js/src/jit-test/tests/parser/bug-888002-3.js@6474c204b198 (annotated)
js/src/jit-test/tests/parser/bug-888002-3.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 | // Constant folding doesn't affect strict delete either. |
| michael@0 | 2 | // In particular, it doesn't affect whether |delete x| is a strict error. |
| michael@0 | 3 | |
| michael@0 | 4 | load(libdir + "asserts.js"); |
| michael@0 | 5 | |
| michael@0 | 6 | (function (x) { |
| michael@0 | 7 | "use strict"; |
| michael@0 | 8 | |
| michael@0 | 9 | // These senseless delete-expressions are legal even in strict mode. |
| michael@0 | 10 | // Per ES5.1 11.4.1 step 2, each one does nothing and returns true. |
| michael@0 | 11 | assertEq(delete (1 ? x : x), true); |
| michael@0 | 12 | assertEq(delete (0 || x), true); |
| michael@0 | 13 | assertEq(delete (1 && x), true); |
| michael@0 | 14 | |
| michael@0 | 15 | // Plain `delete x` is a SyntaxError though. |
| michael@0 | 16 | assertThrowsInstanceOf(() => eval('delete x'), SyntaxError); |
| michael@0 | 17 | assertThrowsInstanceOf(() => Function('"use strict"; delete x'), SyntaxError); |
| michael@0 | 18 | }()); |
