src/v8/test/webkit/dfg-exception.js

// 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 tests that exceptions are thrown correctly."
);

// A large function containing a try/catch - this prevent DFG compilation.
function doesntDFGCompile()
{
    function callMe() {};

    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);

    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);

    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);

    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);

    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);
    callMe(0,1,2,3,4,5,6,7,8,9);

    try {
        return 1;
    } catch (e) {
        return 2;
    }
};

function test(x)
{
    return x();
};

// warmup the test method
for (i = 0; i < 200; ++i)
    test(doesntDFGCompile);

//
var caughtException = false;
try {
    test();
} catch (e) {
    caughtException = true;
}

shouldBe("caughtException", 'true');
var successfullyParsed = true;