mirror of
https://github.com/overleaf/overleaf.git
synced 2024-12-12 06:11:35 -05:00
471 lines
18 KiB
JavaScript
471 lines
18 KiB
JavaScript
define([], function() {
|
|
/*!
|
|
* Symbol-ES6 v0.1.2
|
|
* ES6 Symbol polyfill in pure ES5.
|
|
*
|
|
* OL MODIFICATIONS:
|
|
* Added isImplemented function to conditionally polyfill only if Symbol isn't
|
|
* supported. Taken from https://github.com/medikoo/es6-symbol
|
|
*
|
|
* @license Copyright (c) 2017-2018 Rousan Ali, MIT License
|
|
*
|
|
* Codebase: https://github.com/rousan/symbol-es6
|
|
* Date: 28th Jan, 2018
|
|
*/
|
|
|
|
(function (global, factory) {
|
|
"use strict";
|
|
|
|
if (typeof module === "object" && typeof module.exports === "object") {
|
|
// For the environment like NodeJS, CommonJS etc where module or
|
|
// module.exports objects are available
|
|
module.exports = factory(global);
|
|
} else {
|
|
// For browser context, where global object is window
|
|
factory(global);
|
|
}
|
|
|
|
/* window is for browser environment and global is for NodeJS environment */
|
|
})(typeof window !== "undefined" ? window : global, function (global) {
|
|
"use strict";
|
|
|
|
function isImplemented() {
|
|
var symbol;
|
|
if (typeof Symbol !== 'function') return false;
|
|
symbol = Symbol('test symbol');
|
|
try { String(symbol); } catch (e) { return false; }
|
|
|
|
var validTypes = { object: true, symbol: true };
|
|
// Return 'true' also for polyfills
|
|
if (!validTypes[typeof Symbol.iterator]) return false;
|
|
if (!validTypes[typeof Symbol.toPrimitive]) return false;
|
|
if (!validTypes[typeof Symbol.toStringTag]) return false;
|
|
|
|
return true;
|
|
};
|
|
|
|
if (!isImplemented()) {
|
|
!(function (global, factory) {
|
|
"use strict";
|
|
"object" == typeof module && "object" == typeof module.exports
|
|
? (module.exports = factory(global))
|
|
: factory(global);
|
|
})("undefined" != typeof window ? window : global, function (global) {
|
|
"use strict";
|
|
var defineProperty = Object.defineProperty,
|
|
defineProperties = Object.defineProperties,
|
|
symbolHiddenCounter = 0,
|
|
globalSymbolRegistry = [],
|
|
slice = Array.prototype.slice,
|
|
ES6 = "object" == typeof global.ES6 ? global.ES6 : (global.ES6 = {}),
|
|
isArray = Array.isArray,
|
|
objectToString = Object.prototype.toString,
|
|
push = Array.prototype.push,
|
|
emptyFunction = function () { },
|
|
simpleFunction = function (arg) {
|
|
return arg;
|
|
},
|
|
isCallable = function (fn) {
|
|
return "function" == typeof fn;
|
|
},
|
|
Iterator = function () { },
|
|
ArrayIterator = function (array, flag) {
|
|
(this._array = array), (this._flag = flag), (this._nextIndex = 0);
|
|
},
|
|
StringIterator = function (string, flag) {
|
|
(this._string = string), (this._flag = flag), (this._nextIndex = 0);
|
|
},
|
|
isObject = function (value) {
|
|
return (
|
|
null !== value &&
|
|
("object" == typeof value || "function" == typeof value)
|
|
);
|
|
},
|
|
setupSymbolInternals = function (symbol, desc) {
|
|
return (
|
|
defineProperties(symbol, {
|
|
_description: { value: desc },
|
|
_isSymbol: { value: !0 },
|
|
_id: { value: symbolHiddenCounter++ }
|
|
}),
|
|
symbol
|
|
);
|
|
},
|
|
appendArray = function (array1, array2) {
|
|
if (
|
|
"number" == typeof array1.length &&
|
|
array1.length >= 0 &&
|
|
"number" == typeof array2.length &&
|
|
array2.length >= 0
|
|
) {
|
|
var length1 = Math.floor(array1.length),
|
|
length2 = Math.floor(array2.length),
|
|
i = 0;
|
|
for (array1.length = length1 + length2; i < length2; ++i)
|
|
array2.hasOwnProperty(i) && (array1[length1 + i] = array2[i]);
|
|
}
|
|
},
|
|
simpleInheritance = function (child, parent) {
|
|
if ("function" != typeof child || "function" != typeof parent)
|
|
throw new TypeError("Child and Parent must be function type");
|
|
(child.prototype = Object.create(parent.prototype)),
|
|
(child.prototype.constructor = child);
|
|
},
|
|
Symbol = function Symbol(desc) {
|
|
if (
|
|
((desc = void 0 === desc ? "" : String(desc)), this instanceof Symbol)
|
|
)
|
|
throw new TypeError("Symbol is not a constructor");
|
|
return setupSymbolInternals(Object.create(Symbol.prototype), desc);
|
|
};
|
|
defineProperties(Symbol, {
|
|
for: {
|
|
value: function (key) {
|
|
key = String(key);
|
|
for (
|
|
var record, registryLength = globalSymbolRegistry.length, i = 0;
|
|
i < registryLength;
|
|
++i
|
|
)
|
|
if ((record = globalSymbolRegistry[i]).key === key)
|
|
return record.symbol;
|
|
return (
|
|
(record = { key: key, symbol: Symbol(key) }),
|
|
globalSymbolRegistry.push(record),
|
|
record.symbol
|
|
);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
},
|
|
keyFor: {
|
|
value: function (symbol) {
|
|
if (!ES6.isSymbol(symbol))
|
|
throw new TypeError(String(symbol) + " is not a symbol");
|
|
for (
|
|
var record, registryLength = globalSymbolRegistry.length, i = 0;
|
|
i < registryLength;
|
|
++i
|
|
)
|
|
if ((record = globalSymbolRegistry[i]).symbol === symbol)
|
|
return record.key;
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
},
|
|
hasInstance: { value: Symbol("Symbol.hasInstance") },
|
|
isConcatSpreadable: { value: Symbol("Symbol.isConcatSpreadable") },
|
|
iterator: { value: Symbol("Symbol.iterator") },
|
|
toStringTag: { value: Symbol("Symbol.toStringTag") }
|
|
}),
|
|
(Symbol.prototype.toString = function () {
|
|
return "@@_____" + this._id + "_____";
|
|
}),
|
|
(Symbol.prototype.valueOf = function () {
|
|
return this;
|
|
}),
|
|
defineProperty(Iterator.prototype, Symbol.iterator.toString(), {
|
|
value: function () {
|
|
return this;
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
simpleInheritance(ArrayIterator, Iterator),
|
|
simpleInheritance(StringIterator, Iterator),
|
|
defineProperty(ArrayIterator.prototype, Symbol.toStringTag.toString(), {
|
|
value: "Array Iterator",
|
|
configurable: !0
|
|
}),
|
|
defineProperty(StringIterator.prototype, Symbol.toStringTag.toString(), {
|
|
value: "String Iterator",
|
|
configurable: !0
|
|
}),
|
|
(ArrayIterator.prototype.next = function () {
|
|
if (!(this instanceof ArrayIterator))
|
|
throw new TypeError(
|
|
"Method Array Iterator.prototype.next called on incompatible receiver " +
|
|
String(this)
|
|
);
|
|
var nextValue;
|
|
return -1 === this._nextIndex
|
|
? { done: !0, value: void 0 }
|
|
: "number" == typeof this._array.length &&
|
|
this._array.length >= 0 &&
|
|
this._nextIndex < Math.floor(this._array.length)
|
|
? (1 === this._flag
|
|
? (nextValue = [this._nextIndex, this._array[this._nextIndex]])
|
|
: 2 === this._flag
|
|
? (nextValue = this._array[this._nextIndex])
|
|
: 3 === this._flag && (nextValue = this._nextIndex),
|
|
this._nextIndex++ ,
|
|
{ done: !1, value: nextValue })
|
|
: ((this._nextIndex = -1), { done: !0, value: void 0 });
|
|
}),
|
|
(StringIterator.prototype.next = function () {
|
|
if (!(this instanceof StringIterator))
|
|
throw new TypeError(
|
|
"Method String Iterator.prototype.next called on incompatible receiver " +
|
|
String(this)
|
|
);
|
|
var nextValue,
|
|
stringObject = new String(this._string);
|
|
return -1 === this._nextIndex
|
|
? { done: !0, value: void 0 }
|
|
: this._nextIndex < stringObject.length
|
|
? ((nextValue = stringObject[this._nextIndex]),
|
|
this._nextIndex++ ,
|
|
{ done: !1, value: nextValue })
|
|
: ((this._nextIndex = -1), { done: !0, value: void 0 });
|
|
});
|
|
var SpreadOperatorImpl = function (target, thisArg) {
|
|
(this._target = target), (this._values = []), (this._thisArg = thisArg);
|
|
};
|
|
(SpreadOperatorImpl.prototype.spread = function () {
|
|
var self = this;
|
|
return (
|
|
slice.call(arguments).forEach(function (iterable) {
|
|
ES6.forOf(iterable, function (value) {
|
|
self._values.push(value);
|
|
});
|
|
}),
|
|
self
|
|
);
|
|
}),
|
|
(SpreadOperatorImpl.prototype.add = function () {
|
|
var self = this;
|
|
return (
|
|
slice.call(arguments).forEach(function (value) {
|
|
self._values.push(value);
|
|
}),
|
|
self
|
|
);
|
|
}),
|
|
(SpreadOperatorImpl.prototype.call = function (thisArg) {
|
|
if ("function" != typeof this._target)
|
|
throw new TypeError("Target is not a function");
|
|
return (
|
|
(thisArg = arguments.length <= 0 ? this._thisArg : thisArg),
|
|
this._target.apply(thisArg, this._values)
|
|
);
|
|
}),
|
|
(SpreadOperatorImpl.prototype.new = function () {
|
|
if ("function" != typeof this._target)
|
|
throw new TypeError("Target is not a constructor");
|
|
var temp, returnValue;
|
|
return (
|
|
(temp = Object.create(this._target.prototype)),
|
|
(returnValue = this._target.apply(temp, this._values)),
|
|
isObject(returnValue) ? returnValue : temp
|
|
);
|
|
}),
|
|
(SpreadOperatorImpl.prototype.array = function () {
|
|
if (!isArray(this._target)) throw new TypeError("Target is not a array");
|
|
return push.apply(this._target, this._values), this._target;
|
|
});
|
|
return (
|
|
defineProperties(ES6, {
|
|
isSymbol: {
|
|
value: function (symbol) {
|
|
return (
|
|
symbol instanceof Symbol &&
|
|
(function (symbol) {
|
|
return (
|
|
!0 === symbol._isSymbol &&
|
|
"number" == typeof symbol._id &&
|
|
"string" == typeof symbol._description
|
|
);
|
|
})(symbol)
|
|
);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
},
|
|
instanceOf: {
|
|
value: function (object, constructor) {
|
|
if (!isObject(constructor))
|
|
throw new TypeError(
|
|
"Right-hand side of 'instanceof' is not an object"
|
|
);
|
|
var hasInstanceSymbolProp = constructor[Symbol.hasInstance];
|
|
if (void 0 === hasInstanceSymbolProp)
|
|
return object instanceof constructor;
|
|
if ("function" != typeof hasInstanceSymbolProp)
|
|
throw new TypeError(
|
|
typeof hasInstanceSymbolProp + " is not a function"
|
|
);
|
|
return hasInstanceSymbolProp.call(constructor, object);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
},
|
|
forOf: {
|
|
value: function (iterable, callback, thisArg) {
|
|
if (
|
|
((callback =
|
|
"function" != typeof callback ? emptyFunction : callback),
|
|
"function" != typeof iterable[Symbol.iterator])
|
|
)
|
|
throw new TypeError("Iterable[Symbol.iterator] is not a function");
|
|
var iterationResult,
|
|
iterator = iterable[Symbol.iterator]();
|
|
if ("function" != typeof iterator.next)
|
|
throw new TypeError(".iterator.next is not a function");
|
|
for (; ;) {
|
|
if (
|
|
((iterationResult = iterator.next()), !isObject(iterationResult))
|
|
)
|
|
throw new TypeError(
|
|
"Iterator result " + iterationResult + " is not an object"
|
|
);
|
|
if (iterationResult.done) break;
|
|
callback.call(thisArg, iterationResult.value);
|
|
}
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
},
|
|
spreadOperator: {
|
|
value: function (target, thisArg) {
|
|
if ("function" != typeof target && !isArray(target))
|
|
throw new TypeError(
|
|
"Spread operator only supports on array and function objects at this moment"
|
|
);
|
|
return new SpreadOperatorImpl(target, thisArg);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}
|
|
}),
|
|
defineProperty(global, "Symbol", {
|
|
value: Symbol,
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
defineProperty(Function.prototype, Symbol.hasInstance.toString(), {
|
|
value: function (instance) {
|
|
return "function" == typeof this && instance instanceof this;
|
|
}
|
|
}),
|
|
defineProperty(Array.prototype, "concat", {
|
|
value: function () {
|
|
if (void 0 === this || null === this)
|
|
throw new TypeError(
|
|
"Array.prototype.concat called on null or undefined"
|
|
);
|
|
var self = Object(this),
|
|
targets = slice.call(arguments),
|
|
outputs = [];
|
|
return (
|
|
targets.unshift(self),
|
|
targets.forEach(function (target) {
|
|
isObject(target)
|
|
? void 0 !== target[Symbol.isConcatSpreadable]
|
|
? target[Symbol.isConcatSpreadable]
|
|
? appendArray(outputs, target)
|
|
: outputs.push(target)
|
|
: isArray(target)
|
|
? appendArray(outputs, target)
|
|
: outputs.push(target)
|
|
: outputs.push(target);
|
|
}),
|
|
outputs
|
|
);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
defineProperty(Object.prototype, "toString", {
|
|
value: function () {
|
|
return void 0 === this || null === this
|
|
? objectToString.call(this)
|
|
: "string" == typeof this[Symbol.toStringTag]
|
|
? "[object " + this[Symbol.toStringTag] + "]"
|
|
: objectToString.call(this);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
defineProperty(Array.prototype, Symbol.iterator.toString(), {
|
|
value: function () {
|
|
if (void 0 === this || null === this)
|
|
throw new TypeError("Cannot convert undefined or null to object");
|
|
var self = Object(this);
|
|
return new ArrayIterator(self, 2);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
defineProperty(Array, "from", {
|
|
value: function (arrayLike, mapFn, thisArg) {
|
|
var constructor,
|
|
length,
|
|
outputs,
|
|
i = 0;
|
|
if (
|
|
((constructor = isCallable(this) ? this : Array),
|
|
void 0 === arrayLike || null === arrayLike)
|
|
)
|
|
throw new TypeError("Cannot convert undefined or null to object");
|
|
if (((arrayLike = Object(arrayLike)), void 0 === mapFn))
|
|
mapFn = simpleFunction;
|
|
else if (!isCallable(mapFn))
|
|
throw new TypeError(mapFn + " is not a function");
|
|
if (void 0 === arrayLike[Symbol.iterator]) {
|
|
if (!("number" == typeof arrayLike.length && arrayLike.length >= 0))
|
|
return ((outputs = new constructor(0)).length = 0), outputs;
|
|
for (
|
|
length = Math.floor(arrayLike.length),
|
|
(outputs = new constructor(length)).length = length;
|
|
i < length;
|
|
++i
|
|
)
|
|
outputs[i] = mapFn.call(thisArg, arrayLike[i]);
|
|
} else
|
|
((outputs = new constructor()).length = 0),
|
|
ES6.forOf(arrayLike, function (value) {
|
|
outputs.length++ ,
|
|
(outputs[outputs.length - 1] = mapFn.call(thisArg, value));
|
|
});
|
|
return outputs;
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
defineProperty(Array.prototype, "entries", {
|
|
value: function () {
|
|
if (void 0 === this || null === this)
|
|
throw new TypeError("Cannot convert undefined or null to object");
|
|
var self = Object(this);
|
|
return new ArrayIterator(self, 1);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
defineProperty(Array.prototype, "keys", {
|
|
value: function () {
|
|
if (void 0 === this || null === this)
|
|
throw new TypeError("Cannot convert undefined or null to object");
|
|
var self = Object(this);
|
|
return new ArrayIterator(self, 3);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
defineProperty(String.prototype, Symbol.iterator.toString(), {
|
|
value: function () {
|
|
if (void 0 === this || null === this)
|
|
throw new TypeError(
|
|
"String.prototype[Symbol.iterator] called on null or undefined"
|
|
);
|
|
return new StringIterator(String(this), 0);
|
|
},
|
|
writable: !0,
|
|
configurable: !0
|
|
}),
|
|
ES6
|
|
);
|
|
});
|
|
}
|
|
});
|
|
});
|