testArrayInWithIndexedProto.js

Enable keyboard shortcuts

function testArrayInWithIndexedProto()

    Array.prototype[0] = "Got me";

    var zeroPresent, zeroPresent2;

    // Need to go to 18 because in the failure mode this is

    // testing we have various side-exits in there due to interp and

    // tracer not agreeing that confuse the issue and cause us to not

    // hit the bad case within 9 iterations.

    for (var j = 0; j < 18; ++j) {

	zeroPresent = 0 in [];

    var arr = [1, 2];

    delete arr[0];

    for (var j = 0; j < 18; ++j) {

	zeroPresent2 = 0 in arr;

    return [zeroPresent, zeroPresent2];

var [ret, ret2] = testArrayInWithIndexedProto();

assertEq(ret, true);

assertEq(ret2, true);