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      1 /*
      2  *  Copyright (C) 1999-2000 Harri Porten (porten (at) kde.org)
      3  *  Copyright (C) 2003, 2006, 2007, 2008 Apple Inc. All rights reserved.
      4  *  Copyright (C) 2007 Cameron Zwarich (cwzwarich (at) uwaterloo.ca)
      5  *  Copyright (C) 2007 Maks Orlovich
      6  *
      7  *  This library is free software; you can redistribute it and/or
      8  *  modify it under the terms of the GNU Library General Public
      9  *  License as published by the Free Software Foundation; either
     10  *  version 2 of the License, or (at your option) any later version.
     11  *
     12  *  This library is distributed in the hope that it will be useful,
     13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  *  Library General Public License for more details.
     16  *
     17  *  You should have received a copy of the GNU Library General Public License
     18  *  along with this library; see the file COPYING.LIB.  If not, write to
     19  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  *  Boston, MA 02110-1301, USA.
     21  *
     22  */
     23 
     24 #ifndef InternalFunction_h
     25 #define InternalFunction_h
     26 
     27 #include "JSObject.h"
     28 #include "Identifier.h"
     29 
     30 namespace JSC {
     31 
     32     class FunctionPrototype;
     33 
     34     class InternalFunction : public JSObject {
     35     public:
     36         virtual const ClassInfo* classInfo() const;
     37         static JS_EXPORTDATA const ClassInfo info;
     38 
     39         const UString& name(ExecState*);
     40         const UString displayName(ExecState*);
     41         const UString calculatedDisplayName(ExecState*);
     42 
     43         static PassRefPtr<Structure> createStructure(JSValue proto)
     44         {
     45             return Structure::create(proto, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount);
     46         }
     47 
     48     protected:
     49         static const unsigned StructureFlags = ImplementsHasInstance | JSObject::StructureFlags;
     50 
     51         InternalFunction(NonNullPassRefPtr<Structure> structure) : JSObject(structure) { }
     52         InternalFunction(JSGlobalData*, NonNullPassRefPtr<Structure>, const Identifier&);
     53 
     54     private:
     55         virtual CallType getCallData(CallData&) = 0;
     56     };
     57 
     58     InternalFunction* asInternalFunction(JSValue);
     59 
     60     inline InternalFunction* asInternalFunction(JSValue value)
     61     {
     62         ASSERT(asObject(value)->inherits(&InternalFunction::info));
     63         return static_cast<InternalFunction*>(asObject(value));
     64     }
     65 
     66 } // namespace JSC
     67 
     68 #endif // InternalFunction_h
     69