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- /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
- // test_registered.cpp
- // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
- // Use, modification and distribution is subject to the Boost Software
- // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- // should pass compilation and execution
- #include <cstddef> // NULL
- #include <cstdio> // remove
- #include <fstream>
- #include <boost/config.hpp>
- #if defined(BOOST_NO_STDC_NAMESPACE)
- namespace std{
- using ::remove;
- }
- #endif
- #include <boost/archive/archive_exception.hpp>
- #include "test_tools.hpp"
- #include <boost/serialization/base_object.hpp>
- #include <boost/serialization/type_info_implementation.hpp>
- class polymorphic_base
- {
- friend class boost::serialization::access;
- template<class Archive>
- void serialize(Archive & /* ar */, const unsigned int /* file_version */){
- }
- public:
- virtual ~polymorphic_base(){};
- };
- class polymorphic_derived1 : public polymorphic_base
- {
- friend class boost::serialization::access;
- template<class Archive>
- void serialize(Archive &ar, const unsigned int /* file_version */){
- ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(polymorphic_base);
- }
- };
- class polymorphic_derived2 : public polymorphic_base
- {
- friend class boost::serialization::access;
- template<class Archive>
- void serialize(Archive &ar, const unsigned int /* file_version */){
- ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(polymorphic_base);
- }
- };
- // save derived polymorphic class
- void save_derived(const char *testfile)
- {
- test_ostream os(testfile, TEST_STREAM_FLAGS);
- test_oarchive oa(os, TEST_ARCHIVE_FLAGS);
- polymorphic_derived1 *rd1 = new polymorphic_derived1;
- polymorphic_derived2 *rd2 = new polymorphic_derived2;
- // registration IS necessary when serializing pointers of
- // polymorphic classes
- oa.register_type(static_cast<polymorphic_derived1 *>(NULL));
- oa.register_type(static_cast<polymorphic_derived2 *>(NULL));
- oa << BOOST_SERIALIZATION_NVP(rd1);
- oa << BOOST_SERIALIZATION_NVP(rd2);
- // the above opereration registers the derived classes as a side
- // effect. Hence, instances can now be correctly serialized through
- // a base class pointer.
- polymorphic_base *rb1 = rd1;
- polymorphic_base *rb2 = rd2;
- oa << BOOST_SERIALIZATION_NVP(rb1);
- oa << BOOST_SERIALIZATION_NVP(rb2);
- delete rd1;
- delete rd2;
- }
- // save derived polymorphic class
- void load_derived(const char *testfile)
- {
- test_istream is(testfile, TEST_STREAM_FLAGS);
- test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
- polymorphic_derived1 *rd1 = NULL;
- polymorphic_derived2 *rd2 = NULL;
- // registration IS necessary when serializing pointers of
- // polymorphic classes
- ia.register_type(static_cast<polymorphic_derived1 *>(NULL));
- ia.register_type(static_cast<polymorphic_derived2 *>(NULL));
- ia >> BOOST_SERIALIZATION_NVP(rd1);
- const boost::serialization::extended_type_info * p1;
- p1 = & boost::serialization::type_info_implementation<polymorphic_derived1>
- ::type::get_const_instance();
- BOOST_CHECK(NULL != p1);
- const boost::serialization::extended_type_info * p2;
- p2 = boost::serialization::type_info_implementation<polymorphic_derived1>
- ::type::get_const_instance().get_derived_extended_type_info(*rd1);
- BOOST_CHECK(NULL != p2);
- BOOST_CHECK_MESSAGE(p1 == p2, "restored pointer d1 not of correct type");
- ia >> BOOST_SERIALIZATION_NVP(rd2);
- BOOST_CHECK_MESSAGE(
- & boost::serialization::type_info_implementation<polymorphic_derived2>
- ::type::get_const_instance()
- ==
- boost::serialization::type_info_implementation<polymorphic_derived2>
- ::type::get_const_instance().get_derived_extended_type_info(*rd2),
- "restored pointer d2 not of correct type"
- );
- polymorphic_base *rb1 = NULL;
- polymorphic_base *rb2 = NULL;
- // the above opereration registers the derived classes as a side
- // effect. Hence, instances can now be correctly serialized through
- // a base class pointer.
- ia >> BOOST_SERIALIZATION_NVP(rb1);
- BOOST_CHECK_MESSAGE(
- rb1 == dynamic_cast<polymorphic_base *>(rd1),
- "serialized pointers not correctly restored"
- );
- p1 = & boost::serialization::type_info_implementation<polymorphic_derived1>
- ::type::get_const_instance();
- BOOST_CHECK(NULL != p1);
- p2 = boost::serialization::type_info_implementation<polymorphic_base>
- ::type::get_const_instance().get_derived_extended_type_info(*rb1);
- BOOST_CHECK(NULL != p2);
- BOOST_CHECK_MESSAGE(p1 == p2, "restored pointer b1 not of correct type");
- ia >> BOOST_SERIALIZATION_NVP(rb2);
- BOOST_CHECK_MESSAGE(
- rb2 == dynamic_cast<polymorphic_base *>(rd2),
- "serialized pointers not correctly restored"
- );
- BOOST_CHECK_MESSAGE(
- & boost::serialization::type_info_implementation<polymorphic_derived2>
- ::type::get_const_instance()
- == boost::serialization::type_info_implementation<polymorphic_base>
- ::type::get_const_instance().get_derived_extended_type_info(*rb2),
- "restored pointer b2 not of correct type"
- );
- delete rb1;
- delete rb2;
- }
- // save registered polymorphic class
- void save_registered(const char *testfile)
- {
- test_ostream os(testfile, TEST_STREAM_FLAGS);
- test_oarchive oa(os, TEST_ARCHIVE_FLAGS);
- polymorphic_base *rb1 = new polymorphic_derived1;
- polymorphic_base *rb2 = new polymorphic_derived2;
- // registration (forward declaration) will permit correct serialization
- // through a pointer to a base class
- oa.register_type(static_cast<polymorphic_derived1 *>(NULL));
- oa.register_type(static_cast<polymorphic_derived2 *>(NULL));
- oa << BOOST_SERIALIZATION_NVP(rb1) << BOOST_SERIALIZATION_NVP(rb2);
- delete rb1;
- delete rb2;
- }
- // save registered polymorphic class
- void load_registered(const char *testfile)
- {
- test_istream is(testfile, TEST_STREAM_FLAGS);
- test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
- polymorphic_base *rb1 = NULL;
- polymorphic_base *rb2 = NULL;
- // registration (forward declaration) will permit correct serialization
- // through a pointer to a base class
- ia.register_type(static_cast<polymorphic_derived1 *>(NULL));
- ia.register_type(static_cast<polymorphic_derived2 *>(NULL));
- ia >> BOOST_SERIALIZATION_NVP(rb1) >> BOOST_SERIALIZATION_NVP(rb2);
- BOOST_CHECK_MESSAGE(
- & boost::serialization::type_info_implementation<polymorphic_derived1>
- ::type::get_const_instance()
- == boost::serialization::type_info_implementation<polymorphic_base>
- ::type::get_const_instance().get_derived_extended_type_info(*rb1),
- "restored pointer b1 not of correct type"
- );
- BOOST_CHECK_MESSAGE(
- & boost::serialization::type_info_implementation<polymorphic_derived2>
- ::type::get_const_instance()
- == boost::serialization::type_info_implementation<polymorphic_base>
- ::type::get_const_instance().get_derived_extended_type_info(*rb2),
- "restored pointer b2 not of correct type"
- );
- delete rb1;
- delete rb2;
- }
- int
- test_main( int /* argc */, char* /* argv */[] )
- {
- const char * testfile = boost::archive::tmpnam(NULL);
-
- BOOST_REQUIRE(NULL != testfile);
- save_derived(testfile);
- load_derived(testfile);
- save_registered(testfile);
- load_registered(testfile);
- std::remove(testfile);
- return EXIT_SUCCESS;
- }
- // EOF
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