Add boost/core/serialization.hpp, serialization_nvp_test, serialization_split_free_test

include/boost/core/serialization.hpp

@@ -0,0 +1,85 @@
+#ifndef BOOST_CORE_SERIALIZATION_HPP_INCLUDED
+#define BOOST_CORE_SERIALIZATION_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// Copyright 2023 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+//
+// Utilities needed to implement serialization support
+// without including a Boost.Serialization header
+
+#include <boost/core/nvp.hpp>
+#include <cstddef>
+
+namespace boost
+{
+
+namespace serialization
+{
+
+// Forward declarations (needed for specializations)
+
+template<class T> struct version;
+
+// Our own version_type replacement. This has to be in
+// the `serialization` namespace, because its only purpose
+// is to add `serialization` as an associated namespace.
+
+struct core_version_type
+{
+    unsigned int version_;
+
+    core_version_type( unsigned int version ): version_( version ) {}
+    operator unsigned int () const { return version_; }
+};
+
+} // namespace serialization
+
+namespace core
+{
+
+// nvp
+
+using serialization::nvp;
+using serialization::make_nvp;
+
+// split_free
+
+namespace detail
+{
+
+template<bool IsSaving> struct load_or_save;
+
+template<> struct load_or_save<true>
+{
+    template<class A, class T> void operator()( A& a, T& t, unsigned int v ) const
+    {
+		save( a, t, serialization::core_version_type( v ) );
+    }
+};
+
+template<> struct load_or_save<false>
+{
+    template<class A, class T> void operator()( A& a, T& t, unsigned int v ) const
+    {
+        load( a, t, serialization::core_version_type( v ) );
+    }
+};
+
+} // namespace detail
+
+template<class A, class T> inline void split_free( A& a, T& t, unsigned int v )
+{
+    detail::load_or_save< A::is_saving::value >()( a, t, v );
+}
+
+} // namespace core
+} // namespace boost
+
+#endif  // #ifndef BOOST_CORE_SERIALIZATION_HPP_INCLUDED

test/CMakeLists.txt

@@ -31,6 +31,11 @@ set(BOOST_TEST_LINK_LIBRARIES Boost::core Boost::config Boost::move Boost::smart
 
 boost_test(TYPE run SOURCES fclose_deleter_test.cpp)
 
+set(BOOST_TEST_LINK_LIBRARIES Boost::core Boost::serialization)
+
+boost_test(TYPE run SOURCES serialization_nvp_test.cpp)
+boost_test(TYPE run SOURCES serialization_split_free_test.cpp)
+
 endif()
 
 add_subdirectory(swap)

test/Jamfile.v2

@@ -363,5 +363,8 @@ run memory_resource_test.cpp ;
 run data_test.cpp ;
 run size_test.cpp ;
 
+run serialization_nvp_test.cpp : : : <library>/boost//serialization/<warnings>off ;
+run serialization_split_free_test.cpp : : : <library>/boost//serialization/<warnings>off ;
+
 use-project /boost/core/swap : ./swap ;
 build-project ./swap ;

test/serialization_nvp_test.cpp

@@ -0,0 +1,49 @@
+// Copyright 2023 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/core/serialization.hpp>
+
+struct X
+{
+    int a, b;
+
+    template<class Ar> void serialize( Ar& ar, unsigned /*v*/ )
+    {
+        ar & boost::core::make_nvp( "a", a );
+        ar & boost::core::make_nvp( "b", b );
+    }
+};
+
+#include <boost/archive/xml_oarchive.hpp>
+#include <boost/archive/xml_iarchive.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <sstream>
+#include <string>
+
+int main()
+{
+    std::ostringstream os;
+
+    X x1 = { 7, 11 };
+
+    {
+        boost::archive::xml_oarchive ar( os );
+        ar << boost::core::make_nvp( "x1", x1 );
+    }
+
+    std::string s = os.str();
+
+    X x2 = {};
+
+    {
+        std::istringstream is( s );
+        boost::archive::xml_iarchive ar( is );
+        ar >> boost::make_nvp( "x2", x2 );
+    }
+
+    BOOST_TEST_EQ( x1.a, x2.a );
+    BOOST_TEST_EQ( x1.b, x2.b );
+
+    return boost::report_errors();
+}

test/serialization_split_free_test.cpp

@@ -0,0 +1,60 @@
+// Copyright 2023 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/core/serialization.hpp>
+
+struct X
+{
+    int a, b;
+};
+
+template<class Ar> void load( Ar& ar, X& x, unsigned /*v*/ )
+{
+    ar >> x.a;
+    ar >> x.b;
+}
+
+template<class Ar> void save( Ar& ar, X const& x, unsigned /*v*/ )
+{
+    ar << x.a;
+    ar << x.b;
+}
+
+template<class Ar> void serialize( Ar& ar, X& x, unsigned v )
+{
+    boost::core::split_free( ar, x, v );
+}
+
+#include <boost/archive/text_oarchive.hpp>
+#include <boost/archive/text_iarchive.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <sstream>
+#include <string>
+
+int main()
+{
+    std::ostringstream os;
+
+    X x1 = { 7, 11 };
+
+    {
+        boost::archive::text_oarchive ar( os );
+        ar << x1;
+    }
+
+    std::string s = os.str();
+
+    X x2 = {};
+
+    {
+        std::istringstream is( s );
+        boost::archive::text_iarchive ar( is );
+        ar >> x2;
+    }
+
+    BOOST_TEST_EQ( x1.a, x2.a );
+    BOOST_TEST_EQ( x1.b, x2.b );
+
+    return boost::report_errors();
+}