archive/impl/basic_xml_iarchive.ipp

0001 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
0002 // basic_xml_iarchive.ipp:
0003
0004 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
0005 // Use, modification and distribution is subject to the Boost Software
0006 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0007 // http://www.boost.org/LICENSE_1_0.txt)
0008
0009 //  See http://www.boost.org for updates, documentation, and revision history.
0010
0011 #include <boost/assert.hpp>
0012 #include <cstddef> // NULL
0013 #include <cstring> // strlen
0014 #include <algorithm>
0015
0016 #include <boost/serialization/throw_exception.hpp>
0017 #include <boost/archive/xml_archive_exception.hpp>
0018 #include <boost/archive/basic_xml_iarchive.hpp>
0019 #include <boost/serialization/tracking.hpp>
0020
0021 namespace boost {
0022 namespace archive {
0023
0024 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
0025 // implementation of xml_text_archive
0026
0027 template<class Archive>
0028 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
0029 basic_xml_iarchive<Archive>::load_start(const char *name){
0030     // if there's no name
0031     if(NULL == name)
0032         return;
0033     bool result = this->This()->gimpl->parse_start_tag(this->This()->get_is());
0034     if(true != result){
0035         boost::serialization::throw_exception(
0036             archive_exception(archive_exception::input_stream_error)
0037         );
0038     }
0039     // don't check start tag at highest level
0040     ++depth;
0041 }
0042
0043 template<class Archive>
0044 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
0045 basic_xml_iarchive<Archive>::load_end(const char *name){
0046     // if there's no name
0047     if(NULL == name)
0048         return;
0049     bool result = this->This()->gimpl->parse_end_tag(this->This()->get_is());
0050     if(true != result){
0051         boost::serialization::throw_exception(
0052             archive_exception(archive_exception::input_stream_error)
0053         );
0054     }
0055
0056     // don't check start tag at highest level
0057     if(0 == --depth)
0058         return;
0059
0060     if(0 == (this->get_flags() & no_xml_tag_checking)){
0061         // double check that the tag matches what is expected - useful for debug
0062         std::size_t parameter_name_length = std::strlen(name);
0063         std::size_t object_name_length = this->This()->gimpl->rv.object_name.size();
0064
0065         if(parameter_name_length != object_name_length
0066         || ! std::equal(
0067                 this->This()->gimpl->rv.object_name.begin(),
0068                 this->This()->gimpl->rv.object_name.end(),
0069                 name
0070             )
0071         ){
0072             boost::serialization::throw_exception(
0073                 xml_archive_exception(
0074                     xml_archive_exception::xml_archive_tag_mismatch,
0075                     name
0076                 )
0077             );
0078         }
0079     }
0080 }
0081
0082 template<class Archive>
0083 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
0084 basic_xml_iarchive<Archive>::load_override(object_id_type & t){
0085     t = object_id_type(this->This()->gimpl->rv.object_id);
0086 }
0087
0088 template<class Archive>
0089 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
0090 basic_xml_iarchive<Archive>::load_override(version_type & t){
0091     t = version_type(this->This()->gimpl->rv.version);
0092 }
0093
0094 template<class Archive>
0095 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
0096 basic_xml_iarchive<Archive>::load_override(class_id_type & t){
0097     t = class_id_type(this->This()->gimpl->rv.class_id);
0098 }
0099
0100 template<class Archive>
0101 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
0102 basic_xml_iarchive<Archive>::load_override(tracking_type & t){
0103     t = this->This()->gimpl->rv.tracking_level;
0104 }
0105
0106 template<class Archive>
0107 BOOST_ARCHIVE_OR_WARCHIVE_DECL
0108 basic_xml_iarchive<Archive>::basic_xml_iarchive(unsigned int flags) :
0109     detail::common_iarchive<Archive>(flags),
0110     depth(0)
0111 {}
0112 template<class Archive>
0113 BOOST_ARCHIVE_OR_WARCHIVE_DECL
0114 basic_xml_iarchive<Archive>::~basic_xml_iarchive(){
0115 }
0116
0117 } // namespace archive
0118 } // namespace boost