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codeql-action/node_modules/es-abstract/2020/CreateListFromArrayLike.js
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'use strict'; | |
var GetIntrinsic = require('get-intrinsic'); | |
var callBound = require('call-bind/callBound'); | |
var $TypeError = GetIntrinsic('%TypeError%'); | |
var $indexOf = callBound('Array.prototype.indexOf', true) || callBound('String.prototype.indexOf'); | |
var $push = callBound('Array.prototype.push'); | |
var Get = require('./Get'); | |
var IsArray = require('./IsArray'); | |
var LengthOfArrayLike = require('./LengthOfArrayLike'); | |
var ToString = require('./ToString'); | |
var Type = require('./Type'); | |
var defaultElementTypes = ['Undefined', 'Null', 'Boolean', 'String', 'Symbol', 'Number', 'BigInt', 'Object']; | |
// https://262.ecma-international.org/11.0/#sec-createlistfromarraylike | |
module.exports = function CreateListFromArrayLike(obj) { | |
var elementTypes = arguments.length > 1 | |
? arguments[1] | |
: defaultElementTypes; | |
if (Type(obj) !== 'Object') { | |
throw new $TypeError('Assertion failed: `obj` must be an Object'); | |
} | |
if (!IsArray(elementTypes)) { | |
throw new $TypeError('Assertion failed: `elementTypes`, if provided, must be an array'); | |
} | |
var len = LengthOfArrayLike(obj); | |
var list = []; | |
var index = 0; | |
while (index < len) { | |
var indexName = ToString(index); | |
var next = Get(obj, indexName); | |
var nextType = Type(next); | |
if ($indexOf(elementTypes, nextType) < 0) { | |
throw new $TypeError('item type ' + nextType + ' is not a valid elementType'); | |
} | |
$push(list, next); | |
index += 1; | |
} | |
return list; | |
}; |