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comparison: js/src/jit-test/tests/arrays/slice.js
js/src/jit-test/tests/arrays/slice.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:36c1118443b2 |
|---|---|
| 1 let invoked = false; | |
| 2 Object.defineProperty(Array.prototype, '0', {set: function () { | |
| 3 invoked = true; | |
| 4 }}); | |
| 5 | |
| 6 let result = [1, 2, 3].slice(1); | |
| 7 assertEq(invoked, false); | |
| 8 | |
| 9 let proxy = new Proxy({}, { | |
| 10 get: function (target, name, proxy) { | |
| 11 switch (name) { | |
| 12 case "length": | |
| 13 return 2; | |
| 14 case "0": | |
| 15 return 15; | |
| 16 case "1": | |
| 17 // Should not invoke [[Get]] for this hole. | |
| 18 default: | |
| 19 assertEq(false, true); | |
| 20 } | |
| 21 }, | |
| 22 has: function (target, name) { | |
| 23 switch (name) { | |
| 24 case "0": | |
| 25 return true; | |
| 26 case "1": | |
| 27 return false; | |
| 28 default: | |
| 29 assertEq(false, true); | |
| 30 } | |
| 31 } | |
| 32 }) | |
| 33 result = Array.prototype.slice.call(proxy, 0); | |
| 34 assertEq(result.length, 2); | |
| 35 assertEq(0 in result, true); | |
| 36 assertEq(1 in result, false); | |
| 37 assertEq(result[0], 15); |
