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'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;
};
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