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comparison: js/src/jit-test/tests/for-of/array-holes-slow.js
js/src/jit-test/tests/for-of/array-holes-slow.js
- changeset 2
- 7e26c7da4463
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| -1:000000000000 | 0:9dce7aa06e5e |
|---|---|
| 1 // for-of on a slow Array consults the prototype chain when it encounters a hole. | |
| 2 | |
| 3 var a = [0, , , 3]; | |
| 4 a.slow = true; | |
| 5 Object.prototype[1] = 'peek1'; | |
| 6 Array.prototype[2] = 'peek2'; | |
| 7 | |
| 8 var log = []; | |
| 9 for (var x of a) | |
| 10 log.push(x); | |
| 11 assertEq(log[1], 'peek1'); | |
| 12 assertEq(log[2], 'peek2'); | |
| 13 assertEq(log.join(), "0,peek1,peek2,3"); |
