1#ifndef BOOST_ARCHIVE_BASIC_XML_IARCHIVE_HPP
2#define BOOST_ARCHIVE_BASIC_XML_IARCHIVE_HPP
3
4// MS compatible compilers support #pragma once
5#if defined(_MSC_VER)
6# pragma once
7#endif
8
9/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
10// basic_xml_iarchive.hpp
11
12// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
13// Use, modification and distribution is subject to the Boost Software
14// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
15// http://www.boost.org/LICENSE_1_0.txt)
16
17// See http://www.boost.org for updates, documentation, and revision history.
18
19#include <boost/config.hpp>
20#include <boost/mpl/assert.hpp>
21
22#include <boost/archive/detail/common_iarchive.hpp>
23#include <boost/serialization/nvp.hpp>
24#include <boost/serialization/string.hpp>
25
26#include <boost/archive/detail/abi_prefix.hpp> // must be the last header
27
28#ifdef BOOST_MSVC
29# pragma warning(push)
30# pragma warning(disable : 4511 4512)
31#endif
32
33namespace boost {
34namespace archive {
35
36namespace detail {
37 template<class Archive> class interface_iarchive;
38} // namespace detail
39
40/////////////////////////////////////////////////////////////////////////
41// class basic_xml_iarchive - read serialized objects from a input text stream
42template<class Archive>
43class BOOST_SYMBOL_VISIBLE basic_xml_iarchive :
44 public detail::common_iarchive<Archive>
45{
46 unsigned int depth;
47#ifdef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
48public:
49#else
50protected:
51 friend class detail::interface_iarchive<Archive>;
52#endif
53 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
54 load_start(const char *name);
55 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
56 load_end(const char *name);
57
58 // Anything not an attribute and not a name-value pair is an
59 // should be trapped here.
60 template<class T>
61 void load_override(T & t)
62 {
63 // If your program fails to compile here, its most likely due to
64 // not specifying an nvp wrapper around the variable to
65 // be serialized.
66 BOOST_MPL_ASSERT((serialization::is_wrapper< T >));
67 this->detail_common_iarchive::load_override(t);
68 }
69
70 // Anything not an attribute - see below - should be a name value
71 // pair and be processed here
72 typedef detail::common_iarchive<Archive> detail_common_iarchive;
73 template<class T>
74 void load_override(
75 const boost::serialization::nvp< T > & t
76 ){
77 this->This()->load_start(t.name());
78 this->detail_common_iarchive::load_override(t.value());
79 this->This()->load_end(t.name());
80 }
81
82 // specific overrides for attributes - handle as
83 // primitives. These are not name-value pairs
84 // so they have to be intercepted here and passed on to load.
85 // although the class_id is included in the xml text file in order
86 // to make the file self describing, it isn't used when loading
87 // an xml archive. So we can skip it here. Note: we MUST override
88 // it otherwise it will be loaded as a normal primitive w/o tag and
89 // leaving the archive in an undetermined state
90 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
91 load_override(class_id_type & t);
92 void load_override(class_id_optional_type & /* t */){}
93 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
94 load_override(object_id_type & t);
95 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
96 load_override(version_type & t);
97 BOOST_ARCHIVE_OR_WARCHIVE_DECL void
98 load_override(tracking_type & t);
99 // class_name_type can't be handled here as it depends upon the
100 // char type used by the stream. So require the derived implementation
101 // handle this.
102 // void load_override(class_name_type & t);
103
104 BOOST_ARCHIVE_OR_WARCHIVE_DECL
105 basic_xml_iarchive(unsigned int flags);
106 BOOST_ARCHIVE_OR_WARCHIVE_DECL
107 ~basic_xml_iarchive() BOOST_OVERRIDE;
108};
109
110} // namespace archive
111} // namespace boost
112
113#ifdef BOOST_MSVC
114#pragma warning(pop)
115#endif
116
117#include <boost/archive/detail/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
118
119#endif // BOOST_ARCHIVE_BASIC_XML_IARCHIVE_HPP
120

source code of boost/libs/serialization/include/boost/archive/basic_xml_iarchive.hpp