| /////////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 |