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 protected: 35 using JSVariableObject::JSVariableObjectData; 36 struct JSStaticScopeObjectData : public JSVariableObjectData { JSStaticScopeObjectDataJSStaticScopeObjectData37 JSStaticScopeObjectData() 38 : JSVariableObjectData(&symbolTable, ®isterStore + 1) 39 { 40 } 41 SymbolTable symbolTable; 42 Register registerStore; 43 }; 44 45 public: JSStaticScopeObject(ExecState * exec,const Identifier & ident,JSValue value,unsigned attributes)46 JSStaticScopeObject(ExecState* exec, const Identifier& ident, JSValue value, unsigned attributes) 47 : JSVariableObject(exec->globalData().staticScopeStructure, new JSStaticScopeObjectData()) 48 { 49 d()->registerStore = value; 50 symbolTable().add(ident.ustring().rep(), SymbolTableEntry(-1, attributes)); 51 } 52 virtual ~JSStaticScopeObject(); 53 virtual void markChildren(MarkStack&); 54 bool isDynamicScope() const; 55 virtual JSObject* toThisObject(ExecState*) const; 56 virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&); 57 virtual void put(ExecState*, const Identifier&, JSValue, PutPropertySlot&); 58 void putWithAttributes(ExecState*, const Identifier&, JSValue, unsigned attributes); 59 createStructure(JSValue proto)60 static PassRefPtr<Structure> createStructure(JSValue proto) { return Structure::create(proto, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount); } 61 62 protected: 63 static const unsigned StructureFlags = OverridesGetOwnPropertySlot | NeedsThisConversion | OverridesMarkChildren | OverridesGetPropertyNames | JSVariableObject::StructureFlags; 64 65 private: d()66 JSStaticScopeObjectData* d() { return static_cast<JSStaticScopeObjectData*>(JSVariableObject::d); } 67 }; 68 69 } 70 71 #endif // JSStaticScopeObject_h 72