diff options
Diffstat (limited to 'deps/v8/test/webkit/dfg-proto-access-inline-osr-exit.js')
| -rw-r--r-- | deps/v8/test/webkit/dfg-proto-access-inline-osr-exit.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/deps/v8/test/webkit/dfg-proto-access-inline-osr-exit.js b/deps/v8/test/webkit/dfg-proto-access-inline-osr-exit.js new file mode 100644 index 0000000000..35299806da --- /dev/null +++ b/deps/v8/test/webkit/dfg-proto-access-inline-osr-exit.js @@ -0,0 +1,44 @@ +// 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( +"Tests what happens when we OSR exit on an inlined prototype access due to a change in the prototype chain." +); + +function foo(o) { + return o.g.f; +} + +function Thingy() { +} + +var myProto = {f:42}; + +Thingy.prototype = myProto; + +for (var i = 0; i < 200; ++i) { + if (i == 150) + myProto.g = 67; + shouldBe("foo({g:new Thingy()})", "42"); +} + |