js/src/jit-test/tests/for-of/semantics-03.js@6474c204b198 (annotated)
js/src/jit-test/tests/for-of/semantics-03.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 | // Replacing Array.prototype.iterator with a generator affects for-of behavior. |
| michael@0 | 2 | |
| michael@0 | 3 | load(libdir + "iteration.js"); |
| michael@0 | 4 | |
| michael@0 | 5 | Array.prototype[std_iterator] = function* () { |
| michael@0 | 6 | for (var i = this.length; --i >= 0; ) |
| michael@0 | 7 | yield this[i]; |
| michael@0 | 8 | }; |
| michael@0 | 9 | |
| michael@0 | 10 | var s = ''; |
| michael@0 | 11 | for (var v of ['a', 'b', 'c', 'd']) |
| michael@0 | 12 | s += v; |
| michael@0 | 13 | assertEq(s, 'dcba'); |
