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Issue 29350382: Issue 4353 - Remove deprecated __proto__ syntax (Closed)
Patch Set: Export extend function too, use Object.keys Created Sept. 2, 2016, 3:05 p.m.
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1 /*
2 * This file is part of Adblock Plus <https://adblockplus.org/>,
3 * Copyright (C) 2006-2016 Eyeo GmbH
4 *
5 * Adblock Plus is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 3 as
7 * published by the Free Software Foundation.
8 *
9 * Adblock Plus is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 function desc(properties)
19 {
20 let descriptor = {};
21 let keys = Object.keys(properties);
22
23 for (let key of keys)
24 descriptor[key] = Object.getOwnPropertyDescriptor(properties, key);
25
26 return descriptor;
27 }
28 exports.desc = desc;
29
30 function extend(cls, properties)
31 {
32 return Object.create(cls.prototype, desc(properties));
33 }
34 exports.extend = extend;
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