js/src/jit-test/tests/for-of/semantics-07.js@6474c204b198 (annotated)
js/src/jit-test/tests/for-of/semantics-07.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 | // Deleting the .next method of an iterator in the middle of a for-of loop |
| michael@0 | 2 | // causes a TypeError at the next iteration. |
| michael@0 | 3 | |
| michael@0 | 4 | load(libdir + "asserts.js"); |
| michael@0 | 5 | load(libdir + "iteration.js"); |
| michael@0 | 6 | |
| michael@0 | 7 | var iterProto = Object.getPrototypeOf([][std_iterator]()); |
| michael@0 | 8 | var s = ''; |
| michael@0 | 9 | assertThrowsInstanceOf(function () { |
| michael@0 | 10 | for (var v of ['duck', 'duck', 'duck', 'goose', 'FAIL']) { |
| michael@0 | 11 | s += v; |
| michael@0 | 12 | if (v === 'goose') |
| michael@0 | 13 | delete iterProto.next; |
| michael@0 | 14 | s += '.'; |
| michael@0 | 15 | } |
| michael@0 | 16 | }, TypeError); |
| michael@0 | 17 | assertEq(s, 'duck.duck.duck.goose.'); |
