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StrChunkPtr.h

#ifndef _STR_StrChunkPtr_H_  // -*-c++-*-

/*
 * Copyright (C) 1991-9 Eric M. Hopper <hopper@omnifarious.mn.org>
 * 
 *     This program is free software; you can redistribute it and/or modify it
 *     under the terms of the GNU Lesser General Public License as published
 *     by the Free Software Foundation; either version 2 of the License, or
 *     (at your option) any later version.
 * 
 *     This program is distributed in the hope that it will be useful, but
 *     WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *     Lesser General Public License for more details.
 * 
 *     You should have received a copy of the GNU Lesser General Public
 *     License along with this program; if not, write to the Free Software
 *     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifdef __GNUG__
#  pragma interface
#endif

/* $Header: /home/hopper/src/cvs/C++/StrMod/StrMod/StrChunkPtr.h,v 1.14 2002/11/25 05:40:05 hopper Exp $ */

// For a change log see ../ChangeLog
// 
// Revision 1.5  1998/11/03 00:27:06  hopper
// Changed operator bool to the more proper (with my bool.h) bool_cst.
//
// Revision 1.4  1996/08/24 13:01:39  hopper
// Added new operator ! method as a counterpart to the operator bool
// conversion.
//
// Revision 1.3  1996/07/07 20:57:27  hopper
// Fixed bug in StrChunkPtr::i_CheckType
//
// Revision 1.2  1996/07/05 19:46:25  hopper
// Various changed to make implementing StrChunkPtrT template easier and
// more efficient.
//
// Revision 1.1  1996/06/29 06:55:50  hopper
// New class StrChunkPtr that acts as a reference counted pointer to
// StrChunk
//

#include <cassert>
#include <LCore/Protocol.h>
#include <LCore/RefCountPtrT.h>
#ifndef _STR_STR_ClassIdent_H_
#  include <StrMod/STR_ClassIdent.h>
#endif
#ifndef _STR_StrChunk_H_
#  include <StrMod/StrChunk.h>
#endif

#define _STR_StrChunkPtr_H_

namespace strmod {
namespace strmod {

class StrChunk;

/** \class StrChunkPtr StrChunkPtr.h StrMod/StrChunkPtr.h
 * A smart pointer class that points a StrChunks and handles their reference
 * counts.
 */
class StrChunkPtr : public lcore::RefCountPtrT<StrChunk>
{
 public:
   //! An easier way to refer to RefCountPtrT<StrChunk>
   typedef lcore::RefCountPtrT<StrChunk> super1;
   static const STR_ClassIdent identifier;

   //@{
   /**
    * These all construct a StrChunkPtr from the appropriate type and maintain
    * the reference count to the pointed at StrChunk.
    */
   inline StrChunkPtr(const StrChunkPtr &b);
   inline StrChunkPtr(const super1 &b);
   inline StrChunkPtr(StrChunk *stptr = 0);
   //@}

   //! See class Protocol
   inline virtual int AreYouA(const lcore::ClassIdent &cid) const;

   //@{
   /**
    * These all set a StrChunkPtrs value from the appropriate type and
    * maintain the reference count to the pointed at StrChunk.
    */
   inline const StrChunkPtr &operator =(const StrChunkPtr &b);
   inline const StrChunkPtr &operator =(const super1 &b);
   inline const StrChunkPtr &operator =(StrChunk *b);
   //@}

 protected:
   virtual const lcore::ClassIdent *i_GetIdent() const { return(&identifier); }
};

//-----------------------------inline functions--------------------------------

inline StrChunkPtr::StrChunkPtr(const StrChunkPtr &b) : super1(b)
{
}

inline StrChunkPtr::StrChunkPtr(const super1 &b) : super1(b)
{
}

inline StrChunkPtr::StrChunkPtr(StrChunk *stptr) : super1(stptr)
{
}

inline int StrChunkPtr::AreYouA(const lcore::ClassIdent &cid) const
{
   return((identifier == cid) || Protocol::AreYouA(cid));
}

inline const StrChunkPtr &StrChunkPtr::operator =(const StrChunkPtr &b)
{
   super1::operator =(b);
   return(*this);
}

inline const StrChunkPtr &StrChunkPtr::operator =(const super1 &b)
{
   super1::operator =(b);
   return(*this);
}

inline const StrChunkPtr &StrChunkPtr::operator =(StrChunk *b)
{
   super1::operator =(b);
   return(*this);
}

}  // namespace strmod
}  // namespace strmod

#endif

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