/* * Copyright (C) 2012 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. ``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 * 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. */ #include "config.h" #include "MethodCallLinkStatus.h" #include "CodeBlock.h" namespace JSC { MethodCallLinkStatus MethodCallLinkStatus::computeFor(CodeBlock* profiledBlock, unsigned bytecodeIndex) { UNUSED_PARAM(profiledBlock); UNUSED_PARAM(bytecodeIndex); #if ENABLE(JIT) && ENABLE(VALUE_PROFILER) // NOTE: This does not have an LLInt fall-back because LLInt does not do any method // call link caching. if (!profiledBlock->numberOfMethodCallLinkInfos()) return MethodCallLinkStatus(); MethodCallLinkInfo& methodCall = profiledBlock->getMethodCallLinkInfo(bytecodeIndex); if (!methodCall.seen || !methodCall.cachedStructure) return MethodCallLinkStatus(); if (methodCall.cachedPrototype.get() == profiledBlock->globalObject()->methodCallDummy()) { return MethodCallLinkStatus( methodCall.cachedStructure.get(), 0, methodCall.cachedFunction.get(), 0); } return MethodCallLinkStatus( methodCall.cachedStructure.get(), methodCall.cachedPrototypeStructure.get(), methodCall.cachedFunction.get(), methodCall.cachedPrototype.get()); #else // ENABLE(JIT) return MethodCallLinkStatus(); #endif // ENABLE(JIT) } } // namespace JSC