js/src/jit-test/tests/proxy/testDirectProxyValidateProperty4.js@6474c204b198 (annotated)
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.
| michael@0 | 1 | load(libdir + "asserts.js"); |
| michael@0 | 2 | |
| michael@0 | 3 | /* |
| michael@0 | 4 | * Throw a TypeError if both the current descriptor and the descriptor returned |
| michael@0 | 5 | * by the trap are data descriptors, the current descriptor is non-configurable |
| michael@0 | 6 | * and non-writable, and the descriptor returned by the trap is writable. |
| michael@0 | 7 | */ |
| michael@0 | 8 | var target = {}; |
| michael@0 | 9 | Object.defineProperty(target, 'foo', { |
| michael@0 | 10 | value: 'bar', |
| michael@0 | 11 | writable: false, |
| michael@0 | 12 | configurable: false |
| michael@0 | 13 | }); |
| michael@0 | 14 | assertThrowsInstanceOf(function () { |
| michael@0 | 15 | Object.getOwnPropertyDescriptor(new Proxy(target, { |
| michael@0 | 16 | getOwnPropertyDescriptor: function (target, name) { |
| michael@0 | 17 | return { |
| michael@0 | 18 | value: 'bar', |
| michael@0 | 19 | writable: true, |
| michael@0 | 20 | configurable: false |
| michael@0 | 21 | }; |
| michael@0 | 22 | } |
| michael@0 | 23 | }), 'foo'); |
| michael@0 | 24 | }, TypeError); |
