diff options
Diffstat (limited to 'node_modules/es-abstract/es2015.js')
| -rw-r--r-- | node_modules/es-abstract/es2015.js | 798 |
1 files changed, 110 insertions, 688 deletions
diff --git a/node_modules/es-abstract/es2015.js b/node_modules/es-abstract/es2015.js index 1a4d7de56..dc02ca4c8 100644 --- a/node_modules/es-abstract/es2015.js +++ b/node_modules/es-abstract/es2015.js @@ -1,693 +1,115 @@ 'use strict'; -var has = require('has'); -var toPrimitive = require('es-to-primitive/es6'); - -var GetIntrinsic = require('./GetIntrinsic'); - -var $TypeError = GetIntrinsic('%TypeError%'); -var $SyntaxError = GetIntrinsic('%SyntaxError%'); -var $Array = GetIntrinsic('%Array%'); -var $String = GetIntrinsic('%String%'); -var $Object = GetIntrinsic('%Object%'); -var $Number = GetIntrinsic('%Number%'); -var $Symbol = GetIntrinsic('%Symbol%', true); -var $RegExp = GetIntrinsic('%RegExp%'); - -var hasSymbols = !!$Symbol; - -var $isNaN = require('./helpers/isNaN'); -var $isFinite = require('./helpers/isFinite'); -var MAX_SAFE_INTEGER = $Number.MAX_SAFE_INTEGER || Math.pow(2, 53) - 1; - -var assign = require('./helpers/assign'); -var sign = require('./helpers/sign'); -var mod = require('./helpers/mod'); -var isPrimitive = require('./helpers/isPrimitive'); -var parseInteger = parseInt; -var bind = require('function-bind'); -var arraySlice = bind.call(Function.call, $Array.prototype.slice); -var strSlice = bind.call(Function.call, $String.prototype.slice); -var isBinary = bind.call(Function.call, $RegExp.prototype.test, /^0b[01]+$/i); -var isOctal = bind.call(Function.call, $RegExp.prototype.test, /^0o[0-7]+$/i); -var regexExec = bind.call(Function.call, $RegExp.prototype.exec); -var nonWS = ['\u0085', '\u200b', '\ufffe'].join(''); -var nonWSregex = new $RegExp('[' + nonWS + ']', 'g'); -var hasNonWS = bind.call(Function.call, $RegExp.prototype.test, nonWSregex); -var invalidHexLiteral = /^[-+]0x[0-9a-f]+$/i; -var isInvalidHexLiteral = bind.call(Function.call, $RegExp.prototype.test, invalidHexLiteral); -var $charCodeAt = bind.call(Function.call, $String.prototype.charCodeAt); - -var toStr = bind.call(Function.call, Object.prototype.toString); - -var $floor = Math.floor; -var $abs = Math.abs; - -var $ObjectCreate = Object.create; -var $gOPD = $Object.getOwnPropertyDescriptor; - -var $isExtensible = $Object.isExtensible; - -// whitespace from: http://es5.github.io/#x15.5.4.20 -// implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324 -var ws = [ - '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003', - '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028', - '\u2029\uFEFF' -].join(''); -var trimRegex = new RegExp('(^[' + ws + ']+)|([' + ws + ']+$)', 'g'); -var replace = bind.call(Function.call, $String.prototype.replace); -var trim = function (value) { - return replace(value, trimRegex, ''); +/* eslint global-require: 0 */ +// https://www.ecma-international.org/ecma-262/6.0/#sec-abstract-operations +var ES6 = { + 'Abstract Equality Comparison': require('./2015/AbstractEqualityComparison'), + 'Abstract Relational Comparison': require('./2015/AbstractRelationalComparison'), + 'Strict Equality Comparison': require('./2015/StrictEqualityComparison'), + AdvanceStringIndex: require('./2015/AdvanceStringIndex'), + ArrayCreate: require('./2015/ArrayCreate'), + ArraySetLength: require('./2015/ArraySetLength'), + ArraySpeciesCreate: require('./2015/ArraySpeciesCreate'), + Call: require('./2015/Call'), + CanonicalNumericIndexString: require('./2015/CanonicalNumericIndexString'), + CompletePropertyDescriptor: require('./2015/CompletePropertyDescriptor'), + CreateDataProperty: require('./2015/CreateDataProperty'), + CreateDataPropertyOrThrow: require('./2015/CreateDataPropertyOrThrow'), + CreateHTML: require('./2015/CreateHTML'), + CreateIterResultObject: require('./2015/CreateIterResultObject'), + CreateListFromArrayLike: require('./2015/CreateListFromArrayLike'), + CreateMethodProperty: require('./2015/CreateMethodProperty'), + DateFromTime: require('./2015/DateFromTime'), + Day: require('./2015/Day'), + DayFromYear: require('./2015/DayFromYear'), + DaysInYear: require('./2015/DaysInYear'), + DayWithinYear: require('./2015/DayWithinYear'), + DefinePropertyOrThrow: require('./2015/DefinePropertyOrThrow'), + DeletePropertyOrThrow: require('./2015/DeletePropertyOrThrow'), + EnumerableOwnNames: require('./2015/EnumerableOwnNames'), + FromPropertyDescriptor: require('./2015/FromPropertyDescriptor'), + Get: require('./2015/Get'), + GetIterator: require('./2015/GetIterator'), + GetMethod: require('./2015/GetMethod'), + GetOwnPropertyKeys: require('./2015/GetOwnPropertyKeys'), + GetPrototypeFromConstructor: require('./2015/GetPrototypeFromConstructor'), + GetSubstitution: require('./2015/GetSubstitution'), + GetV: require('./2015/GetV'), + HasOwnProperty: require('./2015/HasOwnProperty'), + HasProperty: require('./2015/HasProperty'), + HourFromTime: require('./2015/HourFromTime'), + InLeapYear: require('./2015/InLeapYear'), + InstanceofOperator: require('./2015/InstanceofOperator'), + Invoke: require('./2015/Invoke'), + IsAccessorDescriptor: require('./2015/IsAccessorDescriptor'), + IsArray: require('./2015/IsArray'), + IsCallable: require('./2015/IsCallable'), + IsConcatSpreadable: require('./2015/IsConcatSpreadable'), + IsConstructor: require('./2015/IsConstructor'), + IsDataDescriptor: require('./2015/IsDataDescriptor'), + IsExtensible: require('./2015/IsExtensible'), + IsGenericDescriptor: require('./2015/IsGenericDescriptor'), + IsInteger: require('./2015/IsInteger'), + IsPromise: require('./2015/IsPromise'), + IsPropertyDescriptor: require('./2015/IsPropertyDescriptor'), + IsPropertyKey: require('./2015/IsPropertyKey'), + IsRegExp: require('./2015/IsRegExp'), + IteratorClose: require('./2015/IteratorClose'), + IteratorComplete: require('./2015/IteratorComplete'), + IteratorNext: require('./2015/IteratorNext'), + IteratorStep: require('./2015/IteratorStep'), + IteratorValue: require('./2015/IteratorValue'), + MakeDate: require('./2015/MakeDate'), + MakeDay: require('./2015/MakeDay'), + MakeTime: require('./2015/MakeTime'), + MinFromTime: require('./2015/MinFromTime'), + modulo: require('./2015/modulo'), + MonthFromTime: require('./2015/MonthFromTime'), + msFromTime: require('./2015/msFromTime'), + ObjectCreate: require('./2015/ObjectCreate'), + OrdinaryDefineOwnProperty: require('./2015/OrdinaryDefineOwnProperty'), + OrdinaryGetOwnProperty: require('./2015/OrdinaryGetOwnProperty'), + OrdinaryHasInstance: require('./2015/OrdinaryHasInstance'), + OrdinaryHasProperty: require('./2015/OrdinaryHasProperty'), + RegExpExec: require('./2015/RegExpExec'), + RequireObjectCoercible: require('./2015/RequireObjectCoercible'), + SameValue: require('./2015/SameValue'), + SameValueZero: require('./2015/SameValueZero'), + SecFromTime: require('./2015/SecFromTime'), + Set: require('./2015/Set'), + SetFunctionName: require('./2015/SetFunctionName'), + SetIntegrityLevel: require('./2015/SetIntegrityLevel'), + SpeciesConstructor: require('./2015/SpeciesConstructor'), + SymbolDescriptiveString: require('./2015/SymbolDescriptiveString'), + TestIntegrityLevel: require('./2015/TestIntegrityLevel'), + thisBooleanValue: require('./2015/thisBooleanValue'), + thisNumberValue: require('./2015/thisNumberValue'), + thisStringValue: require('./2015/thisStringValue'), + thisTimeValue: require('./2015/thisTimeValue'), + TimeClip: require('./2015/TimeClip'), + TimeFromYear: require('./2015/TimeFromYear'), + TimeWithinDay: require('./2015/TimeWithinDay'), + ToBoolean: require('./2015/ToBoolean'), + ToDateString: require('./2015/ToDateString'), + ToInt16: require('./2015/ToInt16'), + ToInt32: require('./2015/ToInt32'), + ToInt8: require('./2015/ToInt8'), + ToInteger: require('./2015/ToInteger'), + ToLength: require('./2015/ToLength'), + ToNumber: require('./2015/ToNumber'), + ToObject: require('./2015/ToObject'), + ToPrimitive: require('./2015/ToPrimitive'), + ToPropertyDescriptor: require('./2015/ToPropertyDescriptor'), + ToPropertyKey: require('./2015/ToPropertyKey'), + ToString: require('./2015/ToString'), + ToUint16: require('./2015/ToUint16'), + ToUint32: require('./2015/ToUint32'), + ToUint8: require('./2015/ToUint8'), + ToUint8Clamp: require('./2015/ToUint8Clamp'), + Type: require('./2015/Type'), + ValidateAndApplyPropertyDescriptor: require('./2015/ValidateAndApplyPropertyDescriptor'), + WeekDay: require('./2015/WeekDay'), + YearFromTime: require('./2015/YearFromTime') }; -var ES5 = require('./es5'); - -var hasRegExpMatcher = require('is-regex'); - -// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-abstract-operations -var ES6 = assign(assign({}, ES5), { - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-call-f-v-args - Call: function Call(F, V) { - var args = arguments.length > 2 ? arguments[2] : []; - if (!this.IsCallable(F)) { - throw new $TypeError(F + ' is not a function'); - } - return F.apply(V, args); - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toprimitive - ToPrimitive: toPrimitive, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toboolean - // ToBoolean: ES5.ToBoolean, - - // https://ecma-international.org/ecma-262/6.0/#sec-tonumber - ToNumber: function ToNumber(argument) { - var value = isPrimitive(argument) ? argument : toPrimitive(argument, $Number); - if (typeof value === 'symbol') { - throw new $TypeError('Cannot convert a Symbol value to a number'); - } - if (typeof value === 'string') { - if (isBinary(value)) { - return this.ToNumber(parseInteger(strSlice(value, 2), 2)); - } else if (isOctal(value)) { - return this.ToNumber(parseInteger(strSlice(value, 2), 8)); - } else if (hasNonWS(value) || isInvalidHexLiteral(value)) { - return NaN; - } else { - var trimmed = trim(value); - if (trimmed !== value) { - return this.ToNumber(trimmed); - } - } - } - return $Number(value); - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tointeger - // ToInteger: ES5.ToNumber, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint32 - // ToInt32: ES5.ToInt32, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint32 - // ToUint32: ES5.ToUint32, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint16 - ToInt16: function ToInt16(argument) { - var int16bit = this.ToUint16(argument); - return int16bit >= 0x8000 ? int16bit - 0x10000 : int16bit; - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint16 - // ToUint16: ES5.ToUint16, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toint8 - ToInt8: function ToInt8(argument) { - var int8bit = this.ToUint8(argument); - return int8bit >= 0x80 ? int8bit - 0x100 : int8bit; - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint8 - ToUint8: function ToUint8(argument) { - var number = this.ToNumber(argument); - if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; } - var posInt = sign(number) * $floor($abs(number)); - return mod(posInt, 0x100); - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-touint8clamp - ToUint8Clamp: function ToUint8Clamp(argument) { - var number = this.ToNumber(argument); - if ($isNaN(number) || number <= 0) { return 0; } - if (number >= 0xFF) { return 0xFF; } - var f = $floor(argument); - if (f + 0.5 < number) { return f + 1; } - if (number < f + 0.5) { return f; } - if (f % 2 !== 0) { return f + 1; } - return f; - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tostring - ToString: function ToString(argument) { - if (typeof argument === 'symbol') { - throw new $TypeError('Cannot convert a Symbol value to a string'); - } - return $String(argument); - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-toobject - ToObject: function ToObject(value) { - this.RequireObjectCoercible(value); - return $Object(value); - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-topropertykey - ToPropertyKey: function ToPropertyKey(argument) { - var key = this.ToPrimitive(argument, $String); - return typeof key === 'symbol' ? key : this.ToString(key); - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength - ToLength: function ToLength(argument) { - var len = this.ToInteger(argument); - if (len <= 0) { return 0; } // includes converting -0 to +0 - if (len > MAX_SAFE_INTEGER) { return MAX_SAFE_INTEGER; } - return len; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring - CanonicalNumericIndexString: function CanonicalNumericIndexString(argument) { - if (toStr(argument) !== '[object String]') { - throw new $TypeError('must be a string'); - } - if (argument === '-0') { return -0; } - var n = this.ToNumber(argument); - if (this.SameValue(this.ToString(n), argument)) { return n; } - return void 0; - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-requireobjectcoercible - RequireObjectCoercible: ES5.CheckObjectCoercible, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isarray - IsArray: $Array.isArray || function IsArray(argument) { - return toStr(argument) === '[object Array]'; - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-iscallable - // IsCallable: ES5.IsCallable, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isconstructor - IsConstructor: function IsConstructor(argument) { - return typeof argument === 'function' && !!argument.prototype; // unfortunately there's no way to truly check this without try/catch `new argument` - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isextensible-o - IsExtensible: Object.preventExtensions - ? function IsExtensible(obj) { - if (isPrimitive(obj)) { - return false; - } - return $isExtensible(obj); - } - : function isExtensible(obj) { return true; }, // eslint-disable-line no-unused-vars - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isinteger - IsInteger: function IsInteger(argument) { - if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) { - return false; - } - var abs = $abs(argument); - return $floor(abs) === abs; - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-ispropertykey - IsPropertyKey: function IsPropertyKey(argument) { - return typeof argument === 'string' || typeof argument === 'symbol'; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-isregexp - IsRegExp: function IsRegExp(argument) { - if (!argument || typeof argument !== 'object') { - return false; - } - if (hasSymbols) { - var isRegExp = argument[$Symbol.match]; - if (typeof isRegExp !== 'undefined') { - return ES5.ToBoolean(isRegExp); - } - } - return hasRegExpMatcher(argument); - }, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevalue - // SameValue: ES5.SameValue, - - // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero - SameValueZero: function SameValueZero(x, y) { - return (x === y) || ($isNaN(x) && $isNaN(y)); - }, - - /** - * 7.3.2 GetV (V, P) - * 1. Assert: IsPropertyKey(P) is true. - * 2. Let O be ToObject(V). - * 3. ReturnIfAbrupt(O). - * 4. Return O.[[Get]](P, V). - */ - GetV: function GetV(V, P) { - // 7.3.2.1 - if (!this.IsPropertyKey(P)) { - throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true'); - } - - // 7.3.2.2-3 - var O = this.ToObject(V); - - // 7.3.2.4 - return O[P]; - }, - - /** - * 7.3.9 - https://ecma-international.org/ecma-262/6.0/#sec-getmethod - * 1. Assert: IsPropertyKey(P) is true. - * 2. Let func be GetV(O, P). - * 3. ReturnIfAbrupt(func). - * 4. If func is either undefined or null, return undefined. - * 5. If IsCallable(func) is false, throw a TypeError exception. - * 6. Return func. - */ - GetMethod: function GetMethod(O, P) { - // 7.3.9.1 - if (!this.IsPropertyKey(P)) { - throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true'); - } - - // 7.3.9.2 - var func = this.GetV(O, P); - - // 7.3.9.4 - if (func == null) { - return void 0; - } - - // 7.3.9.5 - if (!this.IsCallable(func)) { - throw new $TypeError(P + 'is not a function'); - } - - // 7.3.9.6 - return func; - }, - - /** - * 7.3.1 Get (O, P) - https://ecma-international.org/ecma-262/6.0/#sec-get-o-p - * 1. Assert: Type(O) is Object. - * 2. Assert: IsPropertyKey(P) is true. - * 3. Return O.[[Get]](P, O). - */ - Get: function Get(O, P) { - // 7.3.1.1 - if (this.Type(O) !== 'Object') { - throw new $TypeError('Assertion failed: Type(O) is not Object'); - } - // 7.3.1.2 - if (!this.IsPropertyKey(P)) { - throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true'); - } - // 7.3.1.3 - return O[P]; - }, - - Type: function Type(x) { - if (typeof x === 'symbol') { - return 'Symbol'; - } - return ES5.Type(x); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-speciesconstructor - SpeciesConstructor: function SpeciesConstructor(O, defaultConstructor) { - if (this.Type(O) !== 'Object') { - throw new $TypeError('Assertion failed: Type(O) is not Object'); - } - var C = O.constructor; - if (typeof C === 'undefined') { - return defaultConstructor; - } - if (this.Type(C) !== 'Object') { - throw new $TypeError('O.constructor is not an Object'); - } - var S = hasSymbols && $Symbol.species ? C[$Symbol.species] : void 0; - if (S == null) { - return defaultConstructor; - } - if (this.IsConstructor(S)) { - return S; - } - throw new $TypeError('no constructor found'); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-completepropertydescriptor - CompletePropertyDescriptor: function CompletePropertyDescriptor(Desc) { - if (!this.IsPropertyDescriptor(Desc)) { - throw new $TypeError('Desc must be a Property Descriptor'); - } - - if (this.IsGenericDescriptor(Desc) || this.IsDataDescriptor(Desc)) { - if (!has(Desc, '[[Value]]')) { - Desc['[[Value]]'] = void 0; - } - if (!has(Desc, '[[Writable]]')) { - Desc['[[Writable]]'] = false; - } - } else { - if (!has(Desc, '[[Get]]')) { - Desc['[[Get]]'] = void 0; - } - if (!has(Desc, '[[Set]]')) { - Desc['[[Set]]'] = void 0; - } - } - if (!has(Desc, '[[Enumerable]]')) { - Desc['[[Enumerable]]'] = false; - } - if (!has(Desc, '[[Configurable]]')) { - Desc['[[Configurable]]'] = false; - } - return Desc; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-set-o-p-v-throw - Set: function Set(O, P, V, Throw) { - if (this.Type(O) !== 'Object') { - throw new $TypeError('O must be an Object'); - } - if (!this.IsPropertyKey(P)) { - throw new $TypeError('P must be a Property Key'); - } - if (this.Type(Throw) !== 'Boolean') { - throw new $TypeError('Throw must be a Boolean'); - } - if (Throw) { - O[P] = V; - return true; - } else { - try { - O[P] = V; - } catch (e) { - return false; - } - } - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-hasownproperty - HasOwnProperty: function HasOwnProperty(O, P) { - if (this.Type(O) !== 'Object') { - throw new $TypeError('O must be an Object'); - } - if (!this.IsPropertyKey(P)) { - throw new $TypeError('P must be a Property Key'); - } - return has(O, P); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-hasproperty - HasProperty: function HasProperty(O, P) { - if (this.Type(O) !== 'Object') { - throw new $TypeError('O must be an Object'); - } - if (!this.IsPropertyKey(P)) { - throw new $TypeError('P must be a Property Key'); - } - return P in O; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-isconcatspreadable - IsConcatSpreadable: function IsConcatSpreadable(O) { - if (this.Type(O) !== 'Object') { - return false; - } - if (hasSymbols && typeof $Symbol.isConcatSpreadable === 'symbol') { - var spreadable = this.Get(O, Symbol.isConcatSpreadable); - if (typeof spreadable !== 'undefined') { - return this.ToBoolean(spreadable); - } - } - return this.IsArray(O); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-invoke - Invoke: function Invoke(O, P) { - if (!this.IsPropertyKey(P)) { - throw new $TypeError('P must be a Property Key'); - } - var argumentsList = arraySlice(arguments, 2); - var func = this.GetV(O, P); - return this.Call(func, O, argumentsList); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-getiterator - GetIterator: function GetIterator(obj, method) { - if (!hasSymbols) { - throw new SyntaxError('ES.GetIterator depends on native iterator support.'); - } - - var actualMethod = method; - if (arguments.length < 2) { - actualMethod = this.GetMethod(obj, $Symbol.iterator); - } - var iterator = this.Call(actualMethod, obj); - if (this.Type(iterator) !== 'Object') { - throw new $TypeError('iterator must return an object'); - } - - return iterator; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-iteratornext - IteratorNext: function IteratorNext(iterator, value) { - var result = this.Invoke(iterator, 'next', arguments.length < 2 ? [] : [value]); - if (this.Type(result) !== 'Object') { - throw new $TypeError('iterator next must return an object'); - } - return result; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-iteratorcomplete - IteratorComplete: function IteratorComplete(iterResult) { - if (this.Type(iterResult) !== 'Object') { - throw new $TypeError('Assertion failed: Type(iterResult) is not Object'); - } - return this.ToBoolean(this.Get(iterResult, 'done')); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-iteratorvalue - IteratorValue: function IteratorValue(iterResult) { - if (this.Type(iterResult) !== 'Object') { - throw new $TypeError('Assertion failed: Type(iterResult) is not Object'); - } - return this.Get(iterResult, 'value'); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-iteratorstep - IteratorStep: function IteratorStep(iterator) { - var result = this.IteratorNext(iterator); - var done = this.IteratorComplete(result); - return done === true ? false : result; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-iteratorclose - IteratorClose: function IteratorClose(iterator, completion) { - if (this.Type(iterator) !== 'Object') { - throw new $TypeError('Assertion failed: Type(iterator) is not Object'); - } - if (!this.IsCallable(completion)) { - throw new $TypeError('Assertion failed: completion is not a thunk for a Completion Record'); - } - var completionThunk = completion; - - var iteratorReturn = this.GetMethod(iterator, 'return'); - - if (typeof iteratorReturn === 'undefined') { - return completionThunk(); - } - - var completionRecord; - try { - var innerResult = this.Call(iteratorReturn, iterator, []); - } catch (e) { - // if we hit here, then "e" is the innerResult completion that needs re-throwing - - // if the completion is of type "throw", this will throw. - completionRecord = completionThunk(); - completionThunk = null; // ensure it's not called twice. - - // if not, then return the innerResult completion - throw e; - } - completionRecord = completionThunk(); // if innerResult worked, then throw if the completion does - completionThunk = null; // ensure it's not called twice. - - if (this.Type(innerResult) !== 'Object') { - throw new $TypeError('iterator .return must return an object'); - } - - return completionRecord; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-createiterresultobject - CreateIterResultObject: function CreateIterResultObject(value, done) { - if (this.Type(done) !== 'Boolean') { - throw new $TypeError('Assertion failed: Type(done) is not Boolean'); - } - return { - value: value, - done: done - }; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-regexpexec - RegExpExec: function RegExpExec(R, S) { - if (this.Type(R) !== 'Object') { - throw new $TypeError('R must be an Object'); - } - if (this.Type(S) !== 'String') { - throw new $TypeError('S must be a String'); - } - var exec = this.Get(R, 'exec'); - if (this.IsCallable(exec)) { - var result = this.Call(exec, R, [S]); - if (result === null || this.Type(result) === 'Object') { - return result; - } - throw new $TypeError('"exec" method must return `null` or an Object'); - } - return regexExec(R, S); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-arrayspeciescreate - ArraySpeciesCreate: function ArraySpeciesCreate(originalArray, length) { - if (!this.IsInteger(length) || length < 0) { - throw new $TypeError('Assertion failed: length must be an integer >= 0'); - } - var len = length === 0 ? 0 : length; - var C; - var isArray = this.IsArray(originalArray); - if (isArray) { - C = this.Get(originalArray, 'constructor'); - // TODO: figure out how to make a cross-realm normal Array, a same-realm Array - // if (this.IsConstructor(C)) { - // if C is another realm's Array, C = undefined - // Object.getPrototypeOf(Object.getPrototypeOf(Object.getPrototypeOf(Array))) === null ? - // } - if (this.Type(C) === 'Object' && hasSymbols && $Symbol.species) { - C = this.Get(C, $Symbol.species); - if (C === null) { - C = void 0; - } - } - } - if (typeof C === 'undefined') { - return $Array(len); - } - if (!this.IsConstructor(C)) { - throw new $TypeError('C must be a constructor'); - } - return new C(len); // this.Construct(C, len); - }, - - CreateDataProperty: function CreateDataProperty(O, P, V) { - if (this.Type(O) !== 'Object') { - throw new $TypeError('Assertion failed: Type(O) is not Object'); - } - if (!this.IsPropertyKey(P)) { - throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true'); - } - var oldDesc = $gOPD(O, P); - var extensible = oldDesc || (typeof $isExtensible !== 'function' || $isExtensible(O)); - var immutable = oldDesc && (!oldDesc.writable || !oldDesc.configurable); - if (immutable || !extensible) { - return false; - } - var newDesc = { - configurable: true, - enumerable: true, - value: V, - writable: true - }; - Object.defineProperty(O, P, newDesc); - return true; - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-createdatapropertyorthrow - CreateDataPropertyOrThrow: function CreateDataPropertyOrThrow(O, P, V) { - if (this.Type(O) !== 'Object') { - throw new $TypeError('Assertion failed: Type(O) is not Object'); - } - if (!this.IsPropertyKey(P)) { - throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true'); - } - var success = this.CreateDataProperty(O, P, V); - if (!success) { - throw new $TypeError('unable to create data property'); - } - return success; - }, - - // https://www.ecma-international.org/ecma-262/6.0/#sec-objectcreate - ObjectCreate: function ObjectCreate(proto, internalSlotsList) { - if (proto !== null && this.Type(proto) !== 'Object') { - throw new $TypeError('Assertion failed: proto must be null or an object'); - } - var slots = arguments.length < 2 ? [] : internalSlotsList; - if (slots.length > 0) { - throw new $SyntaxError('es-abstract does not yet support internal slots'); - } - - if (proto === null && !$ObjectCreate) { - throw new $SyntaxError('native Object.create support is required to create null objects'); - } - - return $ObjectCreate(proto); - }, - - // https://ecma-international.org/ecma-262/6.0/#sec-advancestringindex - AdvanceStringIndex: function AdvanceStringIndex(S, index, unicode) { - if (this.Type(S) !== 'String') { - throw new $TypeError('S must be a String'); - } - if (!this.IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) { - throw new $TypeError('Assertion failed: length must be an integer >= 0 and <= 2**53'); - } - if (this.Type(unicode) !== 'Boolean') { - throw new $TypeError('Assertion failed: unicode must be a Boolean'); - } - if (!unicode) { - return index + 1; - } - var length = S.length; - if ((index + 1) >= length) { - return index + 1; - } - - var first = $charCodeAt(S, index); - if (first < 0xD800 || first > 0xDBFF) { - return index + 1; - } - - var second = $charCodeAt(S, index + 1); - if (second < 0xDC00 || second > 0xDFFF) { - return index + 1; - } - - return index + 2; - } -}); - -delete ES6.CheckObjectCoercible; // renamed in ES6 to RequireObjectCoercible - module.exports = ES6; |