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							330 lines
						
					
					
						
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							330 lines
						
					
					
						
							12 KiB
						
					
					
				'use strict'; | 
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 | 
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var undefined; | 
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 | 
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var $SyntaxError = SyntaxError; | 
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var $Function = Function; | 
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var $TypeError = TypeError; | 
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 | 
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// eslint-disable-next-line consistent-return | 
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var getEvalledConstructor = function (expressionSyntax) { | 
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	try { | 
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		return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')(); | 
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	} catch (e) {} | 
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}; | 
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 | 
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var $gOPD = Object.getOwnPropertyDescriptor; | 
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if ($gOPD) { | 
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	try { | 
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		$gOPD({}, ''); | 
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	} catch (e) { | 
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		$gOPD = null; // this is IE 8, which has a broken gOPD | 
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	} | 
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} | 
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 | 
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var throwTypeError = function () { | 
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	throw new $TypeError(); | 
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}; | 
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var ThrowTypeError = $gOPD | 
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	? (function () { | 
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		try { | 
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			// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties | 
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			arguments.callee; // IE 8 does not throw here | 
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			return throwTypeError; | 
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		} catch (calleeThrows) { | 
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			try { | 
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				// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '') | 
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				return $gOPD(arguments, 'callee').get; | 
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			} catch (gOPDthrows) { | 
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				return throwTypeError; | 
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			} | 
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		} | 
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	}()) | 
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	: throwTypeError; | 
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 | 
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var hasSymbols = require('has-symbols')(); | 
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 | 
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var getProto = Object.getPrototypeOf || function (x) { return x.__proto__; }; // eslint-disable-line no-proto | 
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 | 
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var needsEval = {}; | 
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 | 
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var TypedArray = typeof Uint8Array === 'undefined' ? undefined : getProto(Uint8Array); | 
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 | 
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var INTRINSICS = { | 
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	'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError, | 
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	'%Array%': Array, | 
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	'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer, | 
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	'%ArrayIteratorPrototype%': hasSymbols ? getProto([][Symbol.iterator]()) : undefined, | 
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	'%AsyncFromSyncIteratorPrototype%': undefined, | 
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	'%AsyncFunction%': needsEval, | 
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	'%AsyncGenerator%': needsEval, | 
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	'%AsyncGeneratorFunction%': needsEval, | 
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	'%AsyncIteratorPrototype%': needsEval, | 
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	'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics, | 
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	'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt, | 
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	'%Boolean%': Boolean, | 
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	'%DataView%': typeof DataView === 'undefined' ? undefined : DataView, | 
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	'%Date%': Date, | 
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	'%decodeURI%': decodeURI, | 
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	'%decodeURIComponent%': decodeURIComponent, | 
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	'%encodeURI%': encodeURI, | 
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	'%encodeURIComponent%': encodeURIComponent, | 
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	'%Error%': Error, | 
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	'%eval%': eval, // eslint-disable-line no-eval | 
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	'%EvalError%': EvalError, | 
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	'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array, | 
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	'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array, | 
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	'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry, | 
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	'%Function%': $Function, | 
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	'%GeneratorFunction%': needsEval, | 
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	'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array, | 
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	'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array, | 
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	'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array, | 
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	'%isFinite%': isFinite, | 
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	'%isNaN%': isNaN, | 
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	'%IteratorPrototype%': hasSymbols ? getProto(getProto([][Symbol.iterator]())) : undefined, | 
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	'%JSON%': typeof JSON === 'object' ? JSON : undefined, | 
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	'%Map%': typeof Map === 'undefined' ? undefined : Map, | 
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	'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols ? undefined : getProto(new Map()[Symbol.iterator]()), | 
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	'%Math%': Math, | 
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	'%Number%': Number, | 
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	'%Object%': Object, | 
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	'%parseFloat%': parseFloat, | 
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	'%parseInt%': parseInt, | 
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	'%Promise%': typeof Promise === 'undefined' ? undefined : Promise, | 
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	'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy, | 
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	'%RangeError%': RangeError, | 
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	'%ReferenceError%': ReferenceError, | 
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	'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect, | 
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	'%RegExp%': RegExp, | 
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	'%Set%': typeof Set === 'undefined' ? undefined : Set, | 
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	'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols ? undefined : getProto(new Set()[Symbol.iterator]()), | 
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	'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer, | 
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	'%String%': String, | 
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	'%StringIteratorPrototype%': hasSymbols ? getProto(''[Symbol.iterator]()) : undefined, | 
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	'%Symbol%': hasSymbols ? Symbol : undefined, | 
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	'%SyntaxError%': $SyntaxError, | 
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	'%ThrowTypeError%': ThrowTypeError, | 
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	'%TypedArray%': TypedArray, | 
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	'%TypeError%': $TypeError, | 
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	'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array, | 
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	'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray, | 
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	'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array, | 
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	'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array, | 
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	'%URIError%': URIError, | 
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	'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap, | 
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	'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef, | 
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	'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet | 
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}; | 
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 | 
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var doEval = function doEval(name) { | 
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	var value; | 
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	if (name === '%AsyncFunction%') { | 
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		value = getEvalledConstructor('async function () {}'); | 
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	} else if (name === '%GeneratorFunction%') { | 
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		value = getEvalledConstructor('function* () {}'); | 
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	} else if (name === '%AsyncGeneratorFunction%') { | 
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		value = getEvalledConstructor('async function* () {}'); | 
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	} else if (name === '%AsyncGenerator%') { | 
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		var fn = doEval('%AsyncGeneratorFunction%'); | 
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		if (fn) { | 
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			value = fn.prototype; | 
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		} | 
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	} else if (name === '%AsyncIteratorPrototype%') { | 
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		var gen = doEval('%AsyncGenerator%'); | 
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		if (gen) { | 
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			value = getProto(gen.prototype); | 
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		} | 
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	} | 
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 | 
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	INTRINSICS[name] = value; | 
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 | 
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	return value; | 
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}; | 
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 | 
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var LEGACY_ALIASES = { | 
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	'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'], | 
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	'%ArrayPrototype%': ['Array', 'prototype'], | 
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	'%ArrayProto_entries%': ['Array', 'prototype', 'entries'], | 
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	'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'], | 
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	'%ArrayProto_keys%': ['Array', 'prototype', 'keys'], | 
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	'%ArrayProto_values%': ['Array', 'prototype', 'values'], | 
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	'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'], | 
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	'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'], | 
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	'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'], | 
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	'%BooleanPrototype%': ['Boolean', 'prototype'], | 
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	'%DataViewPrototype%': ['DataView', 'prototype'], | 
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	'%DatePrototype%': ['Date', 'prototype'], | 
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	'%ErrorPrototype%': ['Error', 'prototype'], | 
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	'%EvalErrorPrototype%': ['EvalError', 'prototype'], | 
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	'%Float32ArrayPrototype%': ['Float32Array', 'prototype'], | 
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	'%Float64ArrayPrototype%': ['Float64Array', 'prototype'], | 
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	'%FunctionPrototype%': ['Function', 'prototype'], | 
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	'%Generator%': ['GeneratorFunction', 'prototype'], | 
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	'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'], | 
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	'%Int8ArrayPrototype%': ['Int8Array', 'prototype'], | 
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	'%Int16ArrayPrototype%': ['Int16Array', 'prototype'], | 
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	'%Int32ArrayPrototype%': ['Int32Array', 'prototype'], | 
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	'%JSONParse%': ['JSON', 'parse'], | 
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	'%JSONStringify%': ['JSON', 'stringify'], | 
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	'%MapPrototype%': ['Map', 'prototype'], | 
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	'%NumberPrototype%': ['Number', 'prototype'], | 
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	'%ObjectPrototype%': ['Object', 'prototype'], | 
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	'%ObjProto_toString%': ['Object', 'prototype', 'toString'], | 
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	'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'], | 
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	'%PromisePrototype%': ['Promise', 'prototype'], | 
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	'%PromiseProto_then%': ['Promise', 'prototype', 'then'], | 
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	'%Promise_all%': ['Promise', 'all'], | 
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	'%Promise_reject%': ['Promise', 'reject'], | 
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	'%Promise_resolve%': ['Promise', 'resolve'], | 
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	'%RangeErrorPrototype%': ['RangeError', 'prototype'], | 
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	'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'], | 
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	'%RegExpPrototype%': ['RegExp', 'prototype'], | 
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	'%SetPrototype%': ['Set', 'prototype'], | 
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	'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'], | 
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	'%StringPrototype%': ['String', 'prototype'], | 
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	'%SymbolPrototype%': ['Symbol', 'prototype'], | 
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	'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'], | 
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	'%TypedArrayPrototype%': ['TypedArray', 'prototype'], | 
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	'%TypeErrorPrototype%': ['TypeError', 'prototype'], | 
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	'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'], | 
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	'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'], | 
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	'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'], | 
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	'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'], | 
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	'%URIErrorPrototype%': ['URIError', 'prototype'], | 
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	'%WeakMapPrototype%': ['WeakMap', 'prototype'], | 
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	'%WeakSetPrototype%': ['WeakSet', 'prototype'] | 
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}; | 
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 | 
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var bind = require('function-bind'); | 
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var hasOwn = require('has'); | 
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var $concat = bind.call(Function.call, Array.prototype.concat); | 
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var $spliceApply = bind.call(Function.apply, Array.prototype.splice); | 
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var $replace = bind.call(Function.call, String.prototype.replace); | 
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var $strSlice = bind.call(Function.call, String.prototype.slice); | 
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 | 
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/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */ | 
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var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g; | 
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var reEscapeChar = /\\(\\)?/g; /** Used to match backslashes in property paths. */ | 
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var stringToPath = function stringToPath(string) { | 
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	var first = $strSlice(string, 0, 1); | 
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	var last = $strSlice(string, -1); | 
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	if (first === '%' && last !== '%') { | 
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		throw new $SyntaxError('invalid intrinsic syntax, expected closing `%`'); | 
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	} else if (last === '%' && first !== '%') { | 
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		throw new $SyntaxError('invalid intrinsic syntax, expected opening `%`'); | 
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	} | 
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	var result = []; | 
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	$replace(string, rePropName, function (match, number, quote, subString) { | 
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		result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match; | 
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	}); | 
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	return result; | 
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}; | 
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/* end adaptation */ | 
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var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) { | 
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	var intrinsicName = name; | 
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	var alias; | 
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	if (hasOwn(LEGACY_ALIASES, intrinsicName)) { | 
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		alias = LEGACY_ALIASES[intrinsicName]; | 
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		intrinsicName = '%' + alias[0] + '%'; | 
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	} | 
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 | 
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	if (hasOwn(INTRINSICS, intrinsicName)) { | 
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		var value = INTRINSICS[intrinsicName]; | 
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		if (value === needsEval) { | 
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			value = doEval(intrinsicName); | 
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		} | 
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		if (typeof value === 'undefined' && !allowMissing) { | 
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			throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!'); | 
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		} | 
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 | 
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		return { | 
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			alias: alias, | 
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			name: intrinsicName, | 
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			value: value | 
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		}; | 
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	} | 
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 | 
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	throw new $SyntaxError('intrinsic ' + name + ' does not exist!'); | 
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}; | 
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module.exports = function GetIntrinsic(name, allowMissing) { | 
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	if (typeof name !== 'string' || name.length === 0) { | 
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		throw new $TypeError('intrinsic name must be a non-empty string'); | 
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	} | 
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	if (arguments.length > 1 && typeof allowMissing !== 'boolean') { | 
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		throw new $TypeError('"allowMissing" argument must be a boolean'); | 
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	} | 
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 | 
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	var parts = stringToPath(name); | 
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	var intrinsicBaseName = parts.length > 0 ? parts[0] : ''; | 
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 | 
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	var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing); | 
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	var intrinsicRealName = intrinsic.name; | 
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	var value = intrinsic.value; | 
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	var skipFurtherCaching = false; | 
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 | 
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	var alias = intrinsic.alias; | 
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	if (alias) { | 
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		intrinsicBaseName = alias[0]; | 
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		$spliceApply(parts, $concat([0, 1], alias)); | 
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	} | 
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 | 
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	for (var i = 1, isOwn = true; i < parts.length; i += 1) { | 
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		var part = parts[i]; | 
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		var first = $strSlice(part, 0, 1); | 
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		var last = $strSlice(part, -1); | 
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		if ( | 
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			( | 
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				(first === '"' || first === "'" || first === '`') | 
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				|| (last === '"' || last === "'" || last === '`') | 
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			) | 
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			&& first !== last | 
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		) { | 
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			throw new $SyntaxError('property names with quotes must have matching quotes'); | 
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		} | 
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		if (part === 'constructor' || !isOwn) { | 
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			skipFurtherCaching = true; | 
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		} | 
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 | 
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		intrinsicBaseName += '.' + part; | 
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		intrinsicRealName = '%' + intrinsicBaseName + '%'; | 
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 | 
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		if (hasOwn(INTRINSICS, intrinsicRealName)) { | 
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			value = INTRINSICS[intrinsicRealName]; | 
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		} else if (value != null) { | 
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			if (!(part in value)) { | 
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				if (!allowMissing) { | 
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					throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.'); | 
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				} | 
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				return void undefined; | 
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			} | 
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			if ($gOPD && (i + 1) >= parts.length) { | 
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				var desc = $gOPD(value, part); | 
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				isOwn = !!desc; | 
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 | 
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				// By convention, when a data property is converted to an accessor | 
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				// property to emulate a data property that does not suffer from | 
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				// the override mistake, that accessor's getter is marked with | 
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				// an `originalValue` property. Here, when we detect this, we | 
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				// uphold the illusion by pretending to see that original data | 
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				// property, i.e., returning the value rather than the getter | 
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				// itself. | 
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				if (isOwn && 'get' in desc && !('originalValue' in desc.get)) { | 
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					value = desc.get; | 
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				} else { | 
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					value = value[part]; | 
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				} | 
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			} else { | 
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				isOwn = hasOwn(value, part); | 
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				value = value[part]; | 
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			} | 
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 | 
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			if (isOwn && !skipFurtherCaching) { | 
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				INTRINSICS[intrinsicRealName] = value; | 
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			} | 
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		} | 
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	} | 
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	return value; | 
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};
 | 
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 |