123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160 |
- #ifndef BOOST_SERIALIZATION_VARIANT_HPP
- #define BOOST_SERIALIZATION_VARIANT_HPP
- #if defined(_MSC_VER) && (_MSC_VER >= 1020)
- # pragma once
- #endif
- #if defined(_MSC_VER) && (_MSC_VER <= 1020)
- # pragma warning (disable : 4786)
- #endif
- #include <boost/mpl/front.hpp>
- #include <boost/mpl/pop_front.hpp>
- #include <boost/mpl/eval_if.hpp>
- #include <boost/mpl/identity.hpp>
- #include <boost/mpl/size.hpp>
- #include <boost/mpl/empty.hpp>
- #include <boost/serialization/throw_exception.hpp>
- #include <boost/variant.hpp>
- #include <boost/archive/archive_exception.hpp>
- #include <boost/serialization/split_free.hpp>
- #include <boost/serialization/serialization.hpp>
- namespace boost {
- namespace serialization {
- template<class Archive>
- struct variant_save_visitor : boost::static_visitor<> {
- variant_save_visitor(Archive& ar) :
- m_ar(ar)
- {}
- template<class T>
- void operator()(T const & value) const
- {
- m_ar << BOOST_SERIALIZATION_NVP(value);
- }
- private:
- Archive & m_ar;
- };
- template<class Archive, BOOST_VARIANT_ENUM_PARAMS(/* typename */ class T)>
- void save(
- Archive & ar,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const & v,
- unsigned int
- ){
- int which = v.which();
- ar << BOOST_SERIALIZATION_NVP(which);
- typedef BOOST_DEDUCED_TYPENAME boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>::types types;
- variant_save_visitor<Archive> visitor(ar);
- v.apply_visitor(visitor);
- }
- template<class S>
- struct variant_impl {
- struct load_null {
- template<class Archive, class V>
- static void invoke(
- Archive & ,
- int ,
- V & ,
- const unsigned int
- ){}
- };
- struct load_impl {
- template<class Archive, class V>
- static void invoke(
- Archive & ar,
- int which,
- V & v,
- const unsigned int version
- ){
- if(which == 0){
-
-
-
-
- typedef BOOST_DEDUCED_TYPENAME mpl::front<S>::type head_type;
- head_type value;
- ar >> BOOST_SERIALIZATION_NVP(value);
- v = value;
- ar.reset_object_address(& boost::get<head_type>(v), & value);
- return;
- }
- typedef BOOST_DEDUCED_TYPENAME mpl::pop_front<S>::type type;
- variant_impl<type>::load(ar, which - 1, v, version);
- }
- };
- template<class Archive, class V>
- static void load(
- Archive & ar,
- int which,
- V & v,
- const unsigned int version
- ){
- typedef BOOST_DEDUCED_TYPENAME mpl::eval_if<mpl::empty<S>,
- mpl::identity<load_null>,
- mpl::identity<load_impl>
- >::type typex;
- typex::invoke(ar, which, v, version);
- }
- };
- template<class Archive, BOOST_VARIANT_ENUM_PARAMS(/* typename */ class T)>
- void load(
- Archive & ar,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>& v,
- const unsigned int version
- ){
- int which;
- typedef BOOST_DEDUCED_TYPENAME boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>::types types;
- ar >> BOOST_SERIALIZATION_NVP(which);
- if(which >= mpl::size<types>::value)
-
- boost::serialization::throw_exception(
- boost::archive::archive_exception(
- boost::archive::archive_exception::unsupported_version
- )
- );
- variant_impl<types>::load(ar, which, v, version);
- }
- template<class Archive,BOOST_VARIANT_ENUM_PARAMS(/* typename */ class T)>
- inline void serialize(
- Archive & ar,
- boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> & v,
- const unsigned int file_version
- ){
- split_free(ar,v,file_version);
- }
- }
- }
- #endif
|