You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
218 lines
9.8 KiB
218 lines
9.8 KiB
'use strict'; |
|
|
|
/* globals |
|
Atomics, |
|
SharedArrayBuffer, |
|
*/ |
|
|
|
var undefined; |
|
|
|
var $TypeError = TypeError; |
|
|
|
var $gOPD = Object.getOwnPropertyDescriptor; |
|
if ($gOPD) { |
|
try { |
|
$gOPD({}, ''); |
|
} catch (e) { |
|
$gOPD = null; // this is IE 8, which has a broken gOPD |
|
} |
|
} |
|
|
|
var throwTypeError = function () { throw new $TypeError(); }; |
|
var ThrowTypeError = $gOPD |
|
? (function () { |
|
try { |
|
// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties |
|
arguments.callee; // IE 8 does not throw here |
|
return throwTypeError; |
|
} catch (calleeThrows) { |
|
try { |
|
// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '') |
|
return $gOPD(arguments, 'callee').get; |
|
} catch (gOPDthrows) { |
|
return throwTypeError; |
|
} |
|
} |
|
}()) |
|
: throwTypeError; |
|
|
|
var hasSymbols = require('has-symbols')(); |
|
|
|
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%': typeof JSON === 'object' ? JSON : undefined, |
|
'%JSONParse%': typeof JSON === 'object' ? JSON.parse : undefined, |
|
'%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 |
|
}; |
|
|
|
var bind = require('function-bind'); |
|
var $replace = bind.call(Function.call, String.prototype.replace); |
|
|
|
/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */ |
|
var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g; |
|
var reEscapeChar = /\\(\\)?/g; /** Used to match backslashes in property paths. */ |
|
var stringToPath = function stringToPath(string) { |
|
var result = []; |
|
$replace(string, rePropName, function (match, number, quote, subString) { |
|
result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : (number || match); |
|
}); |
|
return result; |
|
}; |
|
/* end adaptation */ |
|
|
|
var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) { |
|
if (!(name in INTRINSICS)) { |
|
throw new SyntaxError('intrinsic ' + name + ' does not exist!'); |
|
} |
|
|
|
// istanbul ignore if // hopefully this is impossible to test :-) |
|
if (typeof INTRINSICS[name] === 'undefined' && !allowMissing) { |
|
throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!'); |
|
} |
|
|
|
return INTRINSICS[name]; |
|
}; |
|
|
|
module.exports = function GetIntrinsic(name, allowMissing) { |
|
if (typeof name !== 'string' || name.length === 0) { |
|
throw new TypeError('intrinsic name must be a non-empty string'); |
|
} |
|
if (arguments.length > 1 && typeof allowMissing !== 'boolean') { |
|
throw new TypeError('"allowMissing" argument must be a boolean'); |
|
} |
|
|
|
var parts = stringToPath(name); |
|
|
|
var value = getBaseIntrinsic('%' + (parts.length > 0 ? parts[0] : '') + '%', allowMissing); |
|
for (var i = 1; i < parts.length; i += 1) { |
|
if (value != null) { |
|
if ($gOPD && (i + 1) >= parts.length) { |
|
var desc = $gOPD(value, parts[i]); |
|
if (!allowMissing && !(parts[i] in value)) { |
|
throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.'); |
|
} |
|
value = desc ? (desc.get || desc.value) : value[parts[i]]; |
|
} else { |
|
value = value[parts[i]]; |
|
} |
|
} |
|
} |
|
return value; |
|
};
|
|
|