anySerialization.h

/* Copyright (c) 2012, Daniel Nachbaur <daniel.nachbaur@gmail.com>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 3.0 as published
 * by the Free Software Foundation.
 *
 * 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; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef LUNCHBOX_ANYSERIALIZATION_H
#define LUNCHBOX_ANYSERIALIZATION_H

#include <lunchbox/any.h>
#include <lunchbox/types.h>
#include <servus/uint128_t.h>

#include <boost/mpl/for_each.hpp>
#include <boost/mpl/list.hpp>

#include <boost/serialization/export.hpp>
#include <boost/serialization/extended_type_info.hpp>

#define SERIALIZABLEANY(CLASS) BOOST_CLASS_EXPORT(lunchbox::Any::holder<CLASS>)

namespace lunchbox
{
typedef boost::mpl::list<int8_t, uint8_t, int16_t, uint16_t, int32_t, uint32_t,
                         int64_t, uint64_t, float, double, bool, std::string,
                         servus::uint128_t>
    podTypes;

template <class Archive>
struct registerWrapper
{
    explicit registerWrapper(Archive& ar)
        : ar_(ar)
    {
    }
    Archive& ar_;

    template <typename T>
    void operator()(T)
    {
        ar_.template register_type<Any::holder<T> >();
    }
};
template <class TypeList, class Archive>
void registerTypelist(Archive& ar)
{
    boost::mpl::for_each<TypeList>(registerWrapper<Archive>(ar));
}

template <class Archive, class Object, class Stream>
void serializeAny(Object& object, Stream& stream)
{
    Archive ar(stream);
    registerTypelist<podTypes>(ar);
    ar& object;
}

template <class Archive, class Object, class Stream>
void saveAny(Object& object, Stream& stream)
{
    Archive ar(stream);
    registerTypelist<podTypes>(ar);
    ar << object;
}

template <class Archive, class Object, class Stream>
void loadAny(Object& object, Stream& stream)
{
    Archive ar(stream);
    registerTypelist<podTypes>(ar);
    ar >> object;
}
}

#endif