js/src/jit-test/tests/jaeger/testSetElem-Indexed.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 // vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0 2
michael@0 3 function f() {
michael@0 4 return [[], [], [], []];
michael@0 5 }
michael@0 6
michael@0 7 function setelem(obj, key, val) {
michael@0 8 obj[key] = val;
michael@0 9 }
michael@0 10
michael@0 11 // Generate IC
michael@0 12 setelem([], 0, "hi");
michael@0 13 setelem([], 0, "hi");
michael@0 14
michael@0 15 // Get some arrays pre-indexing.
michael@0 16 var arrays = f();
michael@0 17
michael@0 18 // Do bad stuff.
michael@0 19 Object.defineProperty(Object.prototype, "1", { set: function (v) { this.kettle = v; } });
michael@0 20
michael@0 21 var k = arrays[0];
michael@0 22 setelem(k, 1, 13);
michael@0 23 assertEq(k.kettle, 13);
michael@0 24 assertEq(k.hasOwnProperty("1"), false);
michael@0 25
michael@0 26 Object.defineProperty(Array.prototype, "2", { set: function (v) { this.pot = v; } });
michael@0 27 k = arrays[1];
michael@0 28 setelem(k, 2, "yam");
michael@0 29 assertEq(k.pot, "yam");
michael@0 30
michael@0 31 gc();
michael@0 32
michael@0 33 // make sure this reset okay.
michael@0 34 setelem([], 0, "hi");
michael@0 35 setelem([], 0, "hi");
michael@0 36

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