handle_macros.h

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/* Author(s)     : Francois Mauger <mauger@lpccaen.in2p3.fr>
 * Creation date : 2012-03-20
 * Last modified : 2013-04-23
 */

#ifndef DATATOOLS_HANDLE_MACROS_H
#define DATATOOLS_HANDLE_MACROS_H

// Standard Library:
#include <stdexcept>
#include <sstream>

// Third Party:
// - Boost:
#include <boost/preprocessor/stringize.hpp>

// This Project:
#include <datatools/handle.h>

// Macros:

#define DATATOOLS_HANDLE_DECLARE(HandleVar,Type)  \
  ::datatools::handle<Type> HandleVar;      \
              \
  

#define DATATOOLS_HANDLE_DECLARE_NEW(HandleVar,Type)  \
  ::datatools::handle<Type> HandleVar(new Type);  \
              \
  

#define DATATOOLS_HANDLE_GET_REF(RefVar,HandleVar,Type)     \
  DT_THROW_IF (! HandleVar,           \
         std::logic_error,          \
         "Handle '" << BOOST_PP_STRINGIZE(HandleVar) << "' has no data !"); \
  const Type& RefVar = HandleVar.get();


#define DATATOOLS_HANDLE_GRAB_REF(RefVar,HandleVar,Type)    \
  DT_THROW_IF (! HandleVar,           \
         std::logic_error,          \
         "Handle '" << BOOST_PP_STRINGIZE(HandleVar) << "' has no data !"); \
  Type& RefVar = HandleVar.grab();


#endif // DATATOOLS_HANDLE_MACROS_H

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