js/src/jit-test/tests/basic/testMethodWriteBarrier2.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 function C() {
michael@0 2 this.m = function () {}; // JSOP_SETMETHOD
michael@0 3 }
michael@0 4
michael@0 5 var a = [new C, new C, new C, new C, new C, new C, new C, new C, new C];
michael@0 6 var b = [new C, new C, new C, new C, new C, new C, a[8], new C, new C];
michael@0 7
michael@0 8 var thrown = 'none';
michael@0 9 try {
michael@0 10 for (var i = 0; i < 9; i++) {
michael@0 11 a[i].m();
michael@0 12 b[i].m = 0.7; // MethodWriteBarrier required here
michael@0 13 }
michael@0 14 } catch (exc) {
michael@0 15 thrown = exc.name;
michael@0 16 }
michael@0 17 assertEq(thrown, 'TypeError');

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