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/////////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 <cstddef>
#include <fstream>
#include <iostream>
#include <boost/config.hpp>
#include <cstdio> // remove
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{
using ::remove;
}
#endif
#include <boost/serialization/type_info_implementation.hpp>
#include <boost/serialization/export.hpp>
#include <boost/serialization/nvp.hpp>
#include "test_tools.hpp"
#include <boost/archive/polymorphic_oarchive.hpp>
#include <boost/archive/polymorphic_iarchive.hpp>
#include "polymorphic_base.hpp"
#include "polymorphic_derived1.hpp"
#include "polymorphic_derived2.hpp"
// save derived polymorphic class
void save_derived(const char *testfile)
{
test_ostream os(testfile, TEST_STREAM_FLAGS);
test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS);
boost::archive::polymorphic_oarchive & oa_interface = oa_implementation;
polymorphic_derived1 *rd1 = new polymorphic_derived1;
polymorphic_derived2 *rd2 = new polymorphic_derived2;
std::cout << "saving polymorphic_derived1 (no_rtti)\n";
oa_interface << BOOST_SERIALIZATION_NVP(rd1);
std::cout << "saving polymorphic_derived2\n";
oa_interface << BOOST_SERIALIZATION_NVP(rd2);
const polymorphic_base *rb1 = rd1;
polymorphic_base *rb2 = rd2;
std::cout << "saving polymorphic_derived1 (no_rtti) through base (rtti)\n";
oa_interface << BOOST_SERIALIZATION_NVP(rb1);
std::cout << "saving polymorphic_derived2 through base\n";
oa_interface << BOOST_SERIALIZATION_NVP(rb2);
delete rd1;
delete rd2;
}
void load_derived(const char *testfile)
{
test_istream is(testfile, TEST_STREAM_FLAGS);
test_iarchive ia_implementation(is, TEST_ARCHIVE_FLAGS);
boost::archive::polymorphic_iarchive & ia_interface = ia_implementation;
polymorphic_derived1 *rd1 = NULL;
polymorphic_derived2 *rd2 = NULL;
std::cout << "loading polymorphic_derived1 (no_rtti)\n";
ia_interface >> BOOST_SERIALIZATION_NVP(rd1);
BOOST_CHECK_MESSAGE(
boost::serialization::type_info_implementation<
polymorphic_derived1
>::type::get_const_instance()
==
* boost::serialization::type_info_implementation<
polymorphic_derived1
>::type::get_const_instance().get_derived_extended_type_info(*rd1)
,
"restored pointer d1 not of correct type"
);
std::cout << "loading polymorphic_derived2\n";
ia_interface >> 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.
std::cout << "loading polymorphic_derived1 (no_rtti) through base (no_rtti)\n";
ia_interface >> 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_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"
);
std::cout << "loading polymorphic_derived2 through base (no_rtti)\n";
ia_interface >> 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;
}
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
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