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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
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
description(
"This test checks that toString() round-trip on a function that has a array with elision does not remove a comma."
);
function f1() {
return [,];
}
function f2() {
return [1];
}
function f3() {
return [1,];
}
// this is the first testcase that proves that trailing
// elision comma is not removed
function f4() {
return [1,,];
}
function f5() {
return [1,,,];
}
function f6() {
return [1,,,4];
}
function f7() {
return [,2,];
}
function f8() {
return [,2,,];
}
function f9() {
return [,2,,,5];
}
function f10() {
return [,,3,,,];
}
function f11() {
return [,,3,,,6];
}
function f12() {
return [,undefined];
}
function f13() {
return [,undefined,];
}
function f14() {
return [,undefined,,];
}
function f15() {
return [,,];
}
function f16() {
return [,,,];
}
shouldBe("typeof undefined", "'undefined'");
unevalf = function(x) { return '(' + x.toString() + ')'; };
function testToStringAndLength(fn, length, lastElement)
{
// check that array length is correct
shouldBe(""+ fn +"().length", "" + length);
// check that last element is what it is supposed to be
shouldBe(""+ fn +"()[" + length +"-1]", "" + lastElement);
// check that toString result evaluates to code that can be evaluated
// and that toString doesn't remove the trailing elision comma.
shouldBe("unevalf(eval(unevalf("+fn+")))", "unevalf(" + fn + ")");
// check that toString()ed functions should retain semantics
shouldBe("eval(unevalf("+fn+"))().length", ""+length);
shouldBe("eval(unevalf("+fn+"))()[" + length +"-1]", ""+lastElement);
}
testToStringAndLength("f1", 1);
testToStringAndLength("f2", 1, 1);
testToStringAndLength("f3", 1,1);
testToStringAndLength("f4", 2);
testToStringAndLength("f5", 3);
testToStringAndLength("f6", 4, 4);
testToStringAndLength("f7", 2, 2);
testToStringAndLength("f8", 3);
testToStringAndLength("f9", 5, 5);
testToStringAndLength("f10", 5);
testToStringAndLength("f11", 6, 6);
testToStringAndLength("f12", 2);
testToStringAndLength("f13", 2);
testToStringAndLength("f14", 3);
testToStringAndLength("f15", 2);
testToStringAndLength("f16", 3);
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