63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var $TypeError = require('es-errors/type');
|
||
|
|
|
||
|
|
var callBound = require('call-bind/callBound');
|
||
|
|
var forEach = require('../helpers/forEach');
|
||
|
|
var every = require('../helpers/every');
|
||
|
|
var OwnPropertyKeys = require('../helpers/OwnPropertyKeys');
|
||
|
|
|
||
|
|
var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable');
|
||
|
|
|
||
|
|
var CreateDataPropertyOrThrow = require('./CreateDataPropertyOrThrow');
|
||
|
|
var Get = require('./Get');
|
||
|
|
var IsArray = require('./IsArray');
|
||
|
|
var IsInteger = require('./IsInteger');
|
||
|
|
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/11.0/#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 sourceKeys = OwnPropertyKeys(from);
|
||
|
|
forEach(sourceKeys, function (nextKey) {
|
||
|
|
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
|
||
|
|
&& IsInteger(ToNumber(nextKey))
|
||
|
|
);
|
||
|
|
if (excluded === false && enumerable) {
|
||
|
|
var propValue = Get(from, nextKey);
|
||
|
|
CreateDataPropertyOrThrow(target, nextKey, propValue);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return target;
|
||
|
|
};
|