// @(#)root/reflex:$Id: VariableBuilder.h 28992 2009-06-15 09:20:22Z axel $
// Author: Stefan Roiser 2004

// Copyright CERN, CH-1211 Geneva 23, 2004-2006, All rights reserved.
//
// Permission to use, copy, modify, and distribute this software for any
// purpose is hereby granted without fee, provided that this copyright and
// permissions notice appear in all copies and derivatives.
//
// This software is provided "as is" without express or implied warranty.

#ifndef Reflex_VariableBuilder
#define Reflex_VariableBuilder

// Include files
#include "Reflex/Reflex.h"
#include "Reflex/Builder/TypeBuilder.h"


namespace Reflex {

   // forward declarations

   /** @class VariableBuilder VariableBuilder.h Reflex/Builder/VariableBuilder.h
   *  @author Stefan Roiser
   *  @date 6/4/2005
   *  @ingroup RefBld
   */
   class RFLX_API VariableBuilder {

   public:

      /** constructor */
      VariableBuilder( const char * nam,
         const Type & typ,
         size_t offs,
         unsigned int modifiers = 0 );


      /** destructor */
      virtual ~VariableBuilder();


      /** 
      * AddProperty will add a property
      * @param  key the property key
      * @param  value the value of the property
      * @return a reference to the building class
      */
      VariableBuilder & AddProperty( const char * key, 
         Any value );
      VariableBuilder & AddProperty( const char * key,
         const char * value );


      /**
      * ToMember will return the member currently being built
      * @return member currently being built
      */
      Member ToMember();

   private:

      /** function member */
      Member fDataMember;

   }; // class VariableBuilder


   /** 
   * @class VariableBuilderImpl VariableBuilder.h Reflex/Builder/VariableBuilder.h
   * @author Stefan Roiser
   * @date 6/4/2005
   * @ingroup RefBld
   */
   class RFLX_API VariableBuilderImpl {

   public:

      /** constructor */
      VariableBuilderImpl( const char * nam,
         const Type & typ,
         size_t offs,
         unsigned int modifiers = 0 );


      /** destructor */
      ~VariableBuilderImpl();


      /** AddProperty will add a property 
      * @param  key the property key
      * @param  value the value of the property
      * @return a reference to the building class
      */
      void AddProperty( const char * key, 
         Any value );
      void AddProperty( const char * key, 
         const char * value );


      /**
      * ToMember will return the member currently being built
      * @return member currently being built
      */
      Member ToMember();

   private:

      /** member being built */
      Member fDataMember;

   }; // class VariableBuilderImpl


   /** 
   * @class VariableBuilderT VariableBuilder.h Reflex/Builder/VariableBuilder.h
   * @author Stefan Roiser
   * @date 6/4/2005
   * @ingroup RefBld
   */
   template < typename D > class VariableBuilderT {

   public:

      /** constructor */
      VariableBuilderT( const char * nam,
         size_t offs,
         unsigned int modifiers = 0 );


      /** destructor */
      virtual ~VariableBuilderT() {}


      /** 
      * AddProperty will add a property 
      * @param  key the property key
      * @param  value the value of the property
      * @return a reference to the building class
      */
      template < typename P >
      VariableBuilderT & AddProperty( const char * key, P value );


      /**
      * ToMember will return the member currently being built
      * @return member currently being built
      */
      Member ToMember();

   private:

      /** data member builder implementation */
      VariableBuilderImpl fDataMemberBuilderImpl;

   }; // class VariableBuilderT


} // namespace Reflex


//-------------------------------------------------------------------------------
template < typename D > 
inline Reflex::VariableBuilderT<D>::VariableBuilderT( const char * nam,
                                                            size_t offs,
                                                            unsigned int modifiers ) 
//-------------------------------------------------------------------------------
   : fDataMemberBuilderImpl( nam,
                             TypeDistiller<D>::Get(),
                             offs,
                             modifiers ) {}


//-------------------------------------------------------------------------------
template < typename D > template < typename P >
inline Reflex::VariableBuilderT<D> &
Reflex::VariableBuilderT<D>::AddProperty( const char * key, 
                                                P value ) {
//-------------------------------------------------------------------------------
   fDataMemberBuilderImpl.AddProperty(key, value);
   return * this;
}


//-------------------------------------------------------------------------------
template < typename D > inline Reflex::Member
Reflex::VariableBuilderT<D>::ToMember() {
//-------------------------------------------------------------------------------
   return fDataMemberBuilderImpl.ToMember();
}

#endif // Reflex_VariableBuilder