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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 prefix, postfix and typeof operators applied to group expression will not remove the grouping. Also checks that evaluation of such a expression produces run-time exception"
);
/* These have become obsolete, since they are not syntactically well-formed ES5+.
function postfix_should_preserve_parens(x, y, z) {
(x, y)++;
return y;
}
function prefix_should_preserve_parens(x, y, z) {
++(x, y);
return x;
}
function both_should_preserve_parens(x, y, z) {
++(x, y)--;
return x;
}
function postfix_should_preserve_parens_multi(x, y, z) {
(((x, y)))--;
return x;
}
function prefix_should_preserve_parens_multi(x, y, z) {
--(((x, y)));
return x;
}
function both_should_preserve_parens_multi(x, y, z) {
++(((x, y)))--;
return x;
}
function postfix_should_preserve_parens_multi1(x, y, z) {
(((x)), y)--;
return x;
}
function prefix_should_preserve_parens_multi1(x, y, z) {
--(((x)), y);
return x;
}
function prefix_should_preserve_parens_multi2(x, y, z) {
var z = 0;
--(((x), y), z);
return x;
}
function postfix_should_preserve_parens_multi2(x, y, z) {
var z = 0;
(((x), y) ,z)++;
return x;
}
*/
// if these return a variable (such as y) instead of
// the result of typeof, this means that the parenthesis
// got lost somewhere.
function typeof_should_preserve_parens(x, y, z) {
return typeof (x, y);
}
function typeof_should_preserve_parens1(x, y, z) {
return typeof ((x, y));
}
function typeof_should_preserve_parens2(x, y, z) {
var z = 33;
return typeof (z, (x, y));
}
function typeof_should_preserve_parens_multi(x, y, z) {
var z = 33;
return typeof ((z,(((x, y)))));
}
unevalf = function(x) { return '(' + x.toString() + ')'; };
function testToString(fn) {
// check that toString result evaluates to code that can be evaluated
// this doesn't actually reveal the bug that this test is testing
shouldBe("unevalf(eval(unevalf("+fn+")))", "unevalf(" + fn + ")");
// check that grouping operator is still there (this test reveals the bug
// but will create possible false negative if toString output changes in
// the future)
shouldBeTrue("/.*\\(+x\\)*, y\\)/.test(unevalf("+fn+"))");
}
function testToStringAndRTFailure(fn)
{
testToString(fn);
// check that function call produces run-time exception
shouldThrow(""+fn+ "(1, 2, 3);");
// check that function call produces run-time exception after eval(unevalf)
shouldThrow("eval(unevalf("+fn+ "))(1, 2, 3);");
}
function testToStringAndReturn(fn, p1, p2, retval)
{
testToString(fn);
// check that function call produces correct result
shouldBe("" + fn + "(" + p1 + ", " + p2 +");", retval);
// check that function call produces correct result after eval(unevalf)
shouldBe("eval(unevalf("+fn+ "))" + "(" + p1 + ", " + p2 +");", retval);
}
/*
testToStringAndRTFailure("prefix_should_preserve_parens");
testToStringAndRTFailure("postfix_should_preserve_parens");
testToStringAndRTFailure("both_should_preserve_parens");
testToStringAndRTFailure("prefix_should_preserve_parens_multi");
testToStringAndRTFailure("postfix_should_preserve_parens_multi");
testToStringAndRTFailure("prefix_should_preserve_parens_multi1");
testToStringAndRTFailure("postfix_should_preserve_parens_multi1");
testToStringAndRTFailure("prefix_should_preserve_parens_multi2");
testToStringAndRTFailure("postfix_should_preserve_parens_multi2");
*/
testToStringAndReturn("typeof_should_preserve_parens", "'a'", 1, "'number'");
testToStringAndReturn("typeof_should_preserve_parens1", "'a'", 1, "'number'");
testToStringAndReturn("typeof_should_preserve_parens2", "'a'", 1, "'number'");
testToStringAndReturn("typeof_should_preserve_parens_multi", "'a'", 1, "'number'");
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