✏️ Editing: GetIntrinsic.js Read Only

'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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