Edit: GetIntrinsic.js
'use strict'; /* globals Set, Map, WeakSet, WeakMap, Promise, Symbol, Proxy, Atomics, SharedArrayBuffer, ArrayBuffer, DataView, Uint8Array, Float32Array, Float64Array, Int8Array, Int16Array, Int32Array, Uint8ClampedArray, Uint16Array, Uint32Array, */ var undefined; // eslint-disable-line no-shadow-restricted-names var ThrowTypeError = Object.getOwnPropertyDescriptor ? (function () { return Object.getOwnPropertyDescriptor(arguments, 'callee').get; }()) : function () { throw new TypeError(); }; var hasSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol'; var getProto = Object.getPrototypeOf || function (x) { return x.__proto__; }; // eslint-disable-line no-proto var generator; // = function * () {}; var generatorFunction = generator ? getProto(generator) : undefined; var asyncFn; // async function() {}; var asyncFunction = asyncFn ? asyncFn.constructor : undefined; var asyncGen; // async function * () {}; var asyncGenFunction = asyncGen ? getProto(asyncGen) : undefined; var asyncGenIterator = asyncGen ? asyncGen() : undefined; var TypedArray = typeof Uint8Array === 'undefined' ? undefined : getProto(Uint8Array); var INTRINSICS = { '$ %Array%': Array, '$ %ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer, '$ %ArrayBufferPrototype%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer.prototype, '$ %ArrayIteratorPrototype%': hasSymbols ? getProto([][Symbol.iterator]()) : undefined, '$ %ArrayPrototype%': Array.prototype, '$ %ArrayProto_entries%': Array.prototype.entries, '$ %ArrayProto_forEach%': Array.prototype.forEach, '$ %ArrayProto_keys%': Array.prototype.keys, '$ %ArrayProto_values%': Array.prototype.values, '$ %AsyncFromSyncIteratorPrototype%': undefined, '$ %AsyncFunction%': asyncFunction, '$ %AsyncFunctionPrototype%': asyncFunction ? asyncFunction.prototype : undefined, '$ %AsyncGenerator%': asyncGen ? getProto(asyncGenIterator) : undefined, '$ %AsyncGeneratorFunction%': asyncGenFunction, '$ %AsyncGeneratorPrototype%': asyncGenFunction ? asyncGenFunction.prototype : undefined, '$ %AsyncIteratorPrototype%': asyncGenIterator && hasSymbols && Symbol.asyncIterator ? asyncGenIterator[Symbol.asyncIterator]() : undefined, '$ %Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics, '$ %Boolean%': Boolean, '$ %BooleanPrototype%': Boolean.prototype, '$ %DataView%': typeof DataView === 'undefined' ? undefined : DataView, '$ %DataViewPrototype%': typeof DataView === 'undefined' ? undefined : DataView.prototype, '$ %Date%': Date, '$ %DatePrototype%': Date.prototype, '$ %decodeURI%': decodeURI, '$ %decodeURIComponent%': decodeURIComponent, '$ %encodeURI%': encodeURI, '$ %encodeURIComponent%': encodeURIComponent, '$ %Error%': Error, '$ %ErrorPrototype%': Error.prototype, '$ %eval%': eval, // eslint-disable-line no-eval '$ %EvalError%': EvalError, '$ %EvalErrorPrototype%': EvalError.prototype, '$ %Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array, '$ %Float32ArrayPrototype%': typeof Float32Array === 'undefined' ? undefined : Float32Array.prototype, '$ %Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array, '$ %Float64ArrayPrototype%': typeof Float64Array === 'undefined' ? undefined : Float64Array.prototype, '$ %Function%': Function, '$ %FunctionPrototype%': Function.prototype, '$ %Generator%': generator ? getProto(generator()) : undefined, '$ %GeneratorFunction%': generatorFunction, '$ %GeneratorPrototype%': generatorFunction ? generatorFunction.prototype : undefined, '$ %Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array, '$ %Int8ArrayPrototype%': typeof Int8Array === 'undefined' ? undefined : Int8Array.prototype, '$ %Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array, '$ %Int16ArrayPrototype%': typeof Int16Array === 'undefined' ? undefined : Int8Array.prototype, '$ %Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array, '$ %Int32ArrayPrototype%': typeof Int32Array === 'undefined' ? undefined : Int32Array.prototype, '$ %isFinite%': isFinite, '$ %isNaN%': isNaN, '$ %IteratorPrototype%': hasSymbols ? getProto(getProto([][Symbol.iterator]())) : undefined, '$ %JSON%': JSON, '$ %JSONParse%': JSON.parse, '$ %Map%': typeof Map === 'undefined' ? undefined : Map, '$ %MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols ? undefined : getProto(new Map()[Symbol.iterator]()), '$ %MapPrototype%': typeof Map === 'undefined' ? undefined : Map.prototype, '$ %Math%': Math, '$ %Number%': Number, '$ %NumberPrototype%': Number.prototype, '$ %Object%': Object, '$ %ObjectPrototype%': Object.prototype, '$ %ObjProto_toString%': Object.prototype.toString, '$ %ObjProto_valueOf%': Object.prototype.valueOf, '$ %parseFloat%': parseFloat, '$ %parseInt%': parseInt, '$ %Promise%': typeof Promise === 'undefined' ? undefined : Promise, '$ %PromisePrototype%': typeof Promise === 'undefined' ? undefined : Promise.prototype, '$ %PromiseProto_then%': typeof Promise === 'undefined' ? undefined : Promise.prototype.then, '$ %Promise_all%': typeof Promise === 'undefined' ? undefined : Promise.all, '$ %Promise_reject%': typeof Promise === 'undefined' ? undefined : Promise.reject, '$ %Promise_resolve%': typeof Promise === 'undefined' ? undefined : Promise.resolve, '$ %Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy, '$ %RangeError%': RangeError, '$ %RangeErrorPrototype%': RangeError.prototype, '$ %ReferenceError%': ReferenceError, '$ %ReferenceErrorPrototype%': ReferenceError.prototype, '$ %Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect, '$ %RegExp%': RegExp, '$ %RegExpPrototype%': RegExp.prototype, '$ %Set%': typeof Set === 'undefined' ? undefined : Set, '$ %SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols ? undefined : getProto(new Set()[Symbol.iterator]()), '$ %SetPrototype%': typeof Set === 'undefined' ? undefined : Set.prototype, '$ %SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer, '$ %SharedArrayBufferPrototype%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer.prototype, '$ %String%': String, '$ %StringIteratorPrototype%': hasSymbols ? getProto(''[Symbol.iterator]()) : undefined, '$ %StringPrototype%': String.prototype, '$ %Symbol%': hasSymbols ? Symbol : undefined, '$ %SymbolPrototype%': hasSymbols ? Symbol.prototype : undefined, '$ %SyntaxError%': SyntaxError, '$ %SyntaxErrorPrototype%': SyntaxError.prototype, '$ %ThrowTypeError%': ThrowTypeError, '$ %TypedArray%': TypedArray, '$ %TypedArrayPrototype%': TypedArray ? TypedArray.prototype : undefined, '$ %TypeError%': TypeError, '$ %TypeErrorPrototype%': TypeError.prototype, '$ %Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array, '$ %Uint8ArrayPrototype%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array.prototype, '$ %Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray, '$ %Uint8ClampedArrayPrototype%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray.prototype, '$ %Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array, '$ %Uint16ArrayPrototype%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array.prototype, '$ %Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array, '$ %Uint32ArrayPrototype%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array.prototype, '$ %URIError%': URIError, '$ %URIErrorPrototype%': URIError.prototype, '$ %WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap, '$ %WeakMapPrototype%': typeof WeakMap === 'undefined' ? undefined : WeakMap.prototype, '$ %WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet, '$ %WeakSetPrototype%': typeof WeakSet === 'undefined' ? undefined : WeakSet.prototype }; module.exports = function GetIntrinsic(name, allowMissing) { if (arguments.length > 1 && typeof allowMissing !== 'boolean') { throw new TypeError('"allowMissing" argument must be a boolean'); } var key = '$ ' + name; if (!(key in INTRINSICS)) { throw new SyntaxError('intrinsic ' + name + ' does not exist!'); } // istanbul ignore if // hopefully this is impossible to test :-) if (typeof INTRINSICS[key] === 'undefined' && !allowMissing) { throw new TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!'); } return INTRINSICS[key]; };
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