js/src/jit-test/tests/debug/Object-preventExtensions-01.js@6474c204b198 (annotated)
js/src/jit-test/tests/debug/Object-preventExtensions-01.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 | // Basic preventExtensions test. |
| michael@0 | 2 | |
| michael@0 | 3 | var g = newGlobal(); |
| michael@0 | 4 | var obj = g.eval("({x: 1})"); |
| michael@0 | 5 | assertEq(g.Object.isExtensible(obj), true); |
| michael@0 | 6 | |
| michael@0 | 7 | var dbg = new Debugger; |
| michael@0 | 8 | var gw = dbg.addDebuggee(g); |
| michael@0 | 9 | var objw = gw.makeDebuggeeValue(obj); |
| michael@0 | 10 | assertEq(objw.isExtensible(), true); |
| michael@0 | 11 | |
| michael@0 | 12 | assertEq(objw.preventExtensions(), undefined); |
| michael@0 | 13 | assertEq(g.Object.isExtensible(obj), false); |
| michael@0 | 14 | assertEq(objw.isExtensible(), false); |
| michael@0 | 15 | |
| michael@0 | 16 | // Calling preventExtensions again has no effect. |
| michael@0 | 17 | assertEq(objw.preventExtensions(), undefined); |
