--- /dev/null
+/* Polyfill service v3.27.1
+ * For detailed credits and licence information see https://github.com/financial-times/polyfill-service.
+ *
+ * Features requested: es5
+ *
+ * - Object.defineProperty, License: CC0 (required by "es5", "Object.defineProperties", "Object.create", "_ESAbstract.CreateMethodProperty", "Array.isArray", "Array.prototype.every", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "Function.prototype.bind", "Object.freeze", "Object.getOwnPropertyDescriptor", "Object.getOwnPropertyNames", "Object.getPrototypeOf", "String.prototype.trim", "_ESAbstract.CreateDataProperty", "_ESAbstract.CreateDataPropertyOrThrow", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate")
+ * - _ESAbstract.CreateMethodProperty, License: CC0 (required by "Array.isArray", "es5", "Array.prototype.every", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "Function.prototype.bind", "Object.create", "Object.defineProperties", "Object.freeze", "Object.getOwnPropertyDescriptor", "Object.getOwnPropertyNames", "Object.getPrototypeOf", "String.prototype.trim")
+ * - _ESAbstract.IsArray, License: CC0 (required by "Array.isArray", "es5", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Array.prototype.map")
+ * - Array.isArray, License: CC0 (required by "es5")
+ * - _ESAbstract.ToObject, License: CC0 (required by "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "Object.defineProperties", "Object.create", "_ESAbstract.GetV", "_ESAbstract.GetMethod", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "String.prototype.trim", "_ESAbstract.IsConstructor", "_ESAbstract.ArraySpeciesCreate")
+ * - _ESAbstract.ToInteger, License: CC0 (required by "Array.prototype.indexOf", "es5", "Array.prototype.lastIndexOf", "_ESAbstract.ToLength", "Array.prototype.every", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some")
+ * - _ESAbstract.ToLength, License: CC0 (required by "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some")
+ * - _ESAbstract.Get, License: CC0 (required by "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "Object.defineProperties", "Object.create", "_ESAbstract.ArraySpeciesCreate", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "String.prototype.trim", "_ESAbstract.GetPrototypeFromConstructor", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct")
+ * - _ESAbstract.IsCallable, License: CC0 (required by "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "Function.prototype.bind", "_ESAbstract.GetMethod", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "String.prototype.trim", "_ESAbstract.IsConstructor", "_ESAbstract.ArraySpeciesCreate", "_ESAbstract.OrdinaryToPrimitive")
+ * - _ESAbstract.Call, License: CC0 (required by "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "String.prototype.trim", "_ESAbstract.OrdinaryToPrimitive")
+ * - _ESAbstract.GetV, License: CC0 (required by "_ESAbstract.GetMethod", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "String.prototype.trim", "_ESAbstract.IsConstructor", "_ESAbstract.ArraySpeciesCreate")
+ * - _ESAbstract.GetMethod, License: CC0 (required by "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "String.prototype.trim", "_ESAbstract.IsConstructor", "_ESAbstract.ArraySpeciesCreate")
+ * - _ESAbstract.Type, License: CC0 (required by "Object.create", "es5", "Object.defineProperties", "_ESAbstract.ToString", "Array.prototype.every", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "String.prototype.trim", "_ESAbstract.ArraySpeciesCreate", "_ESAbstract.ToPrimitive", "_ESAbstract.IsConstructor", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.GetPrototypeFromConstructor", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct")
+ * - _ESAbstract.OrdinaryToPrimitive, License: CC0 (required by "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "String.prototype.trim")
+ * - _ESAbstract.ToPrimitive, License: CC0 (required by "_ESAbstract.ToString", "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "String.prototype.trim")
+ * - _ESAbstract.ToString, License: CC0 (required by "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some", "String.prototype.trim")
+ * - _ESAbstract.HasProperty, License: CC0 (required by "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.forEach", "Array.prototype.indexOf", "Array.prototype.lastIndexOf", "Array.prototype.map", "Array.prototype.reduce", "Array.prototype.reduceRight", "Array.prototype.some")
+ * - _ESAbstract.ToBoolean, License: CC0 (required by "Array.prototype.every", "es5", "Array.prototype.filter", "Array.prototype.some")
+ * - Array.prototype.every, License: CC0 (required by "es5")
+ * - _ESAbstract.ArrayCreate, License: CC0 (required by "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "es5", "Array.prototype.map")
+ * - _ESAbstract.IsConstructor, License: CC0 (required by "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "es5", "Array.prototype.map", "_ESAbstract.Construct")
+ * - _ESAbstract.GetPrototypeFromConstructor, License: CC0 (required by "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "es5", "Array.prototype.map")
+ * - Object.keys, License: MIT (required by "es5", "Object.defineProperties", "Object.create")
+ * - Function.prototype.bind, License: MIT (required by "es5", "Object.getOwnPropertyDescriptor", "Object.defineProperties", "Object.create", "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Array.prototype.map")
+ * - Object.getOwnPropertyDescriptor, License: CC0 (required by "es5", "Object.defineProperties", "Object.create")
+ * - Object.defineProperties, License: CC0 (required by "es5", "Object.create")
+ * - Object.create, License: CC0 (required by "es5", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Array.prototype.map")
+ * - Object.getPrototypeOf, License: CC0 (required by "es5", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Array.prototype.map")
+ * - _ESAbstract.OrdinaryCreateFromConstructor, License: CC0 (required by "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "es5", "Array.prototype.map")
+ * - _ESAbstract.Construct, License: CC0 (required by "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "es5", "Array.prototype.map")
+ * - _ESAbstract.ArraySpeciesCreate, License: CC0 (required by "Array.prototype.filter", "es5", "Array.prototype.map")
+ * - _ESAbstract.CreateDataProperty, License: CC0 (required by "_ESAbstract.CreateDataPropertyOrThrow", "Array.prototype.filter", "es5", "Array.prototype.map")
+ * - _ESAbstract.CreateDataPropertyOrThrow, License: CC0 (required by "Array.prototype.filter", "es5", "Array.prototype.map")
+ * - Array.prototype.filter, License: CC0 (required by "es5")
+ * - Array.prototype.forEach, License: CC0 (required by "es5")
+ * - Array.prototype.indexOf, License: CC0 (required by "es5")
+ * - Array.prototype.lastIndexOf, License: CC0 (required by "es5")
+ * - Array.prototype.map, License: CC0 (required by "es5")
+ * - Array.prototype.reduce, License: CC0 (required by "es5")
+ * - Array.prototype.reduceRight, License: CC0 (required by "es5")
+ * - Array.prototype.some, License: CC0 (required by "es5")
+ * - Date.now, License: CC0 (required by "es5")
+ * - Date.prototype.toISOString, License: CC0 (required by "es5")
+ * - Object.freeze, License: CC0 (required by "es5")
+ * - Object.getOwnPropertyNames, License: CC0 (required by "es5")
+ * - _ESAbstract.RequireObjectCoercible, License: CC0 (required by "String.prototype.trim", "es5")
+ * - String.prototype.trim, License: CC0 (required by "es5") */
+
+(function(undefined) {
+if (!(// In IE8, defineProperty could only act on DOM elements, so full support
+// for the feature requires the ability to set a property on an arbitrary object
+'defineProperty' in Object && (function() {
+ try {
+ var a = {};
+ Object.defineProperty(a, 'test', {value:42});
+ return true;
+ } catch(e) {
+ return false
+ }
+}()))) {
+
+// Object.defineProperty
+(function (nativeDefineProperty) {
+
+ var supportsAccessors = Object.prototype.hasOwnProperty('__defineGetter__');
+ var ERR_ACCESSORS_NOT_SUPPORTED = 'Getters & setters cannot be defined on this javascript engine';
+ var ERR_VALUE_ACCESSORS = 'A property cannot both have accessors and be writable or have a value';
+
+ // Polyfill.io - This does not use CreateMethodProperty because our CreateMethodProperty function uses Object.defineProperty.
+ Object['defineProperty'] = function defineProperty(object, property, descriptor) {
+
+ // Where native support exists, assume it
+ if (nativeDefineProperty && (object === window || object === document || object === Element.prototype || object instanceof Element)) {
+ return nativeDefineProperty(object, property, descriptor);
+ }
+
+ if (object === null || !(object instanceof Object || typeof object === 'object')) {
+ throw new TypeError('Object.defineProperty called on non-object');
+ }
+
+ if (!(descriptor instanceof Object)) {
+ throw new TypeError('Property description must be an object');
+ }
+
+ var propertyString = String(property);
+ var hasValueOrWritable = 'value' in descriptor || 'writable' in descriptor;
+ var getterType = 'get' in descriptor && typeof descriptor.get;
+ var setterType = 'set' in descriptor && typeof descriptor.set;
+
+ // handle descriptor.get
+ if (getterType) {
+ if (getterType !== 'function') {
+ throw new TypeError('Getter must be a function');
+ }
+ if (!supportsAccessors) {
+ throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
+ }
+ if (hasValueOrWritable) {
+ throw new TypeError(ERR_VALUE_ACCESSORS);
+ }
+ Object.__defineGetter__.call(object, propertyString, descriptor.get);
+ } else {
+ object[propertyString] = descriptor.value;
+ }
+
+ // handle descriptor.set
+ if (setterType) {
+ if (setterType !== 'function') {
+ throw new TypeError('Setter must be a function');
+ }
+ if (!supportsAccessors) {
+ throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
+ }
+ if (hasValueOrWritable) {
+ throw new TypeError(ERR_VALUE_ACCESSORS);
+ }
+ Object.__defineSetter__.call(object, propertyString, descriptor.set);
+ }
+
+ // OK to define value unconditionally - if a getter has been specified as well, an error would be thrown above
+ if ('value' in descriptor) {
+ object[propertyString] = descriptor.value;
+ }
+
+ return object;
+ };
+}(Object.defineProperty));
+
+}
+
+
+// _ESAbstract.CreateMethodProperty
+// 7.3.5. CreateMethodProperty ( O, P, V )
+function CreateMethodProperty(O, P, V) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: IsPropertyKey(P) is true.
+ // 3. Let newDesc be the PropertyDescriptor{[[Value]]: V, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true}.
+ var newDesc = {
+ value: V,
+ writable: true,
+ enumerable: false,
+ configurable: true
+ };
+ // 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
+ Object.defineProperty(O, P, newDesc);
+}
+
+// _ESAbstract.IsArray
+// 7.2.2. IsArray ( argument )
+function IsArray(argument) { // eslint-disable-line no-unused-vars
+ // 1. If Type(argument) is not Object, return false.
+ // 2. If argument is an Array exotic object, return true.
+ // 3. If argument is a Proxy exotic object, then
+ // a. If argument.[[ProxyHandler]] is null, throw a TypeError exception.
+ // b. Let target be argument.[[ProxyTarget]].
+ // c. Return ? IsArray(target).
+ // 4. Return false.
+
+ // Polyfill.io - We can skip all the above steps and check the string returned from Object.prototype.toString().
+ return Object.prototype.toString.call(argument) === '[object Array]';
+}
+if (!('isArray' in Array)) {
+
+// Array.isArray
+/* global CreateMethodProperty, IsArray */
+// 22.1.2.2. Array.isArray ( arg )
+CreateMethodProperty(Array, 'isArray', function isArray(arg) {
+ // 1. Return ? IsArray(arg).
+ return IsArray(arg);
+});
+
+}
+
+
+// _ESAbstract.ToObject
+// 7.1.13 ToObject ( argument )
+// The abstract operation ToObject converts argument to a value of type Object according to Table 12:
+// Table 12: ToObject Conversions
+/*
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Argument Type | Result |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Undefined | Throw a TypeError exception. |
+| Null | Throw a TypeError exception. |
+| Boolean | Return a new Boolean object whose [[BooleanData]] internal slot is set to argument. See 19.3 for a description of Boolean objects. |
+| Number | Return a new Number object whose [[NumberData]] internal slot is set to argument. See 20.1 for a description of Number objects. |
+| String | Return a new String object whose [[StringData]] internal slot is set to argument. See 21.1 for a description of String objects. |
+| Symbol | Return a new Symbol object whose [[SymbolData]] internal slot is set to argument. See 19.4 for a description of Symbol objects. |
+| Object | Return argument. |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+*/
+function ToObject(argument) { // eslint-disable-line no-unused-vars
+ if (argument === null || argument === undefined) {
+ throw TypeError();
+ }
+ return Object(argument);
+}
+
+// _ESAbstract.ToInteger
+// 7.1.4. ToInteger ( argument )
+function ToInteger(argument) { // eslint-disable-line no-unused-vars
+ // 1. Let number be ? ToNumber(argument).
+ var number = Number(argument);
+ // 2. If number is NaN, return +0.
+ if (isNaN(number)) {
+ return 0;
+ }
+ // 3. If number is +0, -0, +∞, or -∞, return number.
+ if (1/number === Infinity || 1/number === -Infinity || number === Infinity || number === -Infinity) {
+ return number;
+ }
+ // 4. Return the number value that is the same sign as number and whose magnitude is floor(abs(number)).
+ return ((number < 0) ? -1 : 1) * Math.floor(Math.abs(number));
+}
+
+// _ESAbstract.ToLength
+/* global ToInteger */
+// 7.1.15. ToLength ( argument )
+function ToLength(argument) { // eslint-disable-line no-unused-vars
+ // 1. Let len be ? ToInteger(argument).
+ var len = ToInteger(argument);
+ // 2. If len ≤ +0, return +0.
+ if (len <= 0) {
+ return 0;
+ }
+ // 3. Return min(len, 253-1).
+ return Math.min(len, Math.pow(2, 53) -1);
+}
+
+// _ESAbstract.Get
+// 7.3.1. Get ( O, P )
+function Get(O, P) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: IsPropertyKey(P) is true.
+ // 3. Return ? O.[[Get]](P, O).
+ return O[P];
+}
+
+// _ESAbstract.IsCallable
+// 7.2.3. IsCallable ( argument )
+function IsCallable(argument) { // eslint-disable-line no-unused-vars
+ // 1. If Type(argument) is not Object, return false.
+ // 2. If argument has a [[Call]] internal method, return true.
+ // 3. Return false.
+
+ // Polyfill.io - Only function objects have a [[Call]] internal method. This means we can simplify this function to check that the argument has a type of function.
+ return typeof argument === 'function';
+}
+
+// _ESAbstract.Call
+/* global IsCallable */
+// 7.3.12. Call ( F, V [ , argumentsList ] )
+function Call(F, V /* [, argumentsList] */) { // eslint-disable-line no-unused-vars
+ // 1. If argumentsList is not present, set argumentsList to a new empty List.
+ var argumentsList = arguments.length > 2 ? arguments[2] : [];
+ // 2. If IsCallable(F) is false, throw a TypeError exception.
+ if (IsCallable(F) === false) {
+ throw new TypeError(Object.prototype.toString.call(F) + 'is not a function.');
+ }
+ // 3. Return ? F.[[Call]](V, argumentsList).
+ return F.apply(V, argumentsList);
+}
+
+// _ESAbstract.GetV
+/* global ToObject */
+// 7.3.2 GetV (V, P)
+function GetV(v, p) { // eslint-disable-line no-unused-vars
+ // 1. Assert: IsPropertyKey(P) is true.
+ // 2. Let O be ? ToObject(V).
+ var o = ToObject(v);
+ // 3. Return ? O.[[Get]](P, V).
+ return o[p];
+}
+
+// _ESAbstract.GetMethod
+/* global GetV, IsCallable */
+// 7.3.9. GetMethod ( V, P )
+function GetMethod(V, P) { // eslint-disable-line no-unused-vars
+ // 1. Assert: IsPropertyKey(P) is true.
+ // 2. Let func be ? GetV(V, P).
+ var func = GetV(V, P);
+ // 3. If func is either undefined or null, return undefined.
+ if (func === null || func === undefined) {
+ return undefined;
+ }
+ // 4. If IsCallable(func) is false, throw a TypeError exception.
+ if (IsCallable(func) === false) {
+ throw new TypeError('Method not callable: ' + P);
+ }
+ // 5. Return func.
+ return func;
+}
+
+// _ESAbstract.Type
+// "Type(x)" is used as shorthand for "the type of x"...
+function Type(x) { // eslint-disable-line no-unused-vars
+ switch (typeof x) {
+ case 'undefined':
+ return 'undefined';
+ case 'boolean':
+ return 'boolean';
+ case 'number':
+ return 'number';
+ case 'string':
+ return 'string';
+ case 'symbol':
+ return 'symbol';
+ default:
+ // typeof null is 'object'
+ if (x === null) return 'null';
+ // Polyfill.io - This is here because a Symbol polyfill will have a typeof `object`.
+ if ('Symbol' in this && x instanceof this.Symbol) return 'symbol';
+ return 'object';
+ }
+}
+
+// _ESAbstract.OrdinaryToPrimitive
+/* global Get, IsCallable, Call, Type */
+// 7.1.1.1. OrdinaryToPrimitive ( O, hint )
+function OrdinaryToPrimitive(O, hint) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: Type(hint) is String and its value is either "string" or "number".
+ // 3. If hint is "string", then
+ if (hint === 'string') {
+ // a. Let methodNames be « "toString", "valueOf" ».
+ var methodNames = ['toString', 'valueOf'];
+ // 4. Else,
+ } else {
+ // a. Let methodNames be « "valueOf", "toString" ».
+ methodNames = ['valueOf', 'toString'];
+ }
+ // 5. For each name in methodNames in List order, do
+ for (var i = 0; i < methodNames.length; ++i) {
+ var name = methodNames[i];
+ // a. Let method be ? Get(O, name).
+ var method = Get(O, name);
+ // b. If IsCallable(method) is true, then
+ if (IsCallable(method)) {
+ // i. Let result be ? Call(method, O).
+ var result = Call(method, O);
+ // ii. If Type(result) is not Object, return result.
+ if (Type(result) !== 'object') {
+ return result;
+ }
+ }
+ }
+ // 6. Throw a TypeError exception.
+ throw new TypeError('Cannot convert to primitive.');
+}
+
+// _ESAbstract.ToPrimitive
+/* global Type, GetMethod, Call, OrdinaryToPrimitive */
+// 7.1.1. ToPrimitive ( input [ , PreferredType ] )
+function ToPrimitive(input /* [, PreferredType] */) { // eslint-disable-line no-unused-vars
+ var PreferredType = arguments.length > 1 ? arguments[1] : undefined;
+ // 1. Assert: input is an ECMAScript language value.
+ // 2. If Type(input) is Object, then
+ if (Type(input) === 'object') {
+ // a. If PreferredType is not present, let hint be "default".
+ if (arguments.length < 2) {
+ var hint = 'default';
+ // b. Else if PreferredType is hint String, let hint be "string".
+ } else if (PreferredType === String) {
+ hint = 'string';
+ // c. Else PreferredType is hint Number, let hint be "number".
+ } else if (PreferredType === Number) {
+ hint = 'number';
+ }
+ // d. Let exoticToPrim be ? GetMethod(input, @@toPrimitive).
+ var exoticToPrim = typeof this.Symbol === 'function' && typeof this.Symbol.toPrimitive === 'symbol' ? GetMethod(input, this.Symbol.toPrimitive) : undefined;
+ // e. If exoticToPrim is not undefined, then
+ if (exoticToPrim !== undefined) {
+ // i. Let result be ? Call(exoticToPrim, input, « hint »).
+ var result = Call(exoticToPrim, input, [hint]);
+ // ii. If Type(result) is not Object, return result.
+ if (Type(result) !== 'object') {
+ return result;
+ }
+ // iii. Throw a TypeError exception.
+ throw new TypeError('Cannot convert exotic object to primitive.');
+ }
+ // f. If hint is "default", set hint to "number".
+ if (hint === 'default') {
+ hint = 'number';
+ }
+ // g. Return ? OrdinaryToPrimitive(input, hint).
+ return OrdinaryToPrimitive(input, hint);
+ }
+ // 3. Return input
+ return input;
+}
+
+// _ESAbstract.ToString
+/* global Type, ToPrimitive */
+// 7.1.12. ToString ( argument )
+// The abstract operation ToString converts argument to a value of type String according to Table 11:
+// Table 11: ToString Conversions
+/*
+|---------------|--------------------------------------------------------|
+| Argument Type | Result |
+|---------------|--------------------------------------------------------|
+| Undefined | Return "undefined". |
+|---------------|--------------------------------------------------------|
+| Null | Return "null". |
+|---------------|--------------------------------------------------------|
+| Boolean | If argument is true, return "true". |
+| | If argument is false, return "false". |
+|---------------|--------------------------------------------------------|
+| Number | Return NumberToString(argument). |
+|---------------|--------------------------------------------------------|
+| String | Return argument. |
+|---------------|--------------------------------------------------------|
+| Symbol | Throw a TypeError exception. |
+|---------------|--------------------------------------------------------|
+| Object | Apply the following steps: |
+| | Let primValue be ? ToPrimitive(argument, hint String). |
+| | Return ? ToString(primValue). |
+|---------------|--------------------------------------------------------|
+*/
+function ToString(argument) { // eslint-disable-line no-unused-vars
+ switch(Type(argument)) {
+ case 'symbol':
+ throw new TypeError('Cannot convert a Symbol value to a string');
+ break;
+ case 'object':
+ var primValue = ToPrimitive(argument, 'string');
+ return ToString(primValue);
+ default:
+ return String(argument);
+ }
+}
+
+// _ESAbstract.HasProperty
+// 7.3.10. HasProperty ( O, P )
+function HasProperty(O, P) { // eslint-disable-line no-unused-vars
+ // Assert: Type(O) is Object.
+ // Assert: IsPropertyKey(P) is true.
+ // Return ? O.[[HasProperty]](P).
+ return P in O;
+}
+
+// _ESAbstract.ToBoolean
+// 7.1.2. ToBoolean ( argument )
+// The abstract operation ToBoolean converts argument to a value of type Boolean according to Table 9:
+/*
+--------------------------------------------------------------------------------------------------------------
+| Argument Type | Result |
+--------------------------------------------------------------------------------------------------------------
+| Undefined | Return false. |
+| Null | Return false. |
+| Boolean | Return argument. |
+| Number | If argument is +0, -0, or NaN, return false; otherwise return true. |
+| String | If argument is the empty String (its length is zero), return false; otherwise return true. |
+| Symbol | Return true. |
+| Object | Return true. |
+--------------------------------------------------------------------------------------------------------------
+*/
+function ToBoolean(argument) { // eslint-disable-line no-unused-vars
+ return Boolean(argument);
+}
+if (!('every' in Array.prototype)) {
+
+// Array.prototype.every
+/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToBoolean, ToLength, ToObject, ToString */
+// 22.1.3.5. Array.prototype.every ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'every', function every(callbackfn /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let k be 0.
+ var k = 0;
+ // 6. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(O, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(O, Pk);
+ // ii. Let testResult be ToBoolean(? Call(callbackfn, T, « kValue, k, O »)).
+ var testResult = ToBoolean(Call(callbackfn, T, [kValue, k, O]));
+ // iii. If testResult is false, return false.
+ if (testResult === false) {
+ return false;
+ }
+ }
+ // d. Increase k by 1.
+ var k = k + 1;
+ }
+ // 7. Return true.
+ return true;
+});
+
+}
+
+
+// _ESAbstract.ArrayCreate
+// 9.4.2.2. ArrayCreate ( length [ , proto ] )
+function ArrayCreate(length /* [, proto] */) { // eslint-disable-line no-unused-vars
+ // 1. Assert: length is an integer Number ≥ 0.
+ // 2. If length is -0, set length to +0.
+ if (1 / length === -Infinity) {
+ length = 0;
+ }
+ // 3. If length>2^32-1, throw a RangeError exception.
+ if (length > (Math.pow(2, 32) - 1)) {
+ throw new RangeError('Invalid array length');
+ }
+ // 4. If proto is not present, set proto to the intrinsic object %ArrayPrototype%.
+ // 5. Let A be a newly created Array exotic object.
+ var A = [];
+ // 6. Set A's essential internal methods except for [[DefineOwnProperty]] to the default ordinary object definitions specified in 9.1.
+ // 7. Set A.[[DefineOwnProperty]] as specified in 9.4.2.1.
+ // 8. Set A.[[Prototype]] to proto.
+ // 9. Set A.[[Extensible]] to true.
+ // 10. Perform ! OrdinaryDefineOwnProperty(A, "length", PropertyDescriptor{[[Value]]: length, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false}).
+ A.length = length;
+ // 11. Return A.
+ return A;
+}
+
+// _ESAbstract.IsConstructor
+/* global Type */
+// 7.2.4. IsConstructor ( argument )
+function IsConstructor(argument) { // eslint-disable-line no-unused-vars
+ // 1. If Type(argument) is not Object, return false.
+ if (Type(argument) !== 'object') {
+ return false;
+ }
+ // 2. If argument has a [[Construct]] internal method, return true.
+ // 3. Return false.
+
+ // Polyfill.io - `new argument` is the only way to truly test if a function is a constructor.
+ // We choose to not use`new argument` because the argument could have side effects when called.
+ // Instead we check to see if the argument is a function and if it has a prototype.
+ // Arrow functions do not have a [[Construct]] internal method, nor do they have a prototype.
+ return typeof argument === 'function' && !!argument.prototype;
+}
+
+// _ESAbstract.GetPrototypeFromConstructor
+/* global Get, Type */
+// 9.1.14. GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
+function GetPrototypeFromConstructor(constructor, intrinsicDefaultProto) { // eslint-disable-line no-unused-vars
+ // 1. Assert: intrinsicDefaultProto is a String value that is this specification's name of an intrinsic object. The corresponding object must be an intrinsic that is intended to be used as the [[Prototype]] value of an object.
+ // 2. Assert: IsCallable(constructor) is true.
+ // 3. Let proto be ? Get(constructor, "prototype").
+ var proto = Get(constructor, "prototype");
+ // 4. If Type(proto) is not Object, then
+ if (Type(proto) !== 'object') {
+ // a. Let realm be ? GetFunctionRealm(constructor).
+ // b. Set proto to realm's intrinsic object named intrinsicDefaultProto.
+ proto = intrinsicDefaultProto;
+ }
+ // 5. Return proto.
+ return proto;
+}
+if (!('keys' in Object && (function () {
+ // Safari 5.0 bug where Object.keys doesn't work with arguments
+ return (Object.keys(arguments)).length === 2;
+}(1, 2)) && (function () {
+ try {
+ // In ES6 Object.keys works on all object except `null` and `undefined`.
+ Object.keys('');
+ return true;
+ } catch (e) {
+ return false;
+ }
+}()))) {
+
+// Object.keys
+Object.keys = (function() {
+ 'use strict';
+
+ // modified from https://github.com/es-shims/object-keys
+
+ var has = Object.prototype.hasOwnProperty;
+ var toStr = Object.prototype.toString;
+ var isEnumerable = Object.prototype.propertyIsEnumerable;
+ var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
+ var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
+ var dontEnums = [
+ 'toString',
+ 'toLocaleString',
+ 'valueOf',
+ 'hasOwnProperty',
+ 'isPrototypeOf',
+ 'propertyIsEnumerable',
+ 'constructor'
+ ];
+ var equalsConstructorPrototype = function (o) {
+ var ctor = o.constructor;
+ return ctor && ctor.prototype === o;
+ };
+ var excludedKeys = {
+ $console: true,
+ $external: true,
+ $frame: true,
+ $frameElement: true,
+ $frames: true,
+ $innerHeight: true,
+ $innerWidth: true,
+ $outerHeight: true,
+ $outerWidth: true,
+ $pageXOffset: true,
+ $pageYOffset: true,
+ $parent: true,
+ $scrollLeft: true,
+ $scrollTop: true,
+ $scrollX: true,
+ $scrollY: true,
+ $self: true,
+ $webkitIndexedDB: true,
+ $webkitStorageInfo: true,
+ $window: true
+ };
+ var hasAutomationEqualityBug = (function () {
+ /* global window */
+ if (typeof window === 'undefined') { return false; }
+ for (var k in window) {
+ try {
+ if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
+ try {
+ equalsConstructorPrototype(window[k]);
+ } catch (e) {
+ return true;
+ }
+ }
+ } catch (e) {
+ return true;
+ }
+ }
+ return false;
+ }());
+ var equalsConstructorPrototypeIfNotBuggy = function (o) {
+ /* global window */
+ if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
+ return equalsConstructorPrototype(o);
+ }
+ try {
+ return equalsConstructorPrototype(o);
+ } catch (e) {
+ return false;
+ }
+ };
+
+ function isArgumentsObject(value) {
+ var str = toStr.call(value);
+ var isArgs = str === '[object Arguments]';
+ if (!isArgs) {
+ isArgs = str !== '[object Array]' &&
+ value !== null &&
+ typeof value === 'object' &&
+ typeof value.length === 'number' &&
+ value.length >= 0 &&
+ toStr.call(value.callee) === '[object Function]';
+ }
+ return isArgs;
+ }
+
+ return function keys(object) {
+ var isFunction = toStr.call(object) === '[object Function]';
+ var isArguments = isArgumentsObject(object);
+ var isString = toStr.call(object) === '[object String]';
+ var theKeys = [];
+
+ if (object === undefined || object === null) {
+ throw new TypeError('Cannot convert undefined or null to object');
+ }
+
+ var skipProto = hasProtoEnumBug && isFunction;
+ if (isString && object.length > 0 && !has.call(object, 0)) {
+ for (var i = 0; i < object.length; ++i) {
+ theKeys.push(String(i));
+ }
+ }
+
+ if (isArguments && object.length > 0) {
+ for (var j = 0; j < object.length; ++j) {
+ theKeys.push(String(j));
+ }
+ } else {
+ for (var name in object) {
+ if (!(skipProto && name === 'prototype') && has.call(object, name)) {
+ theKeys.push(String(name));
+ }
+ }
+ }
+
+ if (hasDontEnumBug) {
+ var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
+
+ for (var k = 0; k < dontEnums.length; ++k) {
+ if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
+ theKeys.push(dontEnums[k]);
+ }
+ }
+ }
+ return theKeys;
+ };
+}());
+
+}
+
+if (!('bind' in Function.prototype)) {
+
+// Function.prototype.bind
+/* global CreateMethodProperty, IsCallable */
+// 19.2.3.2. Function.prototype.bind ( thisArg, ...args )
+// https://github.com/es-shims/es5-shim/blob/d6d7ff1b131c7ba14c798cafc598bb6780d37d3b/es5-shim.js#L182
+CreateMethodProperty(Function.prototype, 'bind', function bind(that) { // .length is 1
+ // add necessary es5-shim utilities
+ var $Array = Array;
+ var $Object = Object;
+ var ArrayPrototype = $Array.prototype;
+ var Empty = function Empty() { };
+ var array_slice = ArrayPrototype.slice;
+ var array_concat = ArrayPrototype.concat;
+ var array_push = ArrayPrototype.push;
+ var max = Math.max;
+ // /add necessary es5-shim utilities
+
+ // 1. Let Target be the this value.
+ var target = this;
+ // 2. If IsCallable(Target) is false, throw a TypeError exception.
+ if (!IsCallable(target)) {
+ throw new TypeError('Function.prototype.bind called on incompatible ' + target);
+ }
+ // 3. Let A be a new (possibly empty) internal list of all of the
+ // argument values provided after thisArg (arg1, arg2 etc), in order.
+ // XXX slicedArgs will stand in for "A" if used
+ var args = array_slice.call(arguments, 1); // for normal call
+ // 4. Let F be a new native ECMAScript object.
+ // 11. Set the [[Prototype]] internal property of F to the standard
+ // built-in Function prototype object as specified in 15.3.3.1.
+ // 12. Set the [[Call]] internal property of F as described in
+ // 15.3.4.5.1.
+ // 13. Set the [[Construct]] internal property of F as described in
+ // 15.3.4.5.2.
+ // 14. Set the [[HasInstance]] internal property of F as described in
+ // 15.3.4.5.3.
+ var bound;
+ var binder = function () {
+
+ if (this instanceof bound) {
+ // 15.3.4.5.2 [[Construct]]
+ // When the [[Construct]] internal method of a function object,
+ // F that was created using the bind function is called with a
+ // list of arguments ExtraArgs, the following steps are taken:
+ // 1. Let target be the value of F's [[TargetFunction]]
+ // internal property.
+ // 2. If target has no [[Construct]] internal method, a
+ // TypeError exception is thrown.
+ // 3. Let boundArgs be the value of F's [[BoundArgs]] internal
+ // property.
+ // 4. Let args be a new list containing the same values as the
+ // list boundArgs in the same order followed by the same
+ // values as the list ExtraArgs in the same order.
+ // 5. Return the result of calling the [[Construct]] internal
+ // method of target providing args as the arguments.
+
+ var result = target.apply(
+ this,
+ array_concat.call(args, array_slice.call(arguments))
+ );
+ if ($Object(result) === result) {
+ return result;
+ }
+ return this;
+
+ } else {
+ // 15.3.4.5.1 [[Call]]
+ // When the [[Call]] internal method of a function object, F,
+ // which was created using the bind function is called with a
+ // this value and a list of arguments ExtraArgs, the following
+ // steps are taken:
+ // 1. Let boundArgs be the value of F's [[BoundArgs]] internal
+ // property.
+ // 2. Let boundThis be the value of F's [[BoundThis]] internal
+ // property.
+ // 3. Let target be the value of F's [[TargetFunction]] internal
+ // property.
+ // 4. Let args be a new list containing the same values as the
+ // list boundArgs in the same order followed by the same
+ // values as the list ExtraArgs in the same order.
+ // 5. Return the result of calling the [[Call]] internal method
+ // of target providing boundThis as the this value and
+ // providing args as the arguments.
+
+ // equiv: target.call(this, ...boundArgs, ...args)
+ return target.apply(
+ that,
+ array_concat.call(args, array_slice.call(arguments))
+ );
+
+ }
+
+ };
+
+ // 15. If the [[Class]] internal property of Target is "Function", then
+ // a. Let L be the length property of Target minus the length of A.
+ // b. Set the length own property of F to either 0 or L, whichever is
+ // larger.
+ // 16. Else set the length own property of F to 0.
+
+ var boundLength = max(0, target.length - args.length);
+
+ // 17. Set the attributes of the length own property of F to the values
+ // specified in 15.3.5.1.
+ var boundArgs = [];
+ for (var i = 0; i < boundLength; i++) {
+ array_push.call(boundArgs, '$' + i);
+ }
+
+ // XXX Build a dynamic function with desired amount of arguments is the only
+ // way to set the length property of a function.
+ // In environments where Content Security Policies enabled (Chrome extensions,
+ // for ex.) all use of eval or Function costructor throws an exception.
+ // However in all of these environments Function.prototype.bind exists
+ // and so this code will never be executed.
+ bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this, arguments); }')(binder);
+
+ if (target.prototype) {
+ Empty.prototype = target.prototype;
+ bound.prototype = new Empty();
+ // Clean up dangling references.
+ Empty.prototype = null;
+ }
+
+ // TODO
+ // 18. Set the [[Extensible]] internal property of F to true.
+
+ // TODO
+ // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
+ // 20. Call the [[DefineOwnProperty]] internal method of F with
+ // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
+ // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
+ // false.
+ // 21. Call the [[DefineOwnProperty]] internal method of F with
+ // arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
+ // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
+ // and false.
+
+ // TODO
+ // NOTE Function objects created using Function.prototype.bind do not
+ // have a prototype property or the [[Code]], [[FormalParameters]], and
+ // [[Scope]] internal properties.
+ // XXX can't delete prototype in pure-js.
+
+ // 22. Return F.
+ return bound;
+});
+
+}
+
+if (!('getOwnPropertyDescriptor' in Object && typeof Object.getOwnPropertyDescriptor === 'function' && (function() {
+ try {
+ var object = {};
+ object.test = 0;
+ return Object.getOwnPropertyDescriptor(
+ object,
+ "test"
+ ).value === 0;
+ } catch (exception) {
+ return false
+ }
+}()))) {
+
+// Object.getOwnPropertyDescriptor
+/* global CreateMethodProperty */
+(function () {
+ var call = Function.prototype.call;
+ var prototypeOfObject = Object.prototype;
+ var owns = call.bind(prototypeOfObject.hasOwnProperty);
+
+ var lookupGetter;
+ var lookupSetter;
+ var supportsAccessors;
+ if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
+ lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
+ lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
+ }
+ function doesGetOwnPropertyDescriptorWork(object) {
+ try {
+ object.sentinel = 0;
+ return Object.getOwnPropertyDescriptor(
+ object,
+ "sentinel"
+ ).value === 0;
+ } catch (exception) {
+ // returns falsy
+ }
+ }
+ // check whether getOwnPropertyDescriptor works if it's given. Otherwise,
+ // shim partially.
+ if (Object.defineProperty) {
+ var getOwnPropertyDescriptorWorksOnObject =
+ doesGetOwnPropertyDescriptorWork({});
+ var getOwnPropertyDescriptorWorksOnDom = typeof document == "undefined" ||
+ doesGetOwnPropertyDescriptorWork(document.createElement("div"));
+ if (!getOwnPropertyDescriptorWorksOnDom ||
+ !getOwnPropertyDescriptorWorksOnObject
+ ) {
+ var getOwnPropertyDescriptorFallback = Object.getOwnPropertyDescriptor;
+ }
+ }
+
+ if (!Object.getOwnPropertyDescriptor || getOwnPropertyDescriptorFallback) {
+ var ERR_NON_OBJECT = "Object.getOwnPropertyDescriptor called on a non-object: ";
+
+ CreateMethodProperty(Object, 'getOwnPropertyDescriptor', function getOwnPropertyDescriptor(object, property) {
+ if ((typeof object != "object" && typeof object != "function") || object === null) {
+ throw new TypeError(ERR_NON_OBJECT + object);
+ }
+
+ // make a valiant attempt to use the real getOwnPropertyDescriptor
+ // for I8's DOM elements.
+ if (getOwnPropertyDescriptorFallback) {
+ try {
+ return getOwnPropertyDescriptorFallback.call(Object, object, property);
+ } catch (exception) {
+ // try the shim if the real one doesn't work
+ }
+ }
+
+ // If object does not owns property return undefined immediately.
+ if (!owns(object, property)) {
+ return;
+ }
+
+ // If object has a property then it's for sure both `enumerable` and
+ // `configurable`.
+ var descriptor = { enumerable: true, configurable: true };
+
+ // If JS engine supports accessor properties then property may be a
+ // getter or setter.
+ if (supportsAccessors) {
+ // Unfortunately `__lookupGetter__` will return a getter even
+ // if object has own non getter property along with a same named
+ // inherited getter. To avoid misbehavior we temporary remove
+ // `__proto__` so that `__lookupGetter__` will return getter only
+ // if it's owned by an object.
+ var prototype = object.__proto__;
+ object.__proto__ = prototypeOfObject;
+
+ var getter = lookupGetter(object, property);
+ var setter = lookupSetter(object, property);
+
+ // Once we have getter and setter we can put values back.
+ object.__proto__ = prototype;
+
+ if (getter || setter) {
+ if (getter) {
+ descriptor.get = getter;
+ }
+ if (setter) {
+ descriptor.set = setter;
+ }
+ // If it was accessor property we're done and return here
+ // in order to avoid adding `value` to the descriptor.
+ return descriptor;
+ }
+ }
+
+ // If we got this far we know that object has an own property that is
+ // not an accessor so we set it as a value and return descriptor.
+ descriptor.value = object[property];
+ descriptor.writable = true;
+ return descriptor;
+ });
+ }
+}());
+
+}
+
+if (!('defineProperties' in Object)) {
+
+// Object.defineProperties
+/* global CreateMethodProperty, Get, ToObject, Type */
+// 19.1.2.3. Object.defineProperties ( O, Properties )
+CreateMethodProperty(Object, 'defineProperties', function defineProperties(O, Properties) {
+ // 1. If Type(O) is not Object, throw a TypeError exception.
+ if (Type(O) !== 'object') {
+ throw new TypeError('Object.defineProperties called on non-object');
+ }
+ // 2. Let props be ? ToObject(Properties).
+ var props = ToObject(Properties);
+ // 3. Let keys be ? props.[[OwnPropertyKeys]]().
+ /*
+ Polyfill.io - This step in our polyfill is not complying with the specification.
+ [[OwnPropertyKeys]] is meant to return ALL keys, including non-enumerable and symbols.
+ TODO: When we have Reflect.ownKeys, use that instead as it is the userland equivalent of [[OwnPropertyKeys]].
+ */
+ var keys = Object.keys(props);
+ // 4. Let descriptors be a new empty List.
+ var descriptors = [];
+ // 5. For each element nextKey of keys in List order, do
+ for (var i = 0; i < keys.length; i++) {
+ var nextKey = keys[i];
+ // a. Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+ var propDesc = Object.getOwnPropertyDescriptor(props, nextKey);
+ // b. If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+ if (propDesc !== undefined && propDesc.enumerable) {
+ // i. Let descObj be ? Get(props, nextKey).
+ var descObj = Get(props, nextKey);
+ // ii. Let desc be ? ToPropertyDescriptor(descObj).
+ // Polyfill.io - We skip this step because Object.defineProperty deals with it.
+ // TODO: Implement this step?
+ var desc = descObj;
+ // iii. Append the pair (a two element List) consisting of nextKey and desc to the end of descriptors.
+ descriptors.push([nextKey, desc]);
+ }
+ }
+ // 6. For each pair from descriptors in list order, do
+ for (var i = 0; i < descriptors.length; i++){
+ // a. Let P be the first element of pair.
+ var P = descriptors[i][0];
+ // b. Let desc be the second element of pair.
+ var desc = descriptors[i][1];
+ // c. Perform ? DefinePropertyOrThrow(O, P, desc).
+ Object.defineProperty(O, P, desc);
+ }
+ // 7. Return O.
+ return O;
+});
+
+}
+
+if (!('create' in Object)) {
+
+// Object.create
+/* global CreateMethodProperty, Type */
+CreateMethodProperty(Object, 'create', function create(O, properties) {
+ // 1. If Type(O) is neither Object nor Null, throw a TypeError exception.
+ if (Type(O) !== 'object' && Type(O) !== 'null') {
+ throw new TypeError('Object prototype may only be an Object or null');
+ }
+ // 2. Let obj be ObjectCreate(O).
+ var obj = new Function('e', 'function Object() {}Object.prototype=e;return new Object')(O);
+
+ obj.constructor.prototype = O;
+
+ // 3. If Properties is not undefined, then
+ if (1 in arguments) {
+ // a. Return ? ObjectDefineProperties(obj, Properties).
+ return Object.defineProperties(obj, properties);
+ }
+
+ return obj;
+});
+
+}
+
+if (!('getPrototypeOf' in Object)) {
+
+// Object.getPrototypeOf
+/* global CreateMethodProperty */
+// Based on: https://github.com/es-shims/es5-shim/blob/master/es5-sham.js
+
+// https://github.com/es-shims/es5-shim/issues#issue/2
+// http://ejohn.org/blog/objectgetprototypeof/
+// recommended by fschaefer on github
+//
+// sure, and webreflection says ^_^
+// ... this will nerever possibly return null
+// ... Opera Mini breaks here with infinite loops
+CreateMethodProperty(Object, 'getPrototypeOf', function getPrototypeOf(object) {
+ if (object !== Object(object)) {
+ throw new TypeError('Object.getPrototypeOf called on non-object');
+ }
+ var proto = object.__proto__;
+ if (proto || proto === null) {
+ return proto;
+ } else if (typeof object.constructor == 'function' && object instanceof object.constructor) {
+ return object.constructor.prototype;
+ } else if (object instanceof Object) {
+ return Object.prototype;
+ } else {
+ // Correctly return null for Objects created with `Object.create(null)`
+ // (shammed or native) or `{ __proto__: null}`. Also returns null for
+ // cross-realm objects on browsers that lack `__proto__` support (like
+ // IE <11), but that's the best we can do.
+ return null;
+ }
+});
+
+}
+
+
+// _ESAbstract.OrdinaryCreateFromConstructor
+/* global GetPrototypeFromConstructor */
+// 9.1.13. OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] )
+function OrdinaryCreateFromConstructor(constructor, intrinsicDefaultProto) { // eslint-disable-line no-unused-vars
+ var internalSlotsList = arguments[2] || {};
+ // 1. Assert: intrinsicDefaultProto is a String value that is this specification's name of an intrinsic object.
+ // The corresponding object must be an intrinsic that is intended to be used as the[[Prototype]] value of an object.
+
+ // 2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto).
+ var proto = GetPrototypeFromConstructor(constructor, intrinsicDefaultProto);
+
+ // 3. Return ObjectCreate(proto, internalSlotsList).
+ // Polyfill.io - We do not pass internalSlotsList to Object.create because Object.create does not use the default ordinary object definitions specified in 9.1.
+ var obj = Object.create(proto);
+ for (var name in internalSlotsList) {
+ if (Object.prototype.hasOwnProperty.call(internalSlotsList, name)) {
+ Object.defineProperty(obj, name, {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: internalSlotsList[name]
+ });
+ }
+ }
+ return obj;
+}
+
+// _ESAbstract.Construct
+/* global IsConstructor, OrdinaryCreateFromConstructor, Call */
+// 7.3.13. Construct ( F [ , argumentsList [ , newTarget ]] )
+function Construct(F /* [ , argumentsList [ , newTarget ]] */) { // eslint-disable-line no-unused-vars
+ // 1. If newTarget is not present, set newTarget to F.
+ var newTarget = arguments.length > 2 ? arguments[2] : F;
+
+ // 2. If argumentsList is not present, set argumentsList to a new empty List.
+ var argumentsList = arguments.length > 1 ? arguments[1] : [];
+
+ // 3. Assert: IsConstructor(F) is true.
+ if (!IsConstructor(F)) {
+ throw new TypeError('F must be a constructor.');
+ }
+
+ // 4. Assert: IsConstructor(newTarget) is true.
+ if (!IsConstructor(newTarget)) {
+ throw new TypeError('newTarget must be a constructor.');
+ }
+
+ // 5. Return ? F.[[Construct]](argumentsList, newTarget).
+ // Polyfill.io - If newTarget is the same as F, it is equivalent to new F(...argumentsList).
+ if (newTarget === F) {
+ return new (Function.prototype.bind.apply(F, [null].concat(argumentsList)))();
+ } else {
+ // Polyfill.io - This is mimicking section 9.2.2 step 5.a.
+ var obj = OrdinaryCreateFromConstructor(newTarget, Object.prototype);
+ return Call(F, obj, argumentsList);
+ }
+}
+
+// _ESAbstract.ArraySpeciesCreate
+/* global IsArray, ArrayCreate, Get, Type, IsConstructor, Construct */
+// 9.4.2.3. ArraySpeciesCreate ( originalArray, length )
+function ArraySpeciesCreate(originalArray, length) { // eslint-disable-line no-unused-vars
+ // 1. Assert: length is an integer Number ≥ 0.
+ // 2. If length is -0, set length to +0.
+ if (1/length === -Infinity) {
+ length = 0;
+ }
+
+ // 3. Let isArray be ? IsArray(originalArray).
+ var isArray = IsArray(originalArray);
+
+ // 4. If isArray is false, return ? ArrayCreate(length).
+ if (isArray === false) {
+ return ArrayCreate(length);
+ }
+
+ // 5. Let C be ? Get(originalArray, "constructor").
+ var C = Get(originalArray, 'constructor');
+
+ // Polyfill.io - We skip this section as not sure how to make a cross-realm normal Array, a same-realm Array.
+ // 6. If IsConstructor(C) is true, then
+ // if (IsConstructor(C)) {
+ // a. Let thisRealm be the current Realm Record.
+ // b. Let realmC be ? GetFunctionRealm(C).
+ // c. If thisRealm and realmC are not the same Realm Record, then
+ // i. If SameValue(C, realmC.[[Intrinsics]].[[%Array%]]) is true, set C to undefined.
+ // }
+ // 7. If Type(C) is Object, then
+ if (Type(C) === 'object') {
+ // a. Set C to ? Get(C, @@species).
+ C = 'Symbol' in this && 'species' in this.Symbol ? Get(C, this.Symbol.species) : undefined;
+ // b. If C is null, set C to undefined.
+ if (C === null) {
+ C = undefined;
+ }
+ }
+ // 8. If C is undefined, return ? ArrayCreate(length).
+ if (C === undefined) {
+ return ArrayCreate(length);
+ }
+ // 9. If IsConstructor(C) is false, throw a TypeError exception.
+ if (!IsConstructor(C)) {
+ throw new TypeError('C must be a constructor');
+ }
+ // 10. Return ? Construct(C, « length »).
+ return Construct(C, [length]);
+}
+
+// _ESAbstract.CreateDataProperty
+// 7.3.4. CreateDataProperty ( O, P, V )
+// NOTE
+// This abstract operation creates a property whose attributes are set to the same defaults used for properties created by the ECMAScript language assignment operator.
+// Normally, the property will not already exist. If it does exist and is not configurable or if O is not extensible, [[DefineOwnProperty]] will return false.
+function CreateDataProperty(O, P, V) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: IsPropertyKey(P) is true.
+ // 3. Let newDesc be the PropertyDescriptor{ [[Value]]: V, [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true }.
+ var newDesc = {
+ value: V,
+ writable: true,
+ enumerable: true,
+ configurable: true
+ };
+ // 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
+ try {
+ Object.defineProperty(O, P, newDesc);
+ return true;
+ } catch (e) {
+ return false;
+ }
+}
+
+// _ESAbstract.CreateDataPropertyOrThrow
+/* global CreateDataProperty */
+// 7.3.6. CreateDataPropertyOrThrow ( O, P, V )
+function CreateDataPropertyOrThrow(O, P, V) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: IsPropertyKey(P) is true.
+ // 3. Let success be ? CreateDataProperty(O, P, V).
+ var success = CreateDataProperty(O, P, V);
+ // 4. If success is false, throw a TypeError exception.
+ if (!success) {
+ throw new TypeError('Cannot assign value `' + Object.prototype.toString.call(V) + '` to property `' + Object.prototype.toString.call(P) + '` on object `' + Object.prototype.toString.call(O) + '`');
+ }
+ // 5. Return success.
+ return success;
+}
+if (!('filter' in Array.prototype)) {
+
+// Array.prototype.filter
+/* global CreateMethodProperty, ToObject, ToLength, Get, IsCallable, ArraySpeciesCreate, ToString, HasProperty, ToBoolean, Call, CreateDataPropertyOrThrow */
+// 22.1.3.7. Array.prototype.filter ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'filter', function filter(callbackfn /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let A be ? ArraySpeciesCreate(O, 0).
+ var A = ArraySpeciesCreate(O, 0);
+ // 6. Let k be 0.
+ var k = 0;
+ // 7. Let to be 0.
+ var to = 0;
+ // 8. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(O, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(O, Pk);
+ // ii. Let selected be ToBoolean(? Call(callbackfn, T, « kValue, k, O »)).
+ var selected = ToBoolean(Call(callbackfn, T, [kValue, k, O]));
+ // iii. If selected is true, then
+ if (selected) {
+ // 1. Perform ? CreateDataPropertyOrThrow(A, ! ToString(to), kValue)
+ CreateDataPropertyOrThrow(A, ToString(to), kValue);
+ // 2. Increase to by 1.
+ to = to + 1;
+ }
+
+ }
+ // d. Increase k by 1.
+ k = k + 1;
+ }
+ // 9. Return A.
+ return A;
+});
+
+}
+
+if (!('forEach' in Array.prototype)) {
+
+// Array.prototype.forEach
+/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
+// 22.1.3.10. Array.prototype.forEach ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'forEach', function forEach(callbackfn /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // Polyfill.io - If O is a String object, split it into an array in order to iterate correctly.
+ // We will use arrayLike in place of O when we are iterating through the list.
+ var arraylike = O instanceof String ? O.split('') : O;
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let k be 0.
+ var k = 0;
+ // 6. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(arraylike, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(arraylike, Pk);
+ // ii. Perform ? Call(callbackfn, T, « kValue, k, O »).
+ Call(callbackfn, T, [kValue, k, O]);
+ }
+ // d. Increase k by 1.
+ k = k + 1;
+ }
+ // 7. Return undefined.
+ return undefined;
+});
+
+}
+
+if (!('indexOf' in Array.prototype)) {
+
+// Array.prototype.indexOf
+/* global CreateMethodProperty, Get, HasProperty, ToInteger, ToLength, ToObject, ToString */
+// 22.1.3.12. Array.prototype.indexOf ( searchElement [ , fromIndex ] )
+CreateMethodProperty(Array.prototype, 'indexOf', function indexOf(searchElement /* [ , fromIndex ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If len is 0, return -1.
+ if (len === 0) {
+ return -1;
+ }
+ // 4. Let n be ? ToInteger(fromIndex). (If fromIndex is undefined, this step produces the value 0.)
+ var n = ToInteger(arguments[1]);
+ // 5. If n ≥ len, return -1.
+ if (n >= len) {
+ return -1;
+ }
+ // 6. If n ≥ 0, then
+ if (n >= 0) {
+ // a. If n is -0, let k be +0; else let k be n.
+ var k = n === -0 ? 0 : n;
+ // 7. Else n < 0,
+ } else {
+ // a. Let k be len + n.
+ var k = len + n;
+ // b. If k < 0, let k be 0.
+ if (k < 0) {
+ k = 0;
+ }
+ }
+ // 8. Repeat, while k < len
+ while (k < len) {
+ // a. Let kPresent be ? HasProperty(O, ! ToString(k)).
+ var kPresent = HasProperty(O, ToString(k));
+ // b. If kPresent is true, then
+ if (kPresent) {
+ // i. Let elementK be ? Get(O, ! ToString(k)).
+ var elementK = Get(O, ToString(k));
+ // ii. Let same be the result of performing Strict Equality Comparison searchElement === elementK.
+ var same = searchElement === elementK;
+ // iii. If same is true, return k.
+ if (same) {
+ return k;
+ }
+ }
+ // c. Increase k by 1.
+ k = k + 1;
+ }
+ // 9. Return -1.
+ return -1;
+});
+
+}
+
+if (!('lastIndexOf' in Array.prototype)) {
+
+// Array.prototype.lastIndexOf
+/* global CreateMethodProperty, Get, HasProperty, ToInteger, ToLength, ToObject, ToString */
+// 22.1.3.15. Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
+CreateMethodProperty(Array.prototype, 'lastIndexOf', function lastIndexOf(searchElement /* [ , fromIndex ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If len is 0, return -1.
+ if (len === 0) {
+ return -1;
+ }
+ // 4. If fromIndex is present, let n be ? ToInteger(fromIndex); else let n be len-1.
+ var n = arguments.length > 1 ? ToInteger(arguments[1]) : len - 1;
+ // 5. If n ≥ 0, then
+ if (n >= 0) {
+ // a. If n is -0, let k be +0; else let k be min(n, len - 1).
+ var k = n === -0 ? 0 : Math.min(n, len - 1);
+ // 6. Else n < 0,
+ } else {
+ // a. Let k be len + n.
+ k = len + n;
+ }
+ // 7. Repeat, while k ≥ 0
+ while (k >= 0) {
+ // a. Let kPresent be ? HasProperty(O, ! ToString(k)).
+ var kPresent = HasProperty(O, ToString(k));
+ // b. If kPresent is true, then
+ if (kPresent) {
+ // i. Let elementK be ? Get(O, ! ToString(k)).
+ var elementK = Get(O, ToString(k));
+ // ii. Let same be the result of performing Strict Equality Comparison searchElement === elementK.
+ var same = searchElement === elementK;
+ // iii. If same is true, return k.
+ if (same) {
+ return k;
+ }
+ }
+ // c. Decrease k by 1.
+ k = k - 1;
+ }
+ // 9. Return -1.
+ return -1;
+});
+
+}
+
+if (!('map' in Array.prototype)) {
+
+// Array.prototype.map
+/* global ArraySpeciesCreate, Call, CreateDataPropertyOrThrow, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
+/* global CreateMethodProperty, ToObject, ToLength, Get, ArraySpeciesCreate, ToString, HasProperty, Call, CreateDataPropertyOrThrow */
+// 22.1.3.16. Array.prototype.map ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'map', function map(callbackfn /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let A be ? ArraySpeciesCreate(O, len).
+ var A = ArraySpeciesCreate(O, len);
+ // 6. Let k be 0.
+ var k = 0;
+ // 7. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(O, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(O, Pk);
+ // ii. Let mappedValue be ? Call(callbackfn, T, « kValue, k, O »).
+ var mappedValue = Call(callbackfn, T, [kValue, k, O]);
+ // iii. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
+ CreateDataPropertyOrThrow(A, Pk, mappedValue);
+ }
+ // d. Increase k by 1.
+ k = k + 1;
+ }
+ // 8. Return A.
+ return A;
+});
+
+}
+
+if (!('reduce' in Array.prototype)) {
+
+// Array.prototype.reduce
+/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
+// 22.1.3.19. Array.prototype.reduce ( callbackfn [ , initialValue ] )
+CreateMethodProperty(Array.prototype, 'reduce', function reduce(callbackfn /* [ , initialValue ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // Polyfill.io - If O is a String object, split it into an array in order to iterate correctly.
+ // We will use arrayLike in place of O when we are iterating through the list.
+ var arraylike = O instanceof String ? O.split('') : O;
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(arraylike, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If len is 0 and initialValue is not present, throw a TypeError exception.
+ var initialValue = arguments.length > 1 ? arguments[1] : undefined;
+ if (len === 0 && arguments.length < 2) {
+ throw new TypeError('Reduce of empty array with no initial value');
+ }
+ // 5. Let k be 0.
+ var k = 0;
+ // 6. Let accumulator be undefined.
+ var accumulator = undefined;
+ // 7. If initialValue is present, then
+ if (arguments.length > 1) {
+ // a. Set accumulator to initialValue.
+ accumulator = initialValue;
+ // 8. Else initialValue is not present,
+ } else {
+ // a. Let kPresent be false.
+ var kPresent = false;
+ // b. Repeat, while kPresent is false and k < len
+ while (kPresent === false && k < len) {
+ // i. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // ii. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(arraylike, Pk);
+ // iii. If kPresent is true, then
+ if (kPresent) {
+ // 1. Set accumulator to ? Get(O, Pk).
+ var accumulator = Get(arraylike, Pk);
+ }
+ // iv. Increase k by 1.
+ k = k + 1;
+ }
+ // c. If kPresent is false, throw a TypeError exception.
+ if (kPresent === false) {
+ throw new TypeError('Reduce of empty array with no initial value');
+ }
+ }
+ // 9. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(arraylike, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(arraylike, Pk);
+ // ii. Set accumulator to ? Call(callbackfn, undefined, « accumulator, kValue, k, O »).
+ accumulator = Call(callbackfn, undefined, [accumulator, kValue, k, O]);
+ }
+ // d. Increase k by 1.
+ k = k + 1;
+ }
+ // 10. Return accumulator.
+ return accumulator;
+});
+
+}
+
+if (!('reduceRight' in Array.prototype)) {
+
+// Array.prototype.reduceRight
+/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
+// 22.1.3.20. Array.prototype.reduceRight ( callbackfn [ , initialValue ] )
+CreateMethodProperty(Array.prototype, 'reduceRight', function reduceRight(callbackfn /* [ , initialValue ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // Polyfill.io - If O is a String object, split it into an array in order to iterate correctly.
+ // We will use arrayLike in place of O when we are iterating through the list.
+ var arraylike = O instanceof String ? O.split('') : O;
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(arraylike, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If len is 0 and initialValue is not present, throw a TypeError exception.
+ var initialValue = arguments.length > 1 ? arguments[1] : undefined;
+ if (len === 0 && arguments.length < 2) {
+ throw new TypeError('Reduce of empty array with no initial value');
+ }
+ // 5. Let k be len-1.
+ var k = len - 1;
+ // 6. Let accumulator be undefined.
+ var accumulator = undefined;
+ // 7. If initialValue is present, then
+ if (arguments.length > 1) {
+ // a. Set accumulator to initialValue.
+ accumulator = initialValue;
+ // 8.Else initialValue is not present,
+ } else {
+ // a. Let kPresent be false.
+ var kPresent = false;
+ // b. Repeat, while kPresent is false and k ≥ 0
+ while (kPresent === false && k >= 0) {
+ // i. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // ii. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(arraylike, Pk);
+ // iii. If kPresent is true, then
+ if (kPresent) {
+ // 1. Set accumulator to ? Get(O, Pk).
+ accumulator = Get(arraylike, Pk);
+ }
+ // iv. Decrease k by 1.
+ k = k - 1;
+ }
+ // c. If kPresent is false, throw a TypeError exception.
+ if (kPresent === false) {
+ throw new TypeError('Reduce of empty array with no initial value');
+ }
+ }
+ // 9. Repeat, while k ≥ 0
+ while (k >= 0) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(arraylike, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(arraylike, Pk);
+ // ii. Set accumulator to ? Call(callbackfn, undefined, « accumulator, kValue, k, O »).
+ accumulator = Call(callbackfn, undefined, [accumulator, kValue, k, O]);
+ }
+ // d. Decrease k by 1.
+ k = k - 1;
+ }
+ // 10 Return accumulator.
+ return accumulator;
+});
+
+}
+
+if (!('some' in Array.prototype)) {
+
+// Array.prototype.some
+/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToBoolean, ToLength, ToObject, ToString */
+// 22.1.3.24. Array.prototype.some ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'some', function some(callbackfn /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let k be 0.
+ var k = 0;
+ // 6. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(O, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(O, Pk);
+ // ii. Let testResult be ToBoolean(? Call(callbackfn, T, « kValue, k, O »)).
+ var testResult = ToBoolean(Call(callbackfn, T, [kValue, k, O]));
+ // iii. If testResult is true, return true.
+ if (testResult) {
+ return true;
+ }
+ }
+ // d. Increase k by 1.
+ k = k + 1;
+ }
+ // 7. Return false.
+ return false;
+});
+
+}
+
+if (!('Date' in this && 'now' in this.Date && 'getTime' in this.Date.prototype)) {
+
+// Date.now
+Date.now = function now() {
+ return new Date().getTime();
+};
+
+}
+
+if (!('Date' in this && 'toISOString' in Date.prototype)) {
+
+// Date.prototype.toISOString
+Date.prototype.toISOString = function toISOString() {
+ var date = this;
+
+ function pad(str, len) {
+ var pad = "0000";
+ str = '' + str;
+ return pad.substr(0, len - str.length) + str;
+ }
+
+ var y = date.getUTCFullYear(),
+ m = pad(date.getUTCMonth() + 1, 2),
+ d = pad(date.getUTCDate(), 2),
+ h = pad(date.getUTCHours(), 2),
+ i = pad(date.getUTCMinutes(), 2),
+ s = pad(date.getUTCSeconds(), 2),
+ ms = pad(date.getUTCMilliseconds(), 3);
+
+ return y +'-'+ m +'-'+ d + 'T' + h +':'+ i +':'+ s +'.'+ ms +'Z';
+};
+
+}
+
+if (!('freeze' in Object)) {
+
+// Object.freeze
+/* global CreateMethodProperty */
+// 19.1.2.6. Object.freeze ( O )
+CreateMethodProperty(Object, 'freeze', function freeze(O) {
+ // This feature cannot be implemented fully as a polyfill.
+ // We choose to silently fail which allows "securable" code
+ // to "gracefully" degrade to working but insecure code.
+ return O;
+});
+
+}
+
+if (!('getOwnPropertyNames' in Object)) {
+
+// Object.getOwnPropertyNames
+/* global CreateMethodProperty */
+
+var toString = ({}).toString;
+var split = ''.split;
+
+CreateMethodProperty(Object, 'getOwnPropertyNames', function getOwnPropertyNames(object) {
+ var buffer = [];
+ var key;
+
+ // Non-enumerable properties cannot be discovered but can be checked for by name.
+ // Define those used internally by JS to allow an incomplete solution
+ var commonProps = ['length', "name", "arguments", "caller", "prototype", "observe", "unobserve"];
+
+ if (typeof object === 'undefined' || object === null) {
+ throw new TypeError('Cannot convert undefined or null to object');
+ }
+
+ // Polyfill.io fallback for non-array-like strings which exist in some ES3 user-agents (IE 8)
+ object = toString.call(object) == '[object String]' ? split.call(object, '') : Object(object);
+
+ // Enumerable properties only
+ for (key in object) {
+ if (Object.prototype.hasOwnProperty.call(object, key)) {
+ buffer.push(key);
+ }
+ }
+
+ // Check for and add the common non-enumerable properties
+ for (var i=0, s=commonProps.length; i<s; i++) {
+ if (commonProps[i] in object) buffer.push(commonProps[i]);
+ }
+
+ return buffer;
+});
+
+}
+
+
+// _ESAbstract.RequireObjectCoercible
+// 7.2.1. RequireObjectCoercible ( argument )
+// The abstract operation ToObject converts argument to a value of type Object according to Table 12:
+// Table 12: ToObject Conversions
+/*
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Argument Type | Result |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Undefined | Throw a TypeError exception. |
+| Null | Throw a TypeError exception. |
+| Boolean | Return argument. |
+| Number | Return argument. |
+| String | Return argument. |
+| Symbol | Return argument. |
+| Object | Return argument. |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+*/
+function RequireObjectCoercible(argument) { // eslint-disable-line no-unused-vars
+ if (argument === null || argument === undefined) {
+ throw TypeError();
+ }
+ return argument;
+}
+if (!('trim' in String.prototype)) {
+
+// String.prototype.trim
+/* global CreateMethodProperty, RequireObjectCoercible, ToString */
+// 21.1.3.27. String.prototype.trim ( )
+CreateMethodProperty(String.prototype, 'trim', function trim() {
+ // 1. Let O be ? RequireObjectCoercible(this value).
+ var O = RequireObjectCoercible(this);
+ // 2. Let S be ? ToString(O).
+ var S = ToString(O);
+ // 3. Let T be the String value that is a copy of S with both leading and trailing white space removed. The definition of white space is the union of WhiteSpace and LineTerminator. When determining whether a Unicode code point is in Unicode general category “Space_Separator” (“Zs”), code unit sequences are interpreted as UTF-16 encoded code point sequences as specified in 6.1.4.
+ var T = String.prototype.replace.call(S, /^[\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF]+|[\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF]+$/g, '');
+ // 4. Return T.
+ return T;
+});
+
+}
+
+})
+.call('object' === typeof window && window || 'object' === typeof self && self || 'object' === typeof global && global || {});
--- /dev/null
+/* Polyfill service v3.27.1
+ * For detailed credits and licence information see https://github.com/financial-times/polyfill-service.
+ *
+ * Features requested: es6
+ *
+ * - _ESAbstract.IsCallable, License: CC0 (required by "Array.from", "es6", "Array.prototype.find", "Array.prototype.findIndex", "Map", "Set", "WeakMap", "WeakSet", "_ESAbstract.GetMethod", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "Function.prototype.bind", "_ESAbstract.Construct", "Array.of", "Object.getOwnPropertyDescriptor", "Object.assign", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.fill", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
+ * - Object.defineProperty, License: CC0 (required by "Function.name", "es6", "Map", "Array.from", "Number.Epsilon", "Number.MAX_SAFE_INTEGER", "Number.MIN_SAFE_INTEGER", "Object.setPrototypeOf", "RegExp.prototype.flags", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Symbol", "WeakMap", "WeakSet", "_ESAbstract.CreateMethodProperty", "Array.of", "Array.prototype.copyWithin", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Math.acosh", "Math.asinh", "Math.atanh", "Math.cbrt", "Math.clz32", "Math.cosh", "Math.expm1", "Math.fround", "Math.hypot", "Math.imul", "Math.log10", "Math.log1p", "Math.log2", "Math.sign", "Math.sinh", "Math.tanh", "Math.trunc", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "Number.parseFloat", "Number.parseInt", "Object.assign", "Object.is", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_StringIterator", "_ESAbstract.CreateDataProperty", "_ESAbstract.CreateDataPropertyOrThrow", "_ESAbstract.CreateIterResultObject", "_Iterator", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator")
+ * - _ESAbstract.CreateMethodProperty, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.@@iterator", "Array.prototype.copyWithin", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Map", "Math.acosh", "Math.asinh", "Math.atanh", "Math.cbrt", "Math.clz32", "Math.cosh", "Math.expm1", "Math.fround", "Math.hypot", "Math.imul", "Math.log10", "Math.log1p", "Math.log2", "Math.sign", "Math.sinh", "Math.tanh", "Math.trunc", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "Number.parseFloat", "Number.parseInt", "Object.assign", "Object.is", "Object.setPrototypeOf", "Set", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "WeakMap", "WeakSet", "Array.isArray", "Object.create", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Object.getOwnPropertyDescriptor", "Array.prototype.forEach", "Object.getPrototypeOf", "Object.getOwnPropertyNames", "Array.prototype.filter", "Array.prototype.map", "Object.freeze", "Function.prototype.bind", "Object.defineProperties", "_Iterator", "_StringIterator")
+ * - _ESAbstract.ToObject, License: CC0 (required by "Array.from", "es6", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "Object.assign", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.GetV", "_ESAbstract.GetMethod", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "Object.defineProperties", "Object.create", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
+ * - _ESAbstract.GetV, License: CC0 (required by "_ESAbstract.GetMethod", "Array.from", "es6", "Map", "Set", "_ESAbstract.GetIterator", "WeakMap", "WeakSet")
+ * - _ESAbstract.GetMethod, License: CC0 (required by "Array.from", "es6", "Map", "Set", "_ESAbstract.IsConstructor", "Array.of", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ESAbstract.IteratorClose", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
+ * - _ESAbstract.ToInteger, License: CC0 (required by "Array.prototype.copyWithin", "es6", "Array.prototype.fill", "Number.isInteger", "Number.isSafeInteger", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.ToLength", "Array.from", "Array.prototype.find", "Array.prototype.findIndex")
+ * - _ESAbstract.ToLength, License: CC0 (required by "Array.from", "es6", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
+ * - _ESAbstract.Get, License: CC0 (required by "Array.from", "es6", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Object.assign", "RegExp.prototype.flags", "WeakMap", "WeakSet", "_ESAbstract.IteratorValue", "Map", "Set", "_ESAbstract.IteratorComplete", "_ESAbstract.IteratorStep", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.IsRegExp", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.startsWith", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.GetPrototypeFromConstructor", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_Iterator", "_StringIterator", "_ESAbstract.ArraySpeciesCreate", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "String.prototype.codePointAt", "String.prototype.repeat")
+ * - _ESAbstract.HasProperty, License: CC0 (required by "Array.prototype.copyWithin", "es6", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
+ * - _ESAbstract.Call, License: CC0 (required by "Array.from", "es6", "Array.prototype.find", "Array.prototype.findIndex", "WeakMap", "WeakSet", "_ESAbstract.GetIterator", "Map", "Set", "_ESAbstract.IteratorClose", "_ESAbstract.IteratorNext", "_ESAbstract.IteratorStep", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.of", "Array.prototype.fill", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.OrdinaryToPrimitive")
+ * - _ESAbstract.Type, License: CC0 (required by "Map", "es6", "Array.from", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "RegExp.prototype.flags", "WeakMap", "WeakSet", "_ESAbstract.IsConstructor", "Array.of", "_ESAbstract.GetIterator", "Set", "_ESAbstract.IteratorClose", "_ESAbstract.ToString", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.IteratorValue", "_ESAbstract.CreateIterResultObject", "_ESAbstract.IteratorComplete", "_ESAbstract.IteratorStep", "_ESAbstract.IteratorNext", "_ESAbstract.SameValueZero", "Object.create", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_ESAbstract.SameValue", "Object.is", "_ESAbstract.IsRegExp", "_ESAbstract.ToPrimitive", "_ESAbstract.GetPrototypeFromConstructor", "Object.defineProperties", "_Iterator", "_StringIterator", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.OrdinaryToPrimitive")
+ * - _ESAbstract.OrdinaryToPrimitive, License: CC0 (required by "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
+ * - _ESAbstract.ToPrimitive, License: CC0 (required by "_ESAbstract.ToString", "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
+ * - _ESAbstract.ToString, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
+ * - Array.prototype.forEach, License: CC0 (required by "Object.setPrototypeOf", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - _ESAbstract.IsArray, License: CC0 (required by "WeakMap", "es6", "WeakSet", "Array.isArray", "Map", "Array.from", "Set", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.ArrayCreate, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.IsConstructor, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.GetPrototypeFromConstructor, License: CC0 (required by "_ESAbstract.OrdinaryCreateFromConstructor", "Map", "es6", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")
+ * - Object.keys, License: MIT (required by "Object.assign", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Object.defineProperties", "Object.create", "Object.setPrototypeOf", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
+ * - Function.prototype.bind, License: MIT (required by "_ESAbstract.Construct", "Array.from", "es6", "Array.of", "Object.getOwnPropertyDescriptor", "Object.assign", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")
+ * - Object.getOwnPropertyDescriptor, License: CC0 (required by "Object.assign", "es6", "Object.setPrototypeOf", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
+ * - Object.defineProperties, License: CC0 (required by "Object.create", "Map", "es6", "Array.from", "Object.setPrototypeOf", "Set", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
+ * - Object.create, License: CC0 (required by "Map", "es6", "Array.from", "Object.setPrototypeOf", "Set", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_StringIterator")
+ * - Object.getPrototypeOf, License: CC0 (required by "Object.setPrototypeOf", "es6", "_ESAbstract.OrdinaryCreateFromConstructor", "Map", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")
+ * - _ESAbstract.OrdinaryCreateFromConstructor, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")
+ * - _ESAbstract.Construct, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.ArraySpeciesCreate, License: CC0 (required by "Array.prototype.filter", "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.ToBoolean, License: CC0 (required by "Array.prototype.find", "es6", "Array.prototype.findIndex", "RegExp.prototype.flags", "_ESAbstract.IteratorComplete", "Map", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet", "_ESAbstract.IsRegExp", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.startsWith", "Array.prototype.filter", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - _ESAbstract.CreateDataProperty, License: CC0 (required by "_ESAbstract.CreateDataPropertyOrThrow", "Array.from", "es6", "Array.of", "_ESAbstract.CreateIterResultObject", "Map", "Set")
+ * - _ESAbstract.CreateDataPropertyOrThrow, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - Array.prototype.filter, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Array.prototype.map, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Object.getOwnPropertyNames, License: CC0 (required by "Object.setPrototypeOf", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Object.freeze, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Symbol, License: MIT (required by "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "WeakMap", "WeakSet", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")
+ * - Symbol.iterator, License: MIT (required by "es6", "Array.from", "Array.prototype.@@iterator", "Map", "Set", "String.prototype.@@iterator", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")
+ * - _ESAbstract.GetIterator, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
+ * - _ESAbstract.IteratorClose, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
+ * - _ESAbstract.IteratorNext, License: CC0 (required by "Map", "es6", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet")
+ * - _ESAbstract.IteratorComplete, License: CC0 (required by "Map", "es6", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet")
+ * - _ESAbstract.IteratorStep, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
+ * - _ESAbstract.IteratorValue, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
+ * - _ESAbstract.CreateIterResultObject, License: CC0 (required by "Map", "es6", "Array.from", "Set")
+ * - _ESAbstract.SameValueNonNumber, License: CC0 (required by "_ESAbstract.SameValueZero", "Map", "es6", "Array.from", "Set", "WeakSet", "_ESAbstract.SameValue", "Object.is", "WeakMap")
+ * - _ESAbstract.SameValueZero, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakSet")
+ * - Array.isArray, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakMap")
+ * - Symbol.species, License: MIT (required by "es6", "Map", "Array.from", "Set")
+ * - Map, License: CC0 (required by "es6", "Array.from")
+ * - Set, License: CC0 (required by "es6", "Array.from")
+ * - Array.from, License: CC0 (required by "es6")
+ * - Array.of, License: CC0 (required by "es6")
+ * - Object.assign, License: CC0 (required by "es6", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
+ * - Symbol.toStringTag, License: MIT (required by "es6", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
+ * - _Iterator, License: MIT (required by "_ArrayIterator", "Array.prototype.entries", "es6", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
+ * - Object.setPrototypeOf, License: MIT (required by "es6", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
+ * - _ESAbstract.RequireObjectCoercible, License: CC0 (required by "String.prototype.@@iterator", "es6", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
+ * - _ESAbstract.IsRegExp, License: CC0 (required by "String.prototype.endsWith", "es6", "String.prototype.includes", "String.prototype.startsWith")
+ * - String.prototype.includes, License: CC0 (required by "es6", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator")
+ * - _ArrayIterator, License: MIT (required by "Array.prototype.entries", "es6", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator")
+ * - Array.prototype.values, License: MIT (required by "es6", "Array.prototype.@@iterator")
+ * - Array.prototype.@@iterator, License: CC0 (required by "es6")
+ * - Array.prototype.copyWithin, License: MIT (required by "es6")
+ * - Array.prototype.entries, License: CC0 (required by "es6")
+ * - Array.prototype.fill, License: CC0 (required by "es6")
+ * - Array.prototype.find, License: CC0 (required by "es6")
+ * - Array.prototype.findIndex, License: CC0 (required by "es6")
+ * - Array.prototype.keys, License: CC0 (required by "es6")
+ * - Function.name, License: MIT (required by "es6")
+ * - Math.acosh, License: CC0 (required by "es6")
+ * - Math.asinh, License: CC0 (required by "es6")
+ * - Math.atanh, License: CC0 (required by "es6")
+ * - Math.cbrt, License: CC0 (required by "es6")
+ * - _ESAbstract.ToUint32, License: CC0 (required by "Math.clz32", "es6", "Math.imul")
+ * - Math.clz32, License: CC0 (required by "es6")
+ * - Math.cosh, License: CC0 (required by "es6")
+ * - Math.expm1, License: CC0 (required by "es6")
+ * - _TypedArray, License: Copyright 2010, Linden Research, Inc. Copyright 2014, Joshua Bell. (required by "Math.fround", "es6")
+ * - Math.fround, License: CC0 (required by "es6")
+ * - Math.hypot, License: CC0 (required by "es6")
+ * - Math.imul, License: CC0 (required by "es6")
+ * - Math.log10, License: CC0 (required by "es6")
+ * - Math.log1p, License: CC0 (required by "es6")
+ * - Math.log2, License: CC0 (required by "es6")
+ * - Math.sign, License: CC0 (required by "es6")
+ * - Math.sinh, License: CC0 (required by "es6")
+ * - Math.tanh, License: CC0 (required by "es6")
+ * - Math.trunc, License: CC0 (required by "es6")
+ * - Number.Epsilon, License: MIT (required by "es6")
+ * - Number.MAX_SAFE_INTEGER, License: MIT (required by "es6")
+ * - Number.MIN_SAFE_INTEGER, License: MIT (required by "es6")
+ * - Number.isFinite, License: MIT (required by "es6")
+ * - Number.isInteger, License: MIT (required by "es6")
+ * - Number.isNaN, License: MIT (required by "es6")
+ * - Number.isSafeInteger, License: MIT (required by "es6")
+ * - Number.parseFloat, License: MIT (required by "es6")
+ * - Number.parseInt, License: MIT (required by "es6")
+ * - _ESAbstract.SameValue, License: CC0 (required by "Object.is", "es6", "WeakMap")
+ * - Object.is, License: CC0 (required by "es6")
+ * - Promise, License: MIT (required by "es6")
+ * - RegExp.prototype.flags, License: MIT (required by "es6")
+ * - _StringIterator, License: MIT (required by "String.prototype.@@iterator", "es6")
+ * - String.prototype.@@iterator, License: CC0 (required by "es6")
+ * - _ESAbstract.UTF16Decode, License: CC0 (required by "String.prototype.codePointAt", "es6")
+ * - String.prototype.codePointAt, License: MIT (required by "es6")
+ * - String.prototype.endsWith, License: CC0 (required by "es6")
+ * - String.prototype.repeat, License: CC0 (required by "es6")
+ * - String.prototype.startsWith, License: CC0 (required by "es6")
+ * - Symbol.hasInstance, License: MIT (required by "es6")
+ * - Symbol.isConcatSpreadable, License: MIT (required by "es6")
+ * - Symbol.match, License: MIT (required by "es6")
+ * - Symbol.replace, License: MIT (required by "es6")
+ * - Symbol.search, License: MIT (required by "es6")
+ * - Symbol.split, License: MIT (required by "es6")
+ * - Symbol.toPrimitive, License: MIT (required by "es6")
+ * - Symbol.unscopables, License: MIT (required by "es6")
+ * - WeakMap, License: CC0 (required by "es6")
+ * - WeakSet, License: CC0 (required by "es6") */
+
+(function(undefined) {
+
+// _ESAbstract.IsCallable
+// 7.2.3. IsCallable ( argument )
+function IsCallable(argument) { // eslint-disable-line no-unused-vars
+ // 1. If Type(argument) is not Object, return false.
+ // 2. If argument has a [[Call]] internal method, return true.
+ // 3. Return false.
+
+ // Polyfill.io - Only function objects have a [[Call]] internal method. This means we can simplify this function to check that the argument has a type of function.
+ return typeof argument === 'function';
+}
+if (!(// In IE8, defineProperty could only act on DOM elements, so full support
+// for the feature requires the ability to set a property on an arbitrary object
+'defineProperty' in Object && (function() {
+ try {
+ var a = {};
+ Object.defineProperty(a, 'test', {value:42});
+ return true;
+ } catch(e) {
+ return false
+ }
+}()))) {
+
+// Object.defineProperty
+(function (nativeDefineProperty) {
+
+ var supportsAccessors = Object.prototype.hasOwnProperty('__defineGetter__');
+ var ERR_ACCESSORS_NOT_SUPPORTED = 'Getters & setters cannot be defined on this javascript engine';
+ var ERR_VALUE_ACCESSORS = 'A property cannot both have accessors and be writable or have a value';
+
+ // Polyfill.io - This does not use CreateMethodProperty because our CreateMethodProperty function uses Object.defineProperty.
+ Object['defineProperty'] = function defineProperty(object, property, descriptor) {
+
+ // Where native support exists, assume it
+ if (nativeDefineProperty && (object === window || object === document || object === Element.prototype || object instanceof Element)) {
+ return nativeDefineProperty(object, property, descriptor);
+ }
+
+ if (object === null || !(object instanceof Object || typeof object === 'object')) {
+ throw new TypeError('Object.defineProperty called on non-object');
+ }
+
+ if (!(descriptor instanceof Object)) {
+ throw new TypeError('Property description must be an object');
+ }
+
+ var propertyString = String(property);
+ var hasValueOrWritable = 'value' in descriptor || 'writable' in descriptor;
+ var getterType = 'get' in descriptor && typeof descriptor.get;
+ var setterType = 'set' in descriptor && typeof descriptor.set;
+
+ // handle descriptor.get
+ if (getterType) {
+ if (getterType !== 'function') {
+ throw new TypeError('Getter must be a function');
+ }
+ if (!supportsAccessors) {
+ throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
+ }
+ if (hasValueOrWritable) {
+ throw new TypeError(ERR_VALUE_ACCESSORS);
+ }
+ Object.__defineGetter__.call(object, propertyString, descriptor.get);
+ } else {
+ object[propertyString] = descriptor.value;
+ }
+
+ // handle descriptor.set
+ if (setterType) {
+ if (setterType !== 'function') {
+ throw new TypeError('Setter must be a function');
+ }
+ if (!supportsAccessors) {
+ throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
+ }
+ if (hasValueOrWritable) {
+ throw new TypeError(ERR_VALUE_ACCESSORS);
+ }
+ Object.__defineSetter__.call(object, propertyString, descriptor.set);
+ }
+
+ // OK to define value unconditionally - if a getter has been specified as well, an error would be thrown above
+ if ('value' in descriptor) {
+ object[propertyString] = descriptor.value;
+ }
+
+ return object;
+ };
+}(Object.defineProperty));
+
+}
+
+
+// _ESAbstract.CreateMethodProperty
+// 7.3.5. CreateMethodProperty ( O, P, V )
+function CreateMethodProperty(O, P, V) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: IsPropertyKey(P) is true.
+ // 3. Let newDesc be the PropertyDescriptor{[[Value]]: V, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true}.
+ var newDesc = {
+ value: V,
+ writable: true,
+ enumerable: false,
+ configurable: true
+ };
+ // 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
+ Object.defineProperty(O, P, newDesc);
+}
+
+// _ESAbstract.ToObject
+// 7.1.13 ToObject ( argument )
+// The abstract operation ToObject converts argument to a value of type Object according to Table 12:
+// Table 12: ToObject Conversions
+/*
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Argument Type | Result |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Undefined | Throw a TypeError exception. |
+| Null | Throw a TypeError exception. |
+| Boolean | Return a new Boolean object whose [[BooleanData]] internal slot is set to argument. See 19.3 for a description of Boolean objects. |
+| Number | Return a new Number object whose [[NumberData]] internal slot is set to argument. See 20.1 for a description of Number objects. |
+| String | Return a new String object whose [[StringData]] internal slot is set to argument. See 21.1 for a description of String objects. |
+| Symbol | Return a new Symbol object whose [[SymbolData]] internal slot is set to argument. See 19.4 for a description of Symbol objects. |
+| Object | Return argument. |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+*/
+function ToObject(argument) { // eslint-disable-line no-unused-vars
+ if (argument === null || argument === undefined) {
+ throw TypeError();
+ }
+ return Object(argument);
+}
+
+// _ESAbstract.GetV
+/* global ToObject */
+// 7.3.2 GetV (V, P)
+function GetV(v, p) { // eslint-disable-line no-unused-vars
+ // 1. Assert: IsPropertyKey(P) is true.
+ // 2. Let O be ? ToObject(V).
+ var o = ToObject(v);
+ // 3. Return ? O.[[Get]](P, V).
+ return o[p];
+}
+
+// _ESAbstract.GetMethod
+/* global GetV, IsCallable */
+// 7.3.9. GetMethod ( V, P )
+function GetMethod(V, P) { // eslint-disable-line no-unused-vars
+ // 1. Assert: IsPropertyKey(P) is true.
+ // 2. Let func be ? GetV(V, P).
+ var func = GetV(V, P);
+ // 3. If func is either undefined or null, return undefined.
+ if (func === null || func === undefined) {
+ return undefined;
+ }
+ // 4. If IsCallable(func) is false, throw a TypeError exception.
+ if (IsCallable(func) === false) {
+ throw new TypeError('Method not callable: ' + P);
+ }
+ // 5. Return func.
+ return func;
+}
+
+// _ESAbstract.ToInteger
+// 7.1.4. ToInteger ( argument )
+function ToInteger(argument) { // eslint-disable-line no-unused-vars
+ // 1. Let number be ? ToNumber(argument).
+ var number = Number(argument);
+ // 2. If number is NaN, return +0.
+ if (isNaN(number)) {
+ return 0;
+ }
+ // 3. If number is +0, -0, +∞, or -∞, return number.
+ if (1/number === Infinity || 1/number === -Infinity || number === Infinity || number === -Infinity) {
+ return number;
+ }
+ // 4. Return the number value that is the same sign as number and whose magnitude is floor(abs(number)).
+ return ((number < 0) ? -1 : 1) * Math.floor(Math.abs(number));
+}
+
+// _ESAbstract.ToLength
+/* global ToInteger */
+// 7.1.15. ToLength ( argument )
+function ToLength(argument) { // eslint-disable-line no-unused-vars
+ // 1. Let len be ? ToInteger(argument).
+ var len = ToInteger(argument);
+ // 2. If len ≤ +0, return +0.
+ if (len <= 0) {
+ return 0;
+ }
+ // 3. Return min(len, 253-1).
+ return Math.min(len, Math.pow(2, 53) -1);
+}
+
+// _ESAbstract.Get
+// 7.3.1. Get ( O, P )
+function Get(O, P) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: IsPropertyKey(P) is true.
+ // 3. Return ? O.[[Get]](P, O).
+ return O[P];
+}
+
+// _ESAbstract.HasProperty
+// 7.3.10. HasProperty ( O, P )
+function HasProperty(O, P) { // eslint-disable-line no-unused-vars
+ // Assert: Type(O) is Object.
+ // Assert: IsPropertyKey(P) is true.
+ // Return ? O.[[HasProperty]](P).
+ return P in O;
+}
+
+// _ESAbstract.Call
+/* global IsCallable */
+// 7.3.12. Call ( F, V [ , argumentsList ] )
+function Call(F, V /* [, argumentsList] */) { // eslint-disable-line no-unused-vars
+ // 1. If argumentsList is not present, set argumentsList to a new empty List.
+ var argumentsList = arguments.length > 2 ? arguments[2] : [];
+ // 2. If IsCallable(F) is false, throw a TypeError exception.
+ if (IsCallable(F) === false) {
+ throw new TypeError(Object.prototype.toString.call(F) + 'is not a function.');
+ }
+ // 3. Return ? F.[[Call]](V, argumentsList).
+ return F.apply(V, argumentsList);
+}
+
+// _ESAbstract.Type
+// "Type(x)" is used as shorthand for "the type of x"...
+function Type(x) { // eslint-disable-line no-unused-vars
+ switch (typeof x) {
+ case 'undefined':
+ return 'undefined';
+ case 'boolean':
+ return 'boolean';
+ case 'number':
+ return 'number';
+ case 'string':
+ return 'string';
+ case 'symbol':
+ return 'symbol';
+ default:
+ // typeof null is 'object'
+ if (x === null) return 'null';
+ // Polyfill.io - This is here because a Symbol polyfill will have a typeof `object`.
+ if ('Symbol' in this && x instanceof this.Symbol) return 'symbol';
+ return 'object';
+ }
+}
+
+// _ESAbstract.OrdinaryToPrimitive
+/* global Get, IsCallable, Call, Type */
+// 7.1.1.1. OrdinaryToPrimitive ( O, hint )
+function OrdinaryToPrimitive(O, hint) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: Type(hint) is String and its value is either "string" or "number".
+ // 3. If hint is "string", then
+ if (hint === 'string') {
+ // a. Let methodNames be « "toString", "valueOf" ».
+ var methodNames = ['toString', 'valueOf'];
+ // 4. Else,
+ } else {
+ // a. Let methodNames be « "valueOf", "toString" ».
+ methodNames = ['valueOf', 'toString'];
+ }
+ // 5. For each name in methodNames in List order, do
+ for (var i = 0; i < methodNames.length; ++i) {
+ var name = methodNames[i];
+ // a. Let method be ? Get(O, name).
+ var method = Get(O, name);
+ // b. If IsCallable(method) is true, then
+ if (IsCallable(method)) {
+ // i. Let result be ? Call(method, O).
+ var result = Call(method, O);
+ // ii. If Type(result) is not Object, return result.
+ if (Type(result) !== 'object') {
+ return result;
+ }
+ }
+ }
+ // 6. Throw a TypeError exception.
+ throw new TypeError('Cannot convert to primitive.');
+}
+
+// _ESAbstract.ToPrimitive
+/* global Type, GetMethod, Call, OrdinaryToPrimitive */
+// 7.1.1. ToPrimitive ( input [ , PreferredType ] )
+function ToPrimitive(input /* [, PreferredType] */) { // eslint-disable-line no-unused-vars
+ var PreferredType = arguments.length > 1 ? arguments[1] : undefined;
+ // 1. Assert: input is an ECMAScript language value.
+ // 2. If Type(input) is Object, then
+ if (Type(input) === 'object') {
+ // a. If PreferredType is not present, let hint be "default".
+ if (arguments.length < 2) {
+ var hint = 'default';
+ // b. Else if PreferredType is hint String, let hint be "string".
+ } else if (PreferredType === String) {
+ hint = 'string';
+ // c. Else PreferredType is hint Number, let hint be "number".
+ } else if (PreferredType === Number) {
+ hint = 'number';
+ }
+ // d. Let exoticToPrim be ? GetMethod(input, @@toPrimitive).
+ var exoticToPrim = typeof this.Symbol === 'function' && typeof this.Symbol.toPrimitive === 'symbol' ? GetMethod(input, this.Symbol.toPrimitive) : undefined;
+ // e. If exoticToPrim is not undefined, then
+ if (exoticToPrim !== undefined) {
+ // i. Let result be ? Call(exoticToPrim, input, « hint »).
+ var result = Call(exoticToPrim, input, [hint]);
+ // ii. If Type(result) is not Object, return result.
+ if (Type(result) !== 'object') {
+ return result;
+ }
+ // iii. Throw a TypeError exception.
+ throw new TypeError('Cannot convert exotic object to primitive.');
+ }
+ // f. If hint is "default", set hint to "number".
+ if (hint === 'default') {
+ hint = 'number';
+ }
+ // g. Return ? OrdinaryToPrimitive(input, hint).
+ return OrdinaryToPrimitive(input, hint);
+ }
+ // 3. Return input
+ return input;
+}
+
+// _ESAbstract.ToString
+/* global Type, ToPrimitive */
+// 7.1.12. ToString ( argument )
+// The abstract operation ToString converts argument to a value of type String according to Table 11:
+// Table 11: ToString Conversions
+/*
+|---------------|--------------------------------------------------------|
+| Argument Type | Result |
+|---------------|--------------------------------------------------------|
+| Undefined | Return "undefined". |
+|---------------|--------------------------------------------------------|
+| Null | Return "null". |
+|---------------|--------------------------------------------------------|
+| Boolean | If argument is true, return "true". |
+| | If argument is false, return "false". |
+|---------------|--------------------------------------------------------|
+| Number | Return NumberToString(argument). |
+|---------------|--------------------------------------------------------|
+| String | Return argument. |
+|---------------|--------------------------------------------------------|
+| Symbol | Throw a TypeError exception. |
+|---------------|--------------------------------------------------------|
+| Object | Apply the following steps: |
+| | Let primValue be ? ToPrimitive(argument, hint String). |
+| | Return ? ToString(primValue). |
+|---------------|--------------------------------------------------------|
+*/
+function ToString(argument) { // eslint-disable-line no-unused-vars
+ switch(Type(argument)) {
+ case 'symbol':
+ throw new TypeError('Cannot convert a Symbol value to a string');
+ break;
+ case 'object':
+ var primValue = ToPrimitive(argument, 'string');
+ return ToString(primValue);
+ default:
+ return String(argument);
+ }
+}
+if (!('forEach' in Array.prototype)) {
+
+// Array.prototype.forEach
+/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
+// 22.1.3.10. Array.prototype.forEach ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'forEach', function forEach(callbackfn /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // Polyfill.io - If O is a String object, split it into an array in order to iterate correctly.
+ // We will use arrayLike in place of O when we are iterating through the list.
+ var arraylike = O instanceof String ? O.split('') : O;
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let k be 0.
+ var k = 0;
+ // 6. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(arraylike, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(arraylike, Pk);
+ // ii. Perform ? Call(callbackfn, T, « kValue, k, O »).
+ Call(callbackfn, T, [kValue, k, O]);
+ }
+ // d. Increase k by 1.
+ k = k + 1;
+ }
+ // 7. Return undefined.
+ return undefined;
+});
+
+}
+
+
+// _ESAbstract.IsArray
+// 7.2.2. IsArray ( argument )
+function IsArray(argument) { // eslint-disable-line no-unused-vars
+ // 1. If Type(argument) is not Object, return false.
+ // 2. If argument is an Array exotic object, return true.
+ // 3. If argument is a Proxy exotic object, then
+ // a. If argument.[[ProxyHandler]] is null, throw a TypeError exception.
+ // b. Let target be argument.[[ProxyTarget]].
+ // c. Return ? IsArray(target).
+ // 4. Return false.
+
+ // Polyfill.io - We can skip all the above steps and check the string returned from Object.prototype.toString().
+ return Object.prototype.toString.call(argument) === '[object Array]';
+}
+
+// _ESAbstract.ArrayCreate
+// 9.4.2.2. ArrayCreate ( length [ , proto ] )
+function ArrayCreate(length /* [, proto] */) { // eslint-disable-line no-unused-vars
+ // 1. Assert: length is an integer Number ≥ 0.
+ // 2. If length is -0, set length to +0.
+ if (1 / length === -Infinity) {
+ length = 0;
+ }
+ // 3. If length>2^32-1, throw a RangeError exception.
+ if (length > (Math.pow(2, 32) - 1)) {
+ throw new RangeError('Invalid array length');
+ }
+ // 4. If proto is not present, set proto to the intrinsic object %ArrayPrototype%.
+ // 5. Let A be a newly created Array exotic object.
+ var A = [];
+ // 6. Set A's essential internal methods except for [[DefineOwnProperty]] to the default ordinary object definitions specified in 9.1.
+ // 7. Set A.[[DefineOwnProperty]] as specified in 9.4.2.1.
+ // 8. Set A.[[Prototype]] to proto.
+ // 9. Set A.[[Extensible]] to true.
+ // 10. Perform ! OrdinaryDefineOwnProperty(A, "length", PropertyDescriptor{[[Value]]: length, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false}).
+ A.length = length;
+ // 11. Return A.
+ return A;
+}
+
+// _ESAbstract.IsConstructor
+/* global Type */
+// 7.2.4. IsConstructor ( argument )
+function IsConstructor(argument) { // eslint-disable-line no-unused-vars
+ // 1. If Type(argument) is not Object, return false.
+ if (Type(argument) !== 'object') {
+ return false;
+ }
+ // 2. If argument has a [[Construct]] internal method, return true.
+ // 3. Return false.
+
+ // Polyfill.io - `new argument` is the only way to truly test if a function is a constructor.
+ // We choose to not use`new argument` because the argument could have side effects when called.
+ // Instead we check to see if the argument is a function and if it has a prototype.
+ // Arrow functions do not have a [[Construct]] internal method, nor do they have a prototype.
+ return typeof argument === 'function' && !!argument.prototype;
+}
+
+// _ESAbstract.GetPrototypeFromConstructor
+/* global Get, Type */
+// 9.1.14. GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
+function GetPrototypeFromConstructor(constructor, intrinsicDefaultProto) { // eslint-disable-line no-unused-vars
+ // 1. Assert: intrinsicDefaultProto is a String value that is this specification's name of an intrinsic object. The corresponding object must be an intrinsic that is intended to be used as the [[Prototype]] value of an object.
+ // 2. Assert: IsCallable(constructor) is true.
+ // 3. Let proto be ? Get(constructor, "prototype").
+ var proto = Get(constructor, "prototype");
+ // 4. If Type(proto) is not Object, then
+ if (Type(proto) !== 'object') {
+ // a. Let realm be ? GetFunctionRealm(constructor).
+ // b. Set proto to realm's intrinsic object named intrinsicDefaultProto.
+ proto = intrinsicDefaultProto;
+ }
+ // 5. Return proto.
+ return proto;
+}
+if (!('keys' in Object && (function () {
+ // Safari 5.0 bug where Object.keys doesn't work with arguments
+ return (Object.keys(arguments)).length === 2;
+}(1, 2)) && (function () {
+ try {
+ // In ES6 Object.keys works on all object except `null` and `undefined`.
+ Object.keys('');
+ return true;
+ } catch (e) {
+ return false;
+ }
+}()))) {
+
+// Object.keys
+Object.keys = (function() {
+ 'use strict';
+
+ // modified from https://github.com/es-shims/object-keys
+
+ var has = Object.prototype.hasOwnProperty;
+ var toStr = Object.prototype.toString;
+ var isEnumerable = Object.prototype.propertyIsEnumerable;
+ var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
+ var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
+ var dontEnums = [
+ 'toString',
+ 'toLocaleString',
+ 'valueOf',
+ 'hasOwnProperty',
+ 'isPrototypeOf',
+ 'propertyIsEnumerable',
+ 'constructor'
+ ];
+ var equalsConstructorPrototype = function (o) {
+ var ctor = o.constructor;
+ return ctor && ctor.prototype === o;
+ };
+ var excludedKeys = {
+ $console: true,
+ $external: true,
+ $frame: true,
+ $frameElement: true,
+ $frames: true,
+ $innerHeight: true,
+ $innerWidth: true,
+ $outerHeight: true,
+ $outerWidth: true,
+ $pageXOffset: true,
+ $pageYOffset: true,
+ $parent: true,
+ $scrollLeft: true,
+ $scrollTop: true,
+ $scrollX: true,
+ $scrollY: true,
+ $self: true,
+ $webkitIndexedDB: true,
+ $webkitStorageInfo: true,
+ $window: true
+ };
+ var hasAutomationEqualityBug = (function () {
+ /* global window */
+ if (typeof window === 'undefined') { return false; }
+ for (var k in window) {
+ try {
+ if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
+ try {
+ equalsConstructorPrototype(window[k]);
+ } catch (e) {
+ return true;
+ }
+ }
+ } catch (e) {
+ return true;
+ }
+ }
+ return false;
+ }());
+ var equalsConstructorPrototypeIfNotBuggy = function (o) {
+ /* global window */
+ if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
+ return equalsConstructorPrototype(o);
+ }
+ try {
+ return equalsConstructorPrototype(o);
+ } catch (e) {
+ return false;
+ }
+ };
+
+ function isArgumentsObject(value) {
+ var str = toStr.call(value);
+ var isArgs = str === '[object Arguments]';
+ if (!isArgs) {
+ isArgs = str !== '[object Array]' &&
+ value !== null &&
+ typeof value === 'object' &&
+ typeof value.length === 'number' &&
+ value.length >= 0 &&
+ toStr.call(value.callee) === '[object Function]';
+ }
+ return isArgs;
+ }
+
+ return function keys(object) {
+ var isFunction = toStr.call(object) === '[object Function]';
+ var isArguments = isArgumentsObject(object);
+ var isString = toStr.call(object) === '[object String]';
+ var theKeys = [];
+
+ if (object === undefined || object === null) {
+ throw new TypeError('Cannot convert undefined or null to object');
+ }
+
+ var skipProto = hasProtoEnumBug && isFunction;
+ if (isString && object.length > 0 && !has.call(object, 0)) {
+ for (var i = 0; i < object.length; ++i) {
+ theKeys.push(String(i));
+ }
+ }
+
+ if (isArguments && object.length > 0) {
+ for (var j = 0; j < object.length; ++j) {
+ theKeys.push(String(j));
+ }
+ } else {
+ for (var name in object) {
+ if (!(skipProto && name === 'prototype') && has.call(object, name)) {
+ theKeys.push(String(name));
+ }
+ }
+ }
+
+ if (hasDontEnumBug) {
+ var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
+
+ for (var k = 0; k < dontEnums.length; ++k) {
+ if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
+ theKeys.push(dontEnums[k]);
+ }
+ }
+ }
+ return theKeys;
+ };
+}());
+
+}
+
+if (!('bind' in Function.prototype)) {
+
+// Function.prototype.bind
+/* global CreateMethodProperty, IsCallable */
+// 19.2.3.2. Function.prototype.bind ( thisArg, ...args )
+// https://github.com/es-shims/es5-shim/blob/d6d7ff1b131c7ba14c798cafc598bb6780d37d3b/es5-shim.js#L182
+CreateMethodProperty(Function.prototype, 'bind', function bind(that) { // .length is 1
+ // add necessary es5-shim utilities
+ var $Array = Array;
+ var $Object = Object;
+ var ArrayPrototype = $Array.prototype;
+ var Empty = function Empty() { };
+ var array_slice = ArrayPrototype.slice;
+ var array_concat = ArrayPrototype.concat;
+ var array_push = ArrayPrototype.push;
+ var max = Math.max;
+ // /add necessary es5-shim utilities
+
+ // 1. Let Target be the this value.
+ var target = this;
+ // 2. If IsCallable(Target) is false, throw a TypeError exception.
+ if (!IsCallable(target)) {
+ throw new TypeError('Function.prototype.bind called on incompatible ' + target);
+ }
+ // 3. Let A be a new (possibly empty) internal list of all of the
+ // argument values provided after thisArg (arg1, arg2 etc), in order.
+ // XXX slicedArgs will stand in for "A" if used
+ var args = array_slice.call(arguments, 1); // for normal call
+ // 4. Let F be a new native ECMAScript object.
+ // 11. Set the [[Prototype]] internal property of F to the standard
+ // built-in Function prototype object as specified in 15.3.3.1.
+ // 12. Set the [[Call]] internal property of F as described in
+ // 15.3.4.5.1.
+ // 13. Set the [[Construct]] internal property of F as described in
+ // 15.3.4.5.2.
+ // 14. Set the [[HasInstance]] internal property of F as described in
+ // 15.3.4.5.3.
+ var bound;
+ var binder = function () {
+
+ if (this instanceof bound) {
+ // 15.3.4.5.2 [[Construct]]
+ // When the [[Construct]] internal method of a function object,
+ // F that was created using the bind function is called with a
+ // list of arguments ExtraArgs, the following steps are taken:
+ // 1. Let target be the value of F's [[TargetFunction]]
+ // internal property.
+ // 2. If target has no [[Construct]] internal method, a
+ // TypeError exception is thrown.
+ // 3. Let boundArgs be the value of F's [[BoundArgs]] internal
+ // property.
+ // 4. Let args be a new list containing the same values as the
+ // list boundArgs in the same order followed by the same
+ // values as the list ExtraArgs in the same order.
+ // 5. Return the result of calling the [[Construct]] internal
+ // method of target providing args as the arguments.
+
+ var result = target.apply(
+ this,
+ array_concat.call(args, array_slice.call(arguments))
+ );
+ if ($Object(result) === result) {
+ return result;
+ }
+ return this;
+
+ } else {
+ // 15.3.4.5.1 [[Call]]
+ // When the [[Call]] internal method of a function object, F,
+ // which was created using the bind function is called with a
+ // this value and a list of arguments ExtraArgs, the following
+ // steps are taken:
+ // 1. Let boundArgs be the value of F's [[BoundArgs]] internal
+ // property.
+ // 2. Let boundThis be the value of F's [[BoundThis]] internal
+ // property.
+ // 3. Let target be the value of F's [[TargetFunction]] internal
+ // property.
+ // 4. Let args be a new list containing the same values as the
+ // list boundArgs in the same order followed by the same
+ // values as the list ExtraArgs in the same order.
+ // 5. Return the result of calling the [[Call]] internal method
+ // of target providing boundThis as the this value and
+ // providing args as the arguments.
+
+ // equiv: target.call(this, ...boundArgs, ...args)
+ return target.apply(
+ that,
+ array_concat.call(args, array_slice.call(arguments))
+ );
+
+ }
+
+ };
+
+ // 15. If the [[Class]] internal property of Target is "Function", then
+ // a. Let L be the length property of Target minus the length of A.
+ // b. Set the length own property of F to either 0 or L, whichever is
+ // larger.
+ // 16. Else set the length own property of F to 0.
+
+ var boundLength = max(0, target.length - args.length);
+
+ // 17. Set the attributes of the length own property of F to the values
+ // specified in 15.3.5.1.
+ var boundArgs = [];
+ for (var i = 0; i < boundLength; i++) {
+ array_push.call(boundArgs, '$' + i);
+ }
+
+ // XXX Build a dynamic function with desired amount of arguments is the only
+ // way to set the length property of a function.
+ // In environments where Content Security Policies enabled (Chrome extensions,
+ // for ex.) all use of eval or Function costructor throws an exception.
+ // However in all of these environments Function.prototype.bind exists
+ // and so this code will never be executed.
+ bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this, arguments); }')(binder);
+
+ if (target.prototype) {
+ Empty.prototype = target.prototype;
+ bound.prototype = new Empty();
+ // Clean up dangling references.
+ Empty.prototype = null;
+ }
+
+ // TODO
+ // 18. Set the [[Extensible]] internal property of F to true.
+
+ // TODO
+ // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
+ // 20. Call the [[DefineOwnProperty]] internal method of F with
+ // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
+ // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
+ // false.
+ // 21. Call the [[DefineOwnProperty]] internal method of F with
+ // arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
+ // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
+ // and false.
+
+ // TODO
+ // NOTE Function objects created using Function.prototype.bind do not
+ // have a prototype property or the [[Code]], [[FormalParameters]], and
+ // [[Scope]] internal properties.
+ // XXX can't delete prototype in pure-js.
+
+ // 22. Return F.
+ return bound;
+});
+
+}
+
+if (!('getOwnPropertyDescriptor' in Object && typeof Object.getOwnPropertyDescriptor === 'function' && (function() {
+ try {
+ var object = {};
+ object.test = 0;
+ return Object.getOwnPropertyDescriptor(
+ object,
+ "test"
+ ).value === 0;
+ } catch (exception) {
+ return false
+ }
+}()))) {
+
+// Object.getOwnPropertyDescriptor
+/* global CreateMethodProperty */
+(function () {
+ var call = Function.prototype.call;
+ var prototypeOfObject = Object.prototype;
+ var owns = call.bind(prototypeOfObject.hasOwnProperty);
+
+ var lookupGetter;
+ var lookupSetter;
+ var supportsAccessors;
+ if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
+ lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
+ lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
+ }
+ function doesGetOwnPropertyDescriptorWork(object) {
+ try {
+ object.sentinel = 0;
+ return Object.getOwnPropertyDescriptor(
+ object,
+ "sentinel"
+ ).value === 0;
+ } catch (exception) {
+ // returns falsy
+ }
+ }
+ // check whether getOwnPropertyDescriptor works if it's given. Otherwise,
+ // shim partially.
+ if (Object.defineProperty) {
+ var getOwnPropertyDescriptorWorksOnObject =
+ doesGetOwnPropertyDescriptorWork({});
+ var getOwnPropertyDescriptorWorksOnDom = typeof document == "undefined" ||
+ doesGetOwnPropertyDescriptorWork(document.createElement("div"));
+ if (!getOwnPropertyDescriptorWorksOnDom ||
+ !getOwnPropertyDescriptorWorksOnObject
+ ) {
+ var getOwnPropertyDescriptorFallback = Object.getOwnPropertyDescriptor;
+ }
+ }
+
+ if (!Object.getOwnPropertyDescriptor || getOwnPropertyDescriptorFallback) {
+ var ERR_NON_OBJECT = "Object.getOwnPropertyDescriptor called on a non-object: ";
+
+ CreateMethodProperty(Object, 'getOwnPropertyDescriptor', function getOwnPropertyDescriptor(object, property) {
+ if ((typeof object != "object" && typeof object != "function") || object === null) {
+ throw new TypeError(ERR_NON_OBJECT + object);
+ }
+
+ // make a valiant attempt to use the real getOwnPropertyDescriptor
+ // for I8's DOM elements.
+ if (getOwnPropertyDescriptorFallback) {
+ try {
+ return getOwnPropertyDescriptorFallback.call(Object, object, property);
+ } catch (exception) {
+ // try the shim if the real one doesn't work
+ }
+ }
+
+ // If object does not owns property return undefined immediately.
+ if (!owns(object, property)) {
+ return;
+ }
+
+ // If object has a property then it's for sure both `enumerable` and
+ // `configurable`.
+ var descriptor = { enumerable: true, configurable: true };
+
+ // If JS engine supports accessor properties then property may be a
+ // getter or setter.
+ if (supportsAccessors) {
+ // Unfortunately `__lookupGetter__` will return a getter even
+ // if object has own non getter property along with a same named
+ // inherited getter. To avoid misbehavior we temporary remove
+ // `__proto__` so that `__lookupGetter__` will return getter only
+ // if it's owned by an object.
+ var prototype = object.__proto__;
+ object.__proto__ = prototypeOfObject;
+
+ var getter = lookupGetter(object, property);
+ var setter = lookupSetter(object, property);
+
+ // Once we have getter and setter we can put values back.
+ object.__proto__ = prototype;
+
+ if (getter || setter) {
+ if (getter) {
+ descriptor.get = getter;
+ }
+ if (setter) {
+ descriptor.set = setter;
+ }
+ // If it was accessor property we're done and return here
+ // in order to avoid adding `value` to the descriptor.
+ return descriptor;
+ }
+ }
+
+ // If we got this far we know that object has an own property that is
+ // not an accessor so we set it as a value and return descriptor.
+ descriptor.value = object[property];
+ descriptor.writable = true;
+ return descriptor;
+ });
+ }
+}());
+
+}
+
+if (!('defineProperties' in Object)) {
+
+// Object.defineProperties
+/* global CreateMethodProperty, Get, ToObject, Type */
+// 19.1.2.3. Object.defineProperties ( O, Properties )
+CreateMethodProperty(Object, 'defineProperties', function defineProperties(O, Properties) {
+ // 1. If Type(O) is not Object, throw a TypeError exception.
+ if (Type(O) !== 'object') {
+ throw new TypeError('Object.defineProperties called on non-object');
+ }
+ // 2. Let props be ? ToObject(Properties).
+ var props = ToObject(Properties);
+ // 3. Let keys be ? props.[[OwnPropertyKeys]]().
+ /*
+ Polyfill.io - This step in our polyfill is not complying with the specification.
+ [[OwnPropertyKeys]] is meant to return ALL keys, including non-enumerable and symbols.
+ TODO: When we have Reflect.ownKeys, use that instead as it is the userland equivalent of [[OwnPropertyKeys]].
+ */
+ var keys = Object.keys(props);
+ // 4. Let descriptors be a new empty List.
+ var descriptors = [];
+ // 5. For each element nextKey of keys in List order, do
+ for (var i = 0; i < keys.length; i++) {
+ var nextKey = keys[i];
+ // a. Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+ var propDesc = Object.getOwnPropertyDescriptor(props, nextKey);
+ // b. If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+ if (propDesc !== undefined && propDesc.enumerable) {
+ // i. Let descObj be ? Get(props, nextKey).
+ var descObj = Get(props, nextKey);
+ // ii. Let desc be ? ToPropertyDescriptor(descObj).
+ // Polyfill.io - We skip this step because Object.defineProperty deals with it.
+ // TODO: Implement this step?
+ var desc = descObj;
+ // iii. Append the pair (a two element List) consisting of nextKey and desc to the end of descriptors.
+ descriptors.push([nextKey, desc]);
+ }
+ }
+ // 6. For each pair from descriptors in list order, do
+ for (var i = 0; i < descriptors.length; i++){
+ // a. Let P be the first element of pair.
+ var P = descriptors[i][0];
+ // b. Let desc be the second element of pair.
+ var desc = descriptors[i][1];
+ // c. Perform ? DefinePropertyOrThrow(O, P, desc).
+ Object.defineProperty(O, P, desc);
+ }
+ // 7. Return O.
+ return O;
+});
+
+}
+
+if (!('create' in Object)) {
+
+// Object.create
+/* global CreateMethodProperty, Type */
+CreateMethodProperty(Object, 'create', function create(O, properties) {
+ // 1. If Type(O) is neither Object nor Null, throw a TypeError exception.
+ if (Type(O) !== 'object' && Type(O) !== 'null') {
+ throw new TypeError('Object prototype may only be an Object or null');
+ }
+ // 2. Let obj be ObjectCreate(O).
+ var obj = new Function('e', 'function Object() {}Object.prototype=e;return new Object')(O);
+
+ obj.constructor.prototype = O;
+
+ // 3. If Properties is not undefined, then
+ if (1 in arguments) {
+ // a. Return ? ObjectDefineProperties(obj, Properties).
+ return Object.defineProperties(obj, properties);
+ }
+
+ return obj;
+});
+
+}
+
+if (!('getPrototypeOf' in Object)) {
+
+// Object.getPrototypeOf
+/* global CreateMethodProperty */
+// Based on: https://github.com/es-shims/es5-shim/blob/master/es5-sham.js
+
+// https://github.com/es-shims/es5-shim/issues#issue/2
+// http://ejohn.org/blog/objectgetprototypeof/
+// recommended by fschaefer on github
+//
+// sure, and webreflection says ^_^
+// ... this will nerever possibly return null
+// ... Opera Mini breaks here with infinite loops
+CreateMethodProperty(Object, 'getPrototypeOf', function getPrototypeOf(object) {
+ if (object !== Object(object)) {
+ throw new TypeError('Object.getPrototypeOf called on non-object');
+ }
+ var proto = object.__proto__;
+ if (proto || proto === null) {
+ return proto;
+ } else if (typeof object.constructor == 'function' && object instanceof object.constructor) {
+ return object.constructor.prototype;
+ } else if (object instanceof Object) {
+ return Object.prototype;
+ } else {
+ // Correctly return null for Objects created with `Object.create(null)`
+ // (shammed or native) or `{ __proto__: null}`. Also returns null for
+ // cross-realm objects on browsers that lack `__proto__` support (like
+ // IE <11), but that's the best we can do.
+ return null;
+ }
+});
+
+}
+
+
+// _ESAbstract.OrdinaryCreateFromConstructor
+/* global GetPrototypeFromConstructor */
+// 9.1.13. OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] )
+function OrdinaryCreateFromConstructor(constructor, intrinsicDefaultProto) { // eslint-disable-line no-unused-vars
+ var internalSlotsList = arguments[2] || {};
+ // 1. Assert: intrinsicDefaultProto is a String value that is this specification's name of an intrinsic object.
+ // The corresponding object must be an intrinsic that is intended to be used as the[[Prototype]] value of an object.
+
+ // 2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto).
+ var proto = GetPrototypeFromConstructor(constructor, intrinsicDefaultProto);
+
+ // 3. Return ObjectCreate(proto, internalSlotsList).
+ // Polyfill.io - We do not pass internalSlotsList to Object.create because Object.create does not use the default ordinary object definitions specified in 9.1.
+ var obj = Object.create(proto);
+ for (var name in internalSlotsList) {
+ if (Object.prototype.hasOwnProperty.call(internalSlotsList, name)) {
+ Object.defineProperty(obj, name, {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: internalSlotsList[name]
+ });
+ }
+ }
+ return obj;
+}
+
+// _ESAbstract.Construct
+/* global IsConstructor, OrdinaryCreateFromConstructor, Call */
+// 7.3.13. Construct ( F [ , argumentsList [ , newTarget ]] )
+function Construct(F /* [ , argumentsList [ , newTarget ]] */) { // eslint-disable-line no-unused-vars
+ // 1. If newTarget is not present, set newTarget to F.
+ var newTarget = arguments.length > 2 ? arguments[2] : F;
+
+ // 2. If argumentsList is not present, set argumentsList to a new empty List.
+ var argumentsList = arguments.length > 1 ? arguments[1] : [];
+
+ // 3. Assert: IsConstructor(F) is true.
+ if (!IsConstructor(F)) {
+ throw new TypeError('F must be a constructor.');
+ }
+
+ // 4. Assert: IsConstructor(newTarget) is true.
+ if (!IsConstructor(newTarget)) {
+ throw new TypeError('newTarget must be a constructor.');
+ }
+
+ // 5. Return ? F.[[Construct]](argumentsList, newTarget).
+ // Polyfill.io - If newTarget is the same as F, it is equivalent to new F(...argumentsList).
+ if (newTarget === F) {
+ return new (Function.prototype.bind.apply(F, [null].concat(argumentsList)))();
+ } else {
+ // Polyfill.io - This is mimicking section 9.2.2 step 5.a.
+ var obj = OrdinaryCreateFromConstructor(newTarget, Object.prototype);
+ return Call(F, obj, argumentsList);
+ }
+}
+
+// _ESAbstract.ArraySpeciesCreate
+/* global IsArray, ArrayCreate, Get, Type, IsConstructor, Construct */
+// 9.4.2.3. ArraySpeciesCreate ( originalArray, length )
+function ArraySpeciesCreate(originalArray, length) { // eslint-disable-line no-unused-vars
+ // 1. Assert: length is an integer Number ≥ 0.
+ // 2. If length is -0, set length to +0.
+ if (1/length === -Infinity) {
+ length = 0;
+ }
+
+ // 3. Let isArray be ? IsArray(originalArray).
+ var isArray = IsArray(originalArray);
+
+ // 4. If isArray is false, return ? ArrayCreate(length).
+ if (isArray === false) {
+ return ArrayCreate(length);
+ }
+
+ // 5. Let C be ? Get(originalArray, "constructor").
+ var C = Get(originalArray, 'constructor');
+
+ // Polyfill.io - We skip this section as not sure how to make a cross-realm normal Array, a same-realm Array.
+ // 6. If IsConstructor(C) is true, then
+ // if (IsConstructor(C)) {
+ // a. Let thisRealm be the current Realm Record.
+ // b. Let realmC be ? GetFunctionRealm(C).
+ // c. If thisRealm and realmC are not the same Realm Record, then
+ // i. If SameValue(C, realmC.[[Intrinsics]].[[%Array%]]) is true, set C to undefined.
+ // }
+ // 7. If Type(C) is Object, then
+ if (Type(C) === 'object') {
+ // a. Set C to ? Get(C, @@species).
+ C = 'Symbol' in this && 'species' in this.Symbol ? Get(C, this.Symbol.species) : undefined;
+ // b. If C is null, set C to undefined.
+ if (C === null) {
+ C = undefined;
+ }
+ }
+ // 8. If C is undefined, return ? ArrayCreate(length).
+ if (C === undefined) {
+ return ArrayCreate(length);
+ }
+ // 9. If IsConstructor(C) is false, throw a TypeError exception.
+ if (!IsConstructor(C)) {
+ throw new TypeError('C must be a constructor');
+ }
+ // 10. Return ? Construct(C, « length »).
+ return Construct(C, [length]);
+}
+
+// _ESAbstract.ToBoolean
+// 7.1.2. ToBoolean ( argument )
+// The abstract operation ToBoolean converts argument to a value of type Boolean according to Table 9:
+/*
+--------------------------------------------------------------------------------------------------------------
+| Argument Type | Result |
+--------------------------------------------------------------------------------------------------------------
+| Undefined | Return false. |
+| Null | Return false. |
+| Boolean | Return argument. |
+| Number | If argument is +0, -0, or NaN, return false; otherwise return true. |
+| String | If argument is the empty String (its length is zero), return false; otherwise return true. |
+| Symbol | Return true. |
+| Object | Return true. |
+--------------------------------------------------------------------------------------------------------------
+*/
+function ToBoolean(argument) { // eslint-disable-line no-unused-vars
+ return Boolean(argument);
+}
+
+// _ESAbstract.CreateDataProperty
+// 7.3.4. CreateDataProperty ( O, P, V )
+// NOTE
+// This abstract operation creates a property whose attributes are set to the same defaults used for properties created by the ECMAScript language assignment operator.
+// Normally, the property will not already exist. If it does exist and is not configurable or if O is not extensible, [[DefineOwnProperty]] will return false.
+function CreateDataProperty(O, P, V) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: IsPropertyKey(P) is true.
+ // 3. Let newDesc be the PropertyDescriptor{ [[Value]]: V, [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true }.
+ var newDesc = {
+ value: V,
+ writable: true,
+ enumerable: true,
+ configurable: true
+ };
+ // 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
+ try {
+ Object.defineProperty(O, P, newDesc);
+ return true;
+ } catch (e) {
+ return false;
+ }
+}
+
+// _ESAbstract.CreateDataPropertyOrThrow
+/* global CreateDataProperty */
+// 7.3.6. CreateDataPropertyOrThrow ( O, P, V )
+function CreateDataPropertyOrThrow(O, P, V) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(O) is Object.
+ // 2. Assert: IsPropertyKey(P) is true.
+ // 3. Let success be ? CreateDataProperty(O, P, V).
+ var success = CreateDataProperty(O, P, V);
+ // 4. If success is false, throw a TypeError exception.
+ if (!success) {
+ throw new TypeError('Cannot assign value `' + Object.prototype.toString.call(V) + '` to property `' + Object.prototype.toString.call(P) + '` on object `' + Object.prototype.toString.call(O) + '`');
+ }
+ // 5. Return success.
+ return success;
+}
+if (!('filter' in Array.prototype)) {
+
+// Array.prototype.filter
+/* global CreateMethodProperty, ToObject, ToLength, Get, IsCallable, ArraySpeciesCreate, ToString, HasProperty, ToBoolean, Call, CreateDataPropertyOrThrow */
+// 22.1.3.7. Array.prototype.filter ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'filter', function filter(callbackfn /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let A be ? ArraySpeciesCreate(O, 0).
+ var A = ArraySpeciesCreate(O, 0);
+ // 6. Let k be 0.
+ var k = 0;
+ // 7. Let to be 0.
+ var to = 0;
+ // 8. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(O, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(O, Pk);
+ // ii. Let selected be ToBoolean(? Call(callbackfn, T, « kValue, k, O »)).
+ var selected = ToBoolean(Call(callbackfn, T, [kValue, k, O]));
+ // iii. If selected is true, then
+ if (selected) {
+ // 1. Perform ? CreateDataPropertyOrThrow(A, ! ToString(to), kValue)
+ CreateDataPropertyOrThrow(A, ToString(to), kValue);
+ // 2. Increase to by 1.
+ to = to + 1;
+ }
+
+ }
+ // d. Increase k by 1.
+ k = k + 1;
+ }
+ // 9. Return A.
+ return A;
+});
+
+}
+
+if (!('map' in Array.prototype)) {
+
+// Array.prototype.map
+/* global ArraySpeciesCreate, Call, CreateDataPropertyOrThrow, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
+/* global CreateMethodProperty, ToObject, ToLength, Get, ArraySpeciesCreate, ToString, HasProperty, Call, CreateDataPropertyOrThrow */
+// 22.1.3.16. Array.prototype.map ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'map', function map(callbackfn /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (IsCallable(callbackfn) === false) {
+ throw new TypeError(callbackfn + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let A be ? ArraySpeciesCreate(O, len).
+ var A = ArraySpeciesCreate(O, len);
+ // 6. Let k be 0.
+ var k = 0;
+ // 7. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kPresent be ? HasProperty(O, Pk).
+ var kPresent = HasProperty(O, Pk);
+ // c. If kPresent is true, then
+ if (kPresent) {
+ // i. Let kValue be ? Get(O, Pk).
+ var kValue = Get(O, Pk);
+ // ii. Let mappedValue be ? Call(callbackfn, T, « kValue, k, O »).
+ var mappedValue = Call(callbackfn, T, [kValue, k, O]);
+ // iii. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
+ CreateDataPropertyOrThrow(A, Pk, mappedValue);
+ }
+ // d. Increase k by 1.
+ k = k + 1;
+ }
+ // 8. Return A.
+ return A;
+});
+
+}
+
+if (!('getOwnPropertyNames' in Object)) {
+
+// Object.getOwnPropertyNames
+/* global CreateMethodProperty */
+
+var toString = ({}).toString;
+var split = ''.split;
+
+CreateMethodProperty(Object, 'getOwnPropertyNames', function getOwnPropertyNames(object) {
+ var buffer = [];
+ var key;
+
+ // Non-enumerable properties cannot be discovered but can be checked for by name.
+ // Define those used internally by JS to allow an incomplete solution
+ var commonProps = ['length', "name", "arguments", "caller", "prototype", "observe", "unobserve"];
+
+ if (typeof object === 'undefined' || object === null) {
+ throw new TypeError('Cannot convert undefined or null to object');
+ }
+
+ // Polyfill.io fallback for non-array-like strings which exist in some ES3 user-agents (IE 8)
+ object = toString.call(object) == '[object String]' ? split.call(object, '') : Object(object);
+
+ // Enumerable properties only
+ for (key in object) {
+ if (Object.prototype.hasOwnProperty.call(object, key)) {
+ buffer.push(key);
+ }
+ }
+
+ // Check for and add the common non-enumerable properties
+ for (var i=0, s=commonProps.length; i<s; i++) {
+ if (commonProps[i] in object) buffer.push(commonProps[i]);
+ }
+
+ return buffer;
+});
+
+}
+
+if (!('freeze' in Object)) {
+
+// Object.freeze
+/* global CreateMethodProperty */
+// 19.1.2.6. Object.freeze ( O )
+CreateMethodProperty(Object, 'freeze', function freeze(O) {
+ // This feature cannot be implemented fully as a polyfill.
+ // We choose to silently fail which allows "securable" code
+ // to "gracefully" degrade to working but insecure code.
+ return O;
+});
+
+}
+
+if (!('Symbol' in this && this.Symbol.length === 0)) {
+
+// Symbol
+// A modification of https://github.com/WebReflection/get-own-property-symbols
+// (C) Andrea Giammarchi - MIT Licensed
+
+(function (Object, GOPS, global) {
+
+ var setDescriptor;
+ var id = 0;
+ var random = '' + Math.random();
+ var prefix = '__\x01symbol:';
+ var prefixLength = prefix.length;
+ var internalSymbol = '__\x01symbol@@' + random;
+ var DP = 'defineProperty';
+ var DPies = 'defineProperties';
+ var GOPN = 'getOwnPropertyNames';
+ var GOPD = 'getOwnPropertyDescriptor';
+ var PIE = 'propertyIsEnumerable';
+ var ObjectProto = Object.prototype;
+ var hOP = ObjectProto.hasOwnProperty;
+ var pIE = ObjectProto[PIE];
+ var toString = ObjectProto.toString;
+ var concat = Array.prototype.concat;
+ var cachedWindowNames = typeof window === 'object' ? Object.getOwnPropertyNames(window) : [];
+ var nGOPN = Object[GOPN];
+ var gOPN = function getOwnPropertyNames (obj) {
+ if (toString.call(obj) === '[object Window]') {
+ try {
+ return nGOPN(obj);
+ } catch (e) {
+ // IE bug where layout engine calls userland gOPN for cross-domain `window` objects
+ return concat.call([], cachedWindowNames);
+ }
+ }
+ return nGOPN(obj);
+ };
+ var gOPD = Object[GOPD];
+ var create = Object.create;
+ var keys = Object.keys;
+ var freeze = Object.freeze || Object;
+ var defineProperty = Object[DP];
+ var $defineProperties = Object[DPies];
+ var descriptor = gOPD(Object, GOPN);
+ var addInternalIfNeeded = function (o, uid, enumerable) {
+ if (!hOP.call(o, internalSymbol)) {
+ try {
+ defineProperty(o, internalSymbol, {
+ enumerable: false,
+ configurable: false,
+ writable: false,
+ value: {}
+ });
+ } catch (e) {
+ o[internalSymbol] = {};
+ }
+ }
+ o[internalSymbol]['@@' + uid] = enumerable;
+ };
+ var createWithSymbols = function (proto, descriptors) {
+ var self = create(proto);
+ gOPN(descriptors).forEach(function (key) {
+ if (propertyIsEnumerable.call(descriptors, key)) {
+ $defineProperty(self, key, descriptors[key]);
+ }
+ });
+ return self;
+ };
+ var copyAsNonEnumerable = function (descriptor) {
+ var newDescriptor = create(descriptor);
+ newDescriptor.enumerable = false;
+ return newDescriptor;
+ };
+ var get = function get(){};
+ var onlyNonSymbols = function (name) {
+ return name != internalSymbol &&
+ !hOP.call(source, name);
+ };
+ var onlySymbols = function (name) {
+ return name != internalSymbol &&
+ hOP.call(source, name);
+ };
+ var propertyIsEnumerable = function propertyIsEnumerable(key) {
+ var uid = '' + key;
+ return onlySymbols(uid) ? (
+ hOP.call(this, uid) &&
+ this[internalSymbol]['@@' + uid]
+ ) : pIE.call(this, key);
+ };
+ var setAndGetSymbol = function (uid) {
+ var descriptor = {
+ enumerable: false,
+ configurable: true,
+ get: get,
+ set: function (value) {
+ setDescriptor(this, uid, {
+ enumerable: false,
+ configurable: true,
+ writable: true,
+ value: value
+ });
+ addInternalIfNeeded(this, uid, true);
+ }
+ };
+ try {
+ defineProperty(ObjectProto, uid, descriptor);
+ } catch (e) {
+ ObjectProto[uid] = descriptor.value;
+ }
+ return freeze(source[uid] = defineProperty(
+ Object(uid),
+ 'constructor',
+ sourceConstructor
+ ));
+ };
+ var Symbol = function Symbol() {
+ var description = arguments[0];
+ if (this instanceof Symbol) {
+ throw new TypeError('Symbol is not a constructor');
+ }
+ return setAndGetSymbol(
+ prefix.concat(description || '', random, ++id)
+ );
+ };
+ var source = create(null);
+ var sourceConstructor = {value: Symbol};
+ var sourceMap = function (uid) {
+ return source[uid];
+ };
+ var $defineProperty = function defineProp(o, key, descriptor) {
+ var uid = '' + key;
+ if (onlySymbols(uid)) {
+ setDescriptor(o, uid, descriptor.enumerable ?
+ copyAsNonEnumerable(descriptor) : descriptor);
+ addInternalIfNeeded(o, uid, !!descriptor.enumerable);
+ } else {
+ defineProperty(o, key, descriptor);
+ }
+ return o;
+ };
+
+ var onlyInternalSymbols = function (obj) {
+ return function (name) {
+ return hOP.call(obj, internalSymbol) && hOP.call(obj[internalSymbol], '@@' + name);
+ };
+ };
+ var $getOwnPropertySymbols = function getOwnPropertySymbols(o) {
+ return gOPN(o).filter(o === ObjectProto ? onlyInternalSymbols(o) : onlySymbols).map(sourceMap);
+ }
+ ;
+
+ descriptor.value = $defineProperty;
+ defineProperty(Object, DP, descriptor);
+
+ descriptor.value = $getOwnPropertySymbols;
+ defineProperty(Object, GOPS, descriptor);
+
+ descriptor.value = function getOwnPropertyNames(o) {
+ return gOPN(o).filter(onlyNonSymbols);
+ };
+ defineProperty(Object, GOPN, descriptor);
+
+ descriptor.value = function defineProperties(o, descriptors) {
+ var symbols = $getOwnPropertySymbols(descriptors);
+ if (symbols.length) {
+ keys(descriptors).concat(symbols).forEach(function (uid) {
+ if (propertyIsEnumerable.call(descriptors, uid)) {
+ $defineProperty(o, uid, descriptors[uid]);
+ }
+ });
+ } else {
+ $defineProperties(o, descriptors);
+ }
+ return o;
+ };
+ defineProperty(Object, DPies, descriptor);
+
+ descriptor.value = propertyIsEnumerable;
+ defineProperty(ObjectProto, PIE, descriptor);
+
+ descriptor.value = Symbol;
+ defineProperty(global, 'Symbol', descriptor);
+
+ // defining `Symbol.for(key)`
+ descriptor.value = function (key) {
+ var uid = prefix.concat(prefix, key, random);
+ return uid in ObjectProto ? source[uid] : setAndGetSymbol(uid);
+ };
+ defineProperty(Symbol, 'for', descriptor);
+
+ // defining `Symbol.keyFor(symbol)`
+ descriptor.value = function (symbol) {
+ if (onlyNonSymbols(symbol))
+ throw new TypeError(symbol + ' is not a symbol');
+ return hOP.call(source, symbol) ?
+ symbol.slice(prefixLength * 2, -random.length) :
+ void 0
+ ;
+ };
+ defineProperty(Symbol, 'keyFor', descriptor);
+
+ descriptor.value = function getOwnPropertyDescriptor(o, key) {
+ var descriptor = gOPD(o, key);
+ if (descriptor && onlySymbols(key)) {
+ descriptor.enumerable = propertyIsEnumerable.call(o, key);
+ }
+ return descriptor;
+ };
+ defineProperty(Object, GOPD, descriptor);
+
+ descriptor.value = function (proto, descriptors) {
+ return arguments.length === 1 || typeof descriptors === "undefined" ?
+ create(proto) :
+ createWithSymbols(proto, descriptors);
+ };
+ defineProperty(Object, 'create', descriptor);
+
+ descriptor.value = function () {
+ var str = toString.call(this);
+ return (str === '[object String]' && onlySymbols(this)) ? '[object Symbol]' : str;
+ };
+ defineProperty(ObjectProto, 'toString', descriptor);
+
+
+ setDescriptor = function (o, key, descriptor) {
+ var protoDescriptor = gOPD(ObjectProto, key);
+ delete ObjectProto[key];
+ defineProperty(o, key, descriptor);
+ if (o !== ObjectProto) {
+ defineProperty(ObjectProto, key, protoDescriptor);
+ }
+ };
+
+}(Object, 'getOwnPropertySymbols', this));
+
+}
+
+if (!('Symbol' in this && 'iterator' in this.Symbol)) {
+
+// Symbol.iterator
+/* global Symbol */
+Object.defineProperty(Symbol, 'iterator', { value: Symbol('iterator') });
+
+}
+
+
+// _ESAbstract.GetIterator
+/* global GetMethod, Symbol, Call, Type, GetV */
+// 7.4.1. GetIterator ( obj [ , method ] )
+// The abstract operation GetIterator with argument obj and optional argument method performs the following steps:
+function GetIterator(obj /*, method */) { // eslint-disable-line no-unused-vars
+ // 1. If method is not present, then
+ // a. Set method to ? GetMethod(obj, @@iterator).
+ var method = arguments.length > 1 ? arguments[1] : GetMethod(obj, Symbol.iterator);
+ // 2. Let iterator be ? Call(method, obj).
+ var iterator = Call(method, obj);
+ // 3. If Type(iterator) is not Object, throw a TypeError exception.
+ if (Type(iterator) !== 'object') {
+ throw new TypeError('bad iterator');
+ }
+ // 4. Let nextMethod be ? GetV(iterator, "next").
+ var nextMethod = GetV(iterator, "next");
+ // 5. Let iteratorRecord be Record {[[Iterator]]: iterator, [[NextMethod]]: nextMethod, [[Done]]: false}.
+ var iteratorRecord = Object.create(null);
+ iteratorRecord['[[Iterator]]'] = iterator;
+ iteratorRecord['[[NextMethod]]'] = nextMethod;
+ iteratorRecord['[[Done]]'] = false;
+ // 6. Return iteratorRecord.
+ return iteratorRecord;
+}
+
+// _ESAbstract.IteratorClose
+/* global GetMethod, Type, Call */
+// 7.4.6. IteratorClose ( iteratorRecord, completion )
+function IteratorClose(iteratorRecord, completion) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(iteratorRecord.[[Iterator]]) is Object.
+ if (Type(iteratorRecord['[[Iterator]]']) !== 'object') {
+ throw new Error(Object.prototype.toString.call(iteratorRecord['[[Iterator]]']) + 'is not an Object.');
+ }
+ // 2. Assert: completion is a Completion Record.
+ // Polyfill.io - Ignoring this step as there is no way to check if something is a Completion Record in userland JavaScript.
+
+ // 3. Let iterator be iteratorRecord.[[Iterator]].
+ var iterator = iteratorRecord['[[Iterator]]'];
+ // 4. Let return be ? GetMethod(iterator, "return").
+ // Polyfill.io - We name it returnMethod because return is a keyword and can not be used as an identifier (E.G. variable name, function name etc).
+ var returnMethod = GetMethod(iterator, "return");
+ // 5. If return is undefined, return Completion(completion).
+ if (returnMethod === undefined) {
+ return completion;
+ }
+ // 6. Let innerResult be Call(return, iterator, « »).
+ try {
+ var innerResult = Call(returnMethod, iterator);
+ } catch (error) {
+ var innerException = error;
+ }
+ // 7. If completion.[[Type]] is throw, return Completion(completion).
+ if (completion) {
+ return completion;
+ }
+ // 8. If innerResult.[[Type]] is throw, return Completion(innerResult).
+ if (innerException) {
+ throw innerException;
+ }
+ // 9. If Type(innerResult.[[Value]]) is not Object, throw a TypeError exception.
+ if (Type(innerResult) !== 'object') {
+ throw new TypeError("Iterator's return method returned a non-object.");
+ }
+ // 10. Return Completion(completion).
+ return completion;
+}
+
+// _ESAbstract.IteratorNext
+/* global Call, Type */
+// 7.4.2. IteratorNext ( iteratorRecord [ , value ] )
+function IteratorNext(iteratorRecord /* [, value] */) { // eslint-disable-line no-unused-vars
+ // 1. If value is not present, then
+ if (arguments.length < 2) {
+ // a. Let result be ? Call(iteratorRecord.[[NextMethod]], iteratorRecord.[[Iterator]], « »).
+ var result = Call(iteratorRecord['[[NextMethod]]'], iteratorRecord['[[Iterator]]']);
+ // 2. Else,
+ } else {
+ // a. Let result be ? Call(iteratorRecord.[[NextMethod]], iteratorRecord.[[Iterator]], « value »).
+ result = Call(iteratorRecord['[[NextMethod]]'], iteratorRecord['[[Iterator]]'], [arguments[1]]);
+ }
+ // 3. If Type(result) is not Object, throw a TypeError exception.
+ if (Type(result) !== 'object') {
+ throw new TypeError('bad iterator');
+ }
+ // 4. Return result.
+ return result;
+}
+
+// _ESAbstract.IteratorComplete
+/* global Type, ToBoolean, Get */
+// 7.4.3 IteratorComplete ( iterResult )
+function IteratorComplete(iterResult) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(iterResult) is Object.
+ if (Type(iterResult) !== 'object') {
+ throw new Error(Object.prototype.toString.call(iterResult) + 'is not an Object.');
+ }
+ // 2. Return ToBoolean(? Get(iterResult, "done")).
+ return ToBoolean(Get(iterResult, "done"));
+}
+
+// _ESAbstract.IteratorStep
+/* global IteratorNext, IteratorComplete */
+// 7.4.5. IteratorStep ( iteratorRecord )
+function IteratorStep(iteratorRecord) { // eslint-disable-line no-unused-vars
+ // 1. Let result be ? IteratorNext(iteratorRecord).
+ var result = IteratorNext(iteratorRecord);
+ // 2. Let done be ? IteratorComplete(result).
+ var done = IteratorComplete(result);
+ // 3. If done is true, return false.
+ if (done === true) {
+ return false;
+ }
+ // 4. Return result.
+ return result;
+}
+
+// _ESAbstract.IteratorValue
+/* global Type, Get */
+// 7.4.4 IteratorValue ( iterResult )
+function IteratorValue(iterResult) { // eslint-disable-line no-unused-vars
+ // Assert: Type(iterResult) is Object.
+ if (Type(iterResult) !== 'object') {
+ throw new Error(Object.prototype.toString.call(iterResult) + 'is not an Object.');
+ }
+ // Return ? Get(iterResult, "value").
+ return Get(iterResult, "value");
+}
+
+// _ESAbstract.CreateIterResultObject
+/* global Type, CreateDataProperty */
+// 7.4.7. CreateIterResultObject ( value, done )
+function CreateIterResultObject(value, done) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(done) is Boolean.
+ if (Type(done) !== 'boolean') {
+ throw new Error();
+ }
+ // 2. Let obj be ObjectCreate(%ObjectPrototype%).
+ var obj = {};
+ // 3. Perform CreateDataProperty(obj, "value", value).
+ CreateDataProperty(obj, "value", value);
+ // 4. Perform CreateDataProperty(obj, "done", done).
+ CreateDataProperty(obj, "done", done);
+ // 5. Return obj.
+ return obj;
+}
+
+// _ESAbstract.SameValueNonNumber
+// 7.2.12. SameValueNonNumber ( x, y )
+function SameValueNonNumber(x, y) { // eslint-disable-line no-unused-vars
+ // 1. Assert: Type(x) is not Number.
+ // 2. Assert: Type(x) is the same as Type(y).
+ // 3. If Type(x) is Undefined, return true.
+ // 4. If Type(x) is Null, return true.
+ // 5. If Type(x) is String, then
+ // a. If x and y are exactly the same sequence of code units (same length and same code units at corresponding indices), return true; otherwise, return false.
+ // 6. If Type(x) is Boolean, then
+ // a. If x and y are both true or both false, return true; otherwise, return false.
+ // 7. If Type(x) is Symbol, then
+ // a. If x and y are both the same Symbol value, return true; otherwise, return false.
+ // 8. If x and y are the same Object value, return true. Otherwise, return false.
+
+ // Polyfill.io - We can skip all above steps because the === operator does it all for us.
+ return x === y;
+}
+
+// _ESAbstract.SameValueZero
+/* global Type, SameValueNonNumber */
+// 7.2.11. SameValueZero ( x, y )
+function SameValueZero (x, y) { // eslint-disable-line no-unused-vars
+ // 1. If Type(x) is different from Type(y), return false.
+ if (Type(x) !== Type(y)) {
+ return false;
+ }
+ // 2. If Type(x) is Number, then
+ if (Type(x) === 'number') {
+ // a. If x is NaN and y is NaN, return true.
+ if (isNaN(x) && isNaN(y)) {
+ return true;
+ }
+ // b. If x is +0 and y is -0, return true.
+ if (1/x === Infinity && 1/y === -Infinity) {
+ return true;
+ }
+ // c. If x is -0 and y is +0, return true.
+ if (1/x === -Infinity && 1/y === Infinity) {
+ return true;
+ }
+ // d. If x is the same Number value as y, return true.
+ if (x === y) {
+ return true;
+ }
+ // e. Return false.
+ return false;
+ }
+ // 3. Return SameValueNonNumber(x, y).
+ return SameValueNonNumber(x, y);
+}
+if (!('isArray' in Array)) {
+
+// Array.isArray
+/* global CreateMethodProperty, IsArray */
+// 22.1.2.2. Array.isArray ( arg )
+CreateMethodProperty(Array, 'isArray', function isArray(arg) {
+ // 1. Return ? IsArray(arg).
+ return IsArray(arg);
+});
+
+}
+
+if (!('Symbol' in this && 'species' in this.Symbol)) {
+
+// Symbol.species
+/* global Symbol */
+Object.defineProperty(Symbol, 'species', { value: Symbol('species') });
+
+}
+
+if (!('Map' in this && (function() {
+ try {
+ var m = new Map([[1, 1], [2, 2]]);
+ if (Map.length === 0) {
+ if (m.size === 2) {
+ if ('Symbol' in this && 'iterator' in Symbol && typeof m[Symbol.iterator] === 'function') {
+ return true;
+ }
+ }
+ }
+ return false;
+ } catch (e) {
+ return false;
+ }
+}()))) {
+
+// Map
+/* global CreateIterResultObject, CreateMethodProperty, GetIterator, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Type, Symbol */
+(function (global) {
+ var supportsGetters = (function () {
+ try {
+ var a = {};
+ Object.defineProperty(a, 't', {
+ configurable: true,
+ enumerable: false,
+ get: function () {
+ return true;
+ },
+ set: undefined
+ });
+ return !!a.t;
+ } catch (e) {
+ return false;
+ }
+ }());
+
+ // Deleted map items mess with iterator pointers, so rather than removing them mark them as deleted. Can't use undefined or null since those both valid keys so use a private symbol.
+ var undefMarker = Symbol('undef');
+ // 23.1.1.1 Map ( [ iterable ] )
+ var Map = function Map(/* iterable */) {
+ // 1. If NewTarget is undefined, throw a TypeError exception.
+ if (!(this instanceof Map)) {
+ throw new TypeError('Constructor Map requires "new"');
+ }
+ // 2. Let map be ? OrdinaryCreateFromConstructor(NewTarget, "%MapPrototype%", « [[MapData]] »).
+ var map = OrdinaryCreateFromConstructor(this, Map.prototype, {
+ _keys: [],
+ _values: [],
+ _size: 0,
+ _es6Map: true
+ });
+
+ // 3. Set map.[[MapData]] to a new empty List.
+ // Polyfill.io - This step was done as part of step two.
+
+ // Some old engines do not support ES5 getters/setters. Since Map only requires these for the size property, we can fall back to setting the size property statically each time the size of the map changes.
+ if (!supportsGetters) {
+ Object.defineProperty(map, 'size', {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: 0
+ });
+ }
+
+ // 4. If iterable is not present, let iterable be undefined.
+ var iterable = arguments.length > 0 ? arguments[0] : undefined;
+
+ // 5. If iterable is either undefined or null, return map.
+ if (iterable === null || iterable === undefined) {
+ return map;
+ }
+
+ // 6. Let adder be ? Get(map, "set").
+ var adder = map.set;
+
+ // 7. If IsCallable(adder) is false, throw a TypeError exception.
+ if (!IsCallable(adder)) {
+ throw new TypeError("Map.prototype.set is not a function");
+ }
+
+ // 8. Let iteratorRecord be ? GetIterator(iterable).
+ try {
+ var iteratorRecord = GetIterator(iterable);
+ // 9. Repeat,
+ while (true) {
+ // a. Let next be ? IteratorStep(iteratorRecord).
+ var next = IteratorStep(iteratorRecord);
+ // b. If next is false, return map.
+ if (next === false) {
+ return map;
+ }
+ // c. Let nextItem be ? IteratorValue(next).
+ var nextItem = IteratorValue(next);
+ // d. If Type(nextItem) is not Object, then
+ if (Type(nextItem) !== 'object') {
+ // i. Let error be Completion{[[Type]]: throw, [[Value]]: a newly created TypeError object, [[Target]]: empty}.
+ try {
+ throw new TypeError('Iterator value ' + nextItem + ' is not an entry object');
+ } catch (error) {
+ // ii. Return ? IteratorClose(iteratorRecord, error).
+ return IteratorClose(iteratorRecord, error);
+ }
+ }
+ try {
+ // Polyfill.io - The try catch accounts for steps: f, h, and j.
+
+ // e. Let k be Get(nextItem, "0").
+ var k = nextItem[0];
+ // f. If k is an abrupt completion, return ? IteratorClose(iteratorRecord, k).
+ // g. Let v be Get(nextItem, "1").
+ var v = nextItem[1];
+ // h. If v is an abrupt completion, return ? IteratorClose(iteratorRecord, v).
+ // i. Let status be Call(adder, map, « k.[[Value]], v.[[Value]] »).
+ adder.call(map, k, v);
+ } catch (e) {
+ // j. If status is an abrupt completion, return ? IteratorClose(iteratorRecord, status).
+ return IteratorClose(iteratorRecord, e);
+ }
+ }
+ } catch (e) {
+ // Polyfill.io - For user agents which do not have iteration methods on argument objects or arrays, we can special case those.
+ if (Array.isArray(iterable) ||
+ Object.prototype.toString.call(iterable) === '[object Arguments]' ||
+ // IE 7 & IE 8 return '[object Object]' for the arguments object, we can detect by checking for the existence of the callee property
+ (!!iterable.callee)) {
+ var index;
+ var length = iterable.length;
+ for (index = 0; index < length; index++) {
+ adder.call(map, iterable[index][0], iterable[index][1]);
+ }
+ }
+ }
+ return map;
+ };
+
+ // 23.1.2.1. Map.prototype
+ // The initial value of Map.prototype is the intrinsic object %MapPrototype%.
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+ Object.defineProperty(Map, 'prototype', {
+ configurable: false,
+ enumerable: false,
+ writable: false,
+ value: {}
+ });
+
+ // 23.1.2.2 get Map [ @@species ]
+ if (supportsGetters) {
+ Object.defineProperty(Map, Symbol.species, {
+ configurable: true,
+ enumerable: false,
+ get: function () {
+ // 1. Return the this value.
+ return this;
+ },
+ set: undefined
+ });
+ } else {
+ CreateMethodProperty(Map, Symbol.species, Map);
+ }
+
+ // 23.1.3.1 Map.prototype.clear ( )
+ CreateMethodProperty(Map.prototype, 'clear', function clear() {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+ if (M._es6Map !== true) {
+ throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[MapData]].
+ var entries = M._keys;
+ // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // 5.a. Set p.[[Key]] to empty.
+ M._keys[i] = undefMarker;
+ // 5.b. Set p.[[Value]] to empty.
+ M._values[i] = undefMarker;
+ }
+ this._size = 0;
+ if (!supportsGetters) {
+ this.size = this._size;
+ }
+ // 6. Return undefined.
+ return undefined;
+ }
+ );
+
+ // 23.1.3.2. Map.prototype.constructor
+ CreateMethodProperty(Map.prototype, 'constructor', Map);
+
+ // 23.1.3.3. Map.prototype.delete ( key )
+ CreateMethodProperty(Map.prototype, 'delete', function (key) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+ if (M._es6Map !== true) {
+ throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[MapData]].
+ var entries = M._keys;
+ // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, then
+ if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
+ // i. Set p.[[Key]] to empty.
+ this._keys[i] = undefMarker;
+ // ii. Set p.[[Value]] to empty.
+ this._values[i] = undefMarker;
+ this._size = --this._size;
+ if (!supportsGetters) {
+ this.size = this._size;
+ }
+ // iii. Return true.
+ return true;
+ }
+ }
+ // 6. Return false.
+ return false;
+ }
+ );
+
+ // 23.1.3.4. Map.prototype.entries ( )
+ CreateMethodProperty(Map.prototype, 'entries', function entries () {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. Return ? CreateMapIterator(M, "key+value").
+ return CreateMapIterator(M, 'key+value');
+ }
+ );
+
+ // 23.1.3.5. Map.prototype.forEach ( callbackfn [ , thisArg ] )
+ CreateMethodProperty(Map.prototype, 'forEach', function (callbackFn) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method Map.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+ if (M._es6Map !== true) {
+ throw new TypeError('Method Map.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (!IsCallable(callbackFn)) {
+ throw new TypeError(Object.prototype.toString.call(callbackFn) + ' is not a function.');
+ }
+ // 5. If thisArg is present, let T be thisArg; else let T be undefined.
+ if (arguments[1]) {
+ var T = arguments[1];
+ }
+ // 6. Let entries be the List that is M.[[MapData]].
+ var entries = M._keys;
+ // 7. For each Record {[[Key]], [[Value]]} e that is an element of entries, in original key insertion order, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If e.[[Key]] is not empty, then
+ if (M._keys[i] !== undefMarker && M._values[i] !== undefMarker ) {
+ // i. Perform ? Call(callbackfn, T, « e.[[Value]], e.[[Key]], M »).
+ callbackFn.call(T, M._values[i], M._keys[i], M);
+ }
+ }
+ // 8. Return undefined.
+ return undefined;
+ }
+ );
+
+ // 23.1.3.6. Map.prototype.get ( key )
+ CreateMethodProperty(Map.prototype, 'get', function get(key) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method Map.prototype.get called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+ if (M._es6Map !== true) {
+ throw new TypeError('Method Map.prototype.get called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[MapData]].
+ var entries = M._keys;
+ // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, return p.[[Value]].
+ if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
+ return M._values[i];
+ }
+ }
+ // 6. Return undefined.
+ return undefined;
+ });
+
+ // 23.1.3.7. Map.prototype.has ( key )
+ CreateMethodProperty(Map.prototype, 'has', function has (key) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (typeof M !== 'object') {
+ throw new TypeError('Method Map.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+ if (M._es6Map !== true) {
+ throw new TypeError('Method Map.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[MapData]].
+ var entries = M._keys;
+ // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, return true.
+ if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
+ return true;
+ }
+ }
+ // 6. Return false.
+ return false;
+ });
+
+ // 23.1.3.8. Map.prototype.keys ( )
+ CreateMethodProperty(Map.prototype, 'keys', function keys () {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. Return ? CreateMapIterator(M, "key").
+ return CreateMapIterator(M, "key");
+ });
+
+ // 23.1.3.9. Map.prototype.set ( key, value )
+ CreateMethodProperty(Map.prototype, 'set', function set(key, value) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method Map.prototype.set called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+ if (M._es6Map !== true) {
+ throw new TypeError('Method Map.prototype.set called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[MapData]].
+ var entries = M._keys;
+ // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, then
+ if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
+ // i. Set p.[[Value]] to value.
+ M._values[i] = value;
+ // Return M.
+ return M;
+ }
+ }
+ // 6. If key is -0, let key be +0.
+ if (1/key === -Infinity) {
+ key = 0;
+ }
+ // 7. Let p be the Record {[[Key]]: key, [[Value]]: value}.
+ var p = {};
+ p['[[Key]]'] = key;
+ p['[[Value]]'] = value;
+ // 8. Append p as the last element of entries.
+ M._keys.push(p['[[Key]]']);
+ M._values.push(p['[[Value]]']);
+ ++M._size;
+ if (!supportsGetters) {
+ M.size = M._size;
+ }
+ // 9. Return M.
+ return M;
+ });
+
+ // 23.1.3.10. get Map.prototype.size
+ if (supportsGetters) {
+ Object.defineProperty(Map.prototype, 'size', {
+ configurable: true,
+ enumerable: false,
+ get: function () {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method Map.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+ if (M._es6Map !== true) {
+ throw new TypeError('Method Map.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[MapData]].
+ var entries = M._keys;
+ // 5. Let count be 0.
+ var count = 0;
+ // 6. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty, set count to count+1.
+ if (M._keys[i] !== undefMarker) {
+ count = count + 1;
+ }
+ }
+ // 7. Return count.
+ return count;
+ },
+ set: undefined
+ });
+ }
+
+ // 23.1.3.11. Map.prototype.values ( )
+ CreateMethodProperty(Map.prototype, 'values', function values () {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. Return ? CreateMapIterator(M, "value").
+ return CreateMapIterator(M, 'value');
+ }
+ );
+
+ // 23.1.3.12. Map.prototype [ @@iterator ] ( )
+ // The initial value of the @@iterator property is the same function object as the initial value of the entries property.
+ CreateMethodProperty(Map.prototype, Symbol.iterator, Map.prototype.entries);
+
+ // 23.1.3.13. Map.prototype [ @@toStringTag ]
+ // The initial value of the @@toStringTag property is the String value "Map".
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+
+ // Polyfill.io - Safari 8 implements Map.name but as a non-configurable property, which means it would throw an error if we try and configure it here.
+ if (!('name' in Map)) {
+ // 19.2.4.2 name
+ Object.defineProperty(Map, 'name', {
+ configurable: true,
+ enumerable: false,
+ writable: false,
+ value: 'Map'
+ });
+ }
+
+ // 23.1.5.1. CreateMapIterator ( map, kind )
+ function CreateMapIterator(map, kind) {
+ // 1. If Type(map) is not Object, throw a TypeError exception.
+ if (Type(map) !== 'object') {
+ throw new TypeError('createMapIterator called on incompatible receiver ' + Object.prototype.toString.call(map));
+ }
+ // 2. If map does not have a [[MapData]] internal slot, throw a TypeError exception.
+ if (map._es6Map !== true) {
+ throw new TypeError('createMapIterator called on incompatible receiver ' + Object.prototype.toString.call(map));
+ }
+ // 3. Let iterator be ObjectCreate(%MapIteratorPrototype%, « [[Map]], [[MapNextIndex]], [[MapIterationKind]] »).
+ var iterator = Object.create(MapIteratorPrototype);
+ // 4. Set iterator.[[Map]] to map.
+ Object.defineProperty(iterator, '[[Map]]', {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: map
+ });
+ // 5. Set iterator.[[MapNextIndex]] to 0.
+ Object.defineProperty(iterator, '[[MapNextIndex]]', {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: 0
+ });
+ // 6. Set iterator.[[MapIterationKind]] to kind.
+ Object.defineProperty(iterator, '[[MapIterationKind]]', {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: kind
+ });
+ // 7. Return iterator.
+ return iterator;
+ }
+
+ // 23.1.5.2. The %MapIteratorPrototype% Object
+ var MapIteratorPrototype = {};
+ // Polyfill.io - We use this as a quick way to check if an object is a Map Iterator instance.
+ Object.defineProperty(MapIteratorPrototype, 'isMapIterator', {
+ configurable: false,
+ enumerable: false,
+ writable: false,
+ value: true
+ });
+
+ // 23.1.5.2.1. %MapIteratorPrototype%.next ( )
+ CreateMethodProperty(MapIteratorPrototype, 'next', function next() {
+ // 1. Let O be the this value.
+ var O = this;
+ // 2. If Type(O) is not Object, throw a TypeError exception.
+ if (Type(O) !== 'object') {
+ throw new TypeError('Method %MapIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
+ }
+ // 3. If O does not have all of the internal slots of a Map Iterator Instance (23.1.5.3), throw a TypeError exception.
+ if (!O.isMapIterator) {
+ throw new TypeError('Method %MapIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
+ }
+ // 4. Let m be O.[[Map]].
+ var m = O['[[Map]]'];
+ // 5. Let index be O.[[MapNextIndex]].
+ var index = O['[[MapNextIndex]]'];
+ // 6. Let itemKind be O.[[MapIterationKind]].
+ var itemKind = O['[[MapIterationKind]]'];
+ // 7. If m is undefined, return CreateIterResultObject(undefined, true).
+ if (m === undefined) {
+ return CreateIterResultObject(undefined, true);
+ }
+ // 8. Assert: m has a [[MapData]] internal slot.
+ if (!m._es6Map) {
+ throw new Error(Object.prototype.toString.call(m) + ' has a [[MapData]] internal slot.');
+ }
+ // 9. Let entries be the List that is m.[[MapData]].
+ var entries = m._keys;
+ // 10. Let numEntries be the number of elements of entries.
+ var numEntries = entries.length;
+ // 11. NOTE: numEntries must be redetermined each time this method is evaluated.
+ // 12. Repeat, while index is less than numEntries,
+ while (index < numEntries) {
+ // a. Let e be the Record {[[Key]], [[Value]]} that is the value of entries[index].
+ var e = Object.create(null);
+ e['[[Key]]'] = m._keys[index];
+ e['[[Value]]'] = m._values[index];
+ // b. Set index to index+1.
+ index = index + 1;
+ // c. Set O.[[MapNextIndex]] to index.
+ O['[[MapNextIndex]]'] = index;
+ // d. If e.[[Key]] is not empty, then
+ if (e['[[Key]]'] !== undefMarker) {
+ // i. If itemKind is "key", let result be e.[[Key]].
+ if (itemKind === 'key') {
+ var result = e['[[Key]]'];
+ // ii. Else if itemKind is "value", let result be e.[[Value]].
+ } else if (itemKind === 'value') {
+ result = e['[[Value]]'];
+ // iii. Else,
+ } else {
+ // 1. Assert: itemKind is "key+value".
+ if (itemKind !== 'key+value') {
+ throw new Error();
+ }
+ // 2. Let result be CreateArrayFromList(« e.[[Key]], e.[[Value]] »).
+ result = [
+ e['[[Key]]'],
+ e['[[Value]]']
+ ];
+ }
+ // iv. Return CreateIterResultObject(result, false).
+ return CreateIterResultObject(result, false);
+ }
+ }
+ // 13. Set O.[[Map]] to undefined.
+ O['[[Map]]'] = undefined;
+ // 14. Return CreateIterResultObject(undefined, true).
+ return CreateIterResultObject(undefined, true);
+ }
+ );
+
+ // 23.1.5.2.2 %MapIteratorPrototype% [ @@toStringTag ]
+ // The initial value of the @@toStringTag property is the String value "Map Iterator".
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+
+ CreateMethodProperty(MapIteratorPrototype, Symbol.iterator, function iterator() {
+ return this;
+ }
+ );
+
+ // Export the object
+ try {
+ CreateMethodProperty(global, 'Map', Map);
+ } catch (e) {
+ // IE8 throws an error here if we set enumerable to false.
+ // More info on table 2: https://msdn.microsoft.com/en-us/library/dd229916(v=vs.85).aspx
+ global['Map'] = Map;
+ }
+}(this));
+
+}
+
+if (!('Set' in this && (function() {
+ try {
+ var s = new Set([1, 2]);
+ if (Set.length === 0) {
+ if (s.size === 2) {
+ if ('Symbol' in this && 'iterator' in Symbol && typeof s[Symbol.iterator] === 'function') {
+ return true;
+ }
+ }
+ }
+ return false;
+ } catch (e) {
+ return false;
+ }
+}()))) {
+
+// Set
+/* global CreateIterResultObject, CreateMethodProperty, GetIterator, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Symbol */
+(function (global) {
+ var supportsGetters = (function () {
+ try {
+ var a = {};
+ Object.defineProperty(a, 't', {
+ configurable: true,
+ enumerable: false,
+ get: function () {
+ return true;
+ },
+ set: undefined
+ });
+ return !!a.t;
+ } catch (e) {
+ return false;
+ }
+ }());
+
+ // Deleted set items mess with iterator pointers, so rather than removing them mark them as deleted. Can't use undefined or null since those both valid keys so use a private symbol.
+ var undefMarker = Symbol('undef');
+ // 23.2.1.1. Set ( [ iterable ] )
+ var Set = function Set(/* iterable */) {
+ // 1. If NewTarget is undefined, throw a TypeError exception.
+ if (!(this instanceof Set)) {
+ throw new TypeError('Constructor Set requires "new"');
+ }
+ // 2. Let set be ? OrdinaryCreateFromConstructor(NewTarget, "%SetPrototype%", « [[SetData]] »).
+ var set = OrdinaryCreateFromConstructor(this, Set.prototype, {
+ _values: [],
+ _size: 0,
+ _es6Set: true
+ });
+
+ // 3. Set set.[[SetData]] to a new empty List.
+ // Polyfill.io - This step was done as part of step two.
+
+ // Some old engines do not support ES5 getters/setters. Since Set only requires these for the size property, we can fall back to setting the size property statically each time the size of the set changes.
+ if (!supportsGetters) {
+ Object.defineProperty(set, 'size', {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: 0
+ });
+ }
+
+ // 4. If iterable is not present, let iterable be undefined.
+ var iterable = arguments.length > 0 ? arguments[0] : undefined;
+
+ // 5. If iterable is either undefined or null, return set.
+ if (iterable === null || iterable === undefined) {
+ return set;
+ }
+
+ // 6. Let adder be ? Get(set, "add").
+ var adder = set.add;
+ // 7. If IsCallable(adder) is false, throw a TypeError exception.
+ if (!IsCallable(adder)) {
+ throw new TypeError("Set.prototype.add is not a function");
+ }
+
+ try {
+ // 8. Let iteratorRecord be ? GetIterator(iterable).
+ var iteratorRecord = GetIterator(iterable);
+ // 9. Repeat,
+ while (true) {
+ // a. Let next be ? IteratorStep(iteratorRecord).
+ var next = IteratorStep(iteratorRecord);
+ // b. If next is false, return set.
+ if (next === false) {
+ return set;
+ }
+ // c. Let nextValue be ? IteratorValue(next).
+ var nextValue = IteratorValue(next);
+ // d. Let status be Call(adder, set, « nextValue.[[Value]] »).
+ try {
+ adder.call(set, nextValue);
+ } catch (e) {
+ // e. If status is an abrupt completion, return ? IteratorClose(iteratorRecord, status).
+ return IteratorClose(iteratorRecord, e);
+ }
+ }
+ } catch (e) {
+ // Polyfill.io - For user agents which do not have iteration methods on argument objects or arrays, we can special case those.
+ if (Array.isArray(iterable) ||
+ Object.prototype.toString.call(iterable) === '[object Arguments]' ||
+ // IE 7 & IE 8 return '[object Object]' for the arguments object, we can detect by checking for the existence of the callee property
+ (!!iterable.callee)) {
+ var index;
+ var length = iterable.length;
+ for (index = 0; index < length; index++) {
+ adder.call(set, iterable[index]);
+ }
+ }
+ }
+ return set;
+ };
+
+ // 23.2.2.1. Set.prototype
+ // The initial value of Set.prototype is the intrinsic %SetPrototype% object.
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+ Object.defineProperty(Set, 'prototype', {
+ configurable: false,
+ enumerable: false,
+ writable: false,
+ value: {}
+ });
+
+ // 23.2.2.2 get Set [ @@species ]
+ if (supportsGetters) {
+ Object.defineProperty(Set, Symbol.species, {
+ configurable: true,
+ enumerable: false,
+ get: function () {
+ // 1. Return the this value.
+ return this;
+ },
+ set: undefined
+ });
+ } else {
+ CreateMethodProperty(Set, Symbol.species, Set);
+ }
+
+ // 23.2.3.1. Set.prototype.add ( value )
+ CreateMethodProperty(Set.prototype, 'add', function add(value) {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (typeof S !== 'object') {
+ throw new TypeError('Method Set.prototype.add called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+ if (S._es6Set !== true) {
+ throw new TypeError('Method Set.prototype.add called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. Let entries be the List that is S.[[SetData]].
+ var entries = S._values;
+ // 5. For each e that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i];
+ // a. If e is not empty and SameValueZero(e, value) is true, then
+ if (e !== undefMarker && SameValueZero(e, value)) {
+ // i. Return S.
+ return S;
+ }
+ }
+ // 6. If value is -0, let value be +0.
+ if (1/value === -Infinity) {
+ value = 0;
+ }
+ // 7. Append value as the last element of entries.
+ S._values.push(value);
+
+ this._size = ++this._size;
+ if (!supportsGetters) {
+ this.size = this._size;
+ }
+ // 8. Return S.
+ return S;
+ });
+
+ // 23.2.3.2. Set.prototype.clear ( )
+ CreateMethodProperty(Set.prototype, 'clear', function clear() {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (typeof S !== 'object') {
+ throw new TypeError('Method Set.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+ if (S._es6Set !== true) {
+ throw new TypeError('Method Set.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. Let entries be the List that is S.[[SetData]].
+ var entries = S._values;
+ // 5. For each e that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. Replace the element of entries whose value is e with an element whose value is empty.
+ entries[i] = undefMarker;
+ }
+ this._size = 0;
+ if (!supportsGetters) {
+ this.size = this._size;
+ }
+ // 6. Return undefined.
+ return undefined;
+ });
+
+ // 23.2.3.3. Set.prototype.constructor
+ CreateMethodProperty(Set.prototype, 'constructor', Set);
+
+ // 23.2.3.4. Set.prototype.delete ( value )
+ CreateMethodProperty(Set.prototype, 'delete', function (value) {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (typeof S !== 'object') {
+ throw new TypeError('Method Set.prototype.delete called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+ if (S._es6Set !== true) {
+ throw new TypeError('Method Set.prototype.delete called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. Let entries be the List that is S.[[SetData]].
+ var entries = S._values;
+ // 5. For each e that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i];
+ // a. If e is not empty and SameValueZero(e, value) is true, then
+ if (e !== undefMarker && SameValueZero(e, value)) {
+ // i. Replace the element of entries whose value is e with an element whose value is empty.
+ entries[i] = undefMarker;
+
+ this._size = --this._size;
+ if (!supportsGetters) {
+ this.size = this._size;
+ }
+ // ii. Return true.
+ return true;
+ }
+ }
+ // 6. Return false.
+ return false;
+ }
+ );
+
+ // 23.2.3.5. Set.prototype.entries ( )
+ CreateMethodProperty(Set.prototype, 'entries', function entries() {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. Return ? CreateSetIterator(S, "key+value").
+ return CreateSetIterator(S, 'key+value');
+ }
+ );
+
+ // 23.2.3.6. Set.prototype.forEach ( callbackfn [ , thisArg ] )
+ CreateMethodProperty(Set.prototype, 'forEach', function forEach(callbackFn /*[ , thisArg ]*/) {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (typeof S !== 'object') {
+ throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+ if (S._es6Set !== true) {
+ throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. If IsCallable(callbackfn) is false, throw a TypeError exception.
+ if (!IsCallable(callbackFn)) {
+ throw new TypeError(Object.prototype.toString.call(callbackFn) + ' is not a function.');
+ }
+ // 5. If thisArg is present, let T be thisArg; else let T be undefined.
+ if (arguments[1]) {
+ var T = arguments[1];
+ }
+ // 6. Let entries be the List that is S.[[SetData]].
+ var entries = S._values;
+ // 7. For each e that is an element of entries, in original insertion order, do
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i];
+ // a. If e is not empty, then
+ if (e !== undefMarker) {
+ // i. Perform ? Call(callbackfn, T, « e, e, S »).
+ callbackFn.call(T, e, e, S);
+ }
+ }
+ // 8. Return undefined.
+ return undefined;
+ }
+ );
+
+ // 23.2.3.7. Set.prototype.has ( value )
+ CreateMethodProperty(Set.prototype, 'has', function has(value) {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (typeof S !== 'object') {
+ throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+ if (S._es6Set !== true) {
+ throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. Let entries be the List that is S.[[SetData]].
+ var entries = S._values;
+ // 5. For each e that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i];
+ // a. If e is not empty and SameValueZero(e, value) is true, return true.
+ if (e !== undefMarker && SameValueZero(e, value)) {
+ return true;
+ }
+ }
+ // 6. Return false.
+ return false;
+ }
+ );
+
+ // Polyfill.io - We need to define Set.prototype.values before Set.prototype.keys because keys is a reference to values.
+ // 23.2.3.10. Set.prototype.values()
+ var values = function values() {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. Return ? CreateSetIterator(S, "value").
+ return CreateSetIterator(S, "value");
+ };
+ CreateMethodProperty(Set.prototype, 'values', values);
+
+ // 23.2.3.8 Set.prototype.keys ( )
+ // The initial value of the keys property is the same function object as the initial value of the values property.
+ CreateMethodProperty(Set.prototype, 'keys', values);
+
+ // 23.2.3.9. get Set.prototype.size
+ if (supportsGetters) {
+ Object.defineProperty(Set.prototype, 'size', {
+ configurable: true,
+ enumerable: false,
+ get: function () {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (typeof S !== 'object') {
+ throw new TypeError('Method Set.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+ if (S._es6Set !== true) {
+ throw new TypeError('Method Set.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. Let entries be the List that is S.[[SetData]].
+ var entries = S._values;
+ // 5. Let count be 0.
+ var count = 0;
+ // 6. For each e that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i];
+ // a. If e is not empty, set count to count+1.
+ if (e !== undefMarker) {
+ count = count + 1;
+ }
+ }
+ // 7. Return count.
+ return count;
+ },
+ set: undefined
+ });
+ }
+
+ // 23.2.3.11. Set.prototype [ @@iterator ] ( )
+ // The initial value of the @@iterator property is the same function object as the initial value of the values property.
+ CreateMethodProperty(Set.prototype, Symbol.iterator, values);
+
+ // 23.2.3.12. Set.prototype [ @@toStringTag ]
+ // The initial value of the @@toStringTag property is the String value "Set".
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+
+ // Polyfill.io - Safari 8 implements Set.name but as a non-configurable property, which means it would throw an error if we try and configure it here.
+ if (!('name' in Set)) {
+ // 19.2.4.2 name
+ Object.defineProperty(Set, 'name', {
+ configurable: true,
+ enumerable: false,
+ writable: false,
+ value: 'Set'
+ });
+ }
+
+ // 23.2.5.1. CreateSetIterator ( set, kind )
+ function CreateSetIterator(set, kind) {
+ // 1. If Type(set) is not Object, throw a TypeError exception.
+ if (typeof set !== 'object') {
+ throw new TypeError('createSetIterator called on incompatible receiver ' + Object.prototype.toString.call(set));
+ }
+ // 2. If set does not have a [[SetData]] internal slot, throw a TypeError exception.
+ if (set._es6Set !== true) {
+ throw new TypeError('createSetIterator called on incompatible receiver ' + Object.prototype.toString.call(set));
+ }
+ // 3. Let iterator be ObjectCreate(%SetIteratorPrototype%, « [[IteratedSet]], [[SetNextIndex]], [[SetIterationKind]] »).
+ var iterator = Object.create(SetIteratorPrototype);
+ // 4. Set iterator.[[IteratedSet]] to set.
+ Object.defineProperty(iterator, '[[IteratedSet]]', {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: set
+ });
+ // 5. Set iterator.[[SetNextIndex]] to 0.
+ Object.defineProperty(iterator, '[[SetNextIndex]]', {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: 0
+ });
+ // 6. Set iterator.[[SetIterationKind]] to kind.
+ Object.defineProperty(iterator, '[[SetIterationKind]]', {
+ configurable: true,
+ enumerable: false,
+ writable: true,
+ value: kind
+ });
+ // 7. Return iterator.
+ return iterator;
+ }
+
+ // 23.2.5.2. The %SetIteratorPrototype% Object
+ var SetIteratorPrototype = {};
+ //Polyfill.io - We add this property to help us identify what is a set iterator.
+ Object.defineProperty(SetIteratorPrototype, 'isSetIterator', {
+ configurable: false,
+ enumerable: false,
+ writable: false,
+ value: true
+ });
+
+ // 23.2.5.2.1. %SetIteratorPrototype%.next ( )
+ CreateMethodProperty(SetIteratorPrototype, 'next', function next() {
+ // 1. Let O be the this value.
+ var O = this;
+ // 2. If Type(O) is not Object, throw a TypeError exception.
+ if (typeof O !== 'object') {
+ throw new TypeError('Method %SetIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
+ }
+ // 3. If O does not have all of the internal slots of a Set Iterator Instance (23.2.5.3), throw a TypeError exception.
+ if (!O.isSetIterator) {
+ throw new TypeError('Method %SetIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
+ }
+ // 4. Let s be O.[[IteratedSet]].
+ var s = O['[[IteratedSet]]'];
+ // 5. Let index be O.[[SetNextIndex]].
+ var index = O['[[SetNextIndex]]'];
+ // 6. Let itemKind be O.[[SetIterationKind]].
+ var itemKind = O['[[SetIterationKind]]'];
+ // 7. If s is undefined, return CreateIterResultObject(undefined, true).
+ if (s === undefined) {
+ return CreateIterResultObject(undefined, true);
+ }
+ // 8. Assert: s has a [[SetData]] internal slot.
+ if (!s._es6Set) {
+ throw new Error(Object.prototype.toString.call(s) + ' does not have [[SetData]] internal slot.');
+ }
+ // 9. Let entries be the List that is s.[[SetData]].
+ var entries = s._values;
+ // 10. Let numEntries be the number of elements of entries.
+ var numEntries = entries.length;
+ // 11. NOTE: numEntries must be redetermined each time this method is evaluated.
+ // 12. Repeat, while index is less than numEntries,
+ while (index < numEntries) {
+ // a. Let e be entries[index].
+ var e = entries[index];
+ // b. Set index to index+1.
+ index = index + 1;
+ // c. Set O.[[SetNextIndex]] to index.
+ O['[[SetNextIndex]]'] = index;
+ // d. If e is not empty, then
+ if (e !== undefMarker) {
+ // i. If itemKind is "key+value", then
+ if (itemKind === 'key+value') {
+ // 1. Return CreateIterResultObject(CreateArrayFromList(« e, e »), false).
+ return CreateIterResultObject([e, e], false);
+ }
+ // ii. Return CreateIterResultObject(e, false).
+ return CreateIterResultObject(e, false);
+ }
+ }
+ // 13. Set O.[[IteratedSet]] to undefined.
+ O['[[IteratedSet]]'] = undefined;
+ // 14. Return CreateIterResultObject(undefined, true).
+ return CreateIterResultObject(undefined, true);
+ });
+
+ // 23.2.5.2.2. %SetIteratorPrototype% [ @@toStringTag ]
+ // The initial value of the @@toStringTag property is the String value "Set Iterator".
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+
+ CreateMethodProperty(SetIteratorPrototype, Symbol.iterator, function iterator() {
+ return this;
+ }
+ );
+
+ // Export the object
+ try {
+ CreateMethodProperty(global, 'Set', Set);
+ } catch (e) {
+ // IE8 throws an error here if we set enumerable to false.
+ // More info on table 2: https://msdn.microsoft.com/en-us/library/dd229916(v=vs.85).aspx
+ global['Set'] = Set;
+ }
+
+}(this));
+
+}
+
+if (!('from' in Array && (function () {
+ try {
+ Array.from({ length: -Infinity });
+
+ return true;
+ } catch (e) {
+ return false;
+ }
+}()))) {
+
+// Array.from
+/* globals
+ IsCallable, GetMethod, Symbol, IsConstructor, Construct, ArrayCreate, GetIterator, IteratorClose,
+ ToString, IteratorStep, IteratorValue, Call, CreateDataPropertyOrThrow, ToObject, ToLength, Get, CreateMethodProperty
+*/
+(function () {
+ var toString = Object.prototype.toString;
+ var stringMatch = String.prototype.match;
+ // A cross-realm friendly way to detect if a value is a String object or literal.
+ function isString(value) {
+ if (typeof value === 'string') { return true; }
+ if (typeof value !== 'object') { return false; }
+ return toString.call(value) === '[object String]';
+ }
+
+ // 22.1.2.1. Array.from ( items [ , mapfn [ , thisArg ] ] )
+ CreateMethodProperty(Array, 'from', function from(items /* [ , mapfn [ , thisArg ] ] */) { // eslint-disable-line no-undef
+ // 1. Let C be the this value.
+ var C = this;
+ // 2. If mapfn is undefined, let mapping be false.
+ var mapfn = arguments.length > 1 ? arguments[1] : undefined;
+ if (mapfn === undefined) {
+ var mapping = false;
+ // 3. Else,
+ } else {
+ // a. If IsCallable(mapfn) is false, throw a TypeError exception.
+ if (IsCallable(mapfn) === false) {
+ throw new TypeError(Object.prototype.toString.call(mapfn) + ' is not a function.');
+ }
+ // b. If thisArg is present, let T be thisArg; else let T be undefined.
+ var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+ if (thisArg !== undefined) {
+ var T = thisArg;
+ } else {
+ T = undefined;
+ }
+ // c. Let mapping be true.
+ mapping = true;
+
+ }
+ // 4. Let usingIterator be ? GetMethod(items, @@iterator).
+ var usingIterator = GetMethod(items, Symbol.iterator);
+ // 5. If usingIterator is not undefined, then
+ if (usingIterator !== undefined) {
+ // a. If IsConstructor(C) is true, then
+ if (IsConstructor(C)) {
+ // i. Let A be ? Construct(C).
+ var A = Construct(C);
+ // b. Else,
+ } else {
+ // i. Let A be ! ArrayCreate(0).
+ A = ArrayCreate(0);
+ }
+ // c. Let iteratorRecord be ? GetIterator(items, usingIterator).
+ var iteratorRecord = GetIterator(items, usingIterator);
+ // d. Let k be 0.
+ var k = 0;
+ // e. Repeat,
+ while (true) {
+ // i. If k ≥ 2^53-1, then
+ if (k >= (Math.pow(2, 53) - 1)) {
+ // 1. Let error be Completion{[[Type]]: throw, [[Value]]: a newly created TypeError object, [[Target]]: empty}.
+ var error = new TypeError('Iteration count can not be greater than or equal 9007199254740991.');
+ // 2. Return ? IteratorClose(iteratorRecord, error).
+ return IteratorClose(iteratorRecord, error);
+ }
+ // ii. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // iii. Let next be ? IteratorStep(iteratorRecord).
+ var next = IteratorStep(iteratorRecord);
+ // iv. If next is false, then
+ if (next === false) {
+ // 1. Perform ? Set(A, "length", k, true).
+ A["length"] = k;
+ // 2. Return A.
+ return A;
+ }
+ // v. Let nextValue be ? IteratorValue(next).
+ var nextValue = IteratorValue(next);
+ // vi. If mapping is true, then
+ if (mapping) {
+ try {
+ // Polyfill.io - The try catch accounts for step 2.
+ // 1. Let mappedValue be Call(mapfn, T, « nextValue, k »).
+ var mappedValue = Call(mapfn, T, [nextValue, k]);
+ // 2. If mappedValue is an abrupt completion, return ? IteratorClose(iteratorRecord, mappedValue).
+ // 3. Let mappedValue be mappedValue.[[Value]].
+ } catch (e) {
+ return IteratorClose(iteratorRecord, e);
+ }
+
+ // vii. Else, let mappedValue be nextValue.
+ } else {
+ mappedValue = nextValue;
+ }
+ try {
+ // Polyfill.io - The try catch accounts for step ix.
+ // viii. Let defineStatus be CreateDataPropertyOrThrow(A, Pk, mappedValue).
+ CreateDataPropertyOrThrow(A, Pk, mappedValue);
+ // ix. If defineStatus is an abrupt completion, return ? IteratorClose(iteratorRecord, defineStatus).
+ } catch (e) {
+ return IteratorClose(iteratorRecord, e);
+ }
+ // x. Increase k by 1.
+ k = k + 1;
+ }
+ }
+ // 6. NOTE: items is not an Iterable so assume it is an array-like object.
+ // 7. Let arrayLike be ! ToObject(items).
+ // Polyfill.io - For Strings we need to split astral symbols into surrogate pairs.
+ if (isString(items)) {
+ var arrayLike = stringMatch.call(items, /[\uD800-\uDBFF][\uDC00-\uDFFF]?|[^\uD800-\uDFFF]|./g) || [];
+ } else {
+ arrayLike = ToObject(items);
+ }
+ // 8. Let len be ? ToLength(? Get(arrayLike, "length")).
+ var len = ToLength(Get(arrayLike, "length"));
+ // 9. If IsConstructor(C) is true, then
+ if (IsConstructor(C)) {
+ // a. Let A be ? Construct(C, « len »).
+ A = Construct(C, [len]);
+ // 10. Else,
+ } else {
+ // a. Let A be ? ArrayCreate(len).
+ A = ArrayCreate(len);
+ }
+ // 11. Let k be 0.
+ k = 0;
+ // 12. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ Pk = ToString(k);
+ // b. Let kValue be ? Get(arrayLike, Pk).
+ var kValue = Get(arrayLike, Pk);
+ // c. If mapping is true, then
+ if (mapping === true) {
+ // i. Let mappedValue be ? Call(mapfn, T, « kValue, k »).
+ mappedValue = Call(mapfn, T, [kValue, k]);
+ // d. Else, let mappedValue be kValue.
+ } else {
+ mappedValue = kValue;
+ }
+ // e. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
+ CreateDataPropertyOrThrow(A, Pk, mappedValue);
+ // f. Increase k by 1.
+ k = k + 1;
+ }
+ // 13. Perform ? Set(A, "length", len, true).
+ A["length"] = len;
+ // 14. Return A.
+ return A;
+ });
+}());
+
+}
+
+if (!('of' in Array)) {
+
+// Array.of
+/* global ArrayCreate, Construct, CreateDataPropertyOrThrow, CreateMethodProperty, IsConstructor, ToString */
+// 22.1.2.3. Array.of ( ...items )
+CreateMethodProperty(Array, 'of', function of() {
+ // 1. Let len be the actual number of arguments passed to this function.
+ var len = arguments.length;
+ // 2. Let items be the List of arguments passed to this function.
+ var items = arguments;
+ // 3. Let C be the this value.
+ var C = this;
+ // 4. If IsConstructor(C) is true, then
+ if (IsConstructor(C)) {
+ // a. Let A be ? Construct(C, « len »).
+ var A = Construct(C, [len]);
+ // 5. Else,
+ } else {
+ // a. Let A be ? ArrayCreate(len).
+ var A = ArrayCreate(len);
+ }
+ // 6. Let k be 0.
+ var k = 0;
+ // 7. Repeat, while k < len
+ while (k < len) {
+ // a. Let kValue be items[k].
+ var kValue = items[k];
+ // b. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // c. Perform ? CreateDataPropertyOrThrow(A, Pk, kValue).
+ CreateDataPropertyOrThrow(A, Pk, kValue);
+ // d. Increase k by 1.
+ var k = k + 1;
+
+ }
+ // 8. Perform ? Set(A, "length", len, true)
+ A["length"] = len;
+ // 9. Return A.
+ return A;
+});
+
+}
+
+if (!('assign' in Object)) {
+
+// Object.assign
+/* global CreateMethodProperty, Get, ToObject */
+// 19.1.2.1 Object.assign ( target, ...sources )
+CreateMethodProperty(Object, 'assign', function assign(target, source) { // eslint-disable-line no-unused-vars
+ // 1. Let to be ? ToObject(target).
+ var to = ToObject(target);
+
+ // 2. If only one argument was passed, return to.
+ if (arguments.length === 1) {
+ return to;
+ }
+
+ // 3. Let sources be the List of argument values starting with the second argument
+ var sources = Array.prototype.slice.call(arguments, 1);
+
+ // 4. For each element nextSource of sources, in ascending index order, do
+ var index1;
+ var index2;
+ var keys;
+ var from;
+ for (index1 = 0; index1 < sources.length; index1++) {
+ var nextSource = sources[index1];
+ // a. If nextSource is undefined or null, let keys be a new empty List.
+ if (nextSource === undefined || nextSource === null) {
+ keys = [];
+ // b. Else,
+ } else {
+ // i. Let from be ! ToObject(nextSource).
+ from = ToObject(nextSource);
+ // ii. Let keys be ? from.[[OwnPropertyKeys]]().
+ /*
+ This step in our polyfill is not complying with the specification.
+ [[OwnPropertyKeys]] is meant to return ALL keys, including non-enumerable and symbols.
+ TODO: When we have Reflect.ownKeys, use that instead as it is the userland equivalent of [[OwnPropertyKeys]].
+ */
+ keys = Object.keys(from);
+ }
+
+ // c. For each element nextKey of keys in List order, do
+ for (index2 = 0; index2 < keys.length; index2++) {
+ var nextKey = keys[index2];
+ // i. Let desc be ? from.[[GetOwnProperty]](nextKey).
+ var desc = Object.getOwnPropertyDescriptor(from, nextKey);
+ // ii. If desc is not undefined and desc.[[Enumerable]] is true, then
+ if (desc !== undefined && desc.enumerable) {
+ // 1. Let propValue be ? Get(from, nextKey).
+ var propValue = Get(from, nextKey);
+ // 2. Perform ? Set(to, nextKey, propValue, true).
+ to[nextKey] = propValue;
+ }
+ }
+ }
+ // 5. Return to.
+ return to;
+});
+
+}
+
+if (!('Symbol' in this && 'toStringTag' in this.Symbol)) {
+
+// Symbol.toStringTag
+/* global Symbol */
+Object.defineProperty(Symbol, 'toStringTag', {
+ value: Symbol('toStringTag')
+});
+
+}
+
+
+// _Iterator
+/* global Symbol */
+// A modification of https://github.com/medikoo/es6-iterator
+// Copyright (C) 2013-2015 Mariusz Nowak (www.medikoo.com)
+
+var Iterator = (function () { // eslint-disable-line no-unused-vars
+ var clear = function () {
+ this.length = 0;
+ return this;
+ };
+ var callable = function (fn) {
+ if (typeof fn !== 'function') throw new TypeError(fn + " is not a function");
+ return fn;
+ };
+
+ var Iterator = function (list, context) {
+ if (!(this instanceof Iterator)) {
+ return new Iterator(list, context);
+ }
+ Object.defineProperties(this, {
+ __list__: {
+ writable: true,
+ value: list
+ },
+ __context__: {
+ writable: true,
+ value: context
+ },
+ __nextIndex__: {
+ writable: true,
+ value: 0
+ }
+ });
+ if (!context) return;
+ callable(context.on);
+ context.on('_add', this._onAdd.bind(this));
+ context.on('_delete', this._onDelete.bind(this));
+ context.on('_clear', this._onClear.bind(this));
+ };
+
+ Object.defineProperties(Iterator.prototype, Object.assign({
+ constructor: {
+ value: Iterator,
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _next: {
+ value: function () {
+ var i;
+ if (!this.__list__) return;
+ if (this.__redo__) {
+ i = this.__redo__.shift();
+ if (i !== undefined) return i;
+ }
+ if (this.__nextIndex__ < this.__list__.length) return this.__nextIndex__++;
+ this._unBind();
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ next: {
+ value: function () {
+ return this._createResult(this._next());
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _createResult: {
+ value: function (i) {
+ if (i === undefined) return {
+ done: true,
+ value: undefined
+ };
+ return {
+ done: false,
+ value: this._resolve(i)
+ };
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _resolve: {
+ value: function (i) {
+ return this.__list__[i];
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _unBind: {
+ value: function () {
+ this.__list__ = null;
+ delete this.__redo__;
+ if (!this.__context__) return;
+ this.__context__.off('_add', this._onAdd.bind(this));
+ this.__context__.off('_delete', this._onDelete.bind(this));
+ this.__context__.off('_clear', this._onClear.bind(this));
+ this.__context__ = null;
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ toString: {
+ value: function () {
+ return '[object Iterator]';
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ }
+ }, {
+ _onAdd: {
+ value: function (index) {
+ if (index >= this.__nextIndex__) return;
+ ++this.__nextIndex__;
+ if (!this.__redo__) {
+ Object.defineProperty(this, '__redo__', {
+ value: [index],
+ configurable: true,
+ enumerable: false,
+ writable: false
+ });
+ return;
+ }
+ this.__redo__.forEach(function (redo, i) {
+ if (redo >= index) this.__redo__[i] = ++redo;
+ }, this);
+ this.__redo__.push(index);
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _onDelete: {
+ value: function (index) {
+ var i;
+ if (index >= this.__nextIndex__) return;
+ --this.__nextIndex__;
+ if (!this.__redo__) return;
+ i = this.__redo__.indexOf(index);
+ if (i !== -1) this.__redo__.splice(i, 1);
+ this.__redo__.forEach(function (redo, i) {
+ if (redo > index) this.__redo__[i] = --redo;
+ }, this);
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _onClear: {
+ value: function () {
+ if (this.__redo__) clear.call(this.__redo__);
+ this.__nextIndex__ = 0;
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ }
+ }));
+
+ Object.defineProperty(Iterator.prototype, Symbol.iterator, {
+ value: function () {
+ return this;
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ });
+ Object.defineProperty(Iterator.prototype, Symbol.toStringTag, {
+ value: 'Iterator',
+ configurable: false,
+ enumerable: false,
+ writable: true
+ });
+
+ return Iterator;
+}());
+
+// Object.setPrototypeOf
+/* global CreateMethodProperty */
+// ES6-shim 0.16.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+ // NOTE: This versions needs object ownership
+ // because every promoted object needs to be reassigned
+ // otherwise uncompatible browsers cannot work as expected
+ //
+ // NOTE: This might need es5-shim or polyfills upfront
+ // because it's based on ES5 API.
+ // (probably just an IE <= 8 problem)
+ //
+ // NOTE: nodejs is fine in version 0.8, 0.10, and future versions.
+(function () {
+ if (Object.setPrototypeOf) { return; }
+
+ /*jshint proto: true */
+ // @author Andrea Giammarchi - @WebReflection
+
+ var getOwnPropertyNames = Object.getOwnPropertyNames;
+ var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
+ var create = Object.create;
+ var defineProperty = Object.defineProperty;
+ var getPrototypeOf = Object.getPrototypeOf;
+ var objProto = Object.prototype;
+
+ var copyDescriptors = function (target, source) {
+ // define into target descriptors from source
+ getOwnPropertyNames(source).forEach(function (key) {
+ defineProperty(
+ target,
+ key,
+ getOwnPropertyDescriptor(source, key)
+ );
+ });
+ return target;
+ };
+ // used as fallback when no promotion is possible
+ var createAndCopy = function setPrototypeOf(origin, proto) {
+ return copyDescriptors(create(proto), origin);
+ };
+ var set, sPOf;
+ try {
+ // this might fail for various reasons
+ // ignore if Chrome cought it at runtime
+ set = getOwnPropertyDescriptor(objProto, '__proto__').set;
+ set.call({}, null);
+ // setter not poisoned, it can promote
+ // Firefox, Chrome
+ sPOf = function setPrototypeOf(origin, proto) {
+ set.call(origin, proto);
+ return origin;
+ };
+ } catch (e) {
+ // do one or more feature detections
+ set = { __proto__: null };
+ // if proto does not work, needs to fallback
+ // some Opera, Rhino, ducktape
+ if (set instanceof Object) {
+ sPOf = createAndCopy;
+ } else {
+ // verify if null objects are buggy
+ /* eslint-disable no-proto */
+ set.__proto__ = objProto;
+ /* eslint-enable no-proto */
+ // if null objects are buggy
+ // nodejs 0.8 to 0.10
+ if (set instanceof Object) {
+ sPOf = function setPrototypeOf(origin, proto) {
+ // use such bug to promote
+ /* eslint-disable no-proto */
+ origin.__proto__ = proto;
+ /* eslint-enable no-proto */
+ return origin;
+ };
+ } else {
+ // try to use proto or fallback
+ // Safari, old Firefox, many others
+ sPOf = function setPrototypeOf(origin, proto) {
+ // if proto is not null
+ if (getPrototypeOf(origin)) {
+ // use __proto__ to promote
+ /* eslint-disable no-proto */
+ origin.__proto__ = proto;
+ /* eslint-enable no-proto */
+ return origin;
+ } else {
+ // otherwise unable to promote: fallback
+ return createAndCopy(origin, proto);
+ }
+ };
+ }
+ }
+ }
+ CreateMethodProperty(Object, 'setPrototypeOf', sPOf);
+}());
+
+// _ESAbstract.RequireObjectCoercible
+// 7.2.1. RequireObjectCoercible ( argument )
+// The abstract operation ToObject converts argument to a value of type Object according to Table 12:
+// Table 12: ToObject Conversions
+/*
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Argument Type | Result |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Undefined | Throw a TypeError exception. |
+| Null | Throw a TypeError exception. |
+| Boolean | Return argument. |
+| Number | Return argument. |
+| String | Return argument. |
+| Symbol | Return argument. |
+| Object | Return argument. |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+*/
+function RequireObjectCoercible(argument) { // eslint-disable-line no-unused-vars
+ if (argument === null || argument === undefined) {
+ throw TypeError();
+ }
+ return argument;
+}
+
+// _ESAbstract.IsRegExp
+/* global Type, Get, ToBoolean */
+// 7.2.8. IsRegExp ( argument )
+function IsRegExp(argument) { // eslint-disable-line no-unused-vars
+ // 1. If Type(argument) is not Object, return false.
+ if (Type(argument) !== 'object') {
+ return false;
+ }
+ // 2. Let matcher be ? Get(argument, @@match).
+ var matcher = 'Symbol' in this && 'match' in this.Symbol ? Get(argument, this.Symbol.match) : undefined;
+ // 3. If matcher is not undefined, return ToBoolean(matcher).
+ if (matcher !== undefined) {
+ return ToBoolean(matcher);
+ }
+ // 4. If argument has a [[RegExpMatcher]] internal slot, return true.
+ try {
+ var lastIndex = argument.lastIndex;
+ argument.lastIndex = 0;
+ RegExp.prototype.exec.call(argument);
+ return true;
+ } catch (e) {} finally {
+ argument.lastIndex = lastIndex;
+ }
+ // 5. Return false.
+ return false;
+}
+if (!('includes' in String.prototype)) {
+
+// String.prototype.includes
+/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
+// 21.1.3.7. String.prototype.includes ( searchString [ , position ] )
+CreateMethodProperty(String.prototype, 'includes', function includes(searchString /* [ , position ] */) {
+ 'use strict';
+ var position = arguments.length > 1 ? arguments[1] : undefined;
+ // 1. Let O be ? RequireObjectCoercible(this value).
+ var O = RequireObjectCoercible(this);
+ // 2. Let S be ? ToString(O).
+ var S = ToString(O);
+ // 3. Let isRegExp be ? IsRegExp(searchString).
+ var isRegExp = IsRegExp(searchString);
+ // 4. If isRegExp is true, throw a TypeError exception.
+ if (isRegExp) {
+ throw new TypeError('First argument to String.prototype.includes must not be a regular expression');
+ }
+ // 5. Let searchStr be ? ToString(searchString).
+ var searchStr = ToString(searchString);
+ // 6. Let pos be ? ToInteger(position). (If position is undefined, this step produces the value 0.)
+ var pos = ToInteger(position);
+ // 7. Let len be the length of S.
+ var len = S.length;
+ // 8. Let start be min(max(pos, 0), len).
+ var start = Math.min(Math.max(pos, 0), len);
+ // 9. Let searchLen be the length of searchStr.
+ // var searchLength = searchStr.length;
+ // 10. If there exists any integer k not smaller than start such that k + searchLen is not greater than len, and for all nonnegative integers j less than searchLen, the code unit at index k+j within S is the same as the code unit at index j within searchStr, return true; but if there is no such integer k, return false.
+ return String.prototype.indexOf.call(S, searchStr, start) !== -1;
+});
+
+}
+
+
+// _ArrayIterator
+/* global Iterator */
+// A modification of https://github.com/medikoo/es6-iterator
+// Copyright (C) 2013-2015 Mariusz Nowak (www.medikoo.com)
+
+var ArrayIterator = (function() { // eslint-disable-line no-unused-vars
+
+ var ArrayIterator = function(arr, kind) {
+ if (!(this instanceof ArrayIterator)) return new ArrayIterator(arr, kind);
+ Iterator.call(this, arr);
+ if (!kind) kind = 'value';
+ else if (String.prototype.includes.call(kind, 'key+value')) kind = 'key+value';
+ else if (String.prototype.includes.call(kind, 'key')) kind = 'key';
+ else kind = 'value';
+ Object.defineProperty(this, '__kind__', {
+ value: kind,
+ configurable: false,
+ enumerable: false,
+ writable: false
+ });
+ };
+ if (Object.setPrototypeOf) Object.setPrototypeOf(ArrayIterator, Iterator.prototype);
+
+ ArrayIterator.prototype = Object.create(Iterator.prototype, {
+ constructor: {
+ value: ArrayIterator,
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _resolve: {
+ value: function(i) {
+ if (this.__kind__ === 'value') return this.__list__[i];
+ if (this.__kind__ === 'key+value') return [i, this.__list__[i]];
+ return i;
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ toString: {
+ value: function() {
+ return '[object Array Iterator]';
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ }
+ });
+
+ return ArrayIterator;
+}());
+if (!('values' in Array.prototype)) {
+
+// Array.prototype.values
+/* global CreateMethodProperty, Symbol, ToObject */
+// 22.1.3.30/ Array.prototype.values ( )
+// Polyfill.io - Firefox, Chrome and Opera have Array.prototype[Symbol.iterator], which is the exact same function as Array.prototype.values.
+if ('Symbol' in this && 'iterator' in Symbol && typeof Array.prototype[Symbol.iterator] === 'function') {
+ CreateMethodProperty(Array.prototype, 'values', Array.prototype[Symbol.iterator]);
+} else {
+ CreateMethodProperty(Array.prototype, 'values', function values () {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Return CreateArrayIterator(O, "value").
+ // TODO: Add CreateArrayIterator
+ return new ArrayIterator(O, 'value');
+ });
+}
+
+}
+
+if (!('Symbol' in this && 'iterator' in this.Symbol && !!Array.prototype[Symbol.iterator])) {
+
+// Array.prototype.@@iterator
+/* global Symbol, CreateMethodProperty */
+// 22.1.3.31. Array.prototype [ @@iterator ] ( )
+// The initial value of the @@iterator property is the same function object as the initial value of the Array.prototype.values property.
+CreateMethodProperty(Array.prototype, Symbol.iterator, Array.prototype.values);
+
+}
+
+if (!('copyWithin' in Array.prototype && (function () {
+ try {
+ var Parent = function Parent() {};
+ Parent.prototype[0] = 'foo';
+ var sparse = new Parent();
+ sparse[1] = 1;
+ sparse[2] = 2;
+ sparse.length = 3;
+ var result = Array.prototype.copyWithin.call(sparse, 1, 0);
+ if (result['0'] && !Object.prototype.hasOwnProperty.call(result, '0') && Object.prototype.hasOwnProperty.call(result, '1') && result[0] === 'foo' && result[1] === 'foo' && result[2] === 1 && result.length === 3) {
+ return true;
+ } else {
+ return false;
+ }
+ } catch (err) {
+ return false;
+ }
+}()))) {
+
+// Array.prototype.copyWithin
+/* global CreateMethodProperty, HasProperty, ToInteger */
+// 22.1.3.3 Array.prototype.copyWithin ( target, start [ , end ] )
+CreateMethodProperty(Array.prototype, 'copyWithin', function copyWithin(target, start /* [ , end ] */ ) {
+ 'use strict';
+ var end = arguments[2];
+
+ // 22.1.3.3.1 Let O be ? ToObject(this value).
+ if (this === null || this === undefined) {
+ throw new TypeError('Cannot call method on ' + this);
+ }
+
+ var o = Object(this);
+
+ // 22.1.3.3.2 Let len be ? ToLength(? Get(O, "length")).
+ var len = ToInteger(o.length);
+ if (len <= 0) {
+ len = 0;
+ }
+ if (len === Infinity) {
+ len = Math.pow(2, 53) - 1;
+ } else {
+ len = Math.min(len, Math.pow(2, 53) - 1);
+ }
+ len = Math.max(len, 0);
+
+ // 22.1.3.3.3 Let relativeTarget be ? ToInteger(target).
+ var relativeTarget = ToInteger(target);
+
+ // 22.1.3.3.4 If relativeTarget < 0, let to be max((len + relativeTarget), 0); else let to be min(relativeTarget, len).
+ var to;
+ if (relativeTarget < 0) {
+ to = Math.max(len + relativeTarget, 0);
+ } else {
+ to = Math.min(relativeTarget, len);
+ }
+
+ // 22.1.3.3.5 Let relativeStart be ? ToInteger(start).
+ var relativeStart = ToInteger(start);
+
+ // 22.1.3.3.6 If relativeStart < 0, let from be max((len + relativeStart), 0); else let from be min(relativeStart, len).
+ var from;
+ if (relativeStart < 0) {
+ from = Math.max(len + relativeStart, 0);
+ } else {
+ from = Math.min(relativeStart, len);
+ }
+
+ // 22.1.3.3.7 If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToInteger(end).
+ var relativeEnd;
+ if (end === undefined) {
+ relativeEnd = len;
+ } else {
+ relativeEnd = ToInteger(end);
+ }
+
+ // 22.1.3.3.8 If relativeEnd < 0, let final be max((len + relativeEnd), 0); else let final be min(relativeEnd, len).
+ var final;
+ if (relativeEnd < 0) {
+ final = Math.max(len + relativeEnd, 0);
+ } else {
+ final = Math.min(relativeEnd, len);
+ }
+
+ // 22.1.3.3.9 Let count be min(final-from, len-to).
+ var count = Math.min(final - from, len - to);
+
+ // 22.1.3.3.10 If from<to and to<from+count, then
+ var direction;
+ if (from < to && to < from + count) {
+ // 22.1.3.3.10.a Let direction be -1.
+ direction = -1;
+
+ // 22.1.3.3.10.b Let from be from + count - 1.
+ from = from + count - 1;
+
+ // 22.1.3.3.10.c Let to be to + count - 1.
+ to = to + count - 1;
+ } else {
+ // 22.1.3.3.11 Else,
+ // 22.1.3.3.11.a Let direction be 1.
+ direction = 1;
+ }
+
+ // 22.1.3.3.12 Repeat, while count > 0
+ while (count > 0) {
+ // 22.1.3.3.12.a Let fromKey be ! ToString(from).
+ var fromKey = String(from);
+ // 22.1.3.3.12.b Let toKey be ! ToString(to).
+ var toKey = String(to);
+ // 22.1.3.3.12.c Let fromPresent be ? HasProperty(O, fromKey).
+ var fromPresent = HasProperty(o, fromKey);
+ // 22.1.3.3.12.d If fromPresent is true, then
+ if (fromPresent) {
+ // 22.1.3.3.12.d.i Let fromVal be ? Get(O, fromKey).
+ var fromVal = o[fromKey];
+ // 22.1.3.3.12.d.ii Perform ? Set(O, toKey, fromVal, true).
+ o[toKey] = fromVal;
+ } else {
+ // 22.1.3.3.12.e Else fromPresent is false,
+ // 22.1.3.3.12.e.i Perform ? DeletePropertyOrThrow(O, toKey).
+ delete o[toKey];
+ }
+ // 22.1.3.3.12.f Let from be from + direction.
+ from = from + direction;
+ // 22.1.3.3.12.g Let to be to + direction.
+ to = to + direction;
+ // 22.1.3.3.12.h Let count be count - 1.
+ count = count - 1;
+ }
+ // 22.1.3.3.13 Return O.
+ return o;
+});
+
+}
+
+if (!('Symbol' in this && 'iterator' in this.Symbol && !!Array.prototype.entries)) {
+
+// Array.prototype.entries
+/* global CreateMethodProperty, ToObject */
+// 22.1.3.4. Array.prototype.entries ( )
+CreateMethodProperty(Array.prototype, 'entries', function entries() {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Return CreateArrayIterator(O, "key+value").
+ // TODO: Add CreateArrayIterator
+ return new ArrayIterator(O, 'key+value');
+});
+
+}
+
+if (!('fill' in Array.prototype)) {
+
+// Array.prototype.fill
+/* global CreateMethodProperty, Get, ToInteger, ToLength, ToObject, ToString */
+// 22.1.3.6. Array.prototype.fill ( value [ , start [ , end ] ] )
+CreateMethodProperty(Array.prototype, 'fill', function fill(value /* [ , start [ , end ] ] */) {
+ var start = arguments[1];
+ var end = arguments[2];
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. Let relativeStart be ? ToInteger(start).
+ var relativeStart = ToInteger(start);
+ // 4. If relativeStart < 0, let k be max((len + relativeStart), 0); else let k be min(relativeStart, len)
+ var k = relativeStart < 0 ? Math.max((len + relativeStart), 0) : Math.min(relativeStart, len);
+ // 5. If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToInteger(end).
+ var relativeEnd = end === undefined ? len : ToInteger(end);
+ // 6. If relativeEnd < 0, let final be max((len + relativeEnd), 0); else let final be min(relativeEnd, len).
+ var final = relativeEnd < 0 ? Math.max((len + relativeEnd), 0) : Math.min(relativeEnd, len);
+ // 7. Repeat, while k < final
+ while (k < final) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Perform ? Set(O, Pk, value, true).
+ O[Pk] = value;
+ // c. Increase k by 1.
+ k = k + 1;
+ }
+ // 8. Return O.
+ return O;
+});
+
+}
+
+if (!('find' in Array.prototype)) {
+
+// Array.prototype.find
+/* global Call, CreateMethodProperty, Get, IsCallable, ToBoolean, ToLength, ToObject, ToString */
+// 22.1.3.8 Array.prototype.find ( predicate [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'find', function find( predicate /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(predicate) is false, throw a TypeError exception.
+ if (IsCallable(predicate) === false) {
+ throw new TypeError(predicate + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let k be 0.
+ var k = 0;
+ // 6. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kValue be ? Get(O, Pk).
+ var kValue = Get(O, Pk);
+ // c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
+ var testResult = ToBoolean(Call(predicate, T, [kValue, k, O ]));
+ // d. If testResult is true, return kValue.
+ if (testResult) {
+ return kValue;
+ }
+ // e. Increase k by 1.
+ var k = k + 1;
+ }
+ // 7. Return undefined.
+ return undefined;
+});
+
+}
+
+if (!('findIndex' in Array.prototype)) {
+
+// Array.prototype.findIndex
+/* global Call, CreateMethodProperty, Get, IsCallable, ToBoolean, ToLength, ToObject, ToString */
+// 22.1.3.9. Array.prototype.findIndex ( predicate [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'findIndex', function findIndex(predicate /* [ , thisArg ] */) {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Let len be ? ToLength(? Get(O, "length")).
+ var len = ToLength(Get(O, "length"));
+ // 3. If IsCallable(predicate) is false, throw a TypeError exception.
+ if (IsCallable(predicate) === false) {
+ throw new TypeError(predicate + ' is not a function');
+ }
+ // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+ var T = arguments.length > 1 ? arguments[1] : undefined;
+ // 5. Let k be 0.
+ var k = 0;
+ // 6. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ! ToString(k).
+ var Pk = ToString(k);
+ // b. Let kValue be ? Get(O, Pk).
+ var kValue = Get(O, Pk);
+ // c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
+ var testResult = ToBoolean(Call(predicate, T, [kValue, k, O]));
+ // d. If testResult is true, return k.
+ if (testResult) {
+ return k;
+ }
+ // e. Increase k by 1.
+ k = k + 1;
+ }
+ // 7. Return -1.
+ return -1;
+});
+
+}
+
+if (!('Symbol' in this && 'iterator' in this.Symbol && !!Array.prototype.keys)) {
+
+// Array.prototype.keys
+/* global CreateMethodProperty, ToObject */
+// 22.1.3.14. Array.prototype.keys ( )
+CreateMethodProperty(Array.prototype, 'keys', function keys() {
+ // 1. Let O be ? ToObject(this value).
+ var O = ToObject(this);
+ // 2. Return CreateArrayIterator(O, "key").
+ // TODO: Add CreateArrayIterator.
+ return new ArrayIterator(O, 'key');
+});
+
+}
+
+if (!('name' in Function.prototype && (function x() {}).name === 'x')) {
+
+// Function.name
+(function () {
+
+ var
+ accessorName = 'name',
+ fnNameMatchRegex = /^\s*function\s+([^\(\s]*)\s*/,
+ $Function = Function,
+ FunctionName = 'Function',
+ FunctionProto = $Function.prototype,
+ FunctionProtoCtor = FunctionProto.constructor,
+
+ getFunctionName = function(fn) {
+ var match, name;
+
+ if (fn === $Function || fn === FunctionProtoCtor) {
+ name = FunctionName;
+ }
+ else if (fn !== FunctionProto) {
+ match = ('' + fn).match(fnNameMatchRegex);
+ name = match && match[1];
+ }
+ return name || '';
+ };
+
+
+ Object.defineProperty(FunctionProto, accessorName, {
+ get: function Function$name() {
+ var
+ fn = this,
+ fnName = getFunctionName(fn);
+
+ // Since named function definitions have immutable names, also memoize the
+ // output by defining the `name` property directly on this Function
+ // instance so the accessor function will not need to be invoked again.
+ if (fn !== FunctionProto) {
+ Object.defineProperty(fn, accessorName, {
+ value: fnName,
+ configurable: true
+ });
+ }
+
+ return fnName;
+ },
+ configurable: true
+ });
+
+}());
+
+}
+
+if (!('acosh' in Math)) {
+
+// Math.acosh
+/* global CreateMethodProperty */
+// 20.2.2.3. Math.acosh ( x )
+CreateMethodProperty(Math, 'acosh', function acosh(x) {
+ // If x is NaN, the result is NaN.
+ if (isNaN(x)) {
+ return NaN;
+ }
+ // If x is less than 1, the result is NaN.
+ if (x < 1) {
+ return NaN;
+ }
+ // If x is 1, the result is +0.
+ if (x === 1) {
+ return 0;
+ }
+ // If x is +∞, the result is +∞.
+ if (x === Infinity) {
+ return Infinity;
+ }
+ return Math.log(x + Math.sqrt(x * x - 1));
+});
+
+}
+
+if (!('asinh' in Math)) {
+
+// Math.asinh
+/* global CreateMethodProperty */
+// 20.2.2.5. Math.asinh ( x )
+CreateMethodProperty(Math, 'asinh', function asinh(x) {
+ // If x is NaN, the result is NaN.
+ if (isNaN(x)) {
+ return NaN;
+ }
+ // If x is +0, the result is +0.
+ if (x === 0 && 1/x === Infinity) {
+ return 0;
+ }
+ // If x is -0, the result is -0.
+ if (x === 0 && 1/x === -Infinity) {
+ return -0;
+ }
+ // If x is +∞, the result is +∞.
+ if (x === Infinity) {
+ return Infinity;
+ }
+ // If x is -∞, the result is -∞.
+ if (x === -Infinity) {
+ return -Infinity;
+ }
+ return Math.log(x + Math.sqrt(x * x + 1));
+});
+
+}
+
+if (!('atanh' in Math)) {
+
+// Math.atanh
+/* global CreateMethodProperty */
+// 20.2.2.7. Math.atanh ( x )
+CreateMethodProperty(Math, 'atanh', function atanh(x) {
+ // If x is NaN, the result is NaN.
+ if (isNaN(x)) {
+ return NaN;
+ }
+ // If x is less than -1, the result is NaN.
+ if (x < -1) {
+ return NaN;
+ }
+ // If x is greater than 1, the result is NaN.
+ if (x > 1) {
+ return NaN;
+ }
+ // If x is -1, the result is -∞.
+ if (x === -1) {
+ return -Infinity;
+ }
+ // If x is +1, the result is +∞.
+ if (x === 1) {
+ return Infinity;
+ }
+ // If x is +0, the result is +0.
+ if (x === 0 && 1/x === Infinity) {
+ return 0;
+ }
+ // If x is -0, the result is -0.
+ if (x === 0 && 1/x === -Infinity) {
+ return -0;
+ }
+ return Math.log((1 + x) / (1 - x)) / 2;
+});
+
+}
+
+if (!('cbrt' in Math)) {
+
+// Math.cbrt
+/* global CreateMethodProperty */
+// 20.2.2.9. Math.cbrt ( x )
+CreateMethodProperty(Math, 'cbrt', function cbrt(x) {
+ // If x is NaN, the result is NaN.
+ if (isNaN(x)) {
+ return NaN;
+ }
+ // If x is +0, the result is +0.
+ if (x === 0 && 1/x === Infinity) {
+ return 0;
+ }
+ // If x is -0, the result is -0.
+ if (x === 0 && 1/x === -Infinity) {
+ return -0;
+ }
+ // If x is +∞, the result is +∞.
+ if (x === Infinity) {
+ return Infinity;
+ }
+ // If x is -∞, the result is -∞.
+ if (x === -Infinity) {
+ return -Infinity;
+ }
+ var y = Math.pow(Math.abs(x), 1 / 3);
+ return x < 0 ? -y : y;
+});
+
+}
+
+
+// _ESAbstract.ToUint32
+// 7.1.6. ToUint32 ( argument )
+function ToUint32(argument) { // eslint-disable-line no-unused-vars
+ // 1. Let number be ? ToNumber(argument).
+ var number = Number(argument);
+ // 2. If number is NaN, +0, -0, +∞, or -∞, return +0.
+ if (isNaN(number) || 1/number === Infinity || 1/number === -Infinity || number === Infinity || number === -Infinity) {
+ return 0;
+ }
+ // 3. Let int be the mathematical value that is the same sign as number and whose magnitude is floor(abs(number)).
+ var int = ((number < 0) ? -1 : 1) * Math.floor(Math.abs(number));
+ // 4. Let int32bit be int modulo 2^32.
+ var int32bit = int >>> 0;
+ // 5. Return int32bit.
+ return int32bit;
+}
+if (!('clz32' in Math)) {
+
+// Math.clz32
+/* global CreateMethodProperty, ToUint32 */
+// 20.2.2.11. Math.clz32 ( x )
+CreateMethodProperty(Math, 'clz32', function clz32(x) {
+ // 1. Let n be ToUint32(x).
+ var n = ToUint32(x);
+ // 2. Let p be the number of leading zero bits in the 32-bit binary representation of n.
+ var p = n ? 32 - n.toString(2).length : 32;
+ // 3. Return p.
+ return p;
+});
+
+}
+
+if (!('cosh' in Math)) {
+
+// Math.cosh
+/* global CreateMethodProperty */
+// 20.2.2.1. 3Math.cosh ( x )
+CreateMethodProperty(Math, 'cosh', function cosh(x) {
+ // If x is NaN, the result is NaN.
+ if (isNaN(x)) {
+ return NaN;
+ }
+ // If x is +0, the result is 1.
+ if (x === 0 && 1/x === Infinity) {
+ return 1;
+ }
+ // If x is -0, the result is 1.
+ if (x === 0 && 1/x === -Infinity) {
+ return 1;
+ }
+ // If x is +∞, the result is +∞.
+ if (x === Infinity) {
+ return Infinity;
+ }
+ // If x is -∞, the result is +∞.
+ if (x === -Infinity) {
+ return Infinity;
+ }
+ x = Math.abs(x);
+ if (x > 709) {
+ var y = Math.exp(0.5 * x);
+ return y / 2 * y;
+ }
+ var y = Math.exp(x);
+ return (y + 1 / y) / 2;
+});
+
+}
+
+if (!('expm1' in Math)) {
+
+// Math.expm1
+/* global CreateMethodProperty */
+// 20.2.2.15. Math.expm1 ( x )
+CreateMethodProperty(Math, 'expm1', function expm1(x) {
+ // If x is NaN, the result is NaN.
+ if (isNaN(x)) {
+ return NaN;
+ }
+ // If x is +0, the result is +0.
+ if (x === 0 && 1/x === Infinity) {
+ return 0;
+ }
+ // If x is -0, the result is -0.
+ if (x === 0 && 1/x === -Infinity) {
+ return -0;
+ }
+ // If x is +∞, the result is +∞.
+ if (x === Infinity) {
+ return Infinity;
+ }
+ // If x is -∞, the result is -1.
+ if (x === -Infinity) {
+ return -1;
+ }
+
+ if (x > -1e-6 && x < 1e-6) {
+ return x + x * x / 2;
+ } else {
+ return Math.exp(x) - 1;
+ }
+});
+
+}
+
+
+// _TypedArray
+/*
+ Copyright (c) 2010, Linden Research, Inc.
+ Copyright (c) 2014, Joshua Bell
+
+ 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.
+ $/LicenseInfo$
+ */
+
+// Original can be found at:
+// https://bitbucket.org/lindenlab/llsd
+// Modifications by Joshua Bell inexorabletash@gmail.com
+// https://github.com/inexorabletash/polyfill
+
+// ES3/ES5 implementation of the Krhonos Typed Array Specification
+// Ref: http://www.khronos.org/registry/typedarray/specs/latest/
+// Date: 2011-02-01
+//
+// Variations:
+// * Allows typed_array.get/set() as alias for subscripts (typed_array[])
+// * Gradually migrating structure from Khronos spec to ES2015 spec
+//
+// Caveats:
+// * Beyond 10000 or so entries, polyfilled array accessors (ta[0],
+// etc) become memory-prohibitive, so array creation will fail. Set
+// self.TYPED_ARRAY_POLYFILL_NO_ARRAY_ACCESSORS=true to disable
+// creation of accessors. Your code will need to use the
+// non-standard get()/set() instead, and will need to add those to
+// native arrays for interop.
+(function(global) {
+ 'use strict';
+ var undefined = (void 0); // Paranoia
+
+ // Beyond this value, index getters/setters (i.e. array[0], array[1]) are so slow to
+ // create, and consume so much memory, that the browser appears frozen.
+ var MAX_ARRAY_LENGTH = 1e5;
+
+ // Approximations of internal ECMAScript conversion functions
+ function Type(v) {
+ switch(typeof v) {
+ case 'undefined': return 'undefined';
+ case 'boolean': return 'boolean';
+ case 'number': return 'number';
+ case 'string': return 'string';
+ default: return v === null ? 'null' : 'object';
+ }
+ }
+
+ // Class returns internal [[Class]] property, used to avoid cross-frame instanceof issues:
+ function Class(v) { return Object.prototype.toString.call(v).replace(/^\[object *|\]$/g, ''); }
+ function IsCallable(o) { return typeof o === 'function'; }
+ function ToObject(v) {
+ if (v === null || v === undefined) throw TypeError();
+ return Object(v);
+ }
+ function ToInt32(v) { return v >> 0; }
+ function ToUint32(v) { return v >>> 0; }
+
+ // Snapshot intrinsics
+ var LN2 = Math.LN2,
+ abs = Math.abs,
+ floor = Math.floor,
+ log = Math.log,
+ max = Math.max,
+ min = Math.min,
+ pow = Math.pow,
+ round = Math.round;
+
+ // emulate ES5 getter/setter API using legacy APIs
+ // http://blogs.msdn.com/b/ie/archive/2010/09/07/transitioning-existing-code-to-the-es5-getter-setter-apis.aspx
+ // (second clause tests for Object.defineProperty() in IE<9 that only supports extending DOM prototypes, but
+ // note that IE<9 does not support __defineGetter__ or __defineSetter__ so it just renders the method harmless)
+
+ (function() {
+ var orig = Object.defineProperty;
+ var dom_only = !(function(){try{return Object.defineProperty({},'x',{});}catch(_){return false;}}());
+
+ if (!orig || dom_only) {
+ Object.defineProperty = function (o, prop, desc) {
+ // In IE8 try built-in implementation for defining properties on DOM prototypes.
+ if (orig)
+ try { return orig(o, prop, desc); } catch (_) {}
+ if (o !== Object(o))
+ throw TypeError('Object.defineProperty called on non-object');
+ if (Object.prototype.__defineGetter__ && ('get' in desc))
+ Object.prototype.__defineGetter__.call(o, prop, desc.get);
+ if (Object.prototype.__defineSetter__ && ('set' in desc))
+ Object.prototype.__defineSetter__.call(o, prop, desc.set);
+ if ('value' in desc)
+ o[prop] = desc.value;
+ return o;
+ };
+ }
+ }());
+
+ // ES5: Make obj[index] an alias for obj._getter(index)/obj._setter(index, value)
+ // for index in 0 ... obj.length
+ function makeArrayAccessors(obj) {
+ if ('TYPED_ARRAY_POLYFILL_NO_ARRAY_ACCESSORS' in global)
+ return;
+
+ if (obj.length > MAX_ARRAY_LENGTH) throw RangeError('Array too large for polyfill');
+
+ function makeArrayAccessor(index) {
+ Object.defineProperty(obj, index, {
+ 'get': function() { return obj._getter(index); },
+ 'set': function(v) { obj._setter(index, v); },
+ enumerable: true,
+ configurable: false
+ });
+ }
+
+ var i;
+ for (i = 0; i < obj.length; i += 1) {
+ makeArrayAccessor(i);
+ }
+ }
+
+ // Internal conversion functions:
+ // pack<Type>() - take a number (interpreted as Type), output a byte array
+ // unpack<Type>() - take a byte array, output a Type-like number
+
+ function as_signed(value, bits) { var s = 32 - bits; return (value << s) >> s; }
+ function as_unsigned(value, bits) { var s = 32 - bits; return (value << s) >>> s; }
+
+ function packI8(n) { return [n & 0xff]; }
+ function unpackI8(bytes) { return as_signed(bytes[0], 8); }
+
+ function packU8(n) { return [n & 0xff]; }
+ function unpackU8(bytes) { return as_unsigned(bytes[0], 8); }
+
+ function packU8Clamped(n) { n = round(Number(n)); return [n < 0 ? 0 : n > 0xff ? 0xff : n & 0xff]; }
+
+ function packI16(n) { return [n & 0xff, (n >> 8) & 0xff]; }
+ function unpackI16(bytes) { return as_signed(bytes[1] << 8 | bytes[0], 16); }
+
+ function packU16(n) { return [n & 0xff, (n >> 8) & 0xff]; }
+ function unpackU16(bytes) { return as_unsigned(bytes[1] << 8 | bytes[0], 16); }
+
+ function packI32(n) { return [n & 0xff, (n >> 8) & 0xff, (n >> 16) & 0xff, (n >> 24) & 0xff]; }
+ function unpackI32(bytes) { return as_signed(bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0], 32); }
+
+ function packU32(n) { return [n & 0xff, (n >> 8) & 0xff, (n >> 16) & 0xff, (n >> 24) & 0xff]; }
+ function unpackU32(bytes) { return as_unsigned(bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0], 32); }
+
+ function packIEEE754(v, ebits, fbits) {
+
+ var bias = (1 << (ebits - 1)) - 1;
+
+ function roundToEven(n) {
+ var w = floor(n), f = n - w;
+ if (f < 0.5)
+ return w;
+ if (f > 0.5)
+ return w + 1;
+ return w % 2 ? w + 1 : w;
+ }
+
+ // Compute sign, exponent, fraction
+ var s, e, f;
+ if (v !== v) {
+ // NaN
+ // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+ e = (1 << ebits) - 1; f = pow(2, fbits - 1); s = 0;
+ } else if (v === Infinity || v === -Infinity) {
+ e = (1 << ebits) - 1; f = 0; s = (v < 0) ? 1 : 0;
+ } else if (v === 0) {
+ e = 0; f = 0; s = (1 / v === -Infinity) ? 1 : 0;
+ } else {
+ s = v < 0;
+ v = abs(v);
+
+ if (v >= pow(2, 1 - bias)) {
+ // Normalized
+ e = min(floor(log(v) / LN2), 1023);
+ var significand = v / pow(2, e);
+ if (significand < 1) {
+ e -= 1;
+ significand *= 2;
+ }
+ if (significand >= 2) {
+ e += 1;
+ significand /= 2;
+ }
+ var d = pow(2, fbits);
+ f = roundToEven(significand * d) - d;
+ e += bias;
+ if (f / d >= 1) {
+ e += 1;
+ f = 0;
+ }
+ if (e > 2 * bias) {
+ // Overflow
+ e = (1 << ebits) - 1;
+ f = 0;
+ }
+ } else {
+ // Denormalized
+ e = 0;
+ f = roundToEven(v / pow(2, 1 - bias - fbits));
+ }
+ }
+
+ // Pack sign, exponent, fraction
+ var bits = [], i;
+ for (i = fbits; i; i -= 1) { bits.push(f % 2 ? 1 : 0); f = floor(f / 2); }
+ for (i = ebits; i; i -= 1) { bits.push(e % 2 ? 1 : 0); e = floor(e / 2); }
+ bits.push(s ? 1 : 0);
+ bits.reverse();
+ var str = bits.join('');
+
+ // Bits to bytes
+ var bytes = [];
+ while (str.length) {
+ bytes.unshift(parseInt(str.substring(0, 8), 2));
+ str = str.substring(8);
+ }
+ return bytes;
+ }
+
+ function unpackIEEE754(bytes, ebits, fbits) {
+ // Bytes to bits
+ var bits = [], i, j, b, str,
+ bias, s, e, f;
+
+ for (i = 0; i < bytes.length; ++i) {
+ b = bytes[i];
+ for (j = 8; j; j -= 1) {
+ bits.push(b % 2 ? 1 : 0); b = b >> 1;
+ }
+ }
+ bits.reverse();
+ str = bits.join('');
+
+ // Unpack sign, exponent, fraction
+ bias = (1 << (ebits - 1)) - 1;
+ s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+ e = parseInt(str.substring(1, 1 + ebits), 2);
+ f = parseInt(str.substring(1 + ebits), 2);
+
+ // Produce number
+ if (e === (1 << ebits) - 1) {
+ return f !== 0 ? NaN : s * Infinity;
+ } else if (e > 0) {
+ // Normalized
+ return s * pow(2, e - bias) * (1 + f / pow(2, fbits));
+ } else if (f !== 0) {
+ // Denormalized
+ return s * pow(2, -(bias - 1)) * (f / pow(2, fbits));
+ } else {
+ return s < 0 ? -0 : 0;
+ }
+ }
+
+ function unpackF64(b) { return unpackIEEE754(b, 11, 52); }
+ function packF64(v) { return packIEEE754(v, 11, 52); }
+ function unpackF32(b) { return unpackIEEE754(b, 8, 23); }
+ function packF32(v) { return packIEEE754(v, 8, 23); }
+
+ //
+ // 3 The ArrayBuffer Type
+ //
+
+ (function() {
+
+ function ArrayBuffer(length) {
+ length = ToInt32(length);
+ if (length < 0) throw RangeError('ArrayBuffer size is not a small enough positive integer.');
+ Object.defineProperty(this, 'byteLength', {value: length});
+ Object.defineProperty(this, '_bytes', {value: Array(length)});
+
+ for (var i = 0; i < length; i += 1)
+ this._bytes[i] = 0;
+ }
+
+ global.ArrayBuffer = global.ArrayBuffer || ArrayBuffer;
+
+ //
+ // 5 The Typed Array View Types
+ //
+
+ function $TypedArray$() {
+
+ // %TypedArray% ( length )
+ if (!arguments.length || typeof arguments[0] !== 'object') {
+ return (function(length) {
+ length = ToInt32(length);
+ if (length < 0) throw RangeError('length is not a small enough positive integer.');
+ Object.defineProperty(this, 'length', {value: length});
+ Object.defineProperty(this, 'byteLength', {value: length * this.BYTES_PER_ELEMENT});
+ Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(this.byteLength)});
+ Object.defineProperty(this, 'byteOffset', {value: 0});
+
+ }).apply(this, arguments);
+ }
+
+ // %TypedArray% ( typedArray )
+ if (arguments.length >= 1 &&
+ Type(arguments[0]) === 'object' &&
+ arguments[0] instanceof $TypedArray$) {
+ return (function(typedArray){
+ if (this.constructor !== typedArray.constructor) throw TypeError();
+
+ var byteLength = typedArray.length * this.BYTES_PER_ELEMENT;
+ Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(byteLength)});
+ Object.defineProperty(this, 'byteLength', {value: byteLength});
+ Object.defineProperty(this, 'byteOffset', {value: 0});
+ Object.defineProperty(this, 'length', {value: typedArray.length});
+
+ for (var i = 0; i < this.length; i += 1)
+ this._setter(i, typedArray._getter(i));
+
+ }).apply(this, arguments);
+ }
+
+ // %TypedArray% ( array )
+ if (arguments.length >= 1 &&
+ Type(arguments[0]) === 'object' &&
+ !(arguments[0] instanceof $TypedArray$) &&
+ !(arguments[0] instanceof ArrayBuffer || Class(arguments[0]) === 'ArrayBuffer')) {
+ return (function(array) {
+
+ var byteLength = array.length * this.BYTES_PER_ELEMENT;
+ Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(byteLength)});
+ Object.defineProperty(this, 'byteLength', {value: byteLength});
+ Object.defineProperty(this, 'byteOffset', {value: 0});
+ Object.defineProperty(this, 'length', {value: array.length});
+
+ for (var i = 0; i < this.length; i += 1) {
+ var s = array[i];
+ this._setter(i, Number(s));
+ }
+ }).apply(this, arguments);
+ }
+
+ // %TypedArray% ( buffer, byteOffset=0, length=undefined )
+ if (arguments.length >= 1 &&
+ Type(arguments[0]) === 'object' &&
+ (arguments[0] instanceof ArrayBuffer || Class(arguments[0]) === 'ArrayBuffer')) {
+ return (function(buffer, byteOffset, length) {
+
+ byteOffset = ToUint32(byteOffset);
+ if (byteOffset > buffer.byteLength)
+ throw RangeError('byteOffset out of range');
+
+ // The given byteOffset must be a multiple of the element
+ // size of the specific type, otherwise an exception is raised.
+ if (byteOffset % this.BYTES_PER_ELEMENT)
+ throw RangeError('buffer length minus the byteOffset is not a multiple of the element size.');
+
+ if (length === undefined) {
+ var byteLength = buffer.byteLength - byteOffset;
+ if (byteLength % this.BYTES_PER_ELEMENT)
+ throw RangeError('length of buffer minus byteOffset not a multiple of the element size');
+ length = byteLength / this.BYTES_PER_ELEMENT;
+
+ } else {
+ length = ToUint32(length);
+ byteLength = length * this.BYTES_PER_ELEMENT;
+ }
+
+ if ((byteOffset + byteLength) > buffer.byteLength)
+ throw RangeError('byteOffset and length reference an area beyond the end of the buffer');
+
+ Object.defineProperty(this, 'buffer', {value: buffer});
+ Object.defineProperty(this, 'byteLength', {value: byteLength});
+ Object.defineProperty(this, 'byteOffset', {value: byteOffset});
+ Object.defineProperty(this, 'length', {value: length});
+
+ }).apply(this, arguments);
+ }
+
+ // %TypedArray% ( all other argument combinations )
+ throw TypeError();
+ }
+
+ // Properties of the %TypedArray Instrinsic Object
+
+ // %TypedArray%.from ( source , mapfn=undefined, thisArg=undefined )
+ Object.defineProperty($TypedArray$, 'from', {value: function(iterable) {
+ return new this(iterable);
+ }});
+
+ // %TypedArray%.of ( ...items )
+ Object.defineProperty($TypedArray$, 'of', {value: function(/*...items*/) {
+ return new this(arguments);
+ }});
+
+ // %TypedArray%.prototype
+ var $TypedArrayPrototype$ = {};
+ $TypedArray$.prototype = $TypedArrayPrototype$;
+
+ // WebIDL: getter type (unsigned long index);
+ Object.defineProperty($TypedArray$.prototype, '_getter', {value: function(index) {
+ if (arguments.length < 1) throw SyntaxError('Not enough arguments');
+
+ index = ToUint32(index);
+ if (index >= this.length)
+ return undefined;
+
+ var bytes = [], i, o;
+ for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
+ i < this.BYTES_PER_ELEMENT;
+ i += 1, o += 1) {
+ bytes.push(this.buffer._bytes[o]);
+ }
+ return this._unpack(bytes);
+ }});
+
+ // NONSTANDARD: convenience alias for getter: type get(unsigned long index);
+ Object.defineProperty($TypedArray$.prototype, 'get', {value: $TypedArray$.prototype._getter});
+
+ // WebIDL: setter void (unsigned long index, type value);
+ Object.defineProperty($TypedArray$.prototype, '_setter', {value: function(index, value) {
+ if (arguments.length < 2) throw SyntaxError('Not enough arguments');
+
+ index = ToUint32(index);
+ if (index >= this.length)
+ return;
+
+ var bytes = this._pack(value), i, o;
+ for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
+ i < this.BYTES_PER_ELEMENT;
+ i += 1, o += 1) {
+ this.buffer._bytes[o] = bytes[i];
+ }
+ }});
+
+ // get %TypedArray%.prototype.buffer
+ // get %TypedArray%.prototype.byteLength
+ // get %TypedArray%.prototype.byteOffset
+ // -- applied directly to the object in the constructor
+
+ // %TypedArray%.prototype.constructor
+ Object.defineProperty($TypedArray$.prototype, 'constructor', {value: $TypedArray$});
+
+ // %TypedArray%.prototype.copyWithin (target, start, end = this.length )
+ Object.defineProperty($TypedArray$.prototype, 'copyWithin', {value: function(target, start) {
+ var end = arguments[2];
+
+ var o = ToObject(this);
+ var lenVal = o.length;
+ var len = ToUint32(lenVal);
+ len = max(len, 0);
+ var relativeTarget = ToInt32(target);
+ var to;
+ if (relativeTarget < 0)
+ to = max(len + relativeTarget, 0);
+ else
+ to = min(relativeTarget, len);
+ var relativeStart = ToInt32(start);
+ var from;
+ if (relativeStart < 0)
+ from = max(len + relativeStart, 0);
+ else
+ from = min(relativeStart, len);
+ var relativeEnd;
+ if (end === undefined)
+ relativeEnd = len;
+ else
+ relativeEnd = ToInt32(end);
+ var final;
+ if (relativeEnd < 0)
+ final = max(len + relativeEnd, 0);
+ else
+ final = min(relativeEnd, len);
+ var count = min(final - from, len - to);
+ var direction;
+ if (from < to && to < from + count) {
+ direction = -1;
+ from = from + count - 1;
+ to = to + count - 1;
+ } else {
+ direction = 1;
+ }
+ while (count > 0) {
+ o._setter(to, o._getter(from));
+ from = from + direction;
+ to = to + direction;
+ count = count - 1;
+ }
+ return o;
+ }});
+
+ // %TypedArray%.prototype.entries ( )
+ // -- defined in es6.js to shim browsers w/ native TypedArrays
+
+ // %TypedArray%.prototype.every ( callbackfn, thisArg = undefined )
+ Object.defineProperty($TypedArray$.prototype, 'every', {value: function(callbackfn) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (!IsCallable(callbackfn)) throw TypeError();
+ var thisArg = arguments[1];
+ for (var i = 0; i < len; i++) {
+ if (!callbackfn.call(thisArg, t._getter(i), i, t))
+ return false;
+ }
+ return true;
+ }});
+
+ // %TypedArray%.prototype.fill (value, start = 0, end = this.length )
+ Object.defineProperty($TypedArray$.prototype, 'fill', {value: function(value) {
+ var start = arguments[1],
+ end = arguments[2];
+
+ var o = ToObject(this);
+ var lenVal = o.length;
+ var len = ToUint32(lenVal);
+ len = max(len, 0);
+ var relativeStart = ToInt32(start);
+ var k;
+ if (relativeStart < 0)
+ k = max((len + relativeStart), 0);
+ else
+ k = min(relativeStart, len);
+ var relativeEnd;
+ if (end === undefined)
+ relativeEnd = len;
+ else
+ relativeEnd = ToInt32(end);
+ var final;
+ if (relativeEnd < 0)
+ final = max((len + relativeEnd), 0);
+ else
+ final = min(relativeEnd, len);
+ while (k < final) {
+ o._setter(k, value);
+ k += 1;
+ }
+ return o;
+ }});
+
+ // %TypedArray%.prototype.filter ( callbackfn, thisArg = undefined )
+ Object.defineProperty($TypedArray$.prototype, 'filter', {value: function(callbackfn) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (!IsCallable(callbackfn)) throw TypeError();
+ var res = [];
+ var thisp = arguments[1];
+ for (var i = 0; i < len; i++) {
+ var val = t._getter(i); // in case fun mutates this
+ if (callbackfn.call(thisp, val, i, t))
+ res.push(val);
+ }
+ return new this.constructor(res);
+ }});
+
+ // %TypedArray%.prototype.find (predicate, thisArg = undefined)
+ Object.defineProperty($TypedArray$.prototype, 'find', {value: function(predicate) {
+ var o = ToObject(this);
+ var lenValue = o.length;
+ var len = ToUint32(lenValue);
+ if (!IsCallable(predicate)) throw TypeError();
+ var t = arguments.length > 1 ? arguments[1] : undefined;
+ var k = 0;
+ while (k < len) {
+ var kValue = o._getter(k);
+ var testResult = predicate.call(t, kValue, k, o);
+ if (Boolean(testResult))
+ return kValue;
+ ++k;
+ }
+ return undefined;
+ }});
+
+ // %TypedArray%.prototype.findIndex ( predicate, thisArg = undefined )
+ Object.defineProperty($TypedArray$.prototype, 'findIndex', {value: function(predicate) {
+ var o = ToObject(this);
+ var lenValue = o.length;
+ var len = ToUint32(lenValue);
+ if (!IsCallable(predicate)) throw TypeError();
+ var t = arguments.length > 1 ? arguments[1] : undefined;
+ var k = 0;
+ while (k < len) {
+ var kValue = o._getter(k);
+ var testResult = predicate.call(t, kValue, k, o);
+ if (Boolean(testResult))
+ return k;
+ ++k;
+ }
+ return -1;
+ }});
+
+ // %TypedArray%.prototype.forEach ( callbackfn, thisArg = undefined )
+ Object.defineProperty($TypedArray$.prototype, 'forEach', {value: function(callbackfn) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (!IsCallable(callbackfn)) throw TypeError();
+ var thisp = arguments[1];
+ for (var i = 0; i < len; i++)
+ callbackfn.call(thisp, t._getter(i), i, t);
+ }});
+
+ // %TypedArray%.prototype.indexOf (searchElement, fromIndex = 0 )
+ Object.defineProperty($TypedArray$.prototype, 'indexOf', {value: function(searchElement) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (len === 0) return -1;
+ var n = 0;
+ if (arguments.length > 0) {
+ n = Number(arguments[1]);
+ if (n !== n) {
+ n = 0;
+ } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
+ n = (n > 0 || -1) * floor(abs(n));
+ }
+ }
+ if (n >= len) return -1;
+ var k = n >= 0 ? n : max(len - abs(n), 0);
+ for (; k < len; k++) {
+ if (t._getter(k) === searchElement) {
+ return k;
+ }
+ }
+ return -1;
+ }});
+
+ // %TypedArray%.prototype.join ( separator )
+ Object.defineProperty($TypedArray$.prototype, 'join', {value: function(separator) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ var tmp = Array(len);
+ for (var i = 0; i < len; ++i)
+ tmp[i] = t._getter(i);
+ return tmp.join(separator === undefined ? ',' : separator); // Hack for IE7
+ }});
+
+ // %TypedArray%.prototype.keys ( )
+ // -- defined in es6.js to shim browsers w/ native TypedArrays
+
+ // %TypedArray%.prototype.lastIndexOf ( searchElement, fromIndex = this.length-1 )
+ Object.defineProperty($TypedArray$.prototype, 'lastIndexOf', {value: function(searchElement) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (len === 0) return -1;
+ var n = len;
+ if (arguments.length > 1) {
+ n = Number(arguments[1]);
+ if (n !== n) {
+ n = 0;
+ } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
+ n = (n > 0 || -1) * floor(abs(n));
+ }
+ }
+ var k = n >= 0 ? min(n, len - 1) : len - abs(n);
+ for (; k >= 0; k--) {
+ if (t._getter(k) === searchElement)
+ return k;
+ }
+ return -1;
+ }});
+
+ // get %TypedArray%.prototype.length
+ // -- applied directly to the object in the constructor
+
+ // %TypedArray%.prototype.map ( callbackfn, thisArg = undefined )
+ Object.defineProperty($TypedArray$.prototype, 'map', {value: function(callbackfn) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (!IsCallable(callbackfn)) throw TypeError();
+ var res = []; res.length = len;
+ var thisp = arguments[1];
+ for (var i = 0; i < len; i++)
+ res[i] = callbackfn.call(thisp, t._getter(i), i, t);
+ return new this.constructor(res);
+ }});
+
+ // %TypedArray%.prototype.reduce ( callbackfn [, initialValue] )
+ Object.defineProperty($TypedArray$.prototype, 'reduce', {value: function(callbackfn) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (!IsCallable(callbackfn)) throw TypeError();
+ // no value to return if no initial value and an empty array
+ if (len === 0 && arguments.length === 1) throw TypeError();
+ var k = 0;
+ var accumulator;
+ if (arguments.length >= 2) {
+ accumulator = arguments[1];
+ } else {
+ accumulator = t._getter(k++);
+ }
+ while (k < len) {
+ accumulator = callbackfn.call(undefined, accumulator, t._getter(k), k, t);
+ k++;
+ }
+ return accumulator;
+ }});
+
+ // %TypedArray%.prototype.reduceRight ( callbackfn [, initialValue] )
+ Object.defineProperty($TypedArray$.prototype, 'reduceRight', {value: function(callbackfn) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (!IsCallable(callbackfn)) throw TypeError();
+ // no value to return if no initial value, empty array
+ if (len === 0 && arguments.length === 1) throw TypeError();
+ var k = len - 1;
+ var accumulator;
+ if (arguments.length >= 2) {
+ accumulator = arguments[1];
+ } else {
+ accumulator = t._getter(k--);
+ }
+ while (k >= 0) {
+ accumulator = callbackfn.call(undefined, accumulator, t._getter(k), k, t);
+ k--;
+ }
+ return accumulator;
+ }});
+
+ // %TypedArray%.prototype.reverse ( )
+ Object.defineProperty($TypedArray$.prototype, 'reverse', {value: function() {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ var half = floor(len / 2);
+ for (var i = 0, j = len - 1; i < half; ++i, --j) {
+ var tmp = t._getter(i);
+ t._setter(i, t._getter(j));
+ t._setter(j, tmp);
+ }
+ return t;
+ }});
+
+ // %TypedArray%.prototype.set(array, offset = 0 )
+ // %TypedArray%.prototype.set(typedArray, offset = 0 )
+ // WebIDL: void set(TypedArray array, optional unsigned long offset);
+ // WebIDL: void set(sequence<type> array, optional unsigned long offset);
+ Object.defineProperty($TypedArray$.prototype, 'set', {value: function(index, value) {
+ if (arguments.length < 1) throw SyntaxError('Not enough arguments');
+ var array, sequence, offset, len,
+ i, s, d,
+ byteOffset, byteLength, tmp;
+
+ if (typeof arguments[0] === 'object' && arguments[0].constructor === this.constructor) {
+ // void set(TypedArray array, optional unsigned long offset);
+ array = arguments[0];
+ offset = ToUint32(arguments[1]);
+
+ if (offset + array.length > this.length) {
+ throw RangeError('Offset plus length of array is out of range');
+ }
+
+ byteOffset = this.byteOffset + offset * this.BYTES_PER_ELEMENT;
+ byteLength = array.length * this.BYTES_PER_ELEMENT;
+
+ if (array.buffer === this.buffer) {
+ tmp = [];
+ for (i = 0, s = array.byteOffset; i < byteLength; i += 1, s += 1) {
+ tmp[i] = array.buffer._bytes[s];
+ }
+ for (i = 0, d = byteOffset; i < byteLength; i += 1, d += 1) {
+ this.buffer._bytes[d] = tmp[i];
+ }
+ } else {
+ for (i = 0, s = array.byteOffset, d = byteOffset;
+ i < byteLength; i += 1, s += 1, d += 1) {
+ this.buffer._bytes[d] = array.buffer._bytes[s];
+ }
+ }
+ } else if (typeof arguments[0] === 'object' && typeof arguments[0].length !== 'undefined') {
+ // void set(sequence<type> array, optional unsigned long offset);
+ sequence = arguments[0];
+ len = ToUint32(sequence.length);
+ offset = ToUint32(arguments[1]);
+
+ if (offset + len > this.length) {
+ throw RangeError('Offset plus length of array is out of range');
+ }
+
+ for (i = 0; i < len; i += 1) {
+ s = sequence[i];
+ this._setter(offset + i, Number(s));
+ }
+ } else {
+ throw TypeError('Unexpected argument type(s)');
+ }
+ }});
+
+ // %TypedArray%.prototype.slice ( start, end )
+ Object.defineProperty($TypedArray$.prototype, 'slice', {value: function(start, end) {
+ var o = ToObject(this);
+ var lenVal = o.length;
+ var len = ToUint32(lenVal);
+ var relativeStart = ToInt32(start);
+ var k = (relativeStart < 0) ? max(len + relativeStart, 0) : min(relativeStart, len);
+ var relativeEnd = (end === undefined) ? len : ToInt32(end);
+ var final = (relativeEnd < 0) ? max(len + relativeEnd, 0) : min(relativeEnd, len);
+ var count = final - k;
+ var c = o.constructor;
+ var a = new c(count);
+ var n = 0;
+ while (k < final) {
+ var kValue = o._getter(k);
+ a._setter(n, kValue);
+ ++k;
+ ++n;
+ }
+ return a;
+ }});
+
+ // %TypedArray%.prototype.some ( callbackfn, thisArg = undefined )
+ Object.defineProperty($TypedArray$.prototype, 'some', {value: function(callbackfn) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ if (!IsCallable(callbackfn)) throw TypeError();
+ var thisp = arguments[1];
+ for (var i = 0; i < len; i++) {
+ if (callbackfn.call(thisp, t._getter(i), i, t)) {
+ return true;
+ }
+ }
+ return false;
+ }});
+
+ // %TypedArray%.prototype.sort ( comparefn )
+ Object.defineProperty($TypedArray$.prototype, 'sort', {value: function(comparefn) {
+ if (this === undefined || this === null) throw TypeError();
+ var t = Object(this);
+ var len = ToUint32(t.length);
+ var tmp = Array(len);
+ for (var i = 0; i < len; ++i)
+ tmp[i] = t._getter(i);
+ function sortCompare(x, y) {
+ if (x !== x && y !== y) return +0;
+ if (x !== x) return 1;
+ if (y !== y) return -1;
+ if (comparefn !== undefined) {
+ return comparefn(x, y);
+ }
+ if (x < y) return -1;
+ if (x > y) return 1;
+ return +0;
+ }
+ tmp.sort(sortCompare);
+ for (i = 0; i < len; ++i)
+ t._setter(i, tmp[i]);
+ return t;
+ }});
+
+ // %TypedArray%.prototype.subarray(begin = 0, end = this.length )
+ // WebIDL: TypedArray subarray(long begin, optional long end);
+ Object.defineProperty($TypedArray$.prototype, 'subarray', {value: function(start, end) {
+ function clamp(v, min, max) { return v < min ? min : v > max ? max : v; }
+
+ start = ToInt32(start);
+ end = ToInt32(end);
+
+ if (arguments.length < 1) { start = 0; }
+ if (arguments.length < 2) { end = this.length; }
+
+ if (start < 0) { start = this.length + start; }
+ if (end < 0) { end = this.length + end; }
+
+ start = clamp(start, 0, this.length);
+ end = clamp(end, 0, this.length);
+
+ var len = end - start;
+ if (len < 0) {
+ len = 0;
+ }
+
+ return new this.constructor(
+ this.buffer, this.byteOffset + start * this.BYTES_PER_ELEMENT, len);
+ }});
+
+ // %TypedArray%.prototype.toLocaleString ( )
+ // %TypedArray%.prototype.toString ( )
+ // %TypedArray%.prototype.values ( )
+ // %TypedArray%.prototype [ @@iterator ] ( )
+ // get %TypedArray%.prototype [ @@toStringTag ]
+ // -- defined in es6.js to shim browsers w/ native TypedArrays
+
+ function makeTypedArray(elementSize, pack, unpack) {
+ // Each TypedArray type requires a distinct constructor instance with
+ // identical logic, which this produces.
+ var TypedArray = function() {
+ Object.defineProperty(this, 'constructor', {value: TypedArray});
+ $TypedArray$.apply(this, arguments);
+ makeArrayAccessors(this);
+ };
+ if ('__proto__' in TypedArray) {
+ TypedArray.__proto__ = $TypedArray$;
+ } else {
+ TypedArray.from = $TypedArray$.from;
+ TypedArray.of = $TypedArray$.of;
+ }
+
+ TypedArray.BYTES_PER_ELEMENT = elementSize;
+
+ var TypedArrayPrototype = function() {};
+ TypedArrayPrototype.prototype = $TypedArrayPrototype$;
+
+ TypedArray.prototype = new TypedArrayPrototype();
+
+ Object.defineProperty(TypedArray.prototype, 'BYTES_PER_ELEMENT', {value: elementSize});
+ Object.defineProperty(TypedArray.prototype, '_pack', {value: pack});
+ Object.defineProperty(TypedArray.prototype, '_unpack', {value: unpack});
+
+ return TypedArray;
+ }
+
+ var Int8Array = makeTypedArray(1, packI8, unpackI8);
+ var Uint8Array = makeTypedArray(1, packU8, unpackU8);
+ var Uint8ClampedArray = makeTypedArray(1, packU8Clamped, unpackU8);
+ var Int16Array = makeTypedArray(2, packI16, unpackI16);
+ var Uint16Array = makeTypedArray(2, packU16, unpackU16);
+ var Int32Array = makeTypedArray(4, packI32, unpackI32);
+ var Uint32Array = makeTypedArray(4, packU32, unpackU32);
+ var Float32Array = makeTypedArray(4, packF32, unpackF32);
+ var Float64Array = makeTypedArray(8, packF64, unpackF64);
+
+ global.Int8Array = global.Int8Array || Int8Array;
+ global.Uint8Array = global.Uint8Array || Uint8Array;
+ global.Uint8ClampedArray = global.Uint8ClampedArray || Uint8ClampedArray;
+ global.Int16Array = global.Int16Array || Int16Array;
+ global.Uint16Array = global.Uint16Array || Uint16Array;
+ global.Int32Array = global.Int32Array || Int32Array;
+ global.Uint32Array = global.Uint32Array || Uint32Array;
+ global.Float32Array = global.Float32Array || Float32Array;
+ global.Float64Array = global.Float64Array || Float64Array;
+ }());
+
+ //
+ // 6 The DataView View Type
+ //
+
+ (function() {
+ function r(array, index) {
+ return IsCallable(array.get) ? array.get(index) : array[index];
+ }
+
+ var IS_BIG_ENDIAN = (function() {
+ var u16array = new Uint16Array([0x1234]),
+ u8array = new Uint8Array(u16array.buffer);
+ return r(u8array, 0) === 0x12;
+ }());
+
+ // DataView(buffer, byteOffset=0, byteLength=undefined)
+ // WebIDL: Constructor(ArrayBuffer buffer,
+ // optional unsigned long byteOffset,
+ // optional unsigned long byteLength)
+ function DataView(buffer, byteOffset, byteLength) {
+ if (!(buffer instanceof ArrayBuffer || Class(buffer) === 'ArrayBuffer')) throw TypeError();
+
+ byteOffset = ToUint32(byteOffset);
+ if (byteOffset > buffer.byteLength)
+ throw RangeError('byteOffset out of range');
+
+ if (byteLength === undefined)
+ byteLength = buffer.byteLength - byteOffset;
+ else
+ byteLength = ToUint32(byteLength);
+
+ if ((byteOffset + byteLength) > buffer.byteLength)
+ throw RangeError('byteOffset and length reference an area beyond the end of the buffer');
+
+ Object.defineProperty(this, 'buffer', {value: buffer});
+ Object.defineProperty(this, 'byteLength', {value: byteLength});
+ Object.defineProperty(this, 'byteOffset', {value: byteOffset});
+ };
+
+ // get DataView.prototype.buffer
+ // get DataView.prototype.byteLength
+ // get DataView.prototype.byteOffset
+ // -- applied directly to instances by the constructor
+
+ function makeGetter(arrayType) {
+ return function GetViewValue(byteOffset, littleEndian) {
+ byteOffset = ToUint32(byteOffset);
+
+ if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength)
+ throw RangeError('Array index out of range');
+
+ byteOffset += this.byteOffset;
+
+ var uint8Array = new Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT),
+ bytes = [];
+ for (var i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1)
+ bytes.push(r(uint8Array, i));
+
+ if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN))
+ bytes.reverse();
+
+ return r(new arrayType(new Uint8Array(bytes).buffer), 0);
+ };
+ }
+
+ Object.defineProperty(DataView.prototype, 'getUint8', {value: makeGetter(Uint8Array)});
+ Object.defineProperty(DataView.prototype, 'getInt8', {value: makeGetter(Int8Array)});
+ Object.defineProperty(DataView.prototype, 'getUint16', {value: makeGetter(Uint16Array)});
+ Object.defineProperty(DataView.prototype, 'getInt16', {value: makeGetter(Int16Array)});
+ Object.defineProperty(DataView.prototype, 'getUint32', {value: makeGetter(Uint32Array)});
+ Object.defineProperty(DataView.prototype, 'getInt32', {value: makeGetter(Int32Array)});
+ Object.defineProperty(DataView.prototype, 'getFloat32', {value: makeGetter(Float32Array)});
+ Object.defineProperty(DataView.prototype, 'getFloat64', {value: makeGetter(Float64Array)});
+
+ function makeSetter(arrayType) {
+ return function SetViewValue(byteOffset, value, littleEndian) {
+ byteOffset = ToUint32(byteOffset);
+ if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength)
+ throw RangeError('Array index out of range');
+
+ // Get bytes
+ var typeArray = new arrayType([value]),
+ byteArray = new Uint8Array(typeArray.buffer),
+ bytes = [], i, byteView;
+
+ for (i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1)
+ bytes.push(r(byteArray, i));
+
+ // Flip if necessary
+ if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN))
+ bytes.reverse();
+
+ // Write them
+ byteView = new Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT);
+ byteView.set(bytes);
+ };
+ }
+
+ Object.defineProperty(DataView.prototype, 'setUint8', {value: makeSetter(Uint8Array)});
+ Object.defineProperty(DataView.prototype, 'setInt8', {value: makeSetter(Int8Array)});
+ Object.defineProperty(DataView.prototype, 'setUint16', {value: makeSetter(Uint16Array)});
+ Object.defineProperty(DataView.prototype, 'setInt16', {value: makeSetter(Int16Array)});
+ Object.defineProperty(DataView.prototype, 'setUint32', {value: makeSetter(Uint32Array)});
+ Object.defineProperty(DataView.prototype, 'setInt32', {value: makeSetter(Int32Array)});
+ Object.defineProperty(DataView.prototype, 'setFloat32', {value: makeSetter(Float32Array)});
+ Object.defineProperty(DataView.prototype, 'setFloat64', {value: makeSetter(Float64Array)});
+
+ global.DataView = global.DataView || DataView;
+
+ }());
+
+}(self));
+if (!('fround' in Math)) {
+
+// Math.fround
+/* global Float32Array */
+// 20.2.2.17 Math.fround ( x )
+CreateMethodProperty(Math, 'fround', function (x) {
+ // 1. If x is NaN, return NaN.
+ if (isNaN(x)) {
+ return NaN;
+ }
+ // 2. If x is one of +0, -0, +∞, -∞, return x.
+ if (1 / x === +Infinity || 1 / x === -Infinity || x === +Infinity || x === -Infinity) {
+ return x;
+ }
+ // 3. Let x32 be the result of converting x to a value in IEEE 754-2008 binary32 format using roundTiesToEven.
+ // 4. Let x64 be the result of converting x32 to a value in IEEE 754-2008 binary64 format.
+ // 5. Return the ECMAScript Number value corresponding to x64.
+ return (new Float32Array([x]))[0];
+});
+
+}
+
+if (!('hypot' in Math)) {
+
+// Math.hypot
+/* global CreateMethodProperty */
+// 20.2.2.18. Math.hypot ( value1, value2, ...values )
+CreateMethodProperty(Math, 'hypot', function hypot(value1, value2) { // eslint-disable-line no-unused-vars
+ // If no arguments are passed, the result is +0.
+ if (arguments.length === 0) {
+ return 0;
+ }
+ var y = 0;
+ var max = 0;
+ for (var i = 0; i < arguments.length; ++i) {
+ // If any argument is +∞, the result is +∞.
+ if (arguments[i] === Infinity) {
+ return Infinity;
+ }
+
+ // If any argument is -∞, the result is +∞.
+ if (arguments[i] === -Infinity) {
+ return Infinity;
+ }
+
+ // If no argument is +∞ or -∞, and any argument is NaN, the result is NaN.
+ // If all arguments are either +0 or -0, the result is +0.
+ // Polyfill.io - The two conditions above are handled in the math.
+
+ var arg = Math.abs(Number(arguments[i]));
+ if (arg > max) {
+ y = y * Math.pow(max / arg, 2);
+ max = arg;
+ }
+ if (arg !== 0 || max !== 0) {
+ y = y + Math.pow(arg / max, 2);
+ }
+ }
+
+ return max * Math.sqrt(y);
+});
+
+}
+
+if (!('imul' in Math)) {
+
+// Math.imul
+/* global CreateMethodProperty, ToUint32 */
+// 20.2.2.19. Math.imul ( x, y )
+CreateMethodProperty(Math, 'imul', function imul(x, y) {
+ // 1. Let a be ToUint32(x).
+ var a = ToUint32(x);
+ // 2. Let b be ToUint32(y).
+ var b = ToUint32(y);
+ // 3. Let product be (a × b) modulo 2^32.
+ var product = (a * b) % Math.pow(2, 32);
+ // 4. If product ≥ 2^31, return product - 2^32; otherwise return product.
+ return (product >= Math.pow(2, 31)) ? product - Math.pow(2, 32) : product;
+});
+
+}
+
+if (!('log10' in Math)) {
+
+// Math.log10
+/* global CreateMethodProperty */
+// 20.2.2.22. Math.log10 ( x )
+CreateMethodProperty(Math, 'log10', function log10(x) {
+ return Math.log(x) / Math.LN10;
+});
+
+}
+
+if (!('log1p' in Math)) {
+
+// Math.log1p
+/* global CreateMethodProperty */
+// 20.2.2.21. Math.log1p ( x )
+CreateMethodProperty(Math, 'log1p', function log1p(x) {
+ return Math.log(1 + x);
+});
+
+}
+
+if (!('log2' in Math)) {
+
+// Math.log2
+/* global CreateMethodProperty */
+// 20.2.2.23. Math.log2 ( x )
+CreateMethodProperty(Math, 'log2', function log2(x) {
+ return Math.log(x) / Math.LN2;
+});
+
+}
+
+if (!('sign' in Math)) {
+
+// Math.sign
+/* global CreateMethodProperty */
+// 20.2.2.29. Math.sign ( x )
+CreateMethodProperty(Math, 'sign', function sign(x) {
+ var x = Number(x);
+ // If x is NaN, the result is NaN.
+ if (isNaN(x)) {
+ return NaN;
+ }
+ // If x is -0, the result is -0.
+ if (1 / x === -Infinity) {
+ return -0;
+ }
+ // If x is +0, the result is +0.
+ if (1 / x === Infinity) {
+ return 0;
+ }
+ // If x is negative and not -0, the result is -1.
+ if (x < 0) {
+ return -1;
+ }
+ // If x is positive and not +0, the result is +1.
+ if (x > 0) {
+ return 1;
+ }
+});
+
+}
+
+if (!('sinh' in Math)) {
+
+// Math.sinh
+/* global CreateMethodProperty */
+// 20.2.2.31. Math.sinh ( x )
+CreateMethodProperty(Math, 'sinh', function sinh(x) {
+ var s = (x < 0) ? -1 : 1;
+ var absx = Math.abs(x);
+ if (absx < 22) {
+ if (absx < Math.pow(2, -28)) {
+ return x;
+ }
+ var t = Math.exp(absx) - 1;
+ if (absx < 1) {
+ return (s * (2 * t - t * t / (t + 1)))/2;
+ }
+ return (s * (t + t / (t + 1)))/2;
+ }
+ if (absx < 709.7822265625) {
+ return (s * Math.exp(absx))/2;
+ }
+ var w = Math.exp(0.5 * absx);
+ var t = (s * w)/2;
+ return t * w;
+});
+
+}
+
+if (!('tanh' in Math)) {
+
+// Math.tanh
+/* global CreateMethodProperty */
+// 20.2.2.34. Math.tanh ( x )
+CreateMethodProperty(Math, 'tanh', function tanh(x) {
+ var y;
+
+ return x === Infinity ? 1 : x === -Infinity ? -1 : (y = Math.exp(2 * x), (y - 1) / (y + 1));
+});
+
+}
+
+if (!('trunc' in Math)) {
+
+// Math.trunc
+/* global CreateMethodProperty */
+CreateMethodProperty(Math, 'trunc', function trunc(x) {
+ return x < 0 ? Math.ceil(x) : Math.floor(x);
+});
+
+}
+
+if (!('EPSILON' in Number)) {
+
+// Number.Epsilon
+// 20.1.2.1. Number.EPSILON
+// The value of Number.EPSILON is the difference between 1 and the smallest value greater than 1 that is representable as a Number value, which is approximately 2.2204460492503130808472633361816 x 10-16.
+// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+Object.defineProperty(Number, 'EPSILON', {
+ enumerable: false,
+ configurable: false,
+ writable: false,
+ value: Math.pow(2, -52)
+});
+
+}
+
+if (!('MAX_SAFE_INTEGER' in Number)) {
+
+// Number.MAX_SAFE_INTEGER
+// 20.1.2.6. Number.MAX_SAFE_INTEGER
+// The value of Number.MAX_SAFE_INTEGER is 9007199254740991 (2^53-1).
+// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+Object.defineProperty(Number, 'MAX_SAFE_INTEGER', {
+ enumerable: false,
+ configurable: false,
+ writable: false,
+ value: Math.pow(2, 53) - 1
+});
+
+}
+
+if (!('MIN_SAFE_INTEGER' in Number)) {
+
+// Number.MIN_SAFE_INTEGER
+// 20.1.2.8. Number.MIN_SAFE_INTEGER
+// The value of Number.MIN_SAFE_INTEGER is -9007199254740991 (-(253-1)).
+// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+Object.defineProperty(Number, 'MIN_SAFE_INTEGER', {
+ enumerable: false,
+ configurable: false,
+ writable: false,
+ value: -(Math.pow(2, 53) - 1)
+});
+
+}
+
+if (!('isFinite' in Number)) {
+
+// Number.isFinite
+/* global CreateMethodProperty, Type */
+(function () {
+ var that = this;
+ // 20.1.2.2. Number.isFinite ( number )
+ CreateMethodProperty(Number, 'isFinite', function isFinite(number) {
+ // 1. If Type(number) is not Number, return false.
+ if (Type(number) !== 'number') {
+ return false;
+ }
+ // 2. If number is NaN, +∞, or -∞, return false.
+ // 3. Otherwise, return true.
+ // Polyfill.io - We use isFinite as it implements steps 2 and 3.
+ return that.isFinite(number);
+ });
+}());
+
+}
+
+if (!('isInteger' in Number)) {
+
+// Number.isInteger
+/* global CreateMethodProperty, ToInteger, Type */
+// 20.1.2.3. Number.isInteger ( number )
+CreateMethodProperty(Number, 'isInteger', function isInteger(number) {
+ // 1. If Type(number) is not Number, return false.
+ if (Type(number) !== 'number') {
+ return false;
+ }
+ // 2. If number is NaN, +∞, or -∞, return false.
+ if (isNaN(number) || number === Infinity || number === -Infinity) {
+ return false;
+ }
+ // 3. Let integer be ToInteger(number).
+ var integer = ToInteger(number);
+ // 4. If integer is not equal to number, return false.
+ if (integer !== number) {
+ return false;
+ }
+ // 5. Otherwise, return true.
+ return true;
+});
+
+}
+
+if (!('isNaN' in Number)) {
+
+// Number.isNaN
+/* global CreateMethodProperty, Type */
+(function () {
+ var that = this;
+ // 20.1.2.4. Number.isNaN ( number )
+ CreateMethodProperty(Number, 'isNaN', function isNaN(number) {
+ // 1. If Type(number) is not Number, return false.
+ if (Type(number) !== 'number') {
+ return false;
+ }
+ // 2. If number is NaN, return true.
+ if (that.isNaN(number)) {
+ return true;
+ }
+ // 3. Otherwise, return false.
+ return false;
+ });
+}());
+
+}
+
+if (!('isSafeInteger' in Number)) {
+
+// Number.isSafeInteger
+/* global CreateMethodProperty, Type, ToInteger */
+// 20.1.2.5. Number.isSafeInteger ( number )
+CreateMethodProperty(Number, 'isSafeInteger', function isSafeInteger(number) {
+ // 1. If Type(number) is not Number, return false.
+ if (Type(number) !== 'number') {
+ return false;
+ }
+ // 2. If number is NaN, +∞, or -∞, return false.
+ if (isNaN(number) || number === Infinity || number === -Infinity) {
+ return false;
+ }
+ // 3. Let integer be ToInteger(number).
+ var integer = ToInteger(number);
+ // 4. If integer is not equal to number, return false.
+ if (integer !== number) {
+ return false;
+ }
+ // 5. If abs(integer) ≤ 2^53-1, return true.
+ if (Math.abs(integer) <= (Math.pow(2, 53) - 1)) {
+ return true;
+ }
+ // 6. Otherwise, return false.
+ return false;
+});
+
+}
+
+if (!('parseFloat' in Number)) {
+
+// Number.parseFloat
+/* global CreateMethodProperty */
+// 20.1.2.12. Number.parseFloat ( string )
+// The value of the Number.parseFloat data property is the same built-in function object that is the value of the parseFloat property of the global object defined in 18.2.4.
+CreateMethodProperty(Number, 'parseFloat', parseFloat);
+
+}
+
+if (!('parseInt' in Number)) {
+
+// Number.parseInt
+/* global CreateMethodProperty */
+// 20.1.2.13. Number.parseInt ( string, radix )
+// The value of the Number.parseInt data property is the same built-in function object that is the value of the parseInt property of the global object defined in 18.2.5.
+CreateMethodProperty(Number, 'parseInt', parseInt);
+
+}
+
+
+// _ESAbstract.SameValue
+/* global Type, SameValueNonNumber */
+// 7.2.10. SameValue ( x, y )
+function SameValue(x, y) { // eslint-disable-line no-unused-vars
+ // 1. If Type(x) is different from Type(y), return false.
+ if (Type(x) !== Type(y)) {
+ return false;
+ }
+ // 2. If Type(x) is Number, then
+ if (Type(x) === 'number') {
+ // a. If x is NaN and y is NaN, return true.
+ if (isNaN(x) && isNaN(y)) {
+ return true;
+ }
+ // Polyfill.io - 0 === -0 is true, but they are not the same value.
+ // b. If x is +0 and y is -0, return false.
+ // c. If x is -0 and y is +0, return false.
+ if (x === 0 && y === 0 && 1/x !== 1/y) {
+ return false;
+ }
+ // d. If x is the same Number value as y, return true.
+ if (x === y) {
+ return true;
+ }
+ // e. Return false.
+ return false;
+ }
+ // 3. Return SameValueNonNumber(x, y).
+ return SameValueNonNumber(x, y);
+}
+if (!('is' in Object)) {
+
+// Object.is
+/* global CreateMethodProperty, SameValue */
+// 19.1.2.12. Object.is ( value1, value2 )
+CreateMethodProperty(Object, 'is', function is(value1, value2) {
+ // 1. Return SameValue(value1, value2).
+ return SameValue(value1, value2);
+});
+
+}
+
+if (!('Promise' in this)) {
+
+// Promise
+!function(n){function t(r){if(e[r])return e[r].exports;var o=e[r]={i:r,l:!1,exports:{}};return n[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var e={};t.m=n,t.c=e,t.i=function(n){return n},t.d=function(n,e,r){t.o(n,e)||Object.defineProperty(n,e,{configurable:!1,enumerable:!0,get:r})},t.n=function(n){var e=n&&n.__esModule?function(){return n["default"]}:function(){return n};return t.d(e,"a",e),e},t.o=function(n,t){return Object.prototype.hasOwnProperty.call(n,t)},t.p="",t(t.s=100)}({100:/*!***********************!*\
+ !*** ./src/global.js ***!
+ \***********************/
+function(n,t,e){(function(n){var t=e(/*! ./yaku */5);try{n.Promise=t,window.Promise=t}catch(r){}}).call(t,e(/*! ./../~/webpack/buildin/global.js */2))},2:/*!***********************************!*\
+ !*** (webpack)/buildin/global.js ***!
+ \***********************************/
+function(n,t){var e;e=function(){return this}();try{e=e||Function("return this")()||(0,eval)("this")}catch(r){"object"==typeof window&&(e=window)}n.exports=e},5:/*!*********************!*\
+ !*** ./src/yaku.js ***!
+ \*********************/
+function(n,t,e){(function(t){!function(){"use strict";function e(){return rn[q][B]||D}function r(n){return n&&"object"==typeof n}function o(n){return"function"==typeof n}function i(n,t){return n instanceof t}function u(n){return i(n,M)}function c(n,t,e){if(!t(n))throw h(e)}function f(){try{return R.apply(S,arguments)}catch(n){return nn.e=n,nn}}function s(n,t){return R=n,S=t,f}function a(n,t){function e(){for(var e=0;e<o;)t(r[e],r[e+1]),r[e++]=P,r[e++]=P;o=0,r.length>n&&(r.length=n)}var r=A(n),o=0;return function(n,t){r[o++]=n,r[o++]=t,2===o&&rn.nextTick(e)}}function l(n,t){var e,r,u,c,f=0;if(!n)throw h(Q);var a=n[rn[q][z]];if(o(a))r=a.call(n);else{if(!o(n.next)){if(i(n,A)){for(e=n.length;f<e;)t(n[f],f++);return f}throw h(Q)}r=n}for(;!(u=r.next()).done;)if((c=s(t)(u.value,f++))===nn)throw o(r[G])&&r[G](),c.e;return f}function h(n){return new TypeError(n)}function v(n){return(n?"":V)+(new M).stack}function _(n,t){var e="on"+n.toLowerCase(),r=O[e];H&&H.listeners(n).length?n===Z?H.emit(n,t._v,t):H.emit(n,t):r?r({reason:t._v,promise:t}):rn[n](t._v,t)}function p(n){return n&&n._s}function d(n){if(p(n))return new n(tn);var t,e,r;return t=new n(function(n,o){if(t)throw h();e=n,r=o}),c(e,o),c(r,o),t}function w(n,t){var e=!1;return function(r){e||(e=!0,L&&(n[N]=v(!0)),t===Y?k(n,r):x(n,t,r))}}function y(n,t,e,r){return o(e)&&(t._onFulfilled=e),o(r)&&(n[J]&&_(X,n),t._onRejected=r),L&&(t._p=n),n[n._c++]=t,n._s!==$&&on(n,t),t}function m(n){if(n._umark)return!0;n._umark=!0;for(var t,e=0,r=n._c;e<r;)if(t=n[e++],t._onRejected||m(t))return!0}function j(n,t){function e(n){return r.push(n.replace(/^\s+|\s+$/g,""))}var r=[];return L&&(t[N]&&e(t[N]),function o(n){n&&K in n&&(o(n._next),e(n[K]+""),o(n._p))}(t)),(n&&n.stack?n.stack:n)+("\n"+r.join("\n")).replace(en,"")}function g(n,t){return n(t)}function x(n,t,e){var r=0,o=n._c;if(n._s===$)for(n._s=t,n._v=e,t===U&&(L&&u(e)&&(e.longStack=j(e,n)),un(n));r<o;)on(n,n[r++]);return n}function k(n,t){if(t===n&&t)return x(n,U,h(W)),n;if(t!==C&&(o(t)||r(t))){var e=s(b)(t);if(e===nn)return x(n,U,e.e),n;o(e)?(L&&p(t)&&(n._next=t),p(t)?T(n,t,e):rn.nextTick(function(){T(n,t,e)})):x(n,Y,t)}else x(n,Y,t);return n}function b(n){return n.then}function T(n,t,e){var r=s(e,t)(function(e){t&&(t=C,k(n,e))},function(e){t&&(t=C,x(n,U,e))});r===nn&&t&&(x(n,U,r.e),t=C)}var P,R,S,C=null,F="object"==typeof self,O=F?self:t,E=O.Promise,H=O.process,I=O.console,L=!1,A=Array,M=Error,U=1,Y=2,$=3,q="Symbol",z="iterator",B="species",D=q+"("+B+")",G="return",J="_uh",K="_pt",N="_st",Q="Invalid argument",V="\nFrom previous ",W="Chaining cycle detected for promise",X="rejectionHandled",Z="unhandledRejection",nn={e:C},tn=function(){},en=/^.+\/node_modules\/yaku\/.+\n?/gm,rn=function(n){var t,e=this;if(!r(e)||e._s!==P)throw h("Invalid this");if(e._s=$,L&&(e[K]=v()),n!==tn){if(!o(n))throw h(Q);t=s(n)(w(e,Y),w(e,U)),t===nn&&x(e,U,t.e)}};rn["default"]=rn,function(n,t){for(var e in t)n[e]=t[e]}(rn.prototype,{then:function(n,t){if(this._s===undefined)throw h();return y(this,d(rn.speciesConstructor(this,rn)),n,t)},"catch":function(n){return this.then(P,n)},"finally":function(n){return this.then(function(t){return rn.resolve(n()).then(function(){return t})},function(t){return rn.resolve(n()).then(function(){throw t})})},_c:0,_p:C}),rn.resolve=function(n){return p(n)?n:k(d(this),n)},rn.reject=function(n){return x(d(this),U,n)},rn.race=function(n){var t=this,e=d(t),r=function(n){x(e,Y,n)},o=function(n){x(e,U,n)},i=s(l)(n,function(n){t.resolve(n).then(r,o)});return i===nn?t.reject(i.e):e},rn.all=function(n){function t(n){x(o,U,n)}var e,r=this,o=d(r),i=[];return(e=s(l)(n,function(n,u){r.resolve(n).then(function(n){i[u]=n,--e||x(o,Y,i)},t)}))===nn?r.reject(e.e):(e||x(o,Y,[]),o)},rn.Symbol=O[q]||{},s(function(){Object.defineProperty(rn,e(),{get:function(){return this}})})(),rn.speciesConstructor=function(n,t){var r=n.constructor;return r?r[e()]||t:t},rn.unhandledRejection=function(n,t){I&&I.error("Uncaught (in promise)",L?t.longStack:j(n,t))},rn.rejectionHandled=tn,rn.enableLongStackTrace=function(){L=!0},rn.nextTick=F?function(n){E?new E(function(n){n()}).then(n):setTimeout(n)}:H.nextTick,rn._s=1;var on=a(999,function(n,t){var e,r;return(r=n._s!==U?t._onFulfilled:t._onRejected)===P?void x(t,n._s,n._v):(e=s(g)(r,n._v))===nn?void x(t,U,e.e):void k(t,e)}),un=a(9,function(n){m(n)||(n[J]=1,_(Z,n))});try{n.exports=rn}catch(cn){O.Yaku=rn}}()}).call(t,e(/*! ./../~/webpack/buildin/global.js */2))}});
+}
+
+if (!('flags' in RegExp.prototype)) {
+
+// RegExp.prototype.flags
+/* global Get, ToBoolean, Type */
+Object.defineProperty(RegExp.prototype, 'flags', {
+ configurable: true,
+ enumerable: false,
+ get: function () {
+ // 21.2.5.3.1 Let R be the this value.
+ var R = this;
+
+ // 21.2.5.3.2 If Type(R) is not Object, throw a TypeError exception.
+ if (Type(R) !== 'object') {
+ throw new TypeError('Method called on incompatible type: must be an object.');
+ }
+ // 21.2.5.3.3 Let result be the empty String.
+ var result = '';
+
+ // 21.2.5.3.4 Let global be ToBoolean(? Get(R, "global")).
+ var global = ToBoolean(Get(R, 'global'));
+
+ // 21.2.5.3.5 If global is true, append the code unit 0x0067 (LATIN SMALL LETTER G) as the last code unit of result.
+ if (global) {
+ result += 'g';
+ }
+
+ // 21.2.5.3.6 Let ignoreCase be ToBoolean(? Get(R, "ignoreCase")).
+ var ignoreCase = ToBoolean(Get(R, 'ignoreCase'));
+
+ // 21.2.5.3.7 If ignoreCase is true, append the code unit 0x0069 (LATIN SMALL LETTER I) as the last code unit of result.
+ if (ignoreCase) {
+ result += 'i';
+ }
+
+ // 21.2.5.3.8 Let multiline be ToBoolean(? Get(R, "multiline")).
+ var multiline = ToBoolean(Get(R, 'multiline'));
+
+ // 21.2.5.3.9 If multiline is true, append the code unit 0x006D (LATIN SMALL LETTER M) as the last code unit of result.
+ if (multiline) {
+ result += 'm';
+ }
+
+ // 21.2.5.3.10 Let unicode be ToBoolean(? Get(R, "unicode")).
+ var unicode = ToBoolean(Get(R, 'unicode'));
+
+ // 21.2.5.3.11 If unicode is true, append the code unit 0x0075 (LATIN SMALL LETTER U) as the last code unit of result.
+ if (unicode) {
+ result += 'u';
+ }
+
+ // 21.2.5.3.12 Let sticky be ToBoolean(? Get(R, "sticky")).
+ var sticky = ToBoolean(Get(R, 'sticky'));
+
+ // 21.2.5.3.13 If sticky is true, append the code unit 0x0079 (LATIN SMALL LETTER Y) as the last code unit of result.
+ if (sticky) {
+ result += 'y';
+ }
+
+ // 21.2.5.3.14 Return result.
+ return result;
+ }
+});
+
+}
+
+
+// _StringIterator
+// A modification of https://github.com/medikoo/es6-iterator
+// Copyright (C) 2013-2015 Mariusz Nowak (www.medikoo.com)
+
+/* global Iterator */
+
+var StringIterator = (function() { // eslint-disable-line no-unused-vars
+
+ var StringIterator = function (str) {
+ if (!(this instanceof StringIterator)) return new StringIterator(str);
+ str = String(str);
+ Iterator.call(this, str);
+ Object.defineProperty(this, '__length__', {
+ value: str.length,
+ configurable: false,
+ enumerable: false,
+ writable: false
+ });
+ };
+ if (Object.setPrototypeOf) Object.setPrototypeOf(StringIterator, Iterator);
+
+ StringIterator.prototype = Object.create(Iterator.prototype, {
+ constructor: {
+ value: StringIterator,
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _next: {
+ value: function() {
+ if (!this.__list__) return;
+ if (this.__nextIndex__ < this.__length__) return this.__nextIndex__++;
+ this._unBind();
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ _resolve: {
+ value: function (i) {
+ var char = this.__list__[i], code;
+ if (this.__nextIndex__ === this.__length__) return char;
+ code = char.charCodeAt(0);
+ if ((code >= 0xD800) && (code <= 0xDBFF)) return char + this.__list__[this.__nextIndex__++];
+ return char;
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ },
+ toString: {
+ value: function() {
+ return '[object String Iterator]';
+ },
+ configurable: true,
+ enumerable: false,
+ writable: true
+ }
+ });
+
+ return StringIterator;
+}());
+if (!('Symbol' in this && 'iterator' in this.Symbol && !!String.prototype[Symbol.iterator])) {
+
+// String.prototype.@@iterator
+/* global CreateMethodProperty, RequireObjectCoercible, ToString, StringIterator, Symbol */
+// 21.1.3.29. String.prototype [ @@iterator ] ( )
+CreateMethodProperty(String.prototype, Symbol.iterator, function () {
+ // 1. Let O be ? RequireObjectCoercible(this value).
+ var O = RequireObjectCoercible(this);
+ // 2. Let S be ? ToString(O).
+ var S = ToString(O);
+ // 3. Return CreateStringIterator(S).
+ // TODO: Add CreateStringIterator.
+ return new StringIterator(S);
+});
+
+}
+
+
+// _ESAbstract.UTF16Decode
+// 10.1.2. Static Semantics: UTF16Decode( lead, trail )
+function UTF16Decode(lead, trail) { // eslint-disable-line no-unused-vars
+ // 1. Assert: 0xD800 ≤ lead ≤ 0xDBFF and 0xDC00 ≤ trail ≤ 0xDFFF.
+ // 2. Let cp be (lead - 0xD800) × 0x400 + (trail - 0xDC00) + 0x10000.
+ var cp = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
+ // 3. Return the code point cp.
+ return cp;
+}
+if (!('codePointAt' in String.prototype)) {
+
+// String.prototype.codePointAt
+/* global CreateMethodProperty, RequireObjectCoercible, ToInteger, ToString, UTF16Decode */
+// 21.1.3.3. String.prototype.codePointAt ( pos )
+CreateMethodProperty(String.prototype, 'codePointAt', function codePointAt(pos) {
+ // 1. Let O be ? RequireObjectCoercible(this value).
+ var O = RequireObjectCoercible(this);
+ // 2. Let S be ? ToString(O).
+ var S = ToString(O);
+ // 3. Let position be ? ToInteger(pos).
+ var position = ToInteger(pos);
+ // 4. Let size be the length of S.
+ var size = S.length;
+ // 5. If position < 0 or position ≥ size, return undefined.
+ if (position < 0 || position >= size) {
+ return undefined;
+ }
+ // 6. Let first be the numeric value of the code unit at index position within the String S.
+ var first = String.prototype.charCodeAt.call(S, position);
+ // 7. If first < 0xD800 or first > 0xDBFF or position+1 = size, return first.
+ if (first < 0xD800 || first > 0xDBFF || position + 1 === size) {
+ return first;
+ }
+ // 8. Let second be the numeric value of the code unit at index position+1 within the String S.
+ var second = String.prototype.charCodeAt.call(S, position + 1);
+ // 9. If second < 0xDC00 or second > 0xDFFF, return first.
+ if (second < 0xDC00 || second > 0xDFFF) {
+ return first;
+ }
+ // 10. Return UTF16Decode(first, second).
+ // 21.1.3.3.10 Return UTF16Decode(first, second).
+ return UTF16Decode(first, second);
+});
+
+}
+
+if (!('endsWith' in String.prototype)) {
+
+// String.prototype.endsWith
+/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
+// 21.1.3.6. String.prototype.endsWith ( searchString [ , endPosition ] )
+CreateMethodProperty(String.prototype, 'endsWith', function endsWith(searchString /* [ , endPosition ] */) {
+ 'use strict';
+ var endPosition = arguments.length > 1 ? arguments[1] : undefined;
+ // 1. Let O be ? RequireObjectCoercible(this value).
+ var O = RequireObjectCoercible(this);
+ // 2. Let S be ? ToString(O).
+ var S = ToString(O);
+ // 3. Let isRegExp be ? IsRegExp(searchString).
+ var isRegExp = IsRegExp(searchString);
+ // 4. If isRegExp is true, throw a TypeError exception.
+ if (isRegExp) {
+ throw new TypeError('First argument to String.prototype.endsWith must not be a regular expression');
+ }
+ // 5. Let searchStr be ? ToString(searchString).
+ var searchStr = ToString(searchString);
+ // 6. Let len be the length of S.
+ var len = S.length;
+ // 7. If endPosition is undefined, let pos be len, else let pos be ? ToInteger(endPosition).
+ var pos = endPosition === undefined ? len : ToInteger(endPosition);
+ // 8. Let end be min(max(pos, 0), len).
+ var end = Math.min(Math.max(pos, 0), len);
+ // 9. Let searchLength be the length of searchStr.
+ var searchLength = searchStr.length;
+ // 10. Let start be end - searchLength.
+ var start = end - searchLength;
+ // 11. If start is less than 0, return false.
+ if (start < 0) {
+ return false;
+ }
+ // 12. If the sequence of elements of S starting at start of length searchLength is the same as the full element sequence of searchStr, return true.
+ if (S.substr(start, searchLength) === searchStr) {
+ return true;
+ }
+ // 13. Otherwise, return false.
+ return false;
+});
+
+}
+
+if (!('repeat' in String.prototype)) {
+
+// String.prototype.repeat
+/* global CreateMethodProperty, RequireObjectCoercible, ToInteger, ToString */
+// 21.1.3.15String.prototype.repeat ( count )
+CreateMethodProperty(String.prototype, 'repeat', function repeat(count) {
+ 'use strict';
+ // 1. Let O be ? RequireObjectCoercible(this value).
+ var O = RequireObjectCoercible(this);
+ // 2. Let S be ? ToString(O).
+ var S = ToString(O);
+ // 3. Let n be ? ToInteger(count).
+ var n = ToInteger(count);
+ // 4. If n < 0, throw a RangeError exception.
+ if (n < 0) {
+ throw new RangeError('Invalid count value');
+ }
+ // 5. If n is +∞, throw a RangeError exception.
+ if (n === Infinity) {
+ throw new RangeError('Invalid count value');
+ }
+ // 6. Let T be the String value that is made from n copies of S appended together. If n is 0, T is the empty String.
+ var T = n === 0 ? '' : new Array(n + 1).join(S);
+ // 7. Return T.
+ return T;
+});
+
+}
+
+if (!('startsWith' in String.prototype)) {
+
+// String.prototype.startsWith
+/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
+// 21.1.3.20. String.prototype.startsWith ( searchString [ , position ] )
+CreateMethodProperty(String.prototype, 'startsWith', function startsWith(searchString /* [ , position ] */) {
+ 'use strict';
+ var position = arguments.length > 1 ? arguments[1] : undefined;
+ // 1. Let O be ? RequireObjectCoercible(this value).
+ var O = RequireObjectCoercible(this);
+ // 2. Let S be ? ToString(O).
+ var S = ToString(O);
+ // 3. Let isRegExp be ? IsRegExp(searchString).
+ var isRegExp = IsRegExp(searchString);
+ // 4. If isRegExp is true, throw a TypeError exception.
+ if (isRegExp) {
+ throw new TypeError('First argument to String.prototype.startsWith must not be a regular expression');
+ }
+ // 5. Let searchStr be ? ToString(searchString).
+ var searchStr = ToString(searchString);
+ // 6. Let pos be ? ToInteger(position). (If position is undefined, this step produces the value 0.)
+ var pos = ToInteger(position);
+ // 7. Let len be the length of S.
+ var len = S.length;
+ // 8. Let start be min(max(pos, 0), len).
+ var start = Math.min(Math.max(pos, 0), len);
+ // 9. Let searchLength be the length of searchStr.
+ var searchLength = searchStr.length;
+ // 10. If searchLength+start is greater than len, return false.
+ if (searchLength + start > len) {
+ return false;
+ }
+ // 11. If the sequence of elements of S starting at start of length searchLength is the same as the full element sequence of searchStr, return true.
+ if (S.substr(start).indexOf(searchString) === 0) {
+ return true;
+ }
+ // 12. Otherwise, return false.
+ return false;
+});
+
+}
+
+if (!('Symbol' in this && 'hasInstance' in this.Symbol)) {
+
+// Symbol.hasInstance
+/* global Symbol */
+Object.defineProperty(Symbol, 'hasInstance', { value: Symbol('hasInstance') });
+
+}
+
+if (!('Symbol' in this && 'isConcatSpreadable' in this.Symbol)) {
+
+// Symbol.isConcatSpreadable
+/* global Symbol */
+Object.defineProperty(Symbol, 'isConcatSpreadable', { value: Symbol('isConcatSpreadable') });
+
+}
+
+if (!('Symbol' in this && 'match' in this.Symbol)) {
+
+// Symbol.match
+/* global Symbol */
+Object.defineProperty(Symbol, 'match', { value: Symbol('match') });
+
+}
+
+if (!('Symbol' in this && 'replace' in this.Symbol)) {
+
+// Symbol.replace
+/* global Symbol */
+Object.defineProperty(Symbol, 'replace', { value: Symbol('replace') });
+
+}
+
+if (!('Symbol' in this && 'search' in this.Symbol)) {
+
+// Symbol.search
+/* global Symbol */
+Object.defineProperty(Symbol, 'search', { value: Symbol('search') });
+
+}
+
+if (!('Symbol' in this && 'split' in this.Symbol)) {
+
+// Symbol.split
+/* global Symbol */
+Object.defineProperty(Symbol, 'split', { value: Symbol('split') });
+
+}
+
+if (!('Symbol' in this && 'toPrimitive' in this.Symbol)) {
+
+// Symbol.toPrimitive
+/* global Symbol */
+Object.defineProperty(Symbol, 'toPrimitive', { value: Symbol('toPrimitive') });
+
+}
+
+if (!('Symbol' in this && 'unscopables' in this.Symbol)) {
+
+// Symbol.unscopables
+/* global Symbol */
+Object.defineProperty(Symbol, 'unscopables', { value: Symbol('unscopables') });
+
+}
+
+if (!((function(global) {
+ try {
+ if ("WeakMap" in global && WeakMap.length === 0) {
+ var o = {};
+ var wm = new WeakMap([[o, 'test']]);
+ return (wm.get(o) === 'test' && wm["delete"](0) === false);
+ } else {
+ return false;
+ }
+ } catch (err) {
+ return false;
+ }
+}(this)))) {
+
+// WeakMap
+/* globals Symbol, OrdinaryCreateFromConstructor, IsCallable, GetIterator, IteratorStep, IteratorValue, IteratorClose, Get, Call, CreateMethodProperty, Type, SameValue */
+(function (global) {
+ // Deleted map items mess with iterator pointers, so rather than removing them mark them as deleted. Can't use undefined or null since those both valid keys so use a private symbol.
+ var undefMarker = Symbol('undef');
+ // 23.3.1.1 WeakMap ( [ iterable ] )
+ var WeakMap = function WeakMap(/* iterable */) {
+ // 1. If NewTarget is undefined, throw a TypeError exception.
+ if (!(this instanceof WeakMap)) {
+ throw new TypeError('Constructor WeakMap requires "new"');
+ }
+ // 2. Let map be ? OrdinaryCreateFromConstructor(NewTarget, "%WeakMapPrototype%", « [[WeakMapData]] »).
+ var map = OrdinaryCreateFromConstructor(this, WeakMap.prototype, {
+ _keys: [],
+ _values: [],
+ _es6WeakMap: true
+ });
+
+ // 3. Set map.[[WeakMapData]] to a new empty List.
+ // Polyfill.io - This step was done as part of step two.
+
+ // 4. If iterable is not present, let iterable be undefined.
+ var iterable = arguments.length > 0 ? arguments[0] : undefined;
+
+ // 5. If iterable is either undefined or null, return map.
+ if (iterable === null || iterable === undefined) {
+ return map;
+ }
+
+ // 6. Let adder be ? Get(map, "set").
+ var adder = Get(map, "set");
+
+ // 7. If IsCallable(adder) is false, throw a TypeError exception.
+ if (!IsCallable(adder)) {
+ throw new TypeError("WeakMap.prototype.set is not a function");
+ }
+
+ // 8. Let iteratorRecord be ? GetIterator(iterable).
+ try {
+ var iteratorRecord = GetIterator(iterable);
+ // 9. Repeat,
+ while (true) {
+ // a. Let next be ? IteratorStep(iteratorRecord).
+ var next = IteratorStep(iteratorRecord);
+ // b. If next is false, return map.
+ if (next === false) {
+ return map;
+ }
+ // c. Let nextItem be ? IteratorValue(next).
+ var nextItem = IteratorValue(next);
+ // d. If Type(nextItem) is not Object, then
+ if (Type(nextItem) !== 'object') {
+ // i. Let error be Completion{[[Type]]: throw, [[Value]]: a newly created TypeError object, [[Target]]: empty}.
+ try {
+ throw new TypeError('Iterator value ' + nextItem + ' is not an entry object');
+ } catch (error) {
+ // ii. Return ? IteratorClose(iteratorRecord, error).
+ return IteratorClose(iteratorRecord, error);
+ }
+ }
+ try {
+ // Polyfill.io - The try catch accounts for steps: f, h, and j.
+
+ // e. Let k be Get(nextItem, "0").
+ var k = Get(nextItem, "0");
+ // f. If k is an abrupt completion, return ? IteratorClose(iteratorRecord, k).
+ // g. Let v be Get(nextItem, "1").
+ var v = Get(nextItem, "1");
+ // h. If v is an abrupt completion, return ? IteratorClose(iteratorRecord, v).
+ // i. Let status be Call(adder, map, « k.[[Value]], v.[[Value]] »).
+ Call(adder, map, [k, v]);
+ } catch (e) {
+ // j. If status is an abrupt completion, return ? IteratorClose(iteratorRecord, status).
+ return IteratorClose(iteratorRecord, e);
+ }
+ }
+ } catch (e) {
+ // Polyfill.io - For user agents which do not have iteration methods on argument objects or arrays, we can special case those.
+ if (Array.isArray(iterable) ||
+ Object.prototype.toString.call(iterable) === '[object Arguments]' ||
+ // IE 7 & IE 8 return '[object Object]' for the arguments object, we can detect by checking for the existence of the callee property
+ (!!iterable.callee)) {
+ var index;
+ var length = iterable.length;
+ for (index = 0; index < length; index++) {
+ var k = iterable[index][0];
+ var v = iterable[index][1];
+ Call(adder, map, [k, v]);
+ }
+ }
+ }
+ return map;
+ };
+
+ // 23.3.2.1 WeakMap.prototype
+ // The initial value of WeakMap.prototype is the intrinsic object %WeakMapPrototype%.
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+ Object.defineProperty(WeakMap, 'prototype', {
+ configurable: false,
+ enumerable: false,
+ writable: false,
+ value: {}
+ });
+
+ // 23.3.3.1 WeakMap.prototype.constructor
+ CreateMethodProperty(WeakMap.prototype, 'constructor', WeakMap);
+
+ // 23.3.3.2 WeakMap.prototype.delete ( key )
+ CreateMethodProperty(WeakMap.prototype, 'delete', function (key) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method WeakMap.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[WeakMapData]] internal slot, throw a TypeError exception.
+ if (M._es6WeakMap !== true) {
+ throw new TypeError('Method WeakMap.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[WeakMapData]].
+ var entries = M._keys;
+ // 5. If Type(key) is not Object, return false.
+ if (Type(key) !== 'object') {
+ return false;
+ }
+ // 6. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty and SameValue(p.[[Key]], key) is true, then
+ if (M._keys[i] !== undefMarker && SameValue(M._keys[i], key)) {
+ // i. Set p.[[Key]] to empty.
+ this._keys[i] = undefMarker;
+ // ii. Set p.[[Value]] to empty.
+ this._values[i] = undefMarker;
+ this._size = --this._size;
+ // iii. Return true.
+ return true;
+ }
+ }
+ // 7. Return false.
+ return false;
+ });
+
+ // 23.3.3.3 WeakMap.prototype.get ( key )
+ CreateMethodProperty(WeakMap.prototype, 'get', function get(key) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method WeakMap.prototype.get called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[WeakMapData]] internal slot, throw a TypeError exception.
+ if (M._es6WeakMap !== true) {
+ throw new TypeError('Method WeakMap.prototype.get called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[WeakMapData]].
+ var entries = M._keys;
+ // 5. If Type(key) is not Object, return undefined.
+ if (Type(key) !== 'object') {
+ return undefined;
+ }
+ // 6. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty and SameValue(p.[[Key]], key) is true, return p.[[Value]].
+ if (M._keys[i] !== undefMarker && SameValue(M._keys[i], key)) {
+ return M._values[i];
+ }
+ }
+ // 7. Return undefined.
+ return undefined;
+ });
+
+ // 23.3.3.4 WeakMap.prototype.has ( key )
+ CreateMethodProperty(WeakMap.prototype, 'has', function has(key) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (typeof M !== 'object') {
+ throw new TypeError('Method WeakMap.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[WeakMapData]] internal slot, throw a TypeError exception.
+ if (M._es6WeakMap !== true) {
+ throw new TypeError('Method WeakMap.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[WeakMapData]].
+ var entries = M._keys;
+ // 5. If Type(key) is not Object, return false.
+ if (Type(key) !== 'object') {
+ return false;
+ }
+ // 6. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty and SameValue(p.[[Key]], key) is true, return true.
+ if (M._keys[i] !== undefMarker && SameValue(M._keys[i], key)) {
+ return true;
+ }
+ }
+ // 7. Return false.
+ return false;
+ });
+
+ // 23.3.3.5 WeakMap.prototype.set ( key, value )
+ CreateMethodProperty(WeakMap.prototype, 'set', function set(key, value) {
+ // 1. Let M be the this value.
+ var M = this;
+ // 2. If Type(M) is not Object, throw a TypeError exception.
+ if (Type(M) !== 'object') {
+ throw new TypeError('Method WeakMap.prototype.set called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 3. If M does not have a [[WeakMapData]] internal slot, throw a TypeError exception.
+ if (M._es6WeakMap !== true) {
+ throw new TypeError('Method WeakMap.prototype.set called on incompatible receiver ' + Object.prototype.toString.call(M));
+ }
+ // 4. Let entries be the List that is M.[[WeakMapData]].
+ var entries = M._keys;
+ // 5. If Type(key) is not Object, throw a TypeError exception.
+ if (Type(key) !== 'object') {
+ throw new TypeError("Invalid value used as weak map key");
+ }
+ // 6. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ // a. If p.[[Key]] is not empty and SameValue(p.[[Key]], key) is true, then
+ if (M._keys[i] !== undefMarker && SameValue(M._keys[i], key)) {
+ // i. Set p.[[Value]] to value.
+ M._values[i] = value;
+ // ii. Return M.
+ return M;
+ }
+ }
+ // 7. Let p be the Record {[[Key]]: key, [[Value]]: value}.
+ var p = {
+ '[[Key]]': key,
+ '[[Value]]': value
+ };
+ // 8. Append p as the last element of entries.
+ M._keys.push(p['[[Key]]']);
+ M._values.push(p['[[Value]]']);
+ // 9. Return M.
+ return M;
+ });
+
+ // 23.3.3.6 WeakMap.prototype [ @@toStringTag ]
+ // The initial value of the @@toStringTag property is the String value "WeakMap".
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+
+ // Polyfill.io - Safari 8 implements WeakMap.name but as a non-writable property, which means it would throw an error if we try and write to it here.
+ if (!('name' in WeakMap)) {
+ // 19.2.4.2 name
+ Object.defineProperty(WeakMap, 'name', {
+ configurable: true,
+ enumerable: false,
+ writable: false,
+ value: 'WeakMap'
+ });
+ }
+
+ // Export the object
+ try {
+ CreateMethodProperty(global, 'WeakMap', WeakMap);
+ } catch (e) {
+ // IE8 throws an error here if we set enumerable to false.
+ // More info on table 2: https://msdn.microsoft.com/en-us/library/dd229916(v=vs.85).aspx
+ global['WeakMap'] = WeakMap;
+ }
+}(this));
+
+}
+
+if (!((function(global) {
+ try {
+ if ("WeakSet" in global && WeakSet.length === 0) {
+ var o = {};
+ var ws = new WeakSet([o]);
+ return (ws.has(o) && ws["delete"](0) === false);
+ } else {
+ return false;
+ }
+ } catch (err) {
+ return false;
+ }
+}(this)))) {
+
+// WeakSet
+/* global Call, CreateMethodProperty, Get, GetIterator, IsArray, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Type, Symbol */
+(function (global) {
+ // Deleted set items mess with iterator pointers, so rather than removing them mark them as deleted. Can't use undefined or null since those both valid keys so use a private symbol.
+ var undefMarker = Symbol('undef');
+ // 23.4.1.1. WeakSet ( [ iterable ] )
+ var WeakSet = function WeakSet() {
+ // 1. If NewTarget is undefined, throw a TypeError exception.
+ if (!(this instanceof WeakSet)) {
+ throw new TypeError('Constructor WeakSet requires "new"');
+ }
+ // 2. Let set be ? OrdinaryCreateFromConstructor(NewTarget, "%WeakSetPrototype%", « [[WeakSetData]] »).
+ var set = OrdinaryCreateFromConstructor(this, WeakSet.prototype, {
+ _values: [],
+ _size: 0,
+ _es6WeakSet: true
+ });
+
+ // 3. Set set.[[WeakSetData]] to a new empty List.
+ // Polyfill.io - This step was done as part of step two.
+
+ // 4. If iterable is not present, let iterable be undefined.
+ var iterable = arguments.length > 0 ? arguments[0] : undefined;
+ // 5. If iterable is either undefined or null, return set.
+ if (iterable === null || iterable === undefined) {
+ return set;
+ }
+ // 6. Let adder be ? Get(set, "add").
+ var adder = Get(set, 'add');
+ // 7. If IsCallable(adder) is false, throw a TypeError exception.
+ if (!IsCallable(adder)) {
+ throw new TypeError("WeakSet.prototype.add is not a function");
+ }
+ try {
+ // 8. Let iteratorRecord be ? GetIterator(iterable).
+ var iteratorRecord = GetIterator(iterable);
+ // 9. Repeat,
+ while (true) {
+ // a. Let next be ? IteratorStep(iteratorRecord).
+ var next = IteratorStep(iteratorRecord);
+ // b. If next is false, return set.
+ if (next === false) {
+ return set;
+ }
+ // c. Let nextValue be ? IteratorValue(next).
+ var nextValue = IteratorValue(next);
+ // d. Let status be Call(adder, set, « nextValue »).
+ try {
+ Call(adder, set, [nextValue]);
+ } catch (e) {
+ // e. If status is an abrupt completion, return ? IteratorClose(iteratorRecord, status).
+ return IteratorClose(iteratorRecord, e);
+ }
+ }
+ } catch (e) {
+ // Polyfill.io - For user agents which do not have iteration methods on argument objects or arrays, we can special case those.
+ if (IsArray(iterable) ||
+ Object.prototype.toString.call(iterable) === '[object Arguments]' ||
+ // IE 7 & IE 8 return '[object Object]' for the arguments object, we can detect by checking for the existence of the callee property
+ (!!iterable.callee)) {
+ var index;
+ var length = iterable.length;
+ for (index = 0; index < length; index++) {
+ Call(adder, set, [iterable[index]]);
+ }
+ }
+ }
+ return set;
+ };
+
+ // 23.4.2.1. WeakSet.prototype
+ // The initial value of WeakSet.prototype is the intrinsic %WeakSetPrototype% object.
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+ Object.defineProperty(WeakSet, 'prototype', {
+ configurable: false,
+ enumerable: false,
+ writable: false,
+ value: {}
+ });
+
+ // 23.4.3.1. WeakSet.prototype.add ( value )
+ CreateMethodProperty(WeakSet.prototype, 'add', function add(value) {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (Type(S) !== 'object') {
+ throw new TypeError('Method WeakSet.prototype.add called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[WeakSetData]] internal slot, throw a TypeError exception.
+ if (S._es6WeakSet !== true) {
+ throw new TypeError('Method WeakSet.prototype.add called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. If Type(value) is not Object, throw a TypeError exception.
+ if (Type(value) !== 'object') {
+ throw new TypeError('Invalid value used in weak set');
+ }
+ // 5. Let entries be the List that is S.[[WeakSetData]].
+ var entries = S._values;
+ // 6. For each e that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i];
+ // a. If e is not empty and SameValue(e, value) is true, then
+ if (e !== undefMarker && SameValueZero(e, value)) {
+ // i. Return S.
+ return S;
+ }
+ }
+ // 7. Append value as the last element of entries.
+ S._values.push(value);
+ // 8. Return S.
+ return S;
+ });
+
+ // 23.4.3.2. WeakSet.prototype.constructor
+ CreateMethodProperty(WeakSet.prototype, 'constructor', WeakSet);
+
+ // 23.4.3.3. WeakSet.prototype.delete ( value )
+ CreateMethodProperty(WeakSet.prototype, 'delete', function (value) {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (Type(S) !== 'object') {
+ throw new TypeError('Method WeakSet.prototype.delete called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[WeakSetData]] internal slot, throw a TypeError exception.
+ if (S._es6WeakSet !== true) {
+ throw new TypeError('Method WeakSet.prototype.delete called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. If Type(value) is not Object, return false.
+ if (Type(value) !== 'object') {
+ return false;
+ }
+ // 5. Let entries be the List that is S.[[WeakSetData]].
+ var entries = S._values;
+ // 6. For each e that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i];
+ // a. If e is not empty and SameValue(e, value) is true, then
+ if (e !== undefMarker && SameValueZero(e, value)) {
+ // i. Replace the element of entries whose value is e with an element whose value is empty.
+ entries[i] = undefMarker;
+ // ii. Return true.
+ return true;
+ }
+ }
+ // 7. Return false.
+ return false;
+ });
+
+ // 23.4.3.4. WeakSet.prototype.has ( value )
+ CreateMethodProperty(WeakSet.prototype, 'has', function has(value) {
+ // 1. Let S be the this value.
+ var S = this;
+ // 2. If Type(S) is not Object, throw a TypeError exception.
+ if (Type(S) !== 'object') {
+ throw new TypeError('Method WeakSet.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 3. If S does not have a [[WeakSetData]] internal slot, throw a TypeError exception.
+ if (S._es6WeakSet !== true) {
+ throw new TypeError('Method WeakSet.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(S));
+ }
+ // 4. Let entries be the List that is S.[[WeakSetData]].
+ var entries = S._values;
+ // 5. If Type(value) is not Object, return false.
+ if (Type(value) !== 'object') {
+ return false;
+ }
+ // 6. For each e that is an element of entries, do
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i];
+ // a. If e is not empty and SameValue(e, value) is true, return true.
+ if (e !== undefMarker && SameValueZero(e, value)) {
+ return true;
+ }
+ }
+ // 7. Return false.
+ return false;
+ });
+
+ // 23.4.3.5. WeakSet.prototype [ @@toStringTag ]
+ // The initial value of the @@toStringTag property is the String value "WeakSet".
+ // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+
+ // Polyfill.io - Safari 8 implements Set.name but as a non-configurable property, which means it would throw an error if we try and configure it here.
+ if (!('name' in WeakSet)) {
+ // 19.2.4.2 name
+ Object.defineProperty(WeakSet, 'name', {
+ configurable: true,
+ enumerable: false,
+ writable: false,
+ value: 'WeakSet'
+ });
+ }
+
+ // Export the object
+ try {
+ CreateMethodProperty(global, 'WeakSet', WeakSet);
+ } catch (e) {
+ // IE8 throws an error here if we set enumerable to false.
+ // More info on table 2: https://msdn.microsoft.com/en-us/library/dd229916(v=vs.85).aspx
+ global['WeakSet'] = WeakSet;
+ }
+
+}(this));
+
+}
+
+})
+.call('object' === typeof window && window || 'object' === typeof self && self || 'object' === typeof global && global || {});
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