runtime/InternalFunction.h

   1 /*
   2  *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
   3  *  Copyright (C) 2003, 2006, 2007, 2008 Apple Inc. All rights reserved.
   4  *  Copyright (C) 2007 Cameron Zwarich (cwzwarich@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