--- /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.
projects / rails.git / commitdiff