223 lines
6.8 KiB
C++
223 lines
6.8 KiB
C++
/////////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
|