// 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 variable declarations with initializers inside of catch and with blocks do not set values in a deeper scope."
);

function catchTest() {
  var e = "foo";

  try {
    throw "bar";
  } catch (e) {
    var e = "baz";
  }

  return e;
}

function catchTest2() {
  var e = "foo";

  try {
    throw "bar";
  } catch (e) {
    var e = "baz";

    return e;
  }
}

function withTest() {
  var e = "foo"
  var object = { 'e' : "bar" };

  with (object) {
    var e = "baz";
  }

  return e;
}

function withTest2() {
  var e = "foo"
  var object = { 'e' : "bar" };

  with (object) {
    var e = "baz";

    return e;
  }
}

shouldBe("catchTest()", "'foo'");
shouldBe("catchTest2()", "'baz'");
shouldBe("withTest()", "'foo'");
shouldBe("withTest2()", "'baz'");
