/*//////////////////////////////////////////////////////////////////////////////
// CMT Cosmic Muon Tomography project //////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////

  Copyright (c) 2014, Universita' degli Studi di Padova, INFN sez. di Padova
  All rights reserved

  Authors: Andrea Rigoni Garola < andrea.rigoni@pd.infn.it >

  ------------------------------------------------------------------
  This library 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 3.0 of the License, or (at your option) any later version.

  This library 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 library.

//////////////////////////////////////////////////////////////////////////////*/

#ifndef U_CORE_EXPORT_H
#define U_CORE_EXPORT_H

#include <cstddef> // NULL
#include <iostream>
#include <utility>

#include <boost/config.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/static_assert.hpp>
#include <boost/type_traits/is_polymorphic.hpp>

#include <boost/mpl/and.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/not.hpp>

#include <boost/serialization/assume_abstract.hpp>
#include <boost/serialization/extended_type_info.hpp> // for guid_defined only
#include <boost/serialization/force_include.hpp>
#include <boost/serialization/singleton.hpp>
#include <boost/serialization/static_warning.hpp>

#include <boost/archive/detail/register_archive.hpp>

#include "Core/Archives.h"

////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////

namespace uLib {
namespace Archive {
namespace detail {
namespace extra_detail {

template <class T> struct guid_initializer {
  void export_guid(boost::mpl::false_) const {
    // generates the statically-initialized objects whose constructors
    // register the information allowing serialization of T objects
    // through pointers to their base classes.
    boost::archive::detail::instantiate_ptr_serialization(
        (T *)0, 0, uLib::Archive::detail::adl_tag());
  }
  void export_guid(boost::mpl::true_) const {}
  guid_initializer const &export_guid() const {
    BOOST_STATIC_WARNING(boost::is_polymorphic<T>::value);
    // note: exporting an abstract base class will have no effect
    // and cannot be used to instantitiate serialization code
    // (one might be using this in a DLL to instantiate code)
    // BOOST_STATIC_WARNING(! boost::serialization::is_abstract< T >::value);
    export_guid(boost::serialization::is_abstract<T>());
    return *this;
  }
};

template <typename T> struct init_guid;

} // namespace extra_detail
} // namespace detail
} // namespace Archive
} // namespace uLib

#define ULIB_CLASS_EXPORT_IMPLEMENT(T)                                         \
  namespace uLib {                                                             \
  namespace Archive {                                                          \
  namespace detail {                                                           \
  namespace extra_detail {                                                     \
  template <> struct init_guid<T> {                                            \
    static guid_initializer<T> const &g;                                       \
  };                                                                           \
  guid_initializer<T> const &init_guid<T>::g =                                 \
      ::boost::serialization::singleton<                                       \
          guid_initializer<T>>::get_mutable_instance()                         \
          .export_guid();                                                      \
  }                                                                            \
  }                                                                            \
  }                                                                            \
  }                                                                            \
  /**/

#endif // EXPORT_H