Wed, 31 Dec 2014 06:09:35 +0100
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 load(libdir + "asserts.js");
3 /*
4 * Throw a TypeError if the current descriptor is non-configurable and the trap
5 * returns a configurable descriptor
6 */
7 var target = {};
8 Object.defineProperty(target, 'foo', {
9 configurable: false
10 });
11 assertThrowsInstanceOf(function () {
12 Object.getOwnPropertyDescriptor(Proxy(target, {
13 getOwnPropertyDescriptor: function (target, name) {
14 return {
15 configurable: true
16 };
17 }
18 }), 'foo');
19 }, TypeError);