do-while-semicolon.js 2.12 KB
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// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1.  Redistributions of source code must retain the above copyright
//     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.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

description(
"This test checks that toString() round-trip on a function that has do..while in JavaScript does not insert extra semicolon."
);

function f1() {
    do {} while(0);
}

function f2() {
    do {} while(0)
}

function f3() {
    do {} while(0)   ;
}

function f4() {
    do {} while(0)  /*empty*/ ;
}



if (typeof uneval == "undefined")
    uneval = function(x) { return '(' + x.toString()+ ')'; }


uf1 = uneval(f1);
ueuf1 = uneval(eval(uneval(f1)));

uf2 = uneval(f2);
ueuf2 = uneval(eval(uneval(f2)));

uf3 = uneval(f3);
ueuf3 = uneval(eval(uneval(f3)));

uf4 = uneval(f4);
ueuf4 = uneval(eval(uneval(f4)));



shouldBe("ueuf1", "uf1");
shouldBe("ueuf2", "uf2");
shouldBe("ueuf3", "uf3");
shouldBe("ueuf4", "uf4");