/* * 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. */ #ifndef MethodCallLinkInfo_h #define MethodCallLinkInfo_h #include "CodeLocation.h" #include "JITCode.h" #include "JITWriteBarrier.h" #include namespace JSC { #if ENABLE(JIT) class RepatchBuffer; struct MethodCallLinkInfo { MethodCallLinkInfo() : seen(false) { } bool seenOnce() { return seen; } void setSeen() { seen = true; } void reset(RepatchBuffer&, JITCode::JITType); unsigned bytecodeIndex; CodeLocationCall callReturnLocation; JITWriteBarrier cachedStructure; JITWriteBarrier cachedPrototypeStructure; // We'd like this to actually be JSFunction, but InternalFunction and JSFunction // don't have a common parent class and we allow specialisation on both JITWriteBarrier cachedFunction; JITWriteBarrier cachedPrototype; bool seen; }; inline void* getMethodCallLinkInfoReturnLocation(MethodCallLinkInfo* methodCallLinkInfo) { return methodCallLinkInfo->callReturnLocation.executableAddress(); } inline unsigned getMethodCallLinkInfoBytecodeIndex(MethodCallLinkInfo* methodCallLinkInfo) { return methodCallLinkInfo->bytecodeIndex; } #endif // ENABLE(JIT) } // namespace JSC #endif // MethodCallLinkInfo_h