js/src/jit-test/tests/proxy/testDirectProxyValidateProperty4.js@6474c204b198
js/src/jit-test/tests/proxy/testDirectProxyValidateProperty4.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
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 both the current descriptor and the descriptor returned
5 * by the trap are data descriptors, the current descriptor is non-configurable
6 * and non-writable, and the descriptor returned by the trap is writable.
7 */
8 var target = {};
9 Object.defineProperty(target, 'foo', {
10 value: 'bar',
11 writable: false,
12 configurable: false
13 });
14 assertThrowsInstanceOf(function () {
15 Object.getOwnPropertyDescriptor(new Proxy(target, {
16 getOwnPropertyDescriptor: function (target, name) {
17 return {
18 value: 'bar',
19 writable: true,
20 configurable: false
21 };
22 }
23 }), 'foo');
24 }, TypeError);
