test/webkit/dfg-arguments-out-of-bounds.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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// modification, are permitted provided that the following conditions
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description(
"Tests accessing arguments with an out-of-bounds index when the arguments have not been created but might be."
);

var p = false;

function foo() {
    function bar() { }
    if (p)
        return arguments;
    return arguments[0];
}

var args = [42];
var expected = "\"42\"";
for (var i = 0; i < 3000; ++i) {
    if (i == 1000) {
        p = true;
        expected = "\"[object Arguments]\"";
    }
    if (i == 2000) {
        args = [];
        p = false;
        expected = "\"undefined\"";
    }
    result = "" +foo.apply(void 0, args);
    shouldBe("result", expected);
}