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codeql-action/node_modules/es-abstract/2021/CopyDataProperties.js
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'use strict'; | |
var GetIntrinsic = require('get-intrinsic'); | |
var $TypeError = GetIntrinsic('%TypeError%'); | |
var callBound = require('call-bind/callBound'); | |
var forEach = require('../helpers/forEach'); | |
var every = require('../helpers/every'); | |
var some = require('../helpers/some'); | |
var OwnPropertyKeys = require('../helpers/OwnPropertyKeys'); | |
var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable'); | |
var CreateDataPropertyOrThrow = require('./CreateDataPropertyOrThrow'); | |
var Get = require('./Get'); | |
var IsArray = require('./IsArray'); | |
var IsIntegralNumber = require('./IsIntegralNumber'); | |
var IsPropertyKey = require('./IsPropertyKey'); | |
var SameValue = require('./SameValue'); | |
var ToNumber = require('./ToNumber'); | |
var ToObject = require('./ToObject'); | |
var Type = require('./Type'); | |
// https://262.ecma-international.org/12.0/#sec-copydataproperties | |
module.exports = function CopyDataProperties(target, source, excludedItems) { | |
if (Type(target) !== 'Object') { | |
throw new $TypeError('Assertion failed: "target" must be an Object'); | |
} | |
if (!IsArray(excludedItems) || !every(excludedItems, IsPropertyKey)) { | |
throw new $TypeError('Assertion failed: "excludedItems" must be a List of Property Keys'); | |
} | |
if (typeof source === 'undefined' || source === null) { | |
return target; | |
} | |
var from = ToObject(source); | |
var keys = OwnPropertyKeys(from); | |
forEach(keys, function (nextKey) { | |
var excluded = some(excludedItems, function (e) { | |
return SameValue(e, nextKey) === true; | |
}); | |
/* | |
var excluded = false; | |
forEach(excludedItems, function (e) { | |
if (SameValue(e, nextKey) === true) { | |
excluded = true; | |
} | |
}); | |
*/ | |
var enumerable = $isEnumerable(from, nextKey) || ( | |
// this is to handle string keys being non-enumerable in older engines | |
typeof source === 'string' | |
&& nextKey >= 0 | |
&& IsIntegralNumber(ToNumber(nextKey)) | |
); | |
if (excluded === false && enumerable) { | |
var propValue = Get(from, nextKey); | |
CreateDataPropertyOrThrow(target, nextKey, propValue); | |
} | |
}); | |
return target; | |
}; |