Squashed 'third_party/boostorg/serialization/' content from commit 738695b
Change-Id: I48528198ad1f62b90288d249eb2243d4db02fd5d
git-subtree-dir: third_party/boostorg/serialization
git-subtree-split: 738695b70733f9d592a570fb17a505d6a029b48a
diff --git a/include/boost/serialization/export.hpp b/include/boost/serialization/export.hpp
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+#ifndef BOOST_SERIALIZATION_EXPORT_HPP
+#define BOOST_SERIALIZATION_EXPORT_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// export.hpp: set traits of classes to be serialized
+
+// (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)
+
+// See http://www.boost.org for updates, documentation, and revision history.
+
+// (C) Copyright 2006 David Abrahams - http://www.boost.org.
+// implementation of class export functionality. This is an alternative to
+// "forward declaration" method to provoke instantiation of derived classes
+// that are to be serialized through pointers.
+
+#include <utility>
+#include <cstddef> // NULL
+
+#include <boost/config.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/preprocessor/stringize.hpp>
+#include <boost/type_traits/is_polymorphic.hpp>
+
+#include <boost/mpl/assert.hpp>
+#include <boost/mpl/and.hpp>
+#include <boost/mpl/not.hpp>
+#include <boost/mpl/bool_fwd.hpp>
+
+#include <boost/serialization/extended_type_info.hpp> // for guid_defined only
+#include <boost/serialization/static_warning.hpp>
+#include <boost/serialization/assume_abstract.hpp>
+#include <boost/serialization/force_include.hpp>
+#include <boost/serialization/singleton.hpp>
+
+#include <boost/archive/detail/register_archive.hpp>
+
+#include <iostream>
+
+namespace boost {
+namespace archive {
+namespace detail {
+
+class basic_pointer_iserializer;
+class basic_pointer_oserializer;
+
+template<class Archive, class T>
+class pointer_iserializer;
+template<class Archive, class T>
+class pointer_oserializer;
+
+template <class Archive, class Serializable>
+struct export_impl
+{
+ static const basic_pointer_iserializer &
+ enable_load(mpl::true_){
+ return boost::serialization::singleton<
+ pointer_iserializer<Archive, Serializable>
+ >::get_const_instance();
+ }
+
+ static const basic_pointer_oserializer &
+ enable_save(mpl::true_){
+ return boost::serialization::singleton<
+ pointer_oserializer<Archive, Serializable>
+ >::get_const_instance();
+ }
+ inline static void enable_load(mpl::false_) {}
+ inline static void enable_save(mpl::false_) {}
+};
+
+// On many platforms, naming a specialization of this template is
+// enough to cause its argument to be instantiated.
+template <void(*)()>
+struct instantiate_function {};
+
+template <class Archive, class Serializable>
+struct ptr_serialization_support
+{
+# if defined(BOOST_MSVC) || defined(__SUNPRO_CC)
+ virtual BOOST_DLLEXPORT void instantiate() BOOST_USED;
+# else
+ static BOOST_DLLEXPORT void instantiate() BOOST_USED;
+ typedef instantiate_function<
+ &ptr_serialization_support::instantiate
+ > x;
+# endif
+};
+
+template <class Archive, class Serializable>
+BOOST_DLLEXPORT void
+ptr_serialization_support<Archive,Serializable>::instantiate()
+{
+ export_impl<Archive,Serializable>::enable_save(
+ typename Archive::is_saving()
+ );
+
+ export_impl<Archive,Serializable>::enable_load(
+ typename Archive::is_loading()
+ );
+}
+
+// Note INTENTIONAL usage of anonymous namespace in header.
+// This was made this way so that export.hpp could be included
+// in other headers. This is still under study.
+
+namespace extra_detail {
+
+template<class T>
+struct guid_initializer
+{
+ void export_guid(mpl::false_) const {
+ // generates the statically-initialized objects whose constructors
+ // register the information allowing serialization of T objects
+ // through pointers to their base classes.
+ instantiate_ptr_serialization((T*)0, 0, adl_tag());
+ }
+ void export_guid(mpl::true_) const {
+ }
+ guid_initializer const & export_guid() const {
+ BOOST_STATIC_WARNING(boost::is_polymorphic< T >::value);
+ // note: exporting an abstract base class will have no effect
+ // and cannot be used to instantitiate serialization code
+ // (one might be using this in a DLL to instantiate code)
+ //BOOST_STATIC_WARNING(! boost::serialization::is_abstract< T >::value);
+ export_guid(boost::serialization::is_abstract< T >());
+ return *this;
+ }
+};
+
+template<typename T>
+struct init_guid;
+
+} // anonymous
+} // namespace detail
+} // namespace archive
+} // namespace boost
+
+#define BOOST_CLASS_EXPORT_IMPLEMENT(T) \
+ namespace boost { \
+ namespace archive { \
+ namespace detail { \
+ namespace extra_detail { \
+ template<> \
+ struct init_guid< T > { \
+ static guid_initializer< T > const & g; \
+ }; \
+ guid_initializer< T > const & init_guid< T >::g = \
+ ::boost::serialization::singleton< \
+ guid_initializer< T > \
+ >::get_mutable_instance().export_guid(); \
+ }}}} \
+/**/
+
+#define BOOST_CLASS_EXPORT_KEY2(T, K) \
+namespace boost { \
+namespace serialization { \
+template<> \
+struct guid_defined< T > : boost::mpl::true_ {}; \
+template<> \
+inline const char * guid< T >(){ \
+ return K; \
+} \
+} /* serialization */ \
+} /* boost */ \
+/**/
+
+#define BOOST_CLASS_EXPORT_KEY(T) \
+ BOOST_CLASS_EXPORT_KEY2(T, BOOST_PP_STRINGIZE(T)) \
+/**/
+
+#define BOOST_CLASS_EXPORT_GUID(T, K) \
+BOOST_CLASS_EXPORT_KEY2(T, K) \
+BOOST_CLASS_EXPORT_IMPLEMENT(T) \
+/**/
+
+#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3205))
+
+// CodeWarrior fails to construct static members of class templates
+// when they are instantiated from within templates, so on that
+// compiler we ask users to specifically register base/derived class
+// relationships for exported classes. On all other compilers, use of
+// this macro is entirely optional.
+# define BOOST_SERIALIZATION_MWERKS_BASE_AND_DERIVED(Base,Derived) \
+namespace { \
+ static int BOOST_PP_CAT(boost_serialization_mwerks_init_, __LINE__) = \
+ (::boost::archive::detail::instantiate_ptr_serialization((Derived*)0,0), 3); \
+ static int BOOST_PP_CAT(boost_serialization_mwerks_init2_, __LINE__) = ( \
+ ::boost::serialization::void_cast_register((Derived*)0,(Base*)0) \
+ , 3); \
+}
+
+#else
+
+# define BOOST_SERIALIZATION_MWERKS_BASE_AND_DERIVED(Base,Derived)
+
+#endif
+
+// check for unnecessary export. T isn't polymorphic so there is no
+// need to export it.
+#define BOOST_CLASS_EXPORT_CHECK(T) \
+ BOOST_STATIC_WARNING( \
+ boost::is_polymorphic<U>::value \
+ ); \
+ /**/
+
+// the default exportable class identifier is the class name
+// the default list of archives types for which code id generated
+// are the originally included with this serialization system
+#define BOOST_CLASS_EXPORT(T) \
+ BOOST_CLASS_EXPORT_GUID( \
+ T, \
+ BOOST_PP_STRINGIZE(T) \
+ ) \
+ /**/
+
+#endif // BOOST_SERIALIZATION_EXPORT_HPP
+