The Tor Browser / file comparison
comparison: js/src/jit-test/tests/collections/Array-of-length-setter.js
js/src/jit-test/tests/collections/Array-of-length-setter.js
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| -1:000000000000 | 0:806ca30e7338 |
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| 1 // Array.of calls a "length" setter if one is present. | |
| 2 | |
| 3 var hits = 0; | |
| 4 var lastObj = null, lastVal = undefined; | |
| 5 function setter(v) { | |
| 6 hits++; | |
| 7 lastObj = this; | |
| 8 lastVal = v; | |
| 9 } | |
| 10 | |
| 11 // when the setter is on the new object | |
| 12 function Pack() { | |
| 13 Object.defineProperty(this, "length", {set: setter}); | |
| 14 } | |
| 15 Pack.of = Array.of; | |
| 16 var pack = Pack.of("wolves", "cards", "cigarettes", "lies"); | |
| 17 assertEq(lastObj, pack); | |
| 18 assertEq(lastVal, 4); | |
| 19 | |
| 20 // when the setter is on the new object's prototype | |
| 21 function Bevy() {} | |
| 22 Object.defineProperty(Bevy.prototype, "length", {set: setter}); | |
| 23 Bevy.of = Array.of; | |
| 24 var bevy = Bevy.of("quail"); | |
| 25 assertEq(lastObj, bevy); | |
| 26 assertEq(lastVal, 1); |
