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comparison: js/src/jit-test/tests/basic/testBug501690.js
js/src/jit-test/tests/basic/testBug501690.js
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| -1:000000000000 | 0:cd25ada7e855 |
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| 1 function testBug501690() { | |
| 2 // Property cache assertion when 3 objects along a prototype chain have the same shape. | |
| 3 function B(){} | |
| 4 B.prototype = {x: 123}; | |
| 5 | |
| 6 function D(){} | |
| 7 D.prototype = new B; | |
| 8 D.prototype.x = 1; // [1] shapeOf(B.prototype) == shapeOf(D.prototype) | |
| 9 | |
| 10 arr = [new D, new D, new D, D.prototype]; // [2] all the same shape | |
| 11 for (var i = 0; i < 4; i++) | |
| 12 assertEq(arr[i].x, 1); // same kshape [2], same vshape [1] | |
| 13 } | |
| 14 testBug501690(); |
