
  const basename = sysPath$2.basename(file);
  const parent = this.fsw._getWatchedDir(dirname);
  // stats is always present
  let prevStats = stats;

  // if the file is already being watched, do nothing
  if (parent.has(basename)) return;

  const listener = async (path, newStats) => {
    if (!this.fsw._throttle(THROTTLE_MODE_WATCH, file, 5)) return;
    if (!newStats || newStats.mtimeMs === 0) {
      try {
        const newStats = await stat$2(file);
        if (this.fsw.closed) return;
        // Check that change event was not fired because of changed only accessTime.
        const at = newStats.atimeMs;
        const mt = newStats.mtimeMs;
        if (!at || at <= mt || mt !== prevStats.mtimeMs) {
          this.fsw._emit(EV_CHANGE$2, file, newStats);
        }
        if (isLinux && prevStats.ino !== newStats.ino) {
          this.fsw._closeFile(path);
          prevStats = newStats;
          this.fsw._addPathCloser(path, this._watchWithNodeFs(file, listener));
        } else {
          prevStats = newStats;
        }
      } catch (error) {
        // Fix issues where mtime is null but file is still present
        this.fsw._remove(dirname, basename);
      }
      // add is about to be emitted if file not already tracked in parent
    } else if (parent.has(basename)) {
      // Check that change event was not fired because of changed only accessTime.
      const at = newStats.atimeMs;
      const mt = newStats.mtimeMs;
      if (!at || at <= mt || mt !== prevStats.mtimeMs) {
        this.fsw._emit(EV_CHANGE$2, file, newStats);
      }
      prevStats = newStats;
    }
  };
  // kick off the watcher
  const closer = this._watchWithNodeFs(file, listener);

  // emit an add event if we're supposed to
  if (!(initialAdd && this.fsw.options.ignoreInitial) && this.fsw._isntIgnored(file)) {
    if (!this.fsw._throttle(EV_ADD$2, file, 0)) return;
    this.fsw._emit(EV_ADD$2, file, stats);
  }

  return closer;
}

/**
 * Handle symlinks encountered while reading a dir.
 * @param {Object} entry returned by readdirp
 * @param {String} directory path of dir being read
 * @param {String} path of this item
 * @param {String} item basename of this item
 * @returns {Promise<Boolean>} true if no more processing is needed for this entry.
 */
async _handleSymlink(entry, directory, path, item) {
  if (this.fsw.closed) {
    return;
  }
  const full = entry.fullPath;
  const dir = this.fsw._getWatchedDir(directory);

  if (!this.fsw.options.followSymlinks) {
    // watch symlink directly (don't follow) and detect changes
    this.fsw._incrReadyCount();
    const linkPath = await fsrealpath(path);
    if (this.fsw.closed) return;
    if (dir.has(item)) {
      if (this.fsw._symlinkPaths.get(full) !== linkPath) {
        this.fsw._symlinkPaths.set(full, linkPath);
        this.fsw._emit(EV_CHANGE$2, path, entry.stats);
      }
    } else {
      dir.add(item);
      this.fsw._symlinkPaths.set(full, linkPath);
      this.fsw._emit(EV_ADD$2, path, entry.stats);
    }
    this.fsw._emitReady();
    return true;
  }

  // don't follow the same symlink more than once
  if (this.fsw._symlinkPaths.has(full)) {
    return true;
  }

  this.fsw._symlinkPaths.set(full, true);
}

_handleRead(directory, initialAdd, wh, target, dir, depth, throttler) {
  // Normalize the directory name on Windows
  directory = sysPath$2.join(directory, EMPTY_STR$1);

  if (!wh.hasGlob) {
    throttler = this.fsw._throttle('readdir', directory, 1000);
    if (!throttler) return;
  }

  const previous = this.fsw._getWatchedDir(wh.path);
  const current = new Set();

  let stream = this.fsw._readdirp(directory, {
    fileFilter: entry => wh.filterPath(entry),
    directoryFilter: entry => wh.filterDir(entry),
    depth: 0
  }).on(STR_DATA$1, async (entry) => {
    if (this.fsw.closed) {
      stream = undefined;
      return;
    }
    const item = entry.path;
    let path = sysPath$2.join(directory, item);
    current.add(item);

    if (entry.stats.isSymbolicLink() && await this._handleSymlink(entry, directory, path, item)) {
      return;
    }

    if (this.fsw.closed) {
      stream = undefined;
      return;
    }
    // Files that present in current directory snapshot
    // but absent in previous are added to watch list and
    // emit `add` event.
    if (item === target || !target && !previous.has(item)) {
      this.fsw._incrReadyCount();

      // ensure relativeness of path is preserved in case of watcher reuse
      path = sysPath$2.join(dir, sysPath$2.relative(dir, path));

      this._addToNodeFs(path, initialAdd, wh, depth + 1);
    }
  }).on(EV_ERROR$2, this._boundHandleError);

  return new Promise(resolve =>
    stream.once(STR_END$2, () => {
      if (this.fsw.closed) {
        stream = undefined;
        return;
      }
      const wasThrottled = throttler ? throttler.clear() : false;

      resolve();

      // Files that absent in current directory snapshot
      // but present in previous emit `remove` event
      // and are removed from @watched[directory].
      previous.getChildren().filter((item) => {
        return item !== directory &&
          !current.has(item) &&
          // in case of intersecting globs;
          // a path may have been filtered out of this readdir, but
          // shouldn't be removed because it matches a different glob
          (!wh.hasGlob || wh.filterPath({
            fullPath: sysPath$2.resolve(directory, item)
          }));
      }).forEach((item) => {
        this.fsw._remove(directory, item);
      });

      stream = undefined;

      // one more time for any missed in case changes came in extremely quickly
      if (wasThrottled) this._handleRead(directory, false, wh, target, dir, depth, throttler);
    })
  );
}

/**
 * Read directory to add / remove files from `@watched` list and re-read it on change.
 * @param {String} dir fs path
 * @param {fs.Stats} stats
 * @param {Boolean} initialAdd
 * @param {Number} depth relative to user-supplied path
 * @param {String} target child path targeted for watch
 * @param {Object} wh Common watch helpers for this path
 * @param {String} realpath
 * @returns {Promise<Function>} closer for the watcher instance.
 */
async _handleDir(dir, stats, initialAdd, depth, target, wh, realpath) {
  const parentDir = this.fsw._getWatchedDir(sysPath$2.dirname(dir));
  const tracked = parentDir.has(sysPath$2.basename(dir));
  if (!(initialAdd && this.fsw.options.ignoreInitial) && !target && !tracked) {
    if (!wh.hasGlob || wh.globFilter(dir)) this.fsw._emit(EV_ADD_DIR$2, dir, stats);
  }

  // ensure dir is tracked (harmless if redundant)
  parentDir.add(sysPath$2.basename(dir));
  this.fsw._getWatchedDir(dir);
  let throttler;
  let closer;

  const oDepth = this.fsw.options.depth;
  if ((oDepth == null || depth <= oDepth) && !this.fsw._symlinkPaths.has(realpath)) {
    if (!target) {
      await this._handleRead(dir, initialAdd, wh, target, dir, depth, throttler);
      if (this.fsw.closed) return;
    }

    closer = this._watchWithNodeFs(dir, (dirPath, stats) => {
      // if current directory is removed, do nothing
      if (stats && stats.mtimeMs === 0) return;

      this._handleRead(dirPath, false, wh, target, dir, depth, throttler);
    });
  }
  return closer;
}

/**
 * Handle added file, directory, or glob pattern.
 * Delegates call to _handleFile / _handleDir after checks.
 * @param {String} path to file or ir
 * @param {Boolean} initialAdd was the file added at watch instantiation?
 * @param {Object} priorWh depth relative to user-supplied path
 * @param {Number} depth Child path actually targeted for watch
 * @param {String=} target Child path actually targeted for watch
 * @returns {Promise}
 */
async _addToNodeFs(path, initialAdd, priorWh, depth, target) {
  const ready = this.fsw._emitReady;
  if (this.fsw._isIgnored(path) || this.fsw.closed) {
    ready();
    return false;
  }

  const wh = this.fsw._getWatchHelpers(path, depth);
  if (!wh.hasGlob && priorWh) {
    wh.hasGlob = priorWh.hasGlob;
    wh.globFilter = priorWh.globFilter;
    wh.filterPath = entry => priorWh.filterPath(entry);
    wh.filterDir = entry => priorWh.filterDir(entry);
  }

  // evaluate what is at the path we're being asked to watch
  try {
    const stats = await statMethods$1[wh.statMethod](wh.watchPath);
    if (this.fsw.closed) return;
    if (this.fsw._isIgnored(wh.watchPath, stats)) {
      ready();
      return false;
    }

    const follow = this.fsw.options.followSymlinks && !path.includes(STAR) && !path.includes(BRACE_START$1);
    let closer;
    if (stats.isDirectory()) {
      const absPath = sysPath$2.resolve(path);
      const targetPath = follow ? await fsrealpath(path) : path;
      if (this.fsw.closed) return;
      closer = await this._handleDir(wh.watchPath, stats, initialAdd, depth, target, wh, targetPath);
      if (this.fsw.closed) return;
      // preserve this symlink's target path
      if (absPath !== targetPath && targetPath !== undefined) {
        this.fsw._symlinkPaths.set(absPath, targetPath);
      }
    } else if (stats.isSymbolicLink()) {
      const targetPath = follow ? await fsrealpath(path) : path;
      if (this.fsw.closed) return;
      const parent = sysPath$2.dirname(wh.watchPath);
      this.fsw._getWatchedDir(parent).add(wh.watchPath);
      this.fsw._emit(EV_ADD$2, wh.watchPath, stats);
      closer = await this._handleDir(parent, stats, initialAdd, depth, path, wh, targetPath);
      if (this.fsw.closed) return;

      // preserve this symlink's target path
      if (targetPath !== undefined) {
        this.fsw._symlinkPaths.set(sysPath$2.resolve(path), targetPath);
      }
    } else {
      closer = this._handleFile(wh.watchPath, stats, initialAdd);
    }
    ready();

    this.fsw._addPathCloser(path, closer);
    return false;

  } catch (error) {
    if (this.fsw._handleError(error)) {
      ready();
      return path;
    }
  }
}

}

var nodefsHandler = NodeFsHandler$1;

var fseventsHandler = {exports: {}};

const fs$9 = fs__default;
const sysPath$1 = path__default;
const { promisify: promisify$2 } = require$$0__default$2;

let fsevents;
try {
  fsevents = eval('require')('fsevents');
} catch (error) {
  if (process.env.CHOKIDAR_PRINT_FSEVENTS_REQUIRE_ERROR) console.error(error);
}

if (fsevents) {
  // TODO: real check
  const mtch = process.version.match(/v(\d+)\.(\d+)/);
  if (mtch && mtch[1] && mtch[2]) {
    const maj = Number.parseInt(mtch[1], 10);
    const min = Number.parseInt(mtch[2], 10);
    if (maj === 8 && min < 16) {
      fsevents = undefined;
    }
  }
}

const {
  EV_ADD: EV_ADD$1,
  EV_CHANGE: EV_CHANGE$1,
  EV_ADD_DIR: EV_ADD_DIR$1,
  EV_UNLINK: EV_UNLINK$1,
  EV_ERROR: EV_ERROR$1,
  STR_DATA,
  STR_END: STR_END$1,
  FSEVENT_CREATED,
  FSEVENT_MODIFIED,
  FSEVENT_DELETED,
  FSEVENT_MOVED,
  // FSEVENT_CLONED,
  FSEVENT_UNKNOWN,
  FSEVENT_TYPE_FILE,
  FSEVENT_TYPE_DIRECTORY,
  FSEVENT_TYPE_SYMLINK,

  ROOT_GLOBSTAR,
  DIR_SUFFIX,
  DOT_SLASH,
  FUNCTION_TYPE: FUNCTION_TYPE$1,
  EMPTY_FN: EMPTY_FN$1,
  IDENTITY_FN
} = constants$1;

const Depth = (value) => isNaN(value) ? {} : {depth: value};

const stat$1 = promisify$2(fs$9.stat);
const lstat = promisify$2(fs$9.lstat);
const realpath = promisify$2(fs$9.realpath);

const statMethods = { stat: stat$1, lstat };

/**
 * @typedef {String} Path
 */

/**
 * @typedef {Object} FsEventsWatchContainer
 * @property {Set<Function>} listeners
 * @property {Function} rawEmitter
 * @property {{stop: Function}} watcher
 */

// fsevents instance helper functions
/**
 * Object to hold per-process fsevents instances (may be shared across chokidar FSWatcher instances)
 * @type {Map<Path,FsEventsWatchContainer>}
 */
const FSEventsWatchers = new Map();

// Threshold of duplicate path prefixes at which to start
// consolidating going forward
const consolidateThreshhold = 10;

const wrongEventFlags = new Set([
  69888, 70400, 71424, 72704, 73472, 131328, 131840, 262912
]);

/**
 * Instantiates the fsevents interface
 * @param {Path} path path to be watched
 * @param {Function} callback called when fsevents is bound and ready
 * @returns {{stop: Function}} new fsevents instance
 */
const createFSEventsInstance = (path, callback) => {
  const stop = fsevents.watch(path, callback);
  return {stop};
};

/**
 * Instantiates the fsevents interface or binds listeners to an existing one covering
 * the same file tree.
 * @param {Path} path           - to be watched
 * @param {Path} realPath       - real path for symlinks
 * @param {Function} listener   - called when fsevents emits events
 * @param {Function} rawEmitter - passes data to listeners of the 'raw' event
 * @returns {Function} closer
 */
function setFSEventsListener(path, realPath, listener, rawEmitter) {
  let watchPath = sysPath$1.extname(realPath) ? sysPath$1.dirname(realPath) : realPath;

  const parentPath = sysPath$1.dirname(watchPath);
  let cont = FSEventsWatchers.get(watchPath);

  // If we've accumulated a substantial number of paths that
  // could have been consolidated by watching one directory
  // above the current one, create a watcher on the parent
  // path instead, so that we do consolidate going forward.
  if (couldConsolidate(parentPath)) {
    watchPath = parentPath;
  }

  const resolvedPath = sysPath$1.resolve(path);
  const hasSymlink = resolvedPath !== realPath;

  const filteredListener = (fullPath, flags, info) => {
    if (hasSymlink) fullPath = fullPath.replace(realPath, resolvedPath);
    if (
      fullPath === resolvedPath ||
      !fullPath.indexOf(resolvedPath + sysPath$1.sep)
    ) listener(fullPath, flags, info);
  };

  // check if there is already a watcher on a parent path
  // modifies `watchPath` to the parent path when it finds a match
  let watchedParent = false;
  for (const watchedPath of FSEventsWatchers.keys()) {
    if (realPath.indexOf(sysPath$1.resolve(watchedPath) + sysPath$1.sep) === 0) {
      watchPath = watchedPath;
      cont = FSEventsWatchers.get(watchPath);
      watchedParent = true;
      break;
    }
  }

  if (cont || watchedParent) {
    cont.listeners.add(filteredListener);
  } else {
    cont = {
      listeners: new Set([filteredListener]),
      rawEmitter,
      watcher: createFSEventsInstance(watchPath, (fullPath, flags) => {
        if (!cont.listeners.size) return;
        const info = fsevents.getInfo(fullPath, flags);
        cont.listeners.forEach(list => {
          list(fullPath, flags, info);
        });

        cont.rawEmitter(info.event, fullPath, info);
      })
    };
    FSEventsWatchers.set(watchPath, cont);
  }

  // removes this instance's listeners and closes the underlying fsevents
  // instance if there are no more listeners left
  return () => {
    const lst = cont.listeners;

    lst.delete(filteredListener);
    if (!lst.size) {
      FSEventsWatchers.delete(watchPath);
      if (cont.watcher) return cont.watcher.stop().then(() => {
        cont.rawEmitter = cont.watcher = undefined;
        Object.freeze(cont);
      });
    }
  };
}

// Decide whether or not we should start a new higher-level
// parent watcher
const couldConsolidate = (path) => {
  let count = 0;
  for (const watchPath of FSEventsWatchers.keys()) {
    if (watchPath.indexOf(path) === 0) {
      count++;
      if (count >= consolidateThreshhold) {
        return true;
      }
    }
  }

  return false;
};

// returns boolean indicating whether fsevents can be used
const canUse = () => fsevents && FSEventsWatchers.size < 128;

// determines subdirectory traversal levels from root to path
const calcDepth = (path, root) => {
  let i = 0;
  while (!path.indexOf(root) && (path = sysPath$1.dirname(path)) !== root) i++;
  return i;
};

// returns boolean indicating whether the fsevents' event info has the same type
// as the one returned by fs.stat
const sameTypes = (info, stats) => (
  info.type === FSEVENT_TYPE_DIRECTORY && stats.isDirectory() ||
  info.type === FSEVENT_TYPE_SYMLINK && stats.isSymbolicLink() ||
  info.type === FSEVENT_TYPE_FILE && stats.isFile()
);

/**
 * @mixin
 */
class FsEventsHandler$1 {

/**
 * @param {import('../index').FSWatcher} fsw
 */
constructor(fsw) {
  this.fsw = fsw;
}
checkIgnored(path, stats) {
  const ipaths = this.fsw._ignoredPaths;
  if (this.fsw._isIgnored(path, stats)) {
    ipaths.add(path);
    if (stats && stats.isDirectory()) {
      ipaths.add(path + ROOT_GLOBSTAR);
    }
    return true;
  }

  ipaths.delete(path);
  ipaths.delete(path + ROOT_GLOBSTAR);
}

addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts) {
  const event = watchedDir.has(item) ? EV_CHANGE$1 : EV_ADD$1;
  this.handleEvent(event, path, fullPath, realPath, parent, watchedDir, item, info, opts);
}

async checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts) {
  try {
    const stats = await stat$1(path);
    if (this.fsw.closed) return;
    if (sameTypes(info, stats)) {
      this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
    } else {
      this.handleEvent(EV_UNLINK$1, path, fullPath, realPath, parent, watchedDir, item, info, opts);
    }
  } catch (error) {
    if (error.code === 'EACCES') {
      this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
    } else {
      this.handleEvent(EV_UNLINK$1, path, fullPath, realPath, parent, watchedDir, item, info, opts);
    }
  }
}

handleEvent(event, path, fullPath, realPath, parent, watchedDir, item, info, opts) {
  if (this.fsw.closed || this.checkIgnored(path)) return;

  if (event === EV_UNLINK$1) {
    const isDirectory = info.type === FSEVENT_TYPE_DIRECTORY;
    // suppress unlink events on never before seen files
    if (isDirectory || watchedDir.has(item)) {
      this.fsw._remove(parent, item, isDirectory);
    }
  } else {
    if (event === EV_ADD$1) {
      // track new directories
      if (info.type === FSEVENT_TYPE_DIRECTORY) this.fsw._getWatchedDir(path);

      if (info.type === FSEVENT_TYPE_SYMLINK && opts.followSymlinks) {
        // push symlinks back to the top of the stack to get handled
        const curDepth = opts.depth === undefined ?
          undefined : calcDepth(fullPath, realPath) + 1;
        return this._addToFsEvents(path, false, true, curDepth);
      }

      // track new paths
      // (other than symlinks being followed, which will be tracked soon)
      this.fsw._getWatchedDir(parent).add(item);
    }
    /**
     * @type {'add'|'addDir'|'unlink'|'unlinkDir'}
     */
    const eventName = info.type === FSEVENT_TYPE_DIRECTORY ? event + DIR_SUFFIX : event;
    this.fsw._emit(eventName, path);
    if (eventName === EV_ADD_DIR$1) this._addToFsEvents(path, false, true);
  }
}

/**
 * Handle symlinks encountered during directory scan
 * @param {String} watchPath  - file/dir path to be watched with fsevents
 * @param {String} realPath   - real path (in case of symlinks)
 * @param {Function} transform  - path transformer
 * @param {Function} globFilter - path filter in case a glob pattern was provided
 * @returns {Function} closer for the watcher instance
*/
_watchWithFsEvents(watchPath, realPath, transform, globFilter) {
  if (this.fsw.closed || this.fsw._isIgnored(watchPath)) return;
  const opts = this.fsw.options;
  const watchCallback = async (fullPath, flags, info) => {
    if (this.fsw.closed) return;
    if (
      opts.depth !== undefined &&
      calcDepth(fullPath, realPath) > opts.depth
    ) return;
    const path = transform(sysPath$1.join(
      watchPath, sysPath$1.relative(watchPath, fullPath)
    ));
    if (globFilter && !globFilter(path)) return;
    // ensure directories are tracked
    const parent = sysPath$1.dirname(path);
    const item = sysPath$1.basename(path);
    const watchedDir = this.fsw._getWatchedDir(
      info.type === FSEVENT_TYPE_DIRECTORY ? path : parent
    );

    // correct for wrong events emitted
    if (wrongEventFlags.has(flags) || info.event === FSEVENT_UNKNOWN) {
      if (typeof opts.ignored === FUNCTION_TYPE$1) {
        let stats;
        try {
          stats = await stat$1(path);
        } catch (error) {}
        if (this.fsw.closed) return;
        if (this.checkIgnored(path, stats)) return;
        if (sameTypes(info, stats)) {
          this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
        } else {
          this.handleEvent(EV_UNLINK$1, path, fullPath, realPath, parent, watchedDir, item, info, opts);
        }
      } else {
        this.checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts);
      }
    } else {
      switch (info.event) {
      case FSEVENT_CREATED:
      case FSEVENT_MODIFIED:
        return this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
      case FSEVENT_DELETED:
      case FSEVENT_MOVED:
        return this.checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts);
      }
    }
  };

  const closer = setFSEventsListener(
    watchPath,
    realPath,
    watchCallback,
    this.fsw._emitRaw
  );

  this.fsw._emitReady();
  return closer;
}

/**
 * Handle symlinks encountered during directory scan
 * @param {String} linkPath path to symlink
 * @param {String} fullPath absolute path to the symlink
 * @param {Function} transform pre-existing path transformer
 * @param {Number} curDepth level of subdirectories traversed to where symlink is
 * @returns {Promise<void>}
 */
async _handleFsEventsSymlink(linkPath, fullPath, transform, curDepth) {
  // don't follow the same symlink more than once
  if (this.fsw.closed || this.fsw._symlinkPaths.has(fullPath)) return;

  this.fsw._symlinkPaths.set(fullPath, true);
  this.fsw._incrReadyCount();

  try {
    const linkTarget = await realpath(linkPath);
    if (this.fsw.closed) return;
    if (this.fsw._isIgnored(linkTarget)) {
      return this.fsw._emitReady();
    }

    this.fsw._incrReadyCount();

    // add the linkTarget for watching with a wrapper for transform
    // that causes emitted paths to incorporate the link's path
    this._addToFsEvents(linkTarget || linkPath, (path) => {
      let aliasedPath = linkPath;
      if (linkTarget && linkTarget !== DOT_SLASH) {
        aliasedPath = path.replace(linkTarget, linkPath);
      } else if (path !== DOT_SLASH) {
        aliasedPath = sysPath$1.join(linkPath, path);
      }
      return transform(aliasedPath);
    }, false, curDepth);
  } catch(error) {
    if (this.fsw._handleError(error)) {
      return this.fsw._emitReady();
    }
  }
}

/**
 *
 * @param {Path} newPath
 * @param {fs.Stats} stats
 */
emitAdd(newPath, stats, processPath, opts, forceAdd) {
  const pp = processPath(newPath);
  const isDir = stats.isDirectory();
  const dirObj = this.fsw._getWatchedDir(sysPath$1.dirname(pp));
  const base = sysPath$1.basename(pp);

  // ensure empty dirs get tracked
  if (isDir) this.fsw._getWatchedDir(pp);
  if (dirObj.has(base)) return;
  dirObj.add(base);

  if (!opts.ignoreInitial || forceAdd === true) {
    this.fsw._emit(isDir ? EV_ADD_DIR$1 : EV_ADD$1, pp, stats);
  }
}

initWatch(realPath, path, wh, processPath) {
  if (this.fsw.closed) return;
  const closer = this._watchWithFsEvents(
    wh.watchPath,
    sysPath$1.resolve(realPath || wh.watchPath),
    processPath,
    wh.globFilter
  );
  this.fsw._addPathCloser(path, closer);
}

/**
 * Handle added path with fsevents
 * @param {String} path file/dir path or glob pattern
 * @param {Function|Boolean=} transform converts working path to what the user expects
 * @param {Boolean=} forceAdd ensure add is emitted
 * @param {Number=} priorDepth Level of subdirectories already traversed.
 * @returns {Promise<void>}
 */
async _addToFsEvents(path, transform, forceAdd, priorDepth) {
  if (this.fsw.closed) {
    return;
  }
  const opts = this.fsw.options;
  const processPath = typeof transform === FUNCTION_TYPE$1 ? transform : IDENTITY_FN;

  const wh = this.fsw._getWatchHelpers(path);

  // evaluate what is at the path we're being asked to watch
  try {
    const stats = await statMethods[wh.statMethod](wh.watchPath);
    if (this.fsw.closed) return;
    if (this.fsw._isIgnored(wh.watchPath, stats)) {
      throw null;
    }
    if (stats.isDirectory()) {
      // emit addDir unless this is a glob parent
      if (!wh.globFilter) this.emitAdd(processPath(path), stats, processPath, opts, forceAdd);

      // don't recurse further if it would exceed depth setting
      if (priorDepth && priorDepth > opts.depth) return;

      // scan the contents of the dir
      this.fsw._readdirp(wh.watchPath, {
        fileFilter: entry => wh.filterPath(entry),
        directoryFilter: entry => wh.filterDir(entry),
        ...Depth(opts.depth - (priorDepth || 0))
      }).on(STR_DATA, (entry) => {
        // need to check filterPath on dirs b/c filterDir is less restrictive
        if (this.fsw.closed) {
          return;
        }
        if (entry.stats.isDirectory() && !wh.filterPath(entry)) return;

        const joinedPath = sysPath$1.join(wh.watchPath, entry.path);
        const {fullPath} = entry;

        if (wh.followSymlinks && entry.stats.isSymbolicLink()) {
          // preserve the current depth here since it can't be derived from
          // real paths past the symlink
          const curDepth = opts.depth === undefined ?
            undefined : calcDepth(joinedPath, sysPath$1.resolve(wh.watchPath)) + 1;

          this._handleFsEventsSymlink(joinedPath, fullPath, processPath, curDepth);
        } else {
          this.emitAdd(joinedPath, entry.stats, processPath, opts, forceAdd);
        }
      }).on(EV_ERROR$1, EMPTY_FN$1).on(STR_END$1, () => {
        this.fsw._emitReady();
      });
    } else {
      this.emitAdd(wh.watchPath, stats, processPath, opts, forceAdd);
      this.fsw._emitReady();
    }
  } catch (error) {
    if (!error || this.fsw._handleError(error)) {
      // TODO: Strange thing: "should not choke on an ignored watch path" will be failed without 2 ready calls -__-
      this.fsw._emitReady();
      this.fsw._emitReady();
    }
  }

  if (opts.persistent && forceAdd !== true) {
    if (typeof transform === FUNCTION_TYPE$1) {
      // realpath has already been resolved
      this.initWatch(undefined, path, wh, processPath);
    } else {
      let realPath;
      try {
        realPath = await realpath(wh.watchPath);
      } catch (e) {}
      this.initWatch(realPath, path, wh, processPath);
    }
  }
}

}

fseventsHandler.exports = FsEventsHandler$1;
fseventsHandler.exports.canUse = canUse;

const { EventEmitter: EventEmitter$2 } = require$$0__default$5;
const fs$8 = fs__default;
const sysPath = path__default;
const { promisify: promisify$1 } = require$$0__default$2;
const readdirp = readdirp_1;
const anymatch = anymatch$2.exports.default;
const globParent = globParent$2;
const isGlob = isGlob$2;
const braces = braces_1;
const normalizePath = normalizePath$2;

const NodeFsHandler = nodefsHandler;
const FsEventsHandler = fseventsHandler.exports;
const {
  EV_ALL,
  EV_READY,
  EV_ADD,
  EV_CHANGE,
  EV_UNLINK,
  EV_ADD_DIR,
  EV_UNLINK_DIR,
  EV_RAW,
  EV_ERROR,

  STR_CLOSE,
  STR_END,

  BACK_SLASH_RE,
  DOUBLE_SLASH_RE,
  SLASH_OR_BACK_SLASH_RE,
  DOT_RE,
  REPLACER_RE,

  SLASH,
  SLASH_SLASH,
  BRACE_START,
  BANG,
  ONE_DOT,
  TWO_DOTS,
  GLOBSTAR,
  SLASH_GLOBSTAR,
  ANYMATCH_OPTS,
  STRING_TYPE,
  FUNCTION_TYPE,
  EMPTY_STR,
  EMPTY_FN,

  isWindows: isWindows$1,
  isMacos,
  isIBMi
} = constants$1;

const stat = promisify$1(fs$8.stat);
const readdir = promisify$1(fs$8.readdir);

/**
 * @typedef {String} Path
 * @typedef {'all'|'add'|'addDir'|'change'|'unlink'|'unlinkDir'|'raw'|'error'|'ready'} EventName
 * @typedef {'readdir'|'watch'|'add'|'remove'|'change'} ThrottleType
 */

/**
 *
 * @typedef {Object} WatchHelpers
 * @property {Boolean} followSymlinks
 * @property {'stat'|'lstat'} statMethod
 * @property {Path} path
 * @property {Path} watchPath
 * @property {Function} entryPath
 * @property {Boolean} hasGlob
 * @property {Object} globFilter
 * @property {Function} filterPath
 * @property {Function} filterDir
 */

const arrify = (value = []) => Array.isArray(value) ? value : [value];
const flatten = (list, result = []) => {
  list.forEach(item => {
    if (Array.isArray(item)) {
      flatten(item, result);
    } else {
      result.push(item);
    }
  });
  return result;
};

const unifyPaths = (paths_) => {
  /**
   * @type {Array<String>}
   */
  const paths = flatten(arrify(paths_));
  if (!paths.every(p => typeof p === STRING_TYPE)) {
    throw new TypeError(`Non-string provided as watch path: ${paths}`);
  }
  return paths.map(normalizePathToUnix);
};

// If SLASH_SLASH occurs at the beginning of path, it is not replaced
//     because "//StoragePC/DrivePool/Movies" is a valid network path
const toUnix = (string) => {
  let str = string.replace(BACK_SLASH_RE, SLASH);
  let prepend = false;
  if (str.startsWith(SLASH_SLASH)) {
    prepend = true;
  }
  while (str.match(DOUBLE_SLASH_RE)) {
    str = str.replace(DOUBLE_SLASH_RE, SLASH);
  }
  if (prepend) {
    str = SLASH + str;
  }
  return str;
};

// Our version of upath.normalize
// TODO: this is not equal to path-normalize module - investigate why
const normalizePathToUnix = (path) => toUnix(sysPath.normalize(toUnix(path)));

const normalizeIgnored = (cwd = EMPTY_STR) => (path) => {
  if (typeof path !== STRING_TYPE) return path;
  return normalizePathToUnix(sysPath.isAbsolute(path) ? path : sysPath.join(cwd, path));
};

const getAbsolutePath = (path, cwd) => {
  if (sysPath.isAbsolute(path)) {
    return path;
  }
  if (path.startsWith(BANG)) {
    return BANG + sysPath.join(cwd, path.slice(1));
  }
  return sysPath.join(cwd, path);
};

const undef = (opts, key) => opts[key] === undefined;

/**
 * Directory entry.
 * @property {Path} path
 * @property {Set<Path>} items
 */
class DirEntry {
  /**
   * @param {Path} dir
   * @param {Function} removeWatcher
   */
  constructor(dir, removeWatcher) {
    this.path = dir;
    this._removeWatcher = removeWatcher;
    /** @type {Set<Path>} */
    this.items = new Set();
  }

  add(item) {
    const {items} = this;
    if (!items) return;
    if (item !== ONE_DOT && item !== TWO_DOTS) items.add(item);
  }

  async remove(item) {
    const {items} = this;
    if (!items) return;
    items.delete(item);
    if (items.size > 0) return;

    const dir = this.path;
    try {
      await readdir(dir);
    } catch (err) {
      if (this._removeWatcher) {
        this._removeWatcher(sysPath.dirname(dir), sysPath.basename(dir));
      }
    }
  }

  has(item) {
    const {items} = this;
    if (!items) return;
    return items.has(item);
  }

  /**
   * @returns {Array<String>}
   */
  getChildren() {
    const {items} = this;
    if (!items) return;
    return [...items.values()];
  }

  dispose() {
    this.items.clear();
    delete this.path;
    delete this._removeWatcher;
    delete this.items;
    Object.freeze(this);
  }
}

const STAT_METHOD_F = 'stat';
const STAT_METHOD_L = 'lstat';
class WatchHelper {
  constructor(path, watchPath, follow, fsw) {
    this.fsw = fsw;
    this.path = path = path.replace(REPLACER_RE, EMPTY_STR);
    this.watchPath = watchPath;
    this.fullWatchPath = sysPath.resolve(watchPath);
    this.hasGlob = watchPath !== path;
    /** @type {object|boolean} */
    if (path === EMPTY_STR) this.hasGlob = false;
    this.globSymlink = this.hasGlob && follow ? undefined : false;
    this.globFilter = this.hasGlob ? anymatch(path, undefined, ANYMATCH_OPTS) : false;
    this.dirParts = this.getDirParts(path);
    this.dirParts.forEach((parts) => {
      if (parts.length > 1) parts.pop();
    });
    this.followSymlinks = follow;
    this.statMethod = follow ? STAT_METHOD_F : STAT_METHOD_L;
  }

  checkGlobSymlink(entry) {
    // only need to resolve once
    // first entry should always have entry.parentDir === EMPTY_STR
    if (this.globSymlink === undefined) {
      this.globSymlink = entry.fullParentDir === this.fullWatchPath ?
        false : {realPath: entry.fullParentDir, linkPath: this.fullWatchPath};
    }

    if (this.globSymlink) {
      return entry.fullPath.replace(this.globSymlink.realPath, this.globSymlink.linkPath);
    }

    return entry.fullPath;
  }

  entryPath(entry) {
    return sysPath.join(this.watchPath,
      sysPath.relative(this.watchPath, this.checkGlobSymlink(entry))
    );
  }

  filterPath(entry) {
    const {stats} = entry;
    if (stats && stats.isSymbolicLink()) return this.filterDir(entry);
    const resolvedPath = this.entryPath(entry);
    const matchesGlob = this.hasGlob && typeof this.globFilter === FUNCTION_TYPE ?
      this.globFilter(resolvedPath) : true;
    return matchesGlob &&
      this.fsw._isntIgnored(resolvedPath, stats) &&
      this.fsw._hasReadPermissions(stats);
  }

  getDirParts(path) {
    if (!this.hasGlob) return [];
    const parts = [];
    const expandedPath = path.includes(BRACE_START) ? braces.expand(path) : [path];
    expandedPath.forEach((path) => {
      parts.push(sysPath.relative(this.watchPath, path).split(SLASH_OR_BACK_SLASH_RE));
    });
    return parts;
  }

  filterDir(entry) {
    if (this.hasGlob) {
      const entryParts = this.getDirParts(this.checkGlobSymlink(entry));
      let globstar = false;
      this.unmatchedGlob = !this.dirParts.some((parts) => {
        return parts.every((part, i) => {
          if (part === GLOBSTAR) globstar = true;
          return globstar || !entryParts[0][i] || anymatch(part, entryParts[0][i], ANYMATCH_OPTS);
        });
      });
    }
    return !this.unmatchedGlob && this.fsw._isntIgnored(this.entryPath(entry), entry.stats);
  }
}

/**
 * Watches files & directories for changes. Emitted events:
 * `add`, `addDir`, `change`, `unlink`, `unlinkDir`, `all`, `error`
 *
 *     new FSWatcher()
 *       .add(directories)
 *       .on('add', path => log('File', path, 'was added'))
 */
class FSWatcher extends EventEmitter$2 {
// Not indenting methods for history sake; for now.
constructor(_opts) {
  super();

  const opts = {};
  if (_opts) Object.assign(opts, _opts); // for frozen objects

  /** @type {Map<String, DirEntry>} */
  this._watched = new Map();
  /** @type {Map<String, Array>} */
  this._closers = new Map();
  /** @type {Set<String>} */
  this._ignoredPaths = new Set();

  /** @type {Map<ThrottleType, Map>} */
  this._throttled = new Map();

  /** @type {Map<Path, String|Boolean>} */
  this._symlinkPaths = new Map();

  this._streams = new Set();
  this.closed = false;

  // Set up default options.
  if (undef(opts, 'persistent')) opts.persistent = true;
  if (undef(opts, 'ignoreInitial')) opts.ignoreInitial = false;
  if (undef(opts, 'ignorePermissionErrors')) opts.ignorePermissionErrors = false;
  if (undef(opts, 'interval')) opts.interval = 100;
  if (undef(opts, 'binaryInterval')) opts.binaryInterval = 300;
  if (undef(opts, 'disableGlobbing')) opts.disableGlobbing = false;
  opts.enableBinaryInterval = opts.binaryInterval !== opts.interval;

  // Enable fsevents on OS X when polling isn't explicitly enabled.
  if (undef(opts, 'useFsEvents')) opts.useFsEvents = !opts.usePolling;

  // If we can't use fsevents, ensure the options reflect it's disabled.
  const canUseFsEvents = FsEventsHandler.canUse();
  if (!canUseFsEvents) opts.useFsEvents = false;

  // Use polling on Mac if not using fsevents.
  // Other platforms use non-polling fs_watch.
  if (undef(opts, 'usePolling') && !opts.useFsEvents) {
    opts.usePolling = isMacos;
  }

  // Always default to polling on IBM i because fs.watch() is not available on IBM i.
  if(isIBMi) {
    opts.usePolling = true;
  }

  // Global override (useful for end-developers that need to force polling for all
  // instances of chokidar, regardless of usage/dependency depth)
  const envPoll = process.env.CHOKIDAR_USEPOLLING;
  if (envPoll !== undefined) {
    const envLower = envPoll.toLowerCase();

    if (envLower === 'false' || envLower === '0') {
      opts.usePolling = false;
    } else if (envLower === 'true' || envLower === '1') {
      opts.usePolling = true;
    } else {
      opts.usePolling = !!envLower;
    }
  }
  const envInterval = process.env.CHOKIDAR_INTERVAL;
  if (envInterval) {
    opts.interval = Number.parseInt(envInterval, 10);
  }

  // Editor atomic write normalization enabled by default with fs.watch
  if (undef(opts, 'atomic')) opts.atomic = !opts.usePolling && !opts.useFsEvents;
  if (opts.atomic) this._pendingUnlinks = new Map();

  if (undef(opts, 'followSymlinks')) opts.followSymlinks = true;

  if (undef(opts, 'awaitWriteFinish')) opts.awaitWriteFinish = false;
  if (opts.awaitWriteFinish === true) opts.awaitWriteFinish = {};
  const awf = opts.awaitWriteFinish;
  if (awf) {
    if (!awf.stabilityThreshold) awf.stabilityThreshold = 2000;
    if (!awf.pollInterval) awf.pollInterval = 100;
    this._pendingWrites = new Map();
  }
  if (opts.ignored) opts.ignored = arrify(opts.ignored);

  let readyCalls = 0;
  this._emitReady = () => {
    readyCalls++;
    if (readyCalls >= this._readyCount) {
      this._emitReady = EMPTY_FN;
      this._readyEmitted = true;
      // use process.nextTick to allow time for listener to be bound
      process.nextTick(() => this.emit(EV_READY));
    }
  };
  this._emitRaw = (...args) => this.emit(EV_RAW, ...args);
  this._readyEmitted = false;
  this.options = opts;

  // Initialize with proper watcher.
  if (opts.useFsEvents) {
    this._fsEventsHandler = new FsEventsHandler(this);
  } else {
    this._nodeFsHandler = new NodeFsHandler(this);
  }

  // You’re frozen when your heart’s not open.
  Object.freeze(opts);
}

// Public methods

/**
 * Adds paths to be watched on an existing FSWatcher instance
 * @param {Path|Array<Path>} paths_
 * @param {String=} _origAdd private; for handling non-existent paths to be watched
 * @param {Boolean=} _internal private; indicates a non-user add
 * @returns {FSWatcher} for chaining
 */
add(paths_, _origAdd, _internal) {
  const {cwd, disableGlobbing} = this.options;
  this.closed = false;
  let paths = unifyPaths(paths_);
  if (cwd) {
    paths = paths.map((path) => {
      const absPath = getAbsolutePath(path, cwd);

      // Check `path` instead of `absPath` because the cwd portion can't be a glob
      if (disableGlobbing || !isGlob(path)) {
        return absPath;
      }
      return normalizePath(absPath);
    });
  }

  // set aside negated glob strings
  paths = paths.filter((path) => {
    if (path.startsWith(BANG)) {
      this._ignoredPaths.add(path.slice(1));
      return false;
    }

    // if a path is being added that was previously ignored, stop ignoring it
    this._ignoredPaths.delete(path);
    this._ignoredPaths.delete(path + SLASH_GLOBSTAR);

    // reset the cached userIgnored anymatch fn
    // to make ignoredPaths changes effective
    this._userIgnored = undefined;

    return true;
  });

  if (this.options.useFsEvents && this._fsEventsHandler) {
    if (!this._readyCount) this._readyCount = paths.length;
    if (this.options.persistent) this._readyCount *= 2;
    paths.forEach((path) => this._fsEventsHandler._addToFsEvents(path));
  } else {
    if (!this._readyCount) this._readyCount = 0;
    this._readyCount += paths.length;
    Promise.all(
      paths.map(async path => {
        const res = await this._nodeFsHandler._addToNodeFs(path, !_internal, 0, 0, _origAdd);
        if (res) this._emitReady();
        return res;
      })
    ).then(results => {
      if (this.closed) return;
      results.filter(item => item).forEach(item => {
        this.add(sysPath.dirname(item), sysPath.basename(_origAdd || item));
      });
    });
  }

  return this;
}

/**
 * Close watchers or start ignoring events from specified paths.
 * @param {Path|Array<Path>} paths_ - string or array of strings, file/directory paths and/or globs
 * @returns {FSWatcher} for chaining
*/
unwatch(paths_) {
  if (this.closed) return this;
  const paths = unifyPaths(paths_);
  const {cwd} = this.options;

  paths.forEach((path) => {
    // convert to absolute path unless relative path already matches
    if (!sysPath.isAbsolute(path) && !this._closers.has(path)) {
      if (cwd) path = sysPath.join(cwd, path);
      path = sysPath.resolve(path);
    }

    this._closePath(path);

    this._ignoredPaths.add(path);
    if (this._watched.has(path)) {
      this._ignoredPaths.add(path + SLASH_GLOBSTAR);
    }

    // reset the cached userIgnored anymatch fn
    // to make ignoredPaths changes effective
    this._userIgnored = undefined;
  });

  return this;
}

/**
 * Close watchers and remove all listeners from watched paths.
 * @returns {Promise<void>}.
*/
close() {
  if (this.closed) return this._closePromise;
  this.closed = true;

  // Memory management.
  this.removeAllListeners();
  const closers = [];
  this._closers.forEach(closerList => closerList.forEach(closer => {
    const promise = closer();
    if (promise instanceof Promise) closers.push(promise);
  }));
  this._streams.forEach(stream => stream.destroy());
  this._userIgnored = undefined;
  this._readyCount = 0;
  this._readyEmitted = false;
  this._watched.forEach(dirent => dirent.dispose());
  ['closers', 'watched', 'streams', 'symlinkPaths', 'throttled'].forEach(key => {
    this[`_${key}`].clear();
  });

  this._closePromise = closers.length ? Promise.all(closers).then(() => undefined) : Promise.resolve();
  return this._closePromise;
}

/**
 * Expose list of watched paths
 * @returns {Object} for chaining
*/
getWatched() {
  const watchList = {};
  this._watched.forEach((entry, dir) => {
    const key = this.options.cwd ? sysPath.relative(this.options.cwd, dir) : dir;
    watchList[key || ONE_DOT] = entry.getChildren().sort();
  });
  return watchList;
}

emitWithAll(event, args) {
  this.emit(...args);
  if (event !== EV_ERROR) this.emit(EV_ALL, ...args);
}

// Common helpers
// --------------

/**
 * Normalize and emit events.
 * Calling _emit DOES NOT MEAN emit() would be called!
 * @param {EventName} event Type of event
 * @param {Path} path File or directory path
 * @param {*=} val1 arguments to be passed with event
 * @param {*=} val2
 * @param {*=} val3
 * @returns the error if defined, otherwise the value of the FSWatcher instance's `closed` flag
 */
async _emit(event, path, val1, val2, val3) {
  if (this.closed) return;

  const opts = this.options;
  if (isWindows$1) path = sysPath.normalize(path);
  if (opts.cwd) path = sysPath.relative(opts.cwd, path);
  /** @type Array<any> */
  const args = [event, path];
  if (val3 !== undefined) args.push(val1, val2, val3);
  else if (val2 !== undefined) args.push(val1, val2);
  else if (val1 !== undefined) args.push(val1);

  const awf = opts.awaitWriteFinish;
  let pw;
  if (awf && (pw = this._pendingWrites.get(path))) {
    pw.lastChange = new Date();
    return this;
  }

  if (opts.atomic) {
    if (event === EV_UNLINK) {
      this._pendingUnlinks.set(path, args);
      setTimeout(() => {
        this._pendingUnlinks.forEach((entry, path) => {
          this.emit(...entry);
          this.emit(EV_ALL, ...entry);
          this._pendingUnlinks.delete(path);
        });
      }, typeof opts.atomic === 'number' ? opts.atomic : 100);
      return this;
    }
    if (event === EV_ADD && this._pendingUnlinks.has(path)) {
      event = args[0] = EV_CHANGE;
      this._pendingUnlinks.delete(path);
    }
  }

  if (awf && (event === EV_ADD || event === EV_CHANGE) && this._readyEmitted) {
    const awfEmit = (err, stats) => {
      if (err) {
        event = args[0] = EV_ERROR;
        args[1] = err;
        this.emitWithAll(event, args);
      } else if (stats) {
        // if stats doesn't exist the file must have been deleted
        if (args.length > 2) {
          args[2] = stats;
        } else {
          args.push(stats);
        }
        this.emitWithAll(event, args);
      }
    };

    this._awaitWriteFinish(path, awf.stabilityThreshold, event, awfEmit);
    return this;
  }

  if (event === EV_CHANGE) {
    const isThrottled = !this._throttle(EV_CHANGE, path, 50);
    if (isThrottled) return this;
  }

  if (opts.alwaysStat && val1 === undefined &&
    (event === EV_ADD || event === EV_ADD_DIR || event === EV_CHANGE)
  ) {
    const fullPath = opts.cwd ? sysPath.join(opts.cwd, path) : path;
    let stats;
    try {
      stats = await stat(fullPath);
    } catch (err) {}
    // Suppress event when fs_stat fails, to avoid sending undefined 'stat'
    if (!stats || this.closed) return;
    args.push(stats);
  }
  this.emitWithAll(event, args);

  return this;
}

/**
 * Common handler for errors
 * @param {Error} error
 * @returns {Error|Boolean} The error if defined, otherwise the value of the FSWatcher instance's `closed` flag
 */
_handleError(error) {
  const code = error && error.code;
  if (error && code !== 'ENOENT' && code !== 'ENOTDIR' &&
    (!this.options.ignorePermissionErrors || (code !== 'EPERM' && code !== 'EACCES'))
  ) {
    this.emit(EV_ERROR, error);
  }
  return error || this.closed;
}

/**
 * Helper utility for throttling
 * @param {ThrottleType} actionType type being throttled
 * @param {Path} path being acted upon
 * @param {Number} timeout duration of time to suppress duplicate actions
 * @returns {Object|false} tracking object or false if action should be suppressed
 */
_throttle(actionType, path, timeout) {
  if (!this._throttled.has(actionType)) {
    this._throttled.set(actionType, new Map());
  }

  /** @type {Map<Path, Object>} */
  const action = this._throttled.get(actionType);
  /** @type {Object} */
  const actionPath = action.get(path);

  if (actionPath) {
    actionPath.count++;
    return false;
  }

  let timeoutObject;
  const clear = () => {
    const item = action.get(path);
    const count = item ? item.count : 0;
    action.delete(path);
    clearTimeout(timeoutObject);
    if (item) clearTimeout(item.timeoutObject);
    return count;
  };
  timeoutObject = setTimeout(clear, timeout);
  const thr = {timeoutObject, clear, count: 0};
  action.set(path, thr);
  return thr;
}

_incrReadyCount() {
  return this._readyCount++;
}

/**
 * Awaits write operation to finish.
 * Polls a newly created file for size variations. When files size does not change for 'threshold' milliseconds calls callback.
 * @param {Path} path being acted upon
 * @param {Number} threshold Time in milliseconds a file size must be fixed before acknowledging write OP is finished
 * @param {EventName} event
 * @param {Function} awfEmit Callback to be called when ready for event to be emitted.
 */
_awaitWriteFinish(path, threshold, event, awfEmit) {
  let timeoutHandler;

  let fullPath = path;
  if (this.options.cwd && !sysPath.isAbsolute(path)) {
    fullPath = sysPath.join(this.options.cwd, path);
  }

  const now = new Date();

  const awaitWriteFinish = (prevStat) => {
    fs$8.stat(fullPath, (err, curStat) => {
      if (err || !this._pendingWrites.has(path)) {
        if (err && err.code !== 'ENOENT') awfEmit(err);
        return;
      }

      const now = Number(new Date());

      if (prevStat && curStat.size !== prevStat.size) {
        this._pendingWrites.get(path).lastChange = now;
      }
      const pw = this._pendingWrites.get(path);
      const df = now - pw.lastChange;

      if (df >= threshold) {
        this._pendingWrites.delete(path);
        awfEmit(undefined, curStat);
      } else {
        timeoutHandler = setTimeout(
          awaitWriteFinish,
          this.options.awaitWriteFinish.pollInterval,
          curStat
        );
      }
    });
  };

  if (!this._pendingWrites.has(path)) {
    this._pendingWrites.set(path, {
      lastChange: now,
      cancelWait: () => {
        this._pendingWrites.delete(path);
        clearTimeout(timeoutHandler);
        return event;
      }
    });
    timeoutHandler = setTimeout(
      awaitWriteFinish,
      this.options.awaitWriteFinish.pollInterval
    );
  }
}

_getGlobIgnored() {
  return [...this._ignoredPaths.values()];
}

/**
 * Determines whether user has asked to ignore this path.
 * @param {Path} path filepath or dir
 * @param {fs.Stats=} stats result of fs.stat
 * @returns {Boolean}
 */
_isIgnored(path, stats) {
  if (this.options.atomic && DOT_RE.test(path)) return true;
  if (!this._userIgnored) {
    const {cwd} = this.options;
    const ign = this.options.ignored;

    const ignored = ign && ign.map(normalizeIgnored(cwd));
    const paths = arrify(ignored)
      .filter((path) => typeof path === STRING_TYPE && !isGlob(path))
      .map((path) => path + SLASH_GLOBSTAR);
    const list = this._getGlobIgnored().map(normalizeIgnored(cwd)).concat(ignored, paths);
    this._userIgnored = anymatch(list, undefined, ANYMATCH_OPTS);
  }

  return this._userIgnored([path, stats]);
}

_isntIgnored(path, stat) {
  return !this._isIgnored(path, stat);
}

/**
 * Provides a set of common helpers and properties relating to symlink and glob handling.
 * @param {Path} path file, directory, or glob pattern being watched
 * @param {Number=} depth at any depth > 0, this isn't a glob
 * @returns {WatchHelper} object containing helpers for this path
 */
_getWatchHelpers(path, depth) {
  const watchPath = depth || this.options.disableGlobbing || !isGlob(path) ? path : globParent(path);
  const follow = this.options.followSymlinks;

  return new WatchHelper(path, watchPath, follow, this);
}

// Directory helpers
// -----------------

/**
 * Provides directory tracking objects
 * @param {String} directory path of the directory
 * @returns {DirEntry} the directory's tracking object
 */
_getWatchedDir(directory) {
  if (!this._boundRemove) this._boundRemove = this._remove.bind(this);
  const dir = sysPath.resolve(directory);
  if (!this._watched.has(dir)) this._watched.set(dir, new DirEntry(dir, this._boundRemove));
  return this._watched.get(dir);
}

// File helpers
// ------------

/**
 * Check for read permissions.
 * Based on this answer on SO: https://stackoverflow.com/a/11781404/1358405
 * @param {fs.Stats} stats - object, result of fs_stat
 * @returns {Boolean} indicates whether the file can be read
*/
_hasReadPermissions(stats) {
  if (this.options.ignorePermissionErrors) return true;

  // stats.mode may be bigint
  const md = stats && Number.parseInt(stats.mode, 10);
  const st = md & 0o777;
  const it = Number.parseInt(st.toString(8)[0], 10);
  return Boolean(4 & it);
}

/**
 * Handles emitting unlink events for
 * files and directories, and via recursion, for
 * files and directories within directories that are unlinked
 * @param {String} directory within which the following item is located
 * @param {String} item      base path of item/directory
 * @returns {void}
*/
_remove(directory, item, isDirectory) {
  // if what is being deleted is a directory, get that directory's paths
  // for recursive deleting and cleaning of watched object
  // if it is not a directory, nestedDirectoryChildren will be empty array
  const path = sysPath.join(directory, item);
  const fullPath = sysPath.resolve(path);
  isDirectory = isDirectory != null
    ? isDirectory
    : this._watched.has(path) || this._watched.has(fullPath);

  // prevent duplicate handling in case of arriving here nearly simultaneously
  // via multiple paths (such as _handleFile and _handleDir)
  if (!this._throttle('remove', path, 100)) return;

  // if the only watched file is removed, watch for its return
  if (!isDirectory && !this.options.useFsEvents && this._watched.size === 1) {
    this.add(directory, item, true);
  }

  // This will create a new entry in the watched object in either case
  // so we got to do the directory check beforehand
  const wp = this._getWatchedDir(path);
  const nestedDirectoryChildren = wp.getChildren();

  // Recursively remove children directories / files.
  nestedDirectoryChildren.forEach(nested => this._remove(path, nested));

  // Check if item was on the watched list and remove it
  const parent = this._getWatchedDir(directory);
  const wasTracked = parent.has(item);
  parent.remove(item);

  // Fixes issue #1042 -> Relative paths were detected and added as symlinks
  // (https://github.com/paulmillr/chokidar/blob/e1753ddbc9571bdc33b4a4af172d52cb6e611c10/lib/nodefs-handler.js#L612),
  // but never removed from the map in case the path was deleted.
  // This leads to an incorrect state if the path was recreated:
  // https://github.com/paulmillr/chokidar/blob/e1753ddbc9571bdc33b4a4af172d52cb6e611c10/lib/nodefs-handler.js#L553
  if (this._symlinkPaths.has(fullPath)) {
    this._symlinkPaths.delete(fullPath);
  }

  // If we wait for this file to be fully written, cancel the wait.
  let relPath = path;
  if (this.options.cwd) relPath = sysPath.relative(this.options.cwd, path);
  if (this.options.awaitWriteFinish && this._pendingWrites.has(relPath)) {
    const event = this._pendingWrites.get(relPath).cancelWait();
    if (event === EV_ADD) return;
  }

  // The Entry will either be a directory that just got removed
  // or a bogus entry to a file, in either case we have to remove it
  this._watched.delete(path);
  this._watched.delete(fullPath);
  const eventName = isDirectory ? EV_UNLINK_DIR : EV_UNLINK;
  if (wasTracked && !this._isIgnored(path)) this._emit(eventName, path);

  // Avoid conflicts if we later create another file with the same name
  if (!this.options.useFsEvents) {
    this._closePath(path);
  }
}

/**
 * Closes all watchers for a path
 * @param {Path} path
 */
_closePath(path) {
  this._closeFile(path);
  const dir = sysPath.dirname(path);
  this._getWatchedDir(dir).remove(sysPath.basename(path));
}

/**
 * Closes only file-specific watchers
 * @param {Path} path
 */
_closeFile(path) {
  const closers = this._closers.get(path);
  if (!closers) return;
  closers.forEach(closer => closer());
  this._closers.delete(path);
}

/**
 *
 * @param {Path} path
 * @param {Function} closer
 */
_addPathCloser(path, closer) {
  if (!closer) return;
  let list = this._closers.get(path);
  if (!list) {
    list = [];
    this._closers.set(path, list);
  }
  list.push(closer);
}

_readdirp(root, opts) {
  if (this.closed) return;
  const options = {type: EV_ALL, alwaysStat: true, lstat: true, ...opts};
  let stream = readdirp(root, options);
  this._streams.add(stream);
  stream.once(STR_CLOSE, () => {
    stream = undefined;
  });
  stream.once(STR_END, () => {
    if (stream) {
      this._streams.delete(stream);
      stream = undefined;
    }
  });
  return stream;
}

}

// Export FSWatcher class
chokidar.FSWatcher = FSWatcher;

/**
 * Instantiates watcher with paths to be tracked.
 * @param {String|Array<String>} paths file/directory paths and/or globs
 * @param {Object=} options chokidar opts
 * @returns an instance of FSWatcher for chaining.
 */
const watch = (paths, options) => {
  const watcher = new FSWatcher(options);
  watcher.add(paths);
  return watcher;
};

chokidar.watch = watch;

async function resolveHttpServer({ proxy }, app, httpsOptions) {
    if (!httpsOptions) {
        return require('http').createServer(app);
    }
    if (proxy) {
        // #484 fallback to http1 when proxy is needed.
        return require('https').createServer(httpsOptions, app);
    }
    else {
        return require('http2').createSecureServer({
            ...httpsOptions,
            allowHTTP1: true
        }, app);
    }
}
async function resolveHttpsConfig(config) {
    if (!config.server.https)
        return undefined;
    const httpsOption = isObject$3(config.server.https) ? config.server.https : {};
    const { ca, cert, key, pfx } = httpsOption;
    Object.assign(httpsOption, {
        ca: readFileIfExists(ca),
        cert: readFileIfExists(cert),
        key: readFileIfExists(key),
        pfx: readFileIfExists(pfx)
    });
    if (!httpsOption.key || !httpsOption.cert) {
        httpsOption.cert = httpsOption.key = await getCertificate(config);
    }
    return httpsOption;
}
function readFileIfExists(value) {
    if (typeof value === 'string') {
        try {
            return fs__default.readFileSync(path__default.resolve(value));
        }
        catch (e) {
            return value;
        }
    }
    return value;
}
/**
 * https://github.com/webpack/webpack-dev-server/blob/master/lib/utils/createCertificate.js
 *
 * Copyright JS Foundation and other contributors
 * This source code is licensed under the MIT license found in the
 * LICENSE file at
 * https://github.com/webpack/webpack-dev-server/blob/master/LICENSE
 */
async function createCertificate() {
    const { generate } = await Promise.resolve().then(function () { return require('./dep-7113cb3d.js'); }).then(function (n) { return n.index; });
    const pems = generate(null, {
        algorithm: 'sha256',
        days: 30,
        keySize: 2048,
        extensions: [
            // {
            //   name: 'basicConstraints',
            //   cA: true,
            // },
            {
                name: 'keyUsage',
                keyCertSign: true,
                digitalSignature: true,
                nonRepudiation: true,
                keyEncipherment: true,
                dataEncipherment: true
            },
            {
                name: 'extKeyUsage',
                serverAuth: true,
                clientAuth: true,
                codeSigning: true,
                timeStamping: true
            },
            {
                name: 'subjectAltName',
                altNames: [
                    {
                        // type 2 is DNS
                        type: 2,
                        value: 'localhost'
                    },
                    {
                        type: 2,
                        value: 'localhost.localdomain'
                    },
                    {
                        type: 2,
                        value: 'lvh.me'
                    },
                    {
                        type: 2,
                        value: '*.lvh.me'
                    },
                    {
                        type: 2,
                        value: '[::1]'
                    },
                    {
                        // type 7 is IP
                        type: 7,
                        ip: '127.0.0.1'
                    },
                    {
                        type: 7,
                        ip: 'fe80::1'
                    }
                ]
            }
        ]
    });
    return pems.private + pems.cert;
}
async function getCertificate(config) {
    if (!config.cacheDir)
        return await createCertificate();
    const cachePath = path__default.join(config.cacheDir, '_cert.pem');
    try {
        const [stat, content] = await Promise.all([
            fs$r.promises.stat(cachePath),
            fs$r.promises.readFile(cachePath, 'utf8')
        ]);
        if (Date.now() - stat.ctime.valueOf() > 30 * 24 * 60 * 60 * 1000) {
            throw new Error('cache is outdated.');
        }
        return content;
    }
    catch {
        const content = await createCertificate();
        fs$r.promises
            .mkdir(config.cacheDir, { recursive: true })
            .then(() => fs$r.promises.writeFile(cachePath, content))
            .catch(() => { });
        return content;
    }
}
async function httpServerStart(httpServer, serverOptions) {
    return new Promise((resolve, reject) => {
        let { port, strictPort, host, logger } = serverOptions;
        const onError = (e) => {
            if (e.code === 'EADDRINUSE') {
                if (strictPort) {
                    httpServer.removeListener('error', onError);
                    reject(new Error(`Port ${port} is already in use`));
                }
                else {
                    logger.info(`Port ${port} is in use, trying another one...`);
                    httpServer.listen(++port, host);
                }
            }
            else {
                httpServer.removeListener('error', onError);
                reject(e);
            }
        };
        httpServer.on('error', onError);
        httpServer.listen(port, host, () => {
            httpServer.removeListener('error', onError);
            resolve(port);
        });
    });
}

var bufferUtil$1 = {exports: {}};

var constants = {
  BINARY_TYPES: ['nodebuffer', 'arraybuffer', 'fragments'],
  GUID: '258EAFA5-E914-47DA-95CA-C5AB0DC85B11',
  kStatusCode: Symbol('status-code'),
  kWebSocket: Symbol('websocket'),
  EMPTY_BUFFER: Buffer.alloc(0),
  NOOP: () => {}
};

const { EMPTY_BUFFER: EMPTY_BUFFER$3 } = constants;

/**
 * Merges an array of buffers into a new buffer.
 *
 * @param {Buffer[]} list The array of buffers to concat
 * @param {Number} totalLength The total length of buffers in the list
 * @return {Buffer} The resulting buffer
 * @public
 */
function concat$1(list, totalLength) {
  if (list.length === 0) return EMPTY_BUFFER$3;
  if (list.length === 1) return list[0];

  const target = Buffer.allocUnsafe(totalLength);
  let offset = 0;

  for (let i = 0; i < list.length; i++) {
    const buf = list[i];
    target.set(buf, offset);
    offset += buf.length;
  }

  if (offset < totalLength) return target.slice(0, offset);

  return target;
}

/**
 * Masks a buffer using the given mask.
 *
 * @param {Buffer} source The buffer to mask
 * @param {Buffer} mask The mask to use
 * @param {Buffer} output The buffer where to store the result
 * @param {Number} offset The offset at which to start writing
 * @param {Number} length The number of bytes to mask.
 * @public
 */
function _mask(source, mask, output, offset, length) {
  for (let i = 0; i < length; i++) {
    output[offset + i] = source[i] ^ mask[i & 3];
  }
}

/**
 * Unmasks a buffer using the given mask.
 *
 * @param {Buffer} buffer The buffer to unmask
 * @param {Buffer} mask The mask to use
 * @public
 */
function _unmask(buffer, mask) {
  // Required until https://github.com/nodejs/node/issues/9006 is resolved.
  const length = buffer.length;
  for (let i = 0; i < length; i++) {
    buffer[i] ^= mask[i & 3];
  }
}

/**
 * Converts a buffer to an `ArrayBuffer`.
 *
 * @param {Buffer} buf The buffer to convert
 * @return {ArrayBuffer} Converted buffer
 * @public
 */
function toArrayBuffer$1(buf) {
  if (buf.byteLength === buf.buffer.byteLength) {
    return buf.buffer;
  }

  return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
}

/**
 * Converts `data` to a `Buffer`.
 *
 * @param {*} data The data to convert
 * @return {Buffer} The buffer
 * @throws {TypeError}
 * @public
 */
function toBuffer$3(data) {
  toBuffer$3.readOnly = true;

  if (Buffer.isBuffer(data)) return data;

  let buf;

  if (data instanceof ArrayBuffer) {
    buf = Buffer.from(data);
  } else if (ArrayBuffer.isView(data)) {
    buf = Buffer.from(data.buffer, data.byteOffset, data.byteLength);
  } else {
    buf = Buffer.from(data);
    toBuffer$3.readOnly = false;
  }

  return buf;
}

try {
  const bufferUtil = require('bufferutil');
  const bu = bufferUtil.BufferUtil || bufferUtil;

  bufferUtil$1.exports = {
    concat: concat$1,
    mask(source, mask, output, offset, length) {
      if (length < 48) _mask(source, mask, output, offset, length);
      else bu.mask(source, mask, output, offset, length);
    },
    toArrayBuffer: toArrayBuffer$1,
    toBuffer: toBuffer$3,
    unmask(buffer, mask) {
      if (buffer.length < 32) _unmask(buffer, mask);
      else bu.unmask(buffer, mask);
    }
  };
} catch (e) /* istanbul ignore next */ {
  bufferUtil$1.exports = {
    concat: concat$1,
    mask: _mask,
    toArrayBuffer: toArrayBuffer$1,
    toBuffer: toBuffer$3,
    unmask: _unmask
  };
}

const kDone = Symbol('kDone');
const kRun = Symbol('kRun');

/**
 * A very simple job queue with adjustable concurrency. Adapted from
 * https://github.com/STRML/async-limiter
 */
class Limiter$1 {
  /**
   * Creates a new `Limiter`.
   *
   * @param {Number} [concurrency=Infinity] The maximum number of jobs allowed
   *     to run concurrently
   */
  constructor(concurrency) {
    this[kDone] = () => {
      this.pending--;
      this[kRun]();
    };
    this.concurrency = concurrency || Infinity;
    this.jobs = [];
    this.pending = 0;
  }

  /**
   * Adds a job to the queue.
   *
   * @param {Function} job The job to run
   * @public
   */
  add(job) {
    this.jobs.push(job);
    this[kRun]();
  }

  /**
   * Removes a job from the queue and runs it if possible.
   *
   * @private
   */
  [kRun]() {
    if (this.pending === this.concurrency) return;

    if (this.jobs.length) {
      const job = this.jobs.shift();

      this.pending++;
      job(this[kDone]);
    }
  }
}

var limiter = Limiter$1;

const zlib$1 = require$$0__default$7;

const bufferUtil = bufferUtil$1.exports;
const Limiter = limiter;
const { kStatusCode: kStatusCode$2, NOOP: NOOP$1 } = constants;

const TRAILER = Buffer.from([0x00, 0x00, 0xff, 0xff]);
const kPerMessageDeflate = Symbol('permessage-deflate');
const kTotalLength = Symbol('total-length');
const kCallback = Symbol('callback');
const kBuffers = Symbol('buffers');
const kError = Symbol('error');

//
// We limit zlib concurrency, which prevents severe memory fragmentation
// as documented in https://github.com/nodejs/node/issues/8871#issuecomment-250915913
// and https://github.com/websockets/ws/issues/1202
//
// Intentionally global; it's the global thread pool that's an issue.
//
let zlibLimiter;

/**
 * permessage-deflate implementation.
 */
class PerMessageDeflate$4 {
  /**
   * Creates a PerMessageDeflate instance.
   *
   * @param {Object} [options] Configuration options
   * @param {Boolean} [options.serverNoContextTakeover=false] Request/accept
   *     disabling of server context takeover
   * @param {Boolean} [options.clientNoContextTakeover=false] Advertise/
   *     acknowledge disabling of client context takeover
   * @param {(Boolean|Number)} [options.serverMaxWindowBits] Request/confirm the
   *     use of a custom server window size
   * @param {(Boolean|Number)} [options.clientMaxWindowBits] Advertise support
   *     for, or request, a custom client window size
   * @param {Object} [options.zlibDeflateOptions] Options to pass to zlib on
   *     deflate
   * @param {Object} [options.zlibInflateOptions] Options to pass to zlib on
   *     inflate
   * @param {Number} [options.threshold=1024] Size (in bytes) below which
   *     messages should not be compressed
   * @param {Number} [options.concurrencyLimit=10] The number of concurrent
   *     calls to zlib
   * @param {Boolean} [isServer=false] Create the instance in either server or
   *     client mode
   * @param {Number} [maxPayload=0] The maximum allowed message length
   */
  constructor(options, isServer, maxPayload) {
    this._maxPayload = maxPayload | 0;
    this._options = options || {};
    this._threshold =
      this._options.threshold !== undefined ? this._options.threshold : 1024;
    this._isServer = !!isServer;
    this._deflate = null;
    this._inflate = null;

    this.params = null;

    if (!zlibLimiter) {
      const concurrency =
        this._options.concurrencyLimit !== undefined
          ? this._options.concurrencyLimit
          : 10;
      zlibLimiter = new Limiter(concurrency);
    }
  }

  /**
   * @type {String}
   */
  static get extensionName() {
    return 'permessage-deflate';
  }

  /**
   * Create an extension negotiation offer.
   *
   * @return {Object} Extension parameters
   * @public
   */
  offer() {
    const params = {};

    if (this._options.serverNoContextTakeover) {
      params.server_no_context_takeover = true;
    }
    if (this._options.clientNoContextTakeover) {
      params.client_no_context_takeover = true;
    }
    if (this._options.serverMaxWindowBits) {
      params.server_max_window_bits = this._options.serverMaxWindowBits;
    }
    if (this._options.clientMaxWindowBits) {
      params.client_max_window_bits = this._options.clientMaxWindowBits;
    } else if (this._options.clientMaxWindowBits == null) {
      params.client_max_window_bits = true;
    }

    return params;
  }

  /**
   * Accept an extension negotiation offer/response.
   *
   * @param {Array} configurations The extension negotiation offers/reponse
   * @return {Object} Accepted configuration
   * @public
   */
  accept(configurations) {
    configurations = this.normalizeParams(configurations);

    this.params = this._isServer
      ? this.acceptAsServer(configurations)
      : this.acceptAsClient(configurations);

    return this.params;
  }

  /**
   * Releases all resources used by the extension.
   *
   * @public
   */
  cleanup() {
    if (this._inflate) {
      this._inflate.close();
      this._inflate = null;
    }

    if (this._deflate) {
      const callback = this._deflate[kCallback];

      this._deflate.close();
      this._deflate = null;

      if (callback) {
        callback(
          new Error(
            'The deflate stream was closed while data was being processed'
          )
        );
      }
    }
  }

  /**
   *  Accept an extension negotiation offer.
   *
   * @param {Array} offers The extension negotiation offers
   * @return {Object} Accepted configuration
   * @private
   */
  acceptAsServer(offers) {
    const opts = this._options;
    const accepted = offers.find((params) => {
      if (
        (opts.serverNoContextTakeover === false &&
          params.server_no_context_takeover) ||
        (params.server_max_window_bits &&
          (opts.serverMaxWindowBits === false ||
            (typeof opts.serverMaxWindowBits === 'number' &&
              opts.serverMaxWindowBits > params.server_max_window_bits))) ||
        (typeof opts.clientMaxWindowBits === 'number' &&
          !params.client_max_window_bits)
      ) {
        return false;
      }

      return true;
    });

    if (!accepted) {
      throw new Error('None of the extension offers can be accepted');
    }

    if (opts.serverNoContextTakeover) {
      accepted.server_no_context_takeover = true;
    }
    if (opts.clientNoContextTakeover) {
      accepted.client_no_context_takeover = true;
    }
    if (typeof opts.serverMaxWindowBits === 'number') {
      accepted.server_max_window_bits = opts.serverMaxWindowBits;
    }
    if (typeof opts.clientMaxWindowBits === 'number') {
      accepted.client_max_window_bits = opts.clientMaxWindowBits;
    } else if (
      accepted.client_max_window_bits === true ||
      opts.clientMaxWindowBits === false
    ) {
      delete accepted.client_max_window_bits;
    }

    return accepted;
  }

  /**
   * Accept the extension negotiation response.
   *
   * @param {Array} response The extension negotiation response
   * @return {Object} Accepted configuration
   * @private
   */
  acceptAsClient(response) {
    const params = response[0];

    if (
      this._options.clientNoContextTakeover === false &&
      params.client_no_context_takeover
    ) {
      throw new Error('Unexpected parameter "client_no_context_takeover"');
    }

    if (!params.client_max_window_bits) {
      if (typeof this._options.clientMaxWindowBits === 'number') {
        params.client_max_window_bits = this._options.clientMaxWindowBits;
      }
    } else if (
      this._options.clientMaxWindowBits === false ||
      (typeof this._options.clientMaxWindowBits === 'number' &&
        params.client_max_window_bits > this._options.clientMaxWindowBits)
    ) {
      throw new Error(
        'Unexpected or invalid parameter "client_max_window_bits"'
      );
    }

    return params;
  }

  /**
   * Normalize parameters.
   *
   * @param {Array} configurations The extension negotiation offers/reponse
   * @return {Array} The offers/response with normalized parameters
   * @private
   */
  normalizeParams(configurations) {
    configurations.forEach((params) => {
      Object.keys(params).forEach((key) => {
        let value = params[key];

        if (value.length > 1) {
          throw new Error(`Parameter "${key}" must have only a single value`);
        }

        value = value[0];

        if (key === 'client_max_window_bits') {
          if (value !== true) {
            const num = +value;
            if (!Number.isInteger(num) || num < 8 || num > 15) {
              throw new TypeError(
                `Invalid value for parameter "${key}": ${value}`
              );
            }
            value = num;
          } else if (!this._isServer) {
            throw new TypeError(
              `Invalid value for parameter "${key}": ${value}`
            );
          }
        } else if (key === 'server_max_window_bits') {
          const num = +value;
          if (!Number.isInteger(num) || num < 8 || num > 15) {
            throw new TypeError(
              `Invalid value for parameter "${key}": ${value}`
            );
          }
          value = num;
        } else if (
          key === 'client_no_context_takeover' ||
          key === 'server_no_context_takeover'
        ) {
          if (value !== true) {
            throw new TypeError(
              `Invalid value for parameter "${key}": ${value}`
            );
          }
        } else {
          throw new Error(`Unknown parameter "${key}"`);
        }

        params[key] = value;
      });
    });

    return configurations;
  }

  /**
   * Decompress data. Concurrency limited.
   *
   * @param {Buffer} data Compressed data
   * @param {Boolean} fin Specifies whether or not this is the last fragment
   * @param {Function} callback Callback
   * @public
   */
  decompress(data, fin, callback) {
    zlibLimiter.add((done) => {
      this._decompress(data, fin, (err, result) => {
        done();
        callback(err, result);
      });
    });
  }

  /**
   * Compress data. Concurrency limited.
   *
   * @param {Buffer} data Data to compress
   * @param {Boolean} fin Specifies whether or not this is the last fragment
   * @param {Function} callback Callback
   * @public
   */
  compress(data, fin, callback) {
    zlibLimiter.add((done) => {
      this._compress(data, fin, (err, result) => {
        done();
        callback(err, result);
      });
    });
  }

  /**
   * Decompress data.
   *
   * @param {Buffer} data Compressed data
   * @param {Boolean} fin Specifies whether or not this is the last fragment
   * @param {Function} callback Callback
   * @private
   */
  _decompress(data, fin, callback) {
    const endpoint = this._isServer ? 'client' : 'server';

    if (!this._inflate) {
      const key = `${endpoint}_max_window_bits`;
      const windowBits =
        typeof this.params[key] !== 'number'
          ? zlib$1.Z_DEFAULT_WINDOWBITS
          : this.params[key];

      this._inflate = zlib$1.createInflateRaw({
        ...this._options.zlibInflateOptions,
        windowBits
      });
      this._inflate[kPerMessageDeflate] = this;
      this._inflate[kTotalLength] = 0;
      this._inflate[kBuffers] = [];
      this._inflate.on('error', inflateOnError);
      this._inflate.on('data', inflateOnData);
    }

    this._inflate[kCallback] = callback;

    this._inflate.write(data);
    if (fin) this._inflate.write(TRAILER);

    this._inflate.flush(() => {
      const err = this._inflate[kError];

      if (err) {
        this._inflate.close();
        this._inflate = null;
        callback(err);
        return;
      }

      const data = bufferUtil.concat(
        this._inflate[kBuffers],
        this._inflate[kTotalLength]
      );

      if (this._inflate._readableState.endEmitted) {
        this._inflate.close();
        this._inflate = null;
      } else {
        this._inflate[kTotalLength] = 0;
        this._inflate[kBuffers] = [];

        if (fin && this.params[`${endpoint}_no_context_takeover`]) {
          this._inflate.reset();
        }
      }

      callback(null, data);
    });
  }

  /**
   * Compress data.
   *
   * @param {Buffer} data Data to compress
   * @param {Boolean} fin Specifies whether or not this is the last fragment
   * @param {Function} callback Callback
   * @private
   */
  _compress(data, fin, callback) {
    const endpoint = this._isServer ? 'server' : 'client';

    if (!this._deflate) {
      const key = `${endpoint}_max_window_bits`;
      const windowBits =
        typeof this.params[key] !== 'number'
          ? zlib$1.Z_DEFAULT_WINDOWBITS
          : this.params[key];

      this._deflate = zlib$1.createDeflateRaw({
        ...this._options.zlibDeflateOptions,
        windowBits
      });

      this._deflate[kTotalLength] = 0;
      this._deflate[kBuffers] = [];

      //
      // An `'error'` event is emitted, only on Node.js < 10.0.0, if the
      // `zlib.DeflateRaw` instance is closed while data is being processed.
      // This can happen if `PerMessageDeflate#cleanup()` is called at the wrong
      // time due to an abnormal WebSocket closure.
      //
      this._deflate.on('error', NOOP$1);
      this._deflate.on('data', deflateOnData);
    }

    this._deflate[kCallback] = callback;

    this._deflate.write(data);
    this._deflate.flush(zlib$1.Z_SYNC_FLUSH, () => {
      if (!this._deflate) {
        //
        // The deflate stream was closed while data was being processed.
        //
        return;
      }

      let data = bufferUtil.concat(
        this._deflate[kBuffers],
        this._deflate[kTotalLength]
      );

      if (fin) data = data.slice(0, data.length - 4);

      //
      // Ensure that the callback will not be called again in
      // `PerMessageDeflate#cleanup()`.
      //
      this._deflate[kCallback] = null;

      this._deflate[kTotalLength] = 0;
      this._deflate[kBuffers] = [];

      if (fin && this.params[`${endpoint}_no_context_takeover`]) {
        this._deflate.reset();
      }

      callback(null, data);
    });
  }
}

var permessageDeflate = PerMessageDeflate$4;

/**
 * The listener of the `zlib.DeflateRaw` stream `'data'` event.
 *
 * @param {Buffer} chunk A chunk of data
 * @private
 */
function deflateOnData(chunk) {
  this[kBuffers].push(chunk);
  this[kTotalLength] += chunk.length;
}

/**
 * The listener of the `zlib.InflateRaw` stream `'data'` event.
 *
 * @param {Buffer} chunk A chunk of data
 * @private
 */
function inflateOnData(chunk) {
  this[kTotalLength] += chunk.length;

  if (
    this[kPerMessageDeflate]._maxPayload < 1 ||
    this[kTotalLength] <= this[kPerMessageDeflate]._maxPayload
  ) {
    this[kBuffers].push(chunk);
    return;
  }

  this[kError] = new RangeError('Max payload size exceeded');
  this[kError].code = 'WS_ERR_UNSUPPORTED_MESSAGE_LENGTH';
  this[kError][kStatusCode$2] = 1009;
  this.removeListener('data', inflateOnData);
  this.reset();
}

/**
 * The listener of the `zlib.InflateRaw` stream `'error'` event.
 *
 * @param {Error} err The emitted error
 * @private
 */
function inflateOnError(err) {
  //
  // There is no need to call `Zlib#close()` as the handle is automatically
  // closed when an error is emitted.
  //
  this[kPerMessageDeflate]._inflate = null;
  err[kStatusCode$2] = 1007;
  this[kCallback](err);
}

var validation = {exports: {}};

/**
 * Checks if a status code is allowed in a close frame.
 *
 * @param {Number} code The status code
 * @return {Boolean} `true` if the status code is valid, else `false`
 * @public
 */
function isValidStatusCode$2(code) {
  return (
    (code >= 1000 &&
      code <= 1014 &&
      code !== 1004 &&
      code !== 1005 &&
      code !== 1006) ||
    (code >= 3000 && code <= 4999)
  );
}

/**
 * Checks if a given buffer contains only correct UTF-8.
 * Ported from https://www.cl.cam.ac.uk/%7Emgk25/ucs/utf8_check.c by
 * Markus Kuhn.
 *
 * @param {Buffer} buf The buffer to check
 * @return {Boolean} `true` if `buf` contains only correct UTF-8, else `false`
 * @public
 */
function _isValidUTF8(buf) {
  const len = buf.length;
  let i = 0;

  while (i < len) {
    if ((buf[i] & 0x80) === 0) {
      // 0xxxxxxx
      i++;
    } else if ((buf[i] & 0xe0) === 0xc0) {
      // 110xxxxx 10xxxxxx
      if (
        i + 1 === len ||
        (buf[i + 1] & 0xc0) !== 0x80 ||
        (buf[i] & 0xfe) === 0xc0 // Overlong
      ) {
        return false;
      }

      i += 2;
    } else if ((buf[i] & 0xf0) === 0xe0) {
      // 1110xxxx 10xxxxxx 10xxxxxx
      if (
        i + 2 >= len ||
        (buf[i + 1] & 0xc0) !== 0x80 ||
        (buf[i + 2] & 0xc0) !== 0x80 ||
        (buf[i] === 0xe0 && (buf[i + 1] & 0xe0) === 0x80) || // Overlong
        (buf[i] === 0xed && (buf[i + 1] & 0xe0) === 0xa0) // Surrogate (U+D800 - U+DFFF)
      ) {
        return false;
      }

      i += 3;
    } else if ((buf[i] & 0xf8) === 0xf0) {
      // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
      if (
        i + 3 >= len ||
        (buf[i + 1] & 0xc0) !== 0x80 ||
        (buf[i + 2] & 0xc0) !== 0x80 ||
        (buf[i + 3] & 0xc0) !== 0x80 ||
        (buf[i] === 0xf0 && (buf[i + 1] & 0xf0) === 0x80) || // Overlong
        (buf[i] === 0xf4 && buf[i + 1] > 0x8f) ||
        buf[i] > 0xf4 // > U+10FFFF
      ) {
        return false;
      }

      i += 4;
    } else {
      return false;
    }
  }

  return true;
}

try {
  let isValidUTF8 = require('utf-8-validate');

  /* istanbul ignore if */
  if (typeof isValidUTF8 === 'object') {
    isValidUTF8 = isValidUTF8.Validation.isValidUTF8; // utf-8-validate@<3.0.0
  }

  validation.exports = {
    isValidStatusCode: isValidStatusCode$2,
    isValidUTF8(buf) {
      return buf.length < 150 ? _isValidUTF8(buf) : isValidUTF8(buf);
    }
  };
} catch (e) /* istanbul ignore next */ {
  validation.exports = {
    isValidStatusCode: isValidStatusCode$2,
    isValidUTF8: _isValidUTF8
  };
}

const { Writable: Writable$1 } = require$$0__default$4;

const PerMessageDeflate$3 = permessageDeflate;
const {
  BINARY_TYPES: BINARY_TYPES$1,
  EMPTY_BUFFER: EMPTY_BUFFER$2,
  kStatusCode: kStatusCode$1,
  kWebSocket: kWebSocket$2
} = constants;
const { concat, toArrayBuffer, unmask } = bufferUtil$1.exports;
const { isValidStatusCode: isValidStatusCode$1, isValidUTF8 } = validation.exports;

const GET_INFO = 0;
const GET_PAYLOAD_LENGTH_16 = 1;
const GET_PAYLOAD_LENGTH_64 = 2;
const GET_MASK = 3;
const GET_DATA = 4;
const INFLATING = 5;

/**
 * HyBi Receiver implementation.
 *
 * @extends Writable
 */
class Receiver$1 extends Writable$1 {
  /**
   * Creates a Receiver instance.
   *
   * @param {String} [binaryType=nodebuffer] The type for binary data
   * @param {Object} [extensions] An object containing the negotiated extensions
   * @param {Boolean} [isServer=false] Specifies whether to operate in client or
   *     server mode
   * @param {Number} [maxPayload=0] The maximum allowed message length
   */
  constructor(binaryType, extensions, isServer, maxPayload) {
    super();

    this._binaryType = binaryType || BINARY_TYPES$1[0];
    this[kWebSocket$2] = undefined;
    this._extensions = extensions || {};
    this._isServer = !!isServer;
    this._maxPayload = maxPayload | 0;

    this._bufferedBytes = 0;
    this._buffers = [];

    this._compressed = false;
    this._payloadLength = 0;
    this._mask = undefined;
    this._fragmented = 0;
    this._masked = false;
    this._fin = false;
    this._opcode = 0;

    this._totalPayloadLength = 0;
    this._messageLength = 0;
    this._fragments = [];

    this._state = GET_INFO;
    this._loop = false;
  }

  /**
   * Implements `Writable.prototype._write()`.
   *
   * @param {Buffer} chunk The chunk of data to write
   * @param {String} encoding The character encoding of `chunk`
   * @param {Function} cb Callback
   * @private
   */
  _write(chunk, encoding, cb) {
    if (this._opcode === 0x08 && this._state == GET_INFO) return cb();

    this._bufferedBytes += chunk.length;
    this._buffers.push(chunk);
    this.startLoop(cb);
  }

  /**
   * Consumes `n` bytes from the buffered data.
   *
   * @param {Number} n The number of bytes to consume
   * @return {Buffer} The consumed bytes
   * @private
   */
  consume(n) {
    this._bufferedBytes -= n;

    if (n === this._buffers[0].length) return this._buffers.shift();

    if (n < this._buffers[0].length) {
      const buf = this._buffers[0];
      this._buffers[0] = buf.slice(n);
      return buf.slice(0, n);
    }

    const dst = Buffer.allocUnsafe(n);

    do {
      const buf = this._buffers[0];
      const offset = dst.length - n;

      if (n >= buf.length) {
        dst.set(this._buffers.shift(), offset);
      } else {
        dst.set(new Uint8Array(buf.buffer, buf.byteOffset, n), offset);
        this._buffers[0] = buf.slice(n);
      }

      n -= buf.length;
    } while (n > 0);

    return dst;
  }

  /**
   * Starts the parsing loop.
   *
   * @param {Function} cb Callback
   * @private
   */
  startLoop(cb) {
    let err;
    this._loop = true;

    do {
      switch (this._state) {
        case GET_INFO:
          err = this.getInfo();
          break;
        case GET_PAYLOAD_LENGTH_16:
          err = this.getPayloadLength16();
          break;
        case GET_PAYLOAD_LENGTH_64:
          err = this.getPayloadLength64();
          break;
        case GET_MASK:
          this.getMask();
          break;
        case GET_DATA:
          err = this.getData(cb);
          break;
        default:
          // `INFLATING`
          this._loop = false;
          return;
      }
    } while (this._loop);

    cb(err);
  }

  /**
   * Reads the first two bytes of a frame.
   *
   * @return {(RangeError|undefined)} A possible error
   * @private
   */
  getInfo() {
    if (this._bufferedBytes < 2) {
      this._loop = false;
      return;
    }

    const buf = this.consume(2);

    if ((buf[0] & 0x30) !== 0x00) {
      this._loop = false;
      return error$2(
        RangeError,
        'RSV2 and RSV3 must be clear',
        true,
        1002,
        'WS_ERR_UNEXPECTED_RSV_2_3'
      );
    }

    const compressed = (buf[0] & 0x40) === 0x40;

    if (compressed && !this._extensions[PerMessageDeflate$3.extensionName]) {
      this._loop = false;
      return error$2(
        RangeError,
        'RSV1 must be clear',
        true,
        1002,
        'WS_ERR_UNEXPECTED_RSV_1'
      );
    }

    this._fin = (buf[0] & 0x80) === 0x80;
    this._opcode = buf[0] & 0x0f;
    this._payloadLength = buf[1] & 0x7f;

    if (this._opcode === 0x00) {
      if (compressed) {
        this._loop = false;
        return error$2(
          RangeError,
          'RSV1 must be clear',
          true,
          1002,
          'WS_ERR_UNEXPECTED_RSV_1'
        );
      }

      if (!this._fragmented) {
        this._loop = false;
        return error$2(
          RangeError,
          'invalid opcode 0',
          true,
          1002,
          'WS_ERR_INVALID_OPCODE'
        );
      }

      this._opcode = this._fragmented;
    } else if (this._opcode === 0x01 || this._opcode === 0x02) {
      if (this._fragmented) {
        this._loop = false;
        return error$2(
          RangeError,
          `invalid opcode ${this._opcode}`,
          true,
          1002,
          'WS_ERR_INVALID_OPCODE'
        );
      }

      this._compressed = compressed;
    } else if (this._opcode > 0x07 && this._opcode < 0x0b) {
      if (!this._fin) {
        this._loop = false;
        return error$2(
          RangeError,
          'FIN must be set',
          true,
          1002,
          'WS_ERR_EXPECTED_FIN'
        );
      }

      if (compressed) {
        this._loop = false;
        return error$2(
          RangeError,
          'RSV1 must be clear',
          true,
          1002,
          'WS_ERR_UNEXPECTED_RSV_1'
        );
      }

      if (this._payloadLength > 0x7d) {
        this._loop = false;
        return error$2(
          RangeError,
          `invalid payload length ${this._payloadLength}`,
          true,
          1002,
          'WS_ERR_INVALID_CONTROL_PAYLOAD_LENGTH'
        );
      }
    } else {
      this._loop = false;
      return error$2(
        RangeError,
        `invalid opcode ${this._opcode}`,
        true,
        1002,
        'WS_ERR_INVALID_OPCODE'
      );
    }

    if (!this._fin && !this._fragmented) this._fragmented = this._opcode;
    this._masked = (buf[1] & 0x80) === 0x80;

    if (this._isServer) {
      if (!this._masked) {
        this._loop = false;
        return error$2(
          RangeError,
          'MASK must be set',
          true,
          1002,
          'WS_ERR_EXPECTED_MASK'
        );
      }
    } else if (this._masked) {
      this._loop = false;
      return error$2(
        RangeError,
        'MASK must be clear',
        true,
        1002,
        'WS_ERR_UNEXPECTED_MASK'
      );
    }

    if (this._payloadLength === 126) this._state = GET_PAYLOAD_LENGTH_16;
    else if (this._payloadLength === 127) this._state = GET_PAYLOAD_LENGTH_64;
    else return this.haveLength();
  }

  /**
   * Gets extended payload length (7+16).
   *
   * @return {(RangeError|undefined)} A possible error
   * @private
   */
  getPayloadLength16() {
    if (this._bufferedBytes < 2) {
      this._loop = false;
      return;
    }

    this._payloadLength = this.consume(2).readUInt16BE(0);
    return this.haveLength();
  }

  /**
   * Gets extended payload length (7+64).
   *
   * @return {(RangeError|undefined)} A possible error
   * @private
   */
  getPayloadLength64() {
    if (this._bufferedBytes < 8) {
      this._loop = false;
      return;
    }

    const buf = this.consume(8);
    const num = buf.readUInt32BE(0);

    //
    // The maximum safe integer in JavaScript is 2^53 - 1. An error is returned
    // if payload length is greater than this number.
    //
    if (num > Math.pow(2, 53 - 32) - 1) {
      this._loop = false;
      return error$2(
        RangeError,
        'Unsupported WebSocket frame: payload length > 2^53 - 1',
        false,
        1009,
        'WS_ERR_UNSUPPORTED_DATA_PAYLOAD_LENGTH'
      );
    }

    this._payloadLength = num * Math.pow(2, 32) + buf.readUInt32BE(4);
    return this.haveLength();
  }

  /**
   * Payload length has been read.
   *
   * @return {(RangeError|undefined)} A possible error
   * @private
   */
  haveLength() {
    if (this._payloadLength && this._opcode < 0x08) {
      this._totalPayloadLength += this._payloadLength;
      if (this._totalPayloadLength > this._maxPayload && this._maxPayload > 0) {
        this._loop = false;
        return error$2(
          RangeError,
          'Max payload size exceeded',
          false,
          1009,
          'WS_ERR_UNSUPPORTED_MESSAGE_LENGTH'
        );
      }
    }

    if (this._masked) this._state = GET_MASK;
    else this._state = GET_DATA;
  }

  /**
   * Reads mask bytes.
   *
   * @private
   */
  getMask() {
    if (this._bufferedBytes < 4) {
      this._loop = false;
      return;
    }

    this._mask = this.consume(4);
    this._state = GET_DATA;
  }

  /**
   * Reads data bytes.
   *
   * @param {Function} cb Callback
   * @return {(Error|RangeError|undefined)} A possible error
   * @private
   */
  getData(cb) {
    let data = EMPTY_BUFFER$2;

    if (this._payloadLength) {
      if (this._bufferedBytes < this._payloadLength) {
        this._loop = false;
        return;
      }

      data = this.consume(this._payloadLength);
      if (this._masked) unmask(data, this._mask);
    }

    if (this._opcode > 0x07) return this.controlMessage(data);

    if (this._compressed) {
      this._state = INFLATING;
      this.decompress(data, cb);
      return;
    }

    if (data.length) {
      //
      // This message is not compressed so its lenght is the sum of the payload
      // length of all fragments.
      //
      this._messageLength = this._totalPayloadLength;
      this._fragments.push(data);
    }

    return this.dataMessage();
  }

  /**
   * Decompresses data.
   *
   * @param {Buffer} data Compressed data
   * @param {Function} cb Callback
   * @private
   */
  decompress(data, cb) {
    const perMessageDeflate = this._extensions[PerMessageDeflate$3.extensionName];

    perMessageDeflate.decompress(data, this._fin, (err, buf) => {
      if (err) return cb(err);

      if (buf.length) {
        this._messageLength += buf.length;
        if (this._messageLength > this._maxPayload && this._maxPayload > 0) {
          return cb(
            error$2(
              RangeError,
              'Max payload size exceeded',
              false,
              1009,
              'WS_ERR_UNSUPPORTED_MESSAGE_LENGTH'
            )
          );
        }

        this._fragments.push(buf);
      }

      const er = this.dataMessage();
      if (er) return cb(er);

      this.startLoop(cb);
    });
  }

  /**
   * Handles a data message.
   *
   * @return {(Error|undefined)} A possible error
   * @private
   */
  dataMessage() {
    if (this._fin) {
      const messageLength = this._messageLength;
      const fragments = this._fragments;

      this._totalPayloadLength = 0;
      this._messageLength = 0;
      this._fragmented = 0;
      this._fragments = [];

      if (this._opcode === 2) {
        let data;

        if (this._binaryType === 'nodebuffer') {
          data = concat(fragments, messageLength);
        } else if (this._binaryType === 'arraybuffer') {
          data = toArrayBuffer(concat(fragments, messageLength));
        } else {
          data = fragments;
        }

        this.emit('message', data);
      } else {
        const buf = concat(fragments, messageLength);

        if (!isValidUTF8(buf)) {
          this._loop = false;
          return error$2(
            Error,
            'invalid UTF-8 sequence',
            true,
            1007,
            'WS_ERR_INVALID_UTF8'
          );
        }

        this.emit('message', buf.toString());
      }
    }

    this._state = GET_INFO;
  }

  /**
   * Handles a control message.
   *
   * @param {Buffer} data Data to handle
   * @return {(Error|RangeError|undefined)} A possible error
   * @private
   */
  controlMessage(data) {
    if (this._opcode === 0x08) {
      this._loop = false;

      if (data.length === 0) {
        this.emit('conclude', 1005, '');
        this.end();
      } else if (data.length === 1) {
        return error$2(
          RangeError,
          'invalid payload length 1',
          true,
          1002,
          'WS_ERR_INVALID_CONTROL_PAYLOAD_LENGTH'
        );
      } else {
        const code = data.readUInt16BE(0);

        if (!isValidStatusCode$1(code)) {
          return error$2(
            RangeError,
            `invalid status code ${code}`,
            true,
            1002,
            'WS_ERR_INVALID_CLOSE_CODE'
          );
        }

        const buf = data.slice(2);

        if (!isValidUTF8(buf)) {
          return error$2(
            Error,
            'invalid UTF-8 sequence',
            true,
            1007,
            'WS_ERR_INVALID_UTF8'
          );
        }

        this.emit('conclude', code, buf.toString());
        this.end();
      }
    } else if (this._opcode === 0x09) {
      this.emit('ping', data);
    } else {
      this.emit('pong', data);
    }

    this._state = GET_INFO;
  }
}

var receiver = Receiver$1;

/**
 * Builds an error object.
 *
 * @param {function(new:Error|RangeError)} ErrorCtor The error constructor
 * @param {String} message The error message
 * @param {Boolean} prefix Specifies whether or not to add a default prefix to
 *     `message`
 * @param {Number} statusCode The status code
 * @param {String} errorCode The exposed error code
 * @return {(Error|RangeError)} The error
 * @private
 */
function error$2(ErrorCtor, message, prefix, statusCode, errorCode) {
  const err = new ErrorCtor(
    prefix ? `Invalid WebSocket frame: ${message}` : message
  );

  Error.captureStackTrace(err, error$2);
  err.code = errorCode;
  err[kStatusCode$1] = statusCode;
  return err;
}

/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^net|tls$" }] */
const { randomFillSync } = require$$1__default$2;

const PerMessageDeflate$2 = permessageDeflate;
const { EMPTY_BUFFER: EMPTY_BUFFER$1 } = constants;
const { isValidStatusCode } = validation.exports;
const { mask: applyMask, toBuffer: toBuffer$2 } = bufferUtil$1.exports;

const mask = Buffer.alloc(4);

/**
 * HyBi Sender implementation.
 */
class Sender$1 {
  /**
   * Creates a Sender instance.
   *
   * @param {(net.Socket|tls.Socket)} socket The connection socket
   * @param {Object} [extensions] An object containing the negotiated extensions
   */
  constructor(socket, extensions) {
    this._extensions = extensions || {};
    this._socket = socket;

    this._firstFragment = true;
    this._compress = false;

    this._bufferedBytes = 0;
    this._deflating = false;
    this._queue = [];
  }

  /**
   * Frames a piece of data according to the HyBi WebSocket protocol.
   *
   * @param {Buffer} data The data to frame
   * @param {Object} options Options object
   * @param {Number} options.opcode The opcode
   * @param {Boolean} [options.readOnly=false] Specifies whether `data` can be
   *     modified
   * @param {Boolean} [options.fin=false] Specifies whether or not to set the
   *     FIN bit
   * @param {Boolean} [options.mask=false] Specifies whether or not to mask
   *     `data`
   * @param {Boolean} [options.rsv1=false] Specifies whether or not to set the
   *     RSV1 bit
   * @return {Buffer[]} The framed data as a list of `Buffer` instances
   * @public
   */
  static frame(data, options) {
    const merge = options.mask && options.readOnly;
    let offset = options.mask ? 6 : 2;
    let payloadLength = data.length;

    if (data.length >= 65536) {
      offset += 8;
      payloadLength = 127;
    } else if (data.length > 125) {
      offset += 2;
      payloadLength = 126;
    }

    const target = Buffer.allocUnsafe(merge ? data.length + offset : offset);

    target[0] = options.fin ? options.opcode | 0x80 : options.opcode;
    if (options.rsv1) target[0] |= 0x40;

    target[1] = payloadLength;

    if (payloadLength === 126) {
      target.writeUInt16BE(data.length, 2);
    } else if (payloadLength === 127) {
      target.writeUInt32BE(0, 2);
      target.writeUInt32BE(data.length, 6);
    }

    if (!options.mask) return [target, data];

    randomFillSync(mask, 0, 4);

    target[1] |= 0x80;
    target[offset - 4] = mask[0];
    target[offset - 3] = mask[1];
    target[offset - 2] = mask[2];
    target[offset - 1] = mask[3];

    if (merge) {
      applyMask(data, mask, target, offset, data.length);
      return [target];
    }

    applyMask(data, mask, data, 0, data.length);
    return [target, data];
  }

  /**
   * Sends a close message to the other peer.
   *
   * @param {Number} [code] The status code component of the body
   * @param {String} [data] The message component of the body
   * @param {Boolean} [mask=false] Specifies whether or not to mask the message
   * @param {Function} [cb] Callback
   * @public
   */
  close(code, data, mask, cb) {
    let buf;

    if (code === undefined) {
      buf = EMPTY_BUFFER$1;
    } else if (typeof code !== 'number' || !isValidStatusCode(code)) {
      throw new TypeError('First argument must be a valid error code number');
    } else if (data === undefined || data === '') {
      buf = Buffer.allocUnsafe(2);
      buf.writeUInt16BE(code, 0);
    } else {
      const length = Buffer.byteLength(data);

      if (length > 123) {
        throw new RangeError('The message must not be greater than 123 bytes');
      }

      buf = Buffer.allocUnsafe(2 + length);
      buf.writeUInt16BE(code, 0);
      buf.write(data, 2);
    }

    if (this._deflating) {
      this.enqueue([this.doClose, buf, mask, cb]);
    } else {
      this.doClose(buf, mask, cb);
    }
  }

  /**
   * Frames and sends a close message.
   *
   * @param {Buffer} data The message to send
   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
   * @param {Function} [cb] Callback
   * @private
   */
  doClose(data, mask, cb) {
    this.sendFrame(
      Sender$1.frame(data, {
        fin: true,
        rsv1: false,
        opcode: 0x08,
        mask,
        readOnly: false
      }),
      cb
    );
  }

  /**
   * Sends a ping message to the other peer.
   *
   * @param {*} data The message to send
   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
   * @param {Function} [cb] Callback
   * @public
   */
  ping(data, mask, cb) {
    const buf = toBuffer$2(data);

    if (buf.length > 125) {
      throw new RangeError('The data size must not be greater than 125 bytes');
    }

    if (this._deflating) {
      this.enqueue([this.doPing, buf, mask, toBuffer$2.readOnly, cb]);
    } else {
      this.doPing(buf, mask, toBuffer$2.readOnly, cb);
    }
  }

  /**
   * Frames and sends a ping message.
   *
   * @param {Buffer} data The message to send
   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
   * @param {Boolean} [readOnly=false] Specifies whether `data` can be modified
   * @param {Function} [cb] Callback
   * @private
   */
  doPing(data, mask, readOnly, cb) {
    this.sendFrame(
      Sender$1.frame(data, {
        fin: true,
        rsv1: false,
        opcode: 0x09,
        mask,
        readOnly
      }),
      cb
    );
  }

  /**
   * Sends a pong message to the other peer.
   *
   * @param {*} data The message to send
   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
   * @param {Function} [cb] Callback
   * @public
   */
  pong(data, mask, cb) {
    const buf = toBuffer$2(data);

    if (buf.length > 125) {
      throw new RangeError('The data size must not be greater than 125 bytes');
    }

    if (this._deflating) {
      this.enqueue([this.doPong, buf, mask, toBuffer$2.readOnly, cb]);
    } else {
      this.doPong(buf, mask, toBuffer$2.readOnly, cb);
    }
  }

  /**
   * Frames and sends a pong message.
   *
   * @param {Buffer} data The message to send
   * @param {Boolean} [mask=false] Specifies whether or not to mask `data`
   * @param {Boolean} [readOnly=false] Specifies whether `data` can be modified
   * @param {Function} [cb] Callback
   * @private
   */
  doPong(data, mask, readOnly, cb) {
    this.sendFrame(
      Sender$1.frame(data, {
        fin: true,
        rsv1: false,
        opcode: 0x0a,
        mask,
        readOnly
      }),
      cb
    );
  }

  /**
   * Sends a data message to the other peer.
   *
   * @param {*} data The message to send
   * @param {Object} options Options object
   * @param {Boolean} [options.compress=false] Specifies whether or not to
   *     compress `data`
   * @param {Boolean} [options.binary=false] Specifies whether `data` is binary
   *     or text
   * @param {Boolean} [options.fin=false] Specifies whether the fragment is the
   *     last one
   * @param {Boolean} [options.mask=false] Specifies whether or not to mask
   *     `data`
   * @param {Function} [cb] Callback
   * @public
   */
  send(data, options, cb) {
    const buf = toBuffer$2(data);
    const perMessageDeflate = this._extensions[PerMessageDeflate$2.extensionName];
    let opcode = options.binary ? 2 : 1;
    let rsv1 = options.compress;

    if (this._firstFragment) {
      this._firstFragment = false;
      if (rsv1 && perMessageDeflate) {
        rsv1 = buf.length >= perMessageDeflate._threshold;
      }
      this._compress = rsv1;
    } else {
      rsv1 = false;
      opcode = 0;
    }

    if (options.fin) this._firstFragment = true;

    if (perMessageDeflate) {
      const opts = {
        fin: options.fin,
        rsv1,
        opcode,
        mask: options.mask,
        readOnly: toBuffer$2.readOnly
      };

      if (this._deflating) {
        this.enqueue([this.dispatch, buf, this._compress, opts, cb]);
      } else {
        this.dispatch(buf, this._compress, opts, cb);
      }
    } else {
      this.sendFrame(
        Sender$1.frame(buf, {
          fin: options.fin,
          rsv1: false,
          opcode,
          mask: options.mask,
          readOnly: toBuffer$2.readOnly
        }),
        cb
      );
    }
  }

  /**
   * Dispatches a data message.
   *
   * @param {Buffer} data The message to send
   * @param {Boolean} [compress=false] Specifies whether or not to compress
   *     `data`
   * @param {Object} options Options object
   * @param {Number} options.opcode The opcode
   * @param {Boolean} [options.readOnly=false] Specifies whether `data` can be
   *     modified
   * @param {Boolean} [options.fin=false] Specifies whether or not to set the
   *     FIN bit
   * @param {Boolean} [options.mask=false] Specifies whether or not to mask
   *     `data`
   * @param {Boolean} [options.rsv1=false] Specifies whether or not to set the
   *     RSV1 bit
   * @param {Function} [cb] Callback
   * @private
   */
  dispatch(data, compress, options, cb) {
    if (!compress) {
      this.sendFrame(Sender$1.frame(data, options), cb);
      return;
    }

    const perMessageDeflate = this._extensions[PerMessageDeflate$2.extensionName];

    this._bufferedBytes += data.length;
    this._deflating = true;
    perMessageDeflate.compress(data, options.fin, (_, buf) => {
      if (this._socket.destroyed) {
        const err = new Error(
          'The socket was closed while data was being compressed'
        );

        if (typeof cb === 'function') cb(err);

        for (let i = 0; i < this._queue.length; i++) {
          const callback = this._queue[i][4];

          if (typeof callback === 'function') callback(err);
        }

        return;
      }

      this._bufferedBytes -= data.length;
      this._deflating = false;
      options.readOnly = false;
      this.sendFrame(Sender$1.frame(buf, options), cb);
      this.dequeue();
    });
  }

  /**
   * Executes queued send operations.
   *
   * @private
   */
  dequeue() {
    while (!this._deflating && this._queue.length) {
      const params = this._queue.shift();

      this._bufferedBytes -= params[1].length;
      Reflect.apply(params[0], this, params.slice(1));
    }
  }

  /**
   * Enqueues a send operation.
   *
   * @param {Array} params Send operation parameters.
   * @private
   */
  enqueue(params) {
    this._bufferedBytes += params[1].length;
    this._queue.push(params);
  }

  /**
   * Sends a frame.
   *
   * @param {Buffer[]} list The frame to send
   * @param {Function} [cb] Callback
   * @private
   */
  sendFrame(list, cb) {
    if (list.length === 2) {
      this._socket.cork();
      this._socket.write(list[0]);
      this._socket.write(list[1], cb);
      this._socket.uncork();
    } else {
      this._socket.write(list[0], cb);
    }
  }
}

var sender = Sender$1;

/**
 * Class representing an event.
 *
 * @private
 */
class Event {
  /**
   * Create a new `Event`.
   *
   * @param {String} type The name of the event
   * @param {Object} target A reference to the target to which the event was
   *     dispatched
   */
  constructor(type, target) {
    this.target = target;
    this.type = type;
  }
}

/**
 * Class representing a message event.
 *
 * @extends Event
 * @private
 */
class MessageEvent extends Event {
  /**
   * Create a new `MessageEvent`.
   *
   * @param {(String|Buffer|ArrayBuffer|Buffer[])} data The received data
   * @param {WebSocket} target A reference to the target to which the event was
   *     dispatched
   */
  constructor(data, target) {
    super('message', target);

    this.data = data;
  }
}

/**
 * Class representing a close event.
 *
 * @extends Event
 * @private
 */
class CloseEvent extends Event {
  /**
   * Create a new `CloseEvent`.
   *
   * @param {Number} code The status code explaining why the connection is being
   *     closed
   * @param {String} reason A human-readable string explaining why the
   *     connection is closing
   * @param {WebSocket} target A reference to the target to which the event was
   *     dispatched
   */
  constructor(code, reason, target) {
    super('close', target);

    this.wasClean = target._closeFrameReceived && target._closeFrameSent;
    this.reason = reason;
    this.code = code;
  }
}

/**
 * Class representing an open event.
 *
 * @extends Event
 * @private
 */
class OpenEvent extends Event {
  /**
   * Create a new `OpenEvent`.
   *
   * @param {WebSocket} target A reference to the target to which the event was
   *     dispatched
   */
  constructor(target) {
    super('open', target);
  }
}

/**
 * Class representing an error event.
 *
 * @extends Event
 * @private
 */
class ErrorEvent extends Event {
  /**
   * Create a new `ErrorEvent`.
   *
   * @param {Object} error The error that generated this event
   * @param {WebSocket} target A reference to the target to which the event was
   *     dispatched
   */
  constructor(error, target) {
    super('error', target);

    this.message = error.message;
    this.error = error;
  }
}

/**
 * This provides methods for emulating the `EventTarget` interface. It's not
 * meant to be used directly.
 *
 * @mixin
 */
const EventTarget = {
  /**
   * Register an event listener.
   *
   * @param {String} type A string representing the event type to listen for
   * @param {Function} listener The listener to add
   * @param {Object} [options] An options object specifies characteristics about
   *     the event listener
   * @param {Boolean} [options.once=false] A `Boolean`` indicating that the
   *     listener should be invoked at most once after being added. If `true`,
   *     the listener would be automatically removed when invoked.
   * @public
   */
  addEventListener(type, listener, options) {
    if (typeof listener !== 'function') return;

    function onMessage(data) {
      listener.call(this, new MessageEvent(data, this));
    }

    function onClose(code, message) {
      listener.call(this, new CloseEvent(code, message, this));
    }

    function onError(error) {
      listener.call(this, new ErrorEvent(error, this));
    }

    function onOpen() {
      listener.call(this, new OpenEvent(this));
    }

    const method = options && options.once ? 'once' : 'on';

    if (type === 'message') {
      onMessage._listener = listener;
      this[method](type, onMessage);
    } else if (type === 'close') {
      onClose._listener = listener;
      this[method](type, onClose);
    } else if (type === 'error') {
      onError._listener = listener;
      this[method](type, onError);
    } else if (type === 'open') {
      onOpen._listener = listener;
      this[method](type, onOpen);
    } else {
      this[method](type, listener);
    }
  },

  /**
   * Remove an event listener.
   *
   * @param {String} type A string representing the event type to remove
   * @param {Function} listener The listener to remove
   * @public
   */
  removeEventListener(type, listener) {
    const listeners = this.listeners(type);

    for (let i = 0; i < listeners.length; i++) {
      if (listeners[i] === listener || listeners[i]._listener === listener) {
        this.removeListener(type, listeners[i]);
      }
    }
  }
};

var eventTarget = EventTarget;

//
// Allowed token characters:
//
// '!', '#', '$', '%', '&', ''', '*', '+', '-',
// '.', 0-9, A-Z, '^', '_', '`', a-z, '|', '~'
//
// tokenChars[32] === 0 // ' '
// tokenChars[33] === 1 // '!'
// tokenChars[34] === 0 // '"'
// ...
//
// prettier-ignore
const tokenChars = [
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0 - 15
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31
  0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, // 32 - 47
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 48 - 63
  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 64 - 79
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, // 80 - 95
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 96 - 111
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0 // 112 - 127
];

/**
 * Adds an offer to the map of extension offers or a parameter to the map of
 * parameters.
 *
 * @param {Object} dest The map of extension offers or parameters
 * @param {String} name The extension or parameter name
 * @param {(Object|Boolean|String)} elem The extension parameters or the
 *     parameter value
 * @private
 */
function push(dest, name, elem) {
  if (dest[name] === undefined) dest[name] = [elem];
  else dest[name].push(elem);
}

/**
 * Parses the `Sec-WebSocket-Extensions` header into an object.
 *
 * @param {String} header The field value of the header
 * @return {Object} The parsed object
 * @public
 */
function parse$8(header) {
  const offers = Object.create(null);

  if (header === undefined || header === '') return offers;

  let params = Object.create(null);
  let mustUnescape = false;
  let isEscaping = false;
  let inQuotes = false;
  let extensionName;
  let paramName;
  let start = -1;
  let end = -1;
  let i = 0;

  for (; i < header.length; i++) {
    const code = header.charCodeAt(i);

    if (extensionName === undefined) {
      if (end === -1 && tokenChars[code] === 1) {
        if (start === -1) start = i;
      } else if (code === 0x20 /* ' ' */ || code === 0x09 /* '\t' */) {
        if (end === -1 && start !== -1) end = i;
      } else if (code === 0x3b /* ';' */ || code === 0x2c /* ',' */) {
        if (start === -1) {
          throw new SyntaxError(`Unexpected character at index ${i}`);
        }

        if (end === -1) end = i;
        const name = header.slice(start, end);
        if (code === 0x2c) {
          push(offers, name, params);
          params = Object.create(null);
        } else {
          extensionName = name;
        }

        start = end = -1;
      } else {
        throw new SyntaxError(`Unexpected character at index ${i}`);
      }
    } else if (paramName === undefined) {
      if (end === -1 && tokenChars[code] === 1) {
        if (start === -1) start = i;
      } else if (code === 0x20 || code === 0x09) {
        if (end === -1 && start !== -1) end = i;
      } else if (code === 0x3b || code === 0x2c) {
        if (start === -1) {
          throw new SyntaxError(`Unexpected character at index ${i}`);
        }

        if (end === -1) end = i;
        push(params, header.slice(start, end), true);
        if (code === 0x2c) {
          push(offers, extensionName, params);
          params = Object.create(null);
          extensionName = undefined;
        }

        start = end = -1;
      } else if (code === 0x3d /* '=' */ && start !== -1 && end === -1) {
        paramName = header.slice(start, i);
        start = end = -1;
      } else {
        throw new SyntaxError(`Unexpected character at index ${i}`);
      }
    } else {
      //
      // The value of a quoted-string after unescaping must conform to the
      // token ABNF, so only token characters are valid.
      // Ref: https://tools.ietf.org/html/rfc6455#section-9.1
      //
      if (isEscaping) {
        if (tokenChars[code] !== 1) {
          throw new SyntaxError(`Unexpected character at index ${i}`);
        }
        if (start === -1) start = i;
        else if (!mustUnescape) mustUnescape = true;
        isEscaping = false;
      } else if (inQuotes) {
        if (tokenChars[code] === 1) {
          if (start === -1) start = i;
        } else if (code === 0x22 /* '"' */ && start !== -1) {
          inQuotes = false;
          end = i;
        } else if (code === 0x5c /* '\' */) {
          isEscaping = true;
        } else {
          throw new SyntaxError(`Unexpected character at index ${i}`);
        }
      } else if (code === 0x22 && header.charCodeAt(i - 1) === 0x3d) {
        inQuotes = true;
      } else if (end === -1 && tokenChars[code] === 1) {
        if (start === -1) start = i;
      } else if (start !== -1 && (code === 0x20 || code === 0x09)) {
        if (end === -1) end = i;
      } else if (code === 0x3b || code === 0x2c) {
        if (start === -1) {
          throw new SyntaxError(`Unexpected character at index ${i}`);
        }

        if (end === -1) end = i;
        let value = header.slice(start, end);
        if (mustUnescape) {
          value = value.replace(/\\/g, '');
          mustUnescape = false;
        }
        push(params, paramName, value);
        if (code === 0x2c) {
          push(offers, extensionName, params);
          params = Object.create(null);
          extensionName = undefined;
        }

        paramName = undefined;
        start = end = -1;
      } else {
        throw new SyntaxError(`Unexpected character at index ${i}`);
      }
    }
  }

  if (start === -1 || inQuotes) {
    throw new SyntaxError('Unexpected end of input');
  }

  if (end === -1) end = i;
  const token = header.slice(start, end);
  if (extensionName === undefined) {
    push(offers, token, params);
  } else {
    if (paramName === undefined) {
      push(params, token, true);
    } else if (mustUnescape) {
      push(params, paramName, token.replace(/\\/g, ''));
    } else {
      push(params, paramName, token);
    }
    push(offers, extensionName, params);
  }

  return offers;
}

/**
 * Builds the `Sec-WebSocket-Extensions` header field value.
 *
 * @param {Object} extensions The map of extensions and parameters to format
 * @return {String} A string representing the given object
 * @public
 */
function format$3(extensions) {
  return Object.keys(extensions)
    .map((extension) => {
      let configurations = extensions[extension];
      if (!Array.isArray(configurations)) configurations = [configurations];
      return configurations
        .map((params) => {
          return [extension]
            .concat(
              Object.keys(params).map((k) => {
                let values = params[k];
                if (!Array.isArray(values)) values = [values];
                return values
                  .map((v) => (v === true ? k : `${k}=${v}`))
                  .join('; ');
              })
            )
            .join('; ');
        })
        .join(', ');
    })
    .join(', ');
}

var extension = { format: format$3, parse: parse$8 };

/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^Readable$" }] */

const EventEmitter$1 = require$$0__default$5;
const https$2 = require$$1__default$3;
const http$3 = require$$1__default$1;
const net = require$$3__default;
const tls = require$$4__default;
const { randomBytes, createHash: createHash$1 } = require$$1__default$2;
const { URL: URL$2 } = require$$0__default$6;

const PerMessageDeflate$1 = permessageDeflate;
const Receiver = receiver;
const Sender = sender;
const {
  BINARY_TYPES,
  EMPTY_BUFFER,
  GUID: GUID$1,
  kStatusCode,
  kWebSocket: kWebSocket$1,
  NOOP
} = constants;
const { addEventListener, removeEventListener } = eventTarget;
const { format: format$2, parse: parse$7 } = extension;
const { toBuffer: toBuffer$1 } = bufferUtil$1.exports;

const readyStates = ['CONNECTING', 'OPEN', 'CLOSING', 'CLOSED'];
const protocolVersions = [8, 13];
const closeTimeout = 30 * 1000;

/**
 * Class representing a WebSocket.
 *
 * @extends EventEmitter
 */
class WebSocket$2 extends EventEmitter$1 {
  /**
   * Create a new `WebSocket`.
   *
   * @param {(String|URL)} address The URL to which to connect
   * @param {(String|String[])} [protocols] The subprotocols
   * @param {Object} [options] Connection options
   */
  constructor(address, protocols, options) {
    super();

    this._binaryType = BINARY_TYPES[0];
    this._closeCode = 1006;
    this._closeFrameReceived = false;
    this._closeFrameSent = false;
    this._closeMessage = '';
    this._closeTimer = null;
    this._extensions = {};
    this._protocol = '';
    this._readyState = WebSocket$2.CONNECTING;
    this._receiver = null;
    this._sender = null;
    this._socket = null;

    if (address !== null) {
      this._bufferedAmount = 0;
      this._isServer = false;
      this._redirects = 0;

      if (Array.isArray(protocols)) {
        protocols = protocols.join(', ');
      } else if (typeof protocols === 'object' && protocols !== null) {
        options = protocols;
        protocols = undefined;
      }

      initAsClient(this, address, protocols, options);
    } else {
      this._isServer = true;
    }
  }

  /**
   * This deviates from the WHATWG interface since ws doesn't support the
   * required default "blob" type (instead we define a custom "nodebuffer"
   * type).
   *
   * @type {String}
   */
  get binaryType() {
    return this._binaryType;
  }

  set binaryType(type) {
    if (!BINARY_TYPES.includes(type)) return;

    this._binaryType = type;

    //
    // Allow to change `binaryType` on the fly.
    //
    if (this._receiver) this._receiver._binaryType = type;
  }

  /**
   * @type {Number}
   */
  get bufferedAmount() {
    if (!this._socket) return this._bufferedAmount;

    return this._socket._writableState.length + this._sender._bufferedBytes;
  }

  /**
   * @type {String}
   */
  get extensions() {
    return Object.keys(this._extensions).join();
  }

  /**
   * @type {Function}
   */
  /* istanbul ignore next */
  get onclose() {
    return undefined;
  }

  /* istanbul ignore next */
  set onclose(listener) {}

  /**
   * @type {Function}
   */
  /* istanbul ignore next */
  get onerror() {
    return undefined;
  }

  /* istanbul ignore next */
  set onerror(listener) {}

  /**
   * @type {Function}
   */
  /* istanbul ignore next */
  get onopen() {
    return undefined;
  }

  /* istanbul ignore next */
  set onopen(listener) {}

  /**
   * @type {Function}
   */
  /* istanbul ignore next */
  get onmessage() {
    return undefined;
  }

  /* istanbul ignore next */
  set onmessage(listener) {}

  /**
   * @type {String}
   */
  get protocol() {
    return this._protocol;
  }

  /**
   * @type {Number}
   */
  get readyState() {
    return this._readyState;
  }

  /**
   * @type {String}
   */
  get url() {
    return this._url;
  }

  /**
   * Set up the socket and the internal resources.
   *
   * @param {(net.Socket|tls.Socket)} socket The network socket between the
   *     server and client
   * @param {Buffer} head The first packet of the upgraded stream
   * @param {Number} [maxPayload=0] The maximum allowed message size
   * @private
   */
  setSocket(socket, head, maxPayload) {
    const receiver = new Receiver(
      this.binaryType,
      this._extensions,
      this._isServer,
      maxPayload
    );

    this._sender = new Sender(socket, this._extensions);
    this._receiver = receiver;
    this._socket = socket;

    receiver[kWebSocket$1] = this;
    socket[kWebSocket$1] = this;

    receiver.on('conclude', receiverOnConclude);
    receiver.on('drain', receiverOnDrain);
    receiver.on('error', receiverOnError);
    receiver.on('message', receiverOnMessage);
    receiver.on('ping', receiverOnPing);
    receiver.on('pong', receiverOnPong);

    socket.setTimeout(0);
    socket.setNoDelay();

    if (head.length > 0) socket.unshift(head);

    socket.on('close', socketOnClose);
    socket.on('data', socketOnData);
    socket.on('end', socketOnEnd);
    socket.on('error', socketOnError$1);

    this._readyState = WebSocket$2.OPEN;
    this.emit('open');
  }

  /**
   * Emit the `'close'` event.
   *
   * @private
   */
  emitClose() {
    if (!this._socket) {
      this._readyState = WebSocket$2.CLOSED;
      this.emit('close', this._closeCode, this._closeMessage);
      return;
    }

    if (this._extensions[PerMessageDeflate$1.extensionName]) {
      this._extensions[PerMessageDeflate$1.extensionName].cleanup();
    }

    this._receiver.removeAllListeners();
    this._readyState = WebSocket$2.CLOSED;
    this.emit('close', this._closeCode, this._closeMessage);
  }

  /**
   * Start a closing handshake.
   *
   *          +----------+   +-----------+   +----------+
   *     - - -|ws.close()|-->|close frame|-->|ws.close()|- - -
   *    |     +----------+   +-----------+   +----------+     |
   *          +----------+   +-----------+         |
   * CLOSING  |ws.close()|<--|close frame|<--+-----+       CLOSING
   *          +----------+   +-----------+   |
   *    |           |                        |   +---+        |
   *                +------------------------+-->|fin| - - - -
   *    |         +---+                      |   +---+
   *     - - - - -|fin|<---------------------+
   *              +---+
   *
   * @param {Number} [code] Status code explaining why the connection is closing
   * @param {String} [data] A string explaining why the connection is closing
   * @public
   */
  close(code, data) {
    if (this.readyState === WebSocket$2.CLOSED) return;
    if (this.readyState === WebSocket$2.CONNECTING) {
      const msg = 'WebSocket was closed before the connection was established';
      return abortHandshake$1(this, this._req, msg);
    }

    if (this.readyState === WebSocket$2.CLOSING) {
      if (
        this._closeFrameSent &&
        (this._closeFrameReceived || this._receiver._writableState.errorEmitted)
      ) {
        this._socket.end();
      }

      return;
    }

    this._readyState = WebSocket$2.CLOSING;
    this._sender.close(code, data, !this._isServer, (err) => {
      //
      // This error is handled by the `'error'` listener on the socket. We only
      // want to know if the close frame has been sent here.
      //
      if (err) return;

      this._closeFrameSent = true;

      if (
        this._closeFrameReceived ||
        this._receiver._writableState.errorEmitted
      ) {
        this._socket.end();
      }
    });

    //
    // Specify a timeout for the closing handshake to complete.
    //
    this._closeTimer = setTimeout(
      this._socket.destroy.bind(this._socket),
      closeTimeout
    );
  }

  /**
   * Send a ping.
   *
   * @param {*} [data] The data to send
   * @param {Boolean} [mask] Indicates whether or not to mask `data`
   * @param {Function} [cb] Callback which is executed when the ping is sent
   * @public
   */
  ping(data, mask, cb) {
    if (this.readyState === WebSocket$2.CONNECTING) {
      throw new Error('WebSocket is not open: readyState 0 (CONNECTING)');
    }

    if (typeof data === 'function') {
      cb = data;
      data = mask = undefined;
    } else if (typeof mask === 'function') {
      cb = mask;
      mask = undefined;
    }

    if (typeof data === 'number') data = data.toString();

    if (this.readyState !== WebSocket$2.OPEN) {
      sendAfterClose(this, data, cb);
      return;
    }

    if (mask === undefined) mask = !this._isServer;
    this._sender.ping(data || EMPTY_BUFFER, mask, cb);
  }

  /**
   * Send a pong.
   *
   * @param {*} [data] The data to send
   * @param {Boolean} [mask] Indicates whether or not to mask `data`
   * @param {Function} [cb] Callback which is executed when the pong is sent
   * @public
   */
  pong(data, mask, cb) {
    if (this.readyState === WebSocket$2.CONNECTING) {
      throw new Error('WebSocket is not open: readyState 0 (CONNECTING)');
    }

    if (typeof data === 'function') {
      cb = data;
      data = mask = undefined;
    } else if (typeof mask === 'function') {
      cb = mask;
      mask = undefined;
    }

    if (typeof data === 'number') data = data.toString();

    if (this.readyState !== WebSocket$2.OPEN) {
      sendAfterClose(this, data, cb);
      return;
    }

    if (mask === undefined) mask = !this._isServer;
    this._sender.pong(data || EMPTY_BUFFER, mask, cb);
  }

  /**
   * Send a data message.
   *
   * @param {*} data The message to send
   * @param {Object} [options] Options object
   * @param {Boolean} [options.compress] Specifies whether or not to compress
   *     `data`
   * @param {Boolean} [options.binary] Specifies whether `data` is binary or
   *     text
   * @param {Boolean} [options.fin=true] Specifies whether the fragment is the
   *     last one
   * @param {Boolean} [options.mask] Specifies whether or not to mask `data`
   * @param {Function} [cb] Callback which is executed when data is written out
   * @public
   */
  send(data, options, cb) {
    if (this.readyState === WebSocket$2.CONNECTING) {
      throw new Error('WebSocket is not open: readyState 0 (CONNECTING)');
    }

    if (typeof options === 'function') {
      cb = options;
      options = {};
    }

    if (typeof data === 'number') data = data.toString();

    if (this.readyState !== WebSocket$2.OPEN) {
      sendAfterClose(this, data, cb);
      return;
    }

    const opts = {
      binary: typeof data !== 'string',
      mask: !this._isServer,
      compress: true,
      fin: true,
      ...options
    };

    if (!this._extensions[PerMessageDeflate$1.extensionName]) {
      opts.compress = false;
    }

    this._sender.send(data || EMPTY_BUFFER, opts, cb);
  }

  /**
   * Forcibly close the connection.
   *
   * @public
   */
  terminate() {
    if (this.readyState === WebSocket$2.CLOSED) return;
    if (this.readyState === WebSocket$2.CONNECTING) {
      const msg = 'WebSocket was closed before the connection was established';
      return abortHandshake$1(this, this._req, msg);
    }

    if (this._socket) {
      this._readyState = WebSocket$2.CLOSING;
      this._socket.destroy();
    }
  }
}

/**
 * @constant {Number} CONNECTING
 * @memberof WebSocket
 */
Object.defineProperty(WebSocket$2, 'CONNECTING', {
  enumerable: true,
  value: readyStates.indexOf('CONNECTING')
});

/**
 * @constant {Number} CONNECTING
 * @memberof WebSocket.prototype
 */
Object.defineProperty(WebSocket$2.prototype, 'CONNECTING', {
  enumerable: true,
  value: readyStates.indexOf('CONNECTING')
});

/**
 * @constant {Number} OPEN
 * @memberof WebSocket
 */
Object.defineProperty(WebSocket$2, 'OPEN', {
  enumerable: true,
  value: readyStates.indexOf('OPEN')
});

/**
 * @constant {Number} OPEN
 * @memberof WebSocket.prototype
 */
Object.defineProperty(WebSocket$2.prototype, 'OPEN', {
  enumerable: true,
  value: readyStates.indexOf('OPEN')
});

/**
 * @constant {Number} CLOSING
 * @memberof WebSocket
 */
Object.defineProperty(WebSocket$2, 'CLOSING', {
  enumerable: true,
  value: readyStates.indexOf('CLOSING')
});

/**
 * @constant {Number} CLOSING
 * @memberof WebSocket.prototype
 */
Object.defineProperty(WebSocket$2.prototype, 'CLOSING', {
  enumerable: true,
  value: readyStates.indexOf('CLOSING')
});

/**
 * @constant {Number} CLOSED
 * @memberof WebSocket
 */
Object.defineProperty(WebSocket$2, 'CLOSED', {
  enumerable: true,
  value: readyStates.indexOf('CLOSED')
});

/**
 * @constant {Number} CLOSED
 * @memberof WebSocket.prototype
 */
Object.defineProperty(WebSocket$2.prototype, 'CLOSED', {
  enumerable: true,
  value: readyStates.indexOf('CLOSED')
});

[
  'binaryType',
  'bufferedAmount',
  'extensions',
  'protocol',
  'readyState',
  'url'
].forEach((property) => {
  Object.defineProperty(WebSocket$2.prototype, property, { enumerable: true });
});

//
// Add the `onopen`, `onerror`, `onclose`, and `onmessage` attributes.
// See https://html.spec.whatwg.org/multipage/comms.html#the-websocket-interface
//
['open', 'error', 'close', 'message'].forEach((method) => {
  Object.defineProperty(WebSocket$2.prototype, `on${method}`, {
    enumerable: true,
    get() {
      const listeners = this.listeners(method);
      for (let i = 0; i < listeners.length; i++) {
        if (listeners[i]._listener) return listeners[i]._listener;
      }

      return undefined;
    },
    set(listener) {
      const listeners = this.listeners(method);
      for (let i = 0; i < listeners.length; i++) {
        //
        // Remove only the listeners added via `addEventListener`.
        //
        if (listeners[i]._listener) this.removeListener(method, listeners[i]);
      }
      this.addEventListener(method, listener);
    }
  });
});

WebSocket$2.prototype.addEventListener = addEventListener;
WebSocket$2.prototype.removeEventListener = removeEventListener;

var websocket = WebSocket$2;

/**
 * Initialize a WebSocket client.
 *
 * @param {WebSocket} websocket The client to initialize
 * @param {(String|URL)} address The URL to which to connect
 * @param {String} [protocols] The subprotocols
 * @param {Object} [options] Connection options
 * @param {(Boolean|Object)} [options.perMessageDeflate=true] Enable/disable
 *     permessage-deflate
 * @param {Number} [options.handshakeTimeout] Timeout in milliseconds for the
 *     handshake request
 * @param {Number} [options.protocolVersion=13] Value of the
 *     `Sec-WebSocket-Version` header
 * @param {String} [options.origin] Value of the `Origin` or
 *     `Sec-WebSocket-Origin` header
 * @param {Number} [options.maxPayload=104857600] The maximum allowed message
 *     size
 * @param {Boolean} [options.followRedirects=false] Whether or not to follow
 *     redirects
 * @param {Number} [options.maxRedirects=10] The maximum number of redirects
 *     allowed
 * @private
 */
function initAsClient(websocket, address, protocols, options) {
  const opts = {
    protocolVersion: protocolVersions[1],
    maxPayload: 100 * 1024 * 1024,
    perMessageDeflate: true,
    followRedirects: false,
    maxRedirects: 10,
    ...options,
    createConnection: undefined,
    socketPath: undefined,
    hostname: undefined,
    protocol: undefined,
    timeout: undefined,
    method: undefined,
    host: undefined,
    path: undefined,
    port: undefined
  };

  if (!protocolVersions.includes(opts.protocolVersion)) {
    throw new RangeError(
      `Unsupported protocol version: ${opts.protocolVersion} ` +
        `(supported versions: ${protocolVersions.join(', ')})`
    );
  }

  let parsedUrl;

  if (address instanceof URL$2) {
    parsedUrl = address;
    websocket._url = address.href;
  } else {
    parsedUrl = new URL$2(address);
    websocket._url = address;
  }

  const isUnixSocket = parsedUrl.protocol === 'ws+unix:';

  if (!parsedUrl.host && (!isUnixSocket || !parsedUrl.pathname)) {
    throw new Error(`Invalid URL: ${websocket.url}`);
  }

  const isSecure =
    parsedUrl.protocol === 'wss:' || parsedUrl.protocol === 'https:';
  const defaultPort = isSecure ? 443 : 80;
  const key = randomBytes(16).toString('base64');
  const get = isSecure ? https$2.get : http$3.get;
  let perMessageDeflate;

  opts.createConnection = isSecure ? tlsConnect : netConnect;
  opts.defaultPort = opts.defaultPort || defaultPort;
  opts.port = parsedUrl.port || defaultPort;
  opts.host = parsedUrl.hostname.startsWith('[')
    ? parsedUrl.hostname.slice(1, -1)
    : parsedUrl.hostname;
  opts.headers = {
    'Sec-WebSocket-Version': opts.protocolVersion,
    'Sec-WebSocket-Key': key,
    Connection: 'Upgrade',
    Upgrade: 'websocket',
    ...opts.headers
  };
  opts.path = parsedUrl.pathname + parsedUrl.search;
  opts.timeout = opts.handshakeTimeout;

  if (opts.perMessageDeflate) {
    perMessageDeflate = new PerMessageDeflate$1(
      opts.perMessageDeflate !== true ? opts.perMessageDeflate : {},
      false,
      opts.maxPayload
    );
    opts.headers['Sec-WebSocket-Extensions'] = format$2({
      [PerMessageDeflate$1.extensionName]: perMessageDeflate.offer()
    });
  }
  if (protocols) {
    opts.headers['Sec-WebSocket-Protocol'] = protocols;
  }
  if (opts.origin) {
    if (opts.protocolVersion < 13) {
      opts.headers['Sec-WebSocket-Origin'] = opts.origin;
    } else {
      opts.headers.Origin = opts.origin;
    }
  }
  if (parsedUrl.username || parsedUrl.password) {
    opts.auth = `${parsedUrl.username}:${parsedUrl.password}`;
  }

  if (isUnixSocket) {
    const parts = opts.path.split(':');

    opts.socketPath = parts[0];
    opts.path = parts[1];
  }

  let req = (websocket._req = get(opts));

  if (opts.timeout) {
    req.on('timeout', () => {
      abortHandshake$1(websocket, req, 'Opening handshake has timed out');
    });
  }

  req.on('error', (err) => {
    if (req === null || req.aborted) return;

    req = websocket._req = null;
    websocket._readyState = WebSocket$2.CLOSING;
    websocket.emit('error', err);
    websocket.emitClose();
  });

  req.on('response', (res) => {
    const location = res.headers.location;
    const statusCode = res.statusCode;

    if (
      location &&
      opts.followRedirects &&
      statusCode >= 300 &&
      statusCode < 400
    ) {
      if (++websocket._redirects > opts.maxRedirects) {
        abortHandshake$1(websocket, req, 'Maximum redirects exceeded');
        return;
      }

      req.abort();

      const addr = new URL$2(location, address);

      initAsClient(websocket, addr, protocols, options);
    } else if (!websocket.emit('unexpected-response', req, res)) {
      abortHandshake$1(
        websocket,
        req,
        `Unexpected server response: ${res.statusCode}`
      );
    }
  });

  req.on('upgrade', (res, socket, head) => {
    websocket.emit('upgrade', res);

    //
    // The user may have closed the connection from a listener of the `upgrade`
    // event.
    //
    if (websocket.readyState !== WebSocket$2.CONNECTING) return;

    req = websocket._req = null;

    const digest = createHash$1('sha1')
      .update(key + GUID$1)
      .digest('base64');

    if (res.headers['sec-websocket-accept'] !== digest) {
      abortHandshake$1(websocket, socket, 'Invalid Sec-WebSocket-Accept header');
      return;
    }

    const serverProt = res.headers['sec-websocket-protocol'];
    const protList = (protocols || '').split(/, */);
    let protError;

    if (!protocols && serverProt) {
      protError = 'Server sent a subprotocol but none was requested';
    } else if (protocols && !serverProt) {
      protError = 'Server sent no subprotocol';
    } else if (serverProt && !protList.includes(serverProt)) {
      protError = 'Server sent an invalid subprotocol';
    }

    if (protError) {
      abortHandshake$1(websocket, socket, protError);
      return;
    }

    if (serverProt) websocket._protocol = serverProt;

    const secWebSocketExtensions = res.headers['sec-websocket-extensions'];

    if (secWebSocketExtensions !== undefined) {
      if (!perMessageDeflate) {
        const message =
          'Server sent a Sec-WebSocket-Extensions header but no extension ' +
          'was requested';
        abortHandshake$1(websocket, socket, message);
        return;
      }

      let extensions;

      try {
        extensions = parse$7(secWebSocketExtensions);
      } catch (err) {
        const message = 'Invalid Sec-WebSocket-Extensions header';
        abortHandshake$1(websocket, socket, message);
        return;
      }

      const extensionNames = Object.keys(extensions);

      if (extensionNames.length) {
        if (
          extensionNames.length !== 1 ||
          extensionNames[0] !== PerMessageDeflate$1.extensionName
        ) {
          const message =
            'Server indicated an extension that was not requested';
          abortHandshake$1(websocket, socket, message);
          return;
        }

        try {
          perMessageDeflate.accept(extensions[PerMessageDeflate$1.extensionName]);
        } catch (err) {
          const message = 'Invalid Sec-WebSocket-Extensions header';
          abortHandshake$1(websocket, socket, message);
          return;
        }

        websocket._extensions[PerMessageDeflate$1.extensionName] =
          perMessageDeflate;
      }
    }

    websocket.setSocket(socket, head, opts.maxPayload);
  });
}

/**
 * Create a `net.Socket` and initiate a connection.
 *
 * @param {Object} options Connection options
 * @return {net.Socket} The newly created socket used to start the connection
 * @private
 */
function netConnect(options) {
  options.path = options.socketPath;
  return net.connect(options);
}

/**
 * Create a `tls.TLSSocket` and initiate a connection.
 *
 * @param {Object} options Connection options
 * @return {tls.TLSSocket} The newly created socket used to start the connection
 * @private
 */
function tlsConnect(options) {
  options.path = undefined;

  if (!options.servername && options.servername !== '') {
    options.servername = net.isIP(options.host) ? '' : options.host;
  }

  return tls.connect(options);
}

/**
 * Abort the handshake and emit an error.
 *
 * @param {WebSocket} websocket The WebSocket instance
 * @param {(http.ClientRequest|net.Socket|tls.Socket)} stream The request to
 *     abort or the socket to destroy
 * @param {String} message The error message
 * @private
 */
function abortHandshake$1(websocket, stream, message) {
  websocket._readyState = WebSocket$2.CLOSING;

  const err = new Error(message);
  Error.captureStackTrace(err, abortHandshake$1);

  if (stream.setHeader) {
    stream.abort();

    if (stream.socket && !stream.socket.destroyed) {
      //
      // On Node.js >= 14.3.0 `request.abort()` does not destroy the socket if
      // called after the request completed. See
      // https://github.com/websockets/ws/issues/1869.
      //
      stream.socket.destroy();
    }

    stream.once('abort', websocket.emitClose.bind(websocket));
    websocket.emit('error', err);
  } else {
    stream.destroy(err);
    stream.once('error', websocket.emit.bind(websocket, 'error'));
    stream.once('close', websocket.emitClose.bind(websocket));
  }
}

/**
 * Handle cases where the `ping()`, `pong()`, or `send()` methods are called
 * when the `readyState` attribute is `CLOSING` or `CLOSED`.
 *
 * @param {WebSocket} websocket The WebSocket instance
 * @param {*} [data] The data to send
 * @param {Function} [cb] Callback
 * @private
 */
function sendAfterClose(websocket, data, cb) {
  if (data) {
    const length = toBuffer$1(data).length;

    //
    // The `_bufferedAmount` property is used only when the peer is a client and
    // the opening handshake fails. Under these circumstances, in fact, the
    // `setSocket()` method is not called, so the `_socket` and `_sender`
    // properties are set to `null`.
    //
    if (websocket._socket) websocket._sender._bufferedBytes += length;
    else websocket._bufferedAmount += length;
  }

  if (cb) {
    const err = new Error(
      `WebSocket is not open: readyState ${websocket.readyState} ` +
        `(${readyStates[websocket.readyState]})`
    );
    cb(err);
  }
}

/**
 * The listener of the `Receiver` `'conclude'` event.
 *
 * @param {Number} code The status code
 * @param {String} reason The reason for closing
 * @private
 */
function receiverOnConclude(code, reason) {
  const websocket = this[kWebSocket$1];

  websocket._closeFrameReceived = true;
  websocket._closeMessage = reason;
  websocket._closeCode = code;

  if (websocket._socket[kWebSocket$1] === undefined) return;

  websocket._socket.removeListener('data', socketOnData);
  process.nextTick(resume, websocket._socket);

  if (code === 1005) websocket.close();
  else websocket.close(code, reason);
}

/**
 * The listener of the `Receiver` `'drain'` event.
 *
 * @private
 */
function receiverOnDrain() {
  this[kWebSocket$1]._socket.resume();
}

/**
 * The listener of the `Receiver` `'error'` event.
 *
 * @param {(RangeError|Error)} err The emitted error
 * @private
 */
function receiverOnError(err) {
  const websocket = this[kWebSocket$1];

  if (websocket._socket[kWebSocket$1] !== undefined) {
    websocket._socket.removeListener('data', socketOnData);

    //
    // On Node.js < 14.0.0 the `'error'` event is emitted synchronously. See
    // https://github.com/websockets/ws/issues/1940.
    //
    process.nextTick(resume, websocket._socket);

    websocket.close(err[kStatusCode]);
  }

  websocket.emit('error', err);
}

/**
 * The listener of the `Receiver` `'finish'` event.
 *
 * @private
 */
function receiverOnFinish() {
  this[kWebSocket$1].emitClose();
}

/**
 * The listener of the `Receiver` `'message'` event.
 *
 * @param {(String|Buffer|ArrayBuffer|Buffer[])} data The message
 * @private
 */
function receiverOnMessage(data) {
  this[kWebSocket$1].emit('message', data);
}

/**
 * The listener of the `Receiver` `'ping'` event.
 *
 * @param {Buffer} data The data included in the ping frame
 * @private
 */
function receiverOnPing(data) {
  const websocket = this[kWebSocket$1];

  websocket.pong(data, !websocket._isServer, NOOP);
  websocket.emit('ping', data);
}

/**
 * The listener of the `Receiver` `'pong'` event.
 *
 * @param {Buffer} data The data included in the pong frame
 * @private
 */
function receiverOnPong(data) {
  this[kWebSocket$1].emit('pong', data);
}

/**
 * Resume a readable stream
 *
 * @param {Readable} stream The readable stream
 * @private
 */
function resume(stream) {
  stream.resume();
}

/**
 * The listener of the `net.Socket` `'close'` event.
 *
 * @private
 */
function socketOnClose() {
  const websocket = this[kWebSocket$1];

  this.removeListener('close', socketOnClose);
  this.removeListener('data', socketOnData);
  this.removeListener('end', socketOnEnd);

  websocket._readyState = WebSocket$2.CLOSING;

  let chunk;

  //
  // The close frame might not have been received or the `'end'` event emitted,
  // for example, if the socket was destroyed due to an error. Ensure that the
  // `receiver` stream is closed after writing any remaining buffered data to
  // it. If the readable side of the socket is in flowing mode then there is no
  // buffered data as everything has been already written and `readable.read()`
  // will return `null`. If instead, the socket is paused, any possible buffered
  // data will be read as a single chunk.
  //
  if (
    !this._readableState.endEmitted &&
    !websocket._closeFrameReceived &&
    !websocket._receiver._writableState.errorEmitted &&
    (chunk = websocket._socket.read()) !== null
  ) {
    websocket._receiver.write(chunk);
  }

  websocket._receiver.end();

  this[kWebSocket$1] = undefined;

  clearTimeout(websocket._closeTimer);

  if (
    websocket._receiver._writableState.finished ||
    websocket._receiver._writableState.errorEmitted
  ) {
    websocket.emitClose();
  } else {
    websocket._receiver.on('error', receiverOnFinish);
    websocket._receiver.on('finish', receiverOnFinish);
  }
}

/**
 * The listener of the `net.Socket` `'data'` event.
 *
 * @param {Buffer} chunk A chunk of data
 * @private
 */
function socketOnData(chunk) {
  if (!this[kWebSocket$1]._receiver.write(chunk)) {
    this.pause();
  }
}

/**
 * The listener of the `net.Socket` `'end'` event.
 *
 * @private
 */
function socketOnEnd() {
  const websocket = this[kWebSocket$1];

  websocket._readyState = WebSocket$2.CLOSING;
  websocket._receiver.end();
  this.end();
}

/**
 * The listener of the `net.Socket` `'error'` event.
 *
 * @private
 */
function socketOnError$1() {
  const websocket = this[kWebSocket$1];

  this.removeListener('error', socketOnError$1);
  this.on('error', NOOP);

  if (websocket) {
    websocket._readyState = WebSocket$2.CLOSING;
    this.destroy();
  }
}

const { Duplex } = require$$0__default$4;

/**
 * Emits the `'close'` event on a stream.
 *
 * @param {Duplex} stream The stream.
 * @private
 */
function emitClose$1(stream) {
  stream.emit('close');
}

/**
 * The listener of the `'end'` event.
 *
 * @private
 */
function duplexOnEnd() {
  if (!this.destroyed && this._writableState.finished) {
    this.destroy();
  }
}

/**
 * The listener of the `'error'` event.
 *
 * @param {Error} err The error
 * @private
 */
function duplexOnError(err) {
  this.removeListener('error', duplexOnError);
  this.destroy();
  if (this.listenerCount('error') === 0) {
    // Do not suppress the throwing behavior.
    this.emit('error', err);
  }
}

/**
 * Wraps a `WebSocket` in a duplex stream.
 *
 * @param {WebSocket} ws The `WebSocket` to wrap
 * @param {Object} [options] The options for the `Duplex` constructor
 * @return {Duplex} The duplex stream
 * @public
 */
function createWebSocketStream(ws, options) {
  let resumeOnReceiverDrain = true;
  let terminateOnDestroy = true;

  function receiverOnDrain() {
    if (resumeOnReceiverDrain) ws._socket.resume();
  }

  if (ws.readyState === ws.CONNECTING) {
    ws.once('open', function open() {
      ws._receiver.removeAllListeners('drain');
      ws._receiver.on('drain', receiverOnDrain);
    });
  } else {
    ws._receiver.removeAllListeners('drain');
    ws._receiver.on('drain', receiverOnDrain);
  }

  const duplex = new Duplex({
    ...options,
    autoDestroy: false,
    emitClose: false,
    objectMode: false,
    writableObjectMode: false
  });

  ws.on('message', function message(msg) {
    if (!duplex.push(msg)) {
      resumeOnReceiverDrain = false;
      ws._socket.pause();
    }
  });

  ws.once('error', function error(err) {
    if (duplex.destroyed) return;

    // Prevent `ws.terminate()` from being called by `duplex._destroy()`.
    //
    // - If the `'error'` event is emitted before the `'open'` event, then
    //   `ws.terminate()` is a noop as no socket is assigned.
    // - Otherwise, the error is re-emitted by the listener of the `'error'`
    //   event of the `Receiver` object. The listener already closes the
    //   connection by calling `ws.close()`. This allows a close frame to be
    //   sent to the other peer. If `ws.terminate()` is called right after this,
    //   then the close frame might not be sent.
    terminateOnDestroy = false;
    duplex.destroy(err);
  });

  ws.once('close', function close() {
    if (duplex.destroyed) return;

    duplex.push(null);
  });

  duplex._destroy = function (err, callback) {
    if (ws.readyState === ws.CLOSED) {
      callback(err);
      process.nextTick(emitClose$1, duplex);
      return;
    }

    let called = false;

    ws.once('error', function error(err) {
      called = true;
      callback(err);
    });

    ws.once('close', function close() {
      if (!called) callback(err);
      process.nextTick(emitClose$1, duplex);
    });

    if (terminateOnDestroy) ws.terminate();
  };

  duplex._final = function (callback) {
    if (ws.readyState === ws.CONNECTING) {
      ws.once('open', function open() {
        duplex._final(callback);
      });
      return;
    }

    // If the value of the `_socket` property is `null` it means that `ws` is a
    // client websocket and the handshake failed. In fact, when this happens, a
    // socket is never assigned to the websocket. Wait for the `'error'` event
    // that will be emitted by the websocket.
    if (ws._socket === null) return;

    if (ws._socket._writableState.finished) {
      callback();
      if (duplex._readableState.endEmitted) duplex.destroy();
    } else {
      ws._socket.once('finish', function finish() {
        // `duplex` is not destroyed here because the `'end'` event will be
        // emitted on `duplex` after this `'finish'` event. The EOF signaling
        // `null` chunk is, in fact, pushed when the websocket emits `'close'`.
        callback();
      });
      ws.close();
    }
  };

  duplex._read = function () {
    if (ws.readyState === ws.OPEN && !resumeOnReceiverDrain) {
      resumeOnReceiverDrain = true;
      if (!ws._receiver._writableState.needDrain) ws._socket.resume();
    }
  };

  duplex._write = function (chunk, encoding, callback) {
    if (ws.readyState === ws.CONNECTING) {
      ws.once('open', function open() {
        duplex._write(chunk, encoding, callback);
      });
      return;
    }

    ws.send(chunk, callback);
  };

  duplex.on('end', duplexOnEnd);
  duplex.on('error', duplexOnError);
  return duplex;
}

var stream$2 = createWebSocketStream;

/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^net|tls|https$" }] */

const EventEmitter = require$$0__default$5;
const http$2 = require$$1__default$1;
const { createHash } = require$$1__default$2;

const PerMessageDeflate = permessageDeflate;
const WebSocket$1 = websocket;
const { format: format$1, parse: parse$6 } = extension;
const { GUID, kWebSocket } = constants;

const keyRegex = /^[+/0-9A-Za-z]{22}==$/;

const RUNNING = 0;
const CLOSING = 1;
const CLOSED = 2;

/**
 * Class representing a WebSocket server.
 *
 * @extends EventEmitter
 */
class WebSocketServer extends EventEmitter {
  /**
   * Create a `WebSocketServer` instance.
   *
   * @param {Object} options Configuration options
   * @param {Number} [options.backlog=511] The maximum length of the queue of
   *     pending connections
   * @param {Boolean} [options.clientTracking=true] Specifies whether or not to
   *     track clients
   * @param {Function} [options.handleProtocols] A hook to handle protocols
   * @param {String} [options.host] The hostname where to bind the server
   * @param {Number} [options.maxPayload=104857600] The maximum allowed message
   *     size
   * @param {Boolean} [options.noServer=false] Enable no server mode
   * @param {String} [options.path] Accept only connections matching this path
   * @param {(Boolean|Object)} [options.perMessageDeflate=false] Enable/disable
   *     permessage-deflate
   * @param {Number} [options.port] The port where to bind the server
   * @param {(http.Server|https.Server)} [options.server] A pre-created HTTP/S
   *     server to use
   * @param {Function} [options.verifyClient] A hook to reject connections
   * @param {Function} [callback] A listener for the `listening` event
   */
  constructor(options, callback) {
    super();

    options = {
      maxPayload: 100 * 1024 * 1024,
      perMessageDeflate: false,
      handleProtocols: null,
      clientTracking: true,
      verifyClient: null,
      noServer: false,
      backlog: null, // use default (511 as implemented in net.js)
      server: null,
      host: null,
      path: null,
      port: null,
      ...options
    };

    if (
      (options.port == null && !options.server && !options.noServer) ||
      (options.port != null && (options.server || options.noServer)) ||
      (options.server && options.noServer)
    ) {
      throw new TypeError(
        'One and only one of the "port", "server", or "noServer" options ' +
          'must be specified'
      );
    }

    if (options.port != null) {
      this._server = http$2.createServer((req, res) => {
        const body = http$2.STATUS_CODES[426];

        res.writeHead(426, {
          'Content-Length': body.length,
          'Content-Type': 'text/plain'
        });
        res.end(body);
      });
      this._server.listen(
        options.port,
        options.host,
        options.backlog,
        callback
      );
    } else if (options.server) {
      this._server = options.server;
    }

    if (this._server) {
      const emitConnection = this.emit.bind(this, 'connection');

      this._removeListeners = addListeners$1(this._server, {
        listening: this.emit.bind(this, 'listening'),
        error: this.emit.bind(this, 'error'),
        upgrade: (req, socket, head) => {
          this.handleUpgrade(req, socket, head, emitConnection);
        }
      });
    }

    if (options.perMessageDeflate === true) options.perMessageDeflate = {};
    if (options.clientTracking) this.clients = new Set();
    this.options = options;
    this._state = RUNNING;
  }

  /**
   * Returns the bound address, the address family name, and port of the server
   * as reported by the operating system if listening on an IP socket.
   * If the server is listening on a pipe or UNIX domain socket, the name is
   * returned as a string.
   *
   * @return {(Object|String|null)} The address of the server
   * @public
   */
  address() {
    if (this.options.noServer) {
      throw new Error('The server is operating in "noServer" mode');
    }

    if (!this._server) return null;
    return this._server.address();
  }

  /**
   * Close the server.
   *
   * @param {Function} [cb] Callback
   * @public
   */
  close(cb) {
    if (cb) this.once('close', cb);

    if (this._state === CLOSED) {
      process.nextTick(emitClose, this);
      return;
    }

    if (this._state === CLOSING) return;
    this._state = CLOSING;

    //
    // Terminate all associated clients.
    //
    if (this.clients) {
      for (const client of this.clients) client.terminate();
    }

    const server = this._server;

    if (server) {
      this._removeListeners();
      this._removeListeners = this._server = null;

      //
      // Close the http server if it was internally created.
      //
      if (this.options.port != null) {
        server.close(emitClose.bind(undefined, this));
        return;
      }
    }

    process.nextTick(emitClose, this);
  }

  /**
   * See if a given request should be handled by this server instance.
   *
   * @param {http.IncomingMessage} req Request object to inspect
   * @return {Boolean} `true` if the request is valid, else `false`
   * @public
   */
  shouldHandle(req) {
    if (this.options.path) {
      const index = req.url.indexOf('?');
      const pathname = index !== -1 ? req.url.slice(0, index) : req.url;

      if (pathname !== this.options.path) return false;
    }

    return true;
  }

  /**
   * Handle a HTTP Upgrade request.
   *
   * @param {http.IncomingMessage} req The request object
   * @param {(net.Socket|tls.Socket)} socket The network socket between the
   *     server and client
   * @param {Buffer} head The first packet of the upgraded stream
   * @param {Function} cb Callback
   * @public
   */
  handleUpgrade(req, socket, head, cb) {
    socket.on('error', socketOnError);

    const key =
      req.headers['sec-websocket-key'] !== undefined
        ? req.headers['sec-websocket-key'].trim()
        : false;
    const version = +req.headers['sec-websocket-version'];
    const extensions = {};

    if (
      req.method !== 'GET' ||
      req.headers.upgrade.toLowerCase() !== 'websocket' ||
      !key ||
      !keyRegex.test(key) ||
      (version !== 8 && version !== 13) ||
      !this.shouldHandle(req)
    ) {
      return abortHandshake(socket, 400);
    }

    if (this.options.perMessageDeflate) {
      const perMessageDeflate = new PerMessageDeflate(
        this.options.perMessageDeflate,
        true,
        this.options.maxPayload
      );

      try {
        const offers = parse$6(req.headers['sec-websocket-extensions']);

        if (offers[PerMessageDeflate.extensionName]) {
          perMessageDeflate.accept(offers[PerMessageDeflate.extensionName]);
          extensions[PerMessageDeflate.extensionName] = perMessageDeflate;
        }
      } catch (err) {
        return abortHandshake(socket, 400);
      }
    }

    //
    // Optionally call external client verification handler.
    //
    if (this.options.verifyClient) {
      const info = {
        origin:
          req.headers[`${version === 8 ? 'sec-websocket-origin' : 'origin'}`],
        secure: !!(req.socket.authorized || req.socket.encrypted),
        req
      };

      if (this.options.verifyClient.length === 2) {
        this.options.verifyClient(info, (verified, code, message, headers) => {
          if (!verified) {
            return abortHandshake(socket, code || 401, message, headers);
          }

          this.completeUpgrade(key, extensions, req, socket, head, cb);
        });
        return;
      }

      if (!this.options.verifyClient(info)) return abortHandshake(socket, 401);
    }

    this.completeUpgrade(key, extensions, req, socket, head, cb);
  }

  /**
   * Upgrade the connection to WebSocket.
   *
   * @param {String} key The value of the `Sec-WebSocket-Key` header
   * @param {Object} extensions The accepted extensions
   * @param {http.IncomingMessage} req The request object
   * @param {(net.Socket|tls.Socket)} socket The network socket between the
   *     server and client
   * @param {Buffer} head The first packet of the upgraded stream
   * @param {Function} cb Callback
   * @throws {Error} If called more than once with the same socket
   * @private
   */
  completeUpgrade(key, extensions, req, socket, head, cb) {
    //
    // Destroy the socket if the client has already sent a FIN packet.
    //
    if (!socket.readable || !socket.writable) return socket.destroy();

    if (socket[kWebSocket]) {
      throw new Error(
        'server.handleUpgrade() was called more than once with the same ' +
          'socket, possibly due to a misconfiguration'
      );
    }

    if (this._state > RUNNING) return abortHandshake(socket, 503);

    const digest = createHash('sha1')
      .update(key + GUID)
      .digest('base64');

    const headers = [
      'HTTP/1.1 101 Switching Protocols',
      'Upgrade: websocket',
      'Connection: Upgrade',
      `Sec-WebSocket-Accept: ${digest}`
    ];

    const ws = new WebSocket$1(null);
    let protocol = req.headers['sec-websocket-protocol'];

    if (protocol) {
      protocol = protocol.split(',').map(trim);

      //
      // Optionally call external protocol selection handler.
      //
      if (this.options.handleProtocols) {
        protocol = this.options.handleProtocols(protocol, req);
      } else {
        protocol = protocol[0];
      }

      if (protocol) {
        headers.push(`Sec-WebSocket-Protocol: ${protocol}`);
        ws._protocol = protocol;
      }
    }

    if (extensions[PerMessageDeflate.extensionName]) {
      const params = extensions[PerMessageDeflate.extensionName].params;
      const value = format$1({
        [PerMessageDeflate.extensionName]: [params]
      });
      headers.push(`Sec-WebSocket-Extensions: ${value}`);
      ws._extensions = extensions;
    }

    //
    // Allow external modification/inspection of handshake headers.
    //
    this.emit('headers', headers, req);

    socket.write(headers.concat('\r\n').join('\r\n'));
    socket.removeListener('error', socketOnError);

    ws.setSocket(socket, head, this.options.maxPayload);

    if (this.clients) {
      this.clients.add(ws);
      ws.on('close', () => this.clients.delete(ws));
    }

    cb(ws, req);
  }
}

var websocketServer = WebSocketServer;

/**
 * Add event listeners on an `EventEmitter` using a map of <event, listener>
 * pairs.
 *
 * @param {EventEmitter} server The event emitter
 * @param {Object.<String, Function>} map The listeners to add
 * @return {Function} A function that will remove the added listeners when
 *     called
 * @private
 */
function addListeners$1(server, map) {
  for (const event of Object.keys(map)) server.on(event, map[event]);

  return function removeListeners() {
    for (const event of Object.keys(map)) {
      server.removeListener(event, map[event]);
    }
  };
}

/**
 * Emit a `'close'` event on an `EventEmitter`.
 *
 * @param {EventEmitter} server The event emitter
 * @private
 */
function emitClose(server) {
  server._state = CLOSED;
  server.emit('close');
}

/**
 * Handle premature socket errors.
 *
 * @private
 */
function socketOnError() {
  this.destroy();
}

/**
 * Close the connection when preconditions are not fulfilled.
 *
 * @param {(net.Socket|tls.Socket)} socket The socket of the upgrade request
 * @param {Number} code The HTTP response status code
 * @param {String} [message] The HTTP response body
 * @param {Object} [headers] Additional HTTP response headers
 * @private
 */
function abortHandshake(socket, code, message, headers) {
  if (socket.writable) {
    message = message || http$2.STATUS_CODES[code];
    headers = {
      Connection: 'close',
      'Content-Type': 'text/html',
      'Content-Length': Buffer.byteLength(message),
      ...headers
    };

    socket.write(
      `HTTP/1.1 ${code} ${http$2.STATUS_CODES[code]}\r\n` +
        Object.keys(headers)
          .map((h) => `${h}: ${headers[h]}`)
          .join('\r\n') +
        '\r\n\r\n' +
        message
    );
  }

  socket.removeListener('error', socketOnError);
  socket.destroy();
}

/**
 * Remove whitespace characters from both ends of a string.
 *
 * @param {String} str The string
 * @return {String} A new string representing `str` stripped of whitespace
 *     characters from both its beginning and end
 * @private
 */
function trim(str) {
  return str.trim();
}

const WebSocket = websocket;

WebSocket.createWebSocketStream = stream$2;
WebSocket.Server = websocketServer;
WebSocket.Receiver = receiver;
WebSocket.Sender = sender;

var ws = WebSocket;

const HMR_HEADER = 'vite-hmr';
function createWebSocketServer(server, config, httpsOptions) {
    let wss;
    let httpsServer = undefined;
    const hmr = isObject$3(config.server.hmr) && config.server.hmr;
    const wsServer = (hmr && hmr.server) || server;
    if (wsServer) {
        wss = new ws.Server({ noServer: true });
        wsServer.on('upgrade', (req, socket, head) => {
            if (req.headers['sec-websocket-protocol'] === HMR_HEADER) {
                wss.handleUpgrade(req, socket, head, (ws) => {
                    wss.emit('connection', ws, req);
                });
            }
        });
    }
    else {
        const websocketServerOptions = {};
        const port = (hmr && hmr.port) || 24678;
        if (httpsOptions) {
            // if we're serving the middlewares over https, the ws library doesn't support automatically creating an https server, so we need to do it ourselves
            // create an inline https server and mount the websocket server to it
            httpsServer = require$$1$3.createServer(httpsOptions, (req, res) => {
                const statusCode = 426;
                const body = require$$1$2.STATUS_CODES[statusCode];
                if (!body)
                    throw new Error(`No body text found for the ${statusCode} status code`);
                res.writeHead(statusCode, {
                    'Content-Length': body.length,
                    'Content-Type': 'text/plain'
                });
                res.end(body);
            });
            httpsServer.listen(port);
            websocketServerOptions.server = httpsServer;
        }
        else {
            // we don't need to serve over https, just let ws handle its own server
            websocketServerOptions.port = port;
        }
        // vite dev server in middleware mode
        wss = new ws.Server(websocketServerOptions);
    }
    wss.on('connection', (socket) => {
        socket.send(JSON.stringify({ type: 'connected' }));
        if (bufferedError) {
            socket.send(JSON.stringify(bufferedError));
            bufferedError = null;
        }
    });
    wss.on('error', (e) => {
        if (e.code !== 'EADDRINUSE') {
            config.logger.error(source.red(`WebSocket server error:\n${e.stack || e.message}`), { error: e });
        }
    });
    // On page reloads, if a file fails to compile and returns 500, the server
    // sends the error payload before the client connection is established.
    // If we have no open clients, buffer the error and send it to the next
    // connected client.
    let bufferedError = null;
    return {
        on: wss.on.bind(wss),
        off: wss.off.bind(wss),
        send(payload) {
            if (payload.type === 'error' && !wss.clients.size) {
                bufferedError = payload;
                return;
            }
            const stringified = JSON.stringify(payload);
            wss.clients.forEach((client) => {
                if (client.readyState === ws.OPEN) {
                    client.send(stringified);
                }
            });
        },
        close() {
            return new Promise((resolve, reject) => {
                wss.close((err) => {
                    if (err) {
                        reject(err);
                    }
                    else {
                        if (httpsServer) {
                            httpsServer.close((err) => {
                                if (err) {
                                    reject(err);
                                }
                                else {
                                    resolve();
                                }
                            });
                        }
                        else {
                            resolve();
                        }
                    }
                });
            });
        }
    };
}

// this middleware is only active when (config.base !== '/')
function baseMiddleware({ config }) {
    const base = config.base;
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return function viteBaseMiddleware(req, res, next) {
        var _a;
        const url = req.url;
        const parsed = require$$0$8.parse(url);
        const path = parsed.pathname || '/';
        if (path.startsWith(base)) {
            // rewrite url to remove base.. this ensures that other middleware does
            // not need to consider base being prepended or not
            req.url = url.replace(base, '/');
            return next();
        }
        // skip redirect and error fallback on middleware mode, #4057
        if (config.server.middlewareMode) {
            return next();
        }
        if (path === '/' || path === '/index.html') {
            // redirect root visit to based url
            res.writeHead(302, {
                Location: base
            });
            res.end();
            return;
        }
        else if ((_a = req.headers.accept) === null || _a === void 0 ? void 0 : _a.includes('text/html')) {
            // non-based page visit
            const redirectPath = base + url.slice(1);
            res.writeHead(404, {
                'Content-Type': 'text/html'
            });
            res.end(`The server is configured with a public base URL of ${base} - ` +
                `did you mean to visit <a href="${redirectPath}">${redirectPath}</a> instead?`);
            return;
        }
        next();
    };
}

var httpProxy$2 = {exports: {}};

var eventemitter3 = {exports: {}};

(function (module) {

var has = Object.prototype.hasOwnProperty
  , prefix = '~';

/**
 * Constructor to create a storage for our `EE` objects.
 * An `Events` instance is a plain object whose properties are event names.
 *
 * @constructor
 * @private
 */
function Events() {}

//
// We try to not inherit from `Object.prototype`. In some engines creating an
// instance in this way is faster than calling `Object.create(null)` directly.
// If `Object.create(null)` is not supported we prefix the event names with a
// character to make sure that the built-in object properties are not
// overridden or used as an attack vector.
//
if (Object.create) {
  Events.prototype = Object.create(null);

  //
  // This hack is needed because the `__proto__` property is still inherited in
  // some old browsers like Android 4, iPhone 5.1, Opera 11 and Safari 5.
  //
  if (!new Events().__proto__) prefix = false;
}

/**
 * Representation of a single event listener.
 *
 * @param {Function} fn The listener function.
 * @param {*} context The context to invoke the listener with.
 * @param {Boolean} [once=false] Specify if the listener is a one-time listener.
 * @constructor
 * @private
 */
function EE(fn, context, once) {
  this.fn = fn;
  this.context = context;
  this.once = once || false;
}

/**
 * Add a listener for a given event.
 *
 * @param {EventEmitter} emitter Reference to the `EventEmitter` instance.
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn The listener function.
 * @param {*} context The context to invoke the listener with.
 * @param {Boolean} once Specify if the listener is a one-time listener.
 * @returns {EventEmitter}
 * @private
 */
function addListener(emitter, event, fn, context, once) {
  if (typeof fn !== 'function') {
    throw new TypeError('The listener must be a function');
  }

  var listener = new EE(fn, context || emitter, once)
    , evt = prefix ? prefix + event : event;

  if (!emitter._events[evt]) emitter._events[evt] = listener, emitter._eventsCount++;
  else if (!emitter._events[evt].fn) emitter._events[evt].push(listener);
  else emitter._events[evt] = [emitter._events[evt], listener];

  return emitter;
}

/**
 * Clear event by name.
 *
 * @param {EventEmitter} emitter Reference to the `EventEmitter` instance.
 * @param {(String|Symbol)} evt The Event name.
 * @private
 */
function clearEvent(emitter, evt) {
  if (--emitter._eventsCount === 0) emitter._events = new Events();
  else delete emitter._events[evt];
}

/**
 * Minimal `EventEmitter` interface that is molded against the Node.js
 * `EventEmitter` interface.
 *
 * @constructor
 * @public
 */
function EventEmitter() {
  this._events = new Events();
  this._eventsCount = 0;
}

/**
 * Return an array listing the events for which the emitter has registered
 * listeners.
 *
 * @returns {Array}
 * @public
 */
EventEmitter.prototype.eventNames = function eventNames() {
  var names = []
    , events
    , name;

  if (this._eventsCount === 0) return names;

  for (name in (events = this._events)) {
    if (has.call(events, name)) names.push(prefix ? name.slice(1) : name);
  }

  if (Object.getOwnPropertySymbols) {
    return names.concat(Object.getOwnPropertySymbols(events));
  }

  return names;
};

/**
 * Return the listeners registered for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @returns {Array} The registered listeners.
 * @public
 */
EventEmitter.prototype.listeners = function listeners(event) {
  var evt = prefix ? prefix + event : event
    , handlers = this._events[evt];

  if (!handlers) return [];
  if (handlers.fn) return [handlers.fn];

  for (var i = 0, l = handlers.length, ee = new Array(l); i < l; i++) {
    ee[i] = handlers[i].fn;
  }

  return ee;
};

/**
 * Return the number of listeners listening to a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @returns {Number} The number of listeners.
 * @public
 */
EventEmitter.prototype.listenerCount = function listenerCount(event) {
  var evt = prefix ? prefix + event : event
    , listeners = this._events[evt];

  if (!listeners) return 0;
  if (listeners.fn) return 1;
  return listeners.length;
};

/**
 * Calls each of the listeners registered for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @returns {Boolean} `true` if the event had listeners, else `false`.
 * @public
 */
EventEmitter.prototype.emit = function emit(event, a1, a2, a3, a4, a5) {
  var evt = prefix ? prefix + event : event;

  if (!this._events[evt]) return false;

  var listeners = this._events[evt]
    , len = arguments.length
    , args
    , i;

  if (listeners.fn) {
    if (listeners.once) this.removeListener(event, listeners.fn, undefined, true);

    switch (len) {
      case 1: return listeners.fn.call(listeners.context), true;
      case 2: return listeners.fn.call(listeners.context, a1), true;
      case 3: return listeners.fn.call(listeners.context, a1, a2), true;
      case 4: return listeners.fn.call(listeners.context, a1, a2, a3), true;
      case 5: return listeners.fn.call(listeners.context, a1, a2, a3, a4), true;
      case 6: return listeners.fn.call(listeners.context, a1, a2, a3, a4, a5), true;
    }

    for (i = 1, args = new Array(len -1); i < len; i++) {
      args[i - 1] = arguments[i];
    }

    listeners.fn.apply(listeners.context, args);
  } else {
    var length = listeners.length
      , j;

    for (i = 0; i < length; i++) {
      if (listeners[i].once) this.removeListener(event, listeners[i].fn, undefined, true);

      switch (len) {
        case 1: listeners[i].fn.call(listeners[i].context); break;
        case 2: listeners[i].fn.call(listeners[i].context, a1); break;
        case 3: listeners[i].fn.call(listeners[i].context, a1, a2); break;
        case 4: listeners[i].fn.call(listeners[i].context, a1, a2, a3); break;
        default:
          if (!args) for (j = 1, args = new Array(len -1); j < len; j++) {
            args[j - 1] = arguments[j];
          }

          listeners[i].fn.apply(listeners[i].context, args);
      }
    }
  }

  return true;
};

/**
 * Add a listener for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn The listener function.
 * @param {*} [context=this] The context to invoke the listener with.
 * @returns {EventEmitter} `this`.
 * @public
 */
EventEmitter.prototype.on = function on(event, fn, context) {
  return addListener(this, event, fn, context, false);
};

/**
 * Add a one-time listener for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn The listener function.
 * @param {*} [context=this] The context to invoke the listener with.
 * @returns {EventEmitter} `this`.
 * @public
 */
EventEmitter.prototype.once = function once(event, fn, context) {
  return addListener(this, event, fn, context, true);
};

/**
 * Remove the listeners of a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn Only remove the listeners that match this function.
 * @param {*} context Only remove the listeners that have this context.
 * @param {Boolean} once Only remove one-time listeners.
 * @returns {EventEmitter} `this`.
 * @public
 */
EventEmitter.prototype.removeListener = function removeListener(event, fn, context, once) {
  var evt = prefix ? prefix + event : event;

  if (!this._events[evt]) return this;
  if (!fn) {
    clearEvent(this, evt);
    return this;
  }

  var listeners = this._events[evt];

  if (listeners.fn) {
    if (
      listeners.fn === fn &&
      (!once || listeners.once) &&
      (!context || listeners.context === context)
    ) {
      clearEvent(this, evt);
    }
  } else {
    for (var i = 0, events = [], length = listeners.length; i < length; i++) {
      if (
        listeners[i].fn !== fn ||
        (once && !listeners[i].once) ||
        (context && listeners[i].context !== context)
      ) {
        events.push(listeners[i]);
      }
    }

    //
    // Reset the array, or remove it completely if we have no more listeners.
    //
    if (events.length) this._events[evt] = events.length === 1 ? events[0] : events;
    else clearEvent(this, evt);
  }

  return this;
};

/**
 * Remove all listeners, or those of the specified event.
 *
 * @param {(String|Symbol)} [event] The event name.
 * @returns {EventEmitter} `this`.
 * @public
 */
EventEmitter.prototype.removeAllListeners = function removeAllListeners(event) {
  var evt;

  if (event) {
    evt = prefix ? prefix + event : event;
    if (this._events[evt]) clearEvent(this, evt);
  } else {
    this._events = new Events();
    this._eventsCount = 0;
  }

  return this;
};

//
// Alias methods names because people roll like that.
//
EventEmitter.prototype.off = EventEmitter.prototype.removeListener;
EventEmitter.prototype.addListener = EventEmitter.prototype.on;

//
// Expose the prefix.
//
EventEmitter.prefixed = prefix;

//
// Allow `EventEmitter` to be imported as module namespace.
//
EventEmitter.EventEmitter = EventEmitter;

//
// Expose the module.
//
{
  module.exports = EventEmitter;
}
}(eventemitter3));

var common$3 = {};

/**
 * Check if we're required to add a port number.
 *
 * @see https://url.spec.whatwg.org/#default-port
 * @param {Number|String} port Port number we need to check
 * @param {String} protocol Protocol we need to check against.
 * @returns {Boolean} Is it a default port for the given protocol
 * @api private
 */
var requiresPort = function required(port, protocol) {
  protocol = protocol.split(':')[0];
  port = +port;

  if (!port) return false;

  switch (protocol) {
    case 'http':
    case 'ws':
    return port !== 80;

    case 'https':
    case 'wss':
    return port !== 443;

    case 'ftp':
    return port !== 21;

    case 'gopher':
    return port !== 70;

    case 'file':
    return false;
  }

  return port !== 0;
};

(function (exports) {
var common   = exports,
    url      = require$$0__default$6,
    extend   = require$$0__default$2._extend,
    required = requiresPort;

var upgradeHeader = /(^|,)\s*upgrade\s*($|,)/i,
    isSSL = /^https|wss/;

/**
 * Simple Regex for testing if protocol is https
 */
common.isSSL = isSSL;
/**
 * Copies the right headers from `options` and `req` to
 * `outgoing` which is then used to fire the proxied
 * request.
 *
 * Examples:
 *
 *    common.setupOutgoing(outgoing, options, req)
 *    // => { host: ..., hostname: ...}
 *
 * @param {Object} Outgoing Base object to be filled with required properties
 * @param {Object} Options Config object passed to the proxy
 * @param {ClientRequest} Req Request Object
 * @param {String} Forward String to select forward or target
 * 
 * @return {Object} Outgoing Object with all required properties set
 *
 * @api private
 */

common.setupOutgoing = function(outgoing, options, req, forward) {
  outgoing.port = options[forward || 'target'].port ||
                  (isSSL.test(options[forward || 'target'].protocol) ? 443 : 80);

  ['host', 'hostname', 'socketPath', 'pfx', 'key',
    'passphrase', 'cert', 'ca', 'ciphers', 'secureProtocol'].forEach(
    function(e) { outgoing[e] = options[forward || 'target'][e]; }
  );

  outgoing.method = options.method || req.method;
  outgoing.headers = extend({}, req.headers);

  if (options.headers){
    extend(outgoing.headers, options.headers);
  }

  if (options.auth) {
    outgoing.auth = options.auth;
  }
  
  if (options.ca) {
      outgoing.ca = options.ca;
  }

  if (isSSL.test(options[forward || 'target'].protocol)) {
    outgoing.rejectUnauthorized = (typeof options.secure === "undefined") ? true : options.secure;
  }


  outgoing.agent = options.agent || false;
  outgoing.localAddress = options.localAddress;

  //
  // Remark: If we are false and not upgrading, set the connection: close. This is the right thing to do
  // as node core doesn't handle this COMPLETELY properly yet.
  //
  if (!outgoing.agent) {
    outgoing.headers = outgoing.headers || {};
    if (typeof outgoing.headers.connection !== 'string'
        || !upgradeHeader.test(outgoing.headers.connection)
       ) { outgoing.headers.connection = 'close'; }
  }


  // the final path is target path + relative path requested by user:
  var target = options[forward || 'target'];
  var targetPath = target && options.prependPath !== false
    ? (target.path || '')
    : '';

  //
  // Remark: Can we somehow not use url.parse as a perf optimization?
  //
  var outgoingPath = !options.toProxy
    ? (url.parse(req.url).path || '')
    : req.url;

  //
  // Remark: ignorePath will just straight up ignore whatever the request's
  // path is. This can be labeled as FOOT-GUN material if you do not know what
  // you are doing and are using conflicting options.
  //
  outgoingPath = !options.ignorePath ? outgoingPath : '';

  outgoing.path = common.urlJoin(targetPath, outgoingPath);

  if (options.changeOrigin) {
    outgoing.headers.host =
      required(outgoing.port, options[forward || 'target'].protocol) && !hasPort(outgoing.host)
        ? outgoing.host + ':' + outgoing.port
        : outgoing.host;
  }
  return outgoing;
};

/**
 * Set the proper configuration for sockets,
 * set no delay and set keep alive, also set
 * the timeout to 0.
 *
 * Examples:
 *
 *    common.setupSocket(socket)
 *    // => Socket
 *
 * @param {Socket} Socket instance to setup
 * 
 * @return {Socket} Return the configured socket.
 *
 * @api private
 */

common.setupSocket = function(socket) {
  socket.setTimeout(0);
  socket.setNoDelay(true);

  socket.setKeepAlive(true, 0);

  return socket;
};

/**
 * Get the port number from the host. Or guess it based on the connection type.
 *
 * @param {Request} req Incoming HTTP request.
 *
 * @return {String} The port number.
 *
 * @api private
 */
common.getPort = function(req) {
  var res = req.headers.host ? req.headers.host.match(/:(\d+)/) : '';

  return res ?
    res[1] :
    common.hasEncryptedConnection(req) ? '443' : '80';
};

/**
 * Check if the request has an encrypted connection.
 *
 * @param {Request} req Incoming HTTP request.
 *
 * @return {Boolean} Whether the connection is encrypted or not.
 *
 * @api private
 */
common.hasEncryptedConnection = function(req) {
  return Boolean(req.connection.encrypted || req.connection.pair);
};

/**
 * OS-agnostic join (doesn't break on URLs like path.join does on Windows)>
 *
 * @return {String} The generated path.
 *
 * @api private
 */

common.urlJoin = function() {
    //
    // We do not want to mess with the query string. All we want to touch is the path.
    //
  var args = Array.prototype.slice.call(arguments),
      lastIndex = args.length - 1,
      last = args[lastIndex],
      lastSegs = last.split('?'),
      retSegs;

  args[lastIndex] = lastSegs.shift();

  //
  // Join all strings, but remove empty strings so we don't get extra slashes from
  // joining e.g. ['', 'am']
  //
  retSegs = [
    args.filter(Boolean).join('/')
        .replace(/\/+/g, '/')
        .replace('http:/', 'http://')
        .replace('https:/', 'https://')
  ];

  // Only join the query string if it exists so we don't have trailing a '?'
  // on every request

  // Handle case where there could be multiple ? in the URL.
  retSegs.push.apply(retSegs, lastSegs);

  return retSegs.join('?')
};

/**
 * Rewrites or removes the domain of a cookie header
 *
 * @param {String|Array} Header
 * @param {Object} Config, mapping of domain to rewritten domain.
 *                 '*' key to match any domain, null value to remove the domain.
 *
 * @api private
 */
common.rewriteCookieProperty = function rewriteCookieProperty(header, config, property) {
  if (Array.isArray(header)) {
    return header.map(function (headerElement) {
      return rewriteCookieProperty(headerElement, config, property);
    });
  }
  return header.replace(new RegExp("(;\\s*" + property + "=)([^;]+)", 'i'), function(match, prefix, previousValue) {
    var newValue;
    if (previousValue in config) {
      newValue = config[previousValue];
    } else if ('*' in config) {
      newValue = config['*'];
    } else {
      //no match, return previous value
      return match;
    }
    if (newValue) {
      //replace value
      return prefix + newValue;
    } else {
      //remove value
      return '';
    }
  });
};

/**
 * Check the host and see if it potentially has a port in it (keep it simple)
 *
 * @returns {Boolean} Whether we have one or not
 *
 * @api private
 */
function hasPort(host) {
  return !!~host.indexOf(':');
}}(common$3));

var url$2    = require$$0__default$6,
    common$2 = common$3;


var redirectRegex = /^201|30(1|2|7|8)$/;

/*!
 * Array of passes.
 *
 * A `pass` is just a function that is executed on `req, res, options`
 * so that you can easily add new checks while still keeping the base
 * flexible.
 */

var webOutgoing = { // <--

  /**
   * If is a HTTP 1.0 request, remove chunk headers
   *
   * @param {ClientRequest} Req Request object
   * @param {IncomingMessage} Res Response object
   * @param {proxyResponse} Res Response object from the proxy request
   *
   * @api private
   */
  removeChunked: function removeChunked(req, res, proxyRes) {
    if (req.httpVersion === '1.0') {
      delete proxyRes.headers['transfer-encoding'];
    }
  },

  /**
   * If is a HTTP 1.0 request, set the correct connection header
   * or if connection header not present, then use `keep-alive`
   *
   * @param {ClientRequest} Req Request object
   * @param {IncomingMessage} Res Response object
   * @param {proxyResponse} Res Response object from the proxy request
   *
   * @api private
   */
  setConnection: function setConnection(req, res, proxyRes) {
    if (req.httpVersion === '1.0') {
      proxyRes.headers.connection = req.headers.connection || 'close';
    } else if (req.httpVersion !== '2.0' && !proxyRes.headers.connection) {
      proxyRes.headers.connection = req.headers.connection || 'keep-alive';
    }
  },

  setRedirectHostRewrite: function setRedirectHostRewrite(req, res, proxyRes, options) {
    if ((options.hostRewrite || options.autoRewrite || options.protocolRewrite)
        && proxyRes.headers['location']
        && redirectRegex.test(proxyRes.statusCode)) {
      var target = url$2.parse(options.target);
      var u = url$2.parse(proxyRes.headers['location']);

      // make sure the redirected host matches the target host before rewriting
      if (target.host != u.host) {
        return;
      }

      if (options.hostRewrite) {
        u.host = options.hostRewrite;
      } else if (options.autoRewrite) {
        u.host = req.headers['host'];
      }
      if (options.protocolRewrite) {
        u.protocol = options.protocolRewrite;
      }

      proxyRes.headers['location'] = u.format();
    }
  },
  /**
   * Copy headers from proxyResponse to response
   * set each header in response object.
   *
   * @param {ClientRequest} Req Request object
   * @param {IncomingMessage} Res Response object
   * @param {proxyResponse} Res Response object from the proxy request
   * @param {Object} Options options.cookieDomainRewrite: Config to rewrite cookie domain
   *
   * @api private
   */
  writeHeaders: function writeHeaders(req, res, proxyRes, options) {
    var rewriteCookieDomainConfig = options.cookieDomainRewrite,
        rewriteCookiePathConfig = options.cookiePathRewrite,
        preserveHeaderKeyCase = options.preserveHeaderKeyCase,
        rawHeaderKeyMap,
        setHeader = function(key, header) {
          if (header == undefined) return;
          if (rewriteCookieDomainConfig && key.toLowerCase() === 'set-cookie') {
            header = common$2.rewriteCookieProperty(header, rewriteCookieDomainConfig, 'domain');
          }
          if (rewriteCookiePathConfig && key.toLowerCase() === 'set-cookie') {
            header = common$2.rewriteCookieProperty(header, rewriteCookiePathConfig, 'path');
          }
          res.setHeader(String(key).trim(), header);
        };

    if (typeof rewriteCookieDomainConfig === 'string') { //also test for ''
      rewriteCookieDomainConfig = { '*': rewriteCookieDomainConfig };
    }

    if (typeof rewriteCookiePathConfig === 'string') { //also test for ''
      rewriteCookiePathConfig = { '*': rewriteCookiePathConfig };
    }

    // message.rawHeaders is added in: v0.11.6
    // https://nodejs.org/api/http.html#http_message_rawheaders
    if (preserveHeaderKeyCase && proxyRes.rawHeaders != undefined) {
      rawHeaderKeyMap = {};
      for (var i = 0; i < proxyRes.rawHeaders.length; i += 2) {
        var key = proxyRes.rawHeaders[i];
        rawHeaderKeyMap[key.toLowerCase()] = key;
      }
    }

    Object.keys(proxyRes.headers).forEach(function(key) {
      var header = proxyRes.headers[key];
      if (preserveHeaderKeyCase && rawHeaderKeyMap) {
        key = rawHeaderKeyMap[key] || key;
      }
      setHeader(key, header);
    });
  },

  /**
   * Set the statusCode from the proxyResponse
   *
   * @param {ClientRequest} Req Request object
   * @param {IncomingMessage} Res Response object
   * @param {proxyResponse} Res Response object from the proxy request
   *
   * @api private
   */
  writeStatusCode: function writeStatusCode(req, res, proxyRes) {
    // From Node.js docs: response.writeHead(statusCode[, statusMessage][, headers])
    if(proxyRes.statusMessage) {
      res.statusCode = proxyRes.statusCode;
      res.statusMessage = proxyRes.statusMessage;
    } else {
      res.statusCode = proxyRes.statusCode;
    }
  }

};

var followRedirects$1 = {exports: {}};

var debug$7;

var debug_1 = function () {
  if (!debug$7) {
    try {
      /* eslint global-require: off */
      debug$7 = require("debug")("follow-redirects");
    }
    catch (error) { /* */ }
    if (typeof debug$7 !== "function") {
      debug$7 = function () { /* */ };
    }
  }
  debug$7.apply(null, arguments);
};

var url$1 = require$$0__default$6;
var URL$1 = url$1.URL;
var http$1 = require$$1__default$1;
var https$1 = require$$1__default$3;
var Writable = require$$0__default$4.Writable;
var assert$1 = require$$5__default;
var debug$6 = debug_1;

// Create handlers that pass events from native requests
var events = ["abort", "aborted", "connect", "error", "socket", "timeout"];
var eventHandlers = Object.create(null);
events.forEach(function (event) {
  eventHandlers[event] = function (arg1, arg2, arg3) {
    this._redirectable.emit(event, arg1, arg2, arg3);
  };
});

// Error types with codes
var RedirectionError = createErrorType(
  "ERR_FR_REDIRECTION_FAILURE",
  ""
);
var TooManyRedirectsError = createErrorType(
  "ERR_FR_TOO_MANY_REDIRECTS",
  "Maximum number of redirects exceeded"
);
var MaxBodyLengthExceededError = createErrorType(
  "ERR_FR_MAX_BODY_LENGTH_EXCEEDED",
  "Request body larger than maxBodyLength limit"
);
var WriteAfterEndError = createErrorType(
  "ERR_STREAM_WRITE_AFTER_END",
  "write after end"
);

// An HTTP(S) request that can be redirected
function RedirectableRequest(options, responseCallback) {
  // Initialize the request
  Writable.call(this);
  this._sanitizeOptions(options);
  this._options = options;
  this._ended = false;
  this._ending = false;
  this._redirectCount = 0;
  this._redirects = [];
  this._requestBodyLength = 0;
  this._requestBodyBuffers = [];

  // Attach a callback if passed
  if (responseCallback) {
    this.on("response", responseCallback);
  }

  // React to responses of native requests
  var self = this;
  this._onNativeResponse = function (response) {
    self._processResponse(response);
  };

  // Perform the first request
  this._performRequest();
}
RedirectableRequest.prototype = Object.create(Writable.prototype);

RedirectableRequest.prototype.abort = function () {
  abortRequest(this._currentRequest);
  this.emit("abort");
};

// Writes buffered data to the current native request
RedirectableRequest.prototype.write = function (data, encoding, callback) {
  // Writing is not allowed if end has been called
  if (this._ending) {
    throw new WriteAfterEndError();
  }

  // Validate input and shift parameters if necessary
  if (!(typeof data === "string" || typeof data === "object" && ("length" in data))) {
    throw new TypeError("data should be a string, Buffer or Uint8Array");
  }
  if (typeof encoding === "function") {
    callback = encoding;
    encoding = null;
  }

  // Ignore empty buffers, since writing them doesn't invoke the callback
  // https://github.com/nodejs/node/issues/22066
  if (data.length === 0) {
    if (callback) {
      callback();
    }
    return;
  }
  // Only write when we don't exceed the maximum body length
  if (this._requestBodyLength + data.length <= this._options.maxBodyLength) {
    this._requestBodyLength += data.length;
    this._requestBodyBuffers.push({ data: data, encoding: encoding });
    this._currentRequest.write(data, encoding, callback);
  }
  // Error when we exceed the maximum body length
  else {
    this.emit("error", new MaxBodyLengthExceededError());
    this.abort();
  }
};

// Ends the current native request
RedirectableRequest.prototype.end = function (data, encoding, callback) {
  // Shift parameters if necessary
  if (typeof data === "function") {
    callback = data;
    data = encoding = null;
  }
  else if (typeof encoding === "function") {
    callback = encoding;
    encoding = null;
  }

  // Write data if needed and end
  if (!data) {
    this._ended = this._ending = true;
    this._currentRequest.end(null, null, callback);
  }
  else {
    var self = this;
    var currentRequest = this._currentRequest;
    this.write(data, encoding, function () {
      self._ended = true;
      currentRequest.end(null, null, callback);
    });
    this._ending = true;
  }
};

// Sets a header value on the current native request
RedirectableRequest.prototype.setHeader = function (name, value) {
  this._options.headers[name] = value;
  this._currentRequest.setHeader(name, value);
};

// Clears a header value on the current native request
RedirectableRequest.prototype.removeHeader = function (name) {
  delete this._options.headers[name];
  this._currentRequest.removeHeader(name);
};

// Global timeout for all underlying requests
RedirectableRequest.prototype.setTimeout = function (msecs, callback) {
  var self = this;

  // Destroys the socket on timeout
  function destroyOnTimeout(socket) {
    socket.setTimeout(msecs);
    socket.removeListener("timeout", socket.destroy);
    socket.addListener("timeout", socket.destroy);
  }

  // Sets up a timer to trigger a timeout event
  function startTimer(socket) {
    if (self._timeout) {
      clearTimeout(self._timeout);
    }
    self._timeout = setTimeout(function () {
      self.emit("timeout");
      clearTimer();
    }, msecs);
    destroyOnTimeout(socket);
  }

  // Stops a timeout from triggering
  function clearTimer() {
    if (self._timeout) {
      clearTimeout(self._timeout);
      self._timeout = null;
    }
    if (callback) {
      self.removeListener("timeout", callback);
    }
    if (!self.socket) {
      self._currentRequest.removeListener("socket", startTimer);
    }
  }

  // Attach callback if passed
  if (callback) {
    this.on("timeout", callback);
  }

  // Start the timer if or when the socket is opened
  if (this.socket) {
    startTimer(this.socket);
  }
  else {
    this._currentRequest.once("socket", startTimer);
  }

  // Clean up on events
  this.on("socket", destroyOnTimeout);
  this.once("response", clearTimer);
  this.once("error", clearTimer);

  return this;
};

// Proxy all other public ClientRequest methods
[
  "flushHeaders", "getHeader",
  "setNoDelay", "setSocketKeepAlive",
].forEach(function (method) {
  RedirectableRequest.prototype[method] = function (a, b) {
    return this._currentRequest[method](a, b);
  };
});

// Proxy all public ClientRequest properties
["aborted", "connection", "socket"].forEach(function (property) {
  Object.defineProperty(RedirectableRequest.prototype, property, {
    get: function () { return this._currentRequest[property]; },
  });
});

RedirectableRequest.prototype._sanitizeOptions = function (options) {
  // Ensure headers are always present
  if (!options.headers) {
    options.headers = {};
  }

  // Since http.request treats host as an alias of hostname,
  // but the url module interprets host as hostname plus port,
  // eliminate the host property to avoid confusion.
  if (options.host) {
    // Use hostname if set, because it has precedence
    if (!options.hostname) {
      options.hostname = options.host;
    }
    delete options.host;
  }

  // Complete the URL object when necessary
  if (!options.pathname && options.path) {
    var searchPos = options.path.indexOf("?");
    if (searchPos < 0) {
      options.pathname = options.path;
    }
    else {
      options.pathname = options.path.substring(0, searchPos);
      options.search = options.path.substring(searchPos);
    }
  }
};


// Executes the next native request (initial or redirect)
RedirectableRequest.prototype._performRequest = function () {
  // Load the native protocol
  var protocol = this._options.protocol;
  var nativeProtocol = this._options.nativeProtocols[protocol];
  if (!nativeProtocol) {
    this.emit("error", new TypeError("Unsupported protocol " + protocol));
    return;
  }

  // If specified, use the agent corresponding to the protocol
  // (HTTP and HTTPS use different types of agents)
  if (this._options.agents) {
    var scheme = protocol.substr(0, protocol.length - 1);
    this._options.agent = this._options.agents[scheme];
  }

  // Create the native request
  var request = this._currentRequest =
        nativeProtocol.request(this._options, this._onNativeResponse);
  this._currentUrl = url$1.format(this._options);

  // Set up event handlers
  request._redirectable = this;
  for (var e = 0; e < events.length; e++) {
    request.on(events[e], eventHandlers[events[e]]);
  }

  // End a redirected request
  // (The first request must be ended explicitly with RedirectableRequest#end)
  if (this._isRedirect) {
    // Write the request entity and end.
    var i = 0;
    var self = this;
    var buffers = this._requestBodyBuffers;
    (function writeNext(error) {
      // Only write if this request has not been redirected yet
      /* istanbul ignore else */
      if (request === self._currentRequest) {
        // Report any write errors
        /* istanbul ignore if */
        if (error) {
          self.emit("error", error);
        }
        // Write the next buffer if there are still left
        else if (i < buffers.length) {
          var buffer = buffers[i++];
          /* istanbul ignore else */
          if (!request.finished) {
            request.write(buffer.data, buffer.encoding, writeNext);
          }
        }
        // End the request if `end` has been called on us
        else if (self._ended) {
          request.end();
        }
      }
    }());
  }
};

// Processes a response from the current native request
RedirectableRequest.prototype._processResponse = function (response) {
  // Store the redirected response
  var statusCode = response.statusCode;
  if (this._options.trackRedirects) {
    this._redirects.push({
      url: this._currentUrl,
      headers: response.headers,
      statusCode: statusCode,
    });
  }

  // RFC7231§6.4: The 3xx (Redirection) class of status code indicates
  // that further action needs to be taken by the user agent in order to
  // fulfill the request. If a Location header field is provided,
  // the user agent MAY automatically redirect its request to the URI
  // referenced by the Location field value,
  // even if the specific status code is not understood.
  var location = response.headers.location;
  if (location && this._options.followRedirects !== false &&
      statusCode >= 300 && statusCode < 400) {
    // Abort the current request
    abortRequest(this._currentRequest);
    // Discard the remainder of the response to avoid waiting for data
    response.destroy();

    // RFC7231§6.4: A client SHOULD detect and intervene
    // in cyclical redirections (i.e., "infinite" redirection loops).
    if (++this._redirectCount > this._options.maxRedirects) {
      this.emit("error", new TooManyRedirectsError());
      return;
    }

    // RFC7231§6.4: Automatic redirection needs to done with
    // care for methods not known to be safe, […]
    // RFC7231§6.4.2–3: For historical reasons, a user agent MAY change
    // the request method from POST to GET for the subsequent request.
    if ((statusCode === 301 || statusCode === 302) && this._options.method === "POST" ||
        // RFC7231§6.4.4: The 303 (See Other) status code indicates that
        // the server is redirecting the user agent to a different resource […]
        // A user agent can perform a retrieval request targeting that URI
        // (a GET or HEAD request if using HTTP) […]
        (statusCode === 303) && !/^(?:GET|HEAD)$/.test(this._options.method)) {
      this._options.method = "GET";
      // Drop a possible entity and headers related to it
      this._requestBodyBuffers = [];
      removeMatchingHeaders(/^content-/i, this._options.headers);
    }

    // Drop the Host header, as the redirect might lead to a different host
    var previousHostName = removeMatchingHeaders(/^host$/i, this._options.headers) ||
      url$1.parse(this._currentUrl).hostname;

    // Create the redirected request
    var redirectUrl = url$1.resolve(this._currentUrl, location);
    debug$6("redirecting to", redirectUrl);
    this._isRedirect = true;
    var redirectUrlParts = url$1.parse(redirectUrl);
    Object.assign(this._options, redirectUrlParts);

    // Drop the Authorization header if redirecting to another host
    if (redirectUrlParts.hostname !== previousHostName) {
      removeMatchingHeaders(/^authorization$/i, this._options.headers);
    }

    // Evaluate the beforeRedirect callback
    if (typeof this._options.beforeRedirect === "function") {
      var responseDetails = { headers: response.headers };
      try {
        this._options.beforeRedirect.call(null, this._options, responseDetails);
      }
      catch (err) {
        this.emit("error", err);
        return;
      }
      this._sanitizeOptions(this._options);
    }

    // Perform the redirected request
    try {
      this._performRequest();
    }
    catch (cause) {
      var error = new RedirectionError("Redirected request failed: " + cause.message);
      error.cause = cause;
      this.emit("error", error);
    }
  }
  else {
    // The response is not a redirect; return it as-is
    response.responseUrl = this._currentUrl;
    response.redirects = this._redirects;
    this.emit("response", response);

    // Clean up
    this._requestBodyBuffers = [];
  }
};

// Wraps the key/value object of protocols with redirect functionality
function wrap(protocols) {
  // Default settings
  var exports = {
    maxRedirects: 21,
    maxBodyLength: 10 * 1024 * 1024,
  };

  // Wrap each protocol
  var nativeProtocols = {};
  Object.keys(protocols).forEach(function (scheme) {
    var protocol = scheme + ":";
    var nativeProtocol = nativeProtocols[protocol] = protocols[scheme];
    var wrappedProtocol = exports[scheme] = Object.create(nativeProtocol);

    // Executes a request, following redirects
    function request(input, options, callback) {
      // Parse parameters
      if (typeof input === "string") {
        var urlStr = input;
        try {
          input = urlToOptions(new URL$1(urlStr));
        }
        catch (err) {
          /* istanbul ignore next */
          input = url$1.parse(urlStr);
        }
      }
      else if (URL$1 && (input instanceof URL$1)) {
        input = urlToOptions(input);
      }
      else {
        callback = options;
        options = input;
        input = { protocol: protocol };
      }
      if (typeof options === "function") {
        callback = options;
        options = null;
      }

      // Set defaults
      options = Object.assign({
        maxRedirects: exports.maxRedirects,
        maxBodyLength: exports.maxBodyLength,
      }, input, options);
      options.nativeProtocols = nativeProtocols;

      assert$1.equal(options.protocol, protocol, "protocol mismatch");
      debug$6("options", options);
      return new RedirectableRequest(options, callback);
    }

    // Executes a GET request, following redirects
    function get(input, options, callback) {
      var wrappedRequest = wrappedProtocol.request(input, options, callback);
      wrappedRequest.end();
      return wrappedRequest;
    }

    // Expose the properties on the wrapped protocol
    Object.defineProperties(wrappedProtocol, {
      request: { value: request, configurable: true, enumerable: true, writable: true },
      get: { value: get, configurable: true, enumerable: true, writable: true },
    });
  });
  return exports;
}

/* istanbul ignore next */
function noop$2() { /* empty */ }

// from https://github.com/nodejs/node/blob/master/lib/internal/url.js
function urlToOptions(urlObject) {
  var options = {
    protocol: urlObject.protocol,
    hostname: urlObject.hostname.startsWith("[") ?
      /* istanbul ignore next */
      urlObject.hostname.slice(1, -1) :
      urlObject.hostname,
    hash: urlObject.hash,
    search: urlObject.search,
    pathname: urlObject.pathname,
    path: urlObject.pathname + urlObject.search,
    href: urlObject.href,
  };
  if (urlObject.port !== "") {
    options.port = Number(urlObject.port);
  }
  return options;
}

function removeMatchingHeaders(regex, headers) {
  var lastValue;
  for (var header in headers) {
    if (regex.test(header)) {
      lastValue = headers[header];
      delete headers[header];
    }
  }
  return lastValue;
}

function createErrorType(code, defaultMessage) {
  function CustomError(message) {
    Error.captureStackTrace(this, this.constructor);
    this.message = message || defaultMessage;
  }
  CustomError.prototype = new Error();
  CustomError.prototype.constructor = CustomError;
  CustomError.prototype.name = "Error [" + code + "]";
  CustomError.prototype.code = code;
  return CustomError;
}

function abortRequest(request) {
  for (var e = 0; e < events.length; e++) {
    request.removeListener(events[e], eventHandlers[events[e]]);
  }
  request.on("error", noop$2);
  request.abort();
}

// Exports
followRedirects$1.exports = wrap({ http: http$1, https: https$1 });
followRedirects$1.exports.wrap = wrap;

var httpNative   = require$$1__default$1,
    httpsNative  = require$$1__default$3,
    web_o  = webOutgoing,
    common$1 = common$3,
    followRedirects = followRedirects$1.exports;

web_o = Object.keys(web_o).map(function(pass) {
  return web_o[pass];
});

var nativeAgents = { http: httpNative, https: httpsNative };

/*!
 * Array of passes.
 *
 * A `pass` is just a function that is executed on `req, res, options`
 * so that you can easily add new checks while still keeping the base
 * flexible.
 */


var webIncoming = {

  /**
   * Sets `content-length` to '0' if request is of DELETE type.
   *
   * @param {ClientRequest} Req Request object
   * @param {IncomingMessage} Res Response object
   * @param {Object} Options Config object passed to the proxy
   *
   * @api private
   */

  deleteLength: function deleteLength(req, res, options) {
    if((req.method === 'DELETE' || req.method === 'OPTIONS')
       && !req.headers['content-length']) {
      req.headers['content-length'] = '0';
      delete req.headers['transfer-encoding'];
    }
  },

  /**
   * Sets timeout in request socket if it was specified in options.
   *
   * @param {ClientRequest} Req Request object
   * @param {IncomingMessage} Res Response object
   * @param {Object} Options Config object passed to the proxy
   *
   * @api private
   */

  timeout: function timeout(req, res, options) {
    if(options.timeout) {
      req.socket.setTimeout(options.timeout);
    }
  },

  /**
   * Sets `x-forwarded-*` headers if specified in config.
   *
   * @param {ClientRequest} Req Request object
   * @param {IncomingMessage} Res Response object
   * @param {Object} Options Config object passed to the proxy
   *
   * @api private
   */

  XHeaders: function XHeaders(req, res, options) {
    if(!options.xfwd) return;

    var encrypted = req.isSpdy || common$1.hasEncryptedConnection(req);
    var values = {
      for  : req.connection.remoteAddress || req.socket.remoteAddress,
      port : common$1.getPort(req),
      proto: encrypted ? 'https' : 'http'
    };

    ['for', 'port', 'proto'].forEach(function(header) {
      req.headers['x-forwarded-' + header] =
        (req.headers['x-forwarded-' + header] || '') +
        (req.headers['x-forwarded-' + header] ? ',' : '') +
        values[header];
    });

    req.headers['x-forwarded-host'] = req.headers['x-forwarded-host'] || req.headers['host'] || '';
  },

  /**
   * Does the actual proxying. If `forward` is enabled fires up
   * a ForwardStream, same happens for ProxyStream. The request
   * just dies otherwise.
   *
   * @param {ClientRequest} Req Request object
   * @param {IncomingMessage} Res Response object
   * @param {Object} Options Config object passed to the proxy
   *
   * @api private
   */

  stream: function stream(req, res, options, _, server, clb) {

    // And we begin!
    server.emit('start', req, res, options.target || options.forward);

    var agents = options.followRedirects ? followRedirects : nativeAgents;
    var http = agents.http;
    var https = agents.https;

    if(options.forward) {
      // If forward enable, so just pipe the request
      var forwardReq = (options.forward.protocol === 'https:' ? https : http).request(
        common$1.setupOutgoing(options.ssl || {}, options, req, 'forward')
      );

      // error handler (e.g. ECONNRESET, ECONNREFUSED)
      // Handle errors on incoming request as well as it makes sense to
      var forwardError = createErrorHandler(forwardReq, options.forward);
      req.on('error', forwardError);
      forwardReq.on('error', forwardError);

      (options.buffer || req).pipe(forwardReq);
      if(!options.target) { return res.end(); }
    }

    // Request initalization
    var proxyReq = (options.target.protocol === 'https:' ? https : http).request(
      common$1.setupOutgoing(options.ssl || {}, options, req)
    );

    // Enable developers to modify the proxyReq before headers are sent
    proxyReq.on('socket', function(socket) {
      if(server && !proxyReq.getHeader('expect')) {
        server.emit('proxyReq', proxyReq, req, res, options);
      }
    });

    // allow outgoing socket to timeout so that we could
    // show an error page at the initial request
    if(options.proxyTimeout) {
      proxyReq.setTimeout(options.proxyTimeout, function() {
         proxyReq.abort();
      });
    }

    // Ensure we abort proxy if request is aborted
    req.on('aborted', function () {
      proxyReq.abort();
    });

    // handle errors in proxy and incoming request, just like for forward proxy
    var proxyError = createErrorHandler(proxyReq, options.target);
    req.on('error', proxyError);
    proxyReq.on('error', proxyError);

    function createErrorHandler(proxyReq, url) {
      return function proxyError(err) {
        if (req.socket.destroyed && err.code === 'ECONNRESET') {
          server.emit('econnreset', err, req, res, url);
          return proxyReq.abort();
        }

        if (clb) {
          clb(err, req, res, url);
        } else {
          server.emit('error', err, req, res, url);
        }
      }
    }

    (options.buffer || req).pipe(proxyReq);

    proxyReq.on('response', function(proxyRes) {
      if(server) { server.emit('proxyRes', proxyRes, req, res); }

      if(!res.headersSent && !options.selfHandleResponse) {
        for(var i=0; i < web_o.length; i++) {
          if(web_o[i](req, res, proxyRes, options)) { break; }
        }
      }

      if (!res.finished) {
        // Allow us to listen when the proxy has completed
        proxyRes.on('end', function () {
          if (server) server.emit('end', req, res, proxyRes);
        });
        // We pipe to the response unless its expected to be handled by the user
        if (!options.selfHandleResponse) proxyRes.pipe(res);
      } else {
        if (server) server.emit('end', req, res, proxyRes);
      }
    });
  }

};

var http   = require$$1__default$1,
    https  = require$$1__default$3,
    common = common$3;

/*!
 * Array of passes.
 *
 * A `pass` is just a function that is executed on `req, socket, options`
 * so that you can easily add new checks while still keeping the base
 * flexible.
 */

/*
 * Websockets Passes
 *
 */


var wsIncoming = {
  /**
   * WebSocket requests must have the `GET` method and
   * the `upgrade:websocket` header
   *
   * @param {ClientRequest} Req Request object
   * @param {Socket} Websocket
   *
   * @api private
   */

  checkMethodAndHeader : function checkMethodAndHeader(req, socket) {
    if (req.method !== 'GET' || !req.headers.upgrade) {
      socket.destroy();
      return true;
    }

    if (req.headers.upgrade.toLowerCase() !== 'websocket') {
      socket.destroy();
      return true;
    }
  },

  /**
   * Sets `x-forwarded-*` headers if specified in config.
   *
   * @param {ClientRequest} Req Request object
   * @param {Socket} Websocket
   * @param {Object} Options Config object passed to the proxy
   *
   * @api private
   */

  XHeaders : function XHeaders(req, socket, options) {
    if(!options.xfwd) return;

    var values = {
      for  : req.connection.remoteAddress || req.socket.remoteAddress,
      port : common.getPort(req),
      proto: common.hasEncryptedConnection(req) ? 'wss' : 'ws'
    };

    ['for', 'port', 'proto'].forEach(function(header) {
      req.headers['x-forwarded-' + header] =
        (req.headers['x-forwarded-' + header] || '') +
        (req.headers['x-forwarded-' + header] ? ',' : '') +
        values[header];
    });
  },

  /**
   * Does the actual proxying. Make the request and upgrade it
   * send the Switching Protocols request and pipe the sockets.
   *
   * @param {ClientRequest} Req Request object
   * @param {Socket} Websocket
   * @param {Object} Options Config object passed to the proxy
   *
   * @api private
   */
  stream : function stream(req, socket, options, head, server, clb) {

    var createHttpHeader = function(line, headers) {
      return Object.keys(headers).reduce(function (head, key) {
        var value = headers[key];

        if (!Array.isArray(value)) {
          head.push(key + ': ' + value);
          return head;
        }

        for (var i = 0; i < value.length; i++) {
          head.push(key + ': ' + value[i]);
        }
        return head;
      }, [line])
      .join('\r\n') + '\r\n\r\n';
    };

    common.setupSocket(socket);

    if (head && head.length) socket.unshift(head);


    var proxyReq = (common.isSSL.test(options.target.protocol) ? https : http).request(
      common.setupOutgoing(options.ssl || {}, options, req)
    );

    // Enable developers to modify the proxyReq before headers are sent
    if (server) { server.emit('proxyReqWs', proxyReq, req, socket, options, head); }

    // Error Handler
    proxyReq.on('error', onOutgoingError);
    proxyReq.on('response', function (res) {
      // if upgrade event isn't going to happen, close the socket
      if (!res.upgrade) {
        socket.write(createHttpHeader('HTTP/' + res.httpVersion + ' ' + res.statusCode + ' ' + res.statusMessage, res.headers));
        res.pipe(socket);
      }
    });

    proxyReq.on('upgrade', function(proxyRes, proxySocket, proxyHead) {
      proxySocket.on('error', onOutgoingError);

      // Allow us to listen when the websocket has completed
      proxySocket.on('end', function () {
        server.emit('close', proxyRes, proxySocket, proxyHead);
      });

      // The pipe below will end proxySocket if socket closes cleanly, but not
      // if it errors (eg, vanishes from the net and starts returning
      // EHOSTUNREACH). We need to do that explicitly.
      socket.on('error', function () {
        proxySocket.end();
      });

      common.setupSocket(proxySocket);

      if (proxyHead && proxyHead.length) proxySocket.unshift(proxyHead);

      //
      // Remark: Handle writing the headers to the socket when switching protocols
      // Also handles when a header is an array
      //
      socket.write(createHttpHeader('HTTP/1.1 101 Switching Protocols', proxyRes.headers));

      proxySocket.pipe(socket).pipe(proxySocket);

      server.emit('open', proxySocket);
      server.emit('proxySocket', proxySocket);  //DEPRECATED.
    });

    return proxyReq.end(); // XXX: CHECK IF THIS IS THIS CORRECT

    function onOutgoingError(err) {
      if (clb) {
        clb(err, req, socket);
      } else {
        server.emit('error', err, req, socket);
      }
      socket.end();
    }
  }
};

(function (module) {
var httpProxy = module.exports,
    extend    = require$$0__default$2._extend,
    parse_url = require$$0__default$6.parse,
    EE3       = eventemitter3.exports,
    http      = require$$1__default$1,
    https     = require$$1__default$3,
    web       = webIncoming,
    ws        = wsIncoming;

httpProxy.Server = ProxyServer;

/**
 * Returns a function that creates the loader for
 * either `ws` or `web`'s  passes.
 *
 * Examples:
 *
 *    httpProxy.createRightProxy('ws')
 *    // => [Function]
 *
 * @param {String} Type Either 'ws' or 'web'
 * 
 * @return {Function} Loader Function that when called returns an iterator for the right passes
 *
 * @api private
 */

function createRightProxy(type) {

  return function(options) {
    return function(req, res /*, [head], [opts] */) {
      var passes = (type === 'ws') ? this.wsPasses : this.webPasses,
          args = [].slice.call(arguments),
          cntr = args.length - 1,
          head, cbl;

      /* optional args parse begin */
      if(typeof args[cntr] === 'function') {
        cbl = args[cntr];

        cntr--;
      }

      var requestOptions = options;
      if(
        !(args[cntr] instanceof Buffer) &&
        args[cntr] !== res
      ) {
        //Copy global options
        requestOptions = extend({}, options);
        //Overwrite with request options
        extend(requestOptions, args[cntr]);

        cntr--;
      }

      if(args[cntr] instanceof Buffer) {
        head = args[cntr];
      }

      /* optional args parse end */

      ['target', 'forward'].forEach(function(e) {
        if (typeof requestOptions[e] === 'string')
          requestOptions[e] = parse_url(requestOptions[e]);
      });

      if (!requestOptions.target && !requestOptions.forward) {
        return this.emit('error', new Error('Must provide a proper URL as target'));
      }

      for(var i=0; i < passes.length; i++) {
        /**
         * Call of passes functions
         * pass(req, res, options, head)
         *
         * In WebSockets case the `res` variable
         * refer to the connection socket
         * pass(req, socket, options, head)
         */
        if(passes[i](req, res, requestOptions, head, this, cbl)) { // passes can return a truthy value to halt the loop
          break;
        }
      }
    };
  };
}
httpProxy.createRightProxy = createRightProxy;

function ProxyServer(options) {
  EE3.call(this);

  options = options || {};
  options.prependPath = options.prependPath === false ? false : true;

  this.web = this.proxyRequest           = createRightProxy('web')(options);
  this.ws  = this.proxyWebsocketRequest  = createRightProxy('ws')(options);
  this.options = options;

  this.webPasses = Object.keys(web).map(function(pass) {
    return web[pass];
  });

  this.wsPasses = Object.keys(ws).map(function(pass) {
    return ws[pass];
  });

  this.on('error', this.onError, this);

}

require$$0__default$2.inherits(ProxyServer, EE3);

ProxyServer.prototype.onError = function (err) {
  //
  // Remark: Replicate node core behavior using EE3
  // so we force people to handle their own errors
  //
  if(this.listeners('error').length === 1) {
    throw err;
  }
};

ProxyServer.prototype.listen = function(port, hostname) {
  var self    = this,
      closure = function(req, res) { self.web(req, res); };

  this._server  = this.options.ssl ?
    https.createServer(this.options.ssl, closure) :
    http.createServer(closure);

  if(this.options.ws) {
    this._server.on('upgrade', function(req, socket, head) { self.ws(req, socket, head); });
  }

  this._server.listen(port, hostname);

  return this;
};

ProxyServer.prototype.close = function(callback) {
  var self = this;
  if (this._server) {
    this._server.close(done);
  }

  // Wrap callback to nullify server after all open connections are closed.
  function done() {
    self._server = null;
    if (callback) {
      callback.apply(null, arguments);
    }
  }};

ProxyServer.prototype.before = function(type, passName, callback) {
  if (type !== 'ws' && type !== 'web') {
    throw new Error('type must be `web` or `ws`');
  }
  var passes = (type === 'ws') ? this.wsPasses : this.webPasses,
      i = false;

  passes.forEach(function(v, idx) {
    if(v.name === passName) i = idx;
  });

  if(i === false) throw new Error('No such pass');

  passes.splice(i, 0, callback);
};
ProxyServer.prototype.after = function(type, passName, callback) {
  if (type !== 'ws' && type !== 'web') {
    throw new Error('type must be `web` or `ws`');
  }
  var passes = (type === 'ws') ? this.wsPasses : this.webPasses,
      i = false;

  passes.forEach(function(v, idx) {
    if(v.name === passName) i = idx;
  });

  if(i === false) throw new Error('No such pass');

  passes.splice(i++, 0, callback);
};
}(httpProxy$2));

// Use explicit /index.js to help browserify negociation in require '/lib/http-proxy' (!)
var ProxyServer = httpProxy$2.exports.Server;


/**
 * Creates the proxy server.
 *
 * Examples:
 *
 *    httpProxy.createProxyServer({ .. }, 8000)
 *    // => '{ web: [Function], ws: [Function] ... }'
 *
 * @param {Object} Options Config object passed to the proxy
 *
 * @return {Object} Proxy Proxy object with handlers for `ws` and `web` requests
 *
 * @api public
 */


function createProxyServer(options) {
  /*
   *  `options` is needed and it must have the following layout:
   *
   *  {
   *    target : <url string to be parsed with the url module>
   *    forward: <url string to be parsed with the url module>
   *    agent  : <object to be passed to http(s).request>
   *    ssl    : <object to be passed to https.createServer()>
   *    ws     : <true/false, if you want to proxy websockets>
   *    xfwd   : <true/false, adds x-forward headers>
   *    secure : <true/false, verify SSL certificate>
   *    toProxy: <true/false, explicitly specify if we are proxying to another proxy>
   *    prependPath: <true/false, Default: true - specify whether you want to prepend the target's path to the proxy path>
   *    ignorePath: <true/false, Default: false - specify whether you want to ignore the proxy path of the incoming request>
   *    localAddress : <Local interface string to bind for outgoing connections>
   *    changeOrigin: <true/false, Default: false - changes the origin of the host header to the target URL>
   *    preserveHeaderKeyCase: <true/false, Default: false - specify whether you want to keep letter case of response header key >
   *    auth   : Basic authentication i.e. 'user:password' to compute an Authorization header.
   *    hostRewrite: rewrites the location hostname on (201/301/302/307/308) redirects, Default: null.
   *    autoRewrite: rewrites the location host/port on (201/301/302/307/308) redirects based on requested host/port. Default: false.
   *    protocolRewrite: rewrites the location protocol on (201/301/302/307/308) redirects to 'http' or 'https'. Default: null.
   *  }
   *
   *  NOTE: `options.ws` and `options.ssl` are optional.
   *    `options.target and `options.forward` cannot be
   *    both missing
   *  }
   */

  return new ProxyServer(options);
}


ProxyServer.createProxyServer = createProxyServer;
ProxyServer.createServer      = createProxyServer;
ProxyServer.createProxy       = createProxyServer;




/**
 * Export the proxy "Server" as the main export.
 */
var httpProxy$1 = ProxyServer;

/*!
 * Caron dimonio, con occhi di bragia
 * loro accennando, tutte le raccoglie;
 * batte col remo qualunque s’adagia 
 *
 * Charon the demon, with the eyes of glede,
 * Beckoning to them, collects them all together,
 * Beats with his oar whoever lags behind
 *          
 *          Dante - The Divine Comedy (Canto III)
 */

var httpProxy = httpProxy$1;

const debug$5 = createDebugger('vite:proxy');
function proxyMiddleware(httpServer, config) {
    const options = config.server.proxy;
    // lazy require only when proxy is used
    const proxies = {};
    Object.keys(options).forEach((context) => {
        let opts = options[context];
        if (typeof opts === 'string') {
            opts = { target: opts, changeOrigin: true };
        }
        const proxy = httpProxy.createProxyServer(opts);
        proxy.on('error', (err) => {
            config.logger.error(`${source.red(`http proxy error:`)}\n${err.stack}`, {
                timestamp: true,
                error: err
            });
        });
        if (opts.configure) {
            opts.configure(proxy, opts);
        }
        // clone before saving because http-proxy mutates the options
        proxies[context] = [proxy, { ...opts }];
    });
    if (httpServer) {
        httpServer.on('upgrade', (req, socket, head) => {
            var _a;
            const url = req.url;
            for (const context in proxies) {
                if (doesProxyContextMatchUrl(context, url)) {
                    const [proxy, opts] = proxies[context];
                    if ((opts.ws || ((_a = opts.target) === null || _a === void 0 ? void 0 : _a.toString().startsWith('ws:'))) &&
                        req.headers['sec-websocket-protocol'] !== HMR_HEADER) {
                        if (opts.rewrite) {
                            req.url = opts.rewrite(url);
                        }
                        debug$5(`${req.url} -> ws ${opts.target}`);
                        proxy.ws(req, socket, head);
                        return;
                    }
                }
            }
        });
    }
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return function viteProxyMiddleware(req, res, next) {
        const url = req.url;
        for (const context in proxies) {
            if (doesProxyContextMatchUrl(context, url)) {
                const [proxy, opts] = proxies[context];
                const options = {};
                if (opts.bypass) {
                    const bypassResult = opts.bypass(req, res, opts);
                    if (typeof bypassResult === 'string') {
                        req.url = bypassResult;
                        debug$5(`bypass: ${req.url} -> ${bypassResult}`);
                        return next();
                    }
                    else if (isObject$3(bypassResult)) {
                        Object.assign(options, bypassResult);
                        debug$5(`bypass: ${req.url} use modified options: %O`, options);
                        return next();
                    }
                    else if (bypassResult === false) {
                        debug$5(`bypass: ${req.url} -> 404`);
                        return res.end(404);
                    }
                }
                debug$5(`${req.url} -> ${opts.target || opts.forward}`);
                if (opts.rewrite) {
                    req.url = opts.rewrite(req.url);
                }
                proxy.web(req, res, options);
                return;
            }
        }
        next();
    };
}
function doesProxyContextMatchUrl(context, url) {
    return ((context.startsWith('^') && new RegExp(context).test(url)) ||
        url.startsWith(context));
}

var lib = {exports: {}};

(function (module, exports) {

var url = require$$0__default$6;

module.exports = function historyApiFallback(options) {
  options = options || {};
  var logger = getLogger(options);

  return function(req, res, next) {
    var headers = req.headers;
    if (req.method !== 'GET') {
      logger(
        'Not rewriting',
        req.method,
        req.url,
        'because the method is not GET.'
      );
      return next();
    } else if (!headers || typeof headers.accept !== 'string') {
      logger(
        'Not rewriting',
        req.method,
        req.url,
        'because the client did not send an HTTP accept header.'
      );
      return next();
    } else if (headers.accept.indexOf('application/json') === 0) {
      logger(
        'Not rewriting',
        req.method,
        req.url,
        'because the client prefers JSON.'
      );
      return next();
    } else if (!acceptsHtml(headers.accept, options)) {
      logger(
        'Not rewriting',
        req.method,
        req.url,
        'because the client does not accept HTML.'
      );
      return next();
    }

    var parsedUrl = url.parse(req.url);
    var rewriteTarget;
    options.rewrites = options.rewrites || [];
    for (var i = 0; i < options.rewrites.length; i++) {
      var rewrite = options.rewrites[i];
      var match = parsedUrl.pathname.match(rewrite.from);
      if (match !== null) {
        rewriteTarget = evaluateRewriteRule(parsedUrl, match, rewrite.to, req);

        if(rewriteTarget.charAt(0) !== '/') {
          logger(
            'We recommend using an absolute path for the rewrite target.',
            'Received a non-absolute rewrite target',
            rewriteTarget,
            'for URL',
            req.url
          );
        }

        logger('Rewriting', req.method, req.url, 'to', rewriteTarget);
        req.url = rewriteTarget;
        return next();
      }
    }

    var pathname = parsedUrl.pathname;
    if (pathname.lastIndexOf('.') > pathname.lastIndexOf('/') &&
        options.disableDotRule !== true) {
      logger(
        'Not rewriting',
        req.method,
        req.url,
        'because the path includes a dot (.) character.'
      );
      return next();
    }

    rewriteTarget = options.index || '/index.html';
    logger('Rewriting', req.method, req.url, 'to', rewriteTarget);
    req.url = rewriteTarget;
    next();
  };
};

function evaluateRewriteRule(parsedUrl, match, rule, req) {
  if (typeof rule === 'string') {
    return rule;
  } else if (typeof rule !== 'function') {
    throw new Error('Rewrite rule can only be of type string or function.');
  }

  return rule({
    parsedUrl: parsedUrl,
    match: match,
    request: req
  });
}

function acceptsHtml(header, options) {
  options.htmlAcceptHeaders = options.htmlAcceptHeaders || ['text/html', '*/*'];
  for (var i = 0; i < options.htmlAcceptHeaders.length; i++) {
    if (header.indexOf(options.htmlAcceptHeaders[i]) !== -1) {
      return true;
    }
  }
  return false;
}

function getLogger(options) {
  if (options && options.logger) {
    return options.logger;
  } else if (options && options.verbose) {
    return console.log.bind(console);
  }
  return function(){};
}
}(lib));

var history = lib.exports;

function spaFallbackMiddleware(root) {
    const historySpaFallbackMiddleware = history({
        logger: createDebugger('vite:spa-fallback'),
        // support /dir/ without explicit index.html
        rewrites: [
            {
                from: /\/$/,
                to({ parsedUrl }) {
                    const rewritten = parsedUrl.pathname + 'index.html';
                    if (fs__default.existsSync(path__default.join(root, rewritten))) {
                        return rewritten;
                    }
                    else {
                        return `/index.html`;
                    }
                }
            }
        ]
    });
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return function viteSpaFallbackMiddleware(req, res, next) {
        return historySpaFallbackMiddleware(req, res, next);
    };
}

/*!
 * etag
 * Copyright(c) 2014-2016 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

var etag_1 = etag;

/**
 * Module dependencies.
 * @private
 */

var crypto = require$$1__default$2;
var Stats = fs__default.Stats;

/**
 * Module variables.
 * @private
 */

var toString = Object.prototype.toString;

/**
 * Generate an entity tag.
 *
 * @param {Buffer|string} entity
 * @return {string}
 * @private
 */

function entitytag (entity) {
  if (entity.length === 0) {
    // fast-path empty
    return '"0-2jmj7l5rSw0yVb/vlWAYkK/YBwk"'
  }

  // compute hash of entity
  var hash = crypto
    .createHash('sha1')
    .update(entity, 'utf8')
    .digest('base64')
    .substring(0, 27);

  // compute length of entity
  var len = typeof entity === 'string'
    ? Buffer.byteLength(entity, 'utf8')
    : entity.length;

  return '"' + len.toString(16) + '-' + hash + '"'
}

/**
 * Create a simple ETag.
 *
 * @param {string|Buffer|Stats} entity
 * @param {object} [options]
 * @param {boolean} [options.weak]
 * @return {String}
 * @public
 */

function etag (entity, options) {
  if (entity == null) {
    throw new TypeError('argument entity is required')
  }

  // support fs.Stats object
  var isStats = isstats(entity);
  var weak = options && typeof options.weak === 'boolean'
    ? options.weak
    : isStats;

  // validate argument
  if (!isStats && typeof entity !== 'string' && !Buffer.isBuffer(entity)) {
    throw new TypeError('argument entity must be string, Buffer, or fs.Stats')
  }

  // generate entity tag
  var tag = isStats
    ? stattag(entity)
    : entitytag(entity);

  return weak
    ? 'W/' + tag
    : tag
}

/**
 * Determine if object is a Stats object.
 *
 * @param {object} obj
 * @return {boolean}
 * @api private
 */

function isstats (obj) {
  // genuine fs.Stats
  if (typeof Stats === 'function' && obj instanceof Stats) {
    return true
  }

  // quack quack
  return obj && typeof obj === 'object' &&
    'ctime' in obj && toString.call(obj.ctime) === '[object Date]' &&
    'mtime' in obj && toString.call(obj.mtime) === '[object Date]' &&
    'ino' in obj && typeof obj.ino === 'number' &&
    'size' in obj && typeof obj.size === 'number'
}

/**
 * Generate a tag for a stat.
 *
 * @param {object} stat
 * @return {string}
 * @private
 */

function stattag (stat) {
  var mtime = stat.mtime.getTime().toString(16);
  var size = stat.size.toString(16);

  return '"' + size + '-' + mtime + '"'
}

const isDebug$4 = process.env.DEBUG;
const alias$1 = {
    js: 'application/javascript',
    css: 'text/css',
    html: 'text/html',
    json: 'application/json'
};
function send$1(req, res, content, type, etag = etag_1(content, { weak: true }), cacheControl = 'no-cache', map) {
    if (res.writableEnded) {
        return;
    }
    if (req.headers['if-none-match'] === etag) {
        res.statusCode = 304;
        return res.end();
    }
    res.setHeader('Content-Type', alias$1[type] || type);
    res.setHeader('Cache-Control', cacheControl);
    res.setHeader('Etag', etag);
    // inject source map reference
    if (map && map.mappings) {
        if (isDebug$4) {
            content += `\n/*${JSON.stringify(map, null, 2).replace(/\*\//g, '*\\/')}*/\n`;
        }
        content += genSourceMapString(map);
    }
    res.statusCode = 200;
    return res.end(content);
}
function genSourceMapString(map) {
    if (typeof map !== 'string') {
        map = JSON.stringify(map);
    }
    return `\n//# sourceMappingURL=data:application/json;base64,${Buffer.from(map).toString('base64')}`;
}

var convertSourceMap = {};

var safeBuffer = {exports: {}};

/* eslint-disable node/no-deprecated-api */

(function (module, exports) {
var buffer = require$$0__default$8;
var Buffer = buffer.Buffer;

// alternative to using Object.keys for old browsers
function copyProps (src, dst) {
  for (var key in src) {
    dst[key] = src[key];
  }
}
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
  module.exports = buffer;
} else {
  // Copy properties from require('buffer')
  copyProps(buffer, exports);
  exports.Buffer = SafeBuffer;
}

function SafeBuffer (arg, encodingOrOffset, length) {
  return Buffer(arg, encodingOrOffset, length)
}

// Copy static methods from Buffer
copyProps(Buffer, SafeBuffer);

SafeBuffer.from = function (arg, encodingOrOffset, length) {
  if (typeof arg === 'number') {
    throw new TypeError('Argument must not be a number')
  }
  return Buffer(arg, encodingOrOffset, length)
};

SafeBuffer.alloc = function (size, fill, encoding) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  var buf = Buffer(size);
  if (fill !== undefined) {
    if (typeof encoding === 'string') {
      buf.fill(fill, encoding);
    } else {
      buf.fill(fill);
    }
  } else {
    buf.fill(0);
  }
  return buf
};

SafeBuffer.allocUnsafe = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return Buffer(size)
};

SafeBuffer.allocUnsafeSlow = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return buffer.SlowBuffer(size)
};
}(safeBuffer, safeBuffer.exports));

(function (exports) {
var fs = fs__default;
var path = path__default;
var SafeBuffer = safeBuffer.exports;

Object.defineProperty(exports, 'commentRegex', {
  get: function getCommentRegex () {
    return /^\s*\/(?:\/|\*)[@#]\s+sourceMappingURL=data:(?:application|text)\/json;(?:charset[:=]\S+?;)?base64,(?:.*)$/mg;
  }
});

Object.defineProperty(exports, 'mapFileCommentRegex', {
  get: function getMapFileCommentRegex () {
    // Matches sourceMappingURL in either // or /* comment styles.
    return /(?:\/\/[@#][ \t]+sourceMappingURL=([^\s'"`]+?)[ \t]*$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^\*]+?)[ \t]*(?:\*\/){1}[ \t]*$)/mg;
  }
});


function decodeBase64(base64) {
  return (SafeBuffer.Buffer.from(base64, 'base64') || "").toString();
}

function stripComment(sm) {
  return sm.split(',').pop();
}

function readFromFileMap(sm, dir) {
  // NOTE: this will only work on the server since it attempts to read the map file

  var r = exports.mapFileCommentRegex.exec(sm);

  // for some odd reason //# .. captures in 1 and /* .. */ in 2
  var filename = r[1] || r[2];
  var filepath = path.resolve(dir, filename);

  try {
    return fs.readFileSync(filepath, 'utf8');
  } catch (e) {
    throw new Error('An error occurred while trying to read the map file at ' + filepath + '\n' + e);
  }
}

function Converter (sm, opts) {
  opts = opts || {};

  if (opts.isFileComment) sm = readFromFileMap(sm, opts.commentFileDir);
  if (opts.hasComment) sm = stripComment(sm);
  if (opts.isEncoded) sm = decodeBase64(sm);
  if (opts.isJSON || opts.isEncoded) sm = JSON.parse(sm);

  this.sourcemap = sm;
}

Converter.prototype.toJSON = function (space) {
  return JSON.stringify(this.sourcemap, null, space);
};

Converter.prototype.toBase64 = function () {
  var json = this.toJSON();
  return (SafeBuffer.Buffer.from(json, 'utf8') || "").toString('base64');
};

Converter.prototype.toComment = function (options) {
  var base64 = this.toBase64();
  var data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;
  return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
};

// returns copy instead of original
Converter.prototype.toObject = function () {
  return JSON.parse(this.toJSON());
};

Converter.prototype.addProperty = function (key, value) {
  if (this.sourcemap.hasOwnProperty(key)) throw new Error('property "' + key + '" already exists on the sourcemap, use set property instead');
  return this.setProperty(key, value);
};

Converter.prototype.setProperty = function (key, value) {
  this.sourcemap[key] = value;
  return this;
};

Converter.prototype.getProperty = function (key) {
  return this.sourcemap[key];
};

exports.fromObject = function (obj) {
  return new Converter(obj);
};

exports.fromJSON = function (json) {
  return new Converter(json, { isJSON: true });
};

exports.fromBase64 = function (base64) {
  return new Converter(base64, { isEncoded: true });
};

exports.fromComment = function (comment) {
  comment = comment
    .replace(/^\/\*/g, '//')
    .replace(/\*\/$/g, '');

  return new Converter(comment, { isEncoded: true, hasComment: true });
};

exports.fromMapFileComment = function (comment, dir) {
  return new Converter(comment, { commentFileDir: dir, isFileComment: true, isJSON: true });
};

// Finds last sourcemap comment in file or returns null if none was found
exports.fromSource = function (content) {
  var m = content.match(exports.commentRegex);
  return m ? exports.fromComment(m.pop()) : null;
};

// Finds last sourcemap comment in file or returns null if none was found
exports.fromMapFileSource = function (content, dir) {
  var m = content.match(exports.mapFileCommentRegex);
  return m ? exports.fromMapFileComment(m.pop(), dir) : null;
};

exports.removeComments = function (src) {
  return src.replace(exports.commentRegex, '');
};

exports.removeMapFileComments = function (src) {
  return src.replace(exports.mapFileCommentRegex, '');
};

exports.generateMapFileComment = function (file, options) {
  var data = 'sourceMappingURL=' + file;
  return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
};
}(convertSourceMap));

/**
 *
 * @param {Node} param
 * @returns {string[]}
 */
function extract_names(param) {
	return extract_identifiers(param).map(node => node.name);
}

/**
 *
 * @param {Node} param
 * @param {Identifier[]} nodes
 * @returns {Identifier[]}
 */
function extract_identifiers(param, nodes = []) {
	switch (param.type) {
		case 'Identifier':
			nodes.push(param);
			break;

		case 'MemberExpression':
			let object = param;
			while (object.type === 'MemberExpression') {
				object = /** @type {any} */ (object.object);
			}
			nodes.push(/** @type {any} */ (object));
			break;

		case 'ObjectPattern':
			/**
			 *
			 * @param {Property | RestElement} prop
			 */
			const handle_prop = (prop) => {
				if (prop.type === 'RestElement') {
					extract_identifiers(prop.argument, nodes);
				} else {
					extract_identifiers(prop.value, nodes);
				}
			};

			param.properties.forEach(handle_prop);
			break;

		case 'ArrayPattern':
			/**
			 *
			 * @param {Node} element
			 */
			const handle_element = (element) => {
				if (element) extract_identifiers(element, nodes);
			};

			param.elements.forEach(handle_element);
			break;

		case 'RestElement':
			extract_identifiers(param.argument, nodes);
			break;

		case 'AssignmentPattern':
			extract_identifiers(param.left, nodes);
			break;
	}

	return nodes;
}

const ssrModuleExportsKey = `__vite_ssr_exports__`;
const ssrImportKey = `__vite_ssr_import__`;
const ssrDynamicImportKey = `__vite_ssr_dynamic_import__`;
const ssrExportAllKey = `__vite_ssr_exportAll__`;
const ssrImportMetaKey = `__vite_ssr_import_meta__`;
async function ssrTransform(code, inMap, url) {
    const s = new MagicString(code);
    let ast;
    try {
        ast = parser.parse(code, {
            sourceType: 'module',
            ecmaVersion: 'latest',
            locations: true
        });
    }
    catch (err) {
        if (!err.loc || !err.loc.line)
            throw err;
        const line = err.loc.line;
        throw new Error(`Parse failure: ${err.message}\nContents of line ${line}: ${code.split('\n')[line - 1]}`);
    }
    let uid = 0;
    const deps = new Set();
    const dynamicDeps = new Set();
    const idToImportMap = new Map();
    const declaredConst = new Set();
    function defineImport(node, source) {
        deps.add(source);
        const importId = `__vite_ssr_import_${uid++}__`;
        s.appendLeft(node.start, `const ${importId} = await ${ssrImportKey}(${JSON.stringify(source)});\n`);
        return importId;
    }
    function defineExport(position, name, local = name) {
        s.appendRight(position, `\nObject.defineProperty(${ssrModuleExportsKey}, "${name}", ` +
            `{ enumerable: true, configurable: true, get(){ return ${local} }});`);
    }
    // 1. check all import statements and record id -> importName map
    for (const node of ast.body) {
        // import foo from 'foo' --> foo -> __import_foo__.default
        // import { baz } from 'foo' --> baz -> __import_foo__.baz
        // import * as ok from 'foo' --> ok -> __import_foo__
        if (node.type === 'ImportDeclaration') {
            const importId = defineImport(node, node.source.value);
            for (const spec of node.specifiers) {
                if (spec.type === 'ImportSpecifier') {
                    idToImportMap.set(spec.local.name, `${importId}.${spec.imported.name}`);
                }
                else if (spec.type === 'ImportDefaultSpecifier') {
                    idToImportMap.set(spec.local.name, `${importId}.default`);
                }
                else {
                    // namespace specifier
                    idToImportMap.set(spec.local.name, importId);
                }
            }
            s.remove(node.start, node.end);
        }
    }
    // 2. check all export statements and define exports
    for (const node of ast.body) {
        // named exports
        if (node.type === 'ExportNamedDeclaration') {
            if (node.declaration) {
                if (node.declaration.type === 'FunctionDeclaration' ||
                    node.declaration.type === 'ClassDeclaration') {
                    // export function foo() {}
                    defineExport(node.end, node.declaration.id.name);
                }
                else {
                    // export const foo = 1, bar = 2
                    for (const declaration of node.declaration.declarations) {
                        const names = extract_names(declaration.id);
                        for (const name of names) {
                            defineExport(node.end, name);
                        }
                    }
                }
                s.remove(node.start, node.declaration.start);
            }
            else {
                s.remove(node.start, node.end);
                if (node.source) {
                    // export { foo, bar } from './foo'
                    const importId = defineImport(node, node.source.value);
                    for (const spec of node.specifiers) {
                        defineExport(node.end, spec.exported.name, `${importId}.${spec.local.name}`);
                    }
                }
                else {
                    // export { foo, bar }
                    for (const spec of node.specifiers) {
                        const local = spec.local.name;
                        const binding = idToImportMap.get(local);
                        defineExport(node.end, spec.exported.name, binding || local);
                    }
                }
            }
        }
        // default export
        if (node.type === 'ExportDefaultDeclaration') {
            if ('id' in node.declaration && node.declaration.id) {
                // named hoistable/class exports
                // export default function foo() {}
                // export default class A {}
                const { name } = node.declaration.id;
                s.remove(node.start, node.start + 15 /* 'export default '.length */);
                s.append(`\nObject.defineProperty(${ssrModuleExportsKey}, "default", ` +
                    `{ enumerable: true, value: ${name} });`);
            }
            else {
                // anonymous default exports
                s.overwrite(node.start, node.start + 14 /* 'export default'.length */, `${ssrModuleExportsKey}.default =`);
            }
        }
        // export * from './foo'
        if (node.type === 'ExportAllDeclaration') {
            if (node.exported) {
                const importId = defineImport(node, node.source.value);
                s.remove(node.start, node.end);
                defineExport(node.end, node.exported.name, `${importId}`);
            }
            else {
                const importId = defineImport(node, node.source.value);
                s.remove(node.start, node.end);
                s.appendLeft(node.end, `${ssrExportAllKey}(${importId});`);
            }
        }
    }
    // 3. convert references to import bindings & import.meta references
    walk(ast, {
        onIdentifier(id, parent, parentStack) {
            const binding = idToImportMap.get(id.name);
            if (!binding) {
                return;
            }
            if (isStaticProperty(parent) && parent.shorthand) {
                // let binding used in a property shorthand
                // { foo } -> { foo: __import_x__.foo }
                // skip for destructuring patterns
                if (!parent.inPattern ||
                    isInDestructuringAssignment(parent, parentStack)) {
                    s.appendLeft(id.end, `: ${binding}`);
                }
            }
            else if (parent.type === 'ClassDeclaration' &&
                id === parent.superClass) {
                if (!declaredConst.has(id.name)) {
                    declaredConst.add(id.name);
                    // locate the top-most node containing the class declaration
                    const topNode = parentStack[1];
                    s.prependRight(topNode.start, `const ${id.name} = ${binding};\n`);
                }
            }
            else {
                s.overwrite(id.start, id.end, binding);
            }
        },
        onImportMeta(node) {
            s.overwrite(node.start, node.end, ssrImportMetaKey);
        },
        onDynamicImport(node) {
            s.overwrite(node.start, node.start + 6, ssrDynamicImportKey);
            if (node.type === 'ImportExpression' && node.source.type === 'Literal') {
                dynamicDeps.add(node.source.value);
            }
        }
    });
    let map = s.generateMap({ hires: true });
    if (inMap && inMap.mappings && inMap.sources.length > 0) {
        map = combineSourcemaps(url, [
            {
                ...map,
                sources: inMap.sources,
                sourcesContent: inMap.sourcesContent
            },
            inMap
        ]);
    }
    else {
        map.sources = [url];
        map.sourcesContent = [code];
    }
    return {
        code: s.toString(),
        map,
        deps: [...deps],
        dynamicDeps: [...dynamicDeps]
    };
}
/**
 * Same logic from \@vue/compiler-core & \@vue/compiler-sfc
 * Except this is using acorn AST
 */
function walk(root, { onIdentifier, onImportMeta, onDynamicImport }) {
    const parentStack = [];
    const scope = Object.create(null);
    const scopeMap = new WeakMap();
    const setScope = (node, name) => {
        let scopeIds = scopeMap.get(node);
        if (scopeIds && scopeIds.has(name)) {
            return;
        }
        if (name in scope) {
            scope[name]++;
        }
        else {
            scope[name] = 1;
        }
        if (!scopeIds) {
            scopeIds = new Set();
            scopeMap.set(node, scopeIds);
        }
        scopeIds.add(name);
    };
    walk$1(root, {
        enter(node, parent) {
            if (node.type === 'ImportDeclaration') {
                return this.skip();
            }
            parent && parentStack.push(parent);
            if (node.type === 'MetaProperty' && node.meta.name === 'import') {
                onImportMeta(node);
            }
            else if (node.type === 'ImportExpression') {
                onDynamicImport(node);
            }
            if (node.type === 'Identifier') {
                if (!scope[node.name] && isRefIdentifier(node, parent, parentStack)) {
                    onIdentifier(node, parent, parentStack);
                }
            }
            else if (isFunction(node)) {
                // If it is a function declaration, it could be shadowing an import
                // Add its name to the scope so it won't get replaced
                if (node.type === 'FunctionDeclaration') {
                    const parentFunction = findParentFunction(parentStack);
                    if (parentFunction) {
                        setScope(parentFunction, node.id.name);
                    }
                }
                // walk function expressions and add its arguments to known identifiers
                // so that we don't prefix them
                node.params.forEach((p) => walk$1(p.type === 'AssignmentPattern' ? p.left : p, {
                    enter(child, parent) {
                        if (child.type === 'Identifier' &&
                            // do not record as scope variable if is a destructuring key
                            !isStaticPropertyKey(child, parent) &&
                            // do not record if this is a default value
                            // assignment of a destructuring variable
                            !(parent &&
                                parent.type === 'AssignmentPattern' &&
                                parent.right === child)) {
                            setScope(node, child.name);
                        }
                    }
                }));
            }
            else if (node.type === 'Property' && parent.type === 'ObjectPattern') {
                node.inPattern = true;
            }
            else if (node.type === 'VariableDeclarator') {
                const parentFunction = findParentFunction(parentStack);
                if (parentFunction) {
                    if (node.id.type === 'ObjectPattern') {
                        node.id.properties.forEach((property) => {
                            if (property.type === 'RestElement') {
                                setScope(parentFunction, property.argument.name);
                            }
                            else {
                                setScope(parentFunction, property.value.name);
                            }
                        });
                    }
                    else {
                        setScope(parentFunction, node.id.name);
                    }
                }
            }
        },
        leave(node, parent) {
            parent && parentStack.pop();
            const scopeIds = scopeMap.get(node);
            if (scopeIds) {
                scopeIds.forEach((id) => {
                    scope[id]--;
                    if (scope[id] === 0) {
                        delete scope[id];
                    }
                });
            }
        }
    });
}
function isRefIdentifier(id, parent, parentStack) {
    // declaration id
    if (parent.type === 'CatchClause' ||
        ((parent.type === 'VariableDeclarator' ||
            parent.type === 'ClassDeclaration') &&
            parent.id === id)) {
        return false;
    }
    if (isFunction(parent)) {
        // function declaration/expression id
        if (parent.id === id) {
            return false;
        }
        // params list
        if (parent.params.includes(id)) {
            return false;
        }
    }
    // class method name
    if (parent.type === 'MethodDefinition') {
        return false;
    }
    // property key
    // this also covers object destructuring pattern
    if (isStaticPropertyKey(id, parent) || parent.inPattern) {
        return false;
    }
    // non-assignment array destructuring pattern
    if (parent.type === 'ArrayPattern' &&
        !isInDestructuringAssignment(parent, parentStack)) {
        return false;
    }
    // member expression property
    if (parent.type === 'MemberExpression' &&
        parent.property === id &&
        !parent.computed) {
        return false;
    }
    if (parent.type === 'ExportSpecifier') {
        return false;
    }
    // is a special keyword but parsed as identifier
    if (id.name === 'arguments') {
        return false;
    }
    return true;
}
const isStaticProperty = (node) => node && node.type === 'Property' && !node.computed;
const isStaticPropertyKey = (node, parent) => isStaticProperty(parent) && parent.key === node;
function isFunction(node) {
    return /Function(?:Expression|Declaration)$|Method$/.test(node.type);
}
function findParentFunction(parentStack) {
    for (let i = parentStack.length - 1; i >= 0; i--) {
        const node = parentStack[i];
        if (isFunction(node)) {
            return node;
        }
    }
}
function isInDestructuringAssignment(parent, parentStack) {
    if (parent &&
        (parent.type === 'Property' || parent.type === 'ArrayPattern')) {
        let i = parentStack.length;
        while (i--) {
            const p = parentStack[i];
            if (p.type === 'AssignmentExpression') {
                return true;
            }
            else if (p.type !== 'Property' && !p.type.endsWith('Pattern')) {
                break;
            }
        }
    }
    return false;
}

const isDebug$3 = !!process.env.DEBUG;
const debug$4 = createDebugger('vite:sourcemap', {
    onlyWhenFocused: true
});
// Virtual modules should be prefixed with a null byte to avoid a
// false positive "missing source" warning. We also check for certain
// prefixes used for special handling in esbuildDepPlugin.
const virtualSourceRE = /^(\0|dep:|browser-external:)/;
async function injectSourcesContent(map, file, logger) {
    let sourceRoot;
    try {
        // The source root is undefined for virtual modules and permission errors.
        sourceRoot = await fs$r.promises.realpath(path__default.resolve(path__default.dirname(file), map.sourceRoot || ''));
    }
    catch { }
    const missingSources = [];
    map.sourcesContent = await Promise.all(map.sources.map((sourcePath) => {
        if (sourcePath && !virtualSourceRE.test(sourcePath)) {
            sourcePath = decodeURI(sourcePath);
            if (sourceRoot) {
                sourcePath = path__default.resolve(sourceRoot, sourcePath);
            }
            return fs$r.promises.readFile(sourcePath, 'utf-8').catch(() => {
                missingSources.push(sourcePath);
                return null;
            });
        }
        return null;
    }));
    // Use this command…
    //    DEBUG="vite:sourcemap" vite build
    // …to log the missing sources.
    if (missingSources.length) {
        logger.warnOnce(`Sourcemap for "${file}" points to missing source files`);
        isDebug$3 && debug$4(`Missing sources:\n  ` + missingSources.join(`\n  `));
    }
}

/**
 * @typedef ParsedURL
 * @type {import('.').ParsedURL}
 */

/**
 * @typedef Request
 * @property {string} url
 * @property {ParsedURL} _parsedUrl
 */

/**
 * @param {Request} req
 * @returns {ParsedURL|void}
 */
function parse$5(req) {
	let raw = req.url;
	if (raw == null) return;

	let prev = req._parsedUrl;
	if (prev && prev.raw === raw) return prev;

	let pathname=raw, search='', query;

	if (raw.length > 1) {
		let idx = raw.indexOf('?', 1);

		if (idx !== -1) {
			search = raw.substring(idx);
			pathname = raw.substring(0, idx);
			if (search.length > 1) {
				query = qs__namespace.parse(search.substring(1));
			}
		}
	}

	return req._parsedUrl = { pathname, search, query, raw };
}

function list(dir, callback, pre='') {
	dir = path$t.resolve('.', dir);
	let arr = fs$r.readdirSync(dir);
	let i=0, abs, stats;
	for (; i < arr.length; i++) {
		abs = path$t.join(dir, arr[i]);
		stats = fs$r.statSync(abs);
		stats.isDirectory()
			? list(abs, callback, path$t.join(pre, arr[i]))
			: callback(path$t.join(pre, arr[i]), abs, stats);
	}
}

const noop$1 = () => {};

function isMatch(uri, arr) {
	for (let i=0; i < arr.length; i++) {
		if (arr[i].test(uri)) return true;
	}
}

function toAssume(uri, extns) {
	let i=0, x, len=uri.length - 1;
	if (uri.charCodeAt(len) === 47) {
		uri = uri.substring(0, len);
	}

	let arr=[], tmp=`${uri}/index`;
	for (; i < extns.length; i++) {
		x = extns[i] ? `.${extns[i]}` : '';
		if (uri) arr.push(uri + x);
		arr.push(tmp + x);
	}

	return arr;
}

function viaCache(cache, uri, extns) {
	let i=0, data, arr=toAssume(uri, extns);
	for (; i < arr.length; i++) {
		if (data = cache[arr[i]]) return data;
	}
}

function viaLocal(dir, isEtag, uri, extns) {
	let i=0, arr=toAssume(uri, extns);
	let abs, stats, name, headers;
	for (; i < arr.length; i++) {
		abs = path$t.normalize(path$t.join(dir, name=arr[i]));
		if (abs.startsWith(dir) && fs__namespace.existsSync(abs)) {
			stats = fs__namespace.statSync(abs);
			if (stats.isDirectory()) continue;
			headers = toHeaders(name, stats, isEtag);
			headers['Cache-Control'] = isEtag ? 'no-cache' : 'no-store';
			return { abs, stats, headers };
		}
	}
}

function is404(req, res) {
	return (res.statusCode=404,res.end());
}

function send(req, res, file, stats, headers) {
	let code=200, tmp, opts={};
	headers = { ...headers };

	for (let key in headers) {
		tmp = res.getHeader(key);
		if (tmp) headers[key] = tmp;
	}

	if (tmp = res.getHeader('content-type')) {
		headers['Content-Type'] = tmp;
	}

	if (req.headers.range) {
		code = 206;
		let [x, y] = req.headers.range.replace('bytes=', '').split('-');
		let end = opts.end = parseInt(y, 10) || stats.size - 1;
		let start = opts.start = parseInt(x, 10) || 0;

		if (start >= stats.size || end >= stats.size) {
			res.setHeader('Content-Range', `bytes */${stats.size}`);
			res.statusCode = 416;
			return res.end();
		}

		headers['Content-Range'] = `bytes ${start}-${end}/${stats.size}`;
		headers['Content-Length'] = (end - start + 1);
		headers['Accept-Ranges'] = 'bytes';
	}

	res.writeHead(code, headers);
	fs__namespace.createReadStream(file, opts).pipe(res);
}

function isEncoding(name, type, headers) {
	headers['Content-Encoding'] = type;
	headers['Content-Type'] = lite.getType(name.replace(/\.([^.]*)$/, '')) || '';
}

function toHeaders(name, stats, isEtag) {
	let headers = {
		'Content-Length': stats.size,
		'Content-Type': lite.getType(name) || '',
		'Last-Modified': stats.mtime.toUTCString(),
	};
	if (isEtag) headers['ETag'] = `W/"${stats.size}-${stats.mtime.getTime()}"`;
	if (/\.br$/.test(name)) isEncoding(name, 'br', headers);
	if (/\.gz$/.test(name)) isEncoding(name, 'gzip', headers);
	return headers;
}

function sirv (dir, opts={}) {
	dir = path$t.resolve(dir || '.');

	let isNotFound = opts.onNoMatch || is404;
	let setHeaders = opts.setHeaders || noop$1;

	let extensions = opts.extensions || ['html', 'htm'];
	let gzips = opts.gzip && extensions.map(x => `${x}.gz`).concat('gz');
	let brots = opts.brotli && extensions.map(x => `${x}.br`).concat('br');

	const FILES = {};

	let fallback = '/';
	let isEtag = !!opts.etag;
	let isSPA = !!opts.single;
	if (typeof opts.single === 'string') {
		let idx = opts.single.lastIndexOf('.');
		fallback += !!~idx ? opts.single.substring(0, idx) : opts.single;
	}

	let ignores = [];
	if (opts.ignores !== false) {
		ignores.push(/[/]([A-Za-z\s\d~$._-]+\.\w+){1,}$/); // any extn
		if (opts.dotfiles) ignores.push(/\/\.\w/);
		else ignores.push(/\/\.well-known/);
		[].concat(opts.ignores || []).forEach(x => {
			ignores.push(new RegExp(x, 'i'));
		});
	}

	let cc = opts.maxAge != null && `public,max-age=${opts.maxAge}`;
	if (cc && opts.immutable) cc += ',immutable';
	else if (cc && opts.maxAge === 0) cc += ',must-revalidate';

	if (!opts.dev) {
		list(dir, (name, abs, stats) => {
			if (/\.well-known[\\+\/]/.test(name)) ; // keep
			else if (!opts.dotfiles && /(^\.|[\\+|\/+]\.)/.test(name)) return;

			let headers = toHeaders(name, stats, isEtag);
			if (cc) headers['Cache-Control'] = cc;

			FILES['/' + name.normalize().replace(/\\+/g, '/')] = { abs, stats, headers };
		});
	}

	let lookup = opts.dev ? viaLocal.bind(0, dir, isEtag) : viaCache.bind(0, FILES);

	return function (req, res, next) {
		let extns = [''];
		let pathname = parse$5(req).pathname;
		let val = req.headers['accept-encoding'] || '';
		if (gzips && val.includes('gzip')) extns.unshift(...gzips);
		if (brots && /(br|brotli)/i.test(val)) extns.unshift(...brots);
		extns.push(...extensions); // [...br, ...gz, orig, ...exts]

		if (pathname.indexOf('%') !== -1) {
			try { pathname = decodeURIComponent(pathname); }
			catch (err) { /* malform uri */ }
		}

		let data = lookup(pathname, extns) || isSPA && !isMatch(pathname, ignores) && lookup(fallback, extns);
		if (!data) return next ? next() : isNotFound(req, res);

		if (isEtag && req.headers['if-none-match'] === data.headers['ETag']) {
			res.writeHead(304);
			return res.end();
		}

		if (gzips || brots) {
			res.setHeader('Vary', 'Accept-Encoding');
		}

		setHeaders(res, pathname, data.stats);
		send(req, res, data.abs, data.stats, data.headers);
	};
}

const sirvOptions = {
    dev: true,
    etag: true,
    extensions: [],
    setHeaders(res, pathname) {
        // Matches js, jsx, ts, tsx.
        // The reason this is done, is that the .ts file extension is reserved
        // for the MIME type video/mp2t. In almost all cases, we can expect
        // these files to be TypeScript files, and for Vite to serve them with
        // this Content-Type.
        if (/\.[tj]sx?$/.test(pathname)) {
            res.setHeader('Content-Type', 'application/javascript');
        }
    }
};
function servePublicMiddleware(dir) {
    const serve = sirv(dir, sirvOptions);
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return function viteServePublicMiddleware(req, res, next) {
        // skip import request and internal requests `/@fs/ /@vite-client` etc...
        if (isImportRequest(req.url) || isInternalRequest(req.url)) {
            return next();
        }
        serve(req, res, next);
    };
}
function serveStaticMiddleware(dir, server) {
    const serve = sirv(dir, sirvOptions);
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return function viteServeStaticMiddleware(req, res, next) {
        // only serve the file if it's not an html request or ends with `/`
        // so that html requests can fallthrough to our html middleware for
        // special processing
        // also skip internal requests `/@fs/ /@vite-client` etc...
        const cleanedUrl = cleanUrl(req.url);
        if (cleanedUrl.endsWith('/') ||
            path__default.extname(cleanedUrl) === '.html' ||
            isInternalRequest(req.url)) {
            return next();
        }
        const url = decodeURI(req.url);
        // apply aliases to static requests as well
        let redirected;
        for (const { find, replacement } of server.config.resolve.alias) {
            const matches = typeof find === 'string' ? url.startsWith(find) : find.test(url);
            if (matches) {
                redirected = url.replace(find, replacement);
                break;
            }
        }
        if (redirected) {
            // dir is pre-normalized to posix style
            if (redirected.startsWith(dir)) {
                redirected = redirected.slice(dir.length);
            }
        }
        const resolvedUrl = redirected || url;
        let fileUrl = path__default.resolve(dir, resolvedUrl.replace(/^\//, ''));
        if (resolvedUrl.endsWith('/') && !fileUrl.endsWith('/')) {
            fileUrl = fileUrl + '/';
        }
        if (!ensureServingAccess(fileUrl, server, res, next)) {
            return;
        }
        if (redirected) {
            req.url = redirected;
        }
        serve(req, res, next);
    };
}
function serveRawFsMiddleware(server) {
    const serveFromRoot = sirv('/', sirvOptions);
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return function viteServeRawFsMiddleware(req, res, next) {
        let url = req.url;
        // In some cases (e.g. linked monorepos) files outside of root will
        // reference assets that are also out of served root. In such cases
        // the paths are rewritten to `/@fs/` prefixed paths and must be served by
        // searching based from fs root.
        if (url.startsWith(FS_PREFIX)) {
            // restrict files outside of `fs.allow`
            if (!ensureServingAccess(slash$3(path__default.resolve(fsPathFromId(url))), server, res, next)) {
                return;
            }
            url = url.slice(FS_PREFIX.length);
            if (isWindows$4)
                url = url.replace(/^[A-Z]:/i, '');
            req.url = url;
            serveFromRoot(req, res, next);
        }
        else {
            next();
        }
    };
}
function isFileServingAllowed(url, server) {
    // explicitly disabled
    if (server.config.server.fs.strict === false)
        return true;
    const cleanedUrl = cleanUrl(url);
    const file = ensureLeadingSlash(normalizePath$4(cleanedUrl));
    if (server.moduleGraph.safeModulesPath.has(file))
        return true;
    if (server.config.server.fs.allow.some((i) => file.startsWith(i + '/')))
        return true;
    if (!server.config.server.fs.strict) {
        if (isFileReadable(cleanedUrl)) {
            server.config.logger.warnOnce(`Unrestricted file system access to "${url}"`);
            server.config.logger.warnOnce(`For security concerns, accessing files outside of serving allow list will ` +
                `be restricted by default in the future version of Vite. ` +
                `Refer to https://vitejs.dev/config/#server-fs-allow for more details.`);
        }
        return true;
    }
    return false;
}
function ensureServingAccess(url, server, res, next) {
    if (isFileServingAllowed(url, server)) {
        return true;
    }
    if (isFileReadable(cleanUrl(url))) {
        const urlMessage = `The request url "${url}" is outside of Vite serving allow list.`;
        const hintMessage = `
${server.config.server.fs.allow.map((i) => `- ${i}`).join('\n')}

Refer to docs https://vitejs.dev/config/#server-fs-allow for configurations and more details.`;
        server.config.logger.error(urlMessage);
        server.config.logger.warnOnce(hintMessage + '\n');
        res.statusCode = 403;
        res.write(renderRestrictedErrorHTML(urlMessage + '\n' + hintMessage));
        res.end();
    }
    else {
        // if the file doesn't exist, we shouldn't restrict this path as it can
        // be an API call. Middlewares would issue a 404 if the file isn't handled
        next();
    }
    return false;
}
function renderRestrictedErrorHTML(msg) {
    // to have syntax highlighting and autocompletion in IDE
    const html = String.raw;
    return html `
    <body>
      <h1>403 Restricted</h1>
      <p>${msg.replace(/\n/g, '<br/>')}</p>
      <style>
        body {
          padding: 1em 2em;
        }
      </style>
    </body>
  `;
}

const debugLoad = createDebugger('vite:load');
const debugTransform = createDebugger('vite:transform');
const debugCache$1 = createDebugger('vite:cache');
const isDebug$2 = !!process.env.DEBUG;
function transformRequest(url, server, options = {}) {
    const pending = server._pendingRequests[url];
    if (pending) {
        debugTransform(`[reuse pending] for ${prettifyUrl(url, server.config.root)}`);
        return pending;
    }
    const result = doTransform(url, server, options);
    server._pendingRequests[url] = result;
    const onDone = () => {
        server._pendingRequests[url] = null;
    };
    result.then(onDone, onDone);
    return result;
}
async function doTransform(url, server, options) {
    var _a, _b;
    url = removeTimestampQuery(url);
    const { config, pluginContainer, moduleGraph, watcher } = server;
    const { root, logger } = config;
    const prettyUrl = isDebug$2 ? prettifyUrl(url, root) : '';
    const ssr = !!options.ssr;
    const module = await server.moduleGraph.getModuleByUrl(url);
    // check if we have a fresh cache
    const cached = module && (ssr ? module.ssrTransformResult : module.transformResult);
    if (cached) {
        // TODO: check if the module is "partially invalidated" - i.e. an import
        // down the chain has been fully invalidated, but this current module's
        // content has not changed.
        // in this case, we can reuse its previous cached result and only update
        // its import timestamps.
        isDebug$2 && debugCache$1(`[memory] ${prettyUrl}`);
        return cached;
    }
    // resolve
    const id = ((_a = (await pluginContainer.resolveId(url))) === null || _a === void 0 ? void 0 : _a.id) || url;
    const file = cleanUrl(id);
    let code = null;
    let map = null;
    // load
    const loadStart = isDebug$2 ? perf_hooks.performance.now() : 0;
    const loadResult = await pluginContainer.load(id, ssr);
    if (loadResult == null) {
        // if this is an html request and there is no load result, skip ahead to
        // SPA fallback.
        if (options.html && !id.endsWith('.html')) {
            return null;
        }
        // try fallback loading it from fs as string
        // if the file is a binary, there should be a plugin that already loaded it
        // as string
        // only try the fallback if access is allowed, skip for out of root url
        // like /service-worker.js or /api/users
        if (options.ssr || isFileServingAllowed(file, server)) {
            try {
                code = await fs$r.promises.readFile(file, 'utf-8');
                isDebug$2 && debugLoad(`${timeFrom(loadStart)} [fs] ${prettyUrl}`);
            }
            catch (e) {
                if (e.code !== 'ENOENT') {
                    throw e;
                }
            }
        }
        if (code) {
            try {
                map = (_b = (convertSourceMap.fromSource(code) ||
                    convertSourceMap.fromMapFileSource(code, path__default.dirname(file)))) === null || _b === void 0 ? void 0 : _b.toObject();
            }
            catch (e) {
                logger.warn(`Failed to load source map for ${url}.`, {
                    timestamp: true
                });
            }
        }
    }
    else {
        isDebug$2 && debugLoad(`${timeFrom(loadStart)} [plugin] ${prettyUrl}`);
        if (isObject$3(loadResult)) {
            code = loadResult.code;
            map = loadResult.map;
        }
        else {
            code = loadResult;
        }
    }
    if (code == null) {
        if (checkPublicFile(url, config)) {
            throw new Error(`Failed to load url ${url} (resolved id: ${id}). ` +
                `This file is in /public and will be copied as-is during build without ` +
                `going through the plugin transforms, and therefore should not be ` +
                `imported from source code. It can only be referenced via HTML tags.`);
        }
        else {
            return null;
        }
    }
    // ensure module in graph after successful load
    const mod = await moduleGraph.ensureEntryFromUrl(url);
    ensureWatchedFile(watcher, mod.file, root);
    // transform
    const transformStart = isDebug$2 ? perf_hooks.performance.now() : 0;
    const transformResult = await pluginContainer.transform(code, id, map, ssr);
    if (transformResult == null ||
        (isObject$3(transformResult) && transformResult.code == null)) {
        // no transform applied, keep code as-is
        isDebug$2 &&
            debugTransform(timeFrom(transformStart) + source.dim(` [skipped] ${prettyUrl}`));
    }
    else {
        isDebug$2 && debugTransform(`${timeFrom(transformStart)} ${prettyUrl}`);
        code = transformResult.code;
        map = transformResult.map;
    }
    if (map && mod.file) {
        map = (typeof map === 'string' ? JSON.parse(map) : map);
        if (map.mappings && !map.sourcesContent) {
            await injectSourcesContent(map, mod.file, logger);
        }
    }
    if (ssr) {
        return (mod.ssrTransformResult = await ssrTransform(code, map, url));
    }
    else {
        return (mod.transformResult = {
            code,
            map,
            etag: etag_1(code, { weak: true })
        });
    }
}

/**
 * Time (ms) Vite has to full-reload the page before returning
 * an empty response.
 */
const NEW_DEPENDENCY_BUILD_TIMEOUT = 1000;
const debugCache = createDebugger('vite:cache');
const isDebug$1 = !!process.env.DEBUG;
const knownIgnoreList = new Set(['/', '/favicon.ico']);
function transformMiddleware(server) {
    const { config: { root, logger, cacheDir }, moduleGraph } = server;
    // determine the url prefix of files inside cache directory
    let cacheDirPrefix;
    if (cacheDir) {
        const cacheDirRelative = normalizePath$4(path__default.relative(root, cacheDir));
        if (cacheDirRelative.startsWith('../')) {
            // if the cache directory is outside root, the url prefix would be something
            // like '/@fs/absolute/path/to/node_modules/.vite'
            cacheDirPrefix = `/@fs/${normalizePath$4(cacheDir).replace(/^\//, '')}`;
        }
        else {
            // if the cache directory is inside root, the url prefix would be something
            // like '/node_modules/.vite'
            cacheDirPrefix = `/${cacheDirRelative}`;
        }
    }
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return async function viteTransformMiddleware(req, res, next) {
        var _a, _b, _c, _d, _e, _f, _g, _h;
        if (req.method !== 'GET' || knownIgnoreList.has(req.url)) {
            return next();
        }
        if (server._pendingReload &&
            // always allow vite client requests so that it can trigger page reload
            !((_a = req.url) === null || _a === void 0 ? void 0 : _a.startsWith(CLIENT_PUBLIC_PATH)) &&
            !((_b = req.url) === null || _b === void 0 ? void 0 : _b.includes('vite/dist/client'))) {
            // missing dep pending reload, hold request until reload happens
            server._pendingReload.then(() => 
            // If the refresh has not happened after timeout, Vite considers
            // something unexpected has happened. In this case, Vite
            // returns an empty response that will error.
            setTimeout(() => {
                // Don't do anything if response has already been sent
                if (res.writableEnded)
                    return;
                // status code request timeout
                res.statusCode = 408;
                res.end(`<h1>[vite] Something unexpected happened while optimizing "${req.url}"<h1>` +
                    `<p>The current page should have reloaded by now</p>`);
            }, NEW_DEPENDENCY_BUILD_TIMEOUT));
            return;
        }
        let url = decodeURI(removeTimestampQuery(req.url)).replace(NULL_BYTE_PLACEHOLDER, '\0');
        const withoutQuery = cleanUrl(url);
        try {
            const isSourceMap = withoutQuery.endsWith('.map');
            // since we generate source map references, handle those requests here
            if (isSourceMap) {
                const originalUrl = url.replace(/\.map($|\?)/, '$1');
                const map = (_d = (_c = (await moduleGraph.getModuleByUrl(originalUrl))) === null || _c === void 0 ? void 0 : _c.transformResult) === null || _d === void 0 ? void 0 : _d.map;
                if (map) {
                    return send$1(req, res, JSON.stringify(map), 'json');
                }
                else {
                    return next();
                }
            }
            // check if public dir is inside root dir
            const publicDir = normalizePath$4(server.config.publicDir);
            const rootDir = normalizePath$4(server.config.root);
            if (publicDir.startsWith(rootDir)) {
                const publicPath = `${publicDir.slice(rootDir.length)}/`;
                // warn explicit public paths
                if (url.startsWith(publicPath)) {
                    logger.warn(source.yellow(`files in the public directory are served at the root path.\n` +
                        `Instead of ${source.cyan(url)}, use ${source.cyan(url.replace(publicPath, '/'))}.`));
                }
            }
            if (isJSRequest(url) ||
                isImportRequest(url) ||
                isCSSRequest(url) ||
                isHTMLProxy(url)) {
                // strip ?import
                url = removeImportQuery(url);
                // Strip valid id prefix. This is prepended to resolved Ids that are
                // not valid browser import specifiers by the importAnalysis plugin.
                url = unwrapId$1(url);
                // for CSS, we need to differentiate between normal CSS requests and
                // imports
                if (isCSSRequest(url) &&
                    !isDirectRequest(url) &&
                    ((_e = req.headers.accept) === null || _e === void 0 ? void 0 : _e.includes('text/css'))) {
                    url = injectQuery(url, 'direct');
                }
                // check if we can return 304 early
                const ifNoneMatch = req.headers['if-none-match'];
                if (ifNoneMatch &&
                    ((_g = (_f = (await moduleGraph.getModuleByUrl(url))) === null || _f === void 0 ? void 0 : _f.transformResult) === null || _g === void 0 ? void 0 : _g.etag) ===
                        ifNoneMatch) {
                    isDebug$1 && debugCache(`[304] ${prettifyUrl(url, root)}`);
                    res.statusCode = 304;
                    return res.end();
                }
                // resolve, load and transform using the plugin container
                const result = await transformRequest(url, server, {
                    html: (_h = req.headers.accept) === null || _h === void 0 ? void 0 : _h.includes('text/html')
                });
                if (result) {
                    const type = isDirectCSSRequest(url) ? 'css' : 'js';
                    const isDep = DEP_VERSION_RE.test(url) ||
                        (cacheDirPrefix && url.startsWith(cacheDirPrefix));
                    return send$1(req, res, result.code, type, result.etag, 
                    // allow browser to cache npm deps!
                    isDep ? 'max-age=31536000,immutable' : 'no-cache', result.map);
                }
            }
        }
        catch (e) {
            return next(e);
        }
        next();
    };
}

function createDevHtmlTransformFn(server) {
    const [preHooks, postHooks] = resolveHtmlTransforms(server.config.plugins);
    return (url, html, originalUrl) => {
        return applyHtmlTransforms(html, [...preHooks, devHtmlHook, ...postHooks], {
            path: url,
            filename: getHtmlFilename(url, server),
            server,
            originalUrl
        });
    };
}
function getHtmlFilename(url, server) {
    if (url.startsWith(FS_PREFIX)) {
        return fsPathFromId(url);
    }
    else {
        return path__default.join(server.config.root, url.slice(1));
    }
}
const startsWithSingleSlashRE = /^\/(?!\/)/;
const processNodeUrl = (node, s, config, htmlPath, originalUrl) => {
    var _a;
    const url = ((_a = node.value) === null || _a === void 0 ? void 0 : _a.content) || '';
    if (startsWithSingleSlashRE.test(url)) {
        // prefix with base
        s.overwrite(node.value.loc.start.offset, node.value.loc.end.offset, `"${config.base + url.slice(1)}"`);
    }
    else if (url.startsWith('.') &&
        originalUrl &&
        originalUrl !== '/' &&
        htmlPath === '/index.html') {
        // #3230 if some request url (localhost:3000/a/b) return to fallback html, the relative assets
        // path will add `/a/` prefix, it will caused 404.
        // rewrite before `./index.js` -> `localhost:3000/a/index.js`.
        // rewrite after `../index.js` -> `localhost:3000/index.js`.
        s.overwrite(node.value.loc.start.offset, node.value.loc.end.offset, `"${path__default.posix.join(path__default.posix.relative(originalUrl, '/'), url.slice(1))}"`);
    }
};
const devHtmlHook = async (html, { path: htmlPath, server, originalUrl }) => {
    // TODO: solve this design issue
    // Optional chain expressions can return undefined by design
    // eslint-disable-next-line @typescript-eslint/no-non-null-asserted-optional-chain
    const config = server === null || server === void 0 ? void 0 : server.config;
    const base = config.base || '/';
    const s = new MagicString(html);
    let scriptModuleIndex = -1;
    const filePath = cleanUrl(htmlPath);
    await traverseHtml(html, htmlPath, (node) => {
        if (node.type !== 1 /* ELEMENT */) {
            return;
        }
        // script tags
        if (node.tag === 'script') {
            const { src, isModule } = getScriptInfo(node);
            if (isModule) {
                scriptModuleIndex++;
            }
            if (src) {
                processNodeUrl(src, s, config, htmlPath, originalUrl);
            }
            else if (isModule) {
                const url = filePath.replace(config.root, '');
                const contents = node.children
                    .map((child) => child.content || '')
                    .join('');
                // add HTML Proxy to Map
                addToHTMLProxyCache(config, url, scriptModuleIndex, contents);
                // inline js module. convert to src="proxy"
                s.overwrite(node.loc.start.offset, node.loc.end.offset, `<script type="module" src="${config.base + url.slice(1)}?html-proxy&index=${scriptModuleIndex}.js"></script>`);
            }
        }
        // elements with [href/src] attrs
        const assetAttrs = assetAttrsConfig[node.tag];
        if (assetAttrs) {
            for (const p of node.props) {
                if (p.type === 6 /* ATTRIBUTE */ &&
                    p.value &&
                    assetAttrs.includes(p.name)) {
                    processNodeUrl(p, s, config, htmlPath, originalUrl);
                }
            }
        }
    });
    html = s.toString();
    return {
        html,
        tags: [
            {
                tag: 'script',
                attrs: {
                    type: 'module',
                    src: path__default.posix.join(base, CLIENT_PUBLIC_PATH)
                },
                injectTo: 'head-prepend'
            }
        ]
    };
};
function indexHtmlMiddleware(server) {
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return async function viteIndexHtmlMiddleware(req, res, next) {
        if (res.writableEnded) {
            return next();
        }
        const url = req.url && cleanUrl(req.url);
        // spa-fallback always redirects to /index.html
        if ((url === null || url === void 0 ? void 0 : url.endsWith('.html')) && req.headers['sec-fetch-dest'] !== 'script') {
            const filename = getHtmlFilename(url, server);
            if (fs__default.existsSync(filename)) {
                try {
                    let html = fs__default.readFileSync(filename, 'utf-8');
                    html = await server.transformIndexHtml(url, html, req.originalUrl);
                    return send$1(req, res, html, 'html');
                }
                catch (e) {
                    return next(e);
                }
            }
        }
        next();
    };
}

const logTime = createDebugger('vite:time');
function timeMiddleware(root) {
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    return function viteTimeMiddleware(req, res, next) {
        const start = perf_hooks.performance.now();
        const end = res.end;
        res.end = (...args) => {
            logTime(`${timeFrom(start)} ${prettifyUrl(req.url, root)}`);
            // @ts-ignore
            return end.call(res, ...args);
        };
        next();
    };
}

class ModuleNode {
    constructor(url) {
        /**
         * Resolved file system path + query
         */
        this.id = null;
        this.file = null;
        this.importers = new Set();
        this.importedModules = new Set();
        this.acceptedHmrDeps = new Set();
        this.isSelfAccepting = false;
        this.transformResult = null;
        this.ssrTransformResult = null;
        this.ssrModule = null;
        this.lastHMRTimestamp = 0;
        this.url = url;
        this.type = isDirectCSSRequest(url) ? 'css' : 'js';
    }
}
function invalidateSSRModule(mod, seen) {
    if (seen.has(mod)) {
        return;
    }
    seen.add(mod);
    mod.ssrModule = null;
    mod.importers.forEach((importer) => invalidateSSRModule(importer, seen));
}
class ModuleGraph {
    constructor(container) {
        this.urlToModuleMap = new Map();
        this.idToModuleMap = new Map();
        // a single file may corresponds to multiple modules with different queries
        this.fileToModulesMap = new Map();
        this.safeModulesPath = new Set();
        this.container = container;
    }
    async getModuleByUrl(rawUrl) {
        const [url] = await this.resolveUrl(rawUrl);
        return this.urlToModuleMap.get(url);
    }
    getModuleById(id) {
        return this.idToModuleMap.get(removeTimestampQuery(id));
    }
    getModulesByFile(file) {
        return this.fileToModulesMap.get(file);
    }
    onFileChange(file) {
        const mods = this.getModulesByFile(file);
        if (mods) {
            const seen = new Set();
            mods.forEach((mod) => {
                this.invalidateModule(mod, seen);
            });
        }
    }
    invalidateModule(mod, seen = new Set()) {
        mod.transformResult = null;
        mod.ssrTransformResult = null;
        invalidateSSRModule(mod, seen);
    }
    invalidateAll() {
        const seen = new Set();
        this.idToModuleMap.forEach((mod) => {
            this.invalidateModule(mod, seen);
        });
    }
    /**
     * Update the module graph based on a module's updated imports information
     * If there are dependencies that no longer have any importers, they are
     * returned as a Set.
     */
    async updateModuleInfo(mod, importedModules, acceptedModules, isSelfAccepting) {
        mod.isSelfAccepting = isSelfAccepting;
        const prevImports = mod.importedModules;
        const nextImports = (mod.importedModules = new Set());
        let noLongerImported;
        // update import graph
        for (const imported of importedModules) {
            const dep = typeof imported === 'string'
                ? await this.ensureEntryFromUrl(imported)
                : imported;
            dep.importers.add(mod);
            nextImports.add(dep);
        }
        // remove the importer from deps that were imported but no longer are.
        prevImports.forEach((dep) => {
            if (!nextImports.has(dep)) {
                dep.importers.delete(mod);
                if (!dep.importers.size) {
                    (noLongerImported || (noLongerImported = new Set())).add(dep);
                }
            }
        });
        // update accepted hmr deps
        const deps = (mod.acceptedHmrDeps = new Set());
        for (const accepted of acceptedModules) {
            const dep = typeof accepted === 'string'
                ? await this.ensureEntryFromUrl(accepted)
                : accepted;
            deps.add(dep);
        }
        return noLongerImported;
    }
    async ensureEntryFromUrl(rawUrl) {
        const [url, resolvedId] = await this.resolveUrl(rawUrl);
        let mod = this.urlToModuleMap.get(url);
        if (!mod) {
            mod = new ModuleNode(url);
            this.urlToModuleMap.set(url, mod);
            mod.id = resolvedId;
            this.idToModuleMap.set(resolvedId, mod);
            const file = (mod.file = cleanUrl(resolvedId));
            let fileMappedModules = this.fileToModulesMap.get(file);
            if (!fileMappedModules) {
                fileMappedModules = new Set();
                this.fileToModulesMap.set(file, fileMappedModules);
            }
            fileMappedModules.add(mod);
        }
        return mod;
    }
    // some deps, like a css file referenced via @import, don't have its own
    // url because they are inlined into the main css import. But they still
    // need to be represented in the module graph so that they can trigger
    // hmr in the importing css file.
    createFileOnlyEntry(file) {
        file = normalizePath$4(file);
        let fileMappedModules = this.fileToModulesMap.get(file);
        if (!fileMappedModules) {
            fileMappedModules = new Set();
            this.fileToModulesMap.set(file, fileMappedModules);
        }
        const url = `${FS_PREFIX}${file}`;
        for (const m of fileMappedModules) {
            if (m.url === url || m.id === file) {
                return m;
            }
        }
        const mod = new ModuleNode(url);
        mod.file = file;
        fileMappedModules.add(mod);
        return mod;
    }
    // for incoming urls, it is important to:
    // 1. remove the HMR timestamp query (?t=xxxx)
    // 2. resolve its extension so that urls with or without extension all map to
    // the same module
    async resolveUrl(url) {
        var _a;
        url = removeImportQuery(removeTimestampQuery(url));
        const resolvedId = ((_a = (await this.container.resolveId(url))) === null || _a === void 0 ? void 0 : _a.id) || url;
        const ext = path$t.extname(cleanUrl(resolvedId));
        const { pathname, search, hash } = require$$0$8.parse(url);
        if (ext && !pathname.endsWith(ext)) {
            url = pathname + ext + (search || '') + (hash || '');
        }
        return [url, resolvedId];
    }
}

const debugHmr = createDebugger('vite:hmr');
const normalizedClientDir = normalizePath$4(CLIENT_DIR);
function getShortName(file, root) {
    return file.startsWith(root + '/') ? path__default.posix.relative(root, file) : file;
}
async function handleHMRUpdate(file, server) {
    const { ws, config, moduleGraph } = server;
    const shortFile = getShortName(file, config.root);
    const isConfig = file === config.configFile;
    const isConfigDependency = config.configFileDependencies.some((name) => file === path__default.resolve(name));
    const isEnv = config.inlineConfig.envFile !== false && file.endsWith('.env');
    if (isConfig || isConfigDependency || isEnv) {
        // auto restart server
        debugHmr(`[config change] ${source.dim(shortFile)}`);
        config.logger.info(source.green(`${path__default.relative(process.cwd(), file)} changed, restarting server...`), { clear: true, timestamp: true });
        await restartServer(server);
        return;
    }
    debugHmr(`[file change] ${source.dim(shortFile)}`);
    // (dev only) the client itself cannot be hot updated.
    if (file.startsWith(normalizedClientDir)) {
        ws.send({
            type: 'full-reload',
            path: '*'
        });
        return;
    }
    const mods = moduleGraph.getModulesByFile(file);
    // check if any plugin wants to perform custom HMR handling
    const timestamp = Date.now();
    const hmrContext = {
        file,
        timestamp,
        modules: mods ? [...mods] : [],
        read: () => readModifiedFile(file),
        server
    };
    for (const plugin of config.plugins) {
        if (plugin.handleHotUpdate) {
            const filteredModules = await plugin.handleHotUpdate(hmrContext);
            if (filteredModules) {
                hmrContext.modules = filteredModules;
            }
        }
    }
    if (!hmrContext.modules.length) {
        // html file cannot be hot updated
        if (file.endsWith('.html')) {
            config.logger.info(source.green(`page reload `) + source.dim(shortFile), {
                clear: true,
                timestamp: true
            });
            ws.send({
                type: 'full-reload',
                path: config.server.middlewareMode
                    ? '*'
                    : '/' + normalizePath$4(path__default.relative(config.root, file))
            });
        }
        else {
            // loaded but not in the module graph, probably not js
            debugHmr(`[no modules matched] ${source.dim(shortFile)}`);
        }
        return;
    }
    updateModules(shortFile, hmrContext.modules, timestamp, server);
}
function updateModules(file, modules, timestamp, { config, ws }) {
    const updates = [];
    const invalidatedModules = new Set();
    let needFullReload = false;
    for (const mod of modules) {
        invalidate(mod, timestamp, invalidatedModules);
        if (needFullReload) {
            continue;
        }
        const boundaries = new Set();
        const hasDeadEnd = propagateUpdate(mod, boundaries);
        if (hasDeadEnd) {
            needFullReload = true;
            continue;
        }
        updates.push(...[...boundaries].map(({ boundary, acceptedVia }) => ({
            type: `${boundary.type}-update`,
            timestamp,
            path: boundary.url,
            acceptedPath: acceptedVia.url
        })));
    }
    if (needFullReload) {
        config.logger.info(source.green(`page reload `) + source.dim(file), {
            clear: true,
            timestamp: true
        });
        ws.send({
            type: 'full-reload'
        });
    }
    else {
        config.logger.info(updates
            .map(({ path }) => source.green(`hmr update `) + source.dim(path))
            .join('\n'), { clear: true, timestamp: true });
        ws.send({
            type: 'update',
            updates
        });
    }
}
async function handleFileAddUnlink(file, server, isUnlink = false) {
    var _a;
    const modules = [...((_a = server.moduleGraph.getModulesByFile(file)) !== null && _a !== void 0 ? _a : [])];
    if (isUnlink && file in server._globImporters) {
        delete server._globImporters[file];
    }
    else {
        for (const i in server._globImporters) {
            const { module, importGlobs } = server._globImporters[i];
            for (const { base, pattern } of importGlobs) {
                if (minimatch_1(file, pattern) || minimatch_1(path__default.relative(base, file), pattern)) {
                    modules.push(module);
                    // We use `onFileChange` to invalidate `module.file` so that subsequent `ssrLoadModule()`
                    // calls get fresh glob import results with(out) the newly added(/removed) `file`.
                    server.moduleGraph.onFileChange(module.file);
                    break;
                }
            }
        }
    }
    if (modules.length > 0) {
        updateModules(getShortName(file, server.config.root), modules, Date.now(), server);
    }
}
function propagateUpdate(node, boundaries, currentChain = [node]) {
    if (node.isSelfAccepting) {
        boundaries.add({
            boundary: node,
            acceptedVia: node
        });
        // additionally check for CSS importers, since a PostCSS plugin like
        // Tailwind JIT may register any file as a dependency to a CSS file.
        for (const importer of node.importers) {
            if (isCSSRequest(importer.url) && !currentChain.includes(importer)) {
                propagateUpdate(importer, boundaries, currentChain.concat(importer));
            }
        }
        return false;
    }
    if (!node.importers.size) {
        return true;
    }
    // #3716, #3913
    // For a non-CSS file, if all of its importers are CSS files (registered via
    // PostCSS plugins) it should be considered a dead end and force full reload.
    if (!isCSSRequest(node.url) &&
        [...node.importers].every((i) => isCSSRequest(i.url))) {
        return true;
    }
    for (const importer of node.importers) {
        const subChain = currentChain.concat(importer);
        if (importer.acceptedHmrDeps.has(node)) {
            boundaries.add({
                boundary: importer,
                acceptedVia: node
            });
            continue;
        }
        if (currentChain.includes(importer)) {
            // circular deps is considered dead end
            return true;
        }
        if (propagateUpdate(importer, boundaries, subChain)) {
            return true;
        }
    }
    return false;
}
function invalidate(mod, timestamp, seen) {
    if (seen.has(mod)) {
        return;
    }
    seen.add(mod);
    mod.lastHMRTimestamp = timestamp;
    mod.transformResult = null;
    mod.ssrModule = null;
    mod.ssrTransformResult = null;
    mod.importers.forEach((importer) => {
        if (!importer.acceptedHmrDeps.has(mod)) {
            invalidate(importer, timestamp, seen);
        }
    });
}
function handlePrunedModules(mods, { ws }) {
    // update the disposed modules' hmr timestamp
    // since if it's re-imported, it should re-apply side effects
    // and without the timestamp the browser will not re-import it!
    const t = Date.now();
    mods.forEach((mod) => {
        mod.lastHMRTimestamp = t;
        debugHmr(`[dispose] ${source.dim(mod.file)}`);
    });
    ws.send({
        type: 'prune',
        paths: [...mods].map((m) => m.url)
    });
}
/**
 * Lex import.meta.hot.accept() for accepted deps.
 * Since hot.accept() can only accept string literals or array of string
 * literals, we don't really need a heavy @babel/parse call on the entire source.
 *
 * @returns selfAccepts
 */
function lexAcceptedHmrDeps(code, start, urls) {
    let state = 0 /* inCall */;
    // the state can only be 2 levels deep so no need for a stack
    let prevState = 0 /* inCall */;
    let currentDep = '';
    function addDep(index) {
        urls.add({
            url: currentDep,
            start: index - currentDep.length - 1,
            end: index + 1
        });
        currentDep = '';
    }
    for (let i = start; i < code.length; i++) {
        const char = code.charAt(i);
        switch (state) {
            case 0 /* inCall */:
            case 4 /* inArray */:
                if (char === `'`) {
                    prevState = state;
                    state = 1 /* inSingleQuoteString */;
                }
                else if (char === `"`) {
                    prevState = state;
                    state = 2 /* inDoubleQuoteString */;
                }
                else if (char === '`') {
                    prevState = state;
                    state = 3 /* inTemplateString */;
                }
                else if (/\s/.test(char)) {
                    continue;
                }
                else {
                    if (state === 0 /* inCall */) {
                        if (char === `[`) {
                            state = 4 /* inArray */;
                        }
                        else {
                            // reaching here means the first arg is neither a string literal
                            // nor an Array literal (direct callback) or there is no arg
                            // in both case this indicates a self-accepting module
                            return true; // done
                        }
                    }
                    else if (state === 4 /* inArray */) {
                        if (char === `]`) {
                            return false; // done
                        }
                        else if (char === ',') {
                            continue;
                        }
                        else {
                            error$1(i);
                        }
                    }
                }
                break;
            case 1 /* inSingleQuoteString */:
                if (char === `'`) {
                    addDep(i);
                    if (prevState === 0 /* inCall */) {
                        // accept('foo', ...)
                        return false;
                    }
                    else {
                        state = prevState;
                    }
                }
                else {
                    currentDep += char;
                }
                break;
            case 2 /* inDoubleQuoteString */:
                if (char === `"`) {
                    addDep(i);
                    if (prevState === 0 /* inCall */) {
                        // accept('foo', ...)
                        return false;
                    }
                    else {
                        state = prevState;
                    }
                }
                else {
                    currentDep += char;
                }
                break;
            case 3 /* inTemplateString */:
                if (char === '`') {
                    addDep(i);
                    if (prevState === 0 /* inCall */) {
                        // accept('foo', ...)
                        return false;
                    }
                    else {
                        state = prevState;
                    }
                }
                else if (char === '$' && code.charAt(i + 1) === '{') {
                    error$1(i);
                }
                else {
                    currentDep += char;
                }
                break;
            default:
                throw new Error('unknown import.meta.hot lexer state');
        }
    }
    return false;
}
function error$1(pos) {
    const err = new Error(`import.meta.accept() can only accept string literals or an ` +
        `Array of string literals.`);
    err.pos = pos;
    throw err;
}
// vitejs/vite#610 when hot-reloading Vue files, we read immediately on file
// change event and sometimes this can be too early and get an empty buffer.
// Poll until the file's modified time has changed before reading again.
async function readModifiedFile(file) {
    const content = fs__default.readFileSync(file, 'utf-8');
    if (!content) {
        const mtime = fs__default.statSync(file).mtimeMs;
        await new Promise((r) => {
            let n = 0;
            const poll = async () => {
                n++;
                const newMtime = fs__default.statSync(file).mtimeMs;
                if (newMtime !== mtime || n > 10) {
                    r(0);
                }
                else {
                    setTimeout(poll, 10);
                }
            };
            setTimeout(poll, 10);
        });
        return fs__default.readFileSync(file, 'utf-8');
    }
    else {
        return content;
    }
}
async function restartServer(server) {
    // @ts-ignore
    global.__vite_start_time = perf_hooks.performance.now();
    const { port } = server.config.server;
    await server.close();
    let newServer = null;
    try {
        newServer = await createServer(server.config.inlineConfig);
    }
    catch (err) {
        server.config.logger.error(err.message, {
            timestamp: true
        });
        return;
    }
    for (const key in newServer) {
        if (key !== 'app') {
            // @ts-ignore
            server[key] = newServer[key];
        }
    }
    if (!server.config.server.middlewareMode) {
        await server.listen(port, true);
    }
    else {
        server.config.logger.info('server restarted.', { timestamp: true });
    }
}

var isWsl$2 = {exports: {}};

const fs$7 = fs__default;

let isDocker$2;

function hasDockerEnv() {
	try {
		fs$7.statSync('/.dockerenv');
		return true;
	} catch (_) {
		return false;
	}
}

function hasDockerCGroup() {
	try {
		return fs$7.readFileSync('/proc/self/cgroup', 'utf8').includes('docker');
	} catch (_) {
		return false;
	}
}

var isDocker_1 = () => {
	if (isDocker$2 === undefined) {
		isDocker$2 = hasDockerEnv() || hasDockerCGroup();
	}

	return isDocker$2;
};

const os$4 = require$$0__default$1;
const fs$6 = fs__default;
const isDocker$1 = isDocker_1;

const isWsl$1 = () => {
	if (process.platform !== 'linux') {
		return false;
	}

	if (os$4.release().toLowerCase().includes('microsoft')) {
		if (isDocker$1()) {
			return false;
		}

		return true;
	}

	try {
		return fs$6.readFileSync('/proc/version', 'utf8').toLowerCase().includes('microsoft') ?
			!isDocker$1() : false;
	} catch (_) {
		return false;
	}
};

if (process.env.__IS_WSL_TEST__) {
	isWsl$2.exports = isWsl$1;
} else {
	isWsl$2.exports = isWsl$1();
}

var defineLazyProp = (object, propertyName, fn) => {
	const define = value => Object.defineProperty(object, propertyName, {value, enumerable: true, writable: true});

	Object.defineProperty(object, propertyName, {
		configurable: true,
		enumerable: true,
		get() {
			const result = fn();
			define(result);
			return result;
		},
		set(value) {
			define(value);
		}
	});

	return object;
};

const path$9 = path__default;
const childProcess$3 = require$$1__default$4;
const {promises: fs$5, constants: fsConstants} = fs__default;
const isWsl = isWsl$2.exports;
const isDocker = isDocker_1;
const defineLazyProperty = defineLazyProp;

// Path to included `xdg-open`.
const localXdgOpenPath = path$9.join(__dirname, 'xdg-open');

const {platform, arch} = process;

/**
Get the mount point for fixed drives in WSL.

@inner
@returns {string} The mount point.
*/
const getWslDrivesMountPoint = (() => {
	// Default value for "root" param
	// according to https://docs.microsoft.com/en-us/windows/wsl/wsl-config
	const defaultMountPoint = '/mnt/';

	let mountPoint;

	return async function () {
		if (mountPoint) {
			// Return memoized mount point value
			return mountPoint;
		}

		const configFilePath = '/etc/wsl.conf';

		let isConfigFileExists = false;
		try {
			await fs$5.access(configFilePath, fsConstants.F_OK);
			isConfigFileExists = true;
		} catch {}

		if (!isConfigFileExists) {
			return defaultMountPoint;
		}

		const configContent = await fs$5.readFile(configFilePath, {encoding: 'utf8'});
		const configMountPoint = /(?<!#.*)root\s*=\s*(?<mountPoint>.*)/g.exec(configContent);

		if (!configMountPoint) {
			return defaultMountPoint;
		}

		mountPoint = configMountPoint.groups.mountPoint.trim();
		mountPoint = mountPoint.endsWith('/') ? mountPoint : `${mountPoint}/`;

		return mountPoint;
	};
})();

const pTryEach = async (array, mapper) => {
	let latestError;

	for (const item of array) {
		try {
			return await mapper(item); // eslint-disable-line no-await-in-loop
		} catch (error) {
			latestError = error;
		}
	}

	throw latestError;
};

const open = async (target, options) => {
	if (typeof target !== 'string') {
		throw new TypeError('Expected a `target`');
	}

	options = {
		wait: false,
		background: false,
		newInstance: false,
		allowNonzeroExitCode: false,
		...options
	};

	if (Array.isArray(options.app)) {
		return pTryEach(options.app, singleApp => open(target, {
			...options,
			app: singleApp
		}));
	}

	let {name: app, arguments: appArguments = []} = options.app || {};
	appArguments = [...appArguments];

	if (Array.isArray(app)) {
		return pTryEach(app, appName => open(target, {
			...options,
			app: {
				name: appName,
				arguments: appArguments
			}
		}));
	}

	let command;
	const cliArguments = [];
	const childProcessOptions = {};

	if (platform === 'darwin') {
		command = 'open';

		if (options.wait) {
			cliArguments.push('--wait-apps');
		}

		if (options.background) {
			cliArguments.push('--background');
		}

		if (options.newInstance) {
			cliArguments.push('--new');
		}

		if (app) {
			cliArguments.push('-a', app);
		}
	} else if (platform === 'win32' || (isWsl && !isDocker())) {
		const mountPoint = await getWslDrivesMountPoint();

		command = isWsl ?
			`${mountPoint}c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe` :
			`${process.env.SYSTEMROOT}\\System32\\WindowsPowerShell\\v1.0\\powershell`;

		cliArguments.push(
			'-NoProfile',
			'-NonInteractive',
			'–ExecutionPolicy',
			'Bypass',
			'-EncodedCommand'
		);

		if (!isWsl) {
			childProcessOptions.windowsVerbatimArguments = true;
		}

		const encodedArguments = ['Start'];

		if (options.wait) {
			encodedArguments.push('-Wait');
		}

		if (app) {
			// Double quote with double quotes to ensure the inner quotes are passed through.
			// Inner quotes are delimited for PowerShell interpretation with backticks.
			encodedArguments.push(`"\`"${app}\`""`, '-ArgumentList');
			appArguments.unshift(target);
		} else {
			encodedArguments.push(`"${target}"`);
		}

		if (appArguments.length > 0) {
			appArguments = appArguments.map(arg => `"\`"${arg}\`""`);
			encodedArguments.push(appArguments.join(','));
		}

		// Using Base64-encoded command, accepted by PowerShell, to allow special characters.
		target = Buffer.from(encodedArguments.join(' '), 'utf16le').toString('base64');
	} else {
		if (app) {
			command = app;
		} else {
			// When bundled by Webpack, there's no actual package file path and no local `xdg-open`.
			const isBundled = !__dirname || __dirname === '/';

			// Check if local `xdg-open` exists and is executable.
			let exeLocalXdgOpen = false;
			try {
				await fs$5.access(localXdgOpenPath, fsConstants.X_OK);
				exeLocalXdgOpen = true;
			} catch {}

			const useSystemXdgOpen = process.versions.electron ||
				platform === 'android' || isBundled || !exeLocalXdgOpen;
			command = useSystemXdgOpen ? 'xdg-open' : localXdgOpenPath;
		}

		if (appArguments.length > 0) {
			cliArguments.push(...appArguments);
		}

		if (!options.wait) {
			// `xdg-open` will block the process unless stdio is ignored
			// and it's detached from the parent even if it's unref'd.
			childProcessOptions.stdio = 'ignore';
			childProcessOptions.detached = true;
		}
	}

	cliArguments.push(target);

	if (platform === 'darwin' && appArguments.length > 0) {
		cliArguments.push('--args', ...appArguments);
	}

	const subprocess = childProcess$3.spawn(command, cliArguments, childProcessOptions);

	if (options.wait) {
		return new Promise((resolve, reject) => {
			subprocess.once('error', reject);

			subprocess.once('close', exitCode => {
				if (options.allowNonzeroExitCode && exitCode > 0) {
					reject(new Error(`Exited with code ${exitCode}`));
					return;
				}

				resolve(subprocess);
			});
		});
	}

	subprocess.unref();

	return subprocess;
};

function detectArchBinary(binary) {
	if (typeof binary === 'string' || Array.isArray(binary)) {
		return binary;
	}

	const {[arch]: archBinary} = binary;

	if (!archBinary) {
		throw new Error(`${arch} is not supported`);
	}

	return archBinary;
}

function detectPlatformBinary({[platform]: platformBinary}, {wsl}) {
	if (wsl && isWsl) {
		return detectArchBinary(wsl);
	}

	if (!platformBinary) {
		throw new Error(`${platform} is not supported`);
	}

	return detectArchBinary(platformBinary);
}

const apps = {};

defineLazyProperty(apps, 'chrome', () => detectPlatformBinary({
	darwin: 'google chrome',
	win32: 'chrome',
	linux: ['google-chrome', 'google-chrome-stable']
}, {
	wsl: {
		ia32: '/mnt/c/Program Files (x86)/Google/Chrome/Application/chrome.exe',
		x64: ['/mnt/c/Program Files/Google/Chrome/Application/chrome.exe', '/mnt/c/Program Files (x86)/Google/Chrome/Application/chrome.exe']
	}
}));

defineLazyProperty(apps, 'firefox', () => detectPlatformBinary({
	darwin: 'firefox',
	win32: 'C:\\Program Files\\Mozilla Firefox\\firefox.exe',
	linux: 'firefox'
}, {
	wsl: '/mnt/c/Program Files/Mozilla Firefox/firefox.exe'
}));

defineLazyProperty(apps, 'edge', () => detectPlatformBinary({
	darwin: 'microsoft edge',
	win32: 'msedge',
	linux: 'microsoft-edge'
}, {
	wsl: '/mnt/c/Program Files (x86)/Microsoft/Edge/Application/msedge.exe'
}));

open.apps = apps;

var open_1 = open;

var execa$2 = {exports: {}};

var crossSpawn$1 = {exports: {}};

var windows$1 = isexe$3;
isexe$3.sync = sync$2;

var fs$4 = fs__default;

function checkPathExt (path, options) {
  var pathext = options.pathExt !== undefined ?
    options.pathExt : process.env.PATHEXT;

  if (!pathext) {
    return true
  }

  pathext = pathext.split(';');
  if (pathext.indexOf('') !== -1) {
    return true
  }
  for (var i = 0; i < pathext.length; i++) {
    var p = pathext[i].toLowerCase();
    if (p && path.substr(-p.length).toLowerCase() === p) {
      return true
    }
  }
  return false
}

function checkStat$1 (stat, path, options) {
  if (!stat.isSymbolicLink() && !stat.isFile()) {
    return false
  }
  return checkPathExt(path, options)
}

function isexe$3 (path, options, cb) {
  fs$4.stat(path, function (er, stat) {
    cb(er, er ? false : checkStat$1(stat, path, options));
  });
}

function sync$2 (path, options) {
  return checkStat$1(fs$4.statSync(path), path, options)
}

var mode = isexe$2;
isexe$2.sync = sync$1;

var fs$3 = fs__default;

function isexe$2 (path, options, cb) {
  fs$3.stat(path, function (er, stat) {
    cb(er, er ? false : checkStat(stat, options));
  });
}

function sync$1 (path, options) {
  return checkStat(fs$3.statSync(path), options)
}

function checkStat (stat, options) {
  return stat.isFile() && checkMode(stat, options)
}

function checkMode (stat, options) {
  var mod = stat.mode;
  var uid = stat.uid;
  var gid = stat.gid;

  var myUid = options.uid !== undefined ?
    options.uid : process.getuid && process.getuid();
  var myGid = options.gid !== undefined ?
    options.gid : process.getgid && process.getgid();

  var u = parseInt('100', 8);
  var g = parseInt('010', 8);
  var o = parseInt('001', 8);
  var ug = u | g;

  var ret = (mod & o) ||
    (mod & g) && gid === myGid ||
    (mod & u) && uid === myUid ||
    (mod & ug) && myUid === 0;

  return ret
}

var core$1;
if (process.platform === 'win32' || commonjsGlobal.TESTING_WINDOWS) {
  core$1 = windows$1;
} else {
  core$1 = mode;
}

var isexe_1 = isexe$1;
isexe$1.sync = sync;

function isexe$1 (path, options, cb) {
  if (typeof options === 'function') {
    cb = options;
    options = {};
  }

  if (!cb) {
    if (typeof Promise !== 'function') {
      throw new TypeError('callback not provided')
    }

    return new Promise(function (resolve, reject) {
      isexe$1(path, options || {}, function (er, is) {
        if (er) {
          reject(er);
        } else {
          resolve(is);
        }
      });
    })
  }

  core$1(path, options || {}, function (er, is) {
    // ignore EACCES because that just means we aren't allowed to run it
    if (er) {
      if (er.code === 'EACCES' || options && options.ignoreErrors) {
        er = null;
        is = false;
      }
    }
    cb(er, is);
  });
}

function sync (path, options) {
  // my kingdom for a filtered catch
  try {
    return core$1.sync(path, options || {})
  } catch (er) {
    if (options && options.ignoreErrors || er.code === 'EACCES') {
      return false
    } else {
      throw er
    }
  }
}

const isWindows = process.platform === 'win32' ||
    process.env.OSTYPE === 'cygwin' ||
    process.env.OSTYPE === 'msys';

const path$8 = path__default;
const COLON = isWindows ? ';' : ':';
const isexe = isexe_1;

const getNotFoundError = (cmd) =>
  Object.assign(new Error(`not found: ${cmd}`), { code: 'ENOENT' });

const getPathInfo = (cmd, opt) => {
  const colon = opt.colon || COLON;

  // If it has a slash, then we don't bother searching the pathenv.
  // just check the file itself, and that's it.
  const pathEnv = cmd.match(/\//) || isWindows && cmd.match(/\\/) ? ['']
    : (
      [
        // windows always checks the cwd first
        ...(isWindows ? [process.cwd()] : []),
        ...(opt.path || process.env.PATH ||
          /* istanbul ignore next: very unusual */ '').split(colon),
      ]
    );
  const pathExtExe = isWindows
    ? opt.pathExt || process.env.PATHEXT || '.EXE;.CMD;.BAT;.COM'
    : '';
  const pathExt = isWindows ? pathExtExe.split(colon) : [''];

  if (isWindows) {
    if (cmd.indexOf('.') !== -1 && pathExt[0] !== '')
      pathExt.unshift('');
  }

  return {
    pathEnv,
    pathExt,
    pathExtExe,
  }
};

const which$1 = (cmd, opt, cb) => {
  if (typeof opt === 'function') {
    cb = opt;
    opt = {};
  }
  if (!opt)
    opt = {};

  const { pathEnv, pathExt, pathExtExe } = getPathInfo(cmd, opt);
  const found = [];

  const step = i => new Promise((resolve, reject) => {
    if (i === pathEnv.length)
      return opt.all && found.length ? resolve(found)
        : reject(getNotFoundError(cmd))

    const ppRaw = pathEnv[i];
    const pathPart = /^".*"$/.test(ppRaw) ? ppRaw.slice(1, -1) : ppRaw;

    const pCmd = path$8.join(pathPart, cmd);
    const p = !pathPart && /^\.[\\\/]/.test(cmd) ? cmd.slice(0, 2) + pCmd
      : pCmd;

    resolve(subStep(p, i, 0));
  });

  const subStep = (p, i, ii) => new Promise((resolve, reject) => {
    if (ii === pathExt.length)
      return resolve(step(i + 1))
    const ext = pathExt[ii];
    isexe(p + ext, { pathExt: pathExtExe }, (er, is) => {
      if (!er && is) {
        if (opt.all)
          found.push(p + ext);
        else
          return resolve(p + ext)
      }
      return resolve(subStep(p, i, ii + 1))
    });
  });

  return cb ? step(0).then(res => cb(null, res), cb) : step(0)
};

const whichSync = (cmd, opt) => {
  opt = opt || {};

  const { pathEnv, pathExt, pathExtExe } = getPathInfo(cmd, opt);
  const found = [];

  for (let i = 0; i < pathEnv.length; i ++) {
    const ppRaw = pathEnv[i];
    const pathPart = /^".*"$/.test(ppRaw) ? ppRaw.slice(1, -1) : ppRaw;

    const pCmd = path$8.join(pathPart, cmd);
    const p = !pathPart && /^\.[\\\/]/.test(cmd) ? cmd.slice(0, 2) + pCmd
      : pCmd;

    for (let j = 0; j < pathExt.length; j ++) {
      const cur = p + pathExt[j];
      try {
        const is = isexe.sync(cur, { pathExt: pathExtExe });
        if (is) {
          if (opt.all)
            found.push(cur);
          else
            return cur
        }
      } catch (ex) {}
    }
  }

  if (opt.all && found.length)
    return found

  if (opt.nothrow)
    return null

  throw getNotFoundError(cmd)
};

var which_1 = which$1;
which$1.sync = whichSync;

var pathKey$1 = {exports: {}};

const pathKey = (options = {}) => {
	const environment = options.env || process.env;
	const platform = options.platform || process.platform;

	if (platform !== 'win32') {
		return 'PATH';
	}

	return Object.keys(environment).reverse().find(key => key.toUpperCase() === 'PATH') || 'Path';
};

pathKey$1.exports = pathKey;
// TODO: Remove this for the next major release
pathKey$1.exports.default = pathKey;

const path$7 = path__default;
const which = which_1;
const getPathKey = pathKey$1.exports;

function resolveCommandAttempt(parsed, withoutPathExt) {
    const env = parsed.options.env || process.env;
    const cwd = process.cwd();
    const hasCustomCwd = parsed.options.cwd != null;
    // Worker threads do not have process.chdir()
    const shouldSwitchCwd = hasCustomCwd && process.chdir !== undefined && !process.chdir.disabled;

    // If a custom `cwd` was specified, we need to change the process cwd
    // because `which` will do stat calls but does not support a custom cwd
    if (shouldSwitchCwd) {
        try {
            process.chdir(parsed.options.cwd);
        } catch (err) {
            /* Empty */
        }
    }

    let resolved;

    try {
        resolved = which.sync(parsed.command, {
            path: env[getPathKey({ env })],
            pathExt: withoutPathExt ? path$7.delimiter : undefined,
        });
    } catch (e) {
        /* Empty */
    } finally {
        if (shouldSwitchCwd) {
            process.chdir(cwd);
        }
    }

    // If we successfully resolved, ensure that an absolute path is returned
    // Note that when a custom `cwd` was used, we need to resolve to an absolute path based on it
    if (resolved) {
        resolved = path$7.resolve(hasCustomCwd ? parsed.options.cwd : '', resolved);
    }

    return resolved;
}

function resolveCommand$1(parsed) {
    return resolveCommandAttempt(parsed) || resolveCommandAttempt(parsed, true);
}

var resolveCommand_1 = resolveCommand$1;

var _escape = {};

// See http://www.robvanderwoude.com/escapechars.php
const metaCharsRegExp = /([()\][%!^"`<>&|;, *?])/g;

function escapeCommand(arg) {
    // Escape meta chars
    arg = arg.replace(metaCharsRegExp, '^$1');

    return arg;
}

function escapeArgument(arg, doubleEscapeMetaChars) {
    // Convert to string
    arg = `${arg}`;

    // Algorithm below is based on https://qntm.org/cmd

    // Sequence of backslashes followed by a double quote:
    // double up all the backslashes and escape the double quote
    arg = arg.replace(/(\\*)"/g, '$1$1\\"');

    // Sequence of backslashes followed by the end of the string
    // (which will become a double quote later):
    // double up all the backslashes
    arg = arg.replace(/(\\*)$/, '$1$1');

    // All other backslashes occur literally

    // Quote the whole thing:
    arg = `"${arg}"`;

    // Escape meta chars
    arg = arg.replace(metaCharsRegExp, '^$1');

    // Double escape meta chars if necessary
    if (doubleEscapeMetaChars) {
        arg = arg.replace(metaCharsRegExp, '^$1');
    }

    return arg;
}

_escape.command = escapeCommand;
_escape.argument = escapeArgument;

var shebangRegex$1 = /^#!(.*)/;

const shebangRegex = shebangRegex$1;

var shebangCommand$1 = (string = '') => {
	const match = string.match(shebangRegex);

	if (!match) {
		return null;
	}

	const [path, argument] = match[0].replace(/#! ?/, '').split(' ');
	const binary = path.split('/').pop();

	if (binary === 'env') {
		return argument;
	}

	return argument ? `${binary} ${argument}` : binary;
};

const fs$2 = fs__default;
const shebangCommand = shebangCommand$1;

function readShebang$1(command) {
    // Read the first 150 bytes from the file
    const size = 150;
    const buffer = Buffer.alloc(size);

    let fd;

    try {
        fd = fs$2.openSync(command, 'r');
        fs$2.readSync(fd, buffer, 0, size, 0);
        fs$2.closeSync(fd);
    } catch (e) { /* Empty */ }

    // Attempt to extract shebang (null is returned if not a shebang)
    return shebangCommand(buffer.toString());
}

var readShebang_1 = readShebang$1;

const path$6 = path__default;
const resolveCommand = resolveCommand_1;
const escape = _escape;
const readShebang = readShebang_1;

const isWin$2 = process.platform === 'win32';
const isExecutableRegExp = /\.(?:com|exe)$/i;
const isCmdShimRegExp = /node_modules[\\/].bin[\\/][^\\/]+\.cmd$/i;

function detectShebang(parsed) {
    parsed.file = resolveCommand(parsed);

    const shebang = parsed.file && readShebang(parsed.file);

    if (shebang) {
        parsed.args.unshift(parsed.file);
        parsed.command = shebang;

        return resolveCommand(parsed);
    }

    return parsed.file;
}

function parseNonShell(parsed) {
    if (!isWin$2) {
        return parsed;
    }

    // Detect & add support for shebangs
    const commandFile = detectShebang(parsed);

    // We don't need a shell if the command filename is an executable
    const needsShell = !isExecutableRegExp.test(commandFile);

    // If a shell is required, use cmd.exe and take care of escaping everything correctly
    // Note that `forceShell` is an hidden option used only in tests
    if (parsed.options.forceShell || needsShell) {
        // Need to double escape meta chars if the command is a cmd-shim located in `node_modules/.bin/`
        // The cmd-shim simply calls execute the package bin file with NodeJS, proxying any argument
        // Because the escape of metachars with ^ gets interpreted when the cmd.exe is first called,
        // we need to double escape them
        const needsDoubleEscapeMetaChars = isCmdShimRegExp.test(commandFile);

        // Normalize posix paths into OS compatible paths (e.g.: foo/bar -> foo\bar)
        // This is necessary otherwise it will always fail with ENOENT in those cases
        parsed.command = path$6.normalize(parsed.command);

        // Escape command & arguments
        parsed.command = escape.command(parsed.command);
        parsed.args = parsed.args.map((arg) => escape.argument(arg, needsDoubleEscapeMetaChars));

        const shellCommand = [parsed.command].concat(parsed.args).join(' ');

        parsed.args = ['/d', '/s', '/c', `"${shellCommand}"`];
        parsed.command = process.env.comspec || 'cmd.exe';
        parsed.options.windowsVerbatimArguments = true; // Tell node's spawn that the arguments are already escaped
    }

    return parsed;
}

function parse$4(command, args, options) {
    // Normalize arguments, similar to nodejs
    if (args && !Array.isArray(args)) {
        options = args;
        args = null;
    }

    args = args ? args.slice(0) : []; // Clone array to avoid changing the original
    options = Object.assign({}, options); // Clone object to avoid changing the original

    // Build our parsed object
    const parsed = {
        command,
        args,
        options,
        file: undefined,
        original: {
            command,
            args,
        },
    };

    // Delegate further parsing to shell or non-shell
    return options.shell ? parsed : parseNonShell(parsed);
}

var parse_1 = parse$4;

const isWin$1 = process.platform === 'win32';

function notFoundError(original, syscall) {
    return Object.assign(new Error(`${syscall} ${original.command} ENOENT`), {
        code: 'ENOENT',
        errno: 'ENOENT',
        syscall: `${syscall} ${original.command}`,
        path: original.command,
        spawnargs: original.args,
    });
}

function hookChildProcess(cp, parsed) {
    if (!isWin$1) {
        return;
    }

    const originalEmit = cp.emit;

    cp.emit = function (name, arg1) {
        // If emitting "exit" event and exit code is 1, we need to check if
        // the command exists and emit an "error" instead
        // See https://github.com/IndigoUnited/node-cross-spawn/issues/16
        if (name === 'exit') {
            const err = verifyENOENT(arg1, parsed);

            if (err) {
                return originalEmit.call(cp, 'error', err);
            }
        }

        return originalEmit.apply(cp, arguments); // eslint-disable-line prefer-rest-params
    };
}

function verifyENOENT(status, parsed) {
    if (isWin$1 && status === 1 && !parsed.file) {
        return notFoundError(parsed.original, 'spawn');
    }

    return null;
}

function verifyENOENTSync(status, parsed) {
    if (isWin$1 && status === 1 && !parsed.file) {
        return notFoundError(parsed.original, 'spawnSync');
    }

    return null;
}

var enoent$1 = {
    hookChildProcess,
    verifyENOENT,
    verifyENOENTSync,
    notFoundError,
};

const cp = require$$1__default$4;
const parse$3 = parse_1;
const enoent = enoent$1;

function spawn(command, args, options) {
    // Parse the arguments
    const parsed = parse$3(command, args, options);

    // Spawn the child process
    const spawned = cp.spawn(parsed.command, parsed.args, parsed.options);

    // Hook into child process "exit" event to emit an error if the command
    // does not exists, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
    enoent.hookChildProcess(spawned, parsed);

    return spawned;
}

function spawnSync(command, args, options) {
    // Parse the arguments
    const parsed = parse$3(command, args, options);

    // Spawn the child process
    const result = cp.spawnSync(parsed.command, parsed.args, parsed.options);

    // Analyze if the command does not exist, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
    result.error = result.error || enoent.verifyENOENTSync(result.status, parsed);

    return result;
}

crossSpawn$1.exports = spawn;
crossSpawn$1.exports.spawn = spawn;
crossSpawn$1.exports.sync = spawnSync;

crossSpawn$1.exports._parse = parse$3;
crossSpawn$1.exports._enoent = enoent;

var stripFinalNewline$1 = input => {
	const LF = typeof input === 'string' ? '\n' : '\n'.charCodeAt();
	const CR = typeof input === 'string' ? '\r' : '\r'.charCodeAt();

	if (input[input.length - 1] === LF) {
		input = input.slice(0, input.length - 1);
	}

	if (input[input.length - 1] === CR) {
		input = input.slice(0, input.length - 1);
	}

	return input;
};

var npmRunPath$1 = {exports: {}};

(function (module) {
const path = path__default;
const pathKey = pathKey$1.exports;

const npmRunPath = options => {
	options = {
		cwd: process.cwd(),
		path: process.env[pathKey()],
		execPath: process.execPath,
		...options
	};

	let previous;
	let cwdPath = path.resolve(options.cwd);
	const result = [];

	while (previous !== cwdPath) {
		result.push(path.join(cwdPath, 'node_modules/.bin'));
		previous = cwdPath;
		cwdPath = path.resolve(cwdPath, '..');
	}

	// Ensure the running `node` binary is used
	const execPathDir = path.resolve(options.cwd, options.execPath, '..');
	result.push(execPathDir);

	return result.concat(options.path).join(path.delimiter);
};

module.exports = npmRunPath;
// TODO: Remove this for the next major release
module.exports.default = npmRunPath;

module.exports.env = options => {
	options = {
		env: process.env,
		...options
	};

	const env = {...options.env};
	const path = pathKey({env});

	options.path = env[path];
	env[path] = module.exports(options);

	return env;
};
}(npmRunPath$1));

var onetime$2 = {exports: {}};

var mimicFn$2 = {exports: {}};

const mimicFn$1 = (to, from) => {
	for (const prop of Reflect.ownKeys(from)) {
		Object.defineProperty(to, prop, Object.getOwnPropertyDescriptor(from, prop));
	}

	return to;
};

mimicFn$2.exports = mimicFn$1;
// TODO: Remove this for the next major release
mimicFn$2.exports.default = mimicFn$1;

const mimicFn = mimicFn$2.exports;

const calledFunctions = new WeakMap();

const onetime$1 = (function_, options = {}) => {
	if (typeof function_ !== 'function') {
		throw new TypeError('Expected a function');
	}

	let returnValue;
	let callCount = 0;
	const functionName = function_.displayName || function_.name || '<anonymous>';

	const onetime = function (...arguments_) {
		calledFunctions.set(onetime, ++callCount);

		if (callCount === 1) {
			returnValue = function_.apply(this, arguments_);
			function_ = null;
		} else if (options.throw === true) {
			throw new Error(`Function \`${functionName}\` can only be called once`);
		}

		return returnValue;
	};

	mimicFn(onetime, function_);
	calledFunctions.set(onetime, callCount);

	return onetime;
};

onetime$2.exports = onetime$1;
// TODO: Remove this for the next major release
onetime$2.exports.default = onetime$1;

onetime$2.exports.callCount = function_ => {
	if (!calledFunctions.has(function_)) {
		throw new Error(`The given function \`${function_.name}\` is not wrapped by the \`onetime\` package`);
	}

	return calledFunctions.get(function_);
};

var main$2 = {};

var signals$2 = {};

var core = {};

Object.defineProperty(core,"__esModule",{value:true});core.SIGNALS=void 0;

const SIGNALS=[
{
name:"SIGHUP",
number:1,
action:"terminate",
description:"Terminal closed",
standard:"posix"},

{
name:"SIGINT",
number:2,
action:"terminate",
description:"User interruption with CTRL-C",
standard:"ansi"},

{
name:"SIGQUIT",
number:3,
action:"core",
description:"User interruption with CTRL-\\",
standard:"posix"},

{
name:"SIGILL",
number:4,
action:"core",
description:"Invalid machine instruction",
standard:"ansi"},

{
name:"SIGTRAP",
number:5,
action:"core",
description:"Debugger breakpoint",
standard:"posix"},

{
name:"SIGABRT",
number:6,
action:"core",
description:"Aborted",
standard:"ansi"},

{
name:"SIGIOT",
number:6,
action:"core",
description:"Aborted",
standard:"bsd"},

{
name:"SIGBUS",
number:7,
action:"core",
description:
"Bus error due to misaligned, non-existing address or paging error",
standard:"bsd"},

{
name:"SIGEMT",
number:7,
action:"terminate",
description:"Command should be emulated but is not implemented",
standard:"other"},

{
name:"SIGFPE",
number:8,
action:"core",
description:"Floating point arithmetic error",
standard:"ansi"},

{
name:"SIGKILL",
number:9,
action:"terminate",
description:"Forced termination",
standard:"posix",
forced:true},

{
name:"SIGUSR1",
number:10,
action:"terminate",
description:"Application-specific signal",
standard:"posix"},

{
name:"SIGSEGV",
number:11,
action:"core",
description:"Segmentation fault",
standard:"ansi"},

{
name:"SIGUSR2",
number:12,
action:"terminate",
description:"Application-specific signal",
standard:"posix"},

{
name:"SIGPIPE",
number:13,
action:"terminate",
description:"Broken pipe or socket",
standard:"posix"},

{
name:"SIGALRM",
number:14,
action:"terminate",
description:"Timeout or timer",
standard:"posix"},

{
name:"SIGTERM",
number:15,
action:"terminate",
description:"Termination",
standard:"ansi"},

{
name:"SIGSTKFLT",
number:16,
action:"terminate",
description:"Stack is empty or overflowed",
standard:"other"},

{
name:"SIGCHLD",
number:17,
action:"ignore",
description:"Child process terminated, paused or unpaused",
standard:"posix"},

{
name:"SIGCLD",
number:17,
action:"ignore",
description:"Child process terminated, paused or unpaused",
standard:"other"},

{
name:"SIGCONT",
number:18,
action:"unpause",
description:"Unpaused",
standard:"posix",
forced:true},

{
name:"SIGSTOP",
number:19,
action:"pause",
description:"Paused",
standard:"posix",
forced:true},

{
name:"SIGTSTP",
number:20,
action:"pause",
description:"Paused using CTRL-Z or \"suspend\"",
standard:"posix"},

{
name:"SIGTTIN",
number:21,
action:"pause",
description:"Background process cannot read terminal input",
standard:"posix"},

{
name:"SIGBREAK",
number:21,
action:"terminate",
description:"User interruption with CTRL-BREAK",
standard:"other"},

{
name:"SIGTTOU",
number:22,
action:"pause",
description:"Background process cannot write to terminal output",
standard:"posix"},

{
name:"SIGURG",
number:23,
action:"ignore",
description:"Socket received out-of-band data",
standard:"bsd"},

{
name:"SIGXCPU",
number:24,
action:"core",
description:"Process timed out",
standard:"bsd"},

{
name:"SIGXFSZ",
number:25,
action:"core",
description:"File too big",
standard:"bsd"},

{
name:"SIGVTALRM",
number:26,
action:"terminate",
description:"Timeout or timer",
standard:"bsd"},

{
name:"SIGPROF",
number:27,
action:"terminate",
description:"Timeout or timer",
standard:"bsd"},

{
name:"SIGWINCH",
number:28,
action:"ignore",
description:"Terminal window size changed",
standard:"bsd"},

{
name:"SIGIO",
number:29,
action:"terminate",
description:"I/O is available",
standard:"other"},

{
name:"SIGPOLL",
number:29,
action:"terminate",
description:"Watched event",
standard:"other"},

{
name:"SIGINFO",
number:29,
action:"ignore",
description:"Request for process information",
standard:"other"},

{
name:"SIGPWR",
number:30,
action:"terminate",
description:"Device running out of power",
standard:"systemv"},

{
name:"SIGSYS",
number:31,
action:"core",
description:"Invalid system call",
standard:"other"},

{
name:"SIGUNUSED",
number:31,
action:"terminate",
description:"Invalid system call",
standard:"other"}];core.SIGNALS=SIGNALS;

var realtime = {};

Object.defineProperty(realtime,"__esModule",{value:true});realtime.SIGRTMAX=realtime.getRealtimeSignals=void 0;
const getRealtimeSignals=function(){
const length=SIGRTMAX-SIGRTMIN+1;
return Array.from({length},getRealtimeSignal);
};realtime.getRealtimeSignals=getRealtimeSignals;

const getRealtimeSignal=function(value,index){
return {
name:`SIGRT${index+1}`,
number:SIGRTMIN+index,
action:"terminate",
description:"Application-specific signal (realtime)",
standard:"posix"};

};

const SIGRTMIN=34;
const SIGRTMAX=64;realtime.SIGRTMAX=SIGRTMAX;

Object.defineProperty(signals$2,"__esModule",{value:true});signals$2.getSignals=void 0;var _os$1=require$$0__default$1;

var _core=core;
var _realtime$1=realtime;



const getSignals=function(){
const realtimeSignals=(0, _realtime$1.getRealtimeSignals)();
const signals=[..._core.SIGNALS,...realtimeSignals].map(normalizeSignal);
return signals;
};signals$2.getSignals=getSignals;







const normalizeSignal=function({
name,
number:defaultNumber,
description,
action,
forced=false,
standard})
{
const{
signals:{[name]:constantSignal}}=
_os$1.constants;
const supported=constantSignal!==undefined;
const number=supported?constantSignal:defaultNumber;
return {name,number,description,supported,action,forced,standard};
};

Object.defineProperty(main$2,"__esModule",{value:true});main$2.signalsByNumber=main$2.signalsByName=void 0;var _os=require$$0__default$1;

var _signals=signals$2;
var _realtime=realtime;



const getSignalsByName=function(){
const signals=(0, _signals.getSignals)();
return signals.reduce(getSignalByName,{});
};

const getSignalByName=function(
signalByNameMemo,
{name,number,description,supported,action,forced,standard})
{
return {
...signalByNameMemo,
[name]:{name,number,description,supported,action,forced,standard}};

};

const signalsByName$1=getSignalsByName();main$2.signalsByName=signalsByName$1;




const getSignalsByNumber=function(){
const signals=(0, _signals.getSignals)();
const length=_realtime.SIGRTMAX+1;
const signalsA=Array.from({length},(value,number)=>
getSignalByNumber(number,signals));

return Object.assign({},...signalsA);
};

const getSignalByNumber=function(number,signals){
const signal=findSignalByNumber(number,signals);

if(signal===undefined){
return {};
}

const{name,description,supported,action,forced,standard}=signal;
return {
[number]:{
name,
number,
description,
supported,
action,
forced,
standard}};


};



const findSignalByNumber=function(number,signals){
const signal=signals.find(({name})=>_os.constants.signals[name]===number);

if(signal!==undefined){
return signal;
}

return signals.find(signalA=>signalA.number===number);
};

const signalsByNumber=getSignalsByNumber();main$2.signalsByNumber=signalsByNumber;

const {signalsByName} = main$2;

const getErrorPrefix = ({timedOut, timeout, errorCode, signal, signalDescription, exitCode, isCanceled}) => {
	if (timedOut) {
		return `timed out after ${timeout} milliseconds`;
	}

	if (isCanceled) {
		return 'was canceled';
	}

	if (errorCode !== undefined) {
		return `failed with ${errorCode}`;
	}

	if (signal !== undefined) {
		return `was killed with ${signal} (${signalDescription})`;
	}

	if (exitCode !== undefined) {
		return `failed with exit code ${exitCode}`;
	}

	return 'failed';
};

const makeError$1 = ({
	stdout,
	stderr,
	all,
	error,
	signal,
	exitCode,
	command,
	escapedCommand,
	timedOut,
	isCanceled,
	killed,
	parsed: {options: {timeout}}
}) => {
	// `signal` and `exitCode` emitted on `spawned.on('exit')` event can be `null`.
	// We normalize them to `undefined`
	exitCode = exitCode === null ? undefined : exitCode;
	signal = signal === null ? undefined : signal;
	const signalDescription = signal === undefined ? undefined : signalsByName[signal].description;

	const errorCode = error && error.code;

	const prefix = getErrorPrefix({timedOut, timeout, errorCode, signal, signalDescription, exitCode, isCanceled});
	const execaMessage = `Command ${prefix}: ${command}`;
	const isError = Object.prototype.toString.call(error) === '[object Error]';
	const shortMessage = isError ? `${execaMessage}\n${error.message}` : execaMessage;
	const message = [shortMessage, stderr, stdout].filter(Boolean).join('\n');

	if (isError) {
		error.originalMessage = error.message;
		error.message = message;
	} else {
		error = new Error(message);
	}

	error.shortMessage = shortMessage;
	error.command = command;
	error.escapedCommand = escapedCommand;
	error.exitCode = exitCode;
	error.signal = signal;
	error.signalDescription = signalDescription;
	error.stdout = stdout;
	error.stderr = stderr;

	if (all !== undefined) {
		error.all = all;
	}

	if ('bufferedData' in error) {
		delete error.bufferedData;
	}

	error.failed = true;
	error.timedOut = Boolean(timedOut);
	error.isCanceled = isCanceled;
	error.killed = killed && !timedOut;

	return error;
};

var error = makeError$1;

var stdio = {exports: {}};

const aliases = ['stdin', 'stdout', 'stderr'];

const hasAlias = options => aliases.some(alias => options[alias] !== undefined);

const normalizeStdio$1 = options => {
	if (!options) {
		return;
	}

	const {stdio} = options;

	if (stdio === undefined) {
		return aliases.map(alias => options[alias]);
	}

	if (hasAlias(options)) {
		throw new Error(`It's not possible to provide \`stdio\` in combination with one of ${aliases.map(alias => `\`${alias}\``).join(', ')}`);
	}

	if (typeof stdio === 'string') {
		return stdio;
	}

	if (!Array.isArray(stdio)) {
		throw new TypeError(`Expected \`stdio\` to be of type \`string\` or \`Array\`, got \`${typeof stdio}\``);
	}

	const length = Math.max(stdio.length, aliases.length);
	return Array.from({length}, (value, index) => stdio[index]);
};

stdio.exports = normalizeStdio$1;

// `ipc` is pushed unless it is already present
stdio.exports.node = options => {
	const stdio = normalizeStdio$1(options);

	if (stdio === 'ipc') {
		return 'ipc';
	}

	if (stdio === undefined || typeof stdio === 'string') {
		return [stdio, stdio, stdio, 'ipc'];
	}

	if (stdio.includes('ipc')) {
		return stdio;
	}

	return [...stdio, 'ipc'];
};

var signalExit = {exports: {}};

var signals$1 = {exports: {}};

(function (module) {
// This is not the set of all possible signals.
//
// It IS, however, the set of all signals that trigger
// an exit on either Linux or BSD systems.  Linux is a
// superset of the signal names supported on BSD, and
// the unknown signals just fail to register, so we can
// catch that easily enough.
//
// Don't bother with SIGKILL.  It's uncatchable, which
// means that we can't fire any callbacks anyway.
//
// If a user does happen to register a handler on a non-
// fatal signal like SIGWINCH or something, and then
// exit, it'll end up firing `process.emit('exit')`, so
// the handler will be fired anyway.
//
// SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
// artificially, inherently leave the process in a
// state from which it is not safe to try and enter JS
// listeners.
module.exports = [
  'SIGABRT',
  'SIGALRM',
  'SIGHUP',
  'SIGINT',
  'SIGTERM'
];

if (process.platform !== 'win32') {
  module.exports.push(
    'SIGVTALRM',
    'SIGXCPU',
    'SIGXFSZ',
    'SIGUSR2',
    'SIGTRAP',
    'SIGSYS',
    'SIGQUIT',
    'SIGIOT'
    // should detect profiler and enable/disable accordingly.
    // see #21
    // 'SIGPROF'
  );
}

if (process.platform === 'linux') {
  module.exports.push(
    'SIGIO',
    'SIGPOLL',
    'SIGPWR',
    'SIGSTKFLT',
    'SIGUNUSED'
  );
}
}(signals$1));

// Note: since nyc uses this module to output coverage, any lines
// that are in the direct sync flow of nyc's outputCoverage are
// ignored, since we can never get coverage for them.
// grab a reference to node's real process object right away
var process$1 = commonjsGlobal.process;
// some kind of non-node environment, just no-op
if (typeof process$1 !== 'object' || !process$1) {
  signalExit.exports = () => {};
} else {
  var assert = require$$5__default;
  var signals = signals$1.exports;
  var isWin = /^win/i.test(process$1.platform);

  var EE = require$$0__default$5;
  /* istanbul ignore if */
  if (typeof EE !== 'function') {
    EE = EE.EventEmitter;
  }

  var emitter;
  if (process$1.__signal_exit_emitter__) {
    emitter = process$1.__signal_exit_emitter__;
  } else {
    emitter = process$1.__signal_exit_emitter__ = new EE();
    emitter.count = 0;
    emitter.emitted = {};
  }

  // Because this emitter is a global, we have to check to see if a
  // previous version of this library failed to enable infinite listeners.
  // I know what you're about to say.  But literally everything about
  // signal-exit is a compromise with evil.  Get used to it.
  if (!emitter.infinite) {
    emitter.setMaxListeners(Infinity);
    emitter.infinite = true;
  }

  signalExit.exports = function (cb, opts) {
    if (commonjsGlobal.process !== process$1) {
      return
    }
    assert.equal(typeof cb, 'function', 'a callback must be provided for exit handler');

    if (loaded === false) {
      load();
    }

    var ev = 'exit';
    if (opts && opts.alwaysLast) {
      ev = 'afterexit';
    }

    var remove = function () {
      emitter.removeListener(ev, cb);
      if (emitter.listeners('exit').length === 0 &&
          emitter.listeners('afterexit').length === 0) {
        unload();
      }
    };
    emitter.on(ev, cb);

    return remove
  };

  var unload = function unload () {
    if (!loaded || commonjsGlobal.process !== process$1) {
      return
    }
    loaded = false;

    signals.forEach(function (sig) {
      try {
        process$1.removeListener(sig, sigListeners[sig]);
      } catch (er) {}
    });
    process$1.emit = originalProcessEmit;
    process$1.reallyExit = originalProcessReallyExit;
    emitter.count -= 1;
  };
  signalExit.exports.unload = unload;

  var emit = function emit (event, code, signal) {
    if (emitter.emitted[event]) {
      return
    }
    emitter.emitted[event] = true;
    emitter.emit(event, code, signal);
  };

  // { <signal>: <listener fn>, ... }
  var sigListeners = {};
  signals.forEach(function (sig) {
    sigListeners[sig] = function listener () {
      if (process$1 !== commonjsGlobal.process) {
        return
      }
      // If there are no other listeners, an exit is coming!
      // Simplest way: remove us and then re-send the signal.
      // We know that this will kill the process, so we can
      // safely emit now.
      var listeners = process$1.listeners(sig);
      if (listeners.length === emitter.count) {
        unload();
        emit('exit', null, sig);
        /* istanbul ignore next */
        emit('afterexit', null, sig);
        /* istanbul ignore next */
        if (isWin && sig === 'SIGHUP') {
          // "SIGHUP" throws an `ENOSYS` error on Windows,
          // so use a supported signal instead
          sig = 'SIGINT';
        }
        process$1.kill(process$1.pid, sig);
      }
    };
  });

  signalExit.exports.signals = function () {
    return signals
  };

  var loaded = false;

  var load = function load () {
    if (loaded || process$1 !== commonjsGlobal.process) {
      return
    }
    loaded = true;

    // This is the number of onSignalExit's that are in play.
    // It's important so that we can count the correct number of
    // listeners on signals, and don't wait for the other one to
    // handle it instead of us.
    emitter.count += 1;

    signals = signals.filter(function (sig) {
      try {
        process$1.on(sig, sigListeners[sig]);
        return true
      } catch (er) {
        return false
      }
    });

    process$1.emit = processEmit;
    process$1.reallyExit = processReallyExit;
  };
  signalExit.exports.load = load;

  var originalProcessReallyExit = process$1.reallyExit;
  var processReallyExit = function processReallyExit (code) {
    if (process$1 !== commonjsGlobal.process) {
      return
    }
    process$1.exitCode = code || 0;
    emit('exit', process$1.exitCode, null);
    /* istanbul ignore next */
    emit('afterexit', process$1.exitCode, null);
    /* istanbul ignore next */
    originalProcessReallyExit.call(process$1, process$1.exitCode);
  };

  var originalProcessEmit = process$1.emit;
  var processEmit = function processEmit (ev, arg) {
    if (ev === 'exit' && process$1 === commonjsGlobal.process) {
      if (arg !== undefined) {
        process$1.exitCode = arg;
      }
      var ret = originalProcessEmit.apply(this, arguments);
      emit('exit', process$1.exitCode, null);
      /* istanbul ignore next */
      emit('afterexit', process$1.exitCode, null);
      return ret
    } else {
      return originalProcessEmit.apply(this, arguments)
    }
  };
}

const os$3 = require$$0__default$1;
const onExit = signalExit.exports;

const DEFAULT_FORCE_KILL_TIMEOUT = 1000 * 5;

// Monkey-patches `childProcess.kill()` to add `forceKillAfterTimeout` behavior
const spawnedKill$1 = (kill, signal = 'SIGTERM', options = {}) => {
	const killResult = kill(signal);
	setKillTimeout(kill, signal, options, killResult);
	return killResult;
};

const setKillTimeout = (kill, signal, options, killResult) => {
	if (!shouldForceKill(signal, options, killResult)) {
		return;
	}

	const timeout = getForceKillAfterTimeout(options);
	const t = setTimeout(() => {
		kill('SIGKILL');
	}, timeout);

	// Guarded because there's no `.unref()` when `execa` is used in the renderer
	// process in Electron. This cannot be tested since we don't run tests in
	// Electron.
	// istanbul ignore else
	if (t.unref) {
		t.unref();
	}
};

const shouldForceKill = (signal, {forceKillAfterTimeout}, killResult) => {
	return isSigterm(signal) && forceKillAfterTimeout !== false && killResult;
};

const isSigterm = signal => {
	return signal === os$3.constants.signals.SIGTERM ||
		(typeof signal === 'string' && signal.toUpperCase() === 'SIGTERM');
};

const getForceKillAfterTimeout = ({forceKillAfterTimeout = true}) => {
	if (forceKillAfterTimeout === true) {
		return DEFAULT_FORCE_KILL_TIMEOUT;
	}

	if (!Number.isFinite(forceKillAfterTimeout) || forceKillAfterTimeout < 0) {
		throw new TypeError(`Expected the \`forceKillAfterTimeout\` option to be a non-negative integer, got \`${forceKillAfterTimeout}\` (${typeof forceKillAfterTimeout})`);
	}

	return forceKillAfterTimeout;
};

// `childProcess.cancel()`
const spawnedCancel$1 = (spawned, context) => {
	const killResult = spawned.kill();

	if (killResult) {
		context.isCanceled = true;
	}
};

const timeoutKill = (spawned, signal, reject) => {
	spawned.kill(signal);
	reject(Object.assign(new Error('Timed out'), {timedOut: true, signal}));
};

// `timeout` option handling
const setupTimeout$1 = (spawned, {timeout, killSignal = 'SIGTERM'}, spawnedPromise) => {
	if (timeout === 0 || timeout === undefined) {
		return spawnedPromise;
	}

	let timeoutId;
	const timeoutPromise = new Promise((resolve, reject) => {
		timeoutId = setTimeout(() => {
			timeoutKill(spawned, killSignal, reject);
		}, timeout);
	});

	const safeSpawnedPromise = spawnedPromise.finally(() => {
		clearTimeout(timeoutId);
	});

	return Promise.race([timeoutPromise, safeSpawnedPromise]);
};

const validateTimeout$1 = ({timeout}) => {
	if (timeout !== undefined && (!Number.isFinite(timeout) || timeout < 0)) {
		throw new TypeError(`Expected the \`timeout\` option to be a non-negative integer, got \`${timeout}\` (${typeof timeout})`);
	}
};

// `cleanup` option handling
const setExitHandler$1 = async (spawned, {cleanup, detached}, timedPromise) => {
	if (!cleanup || detached) {
		return timedPromise;
	}

	const removeExitHandler = onExit(() => {
		spawned.kill();
	});

	return timedPromise.finally(() => {
		removeExitHandler();
	});
};

var kill = {
	spawnedKill: spawnedKill$1,
	spawnedCancel: spawnedCancel$1,
	setupTimeout: setupTimeout$1,
	validateTimeout: validateTimeout$1,
	setExitHandler: setExitHandler$1
};

const isStream$1 = stream =>
	stream !== null &&
	typeof stream === 'object' &&
	typeof stream.pipe === 'function';

isStream$1.writable = stream =>
	isStream$1(stream) &&
	stream.writable !== false &&
	typeof stream._write === 'function' &&
	typeof stream._writableState === 'object';

isStream$1.readable = stream =>
	isStream$1(stream) &&
	stream.readable !== false &&
	typeof stream._read === 'function' &&
	typeof stream._readableState === 'object';

isStream$1.duplex = stream =>
	isStream$1.writable(stream) &&
	isStream$1.readable(stream);

isStream$1.transform = stream =>
	isStream$1.duplex(stream) &&
	typeof stream._transform === 'function';

var isStream_1 = isStream$1;

var getStream$2 = {exports: {}};

const {PassThrough: PassThroughStream} = require$$0__default$4;

var bufferStream$1 = options => {
	options = {...options};

	const {array} = options;
	let {encoding} = options;
	const isBuffer = encoding === 'buffer';
	let objectMode = false;

	if (array) {
		objectMode = !(encoding || isBuffer);
	} else {
		encoding = encoding || 'utf8';
	}

	if (isBuffer) {
		encoding = null;
	}

	const stream = new PassThroughStream({objectMode});

	if (encoding) {
		stream.setEncoding(encoding);
	}

	let length = 0;
	const chunks = [];

	stream.on('data', chunk => {
		chunks.push(chunk);

		if (objectMode) {
			length = chunks.length;
		} else {
			length += chunk.length;
		}
	});

	stream.getBufferedValue = () => {
		if (array) {
			return chunks;
		}

		return isBuffer ? Buffer.concat(chunks, length) : chunks.join('');
	};

	stream.getBufferedLength = () => length;

	return stream;
};

const {constants: BufferConstants} = require$$0__default$8;
const stream$1 = require$$0__default$4;
const {promisify} = require$$0__default$2;
const bufferStream = bufferStream$1;

const streamPipelinePromisified = promisify(stream$1.pipeline);

class MaxBufferError extends Error {
	constructor() {
		super('maxBuffer exceeded');
		this.name = 'MaxBufferError';
	}
}

async function getStream$1(inputStream, options) {
	if (!inputStream) {
		throw new Error('Expected a stream');
	}

	options = {
		maxBuffer: Infinity,
		...options
	};

	const {maxBuffer} = options;
	const stream = bufferStream(options);

	await new Promise((resolve, reject) => {
		const rejectPromise = error => {
			// Don't retrieve an oversized buffer.
			if (error && stream.getBufferedLength() <= BufferConstants.MAX_LENGTH) {
				error.bufferedData = stream.getBufferedValue();
			}

			reject(error);
		};

		(async () => {
			try {
				await streamPipelinePromisified(inputStream, stream);
				resolve();
			} catch (error) {
				rejectPromise(error);
			}
		})();

		stream.on('data', () => {
			if (stream.getBufferedLength() > maxBuffer) {
				rejectPromise(new MaxBufferError());
			}
		});
	});

	return stream.getBufferedValue();
}

getStream$2.exports = getStream$1;
getStream$2.exports.buffer = (stream, options) => getStream$1(stream, {...options, encoding: 'buffer'});
getStream$2.exports.array = (stream, options) => getStream$1(stream, {...options, array: true});
getStream$2.exports.MaxBufferError = MaxBufferError;

const { PassThrough } = require$$0__default$4;

var mergeStream$1 = function (/*streams...*/) {
  var sources = [];
  var output  = new PassThrough({objectMode: true});

  output.setMaxListeners(0);

  output.add = add;
  output.isEmpty = isEmpty;

  output.on('unpipe', remove);

  Array.prototype.slice.call(arguments).forEach(add);

  return output

  function add (source) {
    if (Array.isArray(source)) {
      source.forEach(add);
      return this
    }

    sources.push(source);
    source.once('end', remove.bind(null, source));
    source.once('error', output.emit.bind(output, 'error'));
    source.pipe(output, {end: false});
    return this
  }

  function isEmpty () {
    return sources.length == 0;
  }

  function remove (source) {
    sources = sources.filter(function (it) { return it !== source });
    if (!sources.length && output.readable) { output.end(); }
  }
};

const isStream = isStream_1;
const getStream = getStream$2.exports;
const mergeStream = mergeStream$1;

// `input` option
const handleInput$1 = (spawned, input) => {
	// Checking for stdin is workaround for https://github.com/nodejs/node/issues/26852
	// @todo remove `|| spawned.stdin === undefined` once we drop support for Node.js <=12.2.0
	if (input === undefined || spawned.stdin === undefined) {
		return;
	}

	if (isStream(input)) {
		input.pipe(spawned.stdin);
	} else {
		spawned.stdin.end(input);
	}
};

// `all` interleaves `stdout` and `stderr`
const makeAllStream$1 = (spawned, {all}) => {
	if (!all || (!spawned.stdout && !spawned.stderr)) {
		return;
	}

	const mixed = mergeStream();

	if (spawned.stdout) {
		mixed.add(spawned.stdout);
	}

	if (spawned.stderr) {
		mixed.add(spawned.stderr);
	}

	return mixed;
};

// On failure, `result.stdout|stderr|all` should contain the currently buffered stream
const getBufferedData = async (stream, streamPromise) => {
	if (!stream) {
		return;
	}

	stream.destroy();

	try {
		return await streamPromise;
	} catch (error) {
		return error.bufferedData;
	}
};

const getStreamPromise = (stream, {encoding, buffer, maxBuffer}) => {
	if (!stream || !buffer) {
		return;
	}

	if (encoding) {
		return getStream(stream, {encoding, maxBuffer});
	}

	return getStream.buffer(stream, {maxBuffer});
};

// Retrieve result of child process: exit code, signal, error, streams (stdout/stderr/all)
const getSpawnedResult$1 = async ({stdout, stderr, all}, {encoding, buffer, maxBuffer}, processDone) => {
	const stdoutPromise = getStreamPromise(stdout, {encoding, buffer, maxBuffer});
	const stderrPromise = getStreamPromise(stderr, {encoding, buffer, maxBuffer});
	const allPromise = getStreamPromise(all, {encoding, buffer, maxBuffer: maxBuffer * 2});

	try {
		return await Promise.all([processDone, stdoutPromise, stderrPromise, allPromise]);
	} catch (error) {
		return Promise.all([
			{error, signal: error.signal, timedOut: error.timedOut},
			getBufferedData(stdout, stdoutPromise),
			getBufferedData(stderr, stderrPromise),
			getBufferedData(all, allPromise)
		]);
	}
};

const validateInputSync$1 = ({input}) => {
	if (isStream(input)) {
		throw new TypeError('The `input` option cannot be a stream in sync mode');
	}
};

var stream = {
	handleInput: handleInput$1,
	makeAllStream: makeAllStream$1,
	getSpawnedResult: getSpawnedResult$1,
	validateInputSync: validateInputSync$1
};

const nativePromisePrototype = (async () => {})().constructor.prototype;
const descriptors = ['then', 'catch', 'finally'].map(property => [
	property,
	Reflect.getOwnPropertyDescriptor(nativePromisePrototype, property)
]);

// The return value is a mixin of `childProcess` and `Promise`
const mergePromise$1 = (spawned, promise) => {
	for (const [property, descriptor] of descriptors) {
		// Starting the main `promise` is deferred to avoid consuming streams
		const value = typeof promise === 'function' ?
			(...args) => Reflect.apply(descriptor.value, promise(), args) :
			descriptor.value.bind(promise);

		Reflect.defineProperty(spawned, property, {...descriptor, value});
	}

	return spawned;
};

// Use promises instead of `child_process` events
const getSpawnedPromise$1 = spawned => {
	return new Promise((resolve, reject) => {
		spawned.on('exit', (exitCode, signal) => {
			resolve({exitCode, signal});
		});

		spawned.on('error', error => {
			reject(error);
		});

		if (spawned.stdin) {
			spawned.stdin.on('error', error => {
				reject(error);
			});
		}
	});
};

var promise = {
	mergePromise: mergePromise$1,
	getSpawnedPromise: getSpawnedPromise$1
};

const normalizeArgs = (file, args = []) => {
	if (!Array.isArray(args)) {
		return [file];
	}

	return [file, ...args];
};

const NO_ESCAPE_REGEXP = /^[\w.-]+$/;
const DOUBLE_QUOTES_REGEXP = /"/g;

const escapeArg = arg => {
	if (typeof arg !== 'string' || NO_ESCAPE_REGEXP.test(arg)) {
		return arg;
	}

	return `"${arg.replace(DOUBLE_QUOTES_REGEXP, '\\"')}"`;
};

const joinCommand$1 = (file, args) => {
	return normalizeArgs(file, args).join(' ');
};

const getEscapedCommand$1 = (file, args) => {
	return normalizeArgs(file, args).map(arg => escapeArg(arg)).join(' ');
};

const SPACES_REGEXP = / +/g;

// Handle `execa.command()`
const parseCommand$1 = command => {
	const tokens = [];
	for (const token of command.trim().split(SPACES_REGEXP)) {
		// Allow spaces to be escaped by a backslash if not meant as a delimiter
		const previousToken = tokens[tokens.length - 1];
		if (previousToken && previousToken.endsWith('\\')) {
			// Merge previous token with current one
			tokens[tokens.length - 1] = `${previousToken.slice(0, -1)} ${token}`;
		} else {
			tokens.push(token);
		}
	}

	return tokens;
};

var command = {
	joinCommand: joinCommand$1,
	getEscapedCommand: getEscapedCommand$1,
	parseCommand: parseCommand$1
};

const path$5 = path__default;
const childProcess$2 = require$$1__default$4;
const crossSpawn = crossSpawn$1.exports;
const stripFinalNewline = stripFinalNewline$1;
const npmRunPath = npmRunPath$1.exports;
const onetime = onetime$2.exports;
const makeError = error;
const normalizeStdio = stdio.exports;
const {spawnedKill, spawnedCancel, setupTimeout, validateTimeout, setExitHandler} = kill;
const {handleInput, getSpawnedResult, makeAllStream, validateInputSync} = stream;
const {mergePromise, getSpawnedPromise} = promise;
const {joinCommand, parseCommand, getEscapedCommand} = command;

const DEFAULT_MAX_BUFFER = 1000 * 1000 * 100;

const getEnv = ({env: envOption, extendEnv, preferLocal, localDir, execPath}) => {
	const env = extendEnv ? {...process.env, ...envOption} : envOption;

	if (preferLocal) {
		return npmRunPath.env({env, cwd: localDir, execPath});
	}

	return env;
};

const handleArguments = (file, args, options = {}) => {
	const parsed = crossSpawn._parse(file, args, options);
	file = parsed.command;
	args = parsed.args;
	options = parsed.options;

	options = {
		maxBuffer: DEFAULT_MAX_BUFFER,
		buffer: true,
		stripFinalNewline: true,
		extendEnv: true,
		preferLocal: false,
		localDir: options.cwd || process.cwd(),
		execPath: process.execPath,
		encoding: 'utf8',
		reject: true,
		cleanup: true,
		all: false,
		windowsHide: true,
		...options
	};

	options.env = getEnv(options);

	options.stdio = normalizeStdio(options);

	if (process.platform === 'win32' && path$5.basename(file, '.exe') === 'cmd') {
		// #116
		args.unshift('/q');
	}

	return {file, args, options, parsed};
};

const handleOutput = (options, value, error) => {
	if (typeof value !== 'string' && !Buffer.isBuffer(value)) {
		// When `execa.sync()` errors, we normalize it to '' to mimic `execa()`
		return error === undefined ? undefined : '';
	}

	if (options.stripFinalNewline) {
		return stripFinalNewline(value);
	}

	return value;
};

const execa = (file, args, options) => {
	const parsed = handleArguments(file, args, options);
	const command = joinCommand(file, args);
	const escapedCommand = getEscapedCommand(file, args);

	validateTimeout(parsed.options);

	let spawned;
	try {
		spawned = childProcess$2.spawn(parsed.file, parsed.args, parsed.options);
	} catch (error) {
		// Ensure the returned error is always both a promise and a child process
		const dummySpawned = new childProcess$2.ChildProcess();
		const errorPromise = Promise.reject(makeError({
			error,
			stdout: '',
			stderr: '',
			all: '',
			command,
			escapedCommand,
			parsed,
			timedOut: false,
			isCanceled: false,
			killed: false
		}));
		return mergePromise(dummySpawned, errorPromise);
	}

	const spawnedPromise = getSpawnedPromise(spawned);
	const timedPromise = setupTimeout(spawned, parsed.options, spawnedPromise);
	const processDone = setExitHandler(spawned, parsed.options, timedPromise);

	const context = {isCanceled: false};

	spawned.kill = spawnedKill.bind(null, spawned.kill.bind(spawned));
	spawned.cancel = spawnedCancel.bind(null, spawned, context);

	const handlePromise = async () => {
		const [{error, exitCode, signal, timedOut}, stdoutResult, stderrResult, allResult] = await getSpawnedResult(spawned, parsed.options, processDone);
		const stdout = handleOutput(parsed.options, stdoutResult);
		const stderr = handleOutput(parsed.options, stderrResult);
		const all = handleOutput(parsed.options, allResult);

		if (error || exitCode !== 0 || signal !== null) {
			const returnedError = makeError({
				error,
				exitCode,
				signal,
				stdout,
				stderr,
				all,
				command,
				escapedCommand,
				parsed,
				timedOut,
				isCanceled: context.isCanceled,
				killed: spawned.killed
			});

			if (!parsed.options.reject) {
				return returnedError;
			}

			throw returnedError;
		}

		return {
			command,
			escapedCommand,
			exitCode: 0,
			stdout,
			stderr,
			all,
			failed: false,
			timedOut: false,
			isCanceled: false,
			killed: false
		};
	};

	const handlePromiseOnce = onetime(handlePromise);

	handleInput(spawned, parsed.options.input);

	spawned.all = makeAllStream(spawned, parsed.options);

	return mergePromise(spawned, handlePromiseOnce);
};

execa$2.exports = execa;

execa$2.exports.sync = (file, args, options) => {
	const parsed = handleArguments(file, args, options);
	const command = joinCommand(file, args);
	const escapedCommand = getEscapedCommand(file, args);

	validateInputSync(parsed.options);

	let result;
	try {
		result = childProcess$2.spawnSync(parsed.file, parsed.args, parsed.options);
	} catch (error) {
		throw makeError({
			error,
			stdout: '',
			stderr: '',
			all: '',
			command,
			escapedCommand,
			parsed,
			timedOut: false,
			isCanceled: false,
			killed: false
		});
	}

	const stdout = handleOutput(parsed.options, result.stdout, result.error);
	const stderr = handleOutput(parsed.options, result.stderr, result.error);

	if (result.error || result.status !== 0 || result.signal !== null) {
		const error = makeError({
			stdout,
			stderr,
			error: result.error,
			signal: result.signal,
			exitCode: result.status,
			command,
			escapedCommand,
			parsed,
			timedOut: result.error && result.error.code === 'ETIMEDOUT',
			isCanceled: false,
			killed: result.signal !== null
		});

		if (!parsed.options.reject) {
			return error;
		}

		throw error;
	}

	return {
		command,
		escapedCommand,
		exitCode: 0,
		stdout,
		stderr,
		failed: false,
		timedOut: false,
		isCanceled: false,
		killed: false
	};
};

execa$2.exports.command = (command, options) => {
	const [file, ...args] = parseCommand(command);
	return execa(file, args, options);
};

execa$2.exports.commandSync = (command, options) => {
	const [file, ...args] = parseCommand(command);
	return execa.sync(file, args, options);
};

execa$2.exports.node = (scriptPath, args, options = {}) => {
	if (args && !Array.isArray(args) && typeof args === 'object') {
		options = args;
		args = [];
	}

	const stdio = normalizeStdio.node(options);
	const defaultExecArgv = process.execArgv.filter(arg => !arg.startsWith('--inspect'));

	const {
		nodePath = process.execPath,
		nodeOptions = defaultExecArgv
	} = options;

	return execa(
		nodePath,
		[
			...nodeOptions,
			scriptPath,
			...(Array.isArray(args) ? args : [])
		],
		{
			...options,
			stdin: undefined,
			stdout: undefined,
			stderr: undefined,
			stdio,
			shell: false
		}
	);
};

var execa$1 = execa$2.exports;

/**
 * The following is modified based on source found in
 * https://github.com/facebook/create-react-app
 *
 * MIT Licensed
 * Copyright (c) 2015-present, Facebook, Inc.
 * https://github.com/facebook/create-react-app/blob/master/LICENSE
 *
 */
// https://github.com/sindresorhus/open#app
const OSX_CHROME = 'google chrome';
/**
 * Reads the BROWSER environment variable and decides what to do with it.
 * Returns true if it opened a browser or ran a node.js script, otherwise false.
 */
function openBrowser(url, opt, logger) {
    // The browser executable to open.
    // See https://github.com/sindresorhus/open#app for documentation.
    const browser = typeof opt === 'string' ? opt : process.env.BROWSER || '';
    if (browser.toLowerCase().endsWith('.js')) {
        return executeNodeScript(browser, url, logger);
    }
    else if (browser.toLowerCase() !== 'none') {
        return startBrowserProcess(browser, url);
    }
    return false;
}
function executeNodeScript(scriptPath, url, logger) {
    const extraArgs = process.argv.slice(2);
    const child = execa$1('node', [scriptPath, ...extraArgs, url], {
        stdio: 'inherit'
    });
    child.on('close', (code) => {
        if (code !== 0) {
            logger.error(source.red(`\nThe script specified as BROWSER environment variable failed.\n\n${source.cyan(scriptPath)} exited with code ${code}.`), { error: null });
        }
    });
    return true;
}
function startBrowserProcess(browser, url) {
    // If we're on OS X, the user hasn't specifically
    // requested a different browser, we can try opening
    // Chrome with AppleScript. This lets us reuse an
    // existing tab when possible instead of creating a new one.
    const shouldTryOpenChromeWithAppleScript = process.platform === 'darwin' && (browser === '' || browser === OSX_CHROME);
    if (shouldTryOpenChromeWithAppleScript) {
        try {
            // Try our best to reuse existing tab
            // on OS X Google Chrome with AppleScript
            require$$1$4.execSync('ps cax | grep "Google Chrome"');
            require$$1$4.execSync('osascript openChrome.applescript "' + encodeURI(url) + '"', {
                cwd: path__default.dirname(require.resolve('vite/bin/openChrome.applescript')),
                stdio: 'ignore'
            });
            return true;
        }
        catch (err) {
            // Ignore errors
        }
    }
    // Another special case: on OS X, check if BROWSER has been set to "open".
    // In this case, instead of passing the string `open` to `open` function (which won't work),
    // just ignore it (thus ensuring the intended behavior, i.e. opening the system browser):
    // https://github.com/facebook/create-react-app/pull/1690#issuecomment-283518768
    if (process.platform === 'darwin' && browser === 'open') {
        browser = undefined;
    }
    // Fallback to open
    // (It will always open new tab)
    try {
        const options = browser ? { app: { name: browser } } : {};
        open_1(url, options).catch(() => { }); // Prevent `unhandledRejection` error.
        return true;
    }
    catch (err) {
        return false;
    }
}

var chalk$1 = {exports: {}};

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;

var escapeStringRegexp = function (str) {
	if (typeof str !== 'string') {
		throw new TypeError('Expected a string');
	}

	return str.replace(matchOperatorsRe, '\\$&');
};

var ansiStyles = {exports: {}};

var conversions$2 = {exports: {}};

var colorName = {
	"aliceblue": [240, 248, 255],
	"antiquewhite": [250, 235, 215],
	"aqua": [0, 255, 255],
	"aquamarine": [127, 255, 212],
	"azure": [240, 255, 255],
	"beige": [245, 245, 220],
	"bisque": [255, 228, 196],
	"black": [0, 0, 0],
	"blanchedalmond": [255, 235, 205],
	"blue": [0, 0, 255],
	"blueviolet": [138, 43, 226],
	"brown": [165, 42, 42],
	"burlywood": [222, 184, 135],
	"cadetblue": [95, 158, 160],
	"chartreuse": [127, 255, 0],
	"chocolate": [210, 105, 30],
	"coral": [255, 127, 80],
	"cornflowerblue": [100, 149, 237],
	"cornsilk": [255, 248, 220],
	"crimson": [220, 20, 60],
	"cyan": [0, 255, 255],
	"darkblue": [0, 0, 139],
	"darkcyan": [0, 139, 139],
	"darkgoldenrod": [184, 134, 11],
	"darkgray": [169, 169, 169],
	"darkgreen": [0, 100, 0],
	"darkgrey": [169, 169, 169],
	"darkkhaki": [189, 183, 107],
	"darkmagenta": [139, 0, 139],
	"darkolivegreen": [85, 107, 47],
	"darkorange": [255, 140, 0],
	"darkorchid": [153, 50, 204],
	"darkred": [139, 0, 0],
	"darksalmon": [233, 150, 122],
	"darkseagreen": [143, 188, 143],
	"darkslateblue": [72, 61, 139],
	"darkslategray": [47, 79, 79],
	"darkslategrey": [47, 79, 79],
	"darkturquoise": [0, 206, 209],
	"darkviolet": [148, 0, 211],
	"deeppink": [255, 20, 147],
	"deepskyblue": [0, 191, 255],
	"dimgray": [105, 105, 105],
	"dimgrey": [105, 105, 105],
	"dodgerblue": [30, 144, 255],
	"firebrick": [178, 34, 34],
	"floralwhite": [255, 250, 240],
	"forestgreen": [34, 139, 34],
	"fuchsia": [255, 0, 255],
	"gainsboro": [220, 220, 220],
	"ghostwhite": [248, 248, 255],
	"gold": [255, 215, 0],
	"goldenrod": [218, 165, 32],
	"gray": [128, 128, 128],
	"green": [0, 128, 0],
	"greenyellow": [173, 255, 47],
	"grey": [128, 128, 128],
	"honeydew": [240, 255, 240],
	"hotpink": [255, 105, 180],
	"indianred": [205, 92, 92],
	"indigo": [75, 0, 130],
	"ivory": [255, 255, 240],
	"khaki": [240, 230, 140],
	"lavender": [230, 230, 250],
	"lavenderblush": [255, 240, 245],
	"lawngreen": [124, 252, 0],
	"lemonchiffon": [255, 250, 205],
	"lightblue": [173, 216, 230],
	"lightcoral": [240, 128, 128],
	"lightcyan": [224, 255, 255],
	"lightgoldenrodyellow": [250, 250, 210],
	"lightgray": [211, 211, 211],
	"lightgreen": [144, 238, 144],
	"lightgrey": [211, 211, 211],
	"lightpink": [255, 182, 193],
	"lightsalmon": [255, 160, 122],
	"lightseagreen": [32, 178, 170],
	"lightskyblue": [135, 206, 250],
	"lightslategray": [119, 136, 153],
	"lightslategrey": [119, 136, 153],
	"lightsteelblue": [176, 196, 222],
	"lightyellow": [255, 255, 224],
	"lime": [0, 255, 0],
	"limegreen": [50, 205, 50],
	"linen": [250, 240, 230],
	"magenta": [255, 0, 255],
	"maroon": [128, 0, 0],
	"mediumaquamarine": [102, 205, 170],
	"mediumblue": [0, 0, 205],
	"mediumorchid": [186, 85, 211],
	"mediumpurple": [147, 112, 219],
	"mediumseagreen": [60, 179, 113],
	"mediumslateblue": [123, 104, 238],
	"mediumspringgreen": [0, 250, 154],
	"mediumturquoise": [72, 209, 204],
	"mediumvioletred": [199, 21, 133],
	"midnightblue": [25, 25, 112],
	"mintcream": [245, 255, 250],
	"mistyrose": [255, 228, 225],
	"moccasin": [255, 228, 181],
	"navajowhite": [255, 222, 173],
	"navy": [0, 0, 128],
	"oldlace": [253, 245, 230],
	"olive": [128, 128, 0],
	"olivedrab": [107, 142, 35],
	"orange": [255, 165, 0],
	"orangered": [255, 69, 0],
	"orchid": [218, 112, 214],
	"palegoldenrod": [238, 232, 170],
	"palegreen": [152, 251, 152],
	"paleturquoise": [175, 238, 238],
	"palevioletred": [219, 112, 147],
	"papayawhip": [255, 239, 213],
	"peachpuff": [255, 218, 185],
	"peru": [205, 133, 63],
	"pink": [255, 192, 203],
	"plum": [221, 160, 221],
	"powderblue": [176, 224, 230],
	"purple": [128, 0, 128],
	"rebeccapurple": [102, 51, 153],
	"red": [255, 0, 0],
	"rosybrown": [188, 143, 143],
	"royalblue": [65, 105, 225],
	"saddlebrown": [139, 69, 19],
	"salmon": [250, 128, 114],
	"sandybrown": [244, 164, 96],
	"seagreen": [46, 139, 87],
	"seashell": [255, 245, 238],
	"sienna": [160, 82, 45],
	"silver": [192, 192, 192],
	"skyblue": [135, 206, 235],
	"slateblue": [106, 90, 205],
	"slategray": [112, 128, 144],
	"slategrey": [112, 128, 144],
	"snow": [255, 250, 250],
	"springgreen": [0, 255, 127],
	"steelblue": [70, 130, 180],
	"tan": [210, 180, 140],
	"teal": [0, 128, 128],
	"thistle": [216, 191, 216],
	"tomato": [255, 99, 71],
	"turquoise": [64, 224, 208],
	"violet": [238, 130, 238],
	"wheat": [245, 222, 179],
	"white": [255, 255, 255],
	"whitesmoke": [245, 245, 245],
	"yellow": [255, 255, 0],
	"yellowgreen": [154, 205, 50]
};

/* MIT license */

var cssKeywords = colorName;

// NOTE: conversions should only return primitive values (i.e. arrays, or
//       values that give correct `typeof` results).
//       do not use box values types (i.e. Number(), String(), etc.)

var reverseKeywords = {};
for (var key in cssKeywords) {
	if (cssKeywords.hasOwnProperty(key)) {
		reverseKeywords[cssKeywords[key]] = key;
	}
}

var convert$1 = conversions$2.exports = {
	rgb: {channels: 3, labels: 'rgb'},
	hsl: {channels: 3, labels: 'hsl'},
	hsv: {channels: 3, labels: 'hsv'},
	hwb: {channels: 3, labels: 'hwb'},
	cmyk: {channels: 4, labels: 'cmyk'},
	xyz: {channels: 3, labels: 'xyz'},
	lab: {channels: 3, labels: 'lab'},
	lch: {channels: 3, labels: 'lch'},
	hex: {channels: 1, labels: ['hex']},
	keyword: {channels: 1, labels: ['keyword']},
	ansi16: {channels: 1, labels: ['ansi16']},
	ansi256: {channels: 1, labels: ['ansi256']},
	hcg: {channels: 3, labels: ['h', 'c', 'g']},
	apple: {channels: 3, labels: ['r16', 'g16', 'b16']},
	gray: {channels: 1, labels: ['gray']}
};

// hide .channels and .labels properties
for (var model in convert$1) {
	if (convert$1.hasOwnProperty(model)) {
		if (!('channels' in convert$1[model])) {
			throw new Error('missing channels property: ' + model);
		}

		if (!('labels' in convert$1[model])) {
			throw new Error('missing channel labels property: ' + model);
		}

		if (convert$1[model].labels.length !== convert$1[model].channels) {
			throw new Error('channel and label counts mismatch: ' + model);
		}

		var channels = convert$1[model].channels;
		var labels = convert$1[model].labels;
		delete convert$1[model].channels;
		delete convert$1[model].labels;
		Object.defineProperty(convert$1[model], 'channels', {value: channels});
		Object.defineProperty(convert$1[model], 'labels', {value: labels});
	}
}

convert$1.rgb.hsl = function (rgb) {
	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;
	var min = Math.min(r, g, b);
	var max = Math.max(r, g, b);
	var delta = max - min;
	var h;
	var s;
	var l;

	if (max === min) {
		h = 0;
	} else if (r === max) {
		h = (g - b) / delta;
	} else if (g === max) {
		h = 2 + (b - r) / delta;
	} else if (b === max) {
		h = 4 + (r - g) / delta;
	}

	h = Math.min(h * 60, 360);

	if (h < 0) {
		h += 360;
	}

	l = (min + max) / 2;

	if (max === min) {
		s = 0;
	} else if (l <= 0.5) {
		s = delta / (max + min);
	} else {
		s = delta / (2 - max - min);
	}

	return [h, s * 100, l * 100];
};

convert$1.rgb.hsv = function (rgb) {
	var rdif;
	var gdif;
	var bdif;
	var h;
	var s;

	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;
	var v = Math.max(r, g, b);
	var diff = v - Math.min(r, g, b);
	var diffc = function (c) {
		return (v - c) / 6 / diff + 1 / 2;
	};

	if (diff === 0) {
		h = s = 0;
	} else {
		s = diff / v;
		rdif = diffc(r);
		gdif = diffc(g);
		bdif = diffc(b);

		if (r === v) {
			h = bdif - gdif;
		} else if (g === v) {
			h = (1 / 3) + rdif - bdif;
		} else if (b === v) {
			h = (2 / 3) + gdif - rdif;
		}
		if (h < 0) {
			h += 1;
		} else if (h > 1) {
			h -= 1;
		}
	}

	return [
		h * 360,
		s * 100,
		v * 100
	];
};

convert$1.rgb.hwb = function (rgb) {
	var r = rgb[0];
	var g = rgb[1];
	var b = rgb[2];
	var h = convert$1.rgb.hsl(rgb)[0];
	var w = 1 / 255 * Math.min(r, Math.min(g, b));

	b = 1 - 1 / 255 * Math.max(r, Math.max(g, b));

	return [h, w * 100, b * 100];
};

convert$1.rgb.cmyk = function (rgb) {
	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;
	var c;
	var m;
	var y;
	var k;

	k = Math.min(1 - r, 1 - g, 1 - b);
	c = (1 - r - k) / (1 - k) || 0;
	m = (1 - g - k) / (1 - k) || 0;
	y = (1 - b - k) / (1 - k) || 0;

	return [c * 100, m * 100, y * 100, k * 100];
};

/**
 * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
 * */
function comparativeDistance(x, y) {
	return (
		Math.pow(x[0] - y[0], 2) +
		Math.pow(x[1] - y[1], 2) +
		Math.pow(x[2] - y[2], 2)
	);
}

convert$1.rgb.keyword = function (rgb) {
	var reversed = reverseKeywords[rgb];
	if (reversed) {
		return reversed;
	}

	var currentClosestDistance = Infinity;
	var currentClosestKeyword;

	for (var keyword in cssKeywords) {
		if (cssKeywords.hasOwnProperty(keyword)) {
			var value = cssKeywords[keyword];

			// Compute comparative distance
			var distance = comparativeDistance(rgb, value);

			// Check if its less, if so set as closest
			if (distance < currentClosestDistance) {
				currentClosestDistance = distance;
				currentClosestKeyword = keyword;
			}
		}
	}

	return currentClosestKeyword;
};

convert$1.keyword.rgb = function (keyword) {
	return cssKeywords[keyword];
};

convert$1.rgb.xyz = function (rgb) {
	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;

	// assume sRGB
	r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
	g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
	b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);

	var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
	var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
	var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);

	return [x * 100, y * 100, z * 100];
};

convert$1.rgb.lab = function (rgb) {
	var xyz = convert$1.rgb.xyz(rgb);
	var x = xyz[0];
	var y = xyz[1];
	var z = xyz[2];
	var l;
	var a;
	var b;

	x /= 95.047;
	y /= 100;
	z /= 108.883;

	x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
	y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
	z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);

	l = (116 * y) - 16;
	a = 500 * (x - y);
	b = 200 * (y - z);

	return [l, a, b];
};

convert$1.hsl.rgb = function (hsl) {
	var h = hsl[0] / 360;
	var s = hsl[1] / 100;
	var l = hsl[2] / 100;
	var t1;
	var t2;
	var t3;
	var rgb;
	var val;

	if (s === 0) {
		val = l * 255;
		return [val, val, val];
	}

	if (l < 0.5) {
		t2 = l * (1 + s);
	} else {
		t2 = l + s - l * s;
	}

	t1 = 2 * l - t2;

	rgb = [0, 0, 0];
	for (var i = 0; i < 3; i++) {
		t3 = h + 1 / 3 * -(i - 1);
		if (t3 < 0) {
			t3++;
		}
		if (t3 > 1) {
			t3--;
		}

		if (6 * t3 < 1) {
			val = t1 + (t2 - t1) * 6 * t3;
		} else if (2 * t3 < 1) {
			val = t2;
		} else if (3 * t3 < 2) {
			val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
		} else {
			val = t1;
		}

		rgb[i] = val * 255;
	}

	return rgb;
};

convert$1.hsl.hsv = function (hsl) {
	var h = hsl[0];
	var s = hsl[1] / 100;
	var l = hsl[2] / 100;
	var smin = s;
	var lmin = Math.max(l, 0.01);
	var sv;
	var v;

	l *= 2;
	s *= (l <= 1) ? l : 2 - l;
	smin *= lmin <= 1 ? lmin : 2 - lmin;
	v = (l + s) / 2;
	sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);

	return [h, sv * 100, v * 100];
};

convert$1.hsv.rgb = function (hsv) {
	var h = hsv[0] / 60;
	var s = hsv[1] / 100;
	var v = hsv[2] / 100;
	var hi = Math.floor(h) % 6;

	var f = h - Math.floor(h);
	var p = 255 * v * (1 - s);
	var q = 255 * v * (1 - (s * f));
	var t = 255 * v * (1 - (s * (1 - f)));
	v *= 255;

	switch (hi) {
		case 0:
			return [v, t, p];
		case 1:
			return [q, v, p];
		case 2:
			return [p, v, t];
		case 3:
			return [p, q, v];
		case 4:
			return [t, p, v];
		case 5:
			return [v, p, q];
	}
};

convert$1.hsv.hsl = function (hsv) {
	var h = hsv[0];
	var s = hsv[1] / 100;
	var v = hsv[2] / 100;
	var vmin = Math.max(v, 0.01);
	var lmin;
	var sl;
	var l;

	l = (2 - s) * v;
	lmin = (2 - s) * vmin;
	sl = s * vmin;
	sl /= (lmin <= 1) ? lmin : 2 - lmin;
	sl = sl || 0;
	l /= 2;

	return [h, sl * 100, l * 100];
};

// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
convert$1.hwb.rgb = function (hwb) {
	var h = hwb[0] / 360;
	var wh = hwb[1] / 100;
	var bl = hwb[2] / 100;
	var ratio = wh + bl;
	var i;
	var v;
	var f;
	var n;

	// wh + bl cant be > 1
	if (ratio > 1) {
		wh /= ratio;
		bl /= ratio;
	}

	i = Math.floor(6 * h);
	v = 1 - bl;
	f = 6 * h - i;

	if ((i & 0x01) !== 0) {
		f = 1 - f;
	}

	n = wh + f * (v - wh); // linear interpolation

	var r;
	var g;
	var b;
	switch (i) {
		default:
		case 6:
		case 0: r = v; g = n; b = wh; break;
		case 1: r = n; g = v; b = wh; break;
		case 2: r = wh; g = v; b = n; break;
		case 3: r = wh; g = n; b = v; break;
		case 4: r = n; g = wh; b = v; break;
		case 5: r = v; g = wh; b = n; break;
	}

	return [r * 255, g * 255, b * 255];
};

convert$1.cmyk.rgb = function (cmyk) {
	var c = cmyk[0] / 100;
	var m = cmyk[1] / 100;
	var y = cmyk[2] / 100;
	var k = cmyk[3] / 100;
	var r;
	var g;
	var b;

	r = 1 - Math.min(1, c * (1 - k) + k);
	g = 1 - Math.min(1, m * (1 - k) + k);
	b = 1 - Math.min(1, y * (1 - k) + k);

	return [r * 255, g * 255, b * 255];
};

convert$1.xyz.rgb = function (xyz) {
	var x = xyz[0] / 100;
	var y = xyz[1] / 100;
	var z = xyz[2] / 100;
	var r;
	var g;
	var b;

	r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
	g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
	b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);

	// assume sRGB
	r = r > 0.0031308
		? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
		: r * 12.92;

	g = g > 0.0031308
		? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
		: g * 12.92;

	b = b > 0.0031308
		? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
		: b * 12.92;

	r = Math.min(Math.max(0, r), 1);
	g = Math.min(Math.max(0, g), 1);
	b = Math.min(Math.max(0, b), 1);

	return [r * 255, g * 255, b * 255];
};

convert$1.xyz.lab = function (xyz) {
	var x = xyz[0];
	var y = xyz[1];
	var z = xyz[2];
	var l;
	var a;
	var b;

	x /= 95.047;
	y /= 100;
	z /= 108.883;

	x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
	y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
	z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);

	l = (116 * y) - 16;
	a = 500 * (x - y);
	b = 200 * (y - z);

	return [l, a, b];
};

convert$1.lab.xyz = function (lab) {
	var l = lab[0];
	var a = lab[1];
	var b = lab[2];
	var x;
	var y;
	var z;

	y = (l + 16) / 116;
	x = a / 500 + y;
	z = y - b / 200;

	var y2 = Math.pow(y, 3);
	var x2 = Math.pow(x, 3);
	var z2 = Math.pow(z, 3);
	y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;
	x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;
	z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;

	x *= 95.047;
	y *= 100;
	z *= 108.883;

	return [x, y, z];
};

convert$1.lab.lch = function (lab) {
	var l = lab[0];
	var a = lab[1];
	var b = lab[2];
	var hr;
	var h;
	var c;

	hr = Math.atan2(b, a);
	h = hr * 360 / 2 / Math.PI;

	if (h < 0) {
		h += 360;
	}

	c = Math.sqrt(a * a + b * b);

	return [l, c, h];
};

convert$1.lch.lab = function (lch) {
	var l = lch[0];
	var c = lch[1];
	var h = lch[2];
	var a;
	var b;
	var hr;

	hr = h / 360 * 2 * Math.PI;
	a = c * Math.cos(hr);
	b = c * Math.sin(hr);

	return [l, a, b];
};

convert$1.rgb.ansi16 = function (args) {
	var r = args[0];
	var g = args[1];
	var b = args[2];
	var value = 1 in arguments ? arguments[1] : convert$1.rgb.hsv(args)[2]; // hsv -> ansi16 optimization

	value = Math.round(value / 50);

	if (value === 0) {
		return 30;
	}

	var ansi = 30
		+ ((Math.round(b / 255) << 2)
		| (Math.round(g / 255) << 1)
		| Math.round(r / 255));

	if (value === 2) {
		ansi += 60;
	}

	return ansi;
};

convert$1.hsv.ansi16 = function (args) {
	// optimization here; we already know the value and don't need to get
	// it converted for us.
	return convert$1.rgb.ansi16(convert$1.hsv.rgb(args), args[2]);
};

convert$1.rgb.ansi256 = function (args) {
	var r = args[0];
	var g = args[1];
	var b = args[2];

	// we use the extended greyscale palette here, with the exception of
	// black and white. normal palette only has 4 greyscale shades.
	if (r === g && g === b) {
		if (r < 8) {
			return 16;
		}

		if (r > 248) {
			return 231;
		}

		return Math.round(((r - 8) / 247) * 24) + 232;
	}

	var ansi = 16
		+ (36 * Math.round(r / 255 * 5))
		+ (6 * Math.round(g / 255 * 5))
		+ Math.round(b / 255 * 5);

	return ansi;
};

convert$1.ansi16.rgb = function (args) {
	var color = args % 10;

	// handle greyscale
	if (color === 0 || color === 7) {
		if (args > 50) {
			color += 3.5;
		}

		color = color / 10.5 * 255;

		return [color, color, color];
	}

	var mult = (~~(args > 50) + 1) * 0.5;
	var r = ((color & 1) * mult) * 255;
	var g = (((color >> 1) & 1) * mult) * 255;
	var b = (((color >> 2) & 1) * mult) * 255;

	return [r, g, b];
};

convert$1.ansi256.rgb = function (args) {
	// handle greyscale
	if (args >= 232) {
		var c = (args - 232) * 10 + 8;
		return [c, c, c];
	}

	args -= 16;

	var rem;
	var r = Math.floor(args / 36) / 5 * 255;
	var g = Math.floor((rem = args % 36) / 6) / 5 * 255;
	var b = (rem % 6) / 5 * 255;

	return [r, g, b];
};

convert$1.rgb.hex = function (args) {
	var integer = ((Math.round(args[0]) & 0xFF) << 16)
		+ ((Math.round(args[1]) & 0xFF) << 8)
		+ (Math.round(args[2]) & 0xFF);

	var string = integer.toString(16).toUpperCase();
	return '000000'.substring(string.length) + string;
};

convert$1.hex.rgb = function (args) {
	var match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
	if (!match) {
		return [0, 0, 0];
	}

	var colorString = match[0];

	if (match[0].length === 3) {
		colorString = colorString.split('').map(function (char) {
			return char + char;
		}).join('');
	}

	var integer = parseInt(colorString, 16);
	var r = (integer >> 16) & 0xFF;
	var g = (integer >> 8) & 0xFF;
	var b = integer & 0xFF;

	return [r, g, b];
};

convert$1.rgb.hcg = function (rgb) {
	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;
	var max = Math.max(Math.max(r, g), b);
	var min = Math.min(Math.min(r, g), b);
	var chroma = (max - min);
	var grayscale;
	var hue;

	if (chroma < 1) {
		grayscale = min / (1 - chroma);
	} else {
		grayscale = 0;
	}

	if (chroma <= 0) {
		hue = 0;
	} else
	if (max === r) {
		hue = ((g - b) / chroma) % 6;
	} else
	if (max === g) {
		hue = 2 + (b - r) / chroma;
	} else {
		hue = 4 + (r - g) / chroma + 4;
	}

	hue /= 6;
	hue %= 1;

	return [hue * 360, chroma * 100, grayscale * 100];
};

convert$1.hsl.hcg = function (hsl) {
	var s = hsl[1] / 100;
	var l = hsl[2] / 100;
	var c = 1;
	var f = 0;

	if (l < 0.5) {
		c = 2.0 * s * l;
	} else {
		c = 2.0 * s * (1.0 - l);
	}

	if (c < 1.0) {
		f = (l - 0.5 * c) / (1.0 - c);
	}

	return [hsl[0], c * 100, f * 100];
};

convert$1.hsv.hcg = function (hsv) {
	var s = hsv[1] / 100;
	var v = hsv[2] / 100;

	var c = s * v;
	var f = 0;

	if (c < 1.0) {
		f = (v - c) / (1 - c);
	}

	return [hsv[0], c * 100, f * 100];
};

convert$1.hcg.rgb = function (hcg) {
	var h = hcg[0] / 360;
	var c = hcg[1] / 100;
	var g = hcg[2] / 100;

	if (c === 0.0) {
		return [g * 255, g * 255, g * 255];
	}

	var pure = [0, 0, 0];
	var hi = (h % 1) * 6;
	var v = hi % 1;
	var w = 1 - v;
	var mg = 0;

	switch (Math.floor(hi)) {
		case 0:
			pure[0] = 1; pure[1] = v; pure[2] = 0; break;
		case 1:
			pure[0] = w; pure[1] = 1; pure[2] = 0; break;
		case 2:
			pure[0] = 0; pure[1] = 1; pure[2] = v; break;
		case 3:
			pure[0] = 0; pure[1] = w; pure[2] = 1; break;
		case 4:
			pure[0] = v; pure[1] = 0; pure[2] = 1; break;
		default:
			pure[0] = 1; pure[1] = 0; pure[2] = w;
	}

	mg = (1.0 - c) * g;

	return [
		(c * pure[0] + mg) * 255,
		(c * pure[1] + mg) * 255,
		(c * pure[2] + mg) * 255
	];
};

convert$1.hcg.hsv = function (hcg) {
	var c = hcg[1] / 100;
	var g = hcg[2] / 100;

	var v = c + g * (1.0 - c);
	var f = 0;

	if (v > 0.0) {
		f = c / v;
	}

	return [hcg[0], f * 100, v * 100];
};

convert$1.hcg.hsl = function (hcg) {
	var c = hcg[1] / 100;
	var g = hcg[2] / 100;

	var l = g * (1.0 - c) + 0.5 * c;
	var s = 0;

	if (l > 0.0 && l < 0.5) {
		s = c / (2 * l);
	} else
	if (l >= 0.5 && l < 1.0) {
		s = c / (2 * (1 - l));
	}

	return [hcg[0], s * 100, l * 100];
};

convert$1.hcg.hwb = function (hcg) {
	var c = hcg[1] / 100;
	var g = hcg[2] / 100;
	var v = c + g * (1.0 - c);
	return [hcg[0], (v - c) * 100, (1 - v) * 100];
};

convert$1.hwb.hcg = function (hwb) {
	var w = hwb[1] / 100;
	var b = hwb[2] / 100;
	var v = 1 - b;
	var c = v - w;
	var g = 0;

	if (c < 1) {
		g = (v - c) / (1 - c);
	}

	return [hwb[0], c * 100, g * 100];
};

convert$1.apple.rgb = function (apple) {
	return [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255];
};

convert$1.rgb.apple = function (rgb) {
	return [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535];
};

convert$1.gray.rgb = function (args) {
	return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255];
};

convert$1.gray.hsl = convert$1.gray.hsv = function (args) {
	return [0, 0, args[0]];
};

convert$1.gray.hwb = function (gray) {
	return [0, 100, gray[0]];
};

convert$1.gray.cmyk = function (gray) {
	return [0, 0, 0, gray[0]];
};

convert$1.gray.lab = function (gray) {
	return [gray[0], 0, 0];
};

convert$1.gray.hex = function (gray) {
	var val = Math.round(gray[0] / 100 * 255) & 0xFF;
	var integer = (val << 16) + (val << 8) + val;

	var string = integer.toString(16).toUpperCase();
	return '000000'.substring(string.length) + string;
};

convert$1.rgb.gray = function (rgb) {
	var val = (rgb[0] + rgb[1] + rgb[2]) / 3;
	return [val / 255 * 100];
};

var conversions$1 = conversions$2.exports;

/*
	this function routes a model to all other models.

	all functions that are routed have a property `.conversion` attached
	to the returned synthetic function. This property is an array
	of strings, each with the steps in between the 'from' and 'to'
	color models (inclusive).

	conversions that are not possible simply are not included.
*/

function buildGraph() {
	var graph = {};
	// https://jsperf.com/object-keys-vs-for-in-with-closure/3
	var models = Object.keys(conversions$1);

	for (var len = models.length, i = 0; i < len; i++) {
		graph[models[i]] = {
			// http://jsperf.com/1-vs-infinity
			// micro-opt, but this is simple.
			distance: -1,
			parent: null
		};
	}

	return graph;
}

// https://en.wikipedia.org/wiki/Breadth-first_search
function deriveBFS(fromModel) {
	var graph = buildGraph();
	var queue = [fromModel]; // unshift -> queue -> pop

	graph[fromModel].distance = 0;

	while (queue.length) {
		var current = queue.pop();
		var adjacents = Object.keys(conversions$1[current]);

		for (var len = adjacents.length, i = 0; i < len; i++) {
			var adjacent = adjacents[i];
			var node = graph[adjacent];

			if (node.distance === -1) {
				node.distance = graph[current].distance + 1;
				node.parent = current;
				queue.unshift(adjacent);
			}
		}
	}

	return graph;
}

function link(from, to) {
	return function (args) {
		return to(from(args));
	};
}

function wrapConversion(toModel, graph) {
	var path = [graph[toModel].parent, toModel];
	var fn = conversions$1[graph[toModel].parent][toModel];

	var cur = graph[toModel].parent;
	while (graph[cur].parent) {
		path.unshift(graph[cur].parent);
		fn = link(conversions$1[graph[cur].parent][cur], fn);
		cur = graph[cur].parent;
	}

	fn.conversion = path;
	return fn;
}

var route$1 = function (fromModel) {
	var graph = deriveBFS(fromModel);
	var conversion = {};

	var models = Object.keys(graph);
	for (var len = models.length, i = 0; i < len; i++) {
		var toModel = models[i];
		var node = graph[toModel];

		if (node.parent === null) {
			// no possible conversion, or this node is the source model.
			continue;
		}

		conversion[toModel] = wrapConversion(toModel, graph);
	}

	return conversion;
};

var conversions = conversions$2.exports;
var route = route$1;

var convert = {};

var models = Object.keys(conversions);

function wrapRaw(fn) {
	var wrappedFn = function (args) {
		if (args === undefined || args === null) {
			return args;
		}

		if (arguments.length > 1) {
			args = Array.prototype.slice.call(arguments);
		}

		return fn(args);
	};

	// preserve .conversion property if there is one
	if ('conversion' in fn) {
		wrappedFn.conversion = fn.conversion;
	}

	return wrappedFn;
}

function wrapRounded(fn) {
	var wrappedFn = function (args) {
		if (args === undefined || args === null) {
			return args;
		}

		if (arguments.length > 1) {
			args = Array.prototype.slice.call(arguments);
		}

		var result = fn(args);

		// we're assuming the result is an array here.
		// see notice in conversions.js; don't use box types
		// in conversion functions.
		if (typeof result === 'object') {
			for (var len = result.length, i = 0; i < len; i++) {
				result[i] = Math.round(result[i]);
			}
		}

		return result;
	};

	// preserve .conversion property if there is one
	if ('conversion' in fn) {
		wrappedFn.conversion = fn.conversion;
	}

	return wrappedFn;
}

models.forEach(function (fromModel) {
	convert[fromModel] = {};

	Object.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels});
	Object.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels});

	var routes = route(fromModel);
	var routeModels = Object.keys(routes);

	routeModels.forEach(function (toModel) {
		var fn = routes[toModel];

		convert[fromModel][toModel] = wrapRounded(fn);
		convert[fromModel][toModel].raw = wrapRaw(fn);
	});
});

var colorConvert = convert;

(function (module) {
const colorConvert$1 = colorConvert;

const wrapAnsi16 = (fn, offset) => function () {
	const code = fn.apply(colorConvert$1, arguments);
	return `\u001B[${code + offset}m`;
};

const wrapAnsi256 = (fn, offset) => function () {
	const code = fn.apply(colorConvert$1, arguments);
	return `\u001B[${38 + offset};5;${code}m`;
};

const wrapAnsi16m = (fn, offset) => function () {
	const rgb = fn.apply(colorConvert$1, arguments);
	return `\u001B[${38 + offset};2;${rgb[0]};${rgb[1]};${rgb[2]}m`;
};

function assembleStyles() {
	const codes = new Map();
	const styles = {
		modifier: {
			reset: [0, 0],
			// 21 isn't widely supported and 22 does the same thing
			bold: [1, 22],
			dim: [2, 22],
			italic: [3, 23],
			underline: [4, 24],
			inverse: [7, 27],
			hidden: [8, 28],
			strikethrough: [9, 29]
		},
		color: {
			black: [30, 39],
			red: [31, 39],
			green: [32, 39],
			yellow: [33, 39],
			blue: [34, 39],
			magenta: [35, 39],
			cyan: [36, 39],
			white: [37, 39],
			gray: [90, 39],

			// Bright color
			redBright: [91, 39],
			greenBright: [92, 39],
			yellowBright: [93, 39],
			blueBright: [94, 39],
			magentaBright: [95, 39],
			cyanBright: [96, 39],
			whiteBright: [97, 39]
		},
		bgColor: {
			bgBlack: [40, 49],
			bgRed: [41, 49],
			bgGreen: [42, 49],
			bgYellow: [43, 49],
			bgBlue: [44, 49],
			bgMagenta: [45, 49],
			bgCyan: [46, 49],
			bgWhite: [47, 49],

			// Bright color
			bgBlackBright: [100, 49],
			bgRedBright: [101, 49],
			bgGreenBright: [102, 49],
			bgYellowBright: [103, 49],
			bgBlueBright: [104, 49],
			bgMagentaBright: [105, 49],
			bgCyanBright: [106, 49],
			bgWhiteBright: [107, 49]
		}
	};

	// Fix humans
	styles.color.grey = styles.color.gray;

	for (const groupName of Object.keys(styles)) {
		const group = styles[groupName];

		for (const styleName of Object.keys(group)) {
			const style = group[styleName];

			styles[styleName] = {
				open: `\u001B[${style[0]}m`,
				close: `\u001B[${style[1]}m`
			};

			group[styleName] = styles[styleName];

			codes.set(style[0], style[1]);
		}

		Object.defineProperty(styles, groupName, {
			value: group,
			enumerable: false
		});

		Object.defineProperty(styles, 'codes', {
			value: codes,
			enumerable: false
		});
	}

	const ansi2ansi = n => n;
	const rgb2rgb = (r, g, b) => [r, g, b];

	styles.color.close = '\u001B[39m';
	styles.bgColor.close = '\u001B[49m';

	styles.color.ansi = {
		ansi: wrapAnsi16(ansi2ansi, 0)
	};
	styles.color.ansi256 = {
		ansi256: wrapAnsi256(ansi2ansi, 0)
	};
	styles.color.ansi16m = {
		rgb: wrapAnsi16m(rgb2rgb, 0)
	};

	styles.bgColor.ansi = {
		ansi: wrapAnsi16(ansi2ansi, 10)
	};
	styles.bgColor.ansi256 = {
		ansi256: wrapAnsi256(ansi2ansi, 10)
	};
	styles.bgColor.ansi16m = {
		rgb: wrapAnsi16m(rgb2rgb, 10)
	};

	for (let key of Object.keys(colorConvert$1)) {
		if (typeof colorConvert$1[key] !== 'object') {
			continue;
		}

		const suite = colorConvert$1[key];

		if (key === 'ansi16') {
			key = 'ansi';
		}

		if ('ansi16' in suite) {
			styles.color.ansi[key] = wrapAnsi16(suite.ansi16, 0);
			styles.bgColor.ansi[key] = wrapAnsi16(suite.ansi16, 10);
		}

		if ('ansi256' in suite) {
			styles.color.ansi256[key] = wrapAnsi256(suite.ansi256, 0);
			styles.bgColor.ansi256[key] = wrapAnsi256(suite.ansi256, 10);
		}

		if ('rgb' in suite) {
			styles.color.ansi16m[key] = wrapAnsi16m(suite.rgb, 0);
			styles.bgColor.ansi16m[key] = wrapAnsi16m(suite.rgb, 10);
		}
	}

	return styles;
}

// Make the export immutable
Object.defineProperty(module, 'exports', {
	enumerable: true,
	get: assembleStyles
});
}(ansiStyles));

var hasFlag$1 = (flag, argv) => {
	argv = argv || process.argv;
	const prefix = flag.startsWith('-') ? '' : (flag.length === 1 ? '-' : '--');
	const pos = argv.indexOf(prefix + flag);
	const terminatorPos = argv.indexOf('--');
	return pos !== -1 && (terminatorPos === -1 ? true : pos < terminatorPos);
};

const os$2 = require$$0__default$1;
const hasFlag = hasFlag$1;

const env = process.env;

let forceColor;
if (hasFlag('no-color') ||
	hasFlag('no-colors') ||
	hasFlag('color=false')) {
	forceColor = false;
} else if (hasFlag('color') ||
	hasFlag('colors') ||
	hasFlag('color=true') ||
	hasFlag('color=always')) {
	forceColor = true;
}
if ('FORCE_COLOR' in env) {
	forceColor = env.FORCE_COLOR.length === 0 || parseInt(env.FORCE_COLOR, 10) !== 0;
}

function translateLevel(level) {
	if (level === 0) {
		return false;
	}

	return {
		level,
		hasBasic: true,
		has256: level >= 2,
		has16m: level >= 3
	};
}

function supportsColor(stream) {
	if (forceColor === false) {
		return 0;
	}

	if (hasFlag('color=16m') ||
		hasFlag('color=full') ||
		hasFlag('color=truecolor')) {
		return 3;
	}

	if (hasFlag('color=256')) {
		return 2;
	}

	if (stream && !stream.isTTY && forceColor !== true) {
		return 0;
	}

	const min = forceColor ? 1 : 0;

	if (process.platform === 'win32') {
		// Node.js 7.5.0 is the first version of Node.js to include a patch to
		// libuv that enables 256 color output on Windows. Anything earlier and it
		// won't work. However, here we target Node.js 8 at minimum as it is an LTS
		// release, and Node.js 7 is not. Windows 10 build 10586 is the first Windows
		// release that supports 256 colors. Windows 10 build 14931 is the first release
		// that supports 16m/TrueColor.
		const osRelease = os$2.release().split('.');
		if (
			Number(process.versions.node.split('.')[0]) >= 8 &&
			Number(osRelease[0]) >= 10 &&
			Number(osRelease[2]) >= 10586
		) {
			return Number(osRelease[2]) >= 14931 ? 3 : 2;
		}

		return 1;
	}

	if ('CI' in env) {
		if (['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI'].some(sign => sign in env) || env.CI_NAME === 'codeship') {
			return 1;
		}

		return min;
	}

	if ('TEAMCITY_VERSION' in env) {
		return /^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env.TEAMCITY_VERSION) ? 1 : 0;
	}

	if (env.COLORTERM === 'truecolor') {
		return 3;
	}

	if ('TERM_PROGRAM' in env) {
		const version = parseInt((env.TERM_PROGRAM_VERSION || '').split('.')[0], 10);

		switch (env.TERM_PROGRAM) {
			case 'iTerm.app':
				return version >= 3 ? 3 : 2;
			case 'Apple_Terminal':
				return 2;
			// No default
		}
	}

	if (/-256(color)?$/i.test(env.TERM)) {
		return 2;
	}

	if (/^screen|^xterm|^vt100|^vt220|^rxvt|color|ansi|cygwin|linux/i.test(env.TERM)) {
		return 1;
	}

	if ('COLORTERM' in env) {
		return 1;
	}

	if (env.TERM === 'dumb') {
		return min;
	}

	return min;
}

function getSupportLevel(stream) {
	const level = supportsColor(stream);
	return translateLevel(level);
}

var supportsColor_1 = {
	supportsColor: getSupportLevel,
	stdout: getSupportLevel(process.stdout),
	stderr: getSupportLevel(process.stderr)
};

const TEMPLATE_REGEX = /(?:\\(u[a-f\d]{4}|x[a-f\d]{2}|.))|(?:\{(~)?(\w+(?:\([^)]*\))?(?:\.\w+(?:\([^)]*\))?)*)(?:[ \t]|(?=\r?\n)))|(\})|((?:.|[\r\n\f])+?)/gi;
const STYLE_REGEX = /(?:^|\.)(\w+)(?:\(([^)]*)\))?/g;
const STRING_REGEX = /^(['"])((?:\\.|(?!\1)[^\\])*)\1$/;
const ESCAPE_REGEX = /\\(u[a-f\d]{4}|x[a-f\d]{2}|.)|([^\\])/gi;

const ESCAPES = new Map([
	['n', '\n'],
	['r', '\r'],
	['t', '\t'],
	['b', '\b'],
	['f', '\f'],
	['v', '\v'],
	['0', '\0'],
	['\\', '\\'],
	['e', '\u001B'],
	['a', '\u0007']
]);

function unescape$1(c) {
	if ((c[0] === 'u' && c.length === 5) || (c[0] === 'x' && c.length === 3)) {
		return String.fromCharCode(parseInt(c.slice(1), 16));
	}

	return ESCAPES.get(c) || c;
}

function parseArguments(name, args) {
	const results = [];
	const chunks = args.trim().split(/\s*,\s*/g);
	let matches;

	for (const chunk of chunks) {
		if (!isNaN(chunk)) {
			results.push(Number(chunk));
		} else if ((matches = chunk.match(STRING_REGEX))) {
			results.push(matches[2].replace(ESCAPE_REGEX, (m, escape, chr) => escape ? unescape$1(escape) : chr));
		} else {
			throw new Error(`Invalid Chalk template style argument: ${chunk} (in style '${name}')`);
		}
	}

	return results;
}

function parseStyle(style) {
	STYLE_REGEX.lastIndex = 0;

	const results = [];
	let matches;

	while ((matches = STYLE_REGEX.exec(style)) !== null) {
		const name = matches[1];

		if (matches[2]) {
			const args = parseArguments(name, matches[2]);
			results.push([name].concat(args));
		} else {
			results.push([name]);
		}
	}

	return results;
}

function buildStyle(chalk, styles) {
	const enabled = {};

	for (const layer of styles) {
		for (const style of layer.styles) {
			enabled[style[0]] = layer.inverse ? null : style.slice(1);
		}
	}

	let current = chalk;
	for (const styleName of Object.keys(enabled)) {
		if (Array.isArray(enabled[styleName])) {
			if (!(styleName in current)) {
				throw new Error(`Unknown Chalk style: ${styleName}`);
			}

			if (enabled[styleName].length > 0) {
				current = current[styleName].apply(current, enabled[styleName]);
			} else {
				current = current[styleName];
			}
		}
	}

	return current;
}

var templates = (chalk, tmp) => {
	const styles = [];
	const chunks = [];
	let chunk = [];

	// eslint-disable-next-line max-params
	tmp.replace(TEMPLATE_REGEX, (m, escapeChar, inverse, style, close, chr) => {
		if (escapeChar) {
			chunk.push(unescape$1(escapeChar));
		} else if (style) {
			const str = chunk.join('');
			chunk = [];
			chunks.push(styles.length === 0 ? str : buildStyle(chalk, styles)(str));
			styles.push({inverse, styles: parseStyle(style)});
		} else if (close) {
			if (styles.length === 0) {
				throw new Error('Found extraneous } in Chalk template literal');
			}

			chunks.push(buildStyle(chalk, styles)(chunk.join('')));
			chunk = [];
			styles.pop();
		} else {
			chunk.push(chr);
		}
	});

	chunks.push(chunk.join(''));

	if (styles.length > 0) {
		const errMsg = `Chalk template literal is missing ${styles.length} closing bracket${styles.length === 1 ? '' : 's'} (\`}\`)`;
		throw new Error(errMsg);
	}

	return chunks.join('');
};

(function (module) {
const escapeStringRegexp$1 = escapeStringRegexp;
const ansiStyles$1 = ansiStyles.exports;
const stdoutColor = supportsColor_1.stdout;

const template = templates;

const isSimpleWindowsTerm = process.platform === 'win32' && !(process.env.TERM || '').toLowerCase().startsWith('xterm');

// `supportsColor.level` → `ansiStyles.color[name]` mapping
const levelMapping = ['ansi', 'ansi', 'ansi256', 'ansi16m'];

// `color-convert` models to exclude from the Chalk API due to conflicts and such
const skipModels = new Set(['gray']);

const styles = Object.create(null);

function applyOptions(obj, options) {
	options = options || {};

	// Detect level if not set manually
	const scLevel = stdoutColor ? stdoutColor.level : 0;
	obj.level = options.level === undefined ? scLevel : options.level;
	obj.enabled = 'enabled' in options ? options.enabled : obj.level > 0;
}

function Chalk(options) {
	// We check for this.template here since calling `chalk.constructor()`
	// by itself will have a `this` of a previously constructed chalk object
	if (!this || !(this instanceof Chalk) || this.template) {
		const chalk = {};
		applyOptions(chalk, options);

		chalk.template = function () {
			const args = [].slice.call(arguments);
			return chalkTag.apply(null, [chalk.template].concat(args));
		};

		Object.setPrototypeOf(chalk, Chalk.prototype);
		Object.setPrototypeOf(chalk.template, chalk);

		chalk.template.constructor = Chalk;

		return chalk.template;
	}

	applyOptions(this, options);
}

// Use bright blue on Windows as the normal blue color is illegible
if (isSimpleWindowsTerm) {
	ansiStyles$1.blue.open = '\u001B[94m';
}

for (const key of Object.keys(ansiStyles$1)) {
	ansiStyles$1[key].closeRe = new RegExp(escapeStringRegexp$1(ansiStyles$1[key].close), 'g');

	styles[key] = {
		get() {
			const codes = ansiStyles$1[key];
			return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, key);
		}
	};
}

styles.visible = {
	get() {
		return build.call(this, this._styles || [], true, 'visible');
	}
};

ansiStyles$1.color.closeRe = new RegExp(escapeStringRegexp$1(ansiStyles$1.color.close), 'g');
for (const model of Object.keys(ansiStyles$1.color.ansi)) {
	if (skipModels.has(model)) {
		continue;
	}

	styles[model] = {
		get() {
			const level = this.level;
			return function () {
				const open = ansiStyles$1.color[levelMapping[level]][model].apply(null, arguments);
				const codes = {
					open,
					close: ansiStyles$1.color.close,
					closeRe: ansiStyles$1.color.closeRe
				};
				return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, model);
			};
		}
	};
}

ansiStyles$1.bgColor.closeRe = new RegExp(escapeStringRegexp$1(ansiStyles$1.bgColor.close), 'g');
for (const model of Object.keys(ansiStyles$1.bgColor.ansi)) {
	if (skipModels.has(model)) {
		continue;
	}

	const bgModel = 'bg' + model[0].toUpperCase() + model.slice(1);
	styles[bgModel] = {
		get() {
			const level = this.level;
			return function () {
				const open = ansiStyles$1.bgColor[levelMapping[level]][model].apply(null, arguments);
				const codes = {
					open,
					close: ansiStyles$1.bgColor.close,
					closeRe: ansiStyles$1.bgColor.closeRe
				};
				return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, model);
			};
		}
	};
}

const proto = Object.defineProperties(() => {}, styles);

function build(_styles, _empty, key) {
	const builder = function () {
		return applyStyle.apply(builder, arguments);
	};

	builder._styles = _styles;
	builder._empty = _empty;

	const self = this;

	Object.defineProperty(builder, 'level', {
		enumerable: true,
		get() {
			return self.level;
		},
		set(level) {
			self.level = level;
		}
	});

	Object.defineProperty(builder, 'enabled', {
		enumerable: true,
		get() {
			return self.enabled;
		},
		set(enabled) {
			self.enabled = enabled;
		}
	});

	// See below for fix regarding invisible grey/dim combination on Windows
	builder.hasGrey = this.hasGrey || key === 'gray' || key === 'grey';

	// `__proto__` is used because we must return a function, but there is
	// no way to create a function with a different prototype
	builder.__proto__ = proto; // eslint-disable-line no-proto

	return builder;
}

function applyStyle() {
	// Support varags, but simply cast to string in case there's only one arg
	const args = arguments;
	const argsLen = args.length;
	let str = String(arguments[0]);

	if (argsLen === 0) {
		return '';
	}

	if (argsLen > 1) {
		// Don't slice `arguments`, it prevents V8 optimizations
		for (let a = 1; a < argsLen; a++) {
			str += ' ' + args[a];
		}
	}

	if (!this.enabled || this.level <= 0 || !str) {
		return this._empty ? '' : str;
	}

	// Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
	// see https://github.com/chalk/chalk/issues/58
	// If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
	const originalDim = ansiStyles$1.dim.open;
	if (isSimpleWindowsTerm && this.hasGrey) {
		ansiStyles$1.dim.open = '';
	}

	for (const code of this._styles.slice().reverse()) {
		// Replace any instances already present with a re-opening code
		// otherwise only the part of the string until said closing code
		// will be colored, and the rest will simply be 'plain'.
		str = code.open + str.replace(code.closeRe, code.open) + code.close;

		// Close the styling before a linebreak and reopen
		// after next line to fix a bleed issue on macOS
		// https://github.com/chalk/chalk/pull/92
		str = str.replace(/\r?\n/g, `${code.close}$&${code.open}`);
	}

	// Reset the original `dim` if we changed it to work around the Windows dimmed gray issue
	ansiStyles$1.dim.open = originalDim;

	return str;
}

function chalkTag(chalk, strings) {
	if (!Array.isArray(strings)) {
		// If chalk() was called by itself or with a string,
		// return the string itself as a string.
		return [].slice.call(arguments, 1).join(' ');
	}

	const args = [].slice.call(arguments, 2);
	const parts = [strings.raw[0]];

	for (let i = 1; i < strings.length; i++) {
		parts.push(String(args[i - 1]).replace(/[{}\\]/g, '\\$&'));
		parts.push(String(strings.raw[i]));
	}

	return template(chalk, parts.join(''));
}

Object.defineProperties(Chalk.prototype, styles);

module.exports = Chalk(); // eslint-disable-line new-cap
module.exports.supportsColor = stdoutColor;
module.exports.default = module.exports; // For TypeScript
}(chalk$1));

var shellQuote$1 = {};

shellQuote$1.quote = function (xs) {
    return xs.map(function (s) {
        if (s && typeof s === 'object') {
            return s.op.replace(/(.)/g, '\\$1');
        }
        else if (/["\s]/.test(s) && !/'/.test(s)) {
            return "'" + s.replace(/(['\\])/g, '\\$1') + "'";
        }
        else if (/["'\s]/.test(s)) {
            return '"' + s.replace(/(["\\$`!])/g, '\\$1') + '"';
        }
        else {
            return String(s).replace(/([A-z]:)?([#!"$&'()*,:;<=>?@\[\\\]^`{|}])/g, '$1\\$2');
        }
    }).join(' ');
};

// '<(' is process substitution operator and
// can be parsed the same as control operator
var CONTROL = '(?:' + [
    '\\|\\|', '\\&\\&', ';;', '\\|\\&', '\\<\\(', '>>', '>\\&', '[&;()|<>]'
].join('|') + ')';
var META = '|&;()<> \\t';
var BAREWORD = '(\\\\[\'"' + META + ']|[^\\s\'"' + META + '])+';
var SINGLE_QUOTE = '"((\\\\"|[^"])*?)"';
var DOUBLE_QUOTE = '\'((\\\\\'|[^\'])*?)\'';

var TOKEN = '';
for (var i = 0; i < 4; i++) {
    TOKEN += (Math.pow(16,8)*Math.random()).toString(16);
}

shellQuote$1.parse = function (s, env, opts) {
    var mapped = parse$2(s, env, opts);
    if (typeof env !== 'function') return mapped;
    return mapped.reduce(function (acc, s) {
        if (typeof s === 'object') return acc.concat(s);
        var xs = s.split(RegExp('(' + TOKEN + '.*?' + TOKEN + ')', 'g'));
        if (xs.length === 1) return acc.concat(xs[0]);
        return acc.concat(xs.filter(Boolean).map(function (x) {
            if (RegExp('^' + TOKEN).test(x)) {
                return JSON.parse(x.split(TOKEN)[1]);
            }
            else return x;
        }));
    }, []);
};

function parse$2 (s, env, opts) {
    var chunker = new RegExp([
        '(' + CONTROL + ')', // control chars
        '(' + BAREWORD + '|' + SINGLE_QUOTE + '|' + DOUBLE_QUOTE + ')*'
    ].join('|'), 'g');
    var match = s.match(chunker).filter(Boolean);
    var commented = false;

    if (!match) return [];
    if (!env) env = {};
    if (!opts) opts = {};
    return match.map(function (s, j) {
        if (commented) {
            return;
        }
        if (RegExp('^' + CONTROL + '$').test(s)) {
            return { op: s };
        }

        // Hand-written scanner/parser for Bash quoting rules:
        //
        //  1. inside single quotes, all characters are printed literally.
        //  2. inside double quotes, all characters are printed literally
        //     except variables prefixed by '$' and backslashes followed by
        //     either a double quote or another backslash.
        //  3. outside of any quotes, backslashes are treated as escape
        //     characters and not printed (unless they are themselves escaped)
        //  4. quote context can switch mid-token if there is no whitespace
        //     between the two quote contexts (e.g. all'one'"token" parses as
        //     "allonetoken")
        var SQ = "'";
        var DQ = '"';
        var DS = '$';
        var BS = opts.escape || '\\';
        var quote = false;
        var esc = false;
        var out = '';
        var isGlob = false;

        for (var i = 0, len = s.length; i < len; i++) {
            var c = s.charAt(i);
            isGlob = isGlob || (!quote && (c === '*' || c === '?'));
            if (esc) {
                out += c;
                esc = false;
            }
            else if (quote) {
                if (c === quote) {
                    quote = false;
                }
                else if (quote == SQ) {
                    out += c;
                }
                else { // Double quote
                    if (c === BS) {
                        i += 1;
                        c = s.charAt(i);
                        if (c === DQ || c === BS || c === DS) {
                            out += c;
                        } else {
                            out += BS + c;
                        }
                    }
                    else if (c === DS) {
                        out += parseEnvVar();
                    }
                    else {
                        out += c;
                    }
                }
            }
            else if (c === DQ || c === SQ) {
                quote = c;
            }
            else if (RegExp('^' + CONTROL + '$').test(c)) {
                return { op: s };
            }
            else if (RegExp('^#$').test(c)) {
                commented = true;
                if (out.length){
                    return [out, { comment: s.slice(i+1) + match.slice(j+1).join(' ') }];
                }
                return [{ comment: s.slice(i+1) + match.slice(j+1).join(' ') }];
            }
            else if (c === BS) {
                esc = true;
            }
            else if (c === DS) {
                out += parseEnvVar();
            }
            else out += c;
        }

        if (isGlob) return {op: 'glob', pattern: out};

        return out;

        function parseEnvVar() {
            i += 1;
            var varend, varname;
            //debugger
            if (s.charAt(i) === '{') {
                i += 1;
                if (s.charAt(i) === '}') {
                    throw new Error("Bad substitution: " + s.substr(i - 2, 3));
                }
                varend = s.indexOf('}', i);
                if (varend < 0) {
                    throw new Error("Bad substitution: " + s.substr(i));
                }
                varname = s.substr(i, varend - i);
                i = varend;
            }
            else if (/[*@#?$!_\-]/.test(s.charAt(i))) {
                varname = s.charAt(i);
                i += 1;
            }
            else {
                varend = s.substr(i).match(/[^\w\d_]/);
                if (!varend) {
                    varname = s.substr(i);
                    i = s.length;
                } else {
                    varname = s.substr(i, varend.index);
                    i += varend.index - 1;
                }
            }
            return getVar(null, '', varname);
        }
    })
    // finalize parsed aruments
    .reduce(function(prev, arg){
        if (arg === undefined){
            return prev;
        }
        return prev.concat(arg);
    },[]);

    function getVar (_, pre, key) {
        var r = typeof env === 'function' ? env(key) : env[key];
        if (r === undefined && key != '')
            r = '';
        else if (r === undefined)
            r = '$';

        if (typeof r === 'object') {
            return pre + TOKEN + JSON.stringify(r) + TOKEN;
        }
        else return pre + r;
    }
}

var osx = {
  '/Applications/Atom.app/Contents/MacOS/Atom': 'atom',
  '/Applications/Atom Beta.app/Contents/MacOS/Atom Beta':
    '/Applications/Atom Beta.app/Contents/MacOS/Atom Beta',
  '/Applications/Brackets.app/Contents/MacOS/Brackets': 'brackets',
  '/Applications/Sublime Text.app/Contents/MacOS/Sublime Text':
    '/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl',
  '/Applications/Sublime Text 2.app/Contents/MacOS/Sublime Text 2':
    '/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl',
  '/Applications/Sublime Text Dev.app/Contents/MacOS/Sublime Text':
    '/Applications/Sublime Text Dev.app/Contents/SharedSupport/bin/subl',
  '/Applications/Visual Studio Code.app/Contents/MacOS/Electron': 'code',
  '/Applications/Visual Studio Code - Insiders.app/Contents/MacOS/Electron':
    'code-insiders',
  '/Applications/AppCode.app/Contents/MacOS/appcode':
    '/Applications/AppCode.app/Contents/MacOS/appcode',
  '/Applications/CLion.app/Contents/MacOS/clion':
    '/Applications/CLion.app/Contents/MacOS/clion',
  '/Applications/IntelliJ IDEA.app/Contents/MacOS/idea':
    '/Applications/IntelliJ IDEA.app/Contents/MacOS/idea',
  '/Applications/PhpStorm.app/Contents/MacOS/phpstorm':
    '/Applications/PhpStorm.app/Contents/MacOS/phpstorm',
  '/Applications/PyCharm.app/Contents/MacOS/pycharm':
    '/Applications/PyCharm.app/Contents/MacOS/pycharm',
  '/Applications/PyCharm CE.app/Contents/MacOS/pycharm':
    '/Applications/PyCharm CE.app/Contents/MacOS/pycharm',
  '/Applications/RubyMine.app/Contents/MacOS/rubymine':
    '/Applications/RubyMine.app/Contents/MacOS/rubymine',
  '/Applications/WebStorm.app/Contents/MacOS/webstorm':
    '/Applications/WebStorm.app/Contents/MacOS/webstorm'
};

var linux = {
  atom: 'atom',
  Brackets: 'brackets',
  code: 'code',
  emacs: 'emacs',
  'idea.sh': 'idea',
  'phpstorm.sh': 'phpstorm',
  'pycharm.sh': 'pycharm',
  'rubymine.sh': 'rubymine',
  sublime_text: 'subl',
  vim: 'vim',
  'webstorm.sh': 'webstorm'
};

var windows = [
  'Brackets.exe',
  'Code.exe',
  'atom.exe',
  'sublime_text.exe',
  'notepad++.exe',
  'clion.exe',
  'clion64.exe',
  'idea.exe',
  'idea64.exe',
  'phpstorm.exe',
  'phpstorm64.exe',
  'pycharm.exe',
  'pycharm64.exe',
  'rubymine.exe',
  'rubymine64.exe',
  'webstorm.exe',
  'webstorm64.exe'
];

const path$4 = path__default;
const shellQuote = shellQuote$1;
const childProcess$1 = require$$1__default$4;

// Map from full process name to binary that starts the process
// We can't just re-use full process name, because it will spawn a new instance
// of the app every time
const COMMON_EDITORS_OSX = osx;
const COMMON_EDITORS_LINUX = linux;
const COMMON_EDITORS_WIN = windows;

var guess = function guessEditor (specifiedEditor) {
  if (specifiedEditor) {
    return shellQuote.parse(specifiedEditor)
  }
  // We can find out which editor is currently running by:
  // `ps x` on macOS and Linux
  // `Get-Process` on Windows
  try {
    if (process.platform === 'darwin') {
      const output = childProcess$1.execSync('ps x').toString();
      const processNames = Object.keys(COMMON_EDITORS_OSX);
      for (let i = 0; i < processNames.length; i++) {
        const processName = processNames[i];
        if (output.indexOf(processName) !== -1) {
          return [COMMON_EDITORS_OSX[processName]]
        }
      }
    } else if (process.platform === 'win32') {
      const output = childProcess$1
        .execSync('powershell -Command "Get-Process | Select-Object Path"', {
          stdio: ['pipe', 'pipe', 'ignore']
        })
        .toString();
      const runningProcesses = output.split('\r\n');
      for (let i = 0; i < runningProcesses.length; i++) {
        // `Get-Process` sometimes returns empty lines
        if (!runningProcesses[i]) {
          continue
        }

        const fullProcessPath = runningProcesses[i].trim();
        const shortProcessName = path$4.basename(fullProcessPath);

        if (COMMON_EDITORS_WIN.indexOf(shortProcessName) !== -1) {
          return [fullProcessPath]
        }
      }
    } else if (process.platform === 'linux') {
      // --no-heading No header line
      // x List all processes owned by you
      // -o comm Need only names column
      const output = childProcess$1
        .execSync('ps x --no-heading -o comm --sort=comm')
        .toString();
      const processNames = Object.keys(COMMON_EDITORS_LINUX);
      for (let i = 0; i < processNames.length; i++) {
        const processName = processNames[i];
        if (output.indexOf(processName) !== -1) {
          return [COMMON_EDITORS_LINUX[processName]]
        }
      }
    }
  } catch (error) {
    // Ignore...
  }

  // Last resort, use old skool env vars
  if (process.env.VISUAL) {
    return [process.env.VISUAL]
  } else if (process.env.EDITOR) {
    return [process.env.EDITOR]
  }

  return [null]
};

const path$3 = path__default;

// normalize file/line numbers into command line args for specific editors
var getArgs = function getArgumentsForPosition (
  editor,
  fileName,
  lineNumber,
  columnNumber = 1
) {
  const editorBasename = path$3.basename(editor).replace(/\.(exe|cmd|bat)$/i, '');
  switch (editorBasename) {
    case 'atom':
    case 'Atom':
    case 'Atom Beta':
    case 'subl':
    case 'sublime':
    case 'sublime_text':
    case 'wstorm':
    case 'charm':
      return [`${fileName}:${lineNumber}:${columnNumber}`]
    case 'notepad++':
      return ['-n' + lineNumber, fileName]
    case 'vim':
    case 'mvim':
      return [`+call cursor(${lineNumber}, ${columnNumber})`, fileName]
    case 'joe':
      return ['+' + `${lineNumber}`, fileName]
    case 'emacs':
    case 'emacsclient':
      return [`+${lineNumber}:${columnNumber}`, fileName]
    case 'rmate':
    case 'mate':
    case 'mine':
      return ['--line', lineNumber, fileName]
    case 'code':
    case 'code-insiders':
    case 'Code':
      return ['-r', '-g', `${fileName}:${lineNumber}:${columnNumber}`]
    case 'appcode':
    case 'clion':
    case 'clion64':
    case 'idea':
    case 'idea64':
    case 'phpstorm':
    case 'phpstorm64':
    case 'pycharm':
    case 'pycharm64':
    case 'rubymine':
    case 'rubymine64':
    case 'webstorm':
    case 'webstorm64':
      return ['--line', lineNumber, fileName]
  }

  // For all others, drop the lineNumber until we have
  // a mapping above, since providing the lineNumber incorrectly
  // can result in errors or confusing behavior.
  return [fileName]
};

/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file at
 * https://github.com/facebookincubator/create-react-app/blob/master/LICENSE
 *
 * Modified by Yuxi Evan You
 */

const fs$1 = fs__default;
const os$1 = require$$0__default$1;
const path$2 = path__default;
const chalk = chalk$1.exports;
const childProcess = require$$1__default$4;

const guessEditor = guess;
const getArgumentsForPosition = getArgs;

function wrapErrorCallback (cb) {
  return (fileName, errorMessage) => {
    console.log();
    console.log(
      chalk.red('Could not open ' + path$2.basename(fileName) + ' in the editor.')
    );
    if (errorMessage) {
      if (errorMessage[errorMessage.length - 1] !== '.') {
        errorMessage += '.';
      }
      console.log(
        chalk.red('The editor process exited with an error: ' + errorMessage)
      );
    }
    console.log();
    if (cb) cb(fileName, errorMessage);
  }
}

function isTerminalEditor (editor) {
  switch (editor) {
    case 'vim':
    case 'emacs':
    case 'nano':
      return true
  }
  return false
}

const positionRE = /:(\d+)(:(\d+))?$/;
function parseFile (file) {
  const fileName = file.replace(positionRE, '');
  const match = file.match(positionRE);
  const lineNumber = match && match[1];
  const columnNumber = match && match[3];
  return {
    fileName,
    lineNumber,
    columnNumber
  }
}

let _childProcess = null;

function launchEditor (file, specifiedEditor, onErrorCallback) {
  const parsed = parseFile(file);
  let { fileName } = parsed;
  const { lineNumber, columnNumber } = parsed;

  if (!fs$1.existsSync(fileName)) {
    return
  }

  if (typeof specifiedEditor === 'function') {
    onErrorCallback = specifiedEditor;
    specifiedEditor = undefined;
  }

  onErrorCallback = wrapErrorCallback(onErrorCallback);

  const [editor, ...args] = guessEditor(specifiedEditor);
  if (!editor) {
    onErrorCallback(fileName, null);
    return
  }

  if (
    process.platform === 'linux' &&
    fileName.startsWith('/mnt/') &&
    /Microsoft/i.test(os$1.release())
  ) {
    // Assume WSL / "Bash on Ubuntu on Windows" is being used, and
    // that the file exists on the Windows file system.
    // `os.release()` is "4.4.0-43-Microsoft" in the current release
    // build of WSL, see: https://github.com/Microsoft/BashOnWindows/issues/423#issuecomment-221627364
    // When a Windows editor is specified, interop functionality can
    // handle the path translation, but only if a relative path is used.
    fileName = path$2.relative('', fileName);
  }

  if (lineNumber) {
    const extraArgs = getArgumentsForPosition(editor, fileName, lineNumber, columnNumber);
    args.push.apply(args, extraArgs);
  } else {
    args.push(fileName);
  }

  if (_childProcess && isTerminalEditor(editor)) {
    // There's an existing editor process already and it's attached
    // to the terminal, so go kill it. Otherwise two separate editor
    // instances attach to the stdin/stdout which gets confusing.
    _childProcess.kill('SIGKILL');
  }

  if (process.platform === 'win32') {
    // On Windows, launch the editor in a shell because spawn can only
    // launch .exe files.
    _childProcess = childProcess.spawn(
      'cmd.exe',
      ['/C', editor].concat(args),
      { stdio: 'inherit' }
    );
  } else {
    _childProcess = childProcess.spawn(editor, args, { stdio: 'inherit' });
  }
  _childProcess.on('exit', function (errorCode) {
    _childProcess = null;

    if (errorCode) {
      onErrorCallback(fileName, '(code ' + errorCode + ')');
    }
  });

  _childProcess.on('error', function (error) {
    onErrorCallback(fileName, error.message);
  });
}

var launchEditor_1 = launchEditor;

const url = require$$0__default$6;
const path$1 = path__default;
const launch = launchEditor_1;

var launchEditorMiddleware = (specifiedEditor, srcRoot, onErrorCallback) => {
  if (typeof specifiedEditor === 'function') {
    onErrorCallback = specifiedEditor;
    specifiedEditor = undefined;
  }

  if (typeof srcRoot === 'function') {
    onErrorCallback = srcRoot;
    srcRoot = undefined;
  }

  srcRoot = srcRoot || process.cwd();

  return function launchEditorMiddleware (req, res, next) {
    const { file } = url.parse(req.url, true).query || {};
    if (!file) {
      res.statusCode = 500;
      res.end(`launch-editor-middleware: required query param "file" is missing.`);
    } else {
      launch(path$1.resolve(srcRoot, file), specifiedEditor, onErrorCallback);
      res.end();
    }
  }
};

const externalTypes = [
    'css',
    // supported pre-processor types
    'less',
    'sass',
    'scss',
    'styl',
    'stylus',
    'pcss',
    'postcss',
    // known SFC types
    'vue',
    'svelte',
    'marko',
    'astro',
    // JSX/TSX may be configured to be compiled differently from how esbuild
    // handles it by default, so exclude them as well
    'jsx',
    'tsx',
    ...KNOWN_ASSET_TYPES
];
function esbuildDepPlugin(qualified, exportsData, config, ssr) {
    // default resolver which prefers ESM
    const _resolve = config.createResolver({ asSrc: false });
    // cjs resolver that prefers Node
    const _resolveRequire = config.createResolver({
        asSrc: false,
        isRequire: true
    });
    const resolve = (id, importer, kind, resolveDir) => {
        let _importer;
        // explicit resolveDir - this is passed only during yarn pnp resolve for
        // entries
        if (resolveDir) {
            _importer = normalizePath$4(path__default.join(resolveDir, '*'));
        }
        else {
            // map importer ids to file paths for correct resolution
            _importer = importer in qualified ? qualified[importer] : importer;
        }
        const resolver = kind.startsWith('require') ? _resolveRequire : _resolve;
        return resolver(id, _importer, undefined, ssr);
    };
    return {
        name: 'vite:dep-pre-bundle',
        setup(build) {
            // externalize assets and commonly known non-js file types
            build.onResolve({
                filter: new RegExp(`\\.(` + externalTypes.join('|') + `)(\\?.*)?$`)
            }, async ({ path: id, importer, kind }) => {
                const resolved = await resolve(id, importer, kind);
                if (resolved) {
                    return {
                        path: resolved,
                        external: true
                    };
                }
            });
            function resolveEntry(id) {
                const flatId = flattenId(id);
                if (flatId in qualified) {
                    return {
                        path: flatId,
                        namespace: 'dep'
                    };
                }
            }
            build.onResolve({ filter: /^[\w@][^:]/ }, async ({ path: id, importer, kind }) => {
                // ensure esbuild uses our resolved entries
                let entry;
                // if this is an entry, return entry namespace resolve result
                if (!importer) {
                    if ((entry = resolveEntry(id)))
                        return entry;
                    // check if this is aliased to an entry - also return entry namespace
                    const aliased = await _resolve(id, undefined, true);
                    if (aliased && (entry = resolveEntry(aliased))) {
                        return entry;
                    }
                }
                // use vite's own resolver
                const resolved = await resolve(id, importer, kind);
                if (resolved) {
                    if (resolved.startsWith(browserExternalId)) {
                        return {
                            path: id,
                            namespace: 'browser-external'
                        };
                    }
                    if (isExternalUrl(resolved)) {
                        return {
                            path: resolved,
                            external: true
                        };
                    }
                    return {
                        path: path__default.resolve(resolved)
                    };
                }
            });
            // For entry files, we'll read it ourselves and construct a proxy module
            // to retain the entry's raw id instead of file path so that esbuild
            // outputs desired output file structure.
            // It is necessary to do the re-exporting to separate the virtual proxy
            // module from the actual module since the actual module may get
            // referenced via relative imports - if we don't separate the proxy and
            // the actual module, esbuild will create duplicated copies of the same
            // module!
            const root = path__default.resolve(config.root);
            build.onLoad({ filter: /.*/, namespace: 'dep' }, ({ path: id }) => {
                const entryFile = qualified[id];
                let relativePath = normalizePath$4(path__default.relative(root, entryFile));
                if (!relativePath.startsWith('./') &&
                    !relativePath.startsWith('../') &&
                    relativePath !== '.') {
                    relativePath = `./${relativePath}`;
                }
                let contents = '';
                const data = exportsData[id];
                const [imports, exports] = data;
                if (!imports.length && !exports.length) {
                    // cjs
                    contents += `export default require("${relativePath}");`;
                }
                else {
                    if (exports.includes('default')) {
                        contents += `import d from "${relativePath}";export default d;`;
                    }
                    if (data.hasReExports ||
                        exports.length > 1 ||
                        exports[0] !== 'default') {
                        contents += `\nexport * from "${relativePath}"`;
                    }
                }
                let ext = path__default.extname(entryFile).slice(1);
                if (ext === 'mjs')
                    ext = 'js';
                return {
                    loader: ext,
                    contents,
                    resolveDir: root
                };
            });
            build.onLoad({ filter: /.*/, namespace: 'browser-external' }, ({ path: id }) => {
                return {
                    contents: `export default new Proxy({}, {
  get() {
    throw new Error('Module "${id}" has been externalized for ` +
                        `browser compatibility and cannot be accessed in client code.')
  }
})`
                };
            });
            // yarn 2 pnp compat
            if (isRunningWithYarnPnp) {
                build.onResolve({ filter: /.*/ }, async ({ path, importer, kind, resolveDir }) => ({
                    // pass along resolveDir for entries
                    path: await resolve(path, importer, kind, resolveDir)
                }));
                build.onLoad({ filter: /.*/ }, async (args) => ({
                    contents: await require('fs').promises.readFile(args.path),
                    loader: 'default'
                }));
            }
        }
    };
}

const debug$3 = createDebugger('vite:deps');
async function optimizeDeps(config, force = config.server.force, asCommand = false, newDeps, // missing imports encountered after server has started
ssr) {
    var _a, _b, _c, _d;
    config = {
        ...config,
        command: 'build'
    };
    const { root, logger, cacheDir } = config;
    const log = asCommand ? logger.info : debug$3;
    if (!cacheDir) {
        log(`No cache directory. Skipping.`);
        return null;
    }
    const dataPath = path__default.join(cacheDir, '_metadata.json');
    const mainHash = getDepHash(root, config);
    const data = {
        hash: mainHash,
        browserHash: mainHash,
        optimized: {}
    };
    if (!force) {
        let prevData;
        try {
            prevData = JSON.parse(fs__default.readFileSync(dataPath, 'utf-8'));
        }
        catch (e) { }
        // hash is consistent, no need to re-bundle
        if (prevData && prevData.hash === data.hash) {
            log('Hash is consistent. Skipping. Use --force to override.');
            return prevData;
        }
    }
    if (fs__default.existsSync(cacheDir)) {
        emptyDir(cacheDir);
    }
    else {
        fs__default.mkdirSync(cacheDir, { recursive: true });
    }
    // a hint for Node.js
    // all files in the cache directory should be recognized as ES modules
    writeFile(path__default.resolve(cacheDir, 'package.json'), JSON.stringify({ type: 'module' }));
    let deps, missing;
    if (!newDeps) {
        ({ deps, missing } = await scanImports(config));
    }
    else {
        deps = newDeps;
        missing = {};
    }
    // update browser hash
    data.browserHash = require$$1.createHash('sha256')
        .update(data.hash + JSON.stringify(deps))
        .digest('hex')
        .substr(0, 8);
    const missingIds = Object.keys(missing);
    if (missingIds.length) {
        throw new Error(`The following dependencies are imported but could not be resolved:\n\n  ${missingIds
            .map((id) => `${source.cyan(id)} ${source.white.dim(`(imported by ${missing[id]})`)}`)
            .join(`\n  `)}\n\nAre they installed?`);
    }
    const include = (_a = config.optimizeDeps) === null || _a === void 0 ? void 0 : _a.include;
    if (include) {
        const resolve = config.createResolver({ asSrc: false });
        for (const id of include) {
            // normalize 'foo   >bar` as 'foo > bar' to prevent same id being added
            // and for pretty printing
            const normalizedId = normalizeId$1(id);
            if (!deps[normalizedId]) {
                const entry = await resolve(id);
                if (entry) {
                    deps[normalizedId] = entry;
                }
                else {
                    throw new Error(`Failed to resolve force included dependency: ${source.cyan(id)}`);
                }
            }
        }
    }
    const qualifiedIds = Object.keys(deps);
    if (!qualifiedIds.length) {
        writeFile(dataPath, JSON.stringify(data, null, 2));
        log(`No dependencies to bundle. Skipping.\n\n\n`);
        return data;
    }
    const total = qualifiedIds.length;
    const maxListed = 5;
    const listed = Math.min(total, maxListed);
    const extra = Math.max(0, total - maxListed);
    const depsString = source.yellow(qualifiedIds.slice(0, listed).join(`\n  `) +
        (extra > 0 ? `\n  (...and ${extra} more)` : ``));
    if (!asCommand) {
        if (!newDeps) {
            // This is auto run on server start - let the user know that we are
            // pre-optimizing deps
            logger.info(source.greenBright(`Pre-bundling dependencies:\n  ${depsString}`));
            logger.info(`(this will be run only when your dependencies or config have changed)`);
        }
    }
    else {
        logger.info(source.greenBright(`Optimizing dependencies:\n  ${depsString}`));
    }
    // esbuild generates nested directory output with lowest common ancestor base
    // this is unpredictable and makes it difficult to analyze entry / output
    // mapping. So what we do here is:
    // 1. flatten all ids to eliminate slash
    // 2. in the plugin, read the entry ourselves as virtual files to retain the
    //    path.
    const flatIdDeps = {};
    const idToExports = {};
    const flatIdToExports = {};
    const { plugins = [], ...esbuildOptions } = (_c = (_b = config.optimizeDeps) === null || _b === void 0 ? void 0 : _b.esbuildOptions) !== null && _c !== void 0 ? _c : {};
    await init;
    for (const id in deps) {
        const flatId = flattenId(id);
        const filePath = (flatIdDeps[flatId] = deps[id]);
        const entryContent = fs__default.readFileSync(filePath, 'utf-8');
        let exportsData;
        try {
            exportsData = parse$f(entryContent);
        }
        catch {
            debug$3(`Unable to parse dependency: ${id}. Trying again with a JSX transform.`);
            const transformed = await transformWithEsbuild(entryContent, filePath, {
                loader: 'jsx'
            });
            // Ensure that optimization won't fail by defaulting '.js' to the JSX parser.
            // This is useful for packages such as Gatsby.
            esbuildOptions.loader = {
                '.js': 'jsx',
                ...esbuildOptions.loader
            };
            exportsData = parse$f(transformed.code);
        }
        for (const { ss, se } of exportsData[0]) {
            const exp = entryContent.slice(ss, se);
            if (/export\s+\*\s+from/.test(exp)) {
                exportsData.hasReExports = true;
            }
        }
        idToExports[id] = exportsData;
        flatIdToExports[flatId] = exportsData;
    }
    const define = {
        'process.env.NODE_ENV': JSON.stringify(config.mode)
    };
    for (const key in config.define) {
        const value = config.define[key];
        define[key] = typeof value === 'string' ? value : JSON.stringify(value);
    }
    const start = perf_hooks.performance.now();
    const result = await esbuild.build({
        absWorkingDir: process.cwd(),
        entryPoints: Object.keys(flatIdDeps),
        bundle: true,
        format: 'esm',
        target: config.build.target || undefined,
        external: (_d = config.optimizeDeps) === null || _d === void 0 ? void 0 : _d.exclude,
        logLevel: 'error',
        splitting: true,
        sourcemap: true,
        outdir: cacheDir,
        ignoreAnnotations: true,
        metafile: true,
        define,
        plugins: [
            ...plugins,
            esbuildDepPlugin(flatIdDeps, flatIdToExports, config, ssr)
        ],
        ...esbuildOptions
    });
    const meta = result.metafile;
    // the paths in `meta.outputs` are relative to `process.cwd()`
    const cacheDirOutputPath = path__default.relative(process.cwd(), cacheDir);
    for (const id in deps) {
        const entry = deps[id];
        data.optimized[id] = {
            file: normalizePath$4(path__default.resolve(cacheDir, flattenId(id) + '.js')),
            src: entry,
            needsInterop: needsInterop(id, idToExports[id], meta.outputs, cacheDirOutputPath)
        };
    }
    writeFile(dataPath, JSON.stringify(data, null, 2));
    debug$3(`deps bundled in ${(perf_hooks.performance.now() - start).toFixed(2)}ms`);
    return data;
}
// https://github.com/vitejs/vite/issues/1724#issuecomment-767619642
// a list of modules that pretends to be ESM but still uses `require`.
// this causes esbuild to wrap them as CJS even when its entry appears to be ESM.
const KNOWN_INTEROP_IDS = new Set(['moment']);
function needsInterop(id, exportsData, outputs, cacheDirOutputPath) {
    if (KNOWN_INTEROP_IDS.has(id)) {
        return true;
    }
    const [imports, exports] = exportsData;
    // entry has no ESM syntax - likely CJS or UMD
    if (!exports.length && !imports.length) {
        return true;
    }
    // if a peer dependency used require() on a ESM dependency, esbuild turns the
    // ESM dependency's entry chunk into a single default export... detect
    // such cases by checking exports mismatch, and force interop.
    const flatId = flattenId(id) + '.js';
    let generatedExports;
    for (const output in outputs) {
        if (normalizePath$4(output) ===
            normalizePath$4(path__default.join(cacheDirOutputPath, flatId))) {
            generatedExports = outputs[output].exports;
            break;
        }
    }
    if (!generatedExports ||
        (isSingleDefaultExport(generatedExports) && !isSingleDefaultExport(exports))) {
        return true;
    }
    return false;
}
function isSingleDefaultExport(exports) {
    return exports.length === 1 && exports[0] === 'default';
}
const lockfileFormats = ['package-lock.json', 'yarn.lock', 'pnpm-lock.yaml'];
function getDepHash(root, config) {
    var _a, _b;
    let content = lookupFile(root, lockfileFormats) || '';
    // also take config into account
    // only a subset of config options that can affect dep optimization
    content += JSON.stringify({
        mode: config.mode,
        root: config.root,
        resolve: config.resolve,
        assetsInclude: config.assetsInclude,
        plugins: config.plugins.map((p) => p.name),
        optimizeDeps: {
            include: (_a = config.optimizeDeps) === null || _a === void 0 ? void 0 : _a.include,
            exclude: (_b = config.optimizeDeps) === null || _b === void 0 ? void 0 : _b.exclude
        }
    }, (_, value) => {
        if (typeof value === 'function' || value instanceof RegExp) {
            return value.toString();
        }
        return value;
    });
    return require$$1.createHash('sha256').update(content).digest('hex').substr(0, 8);
}

var index$1 = {
	__proto__: null,
	optimizeDeps: optimizeDeps
};

var sourceMapGenerator = {};

var base64Vlq = {};

var base64$1 = {};

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');

/**
 * Encode an integer in the range of 0 to 63 to a single base 64 digit.
 */
base64$1.encode = function (number) {
  if (0 <= number && number < intToCharMap.length) {
    return intToCharMap[number];
  }
  throw new TypeError("Must be between 0 and 63: " + number);
};

/**
 * Decode a single base 64 character code digit to an integer. Returns -1 on
 * failure.
 */
base64$1.decode = function (charCode) {
  var bigA = 65;     // 'A'
  var bigZ = 90;     // 'Z'

  var littleA = 97;  // 'a'
  var littleZ = 122; // 'z'

  var zero = 48;     // '0'
  var nine = 57;     // '9'

  var plus = 43;     // '+'
  var slash = 47;    // '/'

  var littleOffset = 26;
  var numberOffset = 52;

  // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
  if (bigA <= charCode && charCode <= bigZ) {
    return (charCode - bigA);
  }

  // 26 - 51: abcdefghijklmnopqrstuvwxyz
  if (littleA <= charCode && charCode <= littleZ) {
    return (charCode - littleA + littleOffset);
  }

  // 52 - 61: 0123456789
  if (zero <= charCode && charCode <= nine) {
    return (charCode - zero + numberOffset);
  }

  // 62: +
  if (charCode == plus) {
    return 62;
  }

  // 63: /
  if (charCode == slash) {
    return 63;
  }

  // Invalid base64 digit.
  return -1;
};

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 *
 * Based on the Base 64 VLQ implementation in Closure Compiler:
 * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
 *
 * Copyright 2011 The Closure Compiler Authors. All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *  * Neither the name of Google Inc. nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

var base64 = base64$1;

// A single base 64 digit can contain 6 bits of data. For the base 64 variable
// length quantities we use in the source map spec, the first bit is the sign,
// the next four bits are the actual value, and the 6th bit is the
// continuation bit. The continuation bit tells us whether there are more
// digits in this value following this digit.
//
//   Continuation
//   |    Sign
//   |    |
//   V    V
//   101011

var VLQ_BASE_SHIFT = 5;

// binary: 100000
var VLQ_BASE = 1 << VLQ_BASE_SHIFT;

// binary: 011111
var VLQ_BASE_MASK = VLQ_BASE - 1;

// binary: 100000
var VLQ_CONTINUATION_BIT = VLQ_BASE;

/**
 * Converts from a two-complement value to a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
 *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
 */
function toVLQSigned(aValue) {
  return aValue < 0
    ? ((-aValue) << 1) + 1
    : (aValue << 1) + 0;
}

/**
 * Converts to a two-complement value from a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
 *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
 */
function fromVLQSigned(aValue) {
  var isNegative = (aValue & 1) === 1;
  var shifted = aValue >> 1;
  return isNegative
    ? -shifted
    : shifted;
}

/**
 * Returns the base 64 VLQ encoded value.
 */
base64Vlq.encode = function base64VLQ_encode(aValue) {
  var encoded = "";
  var digit;

  var vlq = toVLQSigned(aValue);

  do {
    digit = vlq & VLQ_BASE_MASK;
    vlq >>>= VLQ_BASE_SHIFT;
    if (vlq > 0) {
      // There are still more digits in this value, so we must make sure the
      // continuation bit is marked.
      digit |= VLQ_CONTINUATION_BIT;
    }
    encoded += base64.encode(digit);
  } while (vlq > 0);

  return encoded;
};

/**
 * Decodes the next base 64 VLQ value from the given string and returns the
 * value and the rest of the string via the out parameter.
 */
base64Vlq.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
  var strLen = aStr.length;
  var result = 0;
  var shift = 0;
  var continuation, digit;

  do {
    if (aIndex >= strLen) {
      throw new Error("Expected more digits in base 64 VLQ value.");
    }

    digit = base64.decode(aStr.charCodeAt(aIndex++));
    if (digit === -1) {
      throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
    }

    continuation = !!(digit & VLQ_CONTINUATION_BIT);
    digit &= VLQ_BASE_MASK;
    result = result + (digit << shift);
    shift += VLQ_BASE_SHIFT;
  } while (continuation);

  aOutParam.value = fromVLQSigned(result);
  aOutParam.rest = aIndex;
};

var util$5 = {};

/* -*- Mode: js; js-indent-level: 2; -*- */

(function (exports) {
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

/**
 * This is a helper function for getting values from parameter/options
 * objects.
 *
 * @param args The object we are extracting values from
 * @param name The name of the property we are getting.
 * @param defaultValue An optional value to return if the property is missing
 * from the object. If this is not specified and the property is missing, an
 * error will be thrown.
 */
function getArg(aArgs, aName, aDefaultValue) {
  if (aName in aArgs) {
    return aArgs[aName];
  } else if (arguments.length === 3) {
    return aDefaultValue;
  } else {
    throw new Error('"' + aName + '" is a required argument.');
  }
}
exports.getArg = getArg;

var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/;
var dataUrlRegexp = /^data:.+\,.+$/;

function urlParse(aUrl) {
  var match = aUrl.match(urlRegexp);
  if (!match) {
    return null;
  }
  return {
    scheme: match[1],
    auth: match[2],
    host: match[3],
    port: match[4],
    path: match[5]
  };
}
exports.urlParse = urlParse;

function urlGenerate(aParsedUrl) {
  var url = '';
  if (aParsedUrl.scheme) {
    url += aParsedUrl.scheme + ':';
  }
  url += '//';
  if (aParsedUrl.auth) {
    url += aParsedUrl.auth + '@';
  }
  if (aParsedUrl.host) {
    url += aParsedUrl.host;
  }
  if (aParsedUrl.port) {
    url += ":" + aParsedUrl.port;
  }
  if (aParsedUrl.path) {
    url += aParsedUrl.path;
  }
  return url;
}
exports.urlGenerate = urlGenerate;

/**
 * Normalizes a path, or the path portion of a URL:
 *
 * - Replaces consecutive slashes with one slash.
 * - Removes unnecessary '.' parts.
 * - Removes unnecessary '<dir>/..' parts.
 *
 * Based on code in the Node.js 'path' core module.
 *
 * @param aPath The path or url to normalize.
 */
function normalize(aPath) {
  var path = aPath;
  var url = urlParse(aPath);
  if (url) {
    if (!url.path) {
      return aPath;
    }
    path = url.path;
  }
  var isAbsolute = exports.isAbsolute(path);

  var parts = path.split(/\/+/);
  for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
    part = parts[i];
    if (part === '.') {
      parts.splice(i, 1);
    } else if (part === '..') {
      up++;
    } else if (up > 0) {
      if (part === '') {
        // The first part is blank if the path is absolute. Trying to go
        // above the root is a no-op. Therefore we can remove all '..' parts
        // directly after the root.
        parts.splice(i + 1, up);
        up = 0;
      } else {
        parts.splice(i, 2);
        up--;
      }
    }
  }
  path = parts.join('/');

  if (path === '') {
    path = isAbsolute ? '/' : '.';
  }

  if (url) {
    url.path = path;
    return urlGenerate(url);
  }
  return path;
}
exports.normalize = normalize;

/**
 * Joins two paths/URLs.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be joined with the root.
 *
 * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
 *   scheme-relative URL: Then the scheme of aRoot, if any, is prepended
 *   first.
 * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
 *   is updated with the result and aRoot is returned. Otherwise the result
 *   is returned.
 *   - If aPath is absolute, the result is aPath.
 *   - Otherwise the two paths are joined with a slash.
 * - Joining for example 'http://' and 'www.example.com' is also supported.
 */
function join(aRoot, aPath) {
  if (aRoot === "") {
    aRoot = ".";
  }
  if (aPath === "") {
    aPath = ".";
  }
  var aPathUrl = urlParse(aPath);
  var aRootUrl = urlParse(aRoot);
  if (aRootUrl) {
    aRoot = aRootUrl.path || '/';
  }

  // `join(foo, '//www.example.org')`
  if (aPathUrl && !aPathUrl.scheme) {
    if (aRootUrl) {
      aPathUrl.scheme = aRootUrl.scheme;
    }
    return urlGenerate(aPathUrl);
  }

  if (aPathUrl || aPath.match(dataUrlRegexp)) {
    return aPath;
  }

  // `join('http://', 'www.example.com')`
  if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
    aRootUrl.host = aPath;
    return urlGenerate(aRootUrl);
  }

  var joined = aPath.charAt(0) === '/'
    ? aPath
    : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);

  if (aRootUrl) {
    aRootUrl.path = joined;
    return urlGenerate(aRootUrl);
  }
  return joined;
}
exports.join = join;

exports.isAbsolute = function (aPath) {
  return aPath.charAt(0) === '/' || urlRegexp.test(aPath);
};

/**
 * Make a path relative to a URL or another path.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be made relative to aRoot.
 */
function relative(aRoot, aPath) {
  if (aRoot === "") {
    aRoot = ".";
  }

  aRoot = aRoot.replace(/\/$/, '');

  // It is possible for the path to be above the root. In this case, simply
  // checking whether the root is a prefix of the path won't work. Instead, we
  // need to remove components from the root one by one, until either we find
  // a prefix that fits, or we run out of components to remove.
  var level = 0;
  while (aPath.indexOf(aRoot + '/') !== 0) {
    var index = aRoot.lastIndexOf("/");
    if (index < 0) {
      return aPath;
    }

    // If the only part of the root that is left is the scheme (i.e. http://,
    // file:///, etc.), one or more slashes (/), or simply nothing at all, we
    // have exhausted all components, so the path is not relative to the root.
    aRoot = aRoot.slice(0, index);
    if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
      return aPath;
    }

    ++level;
  }

  // Make sure we add a "../" for each component we removed from the root.
  return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
}
exports.relative = relative;

var supportsNullProto = (function () {
  var obj = Object.create(null);
  return !('__proto__' in obj);
}());

function identity (s) {
  return s;
}

/**
 * Because behavior goes wacky when you set `__proto__` on objects, we
 * have to prefix all the strings in our set with an arbitrary character.
 *
 * See https://github.com/mozilla/source-map/pull/31 and
 * https://github.com/mozilla/source-map/issues/30
 *
 * @param String aStr
 */
function toSetString(aStr) {
  if (isProtoString(aStr)) {
    return '$' + aStr;
  }

  return aStr;
}
exports.toSetString = supportsNullProto ? identity : toSetString;

function fromSetString(aStr) {
  if (isProtoString(aStr)) {
    return aStr.slice(1);
  }

  return aStr;
}
exports.fromSetString = supportsNullProto ? identity : fromSetString;

function isProtoString(s) {
  if (!s) {
    return false;
  }

  var length = s.length;

  if (length < 9 /* "__proto__".length */) {
    return false;
  }

  if (s.charCodeAt(length - 1) !== 95  /* '_' */ ||
      s.charCodeAt(length - 2) !== 95  /* '_' */ ||
      s.charCodeAt(length - 3) !== 111 /* 'o' */ ||
      s.charCodeAt(length - 4) !== 116 /* 't' */ ||
      s.charCodeAt(length - 5) !== 111 /* 'o' */ ||
      s.charCodeAt(length - 6) !== 114 /* 'r' */ ||
      s.charCodeAt(length - 7) !== 112 /* 'p' */ ||
      s.charCodeAt(length - 8) !== 95  /* '_' */ ||
      s.charCodeAt(length - 9) !== 95  /* '_' */) {
    return false;
  }

  for (var i = length - 10; i >= 0; i--) {
    if (s.charCodeAt(i) !== 36 /* '$' */) {
      return false;
    }
  }

  return true;
}

/**
 * Comparator between two mappings where the original positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same original source/line/column, but different generated
 * line and column the same. Useful when searching for a mapping with a
 * stubbed out mapping.
 */
function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
  var cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0 || onlyCompareOriginal) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  return strcmp(mappingA.name, mappingB.name);
}
exports.compareByOriginalPositions = compareByOriginalPositions;

/**
 * Comparator between two mappings with deflated source and name indices where
 * the generated positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same generated line and column, but different
 * source/name/original line and column the same. Useful when searching for a
 * mapping with a stubbed out mapping.
 */
function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
  var cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0 || onlyCompareGenerated) {
    return cmp;
  }

  cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp;
  }

  return strcmp(mappingA.name, mappingB.name);
}
exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;

function strcmp(aStr1, aStr2) {
  if (aStr1 === aStr2) {
    return 0;
  }

  if (aStr1 === null) {
    return 1; // aStr2 !== null
  }

  if (aStr2 === null) {
    return -1; // aStr1 !== null
  }

  if (aStr1 > aStr2) {
    return 1;
  }

  return -1;
}

/**
 * Comparator between two mappings with inflated source and name strings where
 * the generated positions are compared.
 */
function compareByGeneratedPositionsInflated(mappingA, mappingB) {
  var cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp;
  }

  return strcmp(mappingA.name, mappingB.name);
}
exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;

/**
 * Strip any JSON XSSI avoidance prefix from the string (as documented
 * in the source maps specification), and then parse the string as
 * JSON.
 */
function parseSourceMapInput(str) {
  return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''));
}
exports.parseSourceMapInput = parseSourceMapInput;

/**
 * Compute the URL of a source given the the source root, the source's
 * URL, and the source map's URL.
 */
function computeSourceURL(sourceRoot, sourceURL, sourceMapURL) {
  sourceURL = sourceURL || '';

  if (sourceRoot) {
    // This follows what Chrome does.
    if (sourceRoot[sourceRoot.length - 1] !== '/' && sourceURL[0] !== '/') {
      sourceRoot += '/';
    }
    // The spec says:
    //   Line 4: An optional source root, useful for relocating source
    //   files on a server or removing repeated values in the
    //   “sources” entry.  This value is prepended to the individual
    //   entries in the “source” field.
    sourceURL = sourceRoot + sourceURL;
  }

  // Historically, SourceMapConsumer did not take the sourceMapURL as
  // a parameter.  This mode is still somewhat supported, which is why
  // this code block is conditional.  However, it's preferable to pass
  // the source map URL to SourceMapConsumer, so that this function
  // can implement the source URL resolution algorithm as outlined in
  // the spec.  This block is basically the equivalent of:
  //    new URL(sourceURL, sourceMapURL).toString()
  // ... except it avoids using URL, which wasn't available in the
  // older releases of node still supported by this library.
  //
  // The spec says:
  //   If the sources are not absolute URLs after prepending of the
  //   “sourceRoot”, the sources are resolved relative to the
  //   SourceMap (like resolving script src in a html document).
  if (sourceMapURL) {
    var parsed = urlParse(sourceMapURL);
    if (!parsed) {
      throw new Error("sourceMapURL could not be parsed");
    }
    if (parsed.path) {
      // Strip the last path component, but keep the "/".
      var index = parsed.path.lastIndexOf('/');
      if (index >= 0) {
        parsed.path = parsed.path.substring(0, index + 1);
      }
    }
    sourceURL = join(urlGenerate(parsed), sourceURL);
  }

  return normalize(sourceURL);
}
exports.computeSourceURL = computeSourceURL;
}(util$5));

var arraySet = {};

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var util$4 = util$5;
var has = Object.prototype.hasOwnProperty;
var hasNativeMap = typeof Map !== "undefined";

/**
 * A data structure which is a combination of an array and a set. Adding a new
 * member is O(1), testing for membership is O(1), and finding the index of an
 * element is O(1). Removing elements from the set is not supported. Only
 * strings are supported for membership.
 */
function ArraySet$2() {
  this._array = [];
  this._set = hasNativeMap ? new Map() : Object.create(null);
}

/**
 * Static method for creating ArraySet instances from an existing array.
 */
ArraySet$2.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
  var set = new ArraySet$2();
  for (var i = 0, len = aArray.length; i < len; i++) {
    set.add(aArray[i], aAllowDuplicates);
  }
  return set;
};

/**
 * Return how many unique items are in this ArraySet. If duplicates have been
 * added, than those do not count towards the size.
 *
 * @returns Number
 */
ArraySet$2.prototype.size = function ArraySet_size() {
  return hasNativeMap ? this._set.size : Object.getOwnPropertyNames(this._set).length;
};

/**
 * Add the given string to this set.
 *
 * @param String aStr
 */
ArraySet$2.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
  var sStr = hasNativeMap ? aStr : util$4.toSetString(aStr);
  var isDuplicate = hasNativeMap ? this.has(aStr) : has.call(this._set, sStr);
  var idx = this._array.length;
  if (!isDuplicate || aAllowDuplicates) {
    this._array.push(aStr);
  }
  if (!isDuplicate) {
    if (hasNativeMap) {
      this._set.set(aStr, idx);
    } else {
      this._set[sStr] = idx;
    }
  }
};

/**
 * Is the given string a member of this set?
 *
 * @param String aStr
 */
ArraySet$2.prototype.has = function ArraySet_has(aStr) {
  if (hasNativeMap) {
    return this._set.has(aStr);
  } else {
    var sStr = util$4.toSetString(aStr);
    return has.call(this._set, sStr);
  }
};

/**
 * What is the index of the given string in the array?
 *
 * @param String aStr
 */
ArraySet$2.prototype.indexOf = function ArraySet_indexOf(aStr) {
  if (hasNativeMap) {
    var idx = this._set.get(aStr);
    if (idx >= 0) {
        return idx;
    }
  } else {
    var sStr = util$4.toSetString(aStr);
    if (has.call(this._set, sStr)) {
      return this._set[sStr];
    }
  }

  throw new Error('"' + aStr + '" is not in the set.');
};

/**
 * What is the element at the given index?
 *
 * @param Number aIdx
 */
ArraySet$2.prototype.at = function ArraySet_at(aIdx) {
  if (aIdx >= 0 && aIdx < this._array.length) {
    return this._array[aIdx];
  }
  throw new Error('No element indexed by ' + aIdx);
};

/**
 * Returns the array representation of this set (which has the proper indices
 * indicated by indexOf). Note that this is a copy of the internal array used
 * for storing the members so that no one can mess with internal state.
 */
ArraySet$2.prototype.toArray = function ArraySet_toArray() {
  return this._array.slice();
};

arraySet.ArraySet = ArraySet$2;

var mappingList = {};

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2014 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var util$3 = util$5;

/**
 * Determine whether mappingB is after mappingA with respect to generated
 * position.
 */
function generatedPositionAfter(mappingA, mappingB) {
  // Optimized for most common case
  var lineA = mappingA.generatedLine;
  var lineB = mappingB.generatedLine;
  var columnA = mappingA.generatedColumn;
  var columnB = mappingB.generatedColumn;
  return lineB > lineA || lineB == lineA && columnB >= columnA ||
         util$3.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0;
}

/**
 * A data structure to provide a sorted view of accumulated mappings in a
 * performance conscious manner. It trades a neglibable overhead in general
 * case for a large speedup in case of mappings being added in order.
 */
function MappingList$1() {
  this._array = [];
  this._sorted = true;
  // Serves as infimum
  this._last = {generatedLine: -1, generatedColumn: 0};
}

/**
 * Iterate through internal items. This method takes the same arguments that
 * `Array.prototype.forEach` takes.
 *
 * NOTE: The order of the mappings is NOT guaranteed.
 */
MappingList$1.prototype.unsortedForEach =
  function MappingList_forEach(aCallback, aThisArg) {
    this._array.forEach(aCallback, aThisArg);
  };

/**
 * Add the given source mapping.
 *
 * @param Object aMapping
 */
MappingList$1.prototype.add = function MappingList_add(aMapping) {
  if (generatedPositionAfter(this._last, aMapping)) {
    this._last = aMapping;
    this._array.push(aMapping);
  } else {
    this._sorted = false;
    this._array.push(aMapping);
  }
};

/**
 * Returns the flat, sorted array of mappings. The mappings are sorted by
 * generated position.
 *
 * WARNING: This method returns internal data without copying, for
 * performance. The return value must NOT be mutated, and should be treated as
 * an immutable borrow. If you want to take ownership, you must make your own
 * copy.
 */
MappingList$1.prototype.toArray = function MappingList_toArray() {
  if (!this._sorted) {
    this._array.sort(util$3.compareByGeneratedPositionsInflated);
    this._sorted = true;
  }
  return this._array;
};

mappingList.MappingList = MappingList$1;

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var base64VLQ$1 = base64Vlq;
var util$2 = util$5;
var ArraySet$1 = arraySet.ArraySet;
var MappingList = mappingList.MappingList;

/**
 * An instance of the SourceMapGenerator represents a source map which is
 * being built incrementally. You may pass an object with the following
 * properties:
 *
 *   - file: The filename of the generated source.
 *   - sourceRoot: A root for all relative URLs in this source map.
 */
function SourceMapGenerator$1(aArgs) {
  if (!aArgs) {
    aArgs = {};
  }
  this._file = util$2.getArg(aArgs, 'file', null);
  this._sourceRoot = util$2.getArg(aArgs, 'sourceRoot', null);
  this._skipValidation = util$2.getArg(aArgs, 'skipValidation', false);
  this._sources = new ArraySet$1();
  this._names = new ArraySet$1();
  this._mappings = new MappingList();
  this._sourcesContents = null;
}

SourceMapGenerator$1.prototype._version = 3;

/**
 * Creates a new SourceMapGenerator based on a SourceMapConsumer
 *
 * @param aSourceMapConsumer The SourceMap.
 */
SourceMapGenerator$1.fromSourceMap =
  function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
    var sourceRoot = aSourceMapConsumer.sourceRoot;
    var generator = new SourceMapGenerator$1({
      file: aSourceMapConsumer.file,
      sourceRoot: sourceRoot
    });
    aSourceMapConsumer.eachMapping(function (mapping) {
      var newMapping = {
        generated: {
          line: mapping.generatedLine,
          column: mapping.generatedColumn
        }
      };

      if (mapping.source != null) {
        newMapping.source = mapping.source;
        if (sourceRoot != null) {
          newMapping.source = util$2.relative(sourceRoot, newMapping.source);
        }

        newMapping.original = {
          line: mapping.originalLine,
          column: mapping.originalColumn
        };

        if (mapping.name != null) {
          newMapping.name = mapping.name;
        }
      }

      generator.addMapping(newMapping);
    });
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var sourceRelative = sourceFile;
      if (sourceRoot !== null) {
        sourceRelative = util$2.relative(sourceRoot, sourceFile);
      }

      if (!generator._sources.has(sourceRelative)) {
        generator._sources.add(sourceRelative);
      }

      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        generator.setSourceContent(sourceFile, content);
      }
    });
    return generator;
  };

/**
 * Add a single mapping from original source line and column to the generated
 * source's line and column for this source map being created. The mapping
 * object should have the following properties:
 *
 *   - generated: An object with the generated line and column positions.
 *   - original: An object with the original line and column positions.
 *   - source: The original source file (relative to the sourceRoot).
 *   - name: An optional original token name for this mapping.
 */
SourceMapGenerator$1.prototype.addMapping =
  function SourceMapGenerator_addMapping(aArgs) {
    var generated = util$2.getArg(aArgs, 'generated');
    var original = util$2.getArg(aArgs, 'original', null);
    var source = util$2.getArg(aArgs, 'source', null);
    var name = util$2.getArg(aArgs, 'name', null);

    if (!this._skipValidation) {
      this._validateMapping(generated, original, source, name);
    }

    if (source != null) {
      source = String(source);
      if (!this._sources.has(source)) {
        this._sources.add(source);
      }
    }

    if (name != null) {
      name = String(name);
      if (!this._names.has(name)) {
        this._names.add(name);
      }
    }

    this._mappings.add({
      generatedLine: generated.line,
      generatedColumn: generated.column,
      originalLine: original != null && original.line,
      originalColumn: original != null && original.column,
      source: source,
      name: name
    });
  };

/**
 * Set the source content for a source file.
 */
SourceMapGenerator$1.prototype.setSourceContent =
  function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
    var source = aSourceFile;
    if (this._sourceRoot != null) {
      source = util$2.relative(this._sourceRoot, source);
    }

    if (aSourceContent != null) {
      // Add the source content to the _sourcesContents map.
      // Create a new _sourcesContents map if the property is null.
      if (!this._sourcesContents) {
        this._sourcesContents = Object.create(null);
      }
      this._sourcesContents[util$2.toSetString(source)] = aSourceContent;
    } else if (this._sourcesContents) {
      // Remove the source file from the _sourcesContents map.
      // If the _sourcesContents map is empty, set the property to null.
      delete this._sourcesContents[util$2.toSetString(source)];
      if (Object.keys(this._sourcesContents).length === 0) {
        this._sourcesContents = null;
      }
    }
  };

/**
 * Applies the mappings of a sub-source-map for a specific source file to the
 * source map being generated. Each mapping to the supplied source file is
 * rewritten using the supplied source map. Note: The resolution for the
 * resulting mappings is the minimium of this map and the supplied map.
 *
 * @param aSourceMapConsumer The source map to be applied.
 * @param aSourceFile Optional. The filename of the source file.
 *        If omitted, SourceMapConsumer's file property will be used.
 * @param aSourceMapPath Optional. The dirname of the path to the source map
 *        to be applied. If relative, it is relative to the SourceMapConsumer.
 *        This parameter is needed when the two source maps aren't in the same
 *        directory, and the source map to be applied contains relative source
 *        paths. If so, those relative source paths need to be rewritten
 *        relative to the SourceMapGenerator.
 */
SourceMapGenerator$1.prototype.applySourceMap =
  function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
    var sourceFile = aSourceFile;
    // If aSourceFile is omitted, we will use the file property of the SourceMap
    if (aSourceFile == null) {
      if (aSourceMapConsumer.file == null) {
        throw new Error(
          'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +
          'or the source map\'s "file" property. Both were omitted.'
        );
      }
      sourceFile = aSourceMapConsumer.file;
    }
    var sourceRoot = this._sourceRoot;
    // Make "sourceFile" relative if an absolute Url is passed.
    if (sourceRoot != null) {
      sourceFile = util$2.relative(sourceRoot, sourceFile);
    }
    // Applying the SourceMap can add and remove items from the sources and
    // the names array.
    var newSources = new ArraySet$1();
    var newNames = new ArraySet$1();

    // Find mappings for the "sourceFile"
    this._mappings.unsortedForEach(function (mapping) {
      if (mapping.source === sourceFile && mapping.originalLine != null) {
        // Check if it can be mapped by the source map, then update the mapping.
        var original = aSourceMapConsumer.originalPositionFor({
          line: mapping.originalLine,
          column: mapping.originalColumn
        });
        if (original.source != null) {
          // Copy mapping
          mapping.source = original.source;
          if (aSourceMapPath != null) {
            mapping.source = util$2.join(aSourceMapPath, mapping.source);
          }
          if (sourceRoot != null) {
            mapping.source = util$2.relative(sourceRoot, mapping.source);
          }
          mapping.originalLine = original.line;
          mapping.originalColumn = original.column;
          if (original.name != null) {
            mapping.name = original.name;
          }
        }
      }

      var source = mapping.source;
      if (source != null && !newSources.has(source)) {
        newSources.add(source);
      }

      var name = mapping.name;
      if (name != null && !newNames.has(name)) {
        newNames.add(name);
      }

    }, this);
    this._sources = newSources;
    this._names = newNames;

    // Copy sourcesContents of applied map.
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        if (aSourceMapPath != null) {
          sourceFile = util$2.join(aSourceMapPath, sourceFile);
        }
        if (sourceRoot != null) {
          sourceFile = util$2.relative(sourceRoot, sourceFile);
        }
        this.setSourceContent(sourceFile, content);
      }
    }, this);
  };

/**
 * A mapping can have one of the three levels of data:
 *
 *   1. Just the generated position.
 *   2. The Generated position, original position, and original source.
 *   3. Generated and original position, original source, as well as a name
 *      token.
 *
 * To maintain consistency, we validate that any new mapping being added falls
 * in to one of these categories.
 */
SourceMapGenerator$1.prototype._validateMapping =
  function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,
                                              aName) {
    // When aOriginal is truthy but has empty values for .line and .column,
    // it is most likely a programmer error. In this case we throw a very
    // specific error message to try to guide them the right way.
    // For example: https://github.com/Polymer/polymer-bundler/pull/519
    if (aOriginal && typeof aOriginal.line !== 'number' && typeof aOriginal.column !== 'number') {
        throw new Error(
            'original.line and original.column are not numbers -- you probably meant to omit ' +
            'the original mapping entirely and only map the generated position. If so, pass ' +
            'null for the original mapping instead of an object with empty or null values.'
        );
    }

    if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
        && aGenerated.line > 0 && aGenerated.column >= 0
        && !aOriginal && !aSource && !aName) {
      // Case 1.
      return;
    }
    else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
             && aOriginal && 'line' in aOriginal && 'column' in aOriginal
             && aGenerated.line > 0 && aGenerated.column >= 0
             && aOriginal.line > 0 && aOriginal.column >= 0
             && aSource) {
      // Cases 2 and 3.
      return;
    }
    else {
      throw new Error('Invalid mapping: ' + JSON.stringify({
        generated: aGenerated,
        source: aSource,
        original: aOriginal,
        name: aName
      }));
    }
  };

/**
 * Serialize the accumulated mappings in to the stream of base 64 VLQs
 * specified by the source map format.
 */
SourceMapGenerator$1.prototype._serializeMappings =
  function SourceMapGenerator_serializeMappings() {
    var previousGeneratedColumn = 0;
    var previousGeneratedLine = 1;
    var previousOriginalColumn = 0;
    var previousOriginalLine = 0;
    var previousName = 0;
    var previousSource = 0;
    var result = '';
    var next;
    var mapping;
    var nameIdx;
    var sourceIdx;

    var mappings = this._mappings.toArray();
    for (var i = 0, len = mappings.length; i < len; i++) {
      mapping = mappings[i];
      next = '';

      if (mapping.generatedLine !== previousGeneratedLine) {
        previousGeneratedColumn = 0;
        while (mapping.generatedLine !== previousGeneratedLine) {
          next += ';';
          previousGeneratedLine++;
        }
      }
      else {
        if (i > 0) {
          if (!util$2.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {
            continue;
          }
          next += ',';
        }
      }

      next += base64VLQ$1.encode(mapping.generatedColumn
                                 - previousGeneratedColumn);
      previousGeneratedColumn = mapping.generatedColumn;

      if (mapping.source != null) {
        sourceIdx = this._sources.indexOf(mapping.source);
        next += base64VLQ$1.encode(sourceIdx - previousSource);
        previousSource = sourceIdx;

        // lines are stored 0-based in SourceMap spec version 3
        next += base64VLQ$1.encode(mapping.originalLine - 1
                                   - previousOriginalLine);
        previousOriginalLine = mapping.originalLine - 1;

        next += base64VLQ$1.encode(mapping.originalColumn
                                   - previousOriginalColumn);
        previousOriginalColumn = mapping.originalColumn;

        if (mapping.name != null) {
          nameIdx = this._names.indexOf(mapping.name);
          next += base64VLQ$1.encode(nameIdx - previousName);
          previousName = nameIdx;
        }
      }

      result += next;
    }

    return result;
  };

SourceMapGenerator$1.prototype._generateSourcesContent =
  function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
    return aSources.map(function (source) {
      if (!this._sourcesContents) {
        return null;
      }
      if (aSourceRoot != null) {
        source = util$2.relative(aSourceRoot, source);
      }
      var key = util$2.toSetString(source);
      return Object.prototype.hasOwnProperty.call(this._sourcesContents, key)
        ? this._sourcesContents[key]
        : null;
    }, this);
  };

/**
 * Externalize the source map.
 */
SourceMapGenerator$1.prototype.toJSON =
  function SourceMapGenerator_toJSON() {
    var map = {
      version: this._version,
      sources: this._sources.toArray(),
      names: this._names.toArray(),
      mappings: this._serializeMappings()
    };
    if (this._file != null) {
      map.file = this._file;
    }
    if (this._sourceRoot != null) {
      map.sourceRoot = this._sourceRoot;
    }
    if (this._sourcesContents) {
      map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
    }

    return map;
  };

/**
 * Render the source map being generated to a string.
 */
SourceMapGenerator$1.prototype.toString =
  function SourceMapGenerator_toString() {
    return JSON.stringify(this.toJSON());
  };

sourceMapGenerator.SourceMapGenerator = SourceMapGenerator$1;

var sourceMapConsumer = {};

var binarySearch$1 = {};

/* -*- Mode: js; js-indent-level: 2; -*- */

(function (exports) {
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

exports.GREATEST_LOWER_BOUND = 1;
exports.LEAST_UPPER_BOUND = 2;

/**
 * Recursive implementation of binary search.
 *
 * @param aLow Indices here and lower do not contain the needle.
 * @param aHigh Indices here and higher do not contain the needle.
 * @param aNeedle The element being searched for.
 * @param aHaystack The non-empty array being searched.
 * @param aCompare Function which takes two elements and returns -1, 0, or 1.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 */
function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
  // This function terminates when one of the following is true:
  //
  //   1. We find the exact element we are looking for.
  //
  //   2. We did not find the exact element, but we can return the index of
  //      the next-closest element.
  //
  //   3. We did not find the exact element, and there is no next-closest
  //      element than the one we are searching for, so we return -1.
  var mid = Math.floor((aHigh - aLow) / 2) + aLow;
  var cmp = aCompare(aNeedle, aHaystack[mid], true);
  if (cmp === 0) {
    // Found the element we are looking for.
    return mid;
  }
  else if (cmp > 0) {
    // Our needle is greater than aHaystack[mid].
    if (aHigh - mid > 1) {
      // The element is in the upper half.
      return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
    }

    // The exact needle element was not found in this haystack. Determine if
    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return aHigh < aHaystack.length ? aHigh : -1;
    } else {
      return mid;
    }
  }
  else {
    // Our needle is less than aHaystack[mid].
    if (mid - aLow > 1) {
      // The element is in the lower half.
      return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
    }

    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return mid;
    } else {
      return aLow < 0 ? -1 : aLow;
    }
  }
}

/**
 * This is an implementation of binary search which will always try and return
 * the index of the closest element if there is no exact hit. This is because
 * mappings between original and generated line/col pairs are single points,
 * and there is an implicit region between each of them, so a miss just means
 * that you aren't on the very start of a region.
 *
 * @param aNeedle The element you are looking for.
 * @param aHaystack The array that is being searched.
 * @param aCompare A function which takes the needle and an element in the
 *     array and returns -1, 0, or 1 depending on whether the needle is less
 *     than, equal to, or greater than the element, respectively.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
 */
exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
  if (aHaystack.length === 0) {
    return -1;
  }

  var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,
                              aCompare, aBias || exports.GREATEST_LOWER_BOUND);
  if (index < 0) {
    return -1;
  }

  // We have found either the exact element, or the next-closest element than
  // the one we are searching for. However, there may be more than one such
  // element. Make sure we always return the smallest of these.
  while (index - 1 >= 0) {
    if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
      break;
    }
    --index;
  }

  return index;
};
}(binarySearch$1));

var quickSort$1 = {};

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

// It turns out that some (most?) JavaScript engines don't self-host
// `Array.prototype.sort`. This makes sense because C++ will likely remain
// faster than JS when doing raw CPU-intensive sorting. However, when using a
// custom comparator function, calling back and forth between the VM's C++ and
// JIT'd JS is rather slow *and* loses JIT type information, resulting in
// worse generated code for the comparator function than would be optimal. In
// fact, when sorting with a comparator, these costs outweigh the benefits of
// sorting in C++. By using our own JS-implemented Quick Sort (below), we get
// a ~3500ms mean speed-up in `bench/bench.html`.

/**
 * Swap the elements indexed by `x` and `y` in the array `ary`.
 *
 * @param {Array} ary
 *        The array.
 * @param {Number} x
 *        The index of the first item.
 * @param {Number} y
 *        The index of the second item.
 */
function swap(ary, x, y) {
  var temp = ary[x];
  ary[x] = ary[y];
  ary[y] = temp;
}

/**
 * Returns a random integer within the range `low .. high` inclusive.
 *
 * @param {Number} low
 *        The lower bound on the range.
 * @param {Number} high
 *        The upper bound on the range.
 */
function randomIntInRange(low, high) {
  return Math.round(low + (Math.random() * (high - low)));
}

/**
 * The Quick Sort algorithm.
 *
 * @param {Array} ary
 *        An array to sort.
 * @param {function} comparator
 *        Function to use to compare two items.
 * @param {Number} p
 *        Start index of the array
 * @param {Number} r
 *        End index of the array
 */
function doQuickSort(ary, comparator, p, r) {
  // If our lower bound is less than our upper bound, we (1) partition the
  // array into two pieces and (2) recurse on each half. If it is not, this is
  // the empty array and our base case.

  if (p < r) {
    // (1) Partitioning.
    //
    // The partitioning chooses a pivot between `p` and `r` and moves all
    // elements that are less than or equal to the pivot to the before it, and
    // all the elements that are greater than it after it. The effect is that
    // once partition is done, the pivot is in the exact place it will be when
    // the array is put in sorted order, and it will not need to be moved
    // again. This runs in O(n) time.

    // Always choose a random pivot so that an input array which is reverse
    // sorted does not cause O(n^2) running time.
    var pivotIndex = randomIntInRange(p, r);
    var i = p - 1;

    swap(ary, pivotIndex, r);
    var pivot = ary[r];

    // Immediately after `j` is incremented in this loop, the following hold
    // true:
    //
    //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
    //
    //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
    for (var j = p; j < r; j++) {
      if (comparator(ary[j], pivot) <= 0) {
        i += 1;
        swap(ary, i, j);
      }
    }

    swap(ary, i + 1, j);
    var q = i + 1;

    // (2) Recurse on each half.

    doQuickSort(ary, comparator, p, q - 1);
    doQuickSort(ary, comparator, q + 1, r);
  }
}

/**
 * Sort the given array in-place with the given comparator function.
 *
 * @param {Array} ary
 *        An array to sort.
 * @param {function} comparator
 *        Function to use to compare two items.
 */
quickSort$1.quickSort = function (ary, comparator) {
  doQuickSort(ary, comparator, 0, ary.length - 1);
};

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var util$1 = util$5;
var binarySearch = binarySearch$1;
var ArraySet = arraySet.ArraySet;
var base64VLQ = base64Vlq;
var quickSort = quickSort$1.quickSort;

function SourceMapConsumer$1(aSourceMap, aSourceMapURL) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = util$1.parseSourceMapInput(aSourceMap);
  }

  return sourceMap.sections != null
    ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL)
    : new BasicSourceMapConsumer(sourceMap, aSourceMapURL);
}

SourceMapConsumer$1.fromSourceMap = function(aSourceMap, aSourceMapURL) {
  return BasicSourceMapConsumer.fromSourceMap(aSourceMap, aSourceMapURL);
};

/**
 * The version of the source mapping spec that we are consuming.
 */
SourceMapConsumer$1.prototype._version = 3;

// `__generatedMappings` and `__originalMappings` are arrays that hold the
// parsed mapping coordinates from the source map's "mappings" attribute. They
// are lazily instantiated, accessed via the `_generatedMappings` and
// `_originalMappings` getters respectively, and we only parse the mappings
// and create these arrays once queried for a source location. We jump through
// these hoops because there can be many thousands of mappings, and parsing
// them is expensive, so we only want to do it if we must.
//
// Each object in the arrays is of the form:
//
//     {
//       generatedLine: The line number in the generated code,
//       generatedColumn: The column number in the generated code,
//       source: The path to the original source file that generated this
//               chunk of code,
//       originalLine: The line number in the original source that
//                     corresponds to this chunk of generated code,
//       originalColumn: The column number in the original source that
//                       corresponds to this chunk of generated code,
//       name: The name of the original symbol which generated this chunk of
//             code.
//     }
//
// All properties except for `generatedLine` and `generatedColumn` can be
// `null`.
//
// `_generatedMappings` is ordered by the generated positions.
//
// `_originalMappings` is ordered by the original positions.

SourceMapConsumer$1.prototype.__generatedMappings = null;
Object.defineProperty(SourceMapConsumer$1.prototype, '_generatedMappings', {
  configurable: true,
  enumerable: true,
  get: function () {
    if (!this.__generatedMappings) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__generatedMappings;
  }
});

SourceMapConsumer$1.prototype.__originalMappings = null;
Object.defineProperty(SourceMapConsumer$1.prototype, '_originalMappings', {
  configurable: true,
  enumerable: true,
  get: function () {
    if (!this.__originalMappings) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__originalMappings;
  }
});

SourceMapConsumer$1.prototype._charIsMappingSeparator =
  function SourceMapConsumer_charIsMappingSeparator(aStr, index) {
    var c = aStr.charAt(index);
    return c === ";" || c === ",";
  };

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
SourceMapConsumer$1.prototype._parseMappings =
  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    throw new Error("Subclasses must implement _parseMappings");
  };

SourceMapConsumer$1.GENERATED_ORDER = 1;
SourceMapConsumer$1.ORIGINAL_ORDER = 2;

SourceMapConsumer$1.GREATEST_LOWER_BOUND = 1;
SourceMapConsumer$1.LEAST_UPPER_BOUND = 2;

/**
 * Iterate over each mapping between an original source/line/column and a
 * generated line/column in this source map.
 *
 * @param Function aCallback
 *        The function that is called with each mapping.
 * @param Object aContext
 *        Optional. If specified, this object will be the value of `this` every
 *        time that `aCallback` is called.
 * @param aOrder
 *        Either `SourceMapConsumer.GENERATED_ORDER` or
 *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
 *        iterate over the mappings sorted by the generated file's line/column
 *        order or the original's source/line/column order, respectively. Defaults to
 *        `SourceMapConsumer.GENERATED_ORDER`.
 */
SourceMapConsumer$1.prototype.eachMapping =
  function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
    var context = aContext || null;
    var order = aOrder || SourceMapConsumer$1.GENERATED_ORDER;

    var mappings;
    switch (order) {
    case SourceMapConsumer$1.GENERATED_ORDER:
      mappings = this._generatedMappings;
      break;
    case SourceMapConsumer$1.ORIGINAL_ORDER:
      mappings = this._originalMappings;
      break;
    default:
      throw new Error("Unknown order of iteration.");
    }

    var sourceRoot = this.sourceRoot;
    mappings.map(function (mapping) {
      var source = mapping.source === null ? null : this._sources.at(mapping.source);
      source = util$1.computeSourceURL(sourceRoot, source, this._sourceMapURL);
      return {
        source: source,
        generatedLine: mapping.generatedLine,
        generatedColumn: mapping.generatedColumn,
        originalLine: mapping.originalLine,
        originalColumn: mapping.originalColumn,
        name: mapping.name === null ? null : this._names.at(mapping.name)
      };
    }, this).forEach(aCallback, context);
  };

/**
 * Returns all generated line and column information for the original source,
 * line, and column provided. If no column is provided, returns all mappings
 * corresponding to a either the line we are searching for or the next
 * closest line that has any mappings. Otherwise, returns all mappings
 * corresponding to the given line and either the column we are searching for
 * or the next closest column that has any offsets.
 *
 * The only argument is an object with the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.  The line number is 1-based.
 *   - column: Optional. the column number in the original source.
 *    The column number is 0-based.
 *
 * and an array of objects is returned, each with the following properties:
 *
 *   - line: The line number in the generated source, or null.  The
 *    line number is 1-based.
 *   - column: The column number in the generated source, or null.
 *    The column number is 0-based.
 */
SourceMapConsumer$1.prototype.allGeneratedPositionsFor =
  function SourceMapConsumer_allGeneratedPositionsFor(aArgs) {
    var line = util$1.getArg(aArgs, 'line');

    // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
    // returns the index of the closest mapping less than the needle. By
    // setting needle.originalColumn to 0, we thus find the last mapping for
    // the given line, provided such a mapping exists.
    var needle = {
      source: util$1.getArg(aArgs, 'source'),
      originalLine: line,
      originalColumn: util$1.getArg(aArgs, 'column', 0)
    };

    needle.source = this._findSourceIndex(needle.source);
    if (needle.source < 0) {
      return [];
    }

    var mappings = [];

    var index = this._findMapping(needle,
                                  this._originalMappings,
                                  "originalLine",
                                  "originalColumn",
                                  util$1.compareByOriginalPositions,
                                  binarySearch.LEAST_UPPER_BOUND);
    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (aArgs.column === undefined) {
        var originalLine = mapping.originalLine;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we found. Since
        // mappings are sorted, this is guaranteed to find all mappings for
        // the line we found.
        while (mapping && mapping.originalLine === originalLine) {
          mappings.push({
            line: util$1.getArg(mapping, 'generatedLine', null),
            column: util$1.getArg(mapping, 'generatedColumn', null),
            lastColumn: util$1.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      } else {
        var originalColumn = mapping.originalColumn;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we were searching for.
        // Since mappings are sorted, this is guaranteed to find all mappings for
        // the line we are searching for.
        while (mapping &&
               mapping.originalLine === line &&
               mapping.originalColumn == originalColumn) {
          mappings.push({
            line: util$1.getArg(mapping, 'generatedLine', null),
            column: util$1.getArg(mapping, 'generatedColumn', null),
            lastColumn: util$1.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      }
    }

    return mappings;
  };

sourceMapConsumer.SourceMapConsumer = SourceMapConsumer$1;

/**
 * A BasicSourceMapConsumer instance represents a parsed source map which we can
 * query for information about the original file positions by giving it a file
 * position in the generated source.
 *
 * The first parameter is the raw source map (either as a JSON string, or
 * already parsed to an object). According to the spec, source maps have the
 * following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - sources: An array of URLs to the original source files.
 *   - names: An array of identifiers which can be referrenced by individual mappings.
 *   - sourceRoot: Optional. The URL root from which all sources are relative.
 *   - sourcesContent: Optional. An array of contents of the original source files.
 *   - mappings: A string of base64 VLQs which contain the actual mappings.
 *   - file: Optional. The generated file this source map is associated with.
 *
 * Here is an example source map, taken from the source map spec[0]:
 *
 *     {
 *       version : 3,
 *       file: "out.js",
 *       sourceRoot : "",
 *       sources: ["foo.js", "bar.js"],
 *       names: ["src", "maps", "are", "fun"],
 *       mappings: "AA,AB;;ABCDE;"
 *     }
 *
 * The second parameter, if given, is a string whose value is the URL
 * at which the source map was found.  This URL is used to compute the
 * sources array.
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
 */
function BasicSourceMapConsumer(aSourceMap, aSourceMapURL) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = util$1.parseSourceMapInput(aSourceMap);
  }

  var version = util$1.getArg(sourceMap, 'version');
  var sources = util$1.getArg(sourceMap, 'sources');
  // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
  // requires the array) to play nice here.
  var names = util$1.getArg(sourceMap, 'names', []);
  var sourceRoot = util$1.getArg(sourceMap, 'sourceRoot', null);
  var sourcesContent = util$1.getArg(sourceMap, 'sourcesContent', null);
  var mappings = util$1.getArg(sourceMap, 'mappings');
  var file = util$1.getArg(sourceMap, 'file', null);

  // Once again, Sass deviates from the spec and supplies the version as a
  // string rather than a number, so we use loose equality checking here.
  if (version != this._version) {
    throw new Error('Unsupported version: ' + version);
  }

  if (sourceRoot) {
    sourceRoot = util$1.normalize(sourceRoot);
  }

  sources = sources
    .map(String)
    // Some source maps produce relative source paths like "./foo.js" instead of
    // "foo.js".  Normalize these first so that future comparisons will succeed.
    // See bugzil.la/1090768.
    .map(util$1.normalize)
    // Always ensure that absolute sources are internally stored relative to
    // the source root, if the source root is absolute. Not doing this would
    // be particularly problematic when the source root is a prefix of the
    // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
    .map(function (source) {
      return sourceRoot && util$1.isAbsolute(sourceRoot) && util$1.isAbsolute(source)
        ? util$1.relative(sourceRoot, source)
        : source;
    });

  // Pass `true` below to allow duplicate names and sources. While source maps
  // are intended to be compressed and deduplicated, the TypeScript compiler
  // sometimes generates source maps with duplicates in them. See Github issue
  // #72 and bugzil.la/889492.
  this._names = ArraySet.fromArray(names.map(String), true);
  this._sources = ArraySet.fromArray(sources, true);

  this._absoluteSources = this._sources.toArray().map(function (s) {
    return util$1.computeSourceURL(sourceRoot, s, aSourceMapURL);
  });

  this.sourceRoot = sourceRoot;
  this.sourcesContent = sourcesContent;
  this._mappings = mappings;
  this._sourceMapURL = aSourceMapURL;
  this.file = file;
}

BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer$1.prototype);
BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer$1;

/**
 * Utility function to find the index of a source.  Returns -1 if not
 * found.
 */
BasicSourceMapConsumer.prototype._findSourceIndex = function(aSource) {
  var relativeSource = aSource;
  if (this.sourceRoot != null) {
    relativeSource = util$1.relative(this.sourceRoot, relativeSource);
  }

  if (this._sources.has(relativeSource)) {
    return this._sources.indexOf(relativeSource);
  }

  // Maybe aSource is an absolute URL as returned by |sources|.  In
  // this case we can't simply undo the transform.
  var i;
  for (i = 0; i < this._absoluteSources.length; ++i) {
    if (this._absoluteSources[i] == aSource) {
      return i;
    }
  }

  return -1;
};

/**
 * Create a BasicSourceMapConsumer from a SourceMapGenerator.
 *
 * @param SourceMapGenerator aSourceMap
 *        The source map that will be consumed.
 * @param String aSourceMapURL
 *        The URL at which the source map can be found (optional)
 * @returns BasicSourceMapConsumer
 */
BasicSourceMapConsumer.fromSourceMap =
  function SourceMapConsumer_fromSourceMap(aSourceMap, aSourceMapURL) {
    var smc = Object.create(BasicSourceMapConsumer.prototype);

    var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
    var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
    smc.sourceRoot = aSourceMap._sourceRoot;
    smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(),
                                                            smc.sourceRoot);
    smc.file = aSourceMap._file;
    smc._sourceMapURL = aSourceMapURL;
    smc._absoluteSources = smc._sources.toArray().map(function (s) {
      return util$1.computeSourceURL(smc.sourceRoot, s, aSourceMapURL);
    });

    // Because we are modifying the entries (by converting string sources and
    // names to indices into the sources and names ArraySets), we have to make
    // a copy of the entry or else bad things happen. Shared mutable state
    // strikes again! See github issue #191.

    var generatedMappings = aSourceMap._mappings.toArray().slice();
    var destGeneratedMappings = smc.__generatedMappings = [];
    var destOriginalMappings = smc.__originalMappings = [];

    for (var i = 0, length = generatedMappings.length; i < length; i++) {
      var srcMapping = generatedMappings[i];
      var destMapping = new Mapping;
      destMapping.generatedLine = srcMapping.generatedLine;
      destMapping.generatedColumn = srcMapping.generatedColumn;

      if (srcMapping.source) {
        destMapping.source = sources.indexOf(srcMapping.source);
        destMapping.originalLine = srcMapping.originalLine;
        destMapping.originalColumn = srcMapping.originalColumn;

        if (srcMapping.name) {
          destMapping.name = names.indexOf(srcMapping.name);
        }

        destOriginalMappings.push(destMapping);
      }

      destGeneratedMappings.push(destMapping);
    }

    quickSort(smc.__originalMappings, util$1.compareByOriginalPositions);

    return smc;
  };

/**
 * The version of the source mapping spec that we are consuming.
 */
BasicSourceMapConsumer.prototype._version = 3;

/**
 * The list of original sources.
 */
Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
  get: function () {
    return this._absoluteSources.slice();
  }
});

/**
 * Provide the JIT with a nice shape / hidden class.
 */
function Mapping() {
  this.generatedLine = 0;
  this.generatedColumn = 0;
  this.source = null;
  this.originalLine = null;
  this.originalColumn = null;
  this.name = null;
}

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
BasicSourceMapConsumer.prototype._parseMappings =
  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    var generatedLine = 1;
    var previousGeneratedColumn = 0;
    var previousOriginalLine = 0;
    var previousOriginalColumn = 0;
    var previousSource = 0;
    var previousName = 0;
    var length = aStr.length;
    var index = 0;
    var cachedSegments = {};
    var temp = {};
    var originalMappings = [];
    var generatedMappings = [];
    var mapping, str, segment, end, value;

    while (index < length) {
      if (aStr.charAt(index) === ';') {
        generatedLine++;
        index++;
        previousGeneratedColumn = 0;
      }
      else if (aStr.charAt(index) === ',') {
        index++;
      }
      else {
        mapping = new Mapping();
        mapping.generatedLine = generatedLine;

        // Because each offset is encoded relative to the previous one,
        // many segments often have the same encoding. We can exploit this
        // fact by caching the parsed variable length fields of each segment,
        // allowing us to avoid a second parse if we encounter the same
        // segment again.
        for (end = index; end < length; end++) {
          if (this._charIsMappingSeparator(aStr, end)) {
            break;
          }
        }
        str = aStr.slice(index, end);

        segment = cachedSegments[str];
        if (segment) {
          index += str.length;
        } else {
          segment = [];
          while (index < end) {
            base64VLQ.decode(aStr, index, temp);
            value = temp.value;
            index = temp.rest;
            segment.push(value);
          }

          if (segment.length === 2) {
            throw new Error('Found a source, but no line and column');
          }

          if (segment.length === 3) {
            throw new Error('Found a source and line, but no column');
          }

          cachedSegments[str] = segment;
        }

        // Generated column.
        mapping.generatedColumn = previousGeneratedColumn + segment[0];
        previousGeneratedColumn = mapping.generatedColumn;

        if (segment.length > 1) {
          // Original source.
          mapping.source = previousSource + segment[1];
          previousSource += segment[1];

          // Original line.
          mapping.originalLine = previousOriginalLine + segment[2];
          previousOriginalLine = mapping.originalLine;
          // Lines are stored 0-based
          mapping.originalLine += 1;

          // Original column.
          mapping.originalColumn = previousOriginalColumn + segment[3];
          previousOriginalColumn = mapping.originalColumn;

          if (segment.length > 4) {
            // Original name.
            mapping.name = previousName + segment[4];
            previousName += segment[4];
          }
        }

        generatedMappings.push(mapping);
        if (typeof mapping.originalLine === 'number') {
          originalMappings.push(mapping);
        }
      }
    }

    quickSort(generatedMappings, util$1.compareByGeneratedPositionsDeflated);
    this.__generatedMappings = generatedMappings;

    quickSort(originalMappings, util$1.compareByOriginalPositions);
    this.__originalMappings = originalMappings;
  };

/**
 * Find the mapping that best matches the hypothetical "needle" mapping that
 * we are searching for in the given "haystack" of mappings.
 */
BasicSourceMapConsumer.prototype._findMapping =
  function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName,
                                         aColumnName, aComparator, aBias) {
    // To return the position we are searching for, we must first find the
    // mapping for the given position and then return the opposite position it
    // points to. Because the mappings are sorted, we can use binary search to
    // find the best mapping.

    if (aNeedle[aLineName] <= 0) {
      throw new TypeError('Line must be greater than or equal to 1, got '
                          + aNeedle[aLineName]);
    }
    if (aNeedle[aColumnName] < 0) {
      throw new TypeError('Column must be greater than or equal to 0, got '
                          + aNeedle[aColumnName]);
    }

    return binarySearch.search(aNeedle, aMappings, aComparator, aBias);
  };

/**
 * Compute the last column for each generated mapping. The last column is
 * inclusive.
 */
BasicSourceMapConsumer.prototype.computeColumnSpans =
  function SourceMapConsumer_computeColumnSpans() {
    for (var index = 0; index < this._generatedMappings.length; ++index) {
      var mapping = this._generatedMappings[index];

      // Mappings do not contain a field for the last generated columnt. We
      // can come up with an optimistic estimate, however, by assuming that
      // mappings are contiguous (i.e. given two consecutive mappings, the
      // first mapping ends where the second one starts).
      if (index + 1 < this._generatedMappings.length) {
        var nextMapping = this._generatedMappings[index + 1];

        if (mapping.generatedLine === nextMapping.generatedLine) {
          mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1;
          continue;
        }
      }

      // The last mapping for each line spans the entire line.
      mapping.lastGeneratedColumn = Infinity;
    }
  };

/**
 * Returns the original source, line, and column information for the generated
 * source's line and column positions provided. The only argument is an object
 * with the following properties:
 *
 *   - line: The line number in the generated source.  The line number
 *     is 1-based.
 *   - column: The column number in the generated source.  The column
 *     number is 0-based.
 *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
 *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
 *
 * and an object is returned with the following properties:
 *
 *   - source: The original source file, or null.
 *   - line: The line number in the original source, or null.  The
 *     line number is 1-based.
 *   - column: The column number in the original source, or null.  The
 *     column number is 0-based.
 *   - name: The original identifier, or null.
 */
BasicSourceMapConsumer.prototype.originalPositionFor =
  function SourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util$1.getArg(aArgs, 'line'),
      generatedColumn: util$1.getArg(aArgs, 'column')
    };

    var index = this._findMapping(
      needle,
      this._generatedMappings,
      "generatedLine",
      "generatedColumn",
      util$1.compareByGeneratedPositionsDeflated,
      util$1.getArg(aArgs, 'bias', SourceMapConsumer$1.GREATEST_LOWER_BOUND)
    );

    if (index >= 0) {
      var mapping = this._generatedMappings[index];

      if (mapping.generatedLine === needle.generatedLine) {
        var source = util$1.getArg(mapping, 'source', null);
        if (source !== null) {
          source = this._sources.at(source);
          source = util$1.computeSourceURL(this.sourceRoot, source, this._sourceMapURL);
        }
        var name = util$1.getArg(mapping, 'name', null);
        if (name !== null) {
          name = this._names.at(name);
        }
        return {
          source: source,
          line: util$1.getArg(mapping, 'originalLine', null),
          column: util$1.getArg(mapping, 'originalColumn', null),
          name: name
        };
      }
    }

    return {
      source: null,
      line: null,
      column: null,
      name: null
    };
  };

/**
 * Return true if we have the source content for every source in the source
 * map, false otherwise.
 */
BasicSourceMapConsumer.prototype.hasContentsOfAllSources =
  function BasicSourceMapConsumer_hasContentsOfAllSources() {
    if (!this.sourcesContent) {
      return false;
    }
    return this.sourcesContent.length >= this._sources.size() &&
      !this.sourcesContent.some(function (sc) { return sc == null; });
  };

/**
 * Returns the original source content. The only argument is the url of the
 * original source file. Returns null if no original source content is
 * available.
 */
BasicSourceMapConsumer.prototype.sourceContentFor =
  function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    if (!this.sourcesContent) {
      return null;
    }

    var index = this._findSourceIndex(aSource);
    if (index >= 0) {
      return this.sourcesContent[index];
    }

    var relativeSource = aSource;
    if (this.sourceRoot != null) {
      relativeSource = util$1.relative(this.sourceRoot, relativeSource);
    }

    var url;
    if (this.sourceRoot != null
        && (url = util$1.urlParse(this.sourceRoot))) {
      // XXX: file:// URIs and absolute paths lead to unexpected behavior for
      // many users. We can help them out when they expect file:// URIs to
      // behave like it would if they were running a local HTTP server. See
      // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
      var fileUriAbsPath = relativeSource.replace(/^file:\/\//, "");
      if (url.scheme == "file"
          && this._sources.has(fileUriAbsPath)) {
        return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)]
      }

      if ((!url.path || url.path == "/")
          && this._sources.has("/" + relativeSource)) {
        return this.sourcesContent[this._sources.indexOf("/" + relativeSource)];
      }
    }

    // This function is used recursively from
    // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
    // don't want to throw if we can't find the source - we just want to
    // return null, so we provide a flag to exit gracefully.
    if (nullOnMissing) {
      return null;
    }
    else {
      throw new Error('"' + relativeSource + '" is not in the SourceMap.');
    }
  };

/**
 * Returns the generated line and column information for the original source,
 * line, and column positions provided. The only argument is an object with
 * the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.  The line number
 *     is 1-based.
 *   - column: The column number in the original source.  The column
 *     number is 0-based.
 *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
 *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
 *
 * and an object is returned with the following properties:
 *
 *   - line: The line number in the generated source, or null.  The
 *     line number is 1-based.
 *   - column: The column number in the generated source, or null.
 *     The column number is 0-based.
 */
BasicSourceMapConsumer.prototype.generatedPositionFor =
  function SourceMapConsumer_generatedPositionFor(aArgs) {
    var source = util$1.getArg(aArgs, 'source');
    source = this._findSourceIndex(source);
    if (source < 0) {
      return {
        line: null,
        column: null,
        lastColumn: null
      };
    }

    var needle = {
      source: source,
      originalLine: util$1.getArg(aArgs, 'line'),
      originalColumn: util$1.getArg(aArgs, 'column')
    };

    var index = this._findMapping(
      needle,
      this._originalMappings,
      "originalLine",
      "originalColumn",
      util$1.compareByOriginalPositions,
      util$1.getArg(aArgs, 'bias', SourceMapConsumer$1.GREATEST_LOWER_BOUND)
    );

    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (mapping.source === needle.source) {
        return {
          line: util$1.getArg(mapping, 'generatedLine', null),
          column: util$1.getArg(mapping, 'generatedColumn', null),
          lastColumn: util$1.getArg(mapping, 'lastGeneratedColumn', null)
        };
      }
    }

    return {
      line: null,
      column: null,
      lastColumn: null
    };
  };

sourceMapConsumer.BasicSourceMapConsumer = BasicSourceMapConsumer;

/**
 * An IndexedSourceMapConsumer instance represents a parsed source map which
 * we can query for information. It differs from BasicSourceMapConsumer in
 * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
 * input.
 *
 * The first parameter is a raw source map (either as a JSON string, or already
 * parsed to an object). According to the spec for indexed source maps, they
 * have the following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - file: Optional. The generated file this source map is associated with.
 *   - sections: A list of section definitions.
 *
 * Each value under the "sections" field has two fields:
 *   - offset: The offset into the original specified at which this section
 *       begins to apply, defined as an object with a "line" and "column"
 *       field.
 *   - map: A source map definition. This source map could also be indexed,
 *       but doesn't have to be.
 *
 * Instead of the "map" field, it's also possible to have a "url" field
 * specifying a URL to retrieve a source map from, but that's currently
 * unsupported.
 *
 * Here's an example source map, taken from the source map spec[0], but
 * modified to omit a section which uses the "url" field.
 *
 *  {
 *    version : 3,
 *    file: "app.js",
 *    sections: [{
 *      offset: {line:100, column:10},
 *      map: {
 *        version : 3,
 *        file: "section.js",
 *        sources: ["foo.js", "bar.js"],
 *        names: ["src", "maps", "are", "fun"],
 *        mappings: "AAAA,E;;ABCDE;"
 *      }
 *    }],
 *  }
 *
 * The second parameter, if given, is a string whose value is the URL
 * at which the source map was found.  This URL is used to compute the
 * sources array.
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
 */
function IndexedSourceMapConsumer(aSourceMap, aSourceMapURL) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = util$1.parseSourceMapInput(aSourceMap);
  }

  var version = util$1.getArg(sourceMap, 'version');
  var sections = util$1.getArg(sourceMap, 'sections');

  if (version != this._version) {
    throw new Error('Unsupported version: ' + version);
  }

  this._sources = new ArraySet();
  this._names = new ArraySet();

  var lastOffset = {
    line: -1,
    column: 0
  };
  this._sections = sections.map(function (s) {
    if (s.url) {
      // The url field will require support for asynchronicity.
      // See https://github.com/mozilla/source-map/issues/16
      throw new Error('Support for url field in sections not implemented.');
    }
    var offset = util$1.getArg(s, 'offset');
    var offsetLine = util$1.getArg(offset, 'line');
    var offsetColumn = util$1.getArg(offset, 'column');

    if (offsetLine < lastOffset.line ||
        (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) {
      throw new Error('Section offsets must be ordered and non-overlapping.');
    }
    lastOffset = offset;

    return {
      generatedOffset: {
        // The offset fields are 0-based, but we use 1-based indices when
        // encoding/decoding from VLQ.
        generatedLine: offsetLine + 1,
        generatedColumn: offsetColumn + 1
      },
      consumer: new SourceMapConsumer$1(util$1.getArg(s, 'map'), aSourceMapURL)
    }
  });
}

IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer$1.prototype);
IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer$1;

/**
 * The version of the source mapping spec that we are consuming.
 */
IndexedSourceMapConsumer.prototype._version = 3;

/**
 * The list of original sources.
 */
Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
  get: function () {
    var sources = [];
    for (var i = 0; i < this._sections.length; i++) {
      for (var j = 0; j < this._sections[i].consumer.sources.length; j++) {
        sources.push(this._sections[i].consumer.sources[j]);
      }
    }
    return sources;
  }
});

/**
 * Returns the original source, line, and column information for the generated
 * source's line and column positions provided. The only argument is an object
 * with the following properties:
 *
 *   - line: The line number in the generated source.  The line number
 *     is 1-based.
 *   - column: The column number in the generated source.  The column
 *     number is 0-based.
 *
 * and an object is returned with the following properties:
 *
 *   - source: The original source file, or null.
 *   - line: The line number in the original source, or null.  The
 *     line number is 1-based.
 *   - column: The column number in the original source, or null.  The
 *     column number is 0-based.
 *   - name: The original identifier, or null.
 */
IndexedSourceMapConsumer.prototype.originalPositionFor =
  function IndexedSourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util$1.getArg(aArgs, 'line'),
      generatedColumn: util$1.getArg(aArgs, 'column')
    };

    // Find the section containing the generated position we're trying to map
    // to an original position.
    var sectionIndex = binarySearch.search(needle, this._sections,
      function(needle, section) {
        var cmp = needle.generatedLine - section.generatedOffset.generatedLine;
        if (cmp) {
          return cmp;
        }

        return (needle.generatedColumn -
                section.generatedOffset.generatedColumn);
      });
    var section = this._sections[sectionIndex];

    if (!section) {
      return {
        source: null,
        line: null,
        column: null,
        name: null
      };
    }

    return section.consumer.originalPositionFor({
      line: needle.generatedLine -
        (section.generatedOffset.generatedLine - 1),
      column: needle.generatedColumn -
        (section.generatedOffset.generatedLine === needle.generatedLine
         ? section.generatedOffset.generatedColumn - 1
         : 0),
      bias: aArgs.bias
    });
  };

/**
 * Return true if we have the source content for every source in the source
 * map, false otherwise.
 */
IndexedSourceMapConsumer.prototype.hasContentsOfAllSources =
  function IndexedSourceMapConsumer_hasContentsOfAllSources() {
    return this._sections.every(function (s) {
      return s.consumer.hasContentsOfAllSources();
    });
  };

/**
 * Returns the original source content. The only argument is the url of the
 * original source file. Returns null if no original source content is
 * available.
 */
IndexedSourceMapConsumer.prototype.sourceContentFor =
  function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      var content = section.consumer.sourceContentFor(aSource, true);
      if (content) {
        return content;
      }
    }
    if (nullOnMissing) {
      return null;
    }
    else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

/**
 * Returns the generated line and column information for the original source,
 * line, and column positions provided. The only argument is an object with
 * the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.  The line number
 *     is 1-based.
 *   - column: The column number in the original source.  The column
 *     number is 0-based.
 *
 * and an object is returned with the following properties:
 *
 *   - line: The line number in the generated source, or null.  The
 *     line number is 1-based. 
 *   - column: The column number in the generated source, or null.
 *     The column number is 0-based.
 */
IndexedSourceMapConsumer.prototype.generatedPositionFor =
  function IndexedSourceMapConsumer_generatedPositionFor(aArgs) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      // Only consider this section if the requested source is in the list of
      // sources of the consumer.
      if (section.consumer._findSourceIndex(util$1.getArg(aArgs, 'source')) === -1) {
        continue;
      }
      var generatedPosition = section.consumer.generatedPositionFor(aArgs);
      if (generatedPosition) {
        var ret = {
          line: generatedPosition.line +
            (section.generatedOffset.generatedLine - 1),
          column: generatedPosition.column +
            (section.generatedOffset.generatedLine === generatedPosition.line
             ? section.generatedOffset.generatedColumn - 1
             : 0)
        };
        return ret;
      }
    }

    return {
      line: null,
      column: null
    };
  };

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
IndexedSourceMapConsumer.prototype._parseMappings =
  function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    this.__generatedMappings = [];
    this.__originalMappings = [];
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];
      var sectionMappings = section.consumer._generatedMappings;
      for (var j = 0; j < sectionMappings.length; j++) {
        var mapping = sectionMappings[j];

        var source = section.consumer._sources.at(mapping.source);
        source = util$1.computeSourceURL(section.consumer.sourceRoot, source, this._sourceMapURL);
        this._sources.add(source);
        source = this._sources.indexOf(source);

        var name = null;
        if (mapping.name) {
          name = section.consumer._names.at(mapping.name);
          this._names.add(name);
          name = this._names.indexOf(name);
        }

        // The mappings coming from the consumer for the section have
        // generated positions relative to the start of the section, so we
        // need to offset them to be relative to the start of the concatenated
        // generated file.
        var adjustedMapping = {
          source: source,
          generatedLine: mapping.generatedLine +
            (section.generatedOffset.generatedLine - 1),
          generatedColumn: mapping.generatedColumn +
            (section.generatedOffset.generatedLine === mapping.generatedLine
            ? section.generatedOffset.generatedColumn - 1
            : 0),
          originalLine: mapping.originalLine,
          originalColumn: mapping.originalColumn,
          name: name
        };

        this.__generatedMappings.push(adjustedMapping);
        if (typeof adjustedMapping.originalLine === 'number') {
          this.__originalMappings.push(adjustedMapping);
        }
      }
    }

    quickSort(this.__generatedMappings, util$1.compareByGeneratedPositionsDeflated);
    quickSort(this.__originalMappings, util$1.compareByOriginalPositions);
  };

sourceMapConsumer.IndexedSourceMapConsumer = IndexedSourceMapConsumer;

/* -*- Mode: js; js-indent-level: 2; -*- */

/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var SourceMapGenerator = sourceMapGenerator.SourceMapGenerator;
var util = util$5;

// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other
// operating systems these days (capturing the result).
var REGEX_NEWLINE = /(\r?\n)/;

// Newline character code for charCodeAt() comparisons
var NEWLINE_CODE = 10;

// Private symbol for identifying `SourceNode`s when multiple versions of
// the source-map library are loaded. This MUST NOT CHANGE across
// versions!
var isSourceNode = "$$$isSourceNode$$$";

/**
 * SourceNodes provide a way to abstract over interpolating/concatenating
 * snippets of generated JavaScript source code while maintaining the line and
 * column information associated with the original source code.
 *
 * @param aLine The original line number.
 * @param aColumn The original column number.
 * @param aSource The original source's filename.
 * @param aChunks Optional. An array of strings which are snippets of
 *        generated JS, or other SourceNodes.
 * @param aName The original identifier.
 */
function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
  this.children = [];
  this.sourceContents = {};
  this.line = aLine == null ? null : aLine;
  this.column = aColumn == null ? null : aColumn;
  this.source = aSource == null ? null : aSource;
  this.name = aName == null ? null : aName;
  this[isSourceNode] = true;
  if (aChunks != null) this.add(aChunks);
}

/**
 * Creates a SourceNode from generated code and a SourceMapConsumer.
 *
 * @param aGeneratedCode The generated code
 * @param aSourceMapConsumer The SourceMap for the generated code
 * @param aRelativePath Optional. The path that relative sources in the
 *        SourceMapConsumer should be relative to.
 */
SourceNode.fromStringWithSourceMap =
  function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) {
    // The SourceNode we want to fill with the generated code
    // and the SourceMap
    var node = new SourceNode();

    // All even indices of this array are one line of the generated code,
    // while all odd indices are the newlines between two adjacent lines
    // (since `REGEX_NEWLINE` captures its match).
    // Processed fragments are accessed by calling `shiftNextLine`.
    var remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
    var remainingLinesIndex = 0;
    var shiftNextLine = function() {
      var lineContents = getNextLine();
      // The last line of a file might not have a newline.
      var newLine = getNextLine() || "";
      return lineContents + newLine;

      function getNextLine() {
        return remainingLinesIndex < remainingLines.length ?
            remainingLines[remainingLinesIndex++] : undefined;
      }
    };

    // We need to remember the position of "remainingLines"
    var lastGeneratedLine = 1, lastGeneratedColumn = 0;

    // The generate SourceNodes we need a code range.
    // To extract it current and last mapping is used.
    // Here we store the last mapping.
    var lastMapping = null;

    aSourceMapConsumer.eachMapping(function (mapping) {
      if (lastMapping !== null) {
        // We add the code from "lastMapping" to "mapping":
        // First check if there is a new line in between.
        if (lastGeneratedLine < mapping.generatedLine) {
          // Associate first line with "lastMapping"
          addMappingWithCode(lastMapping, shiftNextLine());
          lastGeneratedLine++;
          lastGeneratedColumn = 0;
          // The remaining code is added without mapping
        } else {
          // There is no new line in between.
          // Associate the code between "lastGeneratedColumn" and
          // "mapping.generatedColumn" with "lastMapping"
          var nextLine = remainingLines[remainingLinesIndex] || '';
          var code = nextLine.substr(0, mapping.generatedColumn -
                                        lastGeneratedColumn);
          remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn -
                                              lastGeneratedColumn);
          lastGeneratedColumn = mapping.generatedColumn;
          addMappingWithCode(lastMapping, code);
          // No more remaining code, continue
          lastMapping = mapping;
          return;
        }
      }
      // We add the generated code until the first mapping
      // to the SourceNode without any mapping.
      // Each line is added as separate string.
      while (lastGeneratedLine < mapping.generatedLine) {
        node.add(shiftNextLine());
        lastGeneratedLine++;
      }
      if (lastGeneratedColumn < mapping.generatedColumn) {
        var nextLine = remainingLines[remainingLinesIndex] || '';
        node.add(nextLine.substr(0, mapping.generatedColumn));
        remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn);
        lastGeneratedColumn = mapping.generatedColumn;
      }
      lastMapping = mapping;
    }, this);
    // We have processed all mappings.
    if (remainingLinesIndex < remainingLines.length) {
      if (lastMapping) {
        // Associate the remaining code in the current line with "lastMapping"
        addMappingWithCode(lastMapping, shiftNextLine());
      }
      // and add the remaining lines without any mapping
      node.add(remainingLines.splice(remainingLinesIndex).join(""));
    }

    // Copy sourcesContent into SourceNode
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        if (aRelativePath != null) {
          sourceFile = util.join(aRelativePath, sourceFile);
        }
        node.setSourceContent(sourceFile, content);
      }
    });

    return node;

    function addMappingWithCode(mapping, code) {
      if (mapping === null || mapping.source === undefined) {
        node.add(code);
      } else {
        var source = aRelativePath
          ? util.join(aRelativePath, mapping.source)
          : mapping.source;
        node.add(new SourceNode(mapping.originalLine,
                                mapping.originalColumn,
                                source,
                                code,
                                mapping.name));
      }
    }
  };

/**
 * Add a chunk of generated JS to this source node.
 *
 * @param aChunk A string snippet of generated JS code, another instance of
 *        SourceNode, or an array where each member is one of those things.
 */
SourceNode.prototype.add = function SourceNode_add(aChunk) {
  if (Array.isArray(aChunk)) {
    aChunk.forEach(function (chunk) {
      this.add(chunk);
    }, this);
  }
  else if (aChunk[isSourceNode] || typeof aChunk === "string") {
    if (aChunk) {
      this.children.push(aChunk);
    }
  }
  else {
    throw new TypeError(
      "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
    );
  }
  return this;
};

/**
 * Add a chunk of generated JS to the beginning of this source node.
 *
 * @param aChunk A string snippet of generated JS code, another instance of
 *        SourceNode, or an array where each member is one of those things.
 */
SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
  if (Array.isArray(aChunk)) {
    for (var i = aChunk.length-1; i >= 0; i--) {
      this.prepend(aChunk[i]);
    }
  }
  else if (aChunk[isSourceNode] || typeof aChunk === "string") {
    this.children.unshift(aChunk);
  }
  else {
    throw new TypeError(
      "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
    );
  }
  return this;
};

/**
 * Walk over the tree of JS snippets in this node and its children. The
 * walking function is called once for each snippet of JS and is passed that
 * snippet and the its original associated source's line/column location.
 *
 * @param aFn The traversal function.
 */
SourceNode.prototype.walk = function SourceNode_walk(aFn) {
  var chunk;
  for (var i = 0, len = this.children.length; i < len; i++) {
    chunk = this.children[i];
    if (chunk[isSourceNode]) {
      chunk.walk(aFn);
    }
    else {
      if (chunk !== '') {
        aFn(chunk, { source: this.source,
                     line: this.line,
                     column: this.column,
                     name: this.name });
      }
    }
  }
};

/**
 * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
 * each of `this.children`.
 *
 * @param aSep The separator.
 */
SourceNode.prototype.join = function SourceNode_join(aSep) {
  var newChildren;
  var i;
  var len = this.children.length;
  if (len > 0) {
    newChildren = [];
    for (i = 0; i < len-1; i++) {
      newChildren.push(this.children[i]);
      newChildren.push(aSep);
    }
    newChildren.push(this.children[i]);
    this.children = newChildren;
  }
  return this;
};

/**
 * Call String.prototype.replace on the very right-most source snippet. Useful
 * for trimming whitespace from the end of a source node, etc.
 *
 * @param aPattern The pattern to replace.
 * @param aReplacement The thing to replace the pattern with.
 */
SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
  var lastChild = this.children[this.children.length - 1];
  if (lastChild[isSourceNode]) {
    lastChild.replaceRight(aPattern, aReplacement);
  }
  else if (typeof lastChild === 'string') {
    this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
  }
  else {
    this.children.push(''.replace(aPattern, aReplacement));
  }
  return this;
};

/**
 * Set the source content for a source file. This will be added to the SourceMapGenerator
 * in the sourcesContent field.
 *
 * @param aSourceFile The filename of the source file
 * @param aSourceContent The content of the source file
 */
SourceNode.prototype.setSourceContent =
  function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
    this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
  };

/**
 * Walk over the tree of SourceNodes. The walking function is called for each
 * source file content and is passed the filename and source content.
 *
 * @param aFn The traversal function.
 */
SourceNode.prototype.walkSourceContents =
  function SourceNode_walkSourceContents(aFn) {
    for (var i = 0, len = this.children.length; i < len; i++) {
      if (this.children[i][isSourceNode]) {
        this.children[i].walkSourceContents(aFn);
      }
    }

    var sources = Object.keys(this.sourceContents);
    for (var i = 0, len = sources.length; i < len; i++) {
      aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
    }
  };

/**
 * Return the string representation of this source node. Walks over the tree
 * and concatenates all the various snippets together to one string.
 */
SourceNode.prototype.toString = function SourceNode_toString() {
  var str = "";
  this.walk(function (chunk) {
    str += chunk;
  });
  return str;
};

/**
 * Returns the string representation of this source node along with a source
 * map.
 */
SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
  var generated = {
    code: "",
    line: 1,
    column: 0
  };
  var map = new SourceMapGenerator(aArgs);
  var sourceMappingActive = false;
  var lastOriginalSource = null;
  var lastOriginalLine = null;
  var lastOriginalColumn = null;
  var lastOriginalName = null;
  this.walk(function (chunk, original) {
    generated.code += chunk;
    if (original.source !== null
        && original.line !== null
        && original.column !== null) {
      if(lastOriginalSource !== original.source
         || lastOriginalLine !== original.line
         || lastOriginalColumn !== original.column
         || lastOriginalName !== original.name) {
        map.addMapping({
          source: original.source,
          original: {
            line: original.line,
            column: original.column
          },
          generated: {
            line: generated.line,
            column: generated.column
          },
          name: original.name
        });
      }
      lastOriginalSource = original.source;
      lastOriginalLine = original.line;
      lastOriginalColumn = original.column;
      lastOriginalName = original.name;
      sourceMappingActive = true;
    } else if (sourceMappingActive) {
      map.addMapping({
        generated: {
          line: generated.line,
          column: generated.column
        }
      });
      lastOriginalSource = null;
      sourceMappingActive = false;
    }
    for (var idx = 0, length = chunk.length; idx < length; idx++) {
      if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
        generated.line++;
        generated.column = 0;
        // Mappings end at eol
        if (idx + 1 === length) {
          lastOriginalSource = null;
          sourceMappingActive = false;
        } else if (sourceMappingActive) {
          map.addMapping({
            source: original.source,
            original: {
              line: original.line,
              column: original.column
            },
            generated: {
              line: generated.line,
              column: generated.column
            },
            name: original.name
          });
        }
      } else {
        generated.column++;
      }
    }
  });
  this.walkSourceContents(function (sourceFile, sourceContent) {
    map.setSourceContent(sourceFile, sourceContent);
  });

  return { code: generated.code, map: map };
};

/*
 * Copyright 2009-2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE.txt or:
 * http://opensource.org/licenses/BSD-3-Clause
 */
var SourceMapConsumer = sourceMapConsumer.SourceMapConsumer;

let offset;
try {
    new Function('throw new Error(1)')();
}
catch (e) {
    // in Node 12, stack traces account for the function wrapper.
    // in Node 13 and later, the function wrapper adds two lines,
    // which must be subtracted to generate a valid mapping
    const match = /:(\d+):\d+\)$/.exec(e.stack.split('\n')[1]);
    offset = match ? +match[1] - 1 : 0;
}
function ssrRewriteStacktrace(stack, moduleGraph) {
    return stack
        .split('\n')
        .map((line) => {
        return line.replace(/^ {4}at (?:(.+?)\s+\()?(?:(.+?):(\d+)(?::(\d+))?)\)?/, (input, varName, url, line, column) => {
            var _a;
            if (!url)
                return input;
            const mod = moduleGraph.urlToModuleMap.get(url);
            const rawSourceMap = (_a = mod === null || mod === void 0 ? void 0 : mod.ssrTransformResult) === null || _a === void 0 ? void 0 : _a.map;
            if (!rawSourceMap) {
                return input;
            }
            const consumer = new SourceMapConsumer(rawSourceMap);
            const pos = consumer.originalPositionFor({
                line: Number(line) - offset,
                column: Number(column),
                bias: SourceMapConsumer.LEAST_UPPER_BOUND
            });
            if (!pos.source) {
                return input;
            }
            const source = `${pos.source}:${pos.line || 0}:${pos.column || 0}`;
            if (!varName || varName === 'eval') {
                return `    at ${source}`;
            }
            else {
                return `    at ${varName} (${source})`;
            }
        });
    })
        .join('\n');
}
function rebindErrorStacktrace(e, stacktrace) {
    const { configurable, writable } = Object.getOwnPropertyDescriptor(e, 'stack');
    if (configurable) {
        Object.defineProperty(e, 'stack', {
            value: stacktrace,
            enumerable: true,
            configurable: true,
            writable: true
        });
    }
    else if (writable) {
        e.stack = stacktrace;
    }
}

const pendingModules = new Map();
const pendingImports = new Map();
async function ssrLoadModule(url, server, context = { global }, urlStack = []) {
    url = unwrapId$1(url);
    // when we instantiate multiple dependency modules in parallel, they may
    // point to shared modules. We need to avoid duplicate instantiation attempts
    // by register every module as pending synchronously so that all subsequent
    // request to that module are simply waiting on the same promise.
    const pending = pendingModules.get(url);
    if (pending) {
        return pending;
    }
    const modulePromise = instantiateModule(url, server, context, urlStack);
    pendingModules.set(url, modulePromise);
    modulePromise
        .catch(() => {
        pendingImports.delete(url);
    })
        .finally(() => {
        pendingModules.delete(url);
    });
    return modulePromise;
}
async function instantiateModule(url, server, context = { global }, urlStack = []) {
    const { moduleGraph } = server;
    const mod = await moduleGraph.ensureEntryFromUrl(url);
    if (mod.ssrModule) {
        return mod.ssrModule;
    }
    const result = mod.ssrTransformResult ||
        (await transformRequest(url, server, { ssr: true }));
    if (!result) {
        // TODO more info? is this even necessary?
        throw new Error(`failed to load module for ssr: ${url}`);
    }
    const ssrModule = {
        [Symbol.toStringTag]: 'Module'
    };
    Object.defineProperty(ssrModule, '__esModule', { value: true });
    // Tolerate circular imports by ensuring the module can be
    // referenced before it's been instantiated.
    mod.ssrModule = ssrModule;
    const ssrImportMeta = {
        // The filesystem URL, matching native Node.js modules
        url: require$$0$8.pathToFileURL(mod.file).toString(),
    };
    urlStack = urlStack.concat(url);
    const isCircular = (url) => urlStack.includes(url);
    // Since dynamic imports can happen in parallel, we need to
    // account for multiple pending deps and duplicate imports.
    const pendingDeps = [];
    const ssrImport = async (dep) => {
        var _a, _b;
        if (dep[0] !== '.' && dep[0] !== '/') {
            return nodeRequire(dep, mod.file, server.config.root, !!server.config.resolve.preserveSymlinks);
        }
        dep = unwrapId$1(dep);
        if (!isCircular(dep) && !((_a = pendingImports.get(dep)) === null || _a === void 0 ? void 0 : _a.some(isCircular))) {
            pendingDeps.push(dep);
            if (pendingDeps.length === 1) {
                pendingImports.set(url, pendingDeps);
            }
            await ssrLoadModule(dep, server, context, urlStack);
            if (pendingDeps.length === 1) {
                pendingImports.delete(url);
            }
            else {
                pendingDeps.splice(pendingDeps.indexOf(dep), 1);
            }
        }
        return (_b = moduleGraph.urlToModuleMap.get(dep)) === null || _b === void 0 ? void 0 : _b.ssrModule;
    };
    const ssrDynamicImport = (dep) => {
        // #3087 dynamic import vars is ignored at rewrite import path,
        // so here need process relative path
        if (dep[0] === '.') {
            dep = path__default.posix.resolve(path__default.dirname(url), dep);
        }
        return ssrImport(dep);
    };
    function ssrExportAll(sourceModule) {
        for (const key in sourceModule) {
            if (key !== 'default') {
                Object.defineProperty(ssrModule, key, {
                    enumerable: true,
                    configurable: true,
                    get() {
                        return sourceModule[key];
                    }
                });
            }
        }
    }
    try {
        // eslint-disable-next-line @typescript-eslint/no-empty-function
        const AsyncFunction = async function () { }.constructor;
        const initModule = new AsyncFunction(`global`, ssrModuleExportsKey, ssrImportMetaKey, ssrImportKey, ssrDynamicImportKey, ssrExportAllKey, result.code + `\n//# sourceURL=${mod.url}`);
        await initModule(context.global, ssrModule, ssrImportMeta, ssrImport, ssrDynamicImport, ssrExportAll);
    }
    catch (e) {
        const stacktrace = ssrRewriteStacktrace(e.stack, moduleGraph);
        rebindErrorStacktrace(e, stacktrace);
        server.config.logger.error(`Error when evaluating SSR module ${url}:\n${stacktrace}`, {
            timestamp: true,
            clear: server.config.clearScreen,
            error: e
        });
        throw e;
    }
    return Object.freeze(ssrModule);
}
function nodeRequire(id, importer, root, preserveSymlinks) {
    const mod = require(resolve(id, importer, root, preserveSymlinks));
    const defaultExport = mod.__esModule ? mod.default : mod;
    // rollup-style default import interop for cjs
    return new Proxy(mod, {
        get(mod, prop) {
            if (prop === 'default')
                return defaultExport;
            return mod[prop];
        }
    });
}
const resolveCache = new Map();
function resolve(id, importer, root, preserveSymlinks) {
    const key = id + importer + root;
    const cached = resolveCache.get(key);
    if (cached) {
        return cached;
    }
    const resolveDir = importer && fs__default.existsSync(cleanUrl(importer))
        ? path__default.dirname(importer)
        : root;
    const resolved = resolveFrom$3(id, resolveDir, preserveSymlinks, true);
    resolveCache.set(key, resolved);
    return resolved;
}

/**
 * The amount to wait for requests to register newly found dependencies before triggering
 * a re-bundle + page reload
 */
const debounceMs = 100;
function createMissingImporterRegisterFn(server) {
    const { logger } = server.config;
    let knownOptimized = server._optimizeDepsMetadata.optimized;
    let currentMissing = {};
    let handle;
    let pendingResolve = null;
    async function rerun(ssr) {
        const newDeps = currentMissing;
        currentMissing = {};
        logger.info(source.yellow(`new dependencies found: ${Object.keys(newDeps).join(', ')}, updating...`), {
            timestamp: true
        });
        for (const id in knownOptimized) {
            newDeps[id] = knownOptimized[id].src;
        }
        try {
            // Nullify previous metadata so that the resolver won't
            // resolve to optimized files during the optimizer re-run
            server._isRunningOptimizer = true;
            server._optimizeDepsMetadata = null;
            const newData = (server._optimizeDepsMetadata = await optimizeDeps(server.config, true, false, newDeps, ssr));
            knownOptimized = newData.optimized;
            // update ssr externals
            server._ssrExternals = resolveSSRExternal(server.config, Object.keys(knownOptimized));
            logger.info(source.greenBright(`✨ dependencies updated, reloading page...`), { timestamp: true });
        }
        catch (e) {
            logger.error(source.red(`error while updating dependencies:\n${e.stack}`), { timestamp: true, error: e });
        }
        finally {
            server._isRunningOptimizer = false;
            pendingResolve && pendingResolve();
            server._pendingReload = pendingResolve = null;
        }
        // Cached transform results have stale imports (resolved to
        // old locations) so they need to be invalidated before the page is
        // reloaded.
        server.moduleGraph.invalidateAll();
        server.ws.send({
            type: 'full-reload',
            path: '*'
        });
    }
    return function registerMissingImport(id, resolved, ssr) {
        if (!knownOptimized[id]) {
            currentMissing[id] = resolved;
            if (handle)
                clearTimeout(handle);
            handle = setTimeout(() => rerun(ssr), debounceMs);
            server._pendingReload = new Promise((r) => {
                pendingResolve = r;
            });
        }
    };
}

// https://github.com/vitejs/vite/issues/2820#issuecomment-812495079
const ROOT_FILES = [
    // '.git',
    // https://pnpm.js.org/workspaces/
    'pnpm-workspace.yaml'
    // https://rushjs.io/pages/advanced/config_files/
    // 'rush.json',
    // https://nx.dev/latest/react/getting-started/nx-setup
    // 'workspace.json',
    // 'nx.json'
];
// npm: https://docs.npmjs.com/cli/v7/using-npm/workspaces#installing-workspaces
// yarn: https://classic.yarnpkg.com/en/docs/workspaces/#toc-how-to-use-it
function hasWorkspacePackageJSON(root) {
    const path = path$t.join(root, 'package.json');
    if (!isFileReadable(path)) {
        return false;
    }
    const content = JSON.parse(fs__default.readFileSync(path, 'utf-8')) || {};
    return !!content.workspaces;
}
function hasRootFile(root) {
    return ROOT_FILES.some((file) => fs__default.existsSync(path$t.join(root, file)));
}
function hasPackageJSON(root) {
    const path = path$t.join(root, 'package.json');
    return fs__default.existsSync(path);
}
/**
 * Search up for the nearest `package.json`
 */
function searchForPackageRoot(current, root = current) {
    if (hasPackageJSON(current))
        return current;
    const dir = path$t.dirname(current);
    // reach the fs root
    if (!dir || dir === current)
        return root;
    return searchForPackageRoot(dir, root);
}
/**
 * Search up for the nearest workspace root
 */
function searchForWorkspaceRoot(current, root = searchForPackageRoot(current)) {
    if (hasRootFile(current))
        return current;
    if (hasWorkspacePackageJSON(current))
        return current;
    const dir = path$t.dirname(current);
    // reach the fs root
    if (!dir || dir === current)
        return root;
    return searchForWorkspaceRoot(dir, root);
}

async function createServer(inlineConfig = {}) {
    const config = await resolveConfig(inlineConfig, 'serve', 'development');
    const root = config.root;
    const serverConfig = config.server;
    const httpsOptions = await resolveHttpsConfig(config);
    let { middlewareMode } = serverConfig;
    if (middlewareMode === true) {
        middlewareMode = 'ssr';
    }
    const middlewares = connect();
    const httpServer = middlewareMode
        ? null
        : await resolveHttpServer(serverConfig, middlewares, httpsOptions);
    const ws = createWebSocketServer(httpServer, config, httpsOptions);
    const { ignored = [], ...watchOptions } = serverConfig.watch || {};
    const watcher = chokidar.watch(path__default.resolve(root), {
        ignored: [
            '**/node_modules/**',
            '**/.git/**',
            ...(Array.isArray(ignored) ? ignored : [ignored])
        ],
        ignoreInitial: true,
        ignorePermissionErrors: true,
        disableGlobbing: true,
        ...watchOptions
    });
    const plugins = config.plugins;
    const container = await createPluginContainer(config, watcher);
    const moduleGraph = new ModuleGraph(container);
    const closeHttpServer = createServerCloseFn(httpServer);
    // eslint-disable-next-line prefer-const
    let exitProcess;
    const server = {
        config,
        middlewares,
        get app() {
            config.logger.warn(`ViteDevServer.app is deprecated. Use ViteDevServer.middlewares instead.`);
            return middlewares;
        },
        httpServer,
        watcher,
        pluginContainer: container,
        ws,
        moduleGraph,
        transformWithEsbuild,
        transformRequest(url, options) {
            return transformRequest(url, server, options);
        },
        transformIndexHtml: null,
        ssrLoadModule(url) {
            if (!server._ssrExternals) {
                server._ssrExternals = resolveSSRExternal(config, server._optimizeDepsMetadata
                    ? Object.keys(server._optimizeDepsMetadata.optimized)
                    : []);
            }
            return ssrLoadModule(url, server);
        },
        ssrFixStacktrace(e) {
            if (e.stack) {
                const stacktrace = ssrRewriteStacktrace(e.stack, moduleGraph);
                rebindErrorStacktrace(e, stacktrace);
            }
        },
        listen(port, isRestart) {
            return startServer(server, port, isRestart);
        },
        async close() {
            process.off('SIGTERM', exitProcess);
            if (!middlewareMode && process.env.CI !== 'true') {
                process.stdin.off('end', exitProcess);
            }
            await Promise.all([
                watcher.close(),
                ws.close(),
                container.close(),
                closeHttpServer()
            ]);
        },
        printUrls() {
            if (httpServer) {
                printHttpServerUrls(httpServer, config);
            }
            else {
                throw new Error('cannot print server URLs in middleware mode.');
            }
        },
        _optimizeDepsMetadata: null,
        _ssrExternals: null,
        _globImporters: Object.create(null),
        _isRunningOptimizer: false,
        _registerMissingImport: null,
        _pendingReload: null,
        _pendingRequests: Object.create(null)
    };
    server.transformIndexHtml = createDevHtmlTransformFn(server);
    exitProcess = async () => {
        try {
            await server.close();
        }
        finally {
            process.exit(0);
        }
    };
    process.once('SIGTERM', exitProcess);
    if (!middlewareMode && process.env.CI !== 'true') {
        process.stdin.on('end', exitProcess);
    }
    watcher.on('change', async (file) => {
        file = normalizePath$4(file);
        // invalidate module graph cache on file change
        moduleGraph.onFileChange(file);
        if (serverConfig.hmr !== false) {
            try {
                await handleHMRUpdate(file, server);
            }
            catch (err) {
                ws.send({
                    type: 'error',
                    err: prepareError(err)
                });
            }
        }
    });
    watcher.on('add', (file) => {
        handleFileAddUnlink(normalizePath$4(file), server);
    });
    watcher.on('unlink', (file) => {
        handleFileAddUnlink(normalizePath$4(file), server, true);
    });
    if (!middlewareMode && httpServer) {
        httpServer.once('listening', () => {
            // update actual port since this may be different from initial value
            serverConfig.port = httpServer.address().port;
        });
    }
    // apply server configuration hooks from plugins
    const postHooks = [];
    for (const plugin of plugins) {
        if (plugin.configureServer) {
            postHooks.push(await plugin.configureServer(server));
        }
    }
    // Internal middlewares ------------------------------------------------------
    // request timer
    if (process.env.DEBUG) {
        middlewares.use(timeMiddleware(root));
    }
    // cors (enabled by default)
    const { cors } = serverConfig;
    if (cors !== false) {
        middlewares.use(corsMiddleware(typeof cors === 'boolean' ? {} : cors));
    }
    // proxy
    const { proxy } = serverConfig;
    if (proxy) {
        middlewares.use(proxyMiddleware(httpServer, config));
    }
    // base
    if (config.base !== '/') {
        middlewares.use(baseMiddleware(server));
    }
    // open in editor support
    middlewares.use('/__open-in-editor', launchEditorMiddleware());
    // hmr reconnect ping
    // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
    middlewares.use('/__vite_ping', function viteHMRPingMiddleware(_, res) {
        res.end('pong');
    });
    // serve static files under /public
    // this applies before the transform middleware so that these files are served
    // as-is without transforms.
    if (config.publicDir) {
        middlewares.use(servePublicMiddleware(config.publicDir));
    }
    // main transform middleware
    middlewares.use(transformMiddleware(server));
    // serve static files
    middlewares.use(serveRawFsMiddleware(server));
    middlewares.use(serveStaticMiddleware(root, server));
    // spa fallback
    if (!middlewareMode || middlewareMode === 'html') {
        middlewares.use(spaFallbackMiddleware(root));
    }
    // run post config hooks
    // This is applied before the html middleware so that user middleware can
    // serve custom content instead of index.html.
    postHooks.forEach((fn) => fn && fn());
    if (!middlewareMode || middlewareMode === 'html') {
        // transform index.html
        middlewares.use(indexHtmlMiddleware(server));
        // handle 404s
        // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...`
        middlewares.use(function vite404Middleware(_, res) {
            res.statusCode = 404;
            res.end();
        });
    }
    // error handler
    middlewares.use(errorMiddleware(server, !!middlewareMode));
    const runOptimize = async () => {
        if (config.cacheDir) {
            server._isRunningOptimizer = true;
            try {
                server._optimizeDepsMetadata = await optimizeDeps(config);
            }
            finally {
                server._isRunningOptimizer = false;
            }
            server._registerMissingImport = createMissingImporterRegisterFn(server);
        }
    };
    if (!middlewareMode && httpServer) {
        let isOptimized = false;
        // overwrite listen to run optimizer before server start
        const listen = httpServer.listen.bind(httpServer);
        httpServer.listen = (async (port, ...args) => {
            if (!isOptimized) {
                try {
                    await container.buildStart({});
                    await runOptimize();
                    isOptimized = true;
                }
                catch (e) {
                    httpServer.emit('error', e);
                    return;
                }
            }
            return listen(port, ...args);
        });
    }
    else {
        await container.buildStart({});
        await runOptimize();
    }
    return server;
}
async function startServer(server, inlinePort, isRestart = false) {
    const httpServer = server.httpServer;
    if (!httpServer) {
        throw new Error('Cannot call server.listen in middleware mode.');
    }
    const options = server.config.server;
    const port = inlinePort || options.port || 3000;
    const hostname = resolveHostname(options.host);
    const protocol = options.https ? 'https' : 'http';
    const info = server.config.logger.info;
    const base = server.config.base;
    const serverPort = await httpServerStart(httpServer, {
        port,
        strictPort: options.strictPort,
        host: hostname.host,
        logger: server.config.logger
    });
    // @ts-ignore
    const profileSession = global.__vite_profile_session;
    if (profileSession) {
        profileSession.post('Profiler.stop', (err, { profile }) => {
            // Write profile to disk, upload, etc.
            if (!err) {
                const outPath = path__default.resolve('./vite-profile.cpuprofile');
                fs__default.writeFileSync(outPath, JSON.stringify(profile));
                info(source.yellow(`  CPU profile written to ${source.white.dim(outPath)}\n`));
            }
            else {
                throw err;
            }
        });
    }
    if (options.open && !isRestart) {
        const path = typeof options.open === 'string' ? options.open : base;
        openBrowser(path.startsWith('http')
            ? path
            : `${protocol}://${hostname.name}:${serverPort}${path}`, true, server.config.logger);
    }
    return server;
}
function createServerCloseFn(server) {
    if (!server) {
        return () => { };
    }
    let hasListened = false;
    const openSockets = new Set();
    server.on('connection', (socket) => {
        openSockets.add(socket);
        socket.on('close', () => {
            openSockets.delete(socket);
        });
    });
    server.once('listening', () => {
        hasListened = true;
    });
    return () => new Promise((resolve, reject) => {
        openSockets.forEach((s) => s.destroy());
        if (hasListened) {
            server.close((err) => {
                if (err) {
                    reject(err);
                }
                else {
                    resolve();
                }
            });
        }
        else {
            resolve();
        }
    });
}
function resolvedAllowDir(root, dir) {
    return ensureLeadingSlash(normalizePath$4(path__default.resolve(root, dir)));
}
function resolveServerOptions(root, raw) {
    var _a, _b;
    const server = raw || {};
    let allowDirs = (_a = server.fs) === null || _a === void 0 ? void 0 : _a.allow;
    if (!allowDirs) {
        allowDirs = [searchForWorkspaceRoot(root)];
    }
    allowDirs = allowDirs.map((i) => resolvedAllowDir(root, i));
    // only push client dir when vite itself is outside-of-root
    const resolvedClientDir = resolvedAllowDir(root, CLIENT_DIR);
    if (!allowDirs.some((i) => resolvedClientDir.startsWith(i))) {
        allowDirs.push(resolvedClientDir);
    }
    server.fs = {
        // TODO: make strict by default
        strict: (_b = server.fs) === null || _b === void 0 ? void 0 : _b.strict,
        allow: allowDirs
    };
    return server;
}

var index = {
	__proto__: null,
	createServer: createServer,
	resolveServerOptions: resolveServerOptions,
	searchForWorkspaceRoot: searchForWorkspaceRoot
};

const noop = () => null;
function matches(pattern, importee) {
    if (pattern instanceof RegExp) {
        return pattern.test(importee);
    }
    if (importee.length < pattern.length) {
        return false;
    }
    if (importee === pattern) {
        return true;
    }
    const importeeStartsWithKey = importee.indexOf(pattern) === 0;
    const importeeHasSlashAfterKey = importee.substring(pattern.length)[0] === '/';
    return importeeStartsWithKey && importeeHasSlashAfterKey;
}
function normalizeId(id) {
    return id;
}
function getEntries({ entries }) {
    if (!entries) {
        return [];
    }
    if (Array.isArray(entries)) {
        return entries;
    }
    return Object.entries(entries).map(([key, value]) => {
        return { find: key, replacement: value };
    });
}
function getCustomResolver({ customResolver }, options) {
    if (typeof customResolver === 'function') {
        return customResolver;
    }
    if (customResolver && typeof customResolver.resolveId === 'function') {
        return customResolver.resolveId;
    }
    if (typeof options.customResolver === 'function') {
        return options.customResolver;
    }
    if (options.customResolver && typeof options.customResolver.resolveId === 'function') {
        return options.customResolver.resolveId;
    }
    return null;
}
function alias(options = {}) {
    const entries = getEntries(options);
    if (entries.length === 0) {
        return {
            name: 'alias',
            resolveId: noop
        };
    }
    return {
        name: 'alias',
        buildStart(inputOptions) {
            return Promise.all([...entries, options].map(({ customResolver }) => customResolver &&
                typeof customResolver === 'object' &&
                typeof customResolver.buildStart === 'function' &&
                customResolver.buildStart.call(this, inputOptions))).then(() => {
                // enforce void return value
            });
        },
        resolveId(importee, importer) {
            const importeeId = normalizeId(importee);
            const importerId = normalizeId(importer);
            // First match is supposed to be the correct one
            const matchedEntry = entries.find((entry) => matches(entry.find, importeeId));
            if (!matchedEntry || !importerId) {
                return null;
            }
            const updatedId = normalizeId(importeeId.replace(matchedEntry.find, matchedEntry.replacement));
            const customResolver = getCustomResolver(matchedEntry, options);
            if (customResolver) {
                return customResolver.call(this, updatedId, importerId, {});
            }
            return this.resolve(updatedId, importer, { skipSelf: true }).then((resolved) => {
                let finalResult = resolved;
                if (!finalResult) {
                    finalResult = { id: updatedId };
                }
                return finalResult;
            });
        }
    };
}

/**
 * https://github.com/rollup/plugins/blob/master/packages/json/src/index.js
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file at
 * https://github.com/rollup/plugins/blob/master/LICENSE
 */
// Custom json filter for vite
const jsonExtRE = /\.json($|\?)(?!commonjs-(proxy|external))/;
function jsonPlugin(options = {}, isBuild) {
    return {
        name: 'vite:json',
        transform(json, id) {
            if (!jsonExtRE.test(id))
                return null;
            if (SPECIAL_QUERY_RE.test(id))
                return null;
            try {
                if (options.stringify) {
                    if (isBuild) {
                        return {
                            // during build, parse then double-stringify to remove all
                            // unnecessary whitespaces to reduce bundle size.
                            code: `export default JSON.parse(${JSON.stringify(JSON.stringify(JSON.parse(json)))})`,
                            map: { mappings: '' }
                        };
                    }
                    else {
                        return `export default JSON.parse(${JSON.stringify(json)})`;
                    }
                }
                const parsed = JSON.parse(json);
                return {
                    code: dataToEsm(parsed, {
                        preferConst: true,
                        namedExports: options.namedExports
                    }),
                    map: { mappings: '' }
                };
            }
            catch (e) {
                const errorMessageList = /[\d]+/.exec(e.message);
                const position = errorMessageList && parseInt(errorMessageList[0], 10);
                const msg = position
                    ? `, invalid JSON syntax found at line ${position}`
                    : `.`;
                this.error(`Failed to parse JSON file` + msg, e.idx);
            }
        }
    };
}

const isDebug = !!process.env.DEBUG;
const debug$2 = createDebugger('vite:import-analysis');
const clientDir = normalizePath$4(CLIENT_DIR);
const skipRE = /\.(map|json)$/;
const canSkip = (id) => skipRE.test(id) || isDirectCSSRequest(id);
function isExplicitImportRequired(url) {
    return !isJSRequest(cleanUrl(url)) && !isCSSRequest(url);
}
function markExplicitImport(url) {
    if (isExplicitImportRequired(url)) {
        return injectQuery(url, 'import');
    }
    return url;
}
/**
 * Server-only plugin that lexes, resolves, rewrites and analyzes url imports.
 *
 * - Imports are resolved to ensure they exist on disk
 *
 * - Lexes HMR accept calls and updates import relationships in the module graph
 *
 * - Bare module imports are resolved (by @rollup-plugin/node-resolve) to
 * absolute file paths, e.g.
 *
 *     ```js
 *     import 'foo'
 *     ```
 *     is rewritten to
 *     ```js
 *     import '/@fs//project/node_modules/foo/dist/foo.js'
 *     ```
 *
 * - CSS imports are appended with `.js` since both the js module and the actual
 * css (referenced via <link>) may go through the transform pipeline:
 *
 *     ```js
 *     import './style.css'
 *     ```
 *     is rewritten to
 *     ```js
 *     import './style.css.js'
 *     ```
 */
function importAnalysisPlugin(config) {
    const { root, base } = config;
    const clientPublicPath = path__default.posix.join(base, CLIENT_PUBLIC_PATH);
    let server;
    return {
        name: 'vite:import-analysis',
        configureServer(_server) {
            server = _server;
        },
        async transform(source$1, importer, ssr) {
            const prettyImporter = prettifyUrl(importer, root);
            if (canSkip(importer)) {
                isDebug && debug$2(source.dim(`[skipped] ${prettyImporter}`));
                return null;
            }
            const start = perf_hooks.performance.now();
            await init;
            let imports = [];
            // strip UTF-8 BOM
            if (source$1.charCodeAt(0) === 0xfeff) {
                source$1 = source$1.slice(1);
            }
            try {
                imports = parse$f(source$1)[0];
            }
            catch (e) {
                const isVue = importer.endsWith('.vue');
                const maybeJSX = !isVue && isJSRequest(importer);
                const msg = isVue
                    ? `Install @vitejs/plugin-vue to handle .vue files.`
                    : maybeJSX
                        ? `If you are using JSX, make sure to name the file with the .jsx or .tsx extension.`
                        : `You may need to install appropriate plugins to handle the ${path__default.extname(importer)} file format.`;
                this.error(`Failed to parse source for import analysis because the content ` +
                    `contains invalid JS syntax. ` +
                    msg, e.idx);
            }
            if (!imports.length) {
                isDebug &&
                    debug$2(`${timeFrom(start)} ${source.dim(`[no imports] ${prettyImporter}`)}`);
                return source$1;
            }
            let hasHMR = false;
            let isSelfAccepting = false;
            let hasEnv = false;
            let needQueryInjectHelper = false;
            let s;
            const str = () => s || (s = new MagicString(source$1));
            // vite-only server context
            const { moduleGraph } = server;
            // since we are already in the transform phase of the importer, it must
            // have been loaded so its entry is guaranteed in the module graph.
            const importerModule = moduleGraph.getModuleById(importer);
            const importedUrls = new Set();
            const staticImportedUrls = new Set();
            const acceptedUrls = new Set();
            const toAbsoluteUrl = (url) => path__default.posix.resolve(path__default.posix.dirname(importerModule.url), url);
            const normalizeUrl = async (url, pos) => {
                if (base !== '/' && url.startsWith(base)) {
                    url = url.replace(base, '/');
                }
                const resolved = await this.resolve(url, importer);
                if (!resolved) {
                    this.error(`Failed to resolve import "${url}" from "${path__default.relative(process.cwd(), importer)}". Does the file exist?`, pos);
                }
                const isRelative = url.startsWith('.');
                const isSelfImport = !isRelative && cleanUrl(url) === cleanUrl(importer);
                // normalize all imports into resolved URLs
                // e.g. `import 'foo'` -> `import '/@fs/.../node_modules/foo/index.js`
                if (resolved.id.startsWith(root + '/')) {
                    // in root: infer short absolute path from root
                    url = resolved.id.slice(root.length);
                }
                else if (fs__default.existsSync(cleanUrl(resolved.id))) {
                    // exists but out of root: rewrite to absolute /@fs/ paths
                    url = path__default.posix.join(FS_PREFIX + resolved.id);
                }
                else {
                    url = resolved.id;
                }
                if (isExternalUrl(url)) {
                    return [url, url];
                }
                // if the resolved id is not a valid browser import specifier,
                // prefix it to make it valid. We will strip this before feeding it
                // back into the transform pipeline
                if (!url.startsWith('.') && !url.startsWith('/')) {
                    url =
                        VALID_ID_PREFIX + resolved.id.replace('\0', NULL_BYTE_PLACEHOLDER);
                }
                // make the URL browser-valid if not SSR
                if (!ssr) {
                    // mark non-js/css imports with `?import`
                    url = markExplicitImport(url);
                    // for relative js/css imports, or self-module virtual imports
                    // (e.g. vue blocks), inherit importer's version query
                    // do not do this for unknown type imports, otherwise the appended
                    // query can break 3rd party plugin's extension checks.
                    if ((isRelative || isSelfImport) && !/[\?&]import=?\b/.test(url)) {
                        const versionMatch = importer.match(DEP_VERSION_RE);
                        if (versionMatch) {
                            url = injectQuery(url, versionMatch[1]);
                        }
                    }
                    // check if the dep has been hmr updated. If yes, we need to attach
                    // its last updated timestamp to force the browser to fetch the most
                    // up-to-date version of this module.
                    try {
                        const depModule = await moduleGraph.ensureEntryFromUrl(url);
                        if (depModule.lastHMRTimestamp > 0) {
                            url = injectQuery(url, `t=${depModule.lastHMRTimestamp}`);
                        }
                    }
                    catch (e) {
                        // it's possible that the dep fails to resolve (non-existent import)
                        // attach location to the missing import
                        e.pos = pos;
                        throw e;
                    }
                    // prepend base (dev base is guaranteed to have ending slash)
                    url = base + url.replace(/^\//, '');
                }
                return [url, resolved.id];
            };
            for (let index = 0; index < imports.length; index++) {
                const { s: start, e: end, ss: expStart, se: expEnd, d: dynamicIndex, 
                // #2083 User may use escape path,
                // so use imports[index].n to get the unescaped string
                // @ts-ignore
                n: specifier } = imports[index];
                const rawUrl = source$1.slice(start, end);
                // check import.meta usage
                if (rawUrl === 'import.meta') {
                    const prop = source$1.slice(end, end + 4);
                    if (prop === '.hot') {
                        hasHMR = true;
                        if (source$1.slice(end + 4, end + 11) === '.accept') {
                            // further analyze accepted modules
                            if (lexAcceptedHmrDeps(source$1, source$1.indexOf('(', end + 11) + 1, acceptedUrls)) {
                                isSelfAccepting = true;
                            }
                        }
                    }
                    else if (prop === '.env') {
                        hasEnv = true;
                    }
                    else if (prop === '.glo' && source$1[end + 4] === 'b') {
                        // transform import.meta.glob()
                        // e.g. `import.meta.glob('glob:./dir/*.js')`
                        const { imports, importsString, exp, endIndex, base, pattern, isEager } = await transformImportGlob(source$1, start, importer, index, root, normalizeUrl);
                        str().prepend(importsString);
                        str().overwrite(expStart, endIndex, exp);
                        imports.forEach((url) => {
                            url = url.replace(base, '/');
                            importedUrls.add(url);
                            if (isEager)
                                staticImportedUrls.add(url);
                        });
                        if (!(importerModule.file in server._globImporters)) {
                            server._globImporters[importerModule.file] = {
                                module: importerModule,
                                importGlobs: []
                            };
                        }
                        server._globImporters[importerModule.file].importGlobs.push({
                            base,
                            pattern
                        });
                    }
                    continue;
                }
                const isDynamicImport = dynamicIndex >= 0;
                // static import or valid string in dynamic import
                // If resolvable, let's resolve it
                if (specifier) {
                    // skip external / data uri
                    if (isExternalUrl(specifier) || isDataUrl(specifier)) {
                        continue;
                    }
                    // skip ssr external
                    if (ssr) {
                        if (server._ssrExternals &&
                            shouldExternalizeForSSR(specifier, server._ssrExternals)) {
                            continue;
                        }
                        if (isBuiltin(specifier)) {
                            continue;
                        }
                    }
                    // skip client
                    if (specifier === clientPublicPath) {
                        continue;
                    }
                    // warn imports to non-asset /public files
                    if (specifier.startsWith('/') &&
                        !config.assetsInclude(cleanUrl(specifier)) &&
                        !specifier.endsWith('.json') &&
                        checkPublicFile(specifier, config)) {
                        throw new Error(`Cannot import non-asset file ${specifier} which is inside /public.` +
                            `JS/CSS files inside /public are copied as-is on build and ` +
                            `can only be referenced via <script src> or <link href> in html.`);
                    }
                    // normalize
                    const [normalizedUrl, resolvedId] = await normalizeUrl(specifier, start);
                    let url = normalizedUrl;
                    // record as safe modules
                    server === null || server === void 0 ? void 0 : server.moduleGraph.safeModulesPath.add(cleanUrl(url).slice(4 /* '/@fs'.length */));
                    // rewrite
                    if (url !== specifier) {
                        // for optimized cjs deps, support named imports by rewriting named
                        // imports to const assignments.
                        if (resolvedId.endsWith(`&es-interop`)) {
                            url = url.slice(0, -11);
                            if (isDynamicImport) {
                                // rewrite `import('package')` to expose the default directly
                                str().overwrite(dynamicIndex, end + 1, `import('${url}').then(m => m.default && m.default.__esModule ? m.default : ({ ...m.default, default: m.default }))`);
                            }
                            else {
                                const exp = source$1.slice(expStart, expEnd);
                                const rewritten = transformCjsImport(exp, url, rawUrl, index);
                                if (rewritten) {
                                    str().overwrite(expStart, expEnd, rewritten);
                                }
                                else {
                                    // #1439 export * from '...'
                                    str().overwrite(start, end, url);
                                }
                            }
                        }
                        else {
                            str().overwrite(start, end, isDynamicImport ? `'${url}'` : url);
                        }
                    }
                    // record for HMR import chain analysis
                    // make sure to normalize away base
                    const urlWithoutBase = url.replace(base, '/');
                    importedUrls.add(urlWithoutBase);
                    if (!isDynamicImport) {
                        // for pre-transforming
                        staticImportedUrls.add(urlWithoutBase);
                    }
                }
                else if (!importer.startsWith(clientDir) && !ssr) {
                    // check @vite-ignore which suppresses dynamic import warning
                    const hasViteIgnore = /\/\*\s*@vite-ignore\s*\*\//.test(rawUrl);
                    const url = rawUrl
                        .replace(/\/\*[\s\S]*?\*\/|([^\\:]|^)\/\/.*$/gm, '')
                        .trim();
                    if (!hasViteIgnore && !isSupportedDynamicImport(url)) {
                        this.warn(`\n` +
                            source.cyan(importerModule.file) +
                            `\n` +
                            generateCodeFrame(source$1, start) +
                            `\nThe above dynamic import cannot be analyzed by vite.\n` +
                            `See ${source.blue(`https://github.com/rollup/plugins/tree/master/packages/dynamic-import-vars#limitations`)} ` +
                            `for supported dynamic import formats. ` +
                            `If this is intended to be left as-is, you can use the ` +
                            `/* @vite-ignore */ comment inside the import() call to suppress this warning.\n`);
                    }
                    if (!/^('.*'|".*"|`.*`)$/.test(url) ||
                        isExplicitImportRequired(url.slice(1, -1))) {
                        needQueryInjectHelper = true;
                        str().overwrite(start, end, `__vite__injectQuery(${url}, 'import')`);
                    }
                }
            }
            if (hasEnv) {
                // inject import.meta.env
                let env = `import.meta.env = ${JSON.stringify({
                    ...config.env,
                    SSR: !!ssr
                })};`;
                // account for user env defines
                for (const key in config.define) {
                    if (key.startsWith(`import.meta.env.`)) {
                        const val = config.define[key];
                        env += `${key} = ${typeof val === 'string' ? val : JSON.stringify(val)};`;
                    }
                }
                str().prepend(env);
            }
            if (hasHMR && !ssr) {
                debugHmr(`${isSelfAccepting
                    ? `[self-accepts]`
                    : acceptedUrls.size
                        ? `[accepts-deps]`
                        : `[detected api usage]`} ${prettyImporter}`);
                // inject hot context
                str().prepend(`import { createHotContext as __vite__createHotContext } from "${clientPublicPath}";` +
                    `import.meta.hot = __vite__createHotContext(${JSON.stringify(importerModule.url)});`);
            }
            if (needQueryInjectHelper) {
                str().prepend(`import { injectQuery as __vite__injectQuery } from "${clientPublicPath}";`);
            }
            // normalize and rewrite accepted urls
            const normalizedAcceptedUrls = new Set();
            for (const { url, start, end } of acceptedUrls) {
                const [normalized] = await moduleGraph.resolveUrl(toAbsoluteUrl(markExplicitImport(url)));
                normalizedAcceptedUrls.add(normalized);
                str().overwrite(start, end, JSON.stringify(normalized));
            }
            // update the module graph for HMR analysis.
            // node CSS imports does its own graph update in the css plugin so we
            // only handle js graph updates here.
            if (!isCSSRequest(importer)) {
                // attached by pluginContainer.addWatchFile
                const pluginImports = this._addedImports;
                if (pluginImports) {
                    (await Promise.all([...pluginImports].map((id) => normalizeUrl(id, 0)))).forEach(([url]) => importedUrls.add(url));
                }
                const prunedImports = await moduleGraph.updateModuleInfo(importerModule, importedUrls, normalizedAcceptedUrls, isSelfAccepting);
                if (hasHMR && prunedImports) {
                    handlePrunedModules(prunedImports, server);
                }
            }
            isDebug &&
                debug$2(`${timeFrom(start)} ${source.dim(`[${importedUrls.size} imports rewritten] ${prettyImporter}`)}`);
            // pre-transform known direct imports
            if (staticImportedUrls.size) {
                staticImportedUrls.forEach((url) => {
                    transformRequest(unwrapId$1(removeImportQuery(url)), server, { ssr });
                });
            }
            if (s) {
                return s.toString();
            }
            else {
                return source$1;
            }
        }
    };
}
/**
 * https://github.com/rollup/plugins/tree/master/packages/dynamic-import-vars#limitations
 * This is probably less accurate but is much cheaper than a full AST parse.
 */
function isSupportedDynamicImport(url) {
    url = url.trim().slice(1, -1);
    // must be relative
    if (!url.startsWith('./') && !url.startsWith('../')) {
        return false;
    }
    // must have extension
    if (!path__default.extname(url)) {
        return false;
    }
    // must be more specific if importing from same dir
    if (url.startsWith('./${') && url.indexOf('/') === url.lastIndexOf('/')) {
        return false;
    }
    return true;
}
/**
 * Detect import statements to a known optimized CJS dependency and provide
 * ES named imports interop. We do this by rewriting named imports to a variable
 * assignment to the corresponding property on the `module.exports` of the cjs
 * module. Note this doesn't support dynamic re-assignments from within the cjs
 * module.
 *
 * Note that es-module-lexer treats `export * from '...'` as an import as well,
 * so, we may encounter ExportAllDeclaration here, in which case `undefined`
 * will be returned.
 *
 * Credits \@csr632 via #837
 */
function transformCjsImport(importExp, url, rawUrl, importIndex) {
    const node = parse$c(importExp, {
        ecmaVersion: 'latest',
        sourceType: 'module'
    }).body[0];
    if (node.type === 'ImportDeclaration') {
        if (!node.specifiers.length) {
            return `import "${url}"`;
        }
        const importNames = [];
        for (const spec of node.specifiers) {
            if (spec.type === 'ImportSpecifier' &&
                spec.imported.type === 'Identifier') {
                const importedName = spec.imported.name;
                const localName = spec.local.name;
                importNames.push({ importedName, localName });
            }
            else if (spec.type === 'ImportDefaultSpecifier') {
                importNames.push({
                    importedName: 'default',
                    localName: spec.local.name
                });
            }
            else if (spec.type === 'ImportNamespaceSpecifier') {
                importNames.push({ importedName: '*', localName: spec.local.name });
            }
        }
        // If there is multiple import for same id in one file,
        // importIndex will prevent the cjsModuleName to be duplicate
        const cjsModuleName = makeLegalIdentifier$1(`__vite__cjsImport${importIndex}_${rawUrl}`);
        const lines = [`import ${cjsModuleName} from "${url}"`];
        importNames.forEach(({ importedName, localName }) => {
            if (importedName === '*') {
                lines.push(`const ${localName} = ${cjsModuleName}`);
            }
            else if (importedName === 'default') {
                lines.push(`const ${localName} = ${cjsModuleName}.__esModule ? ${cjsModuleName}.default : ${cjsModuleName}`);
            }
            else {
                lines.push(`const ${localName} = ${cjsModuleName}["${importedName}"]`);
            }
        });
        return lines.join('; ');
    }
}

// ids in transform are normalized to unix style
const normalizedClientEntry = normalizePath$4(CLIENT_ENTRY);
const normalizedEnvEntry = normalizePath$4(ENV_ENTRY);
/**
 * some values used by the client needs to be dynamically injected by the server
 * @server-only
 */
function clientInjectionsPlugin(config) {
    return {
        name: 'vite:client-inject',
        transform(code, id) {
            if (id === normalizedClientEntry || id === normalizedEnvEntry) {
                let options = config.server.hmr;
                options = options && typeof options !== 'boolean' ? options : {};
                const host = options.host || null;
                const protocol = options.protocol || null;
                const timeout = options.timeout || 30000;
                const overlay = options.overlay !== false;
                let port;
                if (isObject$3(config.server.hmr)) {
                    port = config.server.hmr.clientPort || config.server.hmr.port;
                }
                if (config.server.middlewareMode) {
                    port = String(port || 24678);
                }
                else {
                    port = String(port || options.port || config.server.port);
                }
                let hmrBase = config.base;
                if (options.path) {
                    hmrBase = path__default.posix.join(hmrBase, options.path);
                }
                if (hmrBase !== '/') {
                    port = path__default.posix.normalize(`${port}${hmrBase}`);
                }
                return code
                    .replace(`__MODE__`, JSON.stringify(config.mode))
                    .replace(`__BASE__`, JSON.stringify(config.base))
                    .replace(`__DEFINES__`, serializeDefine(config.define || {}))
                    .replace(`__HMR_PROTOCOL__`, JSON.stringify(protocol))
                    .replace(`__HMR_HOSTNAME__`, JSON.stringify(host))
                    .replace(`__HMR_PORT__`, JSON.stringify(port))
                    .replace(`__HMR_TIMEOUT__`, JSON.stringify(timeout))
                    .replace(`__HMR_ENABLE_OVERLAY__`, JSON.stringify(overlay));
            }
            else if (code.includes('process.env.NODE_ENV')) {
                // replace process.env.NODE_ENV
                return code.replace(/\bprocess\.env\.NODE_ENV\b/g, JSON.stringify(config.mode));
            }
        }
    };
}
function serializeDefine(define) {
    let res = `{`;
    for (const key in define) {
        const val = define[key];
        res += `${JSON.stringify(key)}: ${typeof val === 'string' ? `(${val})` : JSON.stringify(val)}, `;
    }
    return res + `}`;
}

const wasmHelperId = '/__vite-wasm-helper';
const wasmHelper = async (opts = {}, url) => {
    let result;
    if (url.startsWith('data:')) {
        // @ts-ignore
        const binaryString = atob(url.replace(/^data:.*?base64,/, ''));
        const bytes = new Uint8Array(binaryString.length);
        for (let i = 0; i < binaryString.length; i++) {
            bytes[i] = binaryString.charCodeAt(i);
        }
        // @ts-ignore
        result = await WebAssembly.instantiate(bytes, opts);
    }
    else {
        // https://github.com/mdn/webassembly-examples/issues/5
        // WebAssembly.instantiateStreaming requires the server to provide the
        // correct MIME type for .wasm files, which unfortunately doesn't work for
        // a lot of static file servers, so we just work around it by getting the
        // raw buffer.
        // @ts-ignore
        const response = await fetch(url);
        const contentType = response.headers.get('Content-Type') || '';
        if (
        // @ts-ignore
        'instantiateStreaming' in WebAssembly &&
            contentType.startsWith('application/wasm')) {
            // @ts-ignore
            result = await WebAssembly.instantiateStreaming(response, opts);
        }
        else {
            const buffer = await response.arrayBuffer();
            // @ts-ignore
            result = await WebAssembly.instantiate(buffer, opts);
        }
    }
    return result.instance.exports;
};
const wasmHelperCode = wasmHelper.toString();
const wasmPlugin = (config) => {
    return {
        name: 'vite:wasm',
        resolveId(id) {
            if (id === wasmHelperId) {
                return id;
            }
        },
        async load(id) {
            if (id === wasmHelperId) {
                return `export default ${wasmHelperCode}`;
            }
            if (!id.endsWith('.wasm')) {
                return;
            }
            const url = await fileToUrl(id, config, this);
            return `
import initWasm from "${wasmHelperId}"
export default opts => initWasm(opts, ${JSON.stringify(url)})
`;
        }
    };
};

function parseWorkerRequest(id) {
    const { search } = require$$0$8.parse(id);
    if (!search) {
        return null;
    }
    return Object.fromEntries(new require$$0$8.URLSearchParams(search.slice(1)));
}
const WorkerFileId = 'worker_file';
function webWorkerPlugin(config) {
    const isBuild = config.command === 'build';
    return {
        name: 'vite:worker',
        load(id) {
            var _a;
            if (isBuild) {
                const parsedQuery = parseWorkerRequest(id);
                if (parsedQuery &&
                    ((_a = parsedQuery.worker) !== null && _a !== void 0 ? _a : parsedQuery.sharedworker) != null) {
                    return '';
                }
            }
        },
        async transform(_, id) {
            var _a;
            const query = parseWorkerRequest(id);
            if (query && query[WorkerFileId] != null) {
                return {
                    code: `import '${ENV_PUBLIC_PATH}'\n` + _
                };
            }
            if (query == null ||
                (query && ((_a = query.worker) !== null && _a !== void 0 ? _a : query.sharedworker) == null)) {
                return;
            }
            let url;
            if (isBuild) {
                // bundle the file as entry to support imports
                const rollup = require('rollup');
                const bundle = await rollup.rollup({
                    input: cleanUrl(id),
                    plugins: await resolvePlugins({ ...config }, [], [], []),
                    onwarn(warning, warn) {
                        onRollupWarning(warning, warn, config);
                    }
                });
                let code;
                try {
                    const { output } = await bundle.generate({
                        format: 'iife',
                        sourcemap: config.build.sourcemap
                    });
                    code = output[0].code;
                }
                finally {
                    await bundle.close();
                }
                const content = Buffer.from(code);
                if (query.inline != null) {
                    // inline as blob data url
                    return `const encodedJs = "${content.toString('base64')}";
            const blob = typeof window !== "undefined" && window.Blob && new Blob([atob(encodedJs)], { type: "text/javascript;charset=utf-8" });
            export default function WorkerWrapper() {
              const objURL = blob && (window.URL || window.webkitURL).createObjectURL(blob);
              try {
                return objURL ? new Worker(objURL) : new Worker("data:application/javascript;base64," + encodedJs, {type: "module"});
              } finally {
                objURL && (window.URL || window.webkitURL).revokeObjectURL(objURL);
              }
            }`;
                }
                else {
                    const basename = path__default.parse(cleanUrl(id)).name;
                    const contentHash = getAssetHash(content);
                    const fileName = path__default.posix.join(config.build.assetsDir, `${basename}.${contentHash}.js`);
                    url = `__VITE_ASSET__${this.emitFile({
                        fileName,
                        type: 'asset',
                        source: code
                    })}__`;
                }
            }
            else {
                url = await fileToUrl(cleanUrl(id), config, this);
                url = injectQuery(url, WorkerFileId);
            }
            const workerConstructor = query.sharedworker != null ? 'SharedWorker' : 'Worker';
            const workerOptions = { type: 'module' };
            return `export default function WorkerWrapper() {
        return new ${workerConstructor}(${JSON.stringify(url)}, ${JSON.stringify(workerOptions, null, 2)})
      }`;
        }
    };
}

/**
 * A plugin to avoid an aliased AND optimized dep from being aliased in src
 */
function preAliasPlugin() {
    let server;
    return {
        name: 'vite:pre-alias',
        configureServer(_server) {
            server = _server;
        },
        resolveId(id, importer, _, ssr) {
            if (!ssr && bareImportRE.test(id)) {
                return tryOptimizedResolve(id, server, importer);
            }
        }
    };
}

function definePlugin(config) {
    const isBuild = config.command === 'build';
    const userDefine = {};
    for (const key in config.define) {
        const val = config.define[key];
        userDefine[key] = typeof val === 'string' ? val : JSON.stringify(val);
    }
    // during dev, import.meta properties are handled by importAnalysis plugin
    const importMetaKeys = {};
    if (isBuild) {
        const env = {
            ...config.env,
            SSR: !!config.build.ssr
        };
        for (const key in env) {
            importMetaKeys[`import.meta.env.${key}`] = JSON.stringify(env[key]);
        }
        Object.assign(importMetaKeys, {
            'import.meta.env.': `({}).`,
            'import.meta.env': JSON.stringify(config.env),
            'import.meta.hot': `false`
        });
    }
    const replacements = {
        'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || config.mode),
        'global.process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || config.mode),
        'globalThis.process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || config.mode),
        ...userDefine,
        ...importMetaKeys,
        'process.env.': `({}).`,
        'global.process.env.': `({}).`,
        'globalThis.process.env.': `({}).`
    };
    const pattern = new RegExp(
    // Do not allow preceding '.', but do allow preceding '...' for spread operations
    '(?<!(?<!\\.\\.)\\.)\\b(' +
        Object.keys(replacements)
            .map((str) => {
            return str.replace(/[-[\]/{}()*+?.\\^$|]/g, '\\$&');
        })
            .join('|') +
        ')\\b', 'g');
    return {
        name: 'vite:define',
        transform(code, id, ssr) {
            if (!ssr && !isBuild) {
                // for dev we inject actual global defines in the vite client to
                // avoid the transform cost.
                return;
            }
            if (
            // exclude css and static assets for performance
            isCSSRequest(id) ||
                config.assetsInclude(id)) {
                return;
            }
            if (ssr && !isBuild) {
                // ssr + dev, simple replace
                return code.replace(pattern, (_, match) => {
                    return '' + replacements[match];
                });
            }
            const s = new MagicString(code);
            let hasReplaced = false;
            let match;
            while ((match = pattern.exec(code))) {
                hasReplaced = true;
                const start = match.index;
                const end = start + match[0].length;
                const replacement = '' + replacements[match[1]];
                s.overwrite(start, end, replacement);
            }
            if (!hasReplaced) {
                return null;
            }
            const result = { code: s.toString() };
            if (config.build.sourcemap) {
                result.map = s.generateMap({ hires: true });
            }
            return result;
        }
    };
}

async function resolvePlugins(config, prePlugins, normalPlugins, postPlugins) {
    const isBuild = config.command === 'build';
    const buildPlugins = isBuild
        ? (await Promise.resolve().then(function () { return build$1; })).resolveBuildPlugins(config)
        : { pre: [], post: [] };
    return [
        isBuild ? null : preAliasPlugin(),
        alias({ entries: config.resolve.alias }),
        ...prePlugins,
        config.build.polyfillModulePreload
            ? modulePreloadPolyfillPlugin(config)
            : null,
        resolvePlugin({
            ...config.resolve,
            root: config.root,
            isProduction: config.isProduction,
            isBuild,
            ssrConfig: config.ssr,
            asSrc: true
        }),
        htmlInlineScriptProxyPlugin(config),
        cssPlugin(config),
        config.esbuild !== false ? esbuildPlugin(config.esbuild) : null,
        jsonPlugin({
            namedExports: true,
            ...config.json
        }, isBuild),
        wasmPlugin(config),
        webWorkerPlugin(config),
        assetPlugin(config),
        ...normalPlugins,
        definePlugin(config),
        cssPostPlugin(config),
        ...buildPlugins.pre,
        ...postPlugins,
        ...buildPlugins.post,
        // internal server-only plugins are always applied after everything else
        ...(isBuild
            ? []
            : [clientInjectionsPlugin(config), importAnalysisPlugin(config)])
    ].filter(Boolean);
}

var main$1 = {};

/* @flow */

/*::

type DotenvParseOptions = {
  debug?: boolean
}

// keys and values from src
type DotenvParseOutput = { [string]: string }

type DotenvConfigOptions = {
  path?: string, // path to .env file
  encoding?: string, // encoding of .env file
  debug?: string // turn on logging for debugging purposes
}

type DotenvConfigOutput = {
  parsed?: DotenvParseOutput,
  error?: Error
}

*/

const fs = fs__default;
const path = path__default;
const os = require$$0__default$1;

function log (message /*: string */) {
  console.log(`[dotenv][DEBUG] ${message}`);
}

const NEWLINE = '\n';
const RE_INI_KEY_VAL = /^\s*([\w.-]+)\s*=\s*(.*)?\s*$/;
const RE_NEWLINES = /\\n/g;
const NEWLINES_MATCH = /\r\n|\n|\r/;

// Parses src into an Object
function parse$1 (src /*: string | Buffer */, options /*: ?DotenvParseOptions */) /*: DotenvParseOutput */ {
  const debug = Boolean(options && options.debug);
  const obj = {};

  // convert Buffers before splitting into lines and processing
  src.toString().split(NEWLINES_MATCH).forEach(function (line, idx) {
    // matching "KEY' and 'VAL' in 'KEY=VAL'
    const keyValueArr = line.match(RE_INI_KEY_VAL);
    // matched?
    if (keyValueArr != null) {
      const key = keyValueArr[1];
      // default undefined or missing values to empty string
      let val = (keyValueArr[2] || '');
      const end = val.length - 1;
      const isDoubleQuoted = val[0] === '"' && val[end] === '"';
      const isSingleQuoted = val[0] === "'" && val[end] === "'";

      // if single or double quoted, remove quotes
      if (isSingleQuoted || isDoubleQuoted) {
        val = val.substring(1, end);

        // if double quoted, expand newlines
        if (isDoubleQuoted) {
          val = val.replace(RE_NEWLINES, NEWLINE);
        }
      } else {
        // remove surrounding whitespace
        val = val.trim();
      }

      obj[key] = val;
    } else if (debug) {
      log(`did not match key and value when parsing line ${idx + 1}: ${line}`);
    }
  });

  return obj
}

function resolveHome (envPath) {
  return envPath[0] === '~' ? path.join(os.homedir(), envPath.slice(1)) : envPath
}

// Populates process.env from .env file
function config (options /*: ?DotenvConfigOptions */) /*: DotenvConfigOutput */ {
  let dotenvPath = path.resolve(process.cwd(), '.env');
  let encoding /*: string */ = 'utf8';
  let debug = false;

  if (options) {
    if (options.path != null) {
      dotenvPath = resolveHome(options.path);
    }
    if (options.encoding != null) {
      encoding = options.encoding;
    }
    if (options.debug != null) {
      debug = true;
    }
  }

  try {
    // specifying an encoding returns a string instead of a buffer
    const parsed = parse$1(fs.readFileSync(dotenvPath, { encoding }), { debug });

    Object.keys(parsed).forEach(function (key) {
      if (!Object.prototype.hasOwnProperty.call(process.env, key)) {
        process.env[key] = parsed[key];
      } else if (debug) {
        log(`"${key}" is already defined in \`process.env\` and will not be overwritten`);
      }
    });

    return { parsed }
  } catch (e) {
    return { error: e }
  }
}

main$1.config = config;
main$1.parse = parse$1;

var dotenvExpand = function (config) {
  // if ignoring process.env, use a blank object
  var environment = config.ignoreProcessEnv ? {} : process.env;

  var interpolate = function (envValue) {
    var matches = envValue.match(/(.?\${?(?:[a-zA-Z0-9_]+)?}?)/g) || [];

    return matches.reduce(function (newEnv, match) {
      var parts = /(.?)\${?([a-zA-Z0-9_]+)?}?/g.exec(match);
      var prefix = parts[1];

      var value, replacePart;

      if (prefix === '\\') {
        replacePart = parts[0];
        value = replacePart.replace('\\$', '$');
      } else {
        var key = parts[2];
        replacePart = parts[0].substring(prefix.length);
        // process.env value 'wins' over .env file's value
        value = environment.hasOwnProperty(key) ? environment[key] : (config.parsed[key] || '');

        // Resolve recursive interpolations
        value = interpolate(value);
      }

      return newEnv.replace(replacePart, value)
    }, envValue)
  };

  for (var configKey in config.parsed) {
    var value = environment.hasOwnProperty(configKey) ? environment[configKey] : config.parsed[configKey];

    config.parsed[configKey] = interpolate(value);
  }

  for (var processKey in config.parsed) {
    environment[processKey] = config.parsed[processKey];
  }

  return config
};

var main = dotenvExpand;

const debug$1 = createDebugger('vite:config');
/**
 * Type helper to make it easier to use vite.config.ts
 * accepts a direct {@link UserConfig} object, or a function that returns it.
 * The function receives a {@link ConfigEnv} object that exposes two properties:
 * `command` (either `'build'` or `'serve'`), and `mode`.
 */
function defineConfig(config) {
    return config;
}
async function resolveConfig(inlineConfig, command, defaultMode = 'development') {
    var _a, _b, _c, _d, _e, _f, _g, _h, _j;
    let config = inlineConfig;
    let configFileDependencies = [];
    let mode = inlineConfig.mode || defaultMode;
    // some dependencies e.g. @vue/compiler-* relies on NODE_ENV for getting
    // production-specific behavior, so set it here even though we haven't
    // resolve the final mode yet
    if (mode === 'production') {
        process.env.NODE_ENV = 'production';
    }
    const configEnv = {
        mode,
        command
    };
    let { configFile } = config;
    if (configFile !== false) {
        const loadResult = await loadConfigFromFile(configEnv, configFile, config.root, config.logLevel);
        if (loadResult) {
            config = mergeConfig(loadResult.config, config);
            configFile = loadResult.path;
            configFileDependencies = loadResult.dependencies;
        }
    }
    // Define logger
    const logger = createLogger(config.logLevel, {
        allowClearScreen: config.clearScreen,
        customLogger: config.customLogger
    });
    // user config may provide an alternative mode. But --mode has a higher prority
    mode = inlineConfig.mode || config.mode || mode;
    configEnv.mode = mode;
    // resolve plugins
    const rawUserPlugins = (config.plugins || []).flat().filter((p) => {
        if (!p) {
            return false;
        }
        else if (!p.apply) {
            return true;
        }
        else if (typeof p.apply === 'function') {
            return p.apply({ ...config, mode }, configEnv);
        }
        else {
            return p.apply === command;
        }
    });
    const [prePlugins, normalPlugins, postPlugins] = sortUserPlugins(rawUserPlugins);
    // run config hooks
    const userPlugins = [...prePlugins, ...normalPlugins, ...postPlugins];
    for (const p of userPlugins) {
        if (p.config) {
            const res = await p.config(config, configEnv);
            if (res) {
                config = mergeConfig(config, res);
            }
        }
    }
    // resolve root
    const resolvedRoot = normalizePath$4(config.root ? path__default.resolve(config.root) : process.cwd());
    const clientAlias = [
        { find: /^[\/]?@vite\/env/, replacement: () => ENV_ENTRY },
        { find: /^[\/]?@vite\/client/, replacement: () => CLIENT_ENTRY }
    ];
    // resolve alias with internal client alias
    const resolvedAlias = mergeAlias(
    // @ts-ignore because @rollup/plugin-alias' type doesn't allow function
    // replacement, but its implementation does work with function values.
    clientAlias, ((_a = config.resolve) === null || _a === void 0 ? void 0 : _a.alias) || config.alias || []);
    const resolveOptions = {
        dedupe: config.dedupe,
        ...config.resolve,
        alias: resolvedAlias
    };
    // load .env files
    const envDir = config.envDir
        ? normalizePath$4(path__default.resolve(resolvedRoot, config.envDir))
        : resolvedRoot;
    const userEnv = inlineConfig.envFile !== false &&
        loadEnv(mode, envDir, resolveEnvPrefix(config));
    // Note it is possible for user to have a custom mode, e.g. `staging` where
    // production-like behavior is expected. This is indicated by NODE_ENV=production
    // loaded from `.staging.env` and set by us as VITE_USER_NODE_ENV
    const isProduction = (process.env.VITE_USER_NODE_ENV || mode) === 'production';
    if (isProduction) {
        // in case default mode was not production and is overwritten
        process.env.NODE_ENV = 'production';
    }
    // resolve public base url
    const BASE_URL = resolveBaseUrl(config.base, command === 'build', logger);
    const resolvedBuildOptions = resolveBuildOptions(config.build);
    // resolve cache directory
    const pkgPath = lookupFile(resolvedRoot, [`package.json`], true /* pathOnly */);
    const cacheDir = config.cacheDir
        ? path__default.resolve(resolvedRoot, config.cacheDir)
        : pkgPath && path__default.join(path__default.dirname(pkgPath), `node_modules/.vite`);
    const assetsFilter = config.assetsInclude
        ? createFilter$1(config.assetsInclude)
        : () => false;
    // create an internal resolver to be used in special scenarios, e.g.
    // optimizer & handling css @imports
    const createResolver = (options) => {
        let aliasContainer;
        let resolverContainer;
        return async (id, importer, aliasOnly, ssr) => {
            var _a;
            let container;
            if (aliasOnly) {
                container =
                    aliasContainer ||
                        (aliasContainer = await createPluginContainer({
                            ...resolved,
                            plugins: [alias({ entries: resolved.resolve.alias })]
                        }));
            }
            else {
                container =
                    resolverContainer ||
                        (resolverContainer = await createPluginContainer({
                            ...resolved,
                            plugins: [
                                alias({ entries: resolved.resolve.alias }),
                                resolvePlugin({
                                    ...resolved.resolve,
                                    root: resolvedRoot,
                                    isProduction,
                                    isBuild: command === 'build',
                                    ssrConfig: resolved.ssr,
                                    asSrc: true,
                                    preferRelative: false,
                                    tryIndex: true,
                                    ...options
                                })
                            ]
                        }));
            }
            return (_a = (await container.resolveId(id, importer, undefined, ssr))) === null || _a === void 0 ? void 0 : _a.id;
        };
    };
    const { publicDir } = config;
    const resolvedPublicDir = publicDir !== false && publicDir !== ''
        ? path__default.resolve(resolvedRoot, typeof publicDir === 'string' ? publicDir : 'public')
        : '';
    const resolved = {
        ...config,
        configFile: configFile ? normalizePath$4(configFile) : undefined,
        configFileDependencies,
        inlineConfig,
        root: resolvedRoot,
        base: BASE_URL,
        resolve: resolveOptions,
        publicDir: resolvedPublicDir,
        cacheDir,
        command,
        mode,
        isProduction,
        plugins: userPlugins,
        server: resolveServerOptions(resolvedRoot, config.server),
        build: resolvedBuildOptions,
        env: {
            ...userEnv,
            BASE_URL,
            MODE: mode,
            DEV: !isProduction,
            PROD: isProduction
        },
        assetsInclude(file) {
            return DEFAULT_ASSETS_RE.test(file) || assetsFilter(file);
        },
        logger,
        createResolver,
        optimizeDeps: {
            ...config.optimizeDeps,
            esbuildOptions: {
                keepNames: (_b = config.optimizeDeps) === null || _b === void 0 ? void 0 : _b.keepNames,
                preserveSymlinks: (_c = config.resolve) === null || _c === void 0 ? void 0 : _c.preserveSymlinks,
                ...(_d = config.optimizeDeps) === null || _d === void 0 ? void 0 : _d.esbuildOptions
            }
        }
    };
    resolved.plugins = await resolvePlugins(resolved, prePlugins, normalPlugins, postPlugins);
    // call configResolved hooks
    await Promise.all(userPlugins.map((p) => { var _a; return (_a = p.configResolved) === null || _a === void 0 ? void 0 : _a.call(p, resolved); }));
    if (process.env.DEBUG) {
        debug$1(`using resolved config: %O`, {
            ...resolved,
            plugins: resolved.plugins.map((p) => p.name)
        });
    }
    // TODO Deprecation warnings - remove when out of beta
    const logDeprecationWarning = (deprecatedOption, hint, error) => {
        logger.warn(source.yellow.bold(`(!) "${deprecatedOption}" option is deprecated. ${hint}${error ? `\n${error.stack}` : ''}`));
    };
    if ((_e = config.build) === null || _e === void 0 ? void 0 : _e.base) {
        logDeprecationWarning('build.base', '"base" is now a root-level config option.');
        config.base = config.build.base;
    }
    Object.defineProperty(resolvedBuildOptions, 'base', {
        enumerable: false,
        get() {
            logDeprecationWarning('build.base', '"base" is now a root-level config option.', new Error());
            return resolved.base;
        }
    });
    if (config.alias) {
        logDeprecationWarning('alias', 'Use "resolve.alias" instead.');
    }
    Object.defineProperty(resolved, 'alias', {
        enumerable: false,
        get() {
            logDeprecationWarning('alias', 'Use "resolve.alias" instead.', new Error());
            return resolved.resolve.alias;
        }
    });
    if (config.dedupe) {
        logDeprecationWarning('dedupe', 'Use "resolve.dedupe" instead.');
    }
    Object.defineProperty(resolved, 'dedupe', {
        enumerable: false,
        get() {
            logDeprecationWarning('dedupe', 'Use "resolve.dedupe" instead.', new Error());
            return resolved.resolve.dedupe;
        }
    });
    if ((_f = config.optimizeDeps) === null || _f === void 0 ? void 0 : _f.keepNames) {
        logDeprecationWarning('optimizeDeps.keepNames', 'Use "optimizeDeps.esbuildOptions.keepNames" instead.');
    }
    Object.defineProperty(resolved.optimizeDeps, 'keepNames', {
        enumerable: false,
        get() {
            var _a;
            logDeprecationWarning('optimizeDeps.keepNames', 'Use "optimizeDeps.esbuildOptions.keepNames" instead.', new Error());
            return (_a = resolved.optimizeDeps.esbuildOptions) === null || _a === void 0 ? void 0 : _a.keepNames;
        }
    });
    if ((_g = config.build) === null || _g === void 0 ? void 0 : _g.polyfillDynamicImport) {
        logDeprecationWarning('build.polyfillDynamicImport', '"polyfillDynamicImport" has been removed. Please use @vitejs/plugin-legacy if your target browsers do not support dynamic imports.');
    }
    Object.defineProperty(resolvedBuildOptions, 'polyfillDynamicImport', {
        enumerable: false,
        get() {
            logDeprecationWarning('build.polyfillDynamicImport', '"polyfillDynamicImport" has been removed. Please use @vitejs/plugin-legacy if your target browsers do not support dynamic imports.', new Error());
            return false;
        }
    });
    if ((_h = config.build) === null || _h === void 0 ? void 0 : _h.cleanCssOptions) {
        logDeprecationWarning('build.cleanCssOptions', 'Vite now uses esbuild for CSS minification.');
    }
    if (((_j = config.build) === null || _j === void 0 ? void 0 : _j.terserOptions) && config.build.minify === 'esbuild') {
        logger.warn(source.yellow(`build.terserOptions is specified but build.minify is not set to use Terser. ` +
            `Note Vite now defaults to use esbuild for minification. If you still ` +
            `prefer Terser, set build.minify to "terser".`));
    }
    return resolved;
}
/**
 * Resolve base. Note that some users use Vite to build for non-web targets like
 * electron or expects to deploy
 */
function resolveBaseUrl(base = '/', isBuild, logger) {
    // #1669 special treatment for empty for same dir relative base
    if (base === '' || base === './') {
        return isBuild ? base : '/';
    }
    if (base.startsWith('.')) {
        logger.warn(source.yellow.bold(`(!) invalid "base" option: ${base}. The value can only be an absolute ` +
            `URL, ./, or an empty string.`));
        base = '/';
    }
    // external URL
    if (isExternalUrl(base)) {
        if (!isBuild) {
            // get base from full url during dev
            const parsed = require$$0$8.parse(base);
            base = parsed.pathname || '/';
        }
    }
    else {
        // ensure leading slash
        if (!base.startsWith('/')) {
            logger.warn(source.yellow.bold(`(!) "base" option should start with a slash.`));
            base = '/' + base;
        }
    }
    // ensure ending slash
    if (!base.endsWith('/')) {
        logger.warn(source.yellow.bold(`(!) "base" option should end with a slash.`));
        base += '/';
    }
    return base;
}
function mergeConfigRecursively(a, b, rootPath) {
    const merged = { ...a };
    for (const key in b) {
        const value = b[key];
        if (value == null) {
            continue;
        }
        const existing = merged[key];
        if (Array.isArray(existing) && Array.isArray(value)) {
            merged[key] = [...existing, ...value];
            continue;
        }
        if (isObject$3(existing) && isObject$3(value)) {
            merged[key] = mergeConfigRecursively(existing, value, rootPath ? `${rootPath}.${key}` : key);
            continue;
        }
        // fields that require special handling
        if (existing != null) {
            if (key === 'alias' && (rootPath === 'resolve' || rootPath === '')) {
                merged[key] = mergeAlias(existing, value);
                continue;
            }
            else if (key === 'assetsInclude' && rootPath === '') {
                merged[key] = [].concat(existing, value);
                continue;
            }
            else if (key === 'noExternal' && existing === true) {
                continue;
            }
        }
        merged[key] = value;
    }
    return merged;
}
function mergeConfig(a, b, isRoot = true) {
    return mergeConfigRecursively(a, b, isRoot ? '' : '.');
}
function mergeAlias(a = [], b = []) {
    return [...normalizeAlias(a), ...normalizeAlias(b)];
}
function normalizeAlias(o) {
    return Array.isArray(o)
        ? o.map(normalizeSingleAlias)
        : Object.keys(o).map((find) => normalizeSingleAlias({
            find,
            replacement: o[find]
        }));
}
// https://github.com/vitejs/vite/issues/1363
// work around https://github.com/rollup/plugins/issues/759
function normalizeSingleAlias({ find, replacement }) {
    if (typeof find === 'string' &&
        find.endsWith('/') &&
        replacement.endsWith('/')) {
        find = find.slice(0, find.length - 1);
        replacement = replacement.slice(0, replacement.length - 1);
    }
    return { find, replacement };
}
function sortUserPlugins(plugins) {
    const prePlugins = [];
    const postPlugins = [];
    const normalPlugins = [];
    if (plugins) {
        plugins.flat().forEach((p) => {
            if (p.enforce === 'pre')
                prePlugins.push(p);
            else if (p.enforce === 'post')
                postPlugins.push(p);
            else
                normalPlugins.push(p);
        });
    }
    return [prePlugins, normalPlugins, postPlugins];
}
async function loadConfigFromFile(configEnv, configFile, configRoot = process.cwd(), logLevel) {
    const start = perf_hooks.performance.now();
    const getTime = () => `${(perf_hooks.performance.now() - start).toFixed(2)}ms`;
    let resolvedPath;
    let isTS = false;
    let isMjs = false;
    let dependencies = [];
    // check package.json for type: "module" and set `isMjs` to true
    try {
        const pkg = lookupFile(configRoot, ['package.json']);
        if (pkg && JSON.parse(pkg).type === 'module') {
            isMjs = true;
        }
    }
    catch (e) { }
    if (configFile) {
        // explicit config path is always resolved from cwd
        resolvedPath = path__default.resolve(configFile);
        isTS = configFile.endsWith('.ts');
        if (configFile.endsWith('.mjs')) {
            isMjs = true;
        }
    }
    else {
        // implicit config file loaded from inline root (if present)
        // otherwise from cwd
        const jsconfigFile = path__default.resolve(configRoot, 'vite.config.js');
        if (fs__default.existsSync(jsconfigFile)) {
            resolvedPath = jsconfigFile;
        }
        if (!resolvedPath) {
            const mjsconfigFile = path__default.resolve(configRoot, 'vite.config.mjs');
            if (fs__default.existsSync(mjsconfigFile)) {
                resolvedPath = mjsconfigFile;
                isMjs = true;
            }
        }
        if (!resolvedPath) {
            const tsconfigFile = path__default.resolve(configRoot, 'vite.config.ts');
            if (fs__default.existsSync(tsconfigFile)) {
                resolvedPath = tsconfigFile;
                isTS = true;
            }
        }
    }
    if (!resolvedPath) {
        debug$1('no config file found.');
        return null;
    }
    try {
        let userConfig;
        if (isMjs) {
            const fileUrl = require('url').pathToFileURL(resolvedPath);
            if (isTS) {
                // before we can register loaders without requiring users to run node
                // with --experimental-loader themselves, we have to do a hack here:
                // bundle the config file w/ ts transforms first, write it to disk,
                // load it with native Node ESM, then delete the file.
                const bundled = await bundleConfigFile(resolvedPath, true);
                dependencies = bundled.dependencies;
                fs__default.writeFileSync(resolvedPath + '.js', bundled.code);
                userConfig = (await dynamicImport(`${fileUrl}.js?t=${Date.now()}`))
                    .default;
                fs__default.unlinkSync(resolvedPath + '.js');
                debug$1(`TS + native esm config loaded in ${getTime()}`, fileUrl);
            }
            else {
                // using Function to avoid this from being compiled away by TS/Rollup
                // append a query so that we force reload fresh config in case of
                // server restart
                userConfig = (await dynamicImport(`${fileUrl}?t=${Date.now()}`)).default;
                debug$1(`native esm config loaded in ${getTime()}`, fileUrl);
            }
        }
        if (!userConfig && !isTS && !isMjs) {
            // 1. try to directly require the module (assuming commonjs)
            try {
                // clear cache in case of server restart
                delete require.cache[require.resolve(resolvedPath)];
                userConfig = require(resolvedPath);
                debug$1(`cjs config loaded in ${getTime()}`);
            }
            catch (e) {
                const ignored = new RegExp([
                    `Cannot use import statement`,
                    `Must use import to load ES Module`,
                    // #1635, #2050 some Node 12.x versions don't have esm detection
                    // so it throws normal syntax errors when encountering esm syntax
                    `Unexpected token`,
                    `Unexpected identifier`
                ].join('|'));
                if (!ignored.test(e.message)) {
                    throw e;
                }
            }
        }
        if (!userConfig) {
            // 2. if we reach here, the file is ts or using es import syntax, or
            // the user has type: "module" in their package.json (#917)
            // transpile es import syntax to require syntax using rollup.
            // lazy require rollup (it's actually in dependencies)
            const bundled = await bundleConfigFile(resolvedPath);
            dependencies = bundled.dependencies;
            userConfig = await loadConfigFromBundledFile(resolvedPath, bundled.code);
            debug$1(`bundled config file loaded in ${getTime()}`);
        }
        const config = await (typeof userConfig === 'function'
            ? userConfig(configEnv)
            : userConfig);
        if (!isObject$3(config)) {
            throw new Error(`config must export or return an object.`);
        }
        return {
            path: normalizePath$4(resolvedPath),
            config,
            dependencies
        };
    }
    catch (e) {
        createLogger(logLevel).error(source.red(`failed to load config from ${resolvedPath}`), { error: e });
        throw e;
    }
}
async function bundleConfigFile(fileName, mjs = false) {
    const result = await esbuild.build({
        absWorkingDir: process.cwd(),
        entryPoints: [fileName],
        outfile: 'out.js',
        write: false,
        platform: 'node',
        bundle: true,
        format: mjs ? 'esm' : 'cjs',
        sourcemap: 'inline',
        metafile: true,
        plugins: [
            {
                name: 'externalize-deps',
                setup(build) {
                    build.onResolve({ filter: /.*/ }, (args) => {
                        const id = args.path;
                        if (id[0] !== '.' && !path__default.isAbsolute(id)) {
                            return {
                                external: true
                            };
                        }
                    });
                }
            },
            {
                name: 'replace-import-meta',
                setup(build) {
                    build.onLoad({ filter: /\.[jt]s$/ }, async (args) => {
                        const contents = await fs__default.promises.readFile(args.path, 'utf8');
                        return {
                            loader: args.path.endsWith('.ts') ? 'ts' : 'js',
                            contents: contents
                                .replace(/\bimport\.meta\.url\b/g, JSON.stringify(`file://${args.path}`))
                                .replace(/\b__dirname\b/g, JSON.stringify(path__default.dirname(args.path)))
                                .replace(/\b__filename\b/g, JSON.stringify(args.path))
                        };
                    });
                }
            }
        ]
    });
    const { text } = result.outputFiles[0];
    return {
        code: text,
        dependencies: result.metafile ? Object.keys(result.metafile.inputs) : []
    };
}
async function loadConfigFromBundledFile(fileName, bundledCode) {
    const extension = path__default.extname(fileName);
    const defaultLoader = require.extensions[extension];
    require.extensions[extension] = (module, filename) => {
        if (filename === fileName) {
            module._compile(bundledCode, filename);
        }
        else {
            defaultLoader(module, filename);
        }
    };
    // clear cache in case of server restart
    delete require.cache[require.resolve(fileName)];
    const raw = require(fileName);
    const config = raw.__esModule ? raw.default : raw;
    require.extensions[extension] = defaultLoader;
    return config;
}
function loadEnv(mode, envDir, prefixes = 'VITE_') {
    if (mode === 'local') {
        throw new Error(`"local" cannot be used as a mode name because it conflicts with ` +
            `the .local postfix for .env files.`);
    }
    prefixes = arraify(prefixes);
    const env = {};
    const envFiles = [
        /** mode local file */ `.env.${mode}.local`,
        /** mode file */ `.env.${mode}`,
        /** local file */ `.env.local`,
        /** default file */ `.env`
    ];
    // check if there are actual env variables starting with VITE_*
    // these are typically provided inline and should be prioritized
    for (const key in process.env) {
        if (prefixes.some((prefix) => key.startsWith(prefix)) &&
            env[key] === undefined) {
            env[key] = process.env[key];
        }
    }
    for (const file of envFiles) {
        const path = lookupFile(envDir, [file], true);
        if (path) {
            const parsed = main$1.parse(fs__default.readFileSync(path), {
                debug: !!process.env.DEBUG || undefined
            });
            // let environment variables use each other
            main({
                parsed,
                // prevent process.env mutation
                ignoreProcessEnv: true
            });
            // only keys that start with prefix are exposed to client
            for (const [key, value] of Object.entries(parsed)) {
                if (prefixes.some((prefix) => key.startsWith(prefix)) &&
                    env[key] === undefined) {
                    env[key] = value;
                }
                else if (key === 'NODE_ENV') {
                    // NODE_ENV override in .env file
                    process.env.VITE_USER_NODE_ENV = value;
                }
            }
        }
    }
    return env;
}
function resolveEnvPrefix({ envPrefix = 'VITE_' }) {
    envPrefix = arraify(envPrefix);
    if (envPrefix.some((prefix) => prefix === '')) {
        throw new Error(`envPrefix option contains value '', which could lead unexpected exposure of sensitive information.`);
    }
    return envPrefix;
}

var compression$2 = {exports: {}};

var negotiator = {exports: {}};

var charset = {exports: {}};

/**
 * negotiator
 * Copyright(c) 2012 Isaac Z. Schlueter
 * Copyright(c) 2014 Federico Romero
 * Copyright(c) 2014-2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

charset.exports = preferredCharsets;
charset.exports.preferredCharsets = preferredCharsets;

/**
 * Module variables.
 * @private
 */

var simpleCharsetRegExp = /^\s*([^\s;]+)\s*(?:;(.*))?$/;

/**
 * Parse the Accept-Charset header.
 * @private
 */

function parseAcceptCharset(accept) {
  var accepts = accept.split(',');

  for (var i = 0, j = 0; i < accepts.length; i++) {
    var charset = parseCharset(accepts[i].trim(), i);

    if (charset) {
      accepts[j++] = charset;
    }
  }

  // trim accepts
  accepts.length = j;

  return accepts;
}

/**
 * Parse a charset from the Accept-Charset header.
 * @private
 */

function parseCharset(str, i) {
  var match = simpleCharsetRegExp.exec(str);
  if (!match) return null;

  var charset = match[1];
  var q = 1;
  if (match[2]) {
    var params = match[2].split(';');
    for (var j = 0; j < params.length; j++) {
      var p = params[j].trim().split('=');
      if (p[0] === 'q') {
        q = parseFloat(p[1]);
        break;
      }
    }
  }

  return {
    charset: charset,
    q: q,
    i: i
  };
}

/**
 * Get the priority of a charset.
 * @private
 */

function getCharsetPriority(charset, accepted, index) {
  var priority = {o: -1, q: 0, s: 0};

  for (var i = 0; i < accepted.length; i++) {
    var spec = specify$3(charset, accepted[i], index);

    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
      priority = spec;
    }
  }

  return priority;
}

/**
 * Get the specificity of the charset.
 * @private
 */

function specify$3(charset, spec, index) {
  var s = 0;
  if(spec.charset.toLowerCase() === charset.toLowerCase()){
    s |= 1;
  } else if (spec.charset !== '*' ) {
    return null
  }

  return {
    i: index,
    o: spec.i,
    q: spec.q,
    s: s
  }
}

/**
 * Get the preferred charsets from an Accept-Charset header.
 * @public
 */

function preferredCharsets(accept, provided) {
  // RFC 2616 sec 14.2: no header = *
  var accepts = parseAcceptCharset(accept === undefined ? '*' : accept || '');

  if (!provided) {
    // sorted list of all charsets
    return accepts
      .filter(isQuality$3)
      .sort(compareSpecs$3)
      .map(getFullCharset);
  }

  var priorities = provided.map(function getPriority(type, index) {
    return getCharsetPriority(type, accepts, index);
  });

  // sorted list of accepted charsets
  return priorities.filter(isQuality$3).sort(compareSpecs$3).map(function getCharset(priority) {
    return provided[priorities.indexOf(priority)];
  });
}

/**
 * Compare two specs.
 * @private
 */

function compareSpecs$3(a, b) {
  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
}

/**
 * Get full charset string.
 * @private
 */

function getFullCharset(spec) {
  return spec.charset;
}

/**
 * Check if a spec has any quality.
 * @private
 */

function isQuality$3(spec) {
  return spec.q > 0;
}

var encoding = {exports: {}};

/**
 * negotiator
 * Copyright(c) 2012 Isaac Z. Schlueter
 * Copyright(c) 2014 Federico Romero
 * Copyright(c) 2014-2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

encoding.exports = preferredEncodings;
encoding.exports.preferredEncodings = preferredEncodings;

/**
 * Module variables.
 * @private
 */

var simpleEncodingRegExp = /^\s*([^\s;]+)\s*(?:;(.*))?$/;

/**
 * Parse the Accept-Encoding header.
 * @private
 */

function parseAcceptEncoding(accept) {
  var accepts = accept.split(',');
  var hasIdentity = false;
  var minQuality = 1;

  for (var i = 0, j = 0; i < accepts.length; i++) {
    var encoding = parseEncoding(accepts[i].trim(), i);

    if (encoding) {
      accepts[j++] = encoding;
      hasIdentity = hasIdentity || specify$2('identity', encoding);
      minQuality = Math.min(minQuality, encoding.q || 1);
    }
  }

  if (!hasIdentity) {
    /*
     * If identity doesn't explicitly appear in the accept-encoding header,
     * it's added to the list of acceptable encoding with the lowest q
     */
    accepts[j++] = {
      encoding: 'identity',
      q: minQuality,
      i: i
    };
  }

  // trim accepts
  accepts.length = j;

  return accepts;
}

/**
 * Parse an encoding from the Accept-Encoding header.
 * @private
 */

function parseEncoding(str, i) {
  var match = simpleEncodingRegExp.exec(str);
  if (!match) return null;

  var encoding = match[1];
  var q = 1;
  if (match[2]) {
    var params = match[2].split(';');
    for (var j = 0; j < params.length; j++) {
      var p = params[j].trim().split('=');
      if (p[0] === 'q') {
        q = parseFloat(p[1]);
        break;
      }
    }
  }

  return {
    encoding: encoding,
    q: q,
    i: i
  };
}

/**
 * Get the priority of an encoding.
 * @private
 */

function getEncodingPriority(encoding, accepted, index) {
  var priority = {o: -1, q: 0, s: 0};

  for (var i = 0; i < accepted.length; i++) {
    var spec = specify$2(encoding, accepted[i], index);

    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
      priority = spec;
    }
  }

  return priority;
}

/**
 * Get the specificity of the encoding.
 * @private
 */

function specify$2(encoding, spec, index) {
  var s = 0;
  if(spec.encoding.toLowerCase() === encoding.toLowerCase()){
    s |= 1;
  } else if (spec.encoding !== '*' ) {
    return null
  }

  return {
    i: index,
    o: spec.i,
    q: spec.q,
    s: s
  }
}
/**
 * Get the preferred encodings from an Accept-Encoding header.
 * @public
 */

function preferredEncodings(accept, provided) {
  var accepts = parseAcceptEncoding(accept || '');

  if (!provided) {
    // sorted list of all encodings
    return accepts
      .filter(isQuality$2)
      .sort(compareSpecs$2)
      .map(getFullEncoding);
  }

  var priorities = provided.map(function getPriority(type, index) {
    return getEncodingPriority(type, accepts, index);
  });

  // sorted list of accepted encodings
  return priorities.filter(isQuality$2).sort(compareSpecs$2).map(function getEncoding(priority) {
    return provided[priorities.indexOf(priority)];
  });
}

/**
 * Compare two specs.
 * @private
 */

function compareSpecs$2(a, b) {
  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
}

/**
 * Get full encoding string.
 * @private
 */

function getFullEncoding(spec) {
  return spec.encoding;
}

/**
 * Check if a spec has any quality.
 * @private
 */

function isQuality$2(spec) {
  return spec.q > 0;
}

var language = {exports: {}};

/**
 * negotiator
 * Copyright(c) 2012 Isaac Z. Schlueter
 * Copyright(c) 2014 Federico Romero
 * Copyright(c) 2014-2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

language.exports = preferredLanguages;
language.exports.preferredLanguages = preferredLanguages;

/**
 * Module variables.
 * @private
 */

var simpleLanguageRegExp = /^\s*([^\s\-;]+)(?:-([^\s;]+))?\s*(?:;(.*))?$/;

/**
 * Parse the Accept-Language header.
 * @private
 */

function parseAcceptLanguage(accept) {
  var accepts = accept.split(',');

  for (var i = 0, j = 0; i < accepts.length; i++) {
    var language = parseLanguage(accepts[i].trim(), i);

    if (language) {
      accepts[j++] = language;
    }
  }

  // trim accepts
  accepts.length = j;

  return accepts;
}

/**
 * Parse a language from the Accept-Language header.
 * @private
 */

function parseLanguage(str, i) {
  var match = simpleLanguageRegExp.exec(str);
  if (!match) return null;

  var prefix = match[1],
    suffix = match[2],
    full = prefix;

  if (suffix) full += "-" + suffix;

  var q = 1;
  if (match[3]) {
    var params = match[3].split(';');
    for (var j = 0; j < params.length; j++) {
      var p = params[j].split('=');
      if (p[0] === 'q') q = parseFloat(p[1]);
    }
  }

  return {
    prefix: prefix,
    suffix: suffix,
    q: q,
    i: i,
    full: full
  };
}

/**
 * Get the priority of a language.
 * @private
 */

function getLanguagePriority(language, accepted, index) {
  var priority = {o: -1, q: 0, s: 0};

  for (var i = 0; i < accepted.length; i++) {
    var spec = specify$1(language, accepted[i], index);

    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
      priority = spec;
    }
  }

  return priority;
}

/**
 * Get the specificity of the language.
 * @private
 */

function specify$1(language, spec, index) {
  var p = parseLanguage(language);
  if (!p) return null;
  var s = 0;
  if(spec.full.toLowerCase() === p.full.toLowerCase()){
    s |= 4;
  } else if (spec.prefix.toLowerCase() === p.full.toLowerCase()) {
    s |= 2;
  } else if (spec.full.toLowerCase() === p.prefix.toLowerCase()) {
    s |= 1;
  } else if (spec.full !== '*' ) {
    return null
  }

  return {
    i: index,
    o: spec.i,
    q: spec.q,
    s: s
  }
}
/**
 * Get the preferred languages from an Accept-Language header.
 * @public
 */

function preferredLanguages(accept, provided) {
  // RFC 2616 sec 14.4: no header = *
  var accepts = parseAcceptLanguage(accept === undefined ? '*' : accept || '');

  if (!provided) {
    // sorted list of all languages
    return accepts
      .filter(isQuality$1)
      .sort(compareSpecs$1)
      .map(getFullLanguage);
  }

  var priorities = provided.map(function getPriority(type, index) {
    return getLanguagePriority(type, accepts, index);
  });

  // sorted list of accepted languages
  return priorities.filter(isQuality$1).sort(compareSpecs$1).map(function getLanguage(priority) {
    return provided[priorities.indexOf(priority)];
  });
}

/**
 * Compare two specs.
 * @private
 */

function compareSpecs$1(a, b) {
  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
}

/**
 * Get full language string.
 * @private
 */

function getFullLanguage(spec) {
  return spec.full;
}

/**
 * Check if a spec has any quality.
 * @private
 */

function isQuality$1(spec) {
  return spec.q > 0;
}

var mediaType = {exports: {}};

/**
 * negotiator
 * Copyright(c) 2012 Isaac Z. Schlueter
 * Copyright(c) 2014 Federico Romero
 * Copyright(c) 2014-2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

mediaType.exports = preferredMediaTypes;
mediaType.exports.preferredMediaTypes = preferredMediaTypes;

/**
 * Module variables.
 * @private
 */

var simpleMediaTypeRegExp = /^\s*([^\s\/;]+)\/([^;\s]+)\s*(?:;(.*))?$/;

/**
 * Parse the Accept header.
 * @private
 */

function parseAccept(accept) {
  var accepts = splitMediaTypes(accept);

  for (var i = 0, j = 0; i < accepts.length; i++) {
    var mediaType = parseMediaType(accepts[i].trim(), i);

    if (mediaType) {
      accepts[j++] = mediaType;
    }
  }

  // trim accepts
  accepts.length = j;

  return accepts;
}

/**
 * Parse a media type from the Accept header.
 * @private
 */

function parseMediaType(str, i) {
  var match = simpleMediaTypeRegExp.exec(str);
  if (!match) return null;

  var params = Object.create(null);
  var q = 1;
  var subtype = match[2];
  var type = match[1];

  if (match[3]) {
    var kvps = splitParameters(match[3]).map(splitKeyValuePair);

    for (var j = 0; j < kvps.length; j++) {
      var pair = kvps[j];
      var key = pair[0].toLowerCase();
      var val = pair[1];

      // get the value, unwrapping quotes
      var value = val && val[0] === '"' && val[val.length - 1] === '"'
        ? val.substr(1, val.length - 2)
        : val;

      if (key === 'q') {
        q = parseFloat(value);
        break;
      }

      // store parameter
      params[key] = value;
    }
  }

  return {
    type: type,
    subtype: subtype,
    params: params,
    q: q,
    i: i
  };
}

/**
 * Get the priority of a media type.
 * @private
 */

function getMediaTypePriority(type, accepted, index) {
  var priority = {o: -1, q: 0, s: 0};

  for (var i = 0; i < accepted.length; i++) {
    var spec = specify(type, accepted[i], index);

    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
      priority = spec;
    }
  }

  return priority;
}

/**
 * Get the specificity of the media type.
 * @private
 */

function specify(type, spec, index) {
  var p = parseMediaType(type);
  var s = 0;

  if (!p) {
    return null;
  }

  if(spec.type.toLowerCase() == p.type.toLowerCase()) {
    s |= 4;
  } else if(spec.type != '*') {
    return null;
  }

  if(spec.subtype.toLowerCase() == p.subtype.toLowerCase()) {
    s |= 2;
  } else if(spec.subtype != '*') {
    return null;
  }

  var keys = Object.keys(spec.params);
  if (keys.length > 0) {
    if (keys.every(function (k) {
      return spec.params[k] == '*' || (spec.params[k] || '').toLowerCase() == (p.params[k] || '').toLowerCase();
    })) {
      s |= 1;
    } else {
      return null
    }
  }

  return {
    i: index,
    o: spec.i,
    q: spec.q,
    s: s,
  }
}

/**
 * Get the preferred media types from an Accept header.
 * @public
 */

function preferredMediaTypes(accept, provided) {
  // RFC 2616 sec 14.2: no header = */*
  var accepts = parseAccept(accept === undefined ? '*/*' : accept || '');

  if (!provided) {
    // sorted list of all types
    return accepts
      .filter(isQuality)
      .sort(compareSpecs)
      .map(getFullType);
  }

  var priorities = provided.map(function getPriority(type, index) {
    return getMediaTypePriority(type, accepts, index);
  });

  // sorted list of accepted types
  return priorities.filter(isQuality).sort(compareSpecs).map(function getType(priority) {
    return provided[priorities.indexOf(priority)];
  });
}

/**
 * Compare two specs.
 * @private
 */

function compareSpecs(a, b) {
  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
}

/**
 * Get full type string.
 * @private
 */

function getFullType(spec) {
  return spec.type + '/' + spec.subtype;
}

/**
 * Check if a spec has any quality.
 * @private
 */

function isQuality(spec) {
  return spec.q > 0;
}

/**
 * Count the number of quotes in a string.
 * @private
 */

function quoteCount(string) {
  var count = 0;
  var index = 0;

  while ((index = string.indexOf('"', index)) !== -1) {
    count++;
    index++;
  }

  return count;
}

/**
 * Split a key value pair.
 * @private
 */

function splitKeyValuePair(str) {
  var index = str.indexOf('=');
  var key;
  var val;

  if (index === -1) {
    key = str;
  } else {
    key = str.substr(0, index);
    val = str.substr(index + 1);
  }

  return [key, val];
}

/**
 * Split an Accept header into media types.
 * @private
 */

function splitMediaTypes(accept) {
  var accepts = accept.split(',');

  for (var i = 1, j = 0; i < accepts.length; i++) {
    if (quoteCount(accepts[j]) % 2 == 0) {
      accepts[++j] = accepts[i];
    } else {
      accepts[j] += ',' + accepts[i];
    }
  }

  // trim accepts
  accepts.length = j + 1;

  return accepts;
}

/**
 * Split a string of parameters.
 * @private
 */

function splitParameters(str) {
  var parameters = str.split(';');

  for (var i = 1, j = 0; i < parameters.length; i++) {
    if (quoteCount(parameters[j]) % 2 == 0) {
      parameters[++j] = parameters[i];
    } else {
      parameters[j] += ';' + parameters[i];
    }
  }

  // trim parameters
  parameters.length = j + 1;

  for (var i = 0; i < parameters.length; i++) {
    parameters[i] = parameters[i].trim();
  }

  return parameters;
}

/*!
 * negotiator
 * Copyright(c) 2012 Federico Romero
 * Copyright(c) 2012-2014 Isaac Z. Schlueter
 * Copyright(c) 2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Cached loaded submodules.
 * @private
 */

var modules = Object.create(null);

/**
 * Module exports.
 * @public
 */

negotiator.exports = Negotiator$1;
negotiator.exports.Negotiator = Negotiator$1;

/**
 * Create a Negotiator instance from a request.
 * @param {object} request
 * @public
 */

function Negotiator$1(request) {
  if (!(this instanceof Negotiator$1)) {
    return new Negotiator$1(request);
  }

  this.request = request;
}

Negotiator$1.prototype.charset = function charset(available) {
  var set = this.charsets(available);
  return set && set[0];
};

Negotiator$1.prototype.charsets = function charsets(available) {
  var preferredCharsets = loadModule('charset').preferredCharsets;
  return preferredCharsets(this.request.headers['accept-charset'], available);
};

Negotiator$1.prototype.encoding = function encoding(available) {
  var set = this.encodings(available);
  return set && set[0];
};

Negotiator$1.prototype.encodings = function encodings(available) {
  var preferredEncodings = loadModule('encoding').preferredEncodings;
  return preferredEncodings(this.request.headers['accept-encoding'], available);
};

Negotiator$1.prototype.language = function language(available) {
  var set = this.languages(available);
  return set && set[0];
};

Negotiator$1.prototype.languages = function languages(available) {
  var preferredLanguages = loadModule('language').preferredLanguages;
  return preferredLanguages(this.request.headers['accept-language'], available);
};

Negotiator$1.prototype.mediaType = function mediaType(available) {
  var set = this.mediaTypes(available);
  return set && set[0];
};

Negotiator$1.prototype.mediaTypes = function mediaTypes(available) {
  var preferredMediaTypes = loadModule('mediaType').preferredMediaTypes;
  return preferredMediaTypes(this.request.headers.accept, available);
};

// Backwards compatibility
Negotiator$1.prototype.preferredCharset = Negotiator$1.prototype.charset;
Negotiator$1.prototype.preferredCharsets = Negotiator$1.prototype.charsets;
Negotiator$1.prototype.preferredEncoding = Negotiator$1.prototype.encoding;
Negotiator$1.prototype.preferredEncodings = Negotiator$1.prototype.encodings;
Negotiator$1.prototype.preferredLanguage = Negotiator$1.prototype.language;
Negotiator$1.prototype.preferredLanguages = Negotiator$1.prototype.languages;
Negotiator$1.prototype.preferredMediaType = Negotiator$1.prototype.mediaType;
Negotiator$1.prototype.preferredMediaTypes = Negotiator$1.prototype.mediaTypes;

/**
 * Load the given module.
 * @private
 */

function loadModule(moduleName) {
  var module = modules[moduleName];

  if (module !== undefined) {
    return module;
  }

  // This uses a switch for static require analysis
  switch (moduleName) {
    case 'charset':
      module = charset.exports;
      break;
    case 'encoding':
      module = encoding.exports;
      break;
    case 'language':
      module = language.exports;
      break;
    case 'mediaType':
      module = mediaType.exports;
      break;
    default:
      throw new Error('Cannot find module \'' + moduleName + '\'');
  }

  // Store to prevent invoking require()
  modules[moduleName] = module;

  return module;
}

var mimeTypes = {};

var require$$0$1 = {
	"application/1d-interleaved-parityfec": {
	source: "iana"
},
	"application/3gpdash-qoe-report+xml": {
	source: "iana",
	charset: "UTF-8",
	compressible: true
},
	"application/3gpp-ims+xml": {
	source: "iana",
	compressible: true
},
	"application/3gpphal+json": {
	source: "iana",
	compressible: true
},
	"application/3gpphalforms+json": {
	source: "iana",
	compressible: true
},
	"application/a2l": {
	source: "iana"
},
	"application/activemessage": {
	source: "iana"
},
	"application/activity+json": {
	source: "iana",
	compressible: true
},
	"application/alto-costmap+json": {
	source: "iana",
	compressible: true
},
	"application/alto-costmapfilter+json": {
	source: "iana",
	compressible: true
},
	"application/alto-directory+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointcost+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointcostparams+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointprop+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointpropparams+json": {
	source: "iana",
	compressible: true
},
	"application/alto-error+json": {
	source: "iana",
	compressible: true
},
	"application/alto-networkmap+json": {
	source: "iana",
	compressible: true
},
	"application/alto-networkmapfilter+json": {
	source: "iana",
	compressible: true
},
	"application/alto-updatestreamcontrol+json": {
	source: "iana",
	compressible: true
},
	"application/alto-updatestreamparams+json": {
	source: "iana",
	compressible: true
},
	"application/aml": {
	source: "iana"
},
	"application/andrew-inset": {
	source: "iana",
	extensions: [
		"ez"
	]
},
	"application/applefile": {
	source: "iana"
},
	"application/applixware": {
	source: "apache",
	extensions: [
		"aw"
	]
},
	"application/atf": {
	source: "iana"
},
	"application/atfx": {
	source: "iana"
},
	"application/atom+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"atom"
	]
},
	"application/atomcat+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"atomcat"
	]
},
	"application/atomdeleted+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"atomdeleted"
	]
},
	"application/atomicmail": {
	source: "iana"
},
	"application/atomsvc+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"atomsvc"
	]
},
	"application/atsc-dwd+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"dwd"
	]
},
	"application/atsc-dynamic-event-message": {
	source: "iana"
},
	"application/atsc-held+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"held"
	]
},
	"application/atsc-rdt+json": {
	source: "iana",
	compressible: true
},
	"application/atsc-rsat+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"rsat"
	]
},
	"application/atxml": {
	source: "iana"
},
	"application/auth-policy+xml": {
	source: "iana",
	compressible: true
},
	"application/bacnet-xdd+zip": {
	source: "iana",
	compressible: false
},
	"application/batch-smtp": {
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		"html",
		"htm",
		"shtml"
	]
},
	"text/jade": {
	extensions: [
		"jade"
	]
},
	"text/javascript": {
	source: "iana",
	compressible: true
},
	"text/jcr-cnd": {
	source: "iana"
},
	"text/jsx": {
	compressible: true,
	extensions: [
		"jsx"
	]
},
	"text/less": {
	compressible: true,
	extensions: [
		"less"
	]
},
	"text/markdown": {
	source: "iana",
	compressible: true,
	extensions: [
		"markdown",
		"md"
	]
},
	"text/mathml": {
	source: "nginx",
	extensions: [
		"mml"
	]
},
	"text/mdx": {
	compressible: true,
	extensions: [
		"mdx"
	]
},
	"text/mizar": {
	source: "iana"
},
	"text/n3": {
	source: "iana",
	charset: "UTF-8",
	compressible: true,
	extensions: [
		"n3"
	]
},
	"text/parameters": {
	source: "iana",
	charset: "UTF-8"
},
	"text/parityfec": {
	source: "iana"
},
	"text/plain": {
	source: "iana",
	compressible: true,
	extensions: [
		"txt",
		"text",
		"conf",
		"def",
		"list",
		"log",
		"in",
		"ini"
	]
},
	"text/provenance-notation": {
	source: "iana",
	charset: "UTF-8"
},
	"text/prs.fallenstein.rst": {
	source: "iana"
},
	"text/prs.lines.tag": {
	source: "iana",
	extensions: [
		"dsc"
	]
},
	"text/prs.prop.logic": {
	source: "iana"
},
	"text/raptorfec": {
	source: "iana"
},
	"text/red": {
	source: "iana"
},
	"text/rfc822-headers": {
	source: "iana"
},
	"text/richtext": {
	source: "iana",
	compressible: true,
	extensions: [
		"rtx"
	]
},
	"text/rtf": {
	source: "iana",
	compressible: true,
	extensions: [
		"rtf"
	]
},
	"text/rtp-enc-aescm128": {
	source: "iana"
},
	"text/rtploopback": {
	source: "iana"
},
	"text/rtx": {
	source: "iana"
},
	"text/sgml": {
	source: "iana",
	extensions: [
		"sgml",
		"sgm"
	]
},
	"text/shaclc": {
	source: "iana"
},
	"text/shex": {
	source: "iana",
	extensions: [
		"shex"
	]
},
	"text/slim": {
	extensions: [
		"slim",
		"slm"
	]
},
	"text/spdx": {
	source: "iana",
	extensions: [
		"spdx"
	]
},
	"text/strings": {
	source: "iana"
},
	"text/stylus": {
	extensions: [
		"stylus",
		"styl"
	]
},
	"text/t140": {
	source: "iana"
},
	"text/tab-separated-values": {
	source: "iana",
	compressible: true,
	extensions: [
		"tsv"
	]
},
	"text/troff": {
	source: "iana",
	extensions: [
		"t",
		"tr",
		"roff",
		"man",
		"me",
		"ms"
	]
},
	"text/turtle": {
	source: "iana",
	charset: "UTF-8",
	extensions: [
		"ttl"
	]
},
	"text/ulpfec": {
	source: "iana"
},
	"text/uri-list": {
	source: "iana",
	compressible: true,
	extensions: [
		"uri",
		"uris",
		"urls"
	]
},
	"text/vcard": {
	source: "iana",
	compressible: true,
	extensions: [
		"vcard"
	]
},
	"text/vnd.a": {
	source: "iana"
},
	"text/vnd.abc": {
	source: "iana"
},
	"text/vnd.ascii-art": {
	source: "iana"
},
	"text/vnd.curl": {
	source: "iana",
	extensions: [
		"curl"
	]
},
	"text/vnd.curl.dcurl": {
	source: "apache",
	extensions: [
		"dcurl"
	]
},
	"text/vnd.curl.mcurl": {
	source: "apache",
	extensions: [
		"mcurl"
	]
},
	"text/vnd.curl.scurl": {
	source: "apache",
	extensions: [
		"scurl"
	]
},
	"text/vnd.debian.copyright": {
	source: "iana",
	charset: "UTF-8"
},
	"text/vnd.dmclientscript": {
	source: "iana"
},
	"text/vnd.dvb.subtitle": {
	source: "iana",
	extensions: [
		"sub"
	]
},
	"text/vnd.esmertec.theme-descriptor": {
	source: "iana",
	charset: "UTF-8"
},
	"text/vnd.ficlab.flt": {
	source: "iana"
},
	"text/vnd.fly": {
	source: "iana",
	extensions: [
		"fly"
	]
},
	"text/vnd.fmi.flexstor": {
	source: "iana",
	extensions: [
		"flx"
	]
},
	"text/vnd.gml": {
	source: "iana"
},
	"text/vnd.graphviz": {
	source: "iana",
	extensions: [
		"gv"
	]
},
	"text/vnd.hans": {
	source: "iana"
},
	"text/vnd.hgl": {
	source: "iana"
},
	"text/vnd.in3d.3dml": {
	source: "iana",
	extensions: [
		"3dml"
	]
},
	"text/vnd.in3d.spot": {
	source: "iana",
	extensions: [
		"spot"
	]
},
	"text/vnd.iptc.newsml": {
	source: "iana"
},
	"text/vnd.iptc.nitf": {
	source: "iana"
},
	"text/vnd.latex-z": {
	source: "iana"
},
	"text/vnd.motorola.reflex": {
	source: "iana"
},
	"text/vnd.ms-mediapackage": {
	source: "iana"
},
	"text/vnd.net2phone.commcenter.command": {
	source: "iana"
},
	"text/vnd.radisys.msml-basic-layout": {
	source: "iana"
},
	"text/vnd.senx.warpscript": {
	source: "iana"
},
	"text/vnd.si.uricatalogue": {
	source: "iana"
},
	"text/vnd.sosi": {
	source: "iana"
},
	"text/vnd.sun.j2me.app-descriptor": {
	source: "iana",
	charset: "UTF-8",
	extensions: [
		"jad"
	]
},
	"text/vnd.trolltech.linguist": {
	source: "iana",
	charset: "UTF-8"
},
	"text/vnd.wap.si": {
	source: "iana"
},
	"text/vnd.wap.sl": {
	source: "iana"
},
	"text/vnd.wap.wml": {
	source: "iana",
	extensions: [
		"wml"
	]
},
	"text/vnd.wap.wmlscript": {
	source: "iana",
	extensions: [
		"wmls"
	]
},
	"text/vtt": {
	source: "iana",
	charset: "UTF-8",
	compressible: true,
	extensions: [
		"vtt"
	]
},
	"text/x-asm": {
	source: "apache",
	extensions: [
		"s",
		"asm"
	]
},
	"text/x-c": {
	source: "apache",
	extensions: [
		"c",
		"cc",
		"cxx",
		"cpp",
		"h",
		"hh",
		"dic"
	]
},
	"text/x-component": {
	source: "nginx",
	extensions: [
		"htc"
	]
},
	"text/x-fortran": {
	source: "apache",
	extensions: [
		"f",
		"for",
		"f77",
		"f90"
	]
},
	"text/x-gwt-rpc": {
	compressible: true
},
	"text/x-handlebars-template": {
	extensions: [
		"hbs"
	]
},
	"text/x-java-source": {
	source: "apache",
	extensions: [
		"java"
	]
},
	"text/x-jquery-tmpl": {
	compressible: true
},
	"text/x-lua": {
	extensions: [
		"lua"
	]
},
	"text/x-markdown": {
	compressible: true,
	extensions: [
		"mkd"
	]
},
	"text/x-nfo": {
	source: "apache",
	extensions: [
		"nfo"
	]
},
	"text/x-opml": {
	source: "apache",
	extensions: [
		"opml"
	]
},
	"text/x-org": {
	compressible: true,
	extensions: [
		"org"
	]
},
	"text/x-pascal": {
	source: "apache",
	extensions: [
		"p",
		"pas"
	]
},
	"text/x-processing": {
	compressible: true,
	extensions: [
		"pde"
	]
},
	"text/x-sass": {
	extensions: [
		"sass"
	]
},
	"text/x-scss": {
	extensions: [
		"scss"
	]
},
	"text/x-setext": {
	source: "apache",
	extensions: [
		"etx"
	]
},
	"text/x-sfv": {
	source: "apache",
	extensions: [
		"sfv"
	]
},
	"text/x-suse-ymp": {
	compressible: true,
	extensions: [
		"ymp"
	]
},
	"text/x-uuencode": {
	source: "apache",
	extensions: [
		"uu"
	]
},
	"text/x-vcalendar": {
	source: "apache",
	extensions: [
		"vcs"
	]
},
	"text/x-vcard": {
	source: "apache",
	extensions: [
		"vcf"
	]
},
	"text/xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"xml"
	]
},
	"text/xml-external-parsed-entity": {
	source: "iana"
},
	"text/yaml": {
	compressible: true,
	extensions: [
		"yaml",
		"yml"
	]
},
	"video/1d-interleaved-parityfec": {
	source: "iana"
},
	"video/3gpp": {
	source: "iana",
	extensions: [
		"3gp",
		"3gpp"
	]
},
	"video/3gpp-tt": {
	source: "iana"
},
	"video/3gpp2": {
	source: "iana",
	extensions: [
		"3g2"
	]
},
	"video/av1": {
	source: "iana"
},
	"video/bmpeg": {
	source: "iana"
},
	"video/bt656": {
	source: "iana"
},
	"video/celb": {
	source: "iana"
},
	"video/dv": {
	source: "iana"
},
	"video/encaprtp": {
	source: "iana"
},
	"video/ffv1": {
	source: "iana"
},
	"video/flexfec": {
	source: "iana"
},
	"video/h261": {
	source: "iana",
	extensions: [
		"h261"
	]
},
	"video/h263": {
	source: "iana",
	extensions: [
		"h263"
	]
},
	"video/h263-1998": {
	source: "iana"
},
	"video/h263-2000": {
	source: "iana"
},
	"video/h264": {
	source: "iana",
	extensions: [
		"h264"
	]
},
	"video/h264-rcdo": {
	source: "iana"
},
	"video/h264-svc": {
	source: "iana"
},
	"video/h265": {
	source: "iana"
},
	"video/iso.segment": {
	source: "iana",
	extensions: [
		"m4s"
	]
},
	"video/jpeg": {
	source: "iana",
	extensions: [
		"jpgv"
	]
},
	"video/jpeg2000": {
	source: "iana"
},
	"video/jpm": {
	source: "apache",
	extensions: [
		"jpm",
		"jpgm"
	]
},
	"video/mj2": {
	source: "iana",
	extensions: [
		"mj2",
		"mjp2"
	]
},
	"video/mp1s": {
	source: "iana"
},
	"video/mp2p": {
	source: "iana"
},
	"video/mp2t": {
	source: "iana",
	extensions: [
		"ts"
	]
},
	"video/mp4": {
	source: "iana",
	compressible: false,
	extensions: [
		"mp4",
		"mp4v",
		"mpg4"
	]
},
	"video/mp4v-es": {
	source: "iana"
},
	"video/mpeg": {
	source: "iana",
	compressible: false,
	extensions: [
		"mpeg",
		"mpg",
		"mpe",
		"m1v",
		"m2v"
	]
},
	"video/mpeg4-generic": {
	source: "iana"
},
	"video/mpv": {
	source: "iana"
},
	"video/nv": {
	source: "iana"
},
	"video/ogg": {
	source: "iana",
	compressible: false,
	extensions: [
		"ogv"
	]
},
	"video/parityfec": {
	source: "iana"
},
	"video/pointer": {
	source: "iana"
},
	"video/quicktime": {
	source: "iana",
	compressible: false,
	extensions: [
		"qt",
		"mov"
	]
},
	"video/raptorfec": {
	source: "iana"
},
	"video/raw": {
	source: "iana"
},
	"video/rtp-enc-aescm128": {
	source: "iana"
},
	"video/rtploopback": {
	source: "iana"
},
	"video/rtx": {
	source: "iana"
},
	"video/scip": {
	source: "iana"
},
	"video/smpte291": {
	source: "iana"
},
	"video/smpte292m": {
	source: "iana"
},
	"video/ulpfec": {
	source: "iana"
},
	"video/vc1": {
	source: "iana"
},
	"video/vc2": {
	source: "iana"
},
	"video/vnd.cctv": {
	source: "iana"
},
	"video/vnd.dece.hd": {
	source: "iana",
	extensions: [
		"uvh",
		"uvvh"
	]
},
	"video/vnd.dece.mobile": {
	source: "iana",
	extensions: [
		"uvm",
		"uvvm"
	]
},
	"video/vnd.dece.mp4": {
	source: "iana"
},
	"video/vnd.dece.pd": {
	source: "iana",
	extensions: [
		"uvp",
		"uvvp"
	]
},
	"video/vnd.dece.sd": {
	source: "iana",
	extensions: [
		"uvs",
		"uvvs"
	]
},
	"video/vnd.dece.video": {
	source: "iana",
	extensions: [
		"uvv",
		"uvvv"
	]
},
	"video/vnd.directv.mpeg": {
	source: "iana"
},
	"video/vnd.directv.mpeg-tts": {
	source: "iana"
},
	"video/vnd.dlna.mpeg-tts": {
	source: "iana"
},
	"video/vnd.dvb.file": {
	source: "iana",
	extensions: [
		"dvb"
	]
},
	"video/vnd.fvt": {
	source: "iana",
	extensions: [
		"fvt"
	]
},
	"video/vnd.hns.video": {
	source: "iana"
},
	"video/vnd.iptvforum.1dparityfec-1010": {
	source: "iana"
},
	"video/vnd.iptvforum.1dparityfec-2005": {
	source: "iana"
},
	"video/vnd.iptvforum.2dparityfec-1010": {
	source: "iana"
},
	"video/vnd.iptvforum.2dparityfec-2005": {
	source: "iana"
},
	"video/vnd.iptvforum.ttsavc": {
	source: "iana"
},
	"video/vnd.iptvforum.ttsmpeg2": {
	source: "iana"
},
	"video/vnd.motorola.video": {
	source: "iana"
},
	"video/vnd.motorola.videop": {
	source: "iana"
},
	"video/vnd.mpegurl": {
	source: "iana",
	extensions: [
		"mxu",
		"m4u"
	]
},
	"video/vnd.ms-playready.media.pyv": {
	source: "iana",
	extensions: [
		"pyv"
	]
},
	"video/vnd.nokia.interleaved-multimedia": {
	source: "iana"
},
	"video/vnd.nokia.mp4vr": {
	source: "iana"
},
	"video/vnd.nokia.videovoip": {
	source: "iana"
},
	"video/vnd.objectvideo": {
	source: "iana"
},
	"video/vnd.radgamettools.bink": {
	source: "iana"
},
	"video/vnd.radgamettools.smacker": {
	source: "iana"
},
	"video/vnd.sealed.mpeg1": {
	source: "iana"
},
	"video/vnd.sealed.mpeg4": {
	source: "iana"
},
	"video/vnd.sealed.swf": {
	source: "iana"
},
	"video/vnd.sealedmedia.softseal.mov": {
	source: "iana"
},
	"video/vnd.uvvu.mp4": {
	source: "iana",
	extensions: [
		"uvu",
		"uvvu"
	]
},
	"video/vnd.vivo": {
	source: "iana",
	extensions: [
		"viv"
	]
},
	"video/vnd.youtube.yt": {
	source: "iana"
},
	"video/vp8": {
	source: "iana"
},
	"video/vp9": {
	source: "iana"
},
	"video/webm": {
	source: "apache",
	compressible: false,
	extensions: [
		"webm"
	]
},
	"video/x-f4v": {
	source: "apache",
	extensions: [
		"f4v"
	]
},
	"video/x-fli": {
	source: "apache",
	extensions: [
		"fli"
	]
},
	"video/x-flv": {
	source: "apache",
	compressible: false,
	extensions: [
		"flv"
	]
},
	"video/x-m4v": {
	source: "apache",
	extensions: [
		"m4v"
	]
},
	"video/x-matroska": {
	source: "apache",
	compressible: false,
	extensions: [
		"mkv",
		"mk3d",
		"mks"
	]
},
	"video/x-mng": {
	source: "apache",
	extensions: [
		"mng"
	]
},
	"video/x-ms-asf": {
	source: "apache",
	extensions: [
		"asf",
		"asx"
	]
},
	"video/x-ms-vob": {
	source: "apache",
	extensions: [
		"vob"
	]
},
	"video/x-ms-wm": {
	source: "apache",
	extensions: [
		"wm"
	]
},
	"video/x-ms-wmv": {
	source: "apache",
	compressible: false,
	extensions: [
		"wmv"
	]
},
	"video/x-ms-wmx": {
	source: "apache",
	extensions: [
		"wmx"
	]
},
	"video/x-ms-wvx": {
	source: "apache",
	extensions: [
		"wvx"
	]
},
	"video/x-msvideo": {
	source: "apache",
	extensions: [
		"avi"
	]
},
	"video/x-sgi-movie": {
	source: "apache",
	extensions: [
		"movie"
	]
},
	"video/x-smv": {
	source: "apache",
	extensions: [
		"smv"
	]
},
	"x-conference/x-cooltalk": {
	source: "apache",
	extensions: [
		"ice"
	]
},
	"x-shader/x-fragment": {
	compressible: true
},
	"x-shader/x-vertex": {
	compressible: true
}
};

/*!
 * mime-db
 * Copyright(c) 2014 Jonathan Ong
 * MIT Licensed
 */

/**
 * Module exports.
 */

var mimeDb$1 = require$$0$1;

/*!
 * mime-types
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2015 Douglas Christopher Wilson
 * MIT Licensed
 */

(function (exports) {

/**
 * Module dependencies.
 * @private
 */

var db = mimeDb$1;
var extname = path__default.extname;

/**
 * Module variables.
 * @private
 */

var EXTRACT_TYPE_REGEXP = /^\s*([^;\s]*)(?:;|\s|$)/;
var TEXT_TYPE_REGEXP = /^text\//i;

/**
 * Module exports.
 * @public
 */

exports.charset = charset;
exports.charsets = { lookup: charset };
exports.contentType = contentType;
exports.extension = extension;
exports.extensions = Object.create(null);
exports.lookup = lookup;
exports.types = Object.create(null);

// Populate the extensions/types maps
populateMaps(exports.extensions, exports.types);

/**
 * Get the default charset for a MIME type.
 *
 * @param {string} type
 * @return {boolean|string}
 */

function charset (type) {
  if (!type || typeof type !== 'string') {
    return false
  }

  // TODO: use media-typer
  var match = EXTRACT_TYPE_REGEXP.exec(type);
  var mime = match && db[match[1].toLowerCase()];

  if (mime && mime.charset) {
    return mime.charset
  }

  // default text/* to utf-8
  if (match && TEXT_TYPE_REGEXP.test(match[1])) {
    return 'UTF-8'
  }

  return false
}

/**
 * Create a full Content-Type header given a MIME type or extension.
 *
 * @param {string} str
 * @return {boolean|string}
 */

function contentType (str) {
  // TODO: should this even be in this module?
  if (!str || typeof str !== 'string') {
    return false
  }

  var mime = str.indexOf('/') === -1
    ? exports.lookup(str)
    : str;

  if (!mime) {
    return false
  }

  // TODO: use content-type or other module
  if (mime.indexOf('charset') === -1) {
    var charset = exports.charset(mime);
    if (charset) mime += '; charset=' + charset.toLowerCase();
  }

  return mime
}

/**
 * Get the default extension for a MIME type.
 *
 * @param {string} type
 * @return {boolean|string}
 */

function extension (type) {
  if (!type || typeof type !== 'string') {
    return false
  }

  // TODO: use media-typer
  var match = EXTRACT_TYPE_REGEXP.exec(type);

  // get extensions
  var exts = match && exports.extensions[match[1].toLowerCase()];

  if (!exts || !exts.length) {
    return false
  }

  return exts[0]
}

/**
 * Lookup the MIME type for a file path/extension.
 *
 * @param {string} path
 * @return {boolean|string}
 */

function lookup (path) {
  if (!path || typeof path !== 'string') {
    return false
  }

  // get the extension ("ext" or ".ext" or full path)
  var extension = extname('x.' + path)
    .toLowerCase()
    .substr(1);

  if (!extension) {
    return false
  }

  return exports.types[extension] || false
}

/**
 * Populate the extensions and types maps.
 * @private
 */

function populateMaps (extensions, types) {
  // source preference (least -> most)
  var preference = ['nginx', 'apache', undefined, 'iana'];

  Object.keys(db).forEach(function forEachMimeType (type) {
    var mime = db[type];
    var exts = mime.extensions;

    if (!exts || !exts.length) {
      return
    }

    // mime -> extensions
    extensions[type] = exts;

    // extension -> mime
    for (var i = 0; i < exts.length; i++) {
      var extension = exts[i];

      if (types[extension]) {
        var from = preference.indexOf(db[types[extension]].source);
        var to = preference.indexOf(mime.source);

        if (types[extension] !== 'application/octet-stream' &&
          (from > to || (from === to && types[extension].substr(0, 12) === 'application/'))) {
          // skip the remapping
          continue
        }
      }

      // set the extension -> mime
      types[extension] = type;
    }
  });
}
}(mimeTypes));

/*!
 * accepts
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module dependencies.
 * @private
 */

var Negotiator = negotiator.exports;
var mime = mimeTypes;

/**
 * Module exports.
 * @public
 */

var accepts$1 = Accepts;

/**
 * Create a new Accepts object for the given req.
 *
 * @param {object} req
 * @public
 */

function Accepts (req) {
  if (!(this instanceof Accepts)) {
    return new Accepts(req)
  }

  this.headers = req.headers;
  this.negotiator = new Negotiator(req);
}

/**
 * Check if the given `type(s)` is acceptable, returning
 * the best match when true, otherwise `undefined`, in which
 * case you should respond with 406 "Not Acceptable".
 *
 * The `type` value may be a single mime type string
 * such as "application/json", the extension name
 * such as "json" or an array `["json", "html", "text/plain"]`. When a list
 * or array is given the _best_ match, if any is returned.
 *
 * Examples:
 *
 *     // Accept: text/html
 *     this.types('html');
 *     // => "html"
 *
 *     // Accept: text/*, application/json
 *     this.types('html');
 *     // => "html"
 *     this.types('text/html');
 *     // => "text/html"
 *     this.types('json', 'text');
 *     // => "json"
 *     this.types('application/json');
 *     // => "application/json"
 *
 *     // Accept: text/*, application/json
 *     this.types('image/png');
 *     this.types('png');
 *     // => undefined
 *
 *     // Accept: text/*;q=.5, application/json
 *     this.types(['html', 'json']);
 *     this.types('html', 'json');
 *     // => "json"
 *
 * @param {String|Array} types...
 * @return {String|Array|Boolean}
 * @public
 */

Accepts.prototype.type =
Accepts.prototype.types = function (types_) {
  var types = types_;

  // support flattened arguments
  if (types && !Array.isArray(types)) {
    types = new Array(arguments.length);
    for (var i = 0; i < types.length; i++) {
      types[i] = arguments[i];
    }
  }

  // no types, return all requested types
  if (!types || types.length === 0) {
    return this.negotiator.mediaTypes()
  }

  // no accept header, return first given type
  if (!this.headers.accept) {
    return types[0]
  }

  var mimes = types.map(extToMime);
  var accepts = this.negotiator.mediaTypes(mimes.filter(validMime));
  var first = accepts[0];

  return first
    ? types[mimes.indexOf(first)]
    : false
};

/**
 * Return accepted encodings or best fit based on `encodings`.
 *
 * Given `Accept-Encoding: gzip, deflate`
 * an array sorted by quality is returned:
 *
 *     ['gzip', 'deflate']
 *
 * @param {String|Array} encodings...
 * @return {String|Array}
 * @public
 */

Accepts.prototype.encoding =
Accepts.prototype.encodings = function (encodings_) {
  var encodings = encodings_;

  // support flattened arguments
  if (encodings && !Array.isArray(encodings)) {
    encodings = new Array(arguments.length);
    for (var i = 0; i < encodings.length; i++) {
      encodings[i] = arguments[i];
    }
  }

  // no encodings, return all requested encodings
  if (!encodings || encodings.length === 0) {
    return this.negotiator.encodings()
  }

  return this.negotiator.encodings(encodings)[0] || false
};

/**
 * Return accepted charsets or best fit based on `charsets`.
 *
 * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
 * an array sorted by quality is returned:
 *
 *     ['utf-8', 'utf-7', 'iso-8859-1']
 *
 * @param {String|Array} charsets...
 * @return {String|Array}
 * @public
 */

Accepts.prototype.charset =
Accepts.prototype.charsets = function (charsets_) {
  var charsets = charsets_;

  // support flattened arguments
  if (charsets && !Array.isArray(charsets)) {
    charsets = new Array(arguments.length);
    for (var i = 0; i < charsets.length; i++) {
      charsets[i] = arguments[i];
    }
  }

  // no charsets, return all requested charsets
  if (!charsets || charsets.length === 0) {
    return this.negotiator.charsets()
  }

  return this.negotiator.charsets(charsets)[0] || false
};

/**
 * Return accepted languages or best fit based on `langs`.
 *
 * Given `Accept-Language: en;q=0.8, es, pt`
 * an array sorted by quality is returned:
 *
 *     ['es', 'pt', 'en']
 *
 * @param {String|Array} langs...
 * @return {Array|String}
 * @public
 */

Accepts.prototype.lang =
Accepts.prototype.langs =
Accepts.prototype.language =
Accepts.prototype.languages = function (languages_) {
  var languages = languages_;

  // support flattened arguments
  if (languages && !Array.isArray(languages)) {
    languages = new Array(arguments.length);
    for (var i = 0; i < languages.length; i++) {
      languages[i] = arguments[i];
    }
  }

  // no languages, return all requested languages
  if (!languages || languages.length === 0) {
    return this.negotiator.languages()
  }

  return this.negotiator.languages(languages)[0] || false
};

/**
 * Convert extnames to mime.
 *
 * @param {String} type
 * @return {String}
 * @private
 */

function extToMime (type) {
  return type.indexOf('/') === -1
    ? mime.lookup(type)
    : type
}

/**
 * Check if mime is valid.
 *
 * @param {String} type
 * @return {String}
 * @private
 */

function validMime (type) {
  return typeof type === 'string'
}

var bytes$2 = {exports: {}};

/*!
 * bytes
 * Copyright(c) 2012-2014 TJ Holowaychuk
 * Copyright(c) 2015 Jed Watson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

bytes$2.exports = bytes$1;
bytes$2.exports.format = format;
bytes$2.exports.parse = parse;

/**
 * Module variables.
 * @private
 */

var formatThousandsRegExp = /\B(?=(\d{3})+(?!\d))/g;

var formatDecimalsRegExp = /(?:\.0*|(\.[^0]+)0+)$/;

var map = {
  b:  1,
  kb: 1 << 10,
  mb: 1 << 20,
  gb: 1 << 30,
  tb: ((1 << 30) * 1024)
};

var parseRegExp = /^((-|\+)?(\d+(?:\.\d+)?)) *(kb|mb|gb|tb)$/i;

/**
 * Convert the given value in bytes into a string or parse to string to an integer in bytes.
 *
 * @param {string|number} value
 * @param {{
 *  case: [string],
 *  decimalPlaces: [number]
 *  fixedDecimals: [boolean]
 *  thousandsSeparator: [string]
 *  unitSeparator: [string]
 *  }} [options] bytes options.
 *
 * @returns {string|number|null}
 */

function bytes$1(value, options) {
  if (typeof value === 'string') {
    return parse(value);
  }

  if (typeof value === 'number') {
    return format(value, options);
  }

  return null;
}

/**
 * Format the given value in bytes into a string.
 *
 * If the value is negative, it is kept as such. If it is a float,
 * it is rounded.
 *
 * @param {number} value
 * @param {object} [options]
 * @param {number} [options.decimalPlaces=2]
 * @param {number} [options.fixedDecimals=false]
 * @param {string} [options.thousandsSeparator=]
 * @param {string} [options.unit=]
 * @param {string} [options.unitSeparator=]
 *
 * @returns {string|null}
 * @public
 */

function format(value, options) {
  if (!Number.isFinite(value)) {
    return null;
  }

  var mag = Math.abs(value);
  var thousandsSeparator = (options && options.thousandsSeparator) || '';
  var unitSeparator = (options && options.unitSeparator) || '';
  var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;
  var fixedDecimals = Boolean(options && options.fixedDecimals);
  var unit = (options && options.unit) || '';

  if (!unit || !map[unit.toLowerCase()]) {
    if (mag >= map.tb) {
      unit = 'TB';
    } else if (mag >= map.gb) {
      unit = 'GB';
    } else if (mag >= map.mb) {
      unit = 'MB';
    } else if (mag >= map.kb) {
      unit = 'KB';
    } else {
      unit = 'B';
    }
  }

  var val = value / map[unit.toLowerCase()];
  var str = val.toFixed(decimalPlaces);

  if (!fixedDecimals) {
    str = str.replace(formatDecimalsRegExp, '$1');
  }

  if (thousandsSeparator) {
    str = str.replace(formatThousandsRegExp, thousandsSeparator);
  }

  return str + unitSeparator + unit;
}

/**
 * Parse the string value into an integer in bytes.
 *
 * If no unit is given, it is assumed the value is in bytes.
 *
 * @param {number|string} val
 *
 * @returns {number|null}
 * @public
 */

function parse(val) {
  if (typeof val === 'number' && !isNaN(val)) {
    return val;
  }

  if (typeof val !== 'string') {
    return null;
  }

  // Test if the string passed is valid
  var results = parseRegExp.exec(val);
  var floatValue;
  var unit = 'b';

  if (!results) {
    // Nothing could be extracted from the given string
    floatValue = parseInt(val, 10);
    unit = 'b';
  } else {
    // Retrieve the value and the unit
    floatValue = parseFloat(results[1]);
    unit = results[4].toLowerCase();
  }

  return Math.floor(map[unit] * floatValue);
}

var require$$0 = {
	"application/1d-interleaved-parityfec": {
	source: "iana"
},
	"application/3gpdash-qoe-report+xml": {
	source: "iana",
	charset: "UTF-8",
	compressible: true
},
	"application/3gpp-ims+xml": {
	source: "iana",
	compressible: true
},
	"application/3gpphal+json": {
	source: "iana",
	compressible: true
},
	"application/3gpphalforms+json": {
	source: "iana",
	compressible: true
},
	"application/a2l": {
	source: "iana"
},
	"application/ace+cbor": {
	source: "iana"
},
	"application/activemessage": {
	source: "iana"
},
	"application/activity+json": {
	source: "iana",
	compressible: true
},
	"application/alto-costmap+json": {
	source: "iana",
	compressible: true
},
	"application/alto-costmapfilter+json": {
	source: "iana",
	compressible: true
},
	"application/alto-directory+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointcost+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointcostparams+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointprop+json": {
	source: "iana",
	compressible: true
},
	"application/alto-endpointpropparams+json": {
	source: "iana",
	compressible: true
},
	"application/alto-error+json": {
	source: "iana",
	compressible: true
},
	"application/alto-networkmap+json": {
	source: "iana",
	compressible: true
},
	"application/alto-networkmapfilter+json": {
	source: "iana",
	compressible: true
},
	"application/alto-updatestreamcontrol+json": {
	source: "iana",
	compressible: true
},
	"application/alto-updatestreamparams+json": {
	source: "iana",
	compressible: true
},
	"application/aml": {
	source: "iana"
},
	"application/andrew-inset": {
	source: "iana",
	extensions: [
		"ez"
	]
},
	"application/applefile": {
	source: "iana"
},
	"application/applixware": {
	source: "apache",
	extensions: [
		"aw"
	]
},
	"application/at+jwt": {
	source: "iana"
},
	"application/atf": {
	source: "iana"
},
	"application/atfx": {
	source: "iana"
},
	"application/atom+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"atom"
	]
},
	"application/atomcat+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"atomcat"
	]
},
	"application/atomdeleted+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"atomdeleted"
	]
},
	"application/atomicmail": {
	source: "iana"
},
	"application/atomsvc+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"atomsvc"
	]
},
	"application/atsc-dwd+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"dwd"
	]
},
	"application/atsc-dynamic-event-message": {
	source: "iana"
},
	"application/atsc-held+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"held"
	]
},
	"application/atsc-rdt+json": {
	source: "iana",
	compressible: true
},
	"application/atsc-rsat+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"rsat"
	]
},
	"application/atxml": {
	source: "iana"
},
	"application/auth-policy+xml": {
	source: "iana",
	compressible: true
},
	"application/bacnet-xdd+zip": {
	source: "iana",
	compressible: false
},
	"application/batch-smtp": {
	source: "iana"
},
	"application/bdoc": {
	compressible: false,
	extensions: [
		"bdoc"
	]
},
	"application/beep+xml": {
	source: "iana",
	charset: "UTF-8",
	compressible: true
},
	"application/calendar+json": {
	source: "iana",
	compressible: true
},
	"application/calendar+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"xcs"
	]
},
	"application/call-completion": {
	source: "iana"
},
	"application/cals-1840": {
	source: "iana"
},
	"application/captive+json": {
	source: "iana",
	compressible: true
},
	"application/cbor": {
	source: "iana"
},
	"application/cbor-seq": {
	source: "iana"
},
	"application/cccex": {
	source: "iana"
},
	"application/ccmp+xml": {
	source: "iana",
	compressible: true
},
	"application/ccxml+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"ccxml"
	]
},
	"application/cdfx+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"cdfx"
	]
},
	"application/cdmi-capability": {
	source: "iana",
	extensions: [
		"cdmia"
	]
},
	"application/cdmi-container": {
	source: "iana",
	extensions: [
		"cdmic"
	]
},
	"application/cdmi-domain": {
	source: "iana",
	extensions: [
		"cdmid"
	]
},
	"application/cdmi-object": {
	source: "iana",
	extensions: [
		"cdmio"
	]
},
	"application/cdmi-queue": {
	source: "iana",
	extensions: [
		"cdmiq"
	]
},
	"application/cdni": {
	source: "iana"
},
	"application/cea": {
	source: "iana"
},
	"application/cea-2018+xml": {
	source: "iana",
	compressible: true
},
	"application/cellml+xml": {
	source: "iana",
	compressible: true
},
	"application/cfw": {
	source: "iana"
},
	"application/clr": {
	source: "iana"
},
	"application/clue+xml": {
	source: "iana",
	compressible: true
},
	"application/clue_info+xml": {
	source: "iana",
	compressible: true
},
	"application/cms": {
	source: "iana"
},
	"application/cnrp+xml": {
	source: "iana",
	compressible: true
},
	"application/coap-group+json": {
	source: "iana",
	compressible: true
},
	"application/coap-payload": {
	source: "iana"
},
	"application/commonground": {
	source: "iana"
},
	"application/conference-info+xml": {
	source: "iana",
	compressible: true
},
	"application/cose": {
	source: "iana"
},
	"application/cose-key": {
	source: "iana"
},
	"application/cose-key-set": {
	source: "iana"
},
	"application/cpl+xml": {
	source: "iana",
	compressible: true
},
	"application/csrattrs": {
	source: "iana"
},
	"application/csta+xml": {
	source: "iana",
	compressible: true
},
	"application/cstadata+xml": {
	source: "iana",
	compressible: true
},
	"application/csvm+json": {
	source: "iana",
	compressible: true
},
	"application/cu-seeme": {
	source: "apache",
	extensions: [
		"cu"
	]
},
	"application/cwt": {
	source: "iana"
},
	"application/cybercash": {
	source: "iana"
},
	"application/dart": {
	compressible: true
},
	"application/dash+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"mpd"
	]
},
	"application/dashdelta": {
	source: "iana"
},
	"application/davmount+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"davmount"
	]
},
	"application/dca-rft": {
	source: "iana"
},
	"application/dcd": {
	source: "iana"
},
	"application/dec-dx": {
	source: "iana"
},
	"application/dialog-info+xml": {
	source: "iana",
	compressible: true
},
	"application/dicom": {
	source: "iana"
},
	"application/dicom+json": {
	source: "iana",
	compressible: true
},
	"application/dicom+xml": {
	source: "iana",
	compressible: true
},
	"application/dii": {
	source: "iana"
},
	"application/dit": {
	source: "iana"
},
	"application/dns": {
	source: "iana"
},
	"application/dns+json": {
	source: "iana",
	compressible: true
},
	"application/dns-message": {
	source: "iana"
},
	"application/docbook+xml": {
	source: "apache",
	compressible: true,
	extensions: [
		"dbk"
	]
},
	"application/dots+cbor": {
	source: "iana"
},
	"application/dskpp+xml": {
	source: "iana",
	compressible: true
},
	"application/dssc+der": {
	source: "iana",
	extensions: [
		"dssc"
	]
},
	"application/dssc+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"xdssc"
	]
},
	"application/dvcs": {
	source: "iana"
},
	"application/ecmascript": {
	source: "iana",
	compressible: true,
	extensions: [
		"es",
		"ecma"
	]
},
	"application/edi-consent": {
	source: "iana"
},
	"application/edi-x12": {
	source: "iana",
	compressible: false
},
	"application/edifact": {
	source: "iana",
	compressible: false
},
	"application/efi": {
	source: "iana"
},
	"application/elm+json": {
	source: "iana",
	charset: "UTF-8",
	compressible: true
},
	"application/elm+xml": {
	source: "iana",
	compressible: true
},
	"application/emergencycalldata.cap+xml": {
	source: "iana",
	charset: "UTF-8",
	compressible: true
},
	"application/emergencycalldata.comment+xml": {
	source: "iana",
	compressible: true
},
	"application/emergencycalldata.control+xml": {
	source: "iana",
	compressible: true
},
	"application/emergencycalldata.deviceinfo+xml": {
	source: "iana",
	compressible: true
},
	"application/emergencycalldata.ecall.msd": {
	source: "iana"
},
	"application/emergencycalldata.providerinfo+xml": {
	source: "iana",
	compressible: true
},
	"application/emergencycalldata.serviceinfo+xml": {
	source: "iana",
	compressible: true
},
	"application/emergencycalldata.subscriberinfo+xml": {
	source: "iana",
	compressible: true
},
	"application/emergencycalldata.veds+xml": {
	source: "iana",
	compressible: true
},
	"application/emma+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"emma"
	]
},
	"application/emotionml+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"emotionml"
	]
},
	"application/encaprtp": {
	source: "iana"
},
	"application/epp+xml": {
	source: "iana",
	compressible: true
},
	"application/epub+zip": {
	source: "iana",
	compressible: false,
	extensions: [
		"epub"
	]
},
	"application/eshop": {
	source: "iana"
},
	"application/exi": {
	source: "iana",
	extensions: [
		"exi"
	]
},
	"application/expect-ct-report+json": {
	source: "iana",
	compressible: true
},
	"application/express": {
	source: "iana",
	extensions: [
		"exp"
	]
},
	"application/fastinfoset": {
	source: "iana"
},
	"application/fastsoap": {
	source: "iana"
},
	"application/fdt+xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"fdt"
	]
},
	"application/fhir+json": {
	source: "iana",
	charset: "UTF-8",
	compressible: true
},
	"application/fhir+xml": {
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},
	"text/x-asm": {
	source: "apache",
	extensions: [
		"s",
		"asm"
	]
},
	"text/x-c": {
	source: "apache",
	extensions: [
		"c",
		"cc",
		"cxx",
		"cpp",
		"h",
		"hh",
		"dic"
	]
},
	"text/x-component": {
	source: "nginx",
	extensions: [
		"htc"
	]
},
	"text/x-fortran": {
	source: "apache",
	extensions: [
		"f",
		"for",
		"f77",
		"f90"
	]
},
	"text/x-gwt-rpc": {
	compressible: true
},
	"text/x-handlebars-template": {
	extensions: [
		"hbs"
	]
},
	"text/x-java-source": {
	source: "apache",
	extensions: [
		"java"
	]
},
	"text/x-jquery-tmpl": {
	compressible: true
},
	"text/x-lua": {
	extensions: [
		"lua"
	]
},
	"text/x-markdown": {
	compressible: true,
	extensions: [
		"mkd"
	]
},
	"text/x-nfo": {
	source: "apache",
	extensions: [
		"nfo"
	]
},
	"text/x-opml": {
	source: "apache",
	extensions: [
		"opml"
	]
},
	"text/x-org": {
	compressible: true,
	extensions: [
		"org"
	]
},
	"text/x-pascal": {
	source: "apache",
	extensions: [
		"p",
		"pas"
	]
},
	"text/x-processing": {
	compressible: true,
	extensions: [
		"pde"
	]
},
	"text/x-sass": {
	extensions: [
		"sass"
	]
},
	"text/x-scss": {
	extensions: [
		"scss"
	]
},
	"text/x-setext": {
	source: "apache",
	extensions: [
		"etx"
	]
},
	"text/x-sfv": {
	source: "apache",
	extensions: [
		"sfv"
	]
},
	"text/x-suse-ymp": {
	compressible: true,
	extensions: [
		"ymp"
	]
},
	"text/x-uuencode": {
	source: "apache",
	extensions: [
		"uu"
	]
},
	"text/x-vcalendar": {
	source: "apache",
	extensions: [
		"vcs"
	]
},
	"text/x-vcard": {
	source: "apache",
	extensions: [
		"vcf"
	]
},
	"text/xml": {
	source: "iana",
	compressible: true,
	extensions: [
		"xml"
	]
},
	"text/xml-external-parsed-entity": {
	source: "iana"
},
	"text/yaml": {
	compressible: true,
	extensions: [
		"yaml",
		"yml"
	]
},
	"video/1d-interleaved-parityfec": {
	source: "iana"
},
	"video/3gpp": {
	source: "iana",
	extensions: [
		"3gp",
		"3gpp"
	]
},
	"video/3gpp-tt": {
	source: "iana"
},
	"video/3gpp2": {
	source: "iana",
	extensions: [
		"3g2"
	]
},
	"video/av1": {
	source: "iana"
},
	"video/bmpeg": {
	source: "iana"
},
	"video/bt656": {
	source: "iana"
},
	"video/celb": {
	source: "iana"
},
	"video/dv": {
	source: "iana"
},
	"video/encaprtp": {
	source: "iana"
},
	"video/ffv1": {
	source: "iana"
},
	"video/flexfec": {
	source: "iana"
},
	"video/h261": {
	source: "iana",
	extensions: [
		"h261"
	]
},
	"video/h263": {
	source: "iana",
	extensions: [
		"h263"
	]
},
	"video/h263-1998": {
	source: "iana"
},
	"video/h263-2000": {
	source: "iana"
},
	"video/h264": {
	source: "iana",
	extensions: [
		"h264"
	]
},
	"video/h264-rcdo": {
	source: "iana"
},
	"video/h264-svc": {
	source: "iana"
},
	"video/h265": {
	source: "iana"
},
	"video/iso.segment": {
	source: "iana",
	extensions: [
		"m4s"
	]
},
	"video/jpeg": {
	source: "iana",
	extensions: [
		"jpgv"
	]
},
	"video/jpeg2000": {
	source: "iana"
},
	"video/jpm": {
	source: "apache",
	extensions: [
		"jpm",
		"jpgm"
	]
},
	"video/jxsv": {
	source: "iana"
},
	"video/mj2": {
	source: "iana",
	extensions: [
		"mj2",
		"mjp2"
	]
},
	"video/mp1s": {
	source: "iana"
},
	"video/mp2p": {
	source: "iana"
},
	"video/mp2t": {
	source: "iana",
	extensions: [
		"ts"
	]
},
	"video/mp4": {
	source: "iana",
	compressible: false,
	extensions: [
		"mp4",
		"mp4v",
		"mpg4"
	]
},
	"video/mp4v-es": {
	source: "iana"
},
	"video/mpeg": {
	source: "iana",
	compressible: false,
	extensions: [
		"mpeg",
		"mpg",
		"mpe",
		"m1v",
		"m2v"
	]
},
	"video/mpeg4-generic": {
	source: "iana"
},
	"video/mpv": {
	source: "iana"
},
	"video/nv": {
	source: "iana"
},
	"video/ogg": {
	source: "iana",
	compressible: false,
	extensions: [
		"ogv"
	]
},
	"video/parityfec": {
	source: "iana"
},
	"video/pointer": {
	source: "iana"
},
	"video/quicktime": {
	source: "iana",
	compressible: false,
	extensions: [
		"qt",
		"mov"
	]
},
	"video/raptorfec": {
	source: "iana"
},
	"video/raw": {
	source: "iana"
},
	"video/rtp-enc-aescm128": {
	source: "iana"
},
	"video/rtploopback": {
	source: "iana"
},
	"video/rtx": {
	source: "iana"
},
	"video/scip": {
	source: "iana"
},
	"video/smpte291": {
	source: "iana"
},
	"video/smpte292m": {
	source: "iana"
},
	"video/ulpfec": {
	source: "iana"
},
	"video/vc1": {
	source: "iana"
},
	"video/vc2": {
	source: "iana"
},
	"video/vnd.cctv": {
	source: "iana"
},
	"video/vnd.dece.hd": {
	source: "iana",
	extensions: [
		"uvh",
		"uvvh"
	]
},
	"video/vnd.dece.mobile": {
	source: "iana",
	extensions: [
		"uvm",
		"uvvm"
	]
},
	"video/vnd.dece.mp4": {
	source: "iana"
},
	"video/vnd.dece.pd": {
	source: "iana",
	extensions: [
		"uvp",
		"uvvp"
	]
},
	"video/vnd.dece.sd": {
	source: "iana",
	extensions: [
		"uvs",
		"uvvs"
	]
},
	"video/vnd.dece.video": {
	source: "iana",
	extensions: [
		"uvv",
		"uvvv"
	]
},
	"video/vnd.directv.mpeg": {
	source: "iana"
},
	"video/vnd.directv.mpeg-tts": {
	source: "iana"
},
	"video/vnd.dlna.mpeg-tts": {
	source: "iana"
},
	"video/vnd.dvb.file": {
	source: "iana",
	extensions: [
		"dvb"
	]
},
	"video/vnd.fvt": {
	source: "iana",
	extensions: [
		"fvt"
	]
},
	"video/vnd.hns.video": {
	source: "iana"
},
	"video/vnd.iptvforum.1dparityfec-1010": {
	source: "iana"
},
	"video/vnd.iptvforum.1dparityfec-2005": {
	source: "iana"
},
	"video/vnd.iptvforum.2dparityfec-1010": {
	source: "iana"
},
	"video/vnd.iptvforum.2dparityfec-2005": {
	source: "iana"
},
	"video/vnd.iptvforum.ttsavc": {
	source: "iana"
},
	"video/vnd.iptvforum.ttsmpeg2": {
	source: "iana"
},
	"video/vnd.motorola.video": {
	source: "iana"
},
	"video/vnd.motorola.videop": {
	source: "iana"
},
	"video/vnd.mpegurl": {
	source: "iana",
	extensions: [
		"mxu",
		"m4u"
	]
},
	"video/vnd.ms-playready.media.pyv": {
	source: "iana",
	extensions: [
		"pyv"
	]
},
	"video/vnd.nokia.interleaved-multimedia": {
	source: "iana"
},
	"video/vnd.nokia.mp4vr": {
	source: "iana"
},
	"video/vnd.nokia.videovoip": {
	source: "iana"
},
	"video/vnd.objectvideo": {
	source: "iana"
},
	"video/vnd.radgamettools.bink": {
	source: "iana"
},
	"video/vnd.radgamettools.smacker": {
	source: "iana"
},
	"video/vnd.sealed.mpeg1": {
	source: "iana"
},
	"video/vnd.sealed.mpeg4": {
	source: "iana"
},
	"video/vnd.sealed.swf": {
	source: "iana"
},
	"video/vnd.sealedmedia.softseal.mov": {
	source: "iana"
},
	"video/vnd.uvvu.mp4": {
	source: "iana",
	extensions: [
		"uvu",
		"uvvu"
	]
},
	"video/vnd.vivo": {
	source: "iana",
	extensions: [
		"viv"
	]
},
	"video/vnd.youtube.yt": {
	source: "iana"
},
	"video/vp8": {
	source: "iana"
},
	"video/vp9": {
	source: "iana"
},
	"video/webm": {
	source: "apache",
	compressible: false,
	extensions: [
		"webm"
	]
},
	"video/x-f4v": {
	source: "apache",
	extensions: [
		"f4v"
	]
},
	"video/x-fli": {
	source: "apache",
	extensions: [
		"fli"
	]
},
	"video/x-flv": {
	source: "apache",
	compressible: false,
	extensions: [
		"flv"
	]
},
	"video/x-m4v": {
	source: "apache",
	extensions: [
		"m4v"
	]
},
	"video/x-matroska": {
	source: "apache",
	compressible: false,
	extensions: [
		"mkv",
		"mk3d",
		"mks"
	]
},
	"video/x-mng": {
	source: "apache",
	extensions: [
		"mng"
	]
},
	"video/x-ms-asf": {
	source: "apache",
	extensions: [
		"asf",
		"asx"
	]
},
	"video/x-ms-vob": {
	source: "apache",
	extensions: [
		"vob"
	]
},
	"video/x-ms-wm": {
	source: "apache",
	extensions: [
		"wm"
	]
},
	"video/x-ms-wmv": {
	source: "apache",
	compressible: false,
	extensions: [
		"wmv"
	]
},
	"video/x-ms-wmx": {
	source: "apache",
	extensions: [
		"wmx"
	]
},
	"video/x-ms-wvx": {
	source: "apache",
	extensions: [
		"wvx"
	]
},
	"video/x-msvideo": {
	source: "apache",
	extensions: [
		"avi"
	]
},
	"video/x-sgi-movie": {
	source: "apache",
	extensions: [
		"movie"
	]
},
	"video/x-smv": {
	source: "apache",
	extensions: [
		"smv"
	]
},
	"x-conference/x-cooltalk": {
	source: "apache",
	extensions: [
		"ice"
	]
},
	"x-shader/x-fragment": {
	compressible: true
},
	"x-shader/x-vertex": {
	compressible: true
}
};

/*!
 * mime-db
 * Copyright(c) 2014 Jonathan Ong
 * MIT Licensed
 */

/**
 * Module exports.
 */

var mimeDb = require$$0;

/*!
 * compressible
 * Copyright(c) 2013 Jonathan Ong
 * Copyright(c) 2014 Jeremiah Senkpiel
 * Copyright(c) 2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module dependencies.
 * @private
 */

var db = mimeDb;

/**
 * Module variables.
 * @private
 */

var COMPRESSIBLE_TYPE_REGEXP = /^text\/|\+(?:json|text|xml)$/i;
var EXTRACT_TYPE_REGEXP = /^\s*([^;\s]*)(?:;|\s|$)/;

/**
 * Module exports.
 * @public
 */

var compressible_1 = compressible$1;

/**
 * Checks if a type is compressible.
 *
 * @param {string} type
 * @return {Boolean} compressible
 * @public
 */

function compressible$1 (type) {
  if (!type || typeof type !== 'string') {
    return false
  }

  // strip parameters
  var match = EXTRACT_TYPE_REGEXP.exec(type);
  var mime = match && match[1].toLowerCase();
  var data = db[mime];

  // return database information
  if (data && data.compressible !== undefined) {
    return data.compressible
  }

  // fallback to regexp or unknown
  return COMPRESSIBLE_TYPE_REGEXP.test(mime) || undefined
}

/*!
 * on-headers
 * Copyright(c) 2014 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module exports.
 * @public
 */

var onHeaders_1 = onHeaders$1;

/**
 * Create a replacement writeHead method.
 *
 * @param {function} prevWriteHead
 * @param {function} listener
 * @private
 */

function createWriteHead (prevWriteHead, listener) {
  var fired = false;

  // return function with core name and argument list
  return function writeHead (statusCode) {
    // set headers from arguments
    var args = setWriteHeadHeaders.apply(this, arguments);

    // fire listener
    if (!fired) {
      fired = true;
      listener.call(this);

      // pass-along an updated status code
      if (typeof args[0] === 'number' && this.statusCode !== args[0]) {
        args[0] = this.statusCode;
        args.length = 1;
      }
    }

    return prevWriteHead.apply(this, args)
  }
}

/**
 * Execute a listener when a response is about to write headers.
 *
 * @param {object} res
 * @return {function} listener
 * @public
 */

function onHeaders$1 (res, listener) {
  if (!res) {
    throw new TypeError('argument res is required')
  }

  if (typeof listener !== 'function') {
    throw new TypeError('argument listener must be a function')
  }

  res.writeHead = createWriteHead(res.writeHead, listener);
}

/**
 * Set headers contained in array on the response object.
 *
 * @param {object} res
 * @param {array} headers
 * @private
 */

function setHeadersFromArray (res, headers) {
  for (var i = 0; i < headers.length; i++) {
    res.setHeader(headers[i][0], headers[i][1]);
  }
}

/**
 * Set headers contained in object on the response object.
 *
 * @param {object} res
 * @param {object} headers
 * @private
 */

function setHeadersFromObject (res, headers) {
  var keys = Object.keys(headers);
  for (var i = 0; i < keys.length; i++) {
    var k = keys[i];
    if (k) res.setHeader(k, headers[k]);
  }
}

/**
 * Set headers and other properties on the response object.
 *
 * @param {number} statusCode
 * @private
 */

function setWriteHeadHeaders (statusCode) {
  var length = arguments.length;
  var headerIndex = length > 1 && typeof arguments[1] === 'string'
    ? 2
    : 1;

  var headers = length >= headerIndex + 1
    ? arguments[headerIndex]
    : undefined;

  this.statusCode = statusCode;

  if (Array.isArray(headers)) {
    // handle array case
    setHeadersFromArray(this, headers);
  } else if (headers) {
    // handle object case
    setHeadersFromObject(this, headers);
  }

  // copy leading arguments
  var args = new Array(Math.min(length, headerIndex));
  for (var i = 0; i < args.length; i++) {
    args[i] = arguments[i];
  }

  return args
}

/*!
 * compression
 * Copyright(c) 2010 Sencha Inc.
 * Copyright(c) 2011 TJ Holowaychuk
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2014-2015 Douglas Christopher Wilson
 * MIT Licensed
 */

/**
 * Module dependencies.
 * @private
 */

var accepts = accepts$1;
var Buffer$1 = safeBuffer.exports.Buffer;
var bytes = bytes$2.exports;
var compressible = compressible_1;
var debug = src.exports('compression');
var onHeaders = onHeaders_1;
var vary = vary$2.exports;
var zlib = require$$0__default$7;

/**
 * Module exports.
 */

compression$2.exports = compression;
compression$2.exports.filter = shouldCompress;

/**
 * Module variables.
 * @private
 */

var cacheControlNoTransformRegExp = /(?:^|,)\s*?no-transform\s*?(?:,|$)/;

/**
 * Compress response data with gzip / deflate.
 *
 * @param {Object} [options]
 * @return {Function} middleware
 * @public
 */

function compression (options) {
  var opts = options || {};

  // options
  var filter = opts.filter || shouldCompress;
  var threshold = bytes.parse(opts.threshold);

  if (threshold == null) {
    threshold = 1024;
  }

  return function compression (req, res, next) {
    var ended = false;
    var length;
    var listeners = [];
    var stream;

    var _end = res.end;
    var _on = res.on;
    var _write = res.write;

    // flush
    res.flush = function flush () {
      if (stream) {
        stream.flush();
      }
    };

    // proxy

    res.write = function write (chunk, encoding) {
      if (ended) {
        return false
      }

      if (!this._header) {
        this._implicitHeader();
      }

      return stream
        ? stream.write(toBuffer(chunk, encoding))
        : _write.call(this, chunk, encoding)
    };

    res.end = function end (chunk, encoding) {
      if (ended) {
        return false
      }

      if (!this._header) {
        // estimate the length
        if (!this.getHeader('Content-Length')) {
          length = chunkLength(chunk, encoding);
        }

        this._implicitHeader();
      }

      if (!stream) {
        return _end.call(this, chunk, encoding)
      }

      // mark ended
      ended = true;

      // write Buffer for Node.js 0.8
      return chunk
        ? stream.end(toBuffer(chunk, encoding))
        : stream.end()
    };

    res.on = function on (type, listener) {
      if (!listeners || type !== 'drain') {
        return _on.call(this, type, listener)
      }

      if (stream) {
        return stream.on(type, listener)
      }

      // buffer listeners for future stream
      listeners.push([type, listener]);

      return this
    };

    function nocompress (msg) {
      debug('no compression: %s', msg);
      addListeners(res, _on, listeners);
      listeners = null;
    }

    onHeaders(res, function onResponseHeaders () {
      // determine if request is filtered
      if (!filter(req, res)) {
        nocompress('filtered');
        return
      }

      // determine if the entity should be transformed
      if (!shouldTransform(req, res)) {
        nocompress('no transform');
        return
      }

      // vary
      vary(res, 'Accept-Encoding');

      // content-length below threshold
      if (Number(res.getHeader('Content-Length')) < threshold || length < threshold) {
        nocompress('size below threshold');
        return
      }

      var encoding = res.getHeader('Content-Encoding') || 'identity';

      // already encoded
      if (encoding !== 'identity') {
        nocompress('already encoded');
        return
      }

      // head
      if (req.method === 'HEAD') {
        nocompress('HEAD request');
        return
      }

      // compression method
      var accept = accepts(req);
      var method = accept.encoding(['gzip', 'deflate', 'identity']);

      // we really don't prefer deflate
      if (method === 'deflate' && accept.encoding(['gzip'])) {
        method = accept.encoding(['gzip', 'identity']);
      }

      // negotiation failed
      if (!method || method === 'identity') {
        nocompress('not acceptable');
        return
      }

      // compression stream
      debug('%s compression', method);
      stream = method === 'gzip'
        ? zlib.createGzip(opts)
        : zlib.createDeflate(opts);

      // add buffered listeners to stream
      addListeners(stream, stream.on, listeners);

      // header fields
      res.setHeader('Content-Encoding', method);
      res.removeHeader('Content-Length');

      // compression
      stream.on('data', function onStreamData (chunk) {
        if (_write.call(res, chunk) === false) {
          stream.pause();
        }
      });

      stream.on('end', function onStreamEnd () {
        _end.call(res);
      });

      _on.call(res, 'drain', function onResponseDrain () {
        stream.resume();
      });
    });

    next();
  }
}

/**
 * Add bufferred listeners to stream
 * @private
 */

function addListeners (stream, on, listeners) {
  for (var i = 0; i < listeners.length; i++) {
    on.apply(stream, listeners[i]);
  }
}

/**
 * Get the length of a given chunk
 */

function chunkLength (chunk, encoding) {
  if (!chunk) {
    return 0
  }

  return !Buffer$1.isBuffer(chunk)
    ? Buffer$1.byteLength(chunk, encoding)
    : chunk.length
}

/**
 * Default filter function.
 * @private
 */

function shouldCompress (req, res) {
  var type = res.getHeader('Content-Type');

  if (type === undefined || !compressible(type)) {
    debug('%s not compressible', type);
    return false
  }

  return true
}

/**
 * Determine if the entity should be transformed.
 * @private
 */

function shouldTransform (req, res) {
  var cacheControl = res.getHeader('Cache-Control');

  // Don't compress for Cache-Control: no-transform
  // https://tools.ietf.org/html/rfc7234#section-5.2.2.4
  return !cacheControl ||
    !cacheControlNoTransformRegExp.test(cacheControl)
}

/**
 * Coerce arguments to Buffer
 * @private
 */

function toBuffer (chunk, encoding) {
  return !Buffer$1.isBuffer(chunk)
    ? Buffer$1.from(chunk, encoding)
    : chunk
}

var compression$1 = compression$2.exports;

/**
 * Starts the Vite server in preview mode, to simulate a production deployment
 * @param config - the resolved Vite config
 * @param serverOptions - what host and port to use
 * @experimental
 */
async function preview(config, serverOptions) {
    var _a, _b;
    const app = connect();
    const httpServer = await resolveHttpServer(config.server, app, await resolveHttpsConfig(config));
    // cors
    const { cors } = config.server;
    if (cors !== false) {
        app.use(corsMiddleware(typeof cors === 'boolean' ? {} : cors));
    }
    // proxy
    if (config.server.proxy) {
        app.use(proxyMiddleware(httpServer, config));
    }
    app.use(compression$1());
    const distDir = path__default.resolve(config.root, config.build.outDir);
    app.use(config.base, sirv(distDir, {
        etag: true,
        dev: true,
        single: true
    }));
    const options = config.server;
    const hostname = resolveHostname((_a = serverOptions.host) !== null && _a !== void 0 ? _a : options.host);
    const port = (_b = serverOptions.port) !== null && _b !== void 0 ? _b : 5000;
    const protocol = options.https ? 'https' : 'http';
    const logger = config.logger;
    const base = config.base;
    const serverPort = await httpServerStart(httpServer, {
        port,
        strictPort: options.strictPort,
        host: hostname.host,
        logger
    });
    if (options.open) {
        const path = typeof options.open === 'string' ? options.open : base;
        openBrowser(path.startsWith('http')
            ? path
            : `${protocol}://${hostname.name}:${serverPort}${path}`, true, logger);
    }
    return httpServer;
}

exports.build = build;
exports.build$1 = build$1;
exports.commonjsGlobal = commonjsGlobal;
exports.createLogger = createLogger;
exports.createServer = createServer;
exports.defineConfig = defineConfig;
exports.getAugmentedNamespace = getAugmentedNamespace;
exports.getDefaultExportFromCjs = getDefaultExportFromCjs;
exports.index = index$1;
exports.index$1 = index;
exports.loadConfigFromFile = loadConfigFromFile;
exports.loadEnv = loadEnv;
exports.mergeConfig = mergeConfig;
exports.normalizePath = normalizePath$4;
exports.optimizeDeps = optimizeDeps;
exports.preview = preview;
exports.printHttpServerUrls = printHttpServerUrls;
exports.resolveConfig = resolveConfig;
exports.resolveEnvPrefix = resolveEnvPrefix;
exports.resolvePackageData = resolvePackageData;
exports.resolvePackageEntry = resolvePackageEntry;
exports.searchForWorkspaceRoot = searchForWorkspaceRoot;
exports.send = send$1;
exports.sortUserPlugins = sortUserPlugins;
exports.source = source;
exports.transformWithEsbuild = transformWithEsbuild;
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