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

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/jaeger/testSetElem-NewProto.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,24 @@
     1.4 +// vim: set ts=8 sts=4 et sw=4 tw=99:
     1.5 +
     1.6 +function f() {
     1.7 +    return [[], [], [], []];
     1.8 +}
     1.9 +
    1.10 +function setelem(obj, key, val) {
    1.11 +    obj[key] = val;
    1.12 +}
    1.13 +
    1.14 +// Generate IC
    1.15 +setelem([], 0, "hi");
    1.16 +setelem([], 0, "hi");
    1.17 +
    1.18 +var arrays = f();
    1.19 +
    1.20 +var evil = { };
    1.21 +Object.defineProperty(evil, "1", { set: function (v) { this.ham = v; } });
    1.22 +Array.prototype.__proto__ = evil;
    1.23 +
    1.24 +var k = arrays[0];
    1.25 +setelem(k, 1, "yam");
    1.26 +assertEq(k.ham, "yam");
    1.27 +

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