v8/test/webkit/constant-count.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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//     notice, this list of conditions and the following disclaimer.
// 2.  Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
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// Flags: --legacy-const

description(
"This test checks exceptional cases for constant counting in the parser."
);

const a;
const b;
--a;
--b;

shouldBe("a", "undefined");

function f()
{
    const a;
    const b;
    --a;
    --b;

    return a;
}

shouldBe("f()", "undefined");