1/* Copyright 2006-2023 Joaquin M Lopez Munoz.
2 * Distributed under the Boost Software License, Version 1.0.
3 * (See accompanying file LICENSE_1_0.txt or copy at
4 * http://www.boost.org/LICENSE_1_0.txt)
5 *
6 * See http://www.boost.org/libs/flyweight for library home page.
7 */
8
9#ifndef BOOST_FLYWEIGHT_SERIALIZE_HPP
10#define BOOST_FLYWEIGHT_SERIALIZE_HPP
11
12#if defined(_MSC_VER)&&(_MSC_VER>=1200)
13#pragma once
14#endif
15
16#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
17#include <boost/flyweight/flyweight_fwd.hpp>
18#include <boost/flyweight/detail/archive_constructed.hpp>
19#include <boost/flyweight/detail/serialization_helper.hpp>
20#include <boost/core/serialization.hpp>
21#include <boost/throw_exception.hpp>
22#include <memory>
23#include <stdexcept>
24
25/* Serialization routines for flyweight<T>.
26 */
27
28namespace boost{
29
30namespace flyweights{
31
32template<
33 class Archive,
34 typename T,typename Arg1,typename Arg2,typename Arg3
35>
36inline void serialize(
37 Archive& ar,::boost::flyweights::flyweight<T,Arg1,Arg2,Arg3>& f,
38 const unsigned int version)
39{
40 core::split_free(ar,f,version);
41}
42
43template<
44 class Archive,
45 typename T,typename Arg1,typename Arg2,typename Arg3
46>
47void save(
48 Archive& ar,const ::boost::flyweights::flyweight<T,Arg1,Arg2,Arg3>& f,
49 const unsigned int /*version*/)
50{
51 typedef ::boost::flyweights::flyweight<T,Arg1,Arg2,Arg3> flyweight;
52 typedef ::boost::flyweights::detail::save_helper<flyweight> helper;
53 typedef typename helper::size_type size_type;
54
55 helper& hlp=ar.template get_helper<helper>();
56
57 size_type n=hlp.find(f);
58 ar<<make_nvp("item",n);
59 if(n==hlp.size()){
60 ar<<make_nvp("key",f.get_key());
61 hlp.push_back(f);
62 }
63}
64
65template<
66 class Archive,
67 typename T,typename Arg1,typename Arg2,typename Arg3
68>
69void load(
70 Archive& ar,::boost::flyweights::flyweight<T,Arg1,Arg2,Arg3>& f,
71 const unsigned int version)
72{
73 typedef ::boost::flyweights::flyweight<T,Arg1,Arg2,Arg3> flyweight;
74 typedef typename flyweight::key_type key_type;
75 typedef ::boost::flyweights::detail::load_helper<flyweight> helper;
76 typedef typename helper::size_type size_type;
77
78 helper& hlp=ar.template get_helper<helper>();
79
80 size_type n=0;
81 ar>>make_nvp("item",n);
82 if(n>hlp.size()){
83 throw_exception(e: std::runtime_error("Invalid or corrupted archive"));
84 }
85 else if(n==hlp.size()){
86 ::boost::flyweights::detail::archive_constructed<key_type> k(
87 "key",ar,version);
88 hlp.push_back(flyweight(k.get()));
89 }
90 f=hlp[n];
91}
92
93} /* namespace flyweights */
94
95} /* namespace boost */
96
97#endif
98

source code of boost/libs/flyweight/include/boost/flyweight/serialize.hpp