boost/archive/basic_xml_iarchive.hpp
#ifndef BOOST_ARCHIVE_BASIC_XML_IARCHIVE_HPP
#define BOOST_ARCHIVE_BASIC_XML_IARCHIVE_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// basic_xml_iarchive.hpp
// (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.
#include <string>
#include <boost/config.hpp>
#include <boost/pfto.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/archive/detail/interface_iarchive.hpp>
#include <boost/archive/detail/common_iarchive.hpp>
#include <boost/serialization/nvp.hpp>
#include <boost/serialization/string.hpp> // makes strings prmitive
namespace boost {
namespace archive {
/////////////////////////////////////////////////////////////////////////
// class xml_iarchive - read serialized objects from a input text stream
template<class Archive>
class basic_xml_iarchive : public detail::common_iarchive<Archive>
{
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
public:
#elif defined(BOOST_MSVC)
// for some inexplicable reason insertion of "class" generates compile erro
// on msvc 7.1
friend detail::interface_iarchive<Archive>;
protected:
#else
friend class detail::interface_iarchive<Archive>;
protected:
#endif
bool header;
bool no_checking;
unsigned int depth;
void load_start(const char *name);
void load_end(const char *name);
// Anything not an attribute and not a name-value pair is an
// should be trapped here.
template<class T>
void load_override(T & t, BOOST_PFTO int)
{
// If your program fails to compile here, its most likely due to
// not specifying an nvp wrapper around the variable to
// be serialized.
BOOST_STATIC_ASSERT(0 == sizeof(T));
}
// Anything not an attribute - see below - should be a name value
// pair and be processed here
template<class T>
void load_override(boost::serialization::nvp<T> & t, int)
{
load_start(t.name());
archive::load(* this->This(), t.value());
load_end(t.name());
}
// specific overrides for attributes - handle as
// primitives. These are not name-value pairs
// so they have to be intercepted here and passed on to load.
// although the class_id is included in the xml text file in order
// to make the file self describing, it isn't used when loading
// an xml archive. So we can skip it here. Note: we MUST override
// it otherwise it will be loaded as a normal primitive w/o tag and
// leaving the archive in an undetermined state
void load_override(class_id_optional_type & /* t */, int){}
void load_override(object_id_type & t, int);
void load_override(version_type & t, int);
void load_override(class_id_type & t, int);
void load_override(tracking_type & t, int);
// class_name_type can't be handled here as it depends upon the
// char type used by the stream. So require the derived implementation
// handle this.
// void load_override(class_name_type & t, int);
basic_xml_iarchive(unsigned int flags = 0) :
header(false),
no_checking(false),
depth(0)
{}
};
} // namespace archive
} // namespace boost
#endif // BOOST_ARCHIVE_BASIC_XML_IARCHIVE_HPP