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comparison: js/src/jit-test/tests/for-of/semantics-07.js
js/src/jit-test/tests/for-of/semantics-07.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:a4176882c0e9 |
|---|---|
| 1 // Deleting the .next method of an iterator in the middle of a for-of loop | |
| 2 // causes a TypeError at the next iteration. | |
| 3 | |
| 4 load(libdir + "asserts.js"); | |
| 5 load(libdir + "iteration.js"); | |
| 6 | |
| 7 var iterProto = Object.getPrototypeOf([][std_iterator]()); | |
| 8 var s = ''; | |
| 9 assertThrowsInstanceOf(function () { | |
| 10 for (var v of ['duck', 'duck', 'duck', 'goose', 'FAIL']) { | |
| 11 s += v; | |
| 12 if (v === 'goose') | |
| 13 delete iterProto.next; | |
| 14 s += '.'; | |
| 15 } | |
| 16 }, TypeError); | |
| 17 assertEq(s, 'duck.duck.duck.goose.'); |
