js/src/jit-test/tests/jaeger/propertyOptimize-4.js@b8a032363ba2 (annotated)
js/src/jit-test/tests/jaeger/propertyOptimize-4.js
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | // Make sure new script properties can be invalidated on specialized prototype |
| michael@0 | 2 | // types while they are still being constructed. |
| michael@0 | 3 | |
| michael@0 | 4 | function Foo(a, b, c) { |
| michael@0 | 5 | this.x = a + b; |
| michael@0 | 6 | this.y = c; |
| michael@0 | 7 | } |
| michael@0 | 8 | |
| michael@0 | 9 | updated = false; |
| michael@0 | 10 | var o = {valueOf: function() { |
| michael@0 | 11 | Object.defineProperty(Object.prototype, 'y', {set:function() { updated = true; }}) |
| michael@0 | 12 | }}; |
| michael@0 | 13 | |
| michael@0 | 14 | function Bar() {} |
| michael@0 | 15 | Bar.prototype = new Foo(o, 1, 2); |
| michael@0 | 16 | assertEq(updated, true); |
| michael@0 | 17 | assertEq(Bar.prototype.y, undefined); |
