src/v8/test/webkit/dfg-ensure-array-storage-on-window.js

// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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description(
"Tests that passing the global object to an array access that will arrayify to ArrayWithArrayStorage doesn't break things."
);

function foo(array) {
    var result = 0;
    for (var i = 0; i < array.length; ++i)
        result += array[i];
    return result;
}

var array = [1, 2, 3];
for (var i = 0; i < 200; ++i)
    shouldBe("foo(array)", "6");

array = [1, , 3];
array.__defineGetter__(1, function() { return 6; });
for (var i = 0; i < 1000; ++i)
    shouldBe("foo(array)", "10");

var w = this;
w[0] = 1;
w.length = 1;
shouldBe("foo(w)", "1");