js/src/jit-test/tests/basic/splice-delete-non-configurable-during-shrink.js@6474c204b198 (annotated)
js/src/jit-test/tests/basic/splice-delete-non-configurable-during-shrink.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 | /* Test that splice causing deletion of a non-configurable property stops at exactly step 12(v) of ES5 15.4.4.12 */ |
| michael@0 | 2 | |
| michael@0 | 3 | var O = [1,2,3,4,5,6]; |
| michael@0 | 4 | var A = undefined; |
| michael@0 | 5 | Object.defineProperty(O, 3, { configurable: false }); |
| michael@0 | 6 | |
| michael@0 | 7 | try |
| michael@0 | 8 | { |
| michael@0 | 9 | A = O.splice(0, 6); |
| michael@0 | 10 | throw new Error("didn't throw, returned " + A); |
| michael@0 | 11 | } |
| michael@0 | 12 | catch (e) |
| michael@0 | 13 | { |
| michael@0 | 14 | assertEq(e instanceof TypeError, true, |
| michael@0 | 15 | "deleting O[3] should have caused a TypeError"); |
| michael@0 | 16 | } |
| michael@0 | 17 | |
| michael@0 | 18 | assertEq(O.length, 6); // setting length not reached |
| michael@0 | 19 | assertEq(A, undefined); // return value not reached |
| michael@0 | 20 | |
| michael@0 | 21 | assertEq(O[5], undefined); // deletion reached |
| michael@0 | 22 | assertEq(O[4], undefined); // deletion reached |
| michael@0 | 23 | assertEq(O[3], 4); // deletion caused exception |
| michael@0 | 24 | assertEq(O[2], 3); // deletion not reached |
| michael@0 | 25 | assertEq(O[1], 2); // deletion not reached |
| michael@0 | 26 | assertEq(O[0], 1); // deletion not reached |
