js/src/jit-test/tests/basic/testMethodWriteBarrier3.js@6474c204b198 (annotated)
js/src/jit-test/tests/basic/testMethodWriteBarrier3.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 g() {} |
| michael@0 | 2 | |
| michael@0 | 3 | function h() { |
| michael@0 | 4 | for (var i = 0; i < 9; i++) |
| michael@0 | 5 | x.f = i; |
| michael@0 | 6 | } |
| michael@0 | 7 | |
| michael@0 | 8 | function j() { |
| michael@0 | 9 | x.f(); |
| michael@0 | 10 | } |
| michael@0 | 11 | |
| michael@0 | 12 | var x = {f: 0.7, g: g}; |
| michael@0 | 13 | x.g(); // interpreter brands x |
| michael@0 | 14 | h(); |
| michael@0 | 15 | print(shapeOf(x)); |
| michael@0 | 16 | x.f = function (){}; // does not change x's shape |
| michael@0 | 17 | j(); |
| michael@0 | 18 | print(shapeOf(x)); |
| michael@0 | 19 | h(); // should change x's shape |
| michael@0 | 20 | |
| michael@0 | 21 | var thrown = 'none'; |
| michael@0 | 22 | try { |
| michael@0 | 23 | j(); // should throw since x.f === 8 |
| michael@0 | 24 | } catch (exc) { |
| michael@0 | 25 | thrown = exc.name; |
| michael@0 | 26 | } |
| michael@0 | 27 | assertEq(thrown, 'TypeError'); |
