123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222 |
- /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
- // test_no_rtti.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)
- // note: this program tests the inter-operability of different
- // extended typeinfo systems. In this example, one class is
- // identified using the default RTTI while the other uses a custom
- // system based on the export key.
- //
- // As this program uses RTTI for one of the types, the test will fail
- // on a system for which RTTI is not enabled or not existent.
- #include <fstream>
- #include <cstdio> // remove
- #include <boost/config.hpp>
- #if defined(BOOST_NO_STDC_NAMESPACE)
- namespace std{
- using ::remove;
- }
- #endif
- #include <boost/static_assert.hpp>
- #include <boost/type_traits/is_same.hpp>
- #include <boost/archive/archive_exception.hpp>
- #include "../test/test_tools.hpp"
- #include <boost/preprocessor/stringize.hpp>
- // #include <boost/preprocessor/cat.hpp>
- // the following fails with (only!) gcc 3.4
- // #include BOOST_PP_STRINGIZE(BOOST_PP_CAT(../test/,BOOST_ARCHIVE_TEST))
- // just copy over the files from the test directory
- #include BOOST_PP_STRINGIZE(BOOST_ARCHIVE_TEST)
- #include <boost/serialization/nvp.hpp>
- #include <boost/serialization/base_object.hpp>
- #include <boost/serialization/export.hpp>
- #include <boost/serialization/type_info_implementation.hpp>
- #include <boost/serialization/extended_type_info_no_rtti.hpp>
- class polymorphic_base
- {
- friend class boost::serialization::access;
- template<class Archive>
- void serialize(Archive & /* ar */, const unsigned int /* file_version */){
- }
- public:
- virtual const char * get_key() const = 0;
- virtual ~polymorphic_base(){};
- };
- BOOST_IS_ABSTRACT(polymorphic_base)
- BOOST_CLASS_TYPE_INFO(
- polymorphic_base,
- extended_type_info_no_rtti<polymorphic_base>
- )
- // note: types which use ...no_rtti MUST be exported
- BOOST_CLASS_EXPORT(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);
- }
- public:
- virtual const char * get_key() const ;
- };
- BOOST_CLASS_TYPE_INFO(
- polymorphic_derived1,
- extended_type_info_no_rtti<polymorphic_derived1>
- )
- BOOST_CLASS_EXPORT(polymorphic_derived1)
- const char * polymorphic_derived1::get_key() const {
- const boost::serialization::extended_type_info *eti
- = boost::serialization::type_info_implementation<polymorphic_derived1>
- ::type::get_instance();
- return eti->get_key();
- }
- 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);
- }
- public:
- virtual const char * get_key() const ;
- };
- // note the mixing of type_info systems is supported.
- BOOST_CLASS_TYPE_INFO(
- polymorphic_derived2,
- boost::serialization::extended_type_info_typeid<polymorphic_derived2>
- )
- BOOST_CLASS_EXPORT(polymorphic_derived2)
- const char * polymorphic_derived2::get_key() const {
- // use the exported key as the identifier
- const boost::serialization::extended_type_info *eti
- = boost::serialization::type_info_implementation<polymorphic_derived2>
- ::type::get_instance();
- return eti->get_key();
- }
- // 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;
- 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;
- ia >> BOOST_SERIALIZATION_NVP(rd1);
- BOOST_CHECK_MESSAGE(
- boost::serialization::type_info_implementation<polymorphic_derived1>
- ::type::get_instance()
- == boost::serialization::type_info_implementation<polymorphic_derived1>
- ::type::get_derived_extended_type_info(*rd1),
- "restored pointer d1 not of correct type"
- );
- ia >> BOOST_SERIALIZATION_NVP(rd2);
- BOOST_CHECK_MESSAGE(
- boost::serialization::type_info_implementation<polymorphic_derived2>
- ::type::get_instance()
- == boost::serialization::type_info_implementation<polymorphic_derived2>
- ::type::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"
- );
- BOOST_CHECK_MESSAGE(
- boost::serialization::type_info_implementation<polymorphic_derived1>
- ::type::get_instance()
- == boost::serialization::type_info_implementation<polymorphic_base>
- ::type::get_derived_extended_type_info(*rb1),
- "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_instance()
- == boost::serialization::type_info_implementation<polymorphic_base>
- ::type::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);
- std::remove(testfile);
- return EXIT_SUCCESS;
- }
- // EOF
|