You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
2.0 KiB
70 lines
2.0 KiB
'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://www.ecma-international.org/ecma-262/12.0/#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; |
|
};
|
|
|