js/src/jit-test/tests/jaeger/propertyOptimize-4.js@6474c204b198
js/src/jit-test/tests/jaeger/propertyOptimize-4.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 // Make sure new script properties can be invalidated on specialized prototype
2 // types while they are still being constructed.
4 function Foo(a, b, c) {
5 this.x = a + b;
6 this.y = c;
7 }
9 updated = false;
10 var o = {valueOf: function() {
11 Object.defineProperty(Object.prototype, 'y', {set:function() { updated = true; }})
12 }};
14 function Bar() {}
15 Bar.prototype = new Foo(o, 1, 2);
16 assertEq(updated, true);
17 assertEq(Bar.prototype.y, undefined);
