1 /* 2 * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef JSStaticScopeObject_h 27 #define JSStaticScopeObject_h 28 29 #include "JSVariableObject.h" 30 31 namespace JSC{ 32 33 class JSStaticScopeObject : public JSVariableObject { 34 public: JSStaticScopeObject(ExecState * exec,const Identifier & ident,JSValue value,unsigned attributes)35 JSStaticScopeObject(ExecState* exec, const Identifier& ident, JSValue value, unsigned attributes) 36 : JSVariableObject(exec->globalData(), exec->globalData().staticScopeStructure.get(), &m_symbolTable, reinterpret_cast<Register*>(&m_registerStore + 1)) 37 { 38 m_registerStore.set(exec->globalData(), this, value); 39 symbolTable().add(ident.impl(), SymbolTableEntry(-1, attributes)); 40 } 41 42 virtual void markChildren(MarkStack&); 43 bool isDynamicScope(bool& requiresDynamicChecks) const; 44 virtual JSObject* toThisObject(ExecState*) const; 45 virtual JSValue toStrictThisObject(ExecState*) const; 46 virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&); 47 virtual void put(ExecState*, const Identifier&, JSValue, PutPropertySlot&); 48 void putWithAttributes(ExecState*, const Identifier&, JSValue, unsigned attributes); 49 createStructure(JSGlobalData & globalData,JSValue proto)50 static Structure* createStructure(JSGlobalData& globalData, JSValue proto) { return Structure::create(globalData, proto, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount, &s_info); } 51 52 protected: 53 static const unsigned StructureFlags = OverridesGetOwnPropertySlot | NeedsThisConversion | OverridesMarkChildren | OverridesGetPropertyNames | JSVariableObject::StructureFlags; 54 55 private: 56 SymbolTable m_symbolTable; 57 WriteBarrier<Unknown> m_registerStore; 58 }; 59 60 } 61 62 #endif // JSStaticScopeObject_h 63