luaObjRef.h

Go to the documentation of this file.

/************************************************************************
**
** Copyright (C) 2009 K2FS Sistemas e Projetos Ltd.  
** All rights reserved.
**
************************************************************************/

#ifndef _LUAOBJREF_H_
#define _LUAOBJREF_H_


#include "luaEnv.h"

class LUAUTILS_API_EXPORT LuaObjRef
{
public:
  LuaObjRef();
  LuaObjRef(const LuaObjRef& other);
  LuaObjRef(LuaEnv* lua, int index, bool ref = false);
  ~LuaObjRef();

  LuaObjRef& operator=(const LuaObjRef&);

  void makeRef();

  int ref() const { return _ref; }

  void push() const;
  
  bool isValid() const { return _lua != NULL; }

  LuaEnv* env() const { return _lua; }

  void adjustStackIndex(int offset);

protected:
  int objectPos();
  
  LuaEnv* _lua;          
  int     _stackIndex;   
  int     _ref;          

};

#endif