/* * 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 MethodCallLinkStatus_h #define MethodCallLinkStatus_h namespace JSC { class CodeBlock; class JSObject; class Structure; class MethodCallLinkStatus { public: MethodCallLinkStatus() : m_structure(0) , m_prototypeStructure(0) , m_function(0) , m_prototype(0) { } MethodCallLinkStatus( Structure* structure, Structure* prototypeStructure, JSObject* function, JSObject* prototype) : m_structure(structure) , m_prototypeStructure(prototypeStructure) , m_function(function) , m_prototype(prototype) { if (!m_function) { ASSERT(!m_structure); ASSERT(!m_prototypeStructure); ASSERT(!m_prototype); } else ASSERT(m_structure); ASSERT(!m_prototype == !m_prototypeStructure); } static MethodCallLinkStatus computeFor(CodeBlock*, unsigned bytecodeIndex); bool isSet() const { return !!m_function; } bool operator!() const { return !m_function; } bool needsPrototypeCheck() const { return !!m_prototype; } Structure* structure() { return m_structure; } Structure* prototypeStructure() { return m_prototypeStructure; } JSObject* function() const { return m_function; } JSObject* prototype() const { return m_prototype; } private: Structure* m_structure; Structure* m_prototypeStructure; JSObject* m_function; JSObject* m_prototype; }; } // namespace JSC #endif // MethodCallLinkStatus_h