1 /* 2 * Copyright (C) 1999-2001 Harri Porten (porten (at) kde.org) 3 * Copyright (C) 2001 Peter Kelly (pmk (at) post.com) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef GetterSetter_h 24 #define GetterSetter_h 25 26 #include "JSCell.h" 27 28 #include "CallFrame.h" 29 #include "Structure.h" 30 31 namespace JSC { 32 33 class JSObject; 34 35 // This is an internal value object which stores getter and setter functions 36 // for a property. 37 class GetterSetter : public JSCell { 38 friend class JIT; 39 public: 40 GetterSetter(ExecState* exec) 41 : JSCell(exec->globalData(), exec->globalData().getterSetterStructure.get()) 42 { 43 } 44 45 virtual void markChildren(MarkStack&); 46 47 JSObject* getter() const { return m_getter.get(); } 48 void setGetter(JSGlobalData& globalData, JSObject* getter) { m_getter.set(globalData, this, getter); } 49 JSObject* setter() const { return m_setter.get(); } 50 void setSetter(JSGlobalData& globalData, JSObject* setter) { m_setter.set(globalData, this, setter); } 51 static Structure* createStructure(JSGlobalData& globalData, JSValue prototype) 52 { 53 return Structure::create(globalData, prototype, TypeInfo(GetterSetterType, OverridesMarkChildren), AnonymousSlotCount, 0); 54 } 55 private: 56 virtual bool isGetterSetter() const; 57 58 WriteBarrier<JSObject> m_getter; 59 WriteBarrier<JSObject> m_setter; 60 }; 61 62 GetterSetter* asGetterSetter(JSValue); 63 64 inline GetterSetter* asGetterSetter(JSValue value) 65 { 66 ASSERT(value.asCell()->isGetterSetter()); 67 return static_cast<GetterSetter*>(value.asCell()); 68 } 69 70 71 } // namespace JSC 72 73 #endif // GetterSetter_h 74
