1 | /* Copyright 2003-2013 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/multi_index for library home page. |
7 | */ |
8 | |
9 | #ifndef BOOST_MULTI_INDEX_DETAIL_NODE_TYPE_HPP |
10 | #define BOOST_MULTI_INDEX_DETAIL_NODE_TYPE_HPP |
11 | |
12 | #if defined(_MSC_VER) |
13 | #pragma once |
14 | #endif |
15 | |
16 | #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */ |
17 | #include <boost/detail/workaround.hpp> |
18 | #include <boost/mpl/bind.hpp> |
19 | #include <boost/mpl/reverse_iter_fold.hpp> |
20 | #include <boost/mpl/deref.hpp> |
21 | #include <boost/multi_index_container_fwd.hpp> |
22 | #include <boost/multi_index/detail/header_holder.hpp> |
23 | #include <boost/multi_index/detail/index_node_base.hpp> |
24 | #include <boost/multi_index/detail/is_index_list.hpp> |
25 | #include <boost/static_assert.hpp> |
26 | |
27 | namespace boost{ |
28 | |
29 | namespace multi_index{ |
30 | |
31 | namespace detail{ |
32 | |
33 | /* MPL machinery to construct the internal node type associated to an |
34 | * index list. |
35 | */ |
36 | |
37 | struct index_node_applier |
38 | { |
39 | template<typename IndexSpecifierIterator,typename Super> |
40 | struct apply |
41 | { |
42 | typedef typename mpl::deref<IndexSpecifierIterator>::type index_specifier; |
43 | typedef typename index_specifier:: |
44 | BOOST_NESTED_TEMPLATE node_class<Super>::type type; |
45 | }; |
46 | }; |
47 | |
48 | template<typename Value,typename IndexSpecifierList,typename Allocator> |
49 | struct multi_index_node_type |
50 | { |
51 | BOOST_STATIC_ASSERT(detail::is_index_list<IndexSpecifierList>::value); |
52 | |
53 | typedef typename mpl::reverse_iter_fold< |
54 | IndexSpecifierList, |
55 | index_node_base<Value,Allocator>, |
56 | mpl::bind2<index_node_applier,mpl::_2,mpl::_1> |
57 | >::type type; |
58 | }; |
59 | |
60 | } /* namespace multi_index::detail */ |
61 | |
62 | } /* namespace multi_index */ |
63 | |
64 | } /* namespace boost */ |
65 | |
66 | #endif |
67 |