mirror of
https://github.com/overleaf/overleaf.git
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471 lines
18 KiB
JavaScript
471 lines
18 KiB
JavaScript
define([], function() {
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/*!
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* Symbol-ES6 v0.1.2
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* ES6 Symbol polyfill in pure ES5.
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*
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* OL MODIFICATIONS:
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* Added isImplemented function to conditionally polyfill only if Symbol isn't
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* supported. Taken from https://github.com/medikoo/es6-symbol
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*
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* @license Copyright (c) 2017-2018 Rousan Ali, MIT License
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*
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* Codebase: https://github.com/rousan/symbol-es6
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* Date: 28th Jan, 2018
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*/
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(function (global, factory) {
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"use strict";
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if (typeof module === "object" && typeof module.exports === "object") {
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// For the environment like NodeJS, CommonJS etc where module or
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// module.exports objects are available
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module.exports = factory(global);
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} else {
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// For browser context, where global object is window
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factory(global);
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}
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/* window is for browser environment and global is for NodeJS environment */
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})(typeof window !== "undefined" ? window : global, function (global) {
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"use strict";
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function isImplemented() {
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var symbol;
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if (typeof Symbol !== 'function') return false;
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symbol = Symbol('test symbol');
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try { String(symbol); } catch (e) { return false; }
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var validTypes = { object: true, symbol: true };
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// Return 'true' also for polyfills
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if (!validTypes[typeof Symbol.iterator]) return false;
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if (!validTypes[typeof Symbol.toPrimitive]) return false;
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if (!validTypes[typeof Symbol.toStringTag]) return false;
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return true;
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};
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if (!isImplemented()) {
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!(function (global, factory) {
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"use strict";
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"object" == typeof module && "object" == typeof module.exports
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? (module.exports = factory(global))
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: factory(global);
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})("undefined" != typeof window ? window : global, function (global) {
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"use strict";
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var defineProperty = Object.defineProperty,
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defineProperties = Object.defineProperties,
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symbolHiddenCounter = 0,
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globalSymbolRegistry = [],
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slice = Array.prototype.slice,
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ES6 = "object" == typeof global.ES6 ? global.ES6 : (global.ES6 = {}),
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isArray = Array.isArray,
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objectToString = Object.prototype.toString,
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push = Array.prototype.push,
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emptyFunction = function () { },
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simpleFunction = function (arg) {
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return arg;
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},
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isCallable = function (fn) {
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return "function" == typeof fn;
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},
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Iterator = function () { },
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ArrayIterator = function (array, flag) {
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(this._array = array), (this._flag = flag), (this._nextIndex = 0);
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},
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StringIterator = function (string, flag) {
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(this._string = string), (this._flag = flag), (this._nextIndex = 0);
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},
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isObject = function (value) {
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return (
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null !== value &&
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("object" == typeof value || "function" == typeof value)
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);
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},
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setupSymbolInternals = function (symbol, desc) {
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return (
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defineProperties(symbol, {
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_description: { value: desc },
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_isSymbol: { value: !0 },
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_id: { value: symbolHiddenCounter++ }
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}),
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symbol
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);
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},
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appendArray = function (array1, array2) {
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if (
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"number" == typeof array1.length &&
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array1.length >= 0 &&
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"number" == typeof array2.length &&
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array2.length >= 0
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) {
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var length1 = Math.floor(array1.length),
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length2 = Math.floor(array2.length),
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i = 0;
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for (array1.length = length1 + length2; i < length2; ++i)
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array2.hasOwnProperty(i) && (array1[length1 + i] = array2[i]);
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}
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},
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simpleInheritance = function (child, parent) {
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if ("function" != typeof child || "function" != typeof parent)
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throw new TypeError("Child and Parent must be function type");
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(child.prototype = Object.create(parent.prototype)),
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(child.prototype.constructor = child);
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},
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Symbol = function Symbol(desc) {
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if (
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((desc = void 0 === desc ? "" : String(desc)), this instanceof Symbol)
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)
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throw new TypeError("Symbol is not a constructor");
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return setupSymbolInternals(Object.create(Symbol.prototype), desc);
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};
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defineProperties(Symbol, {
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for: {
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value: function (key) {
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key = String(key);
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for (
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var record, registryLength = globalSymbolRegistry.length, i = 0;
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i < registryLength;
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++i
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)
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if ((record = globalSymbolRegistry[i]).key === key)
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return record.symbol;
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return (
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(record = { key: key, symbol: Symbol(key) }),
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globalSymbolRegistry.push(record),
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record.symbol
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);
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},
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writable: !0,
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configurable: !0
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},
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keyFor: {
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value: function (symbol) {
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if (!ES6.isSymbol(symbol))
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throw new TypeError(String(symbol) + " is not a symbol");
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for (
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var record, registryLength = globalSymbolRegistry.length, i = 0;
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i < registryLength;
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++i
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)
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if ((record = globalSymbolRegistry[i]).symbol === symbol)
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return record.key;
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},
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writable: !0,
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configurable: !0
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},
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hasInstance: { value: Symbol("Symbol.hasInstance") },
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isConcatSpreadable: { value: Symbol("Symbol.isConcatSpreadable") },
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iterator: { value: Symbol("Symbol.iterator") },
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toStringTag: { value: Symbol("Symbol.toStringTag") }
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}),
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(Symbol.prototype.toString = function () {
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return "@@_____" + this._id + "_____";
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}),
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(Symbol.prototype.valueOf = function () {
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return this;
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}),
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defineProperty(Iterator.prototype, Symbol.iterator.toString(), {
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value: function () {
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return this;
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},
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writable: !0,
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configurable: !0
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}),
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simpleInheritance(ArrayIterator, Iterator),
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simpleInheritance(StringIterator, Iterator),
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defineProperty(ArrayIterator.prototype, Symbol.toStringTag.toString(), {
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value: "Array Iterator",
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configurable: !0
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}),
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defineProperty(StringIterator.prototype, Symbol.toStringTag.toString(), {
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value: "String Iterator",
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configurable: !0
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}),
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(ArrayIterator.prototype.next = function () {
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if (!(this instanceof ArrayIterator))
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throw new TypeError(
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"Method Array Iterator.prototype.next called on incompatible receiver " +
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String(this)
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);
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var nextValue;
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return -1 === this._nextIndex
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? { done: !0, value: void 0 }
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: "number" == typeof this._array.length &&
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this._array.length >= 0 &&
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this._nextIndex < Math.floor(this._array.length)
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? (1 === this._flag
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? (nextValue = [this._nextIndex, this._array[this._nextIndex]])
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: 2 === this._flag
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? (nextValue = this._array[this._nextIndex])
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: 3 === this._flag && (nextValue = this._nextIndex),
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this._nextIndex++ ,
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{ done: !1, value: nextValue })
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: ((this._nextIndex = -1), { done: !0, value: void 0 });
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}),
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(StringIterator.prototype.next = function () {
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if (!(this instanceof StringIterator))
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throw new TypeError(
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"Method String Iterator.prototype.next called on incompatible receiver " +
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String(this)
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);
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var nextValue,
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stringObject = new String(this._string);
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return -1 === this._nextIndex
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? { done: !0, value: void 0 }
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: this._nextIndex < stringObject.length
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? ((nextValue = stringObject[this._nextIndex]),
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this._nextIndex++ ,
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{ done: !1, value: nextValue })
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: ((this._nextIndex = -1), { done: !0, value: void 0 });
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});
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var SpreadOperatorImpl = function (target, thisArg) {
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(this._target = target), (this._values = []), (this._thisArg = thisArg);
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};
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(SpreadOperatorImpl.prototype.spread = function () {
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var self = this;
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return (
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slice.call(arguments).forEach(function (iterable) {
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ES6.forOf(iterable, function (value) {
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self._values.push(value);
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});
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}),
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self
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);
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}),
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(SpreadOperatorImpl.prototype.add = function () {
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var self = this;
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return (
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slice.call(arguments).forEach(function (value) {
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self._values.push(value);
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}),
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self
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);
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}),
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(SpreadOperatorImpl.prototype.call = function (thisArg) {
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if ("function" != typeof this._target)
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throw new TypeError("Target is not a function");
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return (
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(thisArg = arguments.length <= 0 ? this._thisArg : thisArg),
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this._target.apply(thisArg, this._values)
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);
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}),
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(SpreadOperatorImpl.prototype.new = function () {
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if ("function" != typeof this._target)
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throw new TypeError("Target is not a constructor");
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var temp, returnValue;
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return (
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(temp = Object.create(this._target.prototype)),
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(returnValue = this._target.apply(temp, this._values)),
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isObject(returnValue) ? returnValue : temp
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);
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}),
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(SpreadOperatorImpl.prototype.array = function () {
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if (!isArray(this._target)) throw new TypeError("Target is not a array");
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return push.apply(this._target, this._values), this._target;
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});
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return (
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defineProperties(ES6, {
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isSymbol: {
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value: function (symbol) {
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return (
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symbol instanceof Symbol &&
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(function (symbol) {
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return (
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!0 === symbol._isSymbol &&
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"number" == typeof symbol._id &&
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"string" == typeof symbol._description
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);
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})(symbol)
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);
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},
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writable: !0,
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configurable: !0
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},
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instanceOf: {
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value: function (object, constructor) {
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if (!isObject(constructor))
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throw new TypeError(
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"Right-hand side of 'instanceof' is not an object"
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);
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var hasInstanceSymbolProp = constructor[Symbol.hasInstance];
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if (void 0 === hasInstanceSymbolProp)
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return object instanceof constructor;
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if ("function" != typeof hasInstanceSymbolProp)
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throw new TypeError(
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typeof hasInstanceSymbolProp + " is not a function"
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);
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return hasInstanceSymbolProp.call(constructor, object);
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},
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writable: !0,
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configurable: !0
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},
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forOf: {
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value: function (iterable, callback, thisArg) {
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if (
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((callback =
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"function" != typeof callback ? emptyFunction : callback),
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"function" != typeof iterable[Symbol.iterator])
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)
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throw new TypeError("Iterable[Symbol.iterator] is not a function");
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var iterationResult,
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iterator = iterable[Symbol.iterator]();
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if ("function" != typeof iterator.next)
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throw new TypeError(".iterator.next is not a function");
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for (; ;) {
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if (
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((iterationResult = iterator.next()), !isObject(iterationResult))
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)
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throw new TypeError(
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"Iterator result " + iterationResult + " is not an object"
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);
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if (iterationResult.done) break;
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callback.call(thisArg, iterationResult.value);
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}
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},
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writable: !0,
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configurable: !0
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},
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spreadOperator: {
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value: function (target, thisArg) {
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if ("function" != typeof target && !isArray(target))
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throw new TypeError(
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"Spread operator only supports on array and function objects at this moment"
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);
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return new SpreadOperatorImpl(target, thisArg);
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},
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writable: !0,
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configurable: !0
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}
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}),
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defineProperty(global, "Symbol", {
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value: Symbol,
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writable: !0,
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configurable: !0
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}),
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defineProperty(Function.prototype, Symbol.hasInstance.toString(), {
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value: function (instance) {
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return "function" == typeof this && instance instanceof this;
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}
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}),
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defineProperty(Array.prototype, "concat", {
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value: function () {
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if (void 0 === this || null === this)
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throw new TypeError(
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"Array.prototype.concat called on null or undefined"
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);
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var self = Object(this),
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targets = slice.call(arguments),
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outputs = [];
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return (
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targets.unshift(self),
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targets.forEach(function (target) {
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isObject(target)
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? void 0 !== target[Symbol.isConcatSpreadable]
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? target[Symbol.isConcatSpreadable]
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? appendArray(outputs, target)
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: outputs.push(target)
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: isArray(target)
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? appendArray(outputs, target)
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: outputs.push(target)
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: outputs.push(target);
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}),
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outputs
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);
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},
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writable: !0,
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configurable: !0
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}),
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defineProperty(Object.prototype, "toString", {
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value: function () {
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return void 0 === this || null === this
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? objectToString.call(this)
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: "string" == typeof this[Symbol.toStringTag]
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? "[object " + this[Symbol.toStringTag] + "]"
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: objectToString.call(this);
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},
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writable: !0,
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configurable: !0
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}),
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defineProperty(Array.prototype, Symbol.iterator.toString(), {
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value: function () {
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if (void 0 === this || null === this)
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throw new TypeError("Cannot convert undefined or null to object");
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var self = Object(this);
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return new ArrayIterator(self, 2);
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},
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writable: !0,
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configurable: !0
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}),
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defineProperty(Array, "from", {
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value: function (arrayLike, mapFn, thisArg) {
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var constructor,
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length,
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outputs,
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i = 0;
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if (
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((constructor = isCallable(this) ? this : Array),
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void 0 === arrayLike || null === arrayLike)
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)
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throw new TypeError("Cannot convert undefined or null to object");
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if (((arrayLike = Object(arrayLike)), void 0 === mapFn))
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mapFn = simpleFunction;
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else if (!isCallable(mapFn))
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throw new TypeError(mapFn + " is not a function");
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if (void 0 === arrayLike[Symbol.iterator]) {
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if (!("number" == typeof arrayLike.length && arrayLike.length >= 0))
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return ((outputs = new constructor(0)).length = 0), outputs;
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for (
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length = Math.floor(arrayLike.length),
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(outputs = new constructor(length)).length = length;
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i < length;
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++i
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)
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outputs[i] = mapFn.call(thisArg, arrayLike[i]);
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} else
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((outputs = new constructor()).length = 0),
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ES6.forOf(arrayLike, function (value) {
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outputs.length++ ,
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(outputs[outputs.length - 1] = mapFn.call(thisArg, value));
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});
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return outputs;
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},
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writable: !0,
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configurable: !0
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}),
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defineProperty(Array.prototype, "entries", {
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value: function () {
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if (void 0 === this || null === this)
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throw new TypeError("Cannot convert undefined or null to object");
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var self = Object(this);
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return new ArrayIterator(self, 1);
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},
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writable: !0,
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configurable: !0
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}),
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defineProperty(Array.prototype, "keys", {
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value: function () {
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if (void 0 === this || null === this)
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throw new TypeError("Cannot convert undefined or null to object");
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var self = Object(this);
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return new ArrayIterator(self, 3);
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},
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writable: !0,
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configurable: !0
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}),
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defineProperty(String.prototype, Symbol.iterator.toString(), {
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value: function () {
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if (void 0 === this || null === this)
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throw new TypeError(
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"String.prototype[Symbol.iterator] called on null or undefined"
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);
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return new StringIterator(String(this), 0);
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},
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writable: !0,
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configurable: !0
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}),
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ES6
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);
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});
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}
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});
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});
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