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- 'use strict';
- var undefined;
- var $SyntaxError = SyntaxError;
- var $Function = Function;
- var $TypeError = TypeError;
- // 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 getProto = Object.getPrototypeOf || function (x) { return x.__proto__; }; // eslint-disable-line no-proto
- var needsEval = {};
- var TypedArray = typeof Uint8Array === 'undefined' ? undefined : getProto(Uint8Array);
- var INTRINSICS = {
- '%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,
- '%Array%': Array,
- '%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,
- '%ArrayIteratorPrototype%': hasSymbols ? 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([][Symbol.iterator]())) : undefined,
- '%JSON%': typeof JSON === 'object' ? JSON : undefined,
- '%Map%': typeof Map === 'undefined' ? undefined : Map,
- '%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols ? 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 ? undefined : getProto(new Set()[Symbol.iterator]()),
- '%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,
- '%String%': String,
- '%StringIteratorPrototype%': hasSymbols ? 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
- };
- 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) {
- value = getProto(gen.prototype);
- }
- }
- INTRINSICS[name] = value;
- return value;
- };
- var LEGACY_ALIASES = {
- '%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('has');
- 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;
- };
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