41 lines
1.5 KiB
JavaScript
41 lines
1.5 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var callBound = require('call-bind/callBound');
|
||
|
|
|
||
|
|
var DefinePropertyOrThrow = require('./DefinePropertyOrThrow');
|
||
|
|
var FromPropertyDescriptor = require('./FromPropertyDescriptor');
|
||
|
|
var Get = require('./Get');
|
||
|
|
var ToObject = require('./ToObject');
|
||
|
|
var ToPropertyDescriptor = require('./ToPropertyDescriptor');
|
||
|
|
|
||
|
|
var forEach = require('../helpers/forEach');
|
||
|
|
var getOwnPropertyDescriptor = require('../helpers/getOwnPropertyDescriptor');
|
||
|
|
var OwnPropertyKeys = require('../helpers/OwnPropertyKeys');
|
||
|
|
|
||
|
|
var $push = callBound('Array.prototype.push');
|
||
|
|
|
||
|
|
// https://262.ecma-international.org/6.0/#sec-objectdefineproperties
|
||
|
|
module.exports = function ObjectDefineProperties(O, Properties) {
|
||
|
|
var props = ToObject(Properties); // step 1
|
||
|
|
var keys = OwnPropertyKeys(props); // step 2
|
||
|
|
var descriptors = []; // step 3
|
||
|
|
|
||
|
|
forEach(keys, function (nextKey) { // step 4
|
||
|
|
var propDesc = ToPropertyDescriptor(getOwnPropertyDescriptor(props, nextKey)); // step 4.a
|
||
|
|
if (typeof propDesc !== 'undefined' && propDesc['[[Enumerable]]']) { // step 4.b
|
||
|
|
var descObj = Get(props, nextKey); // step 4.b.i
|
||
|
|
var desc = ToPropertyDescriptor(descObj); // step 4.b.ii
|
||
|
|
$push(descriptors, [nextKey, desc]); // step 4.b.iii
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
forEach(descriptors, function (pair) { // step 5
|
||
|
|
var P = pair[0]; // step 5.a
|
||
|
|
var desc = pair[1]; // step 5.b
|
||
|
|
desc = FromPropertyDescriptor(desc); // TODO: remove this once DefinePropertyOrThrow is fixed
|
||
|
|
DefinePropertyOrThrow(O, P, desc); // step 5.c
|
||
|
|
});
|
||
|
|
|
||
|
|
return O; // step 6
|
||
|
|
};
|