js/src/jit-test/tests/basic/testSetProtoRegeneratesObjectShape.js@6474c204b198 (annotated)
js/src/jit-test/tests/basic/testSetProtoRegeneratesObjectShape.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 | function testSetProtoRegeneratesObjectShape() |
| michael@0 | 2 | { |
| michael@0 | 3 | var f = function() {}; |
| michael@0 | 4 | var g = function() {}; |
| michael@0 | 5 | g.prototype.__proto__ = {}; |
| michael@0 | 6 | |
| michael@0 | 7 | function iq(obj) |
| michael@0 | 8 | { |
| michael@0 | 9 | for (var i = 0; i < 10; ++i) |
| michael@0 | 10 | "" + obj.prototype; |
| michael@0 | 11 | } |
| michael@0 | 12 | |
| michael@0 | 13 | iq(f); |
| michael@0 | 14 | iq(f); |
| michael@0 | 15 | iq(f); |
| michael@0 | 16 | iq(f); |
| michael@0 | 17 | iq(g); |
| michael@0 | 18 | |
| michael@0 | 19 | if (shapeOf(f.prototype) === shapeOf(g.prototype)) |
| michael@0 | 20 | return "object shapes same after proto of one is changed"; |
| michael@0 | 21 | |
| michael@0 | 22 | return true; |
| michael@0 | 23 | } |
| michael@0 | 24 | assertEq(testSetProtoRegeneratesObjectShape(), true); |
