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; | |
var undefined; | |
var $Error = require('es-errors'); | |
var $EvalError = require('es-errors/eval'); | |
var $RangeError = require('es-errors/range'); | |
var $ReferenceError = require('es-errors/ref'); | |
var $SyntaxError = require('es-errors/syntax'); | |
var $TypeError = require('es-errors/type'); | |
var $URIError = require('es-errors/uri'); | |
var $Function = Function; | |
// eslint-disable-next-line consistent-return | |
var getEvalledConstructor = function (expressionSyntax) { | |
try { | |
return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')(); | |
} catch (e) {} | |
}; | |
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 hasProto = require('has-proto')(); | |
var getProto = Object.getPrototypeOf || ( | |
hasProto | |
? function (x) { return x.__proto__; } // eslint-disable-line no-proto | |
: null | |
); | |
var needsEval = {}; | |
var TypedArray = typeof Uint8Array === 'undefined' || !getProto ? undefined : getProto(Uint8Array); | |
var INTRINSICS = { | |
__proto__: null, | |
'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError, | |
'%Array%': Array, | |
'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer, | |
'%ArrayIteratorPrototype%': hasSymbols && getProto ? getProto([][Symbol.iterator]()) : undefined, | |
'%AsyncFromSyncIteratorPrototype%': undefined, | |
'%AsyncFunction%': needsEval, | |
'%AsyncGenerator%': needsEval, | |
'%AsyncGeneratorFunction%': needsEval, | |
'%AsyncIteratorPrototype%': needsEval, | |
'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics, | |
'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt, | |
'%BigInt64Array%': typeof BigInt64Array === 'undefined' ? undefined : BigInt64Array, | |
'%BigUint64Array%': typeof BigUint64Array === 'undefined' ? undefined : BigUint64Array, | |
'%Boolean%': Boolean, | |
'%DataView%': typeof DataView === 'undefined' ? undefined : DataView, | |
'%Date%': Date, | |
'%decodeURI%': decodeURI, | |
'%decodeURIComponent%': decodeURIComponent, | |
'%encodeURI%': encodeURI, | |
'%encodeURIComponent%': encodeURIComponent, | |
'%Error%': $Error, | |
'%eval%': eval, // eslint-disable-line no-eval | |
'%EvalError%': $EvalError, | |
'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array, | |
'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array, | |
'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry, | |
'%Function%': $Function, | |
'%GeneratorFunction%': needsEval, | |
'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array, | |
'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array, | |
'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array, | |
'%isFinite%': isFinite, | |
'%isNaN%': isNaN, | |
'%IteratorPrototype%': hasSymbols && getProto ? getProto(getProto([][Symbol.iterator]())) : undefined, | |
'%JSON%': typeof JSON === 'object' ? JSON : undefined, | |
'%Map%': typeof Map === 'undefined' ? undefined : Map, | |
'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Map()[Symbol.iterator]()), | |
'%Math%': Math, | |
'%Number%': Number, | |
'%Object%': Object, | |
'%parseFloat%': parseFloat, | |
'%parseInt%': parseInt, | |
'%Promise%': typeof Promise === 'undefined' ? undefined : Promise, | |
'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy, | |
'%RangeError%': $RangeError, | |
'%ReferenceError%': $ReferenceError, | |
'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect, | |
'%RegExp%': RegExp, | |
'%Set%': typeof Set === 'undefined' ? undefined : Set, | |
'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Set()[Symbol.iterator]()), | |
'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer, | |
'%String%': String, | |
'%StringIteratorPrototype%': hasSymbols && getProto ? getProto(''[Symbol.iterator]()) : undefined, | |
'%Symbol%': hasSymbols ? Symbol : undefined, | |
'%SyntaxError%': $SyntaxError, | |
'%ThrowTypeError%': ThrowTypeError, | |
'%TypedArray%': TypedArray, | |
'%TypeError%': $TypeError, | |
'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array, | |
'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray, | |
'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array, | |
'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array, | |
'%URIError%': $URIError, | |
'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap, | |
'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef, | |
'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet | |
}; | |
if (getProto) { | |
try { | |
null.error; // eslint-disable-line no-unused-expressions | |
} catch (e) { | |
// https://github.com/tc39/proposal-shadowrealm/pull/384#issuecomment-1364264229 | |
var errorProto = getProto(getProto(e)); | |
INTRINSICS['%Error.prototype%'] = errorProto; | |
} | |
} | |
var doEval = function doEval(name) { | |
var value; | |
if (name === '%AsyncFunction%') { | |
value = getEvalledConstructor('async function () {}'); | |
} else if (name === '%GeneratorFunction%') { | |
value = getEvalledConstructor('function* () {}'); | |
} else if (name === '%AsyncGeneratorFunction%') { | |
value = getEvalledConstructor('async function* () {}'); | |
} else if (name === '%AsyncGenerator%') { | |
var fn = doEval('%AsyncGeneratorFunction%'); | |
if (fn) { | |
value = fn.prototype; | |
} | |
} else if (name === '%AsyncIteratorPrototype%') { | |
var gen = doEval('%AsyncGenerator%'); | |
if (gen && getProto) { | |
value = getProto(gen.prototype); | |
} | |
} | |
INTRINSICS[name] = value; | |
return value; | |
}; | |
var LEGACY_ALIASES = { | |
__proto__: null, | |
'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'], | |
'%ArrayPrototype%': ['Array', 'prototype'], | |
'%ArrayProto_entries%': ['Array', 'prototype', 'entries'], | |
'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'], | |
'%ArrayProto_keys%': ['Array', 'prototype', 'keys'], | |
'%ArrayProto_values%': ['Array', 'prototype', 'values'], | |
'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'], | |
'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'], | |
'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'], | |
'%BooleanPrototype%': ['Boolean', 'prototype'], | |
'%DataViewPrototype%': ['DataView', 'prototype'], | |
'%DatePrototype%': ['Date', 'prototype'], | |
'%ErrorPrototype%': ['Error', 'prototype'], | |
'%EvalErrorPrototype%': ['EvalError', 'prototype'], | |
'%Float32ArrayPrototype%': ['Float32Array', 'prototype'], | |
'%Float64ArrayPrototype%': ['Float64Array', 'prototype'], | |
'%FunctionPrototype%': ['Function', 'prototype'], | |
'%Generator%': ['GeneratorFunction', 'prototype'], | |
'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'], | |
'%Int8ArrayPrototype%': ['Int8Array', 'prototype'], | |
'%Int16ArrayPrototype%': ['Int16Array', 'prototype'], | |
'%Int32ArrayPrototype%': ['Int32Array', 'prototype'], | |
'%JSONParse%': ['JSON', 'parse'], | |
'%JSONStringify%': ['JSON', 'stringify'], | |
'%MapPrototype%': ['Map', 'prototype'], | |
'%NumberPrototype%': ['Number', 'prototype'], | |
'%ObjectPrototype%': ['Object', 'prototype'], | |
'%ObjProto_toString%': ['Object', 'prototype', 'toString'], | |
'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'], | |
'%PromisePrototype%': ['Promise', 'prototype'], | |
'%PromiseProto_then%': ['Promise', 'prototype', 'then'], | |
'%Promise_all%': ['Promise', 'all'], | |
'%Promise_reject%': ['Promise', 'reject'], | |
'%Promise_resolve%': ['Promise', 'resolve'], | |
'%RangeErrorPrototype%': ['RangeError', 'prototype'], | |
'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'], | |
'%RegExpPrototype%': ['RegExp', 'prototype'], | |
'%SetPrototype%': ['Set', 'prototype'], | |
'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'], | |
'%StringPrototype%': ['String', 'prototype'], | |
'%SymbolPrototype%': ['Symbol', 'prototype'], | |
'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'], | |
'%TypedArrayPrototype%': ['TypedArray', 'prototype'], | |
'%TypeErrorPrototype%': ['TypeError', 'prototype'], | |
'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'], | |
'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'], | |
'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'], | |
'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'], | |
'%URIErrorPrototype%': ['URIError', 'prototype'], | |
'%WeakMapPrototype%': ['WeakMap', 'prototype'], | |
'%WeakSetPrototype%': ['WeakSet', 'prototype'] | |
}; | |
var bind = require('function-bind'); | |
var hasOwn = require('hasown'); | |
var $concat = bind.call(Function.call, Array.prototype.concat); | |
var $spliceApply = bind.call(Function.apply, Array.prototype.splice); | |
var $replace = bind.call(Function.call, String.prototype.replace); | |
var $strSlice = bind.call(Function.call, String.prototype.slice); | |
var $exec = bind.call(Function.call, RegExp.prototype.exec); | |
/* 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 first = $strSlice(string, 0, 1); | |
var last = $strSlice(string, -1); | |
if (first === '%' && last !== '%') { | |
throw new $SyntaxError('invalid intrinsic syntax, expected closing `%`'); | |
} else if (last === '%' && first !== '%') { | |
throw new $SyntaxError('invalid intrinsic syntax, expected opening `%`'); | |
} | |
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) { | |
var intrinsicName = name; | |
var alias; | |
if (hasOwn(LEGACY_ALIASES, intrinsicName)) { | |
alias = LEGACY_ALIASES[intrinsicName]; | |
intrinsicName = '%' + alias[0] + '%'; | |
} | |
if (hasOwn(INTRINSICS, intrinsicName)) { | |
var value = INTRINSICS[intrinsicName]; | |
if (value === needsEval) { | |
value = doEval(intrinsicName); | |
} | |
if (typeof value === 'undefined' && !allowMissing) { | |
throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!'); | |
} | |
return { | |
alias: alias, | |
name: intrinsicName, | |
value: value | |
}; | |
} | |
throw new $SyntaxError('intrinsic ' + name + ' does not exist!'); | |
}; | |
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 $TypeError('"allowMissing" argument must be a boolean'); | |
} | |
if ($exec(/^%?[^%]*%?$/, name) === null) { | |
throw new $SyntaxError('`%` may not be present anywhere but at the beginning and end of the intrinsic name'); | |
} | |
var parts = stringToPath(name); | |
var intrinsicBaseName = parts.length > 0 ? parts[0] : ''; | |
var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing); | |
var intrinsicRealName = intrinsic.name; | |
var value = intrinsic.value; | |
var skipFurtherCaching = false; | |
var alias = intrinsic.alias; | |
if (alias) { | |
intrinsicBaseName = alias[0]; | |
$spliceApply(parts, $concat([0, 1], alias)); | |
} | |
for (var i = 1, isOwn = true; i < parts.length; i += 1) { | |
var part = parts[i]; | |
var first = $strSlice(part, 0, 1); | |
var last = $strSlice(part, -1); | |
if ( | |
( | |
(first === '"' || first === "'" || first === '`') | |
|| (last === '"' || last === "'" || last === '`') | |
) | |
&& first !== last | |
) { | |
throw new $SyntaxError('property names with quotes must have matching quotes'); | |
} | |
if (part === 'constructor' || !isOwn) { | |
skipFurtherCaching = true; | |
} | |
intrinsicBaseName += '.' + part; | |
intrinsicRealName = '%' + intrinsicBaseName + '%'; | |
if (hasOwn(INTRINSICS, intrinsicRealName)) { | |
value = INTRINSICS[intrinsicRealName]; | |
} else if (value != null) { | |
if (!(part in value)) { | |
if (!allowMissing) { | |
throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.'); | |
} | |
return void undefined; | |
} | |
if ($gOPD && (i + 1) >= parts.length) { | |
var desc = $gOPD(value, part); | |
isOwn = !!desc; | |
// By convention, when a data property is converted to an accessor | |
// property to emulate a data property that does not suffer from | |
// the override mistake, that accessor's getter is marked with | |
// an `originalValue` property. Here, when we detect this, we | |
// uphold the illusion by pretending to see that original data | |
// property, i.e., returning the value rather than the getter | |
// itself. | |
if (isOwn && 'get' in desc && !('originalValue' in desc.get)) { | |
value = desc.get; | |
} else { | |
value = value[part]; | |
} | |
} else { | |
isOwn = hasOwn(value, part); | |
value = value[part]; | |
} | |
if (isOwn && !skipFurtherCaching) { | |
INTRINSICS[intrinsicRealName] = value; | |
} | |
} | |
} | |
return value; | |
}; | |