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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // | |
3 | // (C) Copyright Ion Gaztanaga 2006-2014 | |
4 | // | |
5 | // Distributed under the Boost Software License, Version 1.0. | |
6 | // (See accompanying file LICENSE_1_0.txt or copy at | |
7 | // http://www.boost.org/LICENSE_1_0.txt) | |
8 | // | |
9 | // See http://www.boost.org/libs/intrusive for documentation. | |
10 | // | |
11 | ///////////////////////////////////////////////////////////////////////////// | |
12 | ||
13 | #ifndef BOOST_INTRUSIVE_DETAIL_HOOK_TRAITS_HPP | |
14 | #define BOOST_INTRUSIVE_DETAIL_HOOK_TRAITS_HPP | |
15 | ||
16 | #ifndef BOOST_CONFIG_HPP | |
17 | # include <boost/config.hpp> | |
18 | #endif | |
19 | ||
20 | #if defined(BOOST_HAS_PRAGMA_ONCE) | |
21 | # pragma once | |
22 | #endif | |
23 | ||
24 | #include <boost/intrusive/detail/workaround.hpp> | |
25 | #include <boost/intrusive/pointer_traits.hpp> | |
26 | #include <boost/intrusive/detail/parent_from_member.hpp> | |
27 | #include <boost/intrusive/link_mode.hpp> | |
28 | #include <boost/intrusive/detail/mpl.hpp> | |
29 | #include <boost/intrusive/detail/to_raw_pointer.hpp> | |
30 | #include <boost/intrusive/detail/node_holder.hpp> | |
31 | ||
32 | namespace boost { | |
33 | namespace intrusive { | |
34 | ||
35 | template<class T, class NodePtr, class Tag, unsigned int Type> | |
36 | struct bhtraits_base | |
37 | { | |
38 | public: | |
39 | typedef NodePtr node_ptr; | |
40 | typedef typename pointer_traits<node_ptr>::element_type node; | |
41 | typedef node_holder<node, Tag, Type> node_holder_type; | |
42 | typedef T value_type; | |
43 | typedef typename pointer_traits<node_ptr>:: | |
44 | template rebind_pointer<const node>::type const_node_ptr; | |
45 | typedef typename pointer_traits<node_ptr>:: | |
46 | template rebind_pointer<T>::type pointer; | |
47 | typedef typename pointer_traits<node_ptr>:: | |
48 | template rebind_pointer<const T>::type const_pointer; | |
49 | //typedef typename pointer_traits<pointer>::reference reference; | |
50 | //typedef typename pointer_traits<const_pointer>::reference const_reference; | |
51 | typedef T & reference; | |
52 | typedef const T & const_reference; | |
53 | typedef node_holder_type & node_holder_reference; | |
54 | typedef const node_holder_type & const_node_holder_reference; | |
55 | typedef node& node_reference; | |
56 | typedef const node & const_node_reference; | |
57 | ||
58 | BOOST_INTRUSIVE_FORCEINLINE static pointer to_value_ptr(const node_ptr & n) | |
59 | { | |
60 | return pointer_traits<pointer>::pointer_to | |
61 | (static_cast<reference>(static_cast<node_holder_reference>(*n))); | |
62 | } | |
63 | ||
64 | BOOST_INTRUSIVE_FORCEINLINE static const_pointer to_value_ptr(const const_node_ptr & n) | |
65 | { | |
66 | return pointer_traits<const_pointer>::pointer_to | |
67 | (static_cast<const_reference>(static_cast<const_node_holder_reference>(*n))); | |
68 | } | |
69 | ||
70 | BOOST_INTRUSIVE_FORCEINLINE static node_ptr to_node_ptr(reference value) | |
71 | { | |
72 | return pointer_traits<node_ptr>::pointer_to | |
73 | (static_cast<node_reference>(static_cast<node_holder_reference>(value))); | |
74 | } | |
75 | ||
76 | BOOST_INTRUSIVE_FORCEINLINE static const_node_ptr to_node_ptr(const_reference value) | |
77 | { | |
78 | return pointer_traits<const_node_ptr>::pointer_to | |
79 | (static_cast<const_node_reference>(static_cast<const_node_holder_reference>(value))); | |
80 | } | |
81 | }; | |
82 | ||
83 | template<class T, class NodeTraits, link_mode_type LinkMode, class Tag, unsigned int Type> | |
84 | struct bhtraits | |
85 | : public bhtraits_base<T, typename NodeTraits::node_ptr, Tag, Type> | |
86 | { | |
87 | static const link_mode_type link_mode = LinkMode; | |
88 | typedef NodeTraits node_traits; | |
89 | }; | |
90 | ||
91 | ||
92 | template<class T, class Hook, Hook T::* P> | |
93 | struct mhtraits | |
94 | { | |
95 | public: | |
96 | typedef Hook hook_type; | |
97 | typedef typename hook_type::hooktags::node_traits node_traits; | |
98 | typedef typename node_traits::node node; | |
99 | typedef T value_type; | |
100 | typedef typename node_traits::node_ptr node_ptr; | |
101 | typedef typename node_traits::const_node_ptr const_node_ptr; | |
102 | typedef typename pointer_traits<node_ptr>:: | |
103 | template rebind_pointer<T>::type pointer; | |
104 | typedef typename pointer_traits<node_ptr>:: | |
105 | template rebind_pointer<const T>::type const_pointer; | |
106 | typedef T & reference; | |
107 | typedef const T & const_reference; | |
108 | typedef node& node_reference; | |
109 | typedef const node & const_node_reference; | |
110 | typedef hook_type& hook_reference; | |
111 | typedef const hook_type & const_hook_reference; | |
112 | ||
113 | static const link_mode_type link_mode = Hook::hooktags::link_mode; | |
114 | ||
115 | BOOST_INTRUSIVE_FORCEINLINE static node_ptr to_node_ptr(reference value) | |
116 | { | |
117 | return pointer_traits<node_ptr>::pointer_to | |
118 | (static_cast<node_reference>(static_cast<hook_reference>(value.*P))); | |
119 | } | |
120 | ||
121 | BOOST_INTRUSIVE_FORCEINLINE static const_node_ptr to_node_ptr(const_reference value) | |
122 | { | |
123 | return pointer_traits<const_node_ptr>::pointer_to | |
124 | (static_cast<const_node_reference>(static_cast<const_hook_reference>(value.*P))); | |
125 | } | |
126 | ||
127 | BOOST_INTRUSIVE_FORCEINLINE static pointer to_value_ptr(const node_ptr & n) | |
128 | { | |
129 | return pointer_traits<pointer>::pointer_to | |
130 | (*detail::parent_from_member<T, Hook> | |
131 | (static_cast<Hook*>(boost::intrusive::detail::to_raw_pointer(n)), P)); | |
132 | } | |
133 | ||
134 | BOOST_INTRUSIVE_FORCEINLINE static const_pointer to_value_ptr(const const_node_ptr & n) | |
135 | { | |
136 | return pointer_traits<const_pointer>::pointer_to | |
137 | (*detail::parent_from_member<T, Hook> | |
138 | (static_cast<const Hook*>(boost::intrusive::detail::to_raw_pointer(n)), P)); | |
139 | } | |
140 | }; | |
141 | ||
142 | ||
143 | template<class Functor> | |
144 | struct fhtraits | |
145 | { | |
146 | public: | |
147 | typedef typename Functor::hook_type hook_type; | |
148 | typedef typename Functor::hook_ptr hook_ptr; | |
149 | typedef typename Functor::const_hook_ptr const_hook_ptr; | |
150 | typedef typename hook_type::hooktags::node_traits node_traits; | |
151 | typedef typename node_traits::node node; | |
152 | typedef typename Functor::value_type value_type; | |
153 | typedef typename node_traits::node_ptr node_ptr; | |
154 | typedef typename node_traits::const_node_ptr const_node_ptr; | |
155 | typedef typename pointer_traits<node_ptr>:: | |
156 | template rebind_pointer<value_type>::type pointer; | |
157 | typedef typename pointer_traits<node_ptr>:: | |
158 | template rebind_pointer<const value_type>::type const_pointer; | |
159 | typedef value_type & reference; | |
160 | typedef const value_type & const_reference; | |
161 | static const link_mode_type link_mode = hook_type::hooktags::link_mode; | |
162 | ||
163 | static node_ptr to_node_ptr(reference value) | |
164 | { return static_cast<node*>(boost::intrusive::detail::to_raw_pointer(Functor::to_hook_ptr(value))); } | |
165 | ||
166 | static const_node_ptr to_node_ptr(const_reference value) | |
167 | { return static_cast<const node*>(boost::intrusive::detail::to_raw_pointer(Functor::to_hook_ptr(value))); } | |
168 | ||
169 | static pointer to_value_ptr(const node_ptr & n) | |
170 | { return Functor::to_value_ptr(to_hook_ptr(n)); } | |
171 | ||
172 | static const_pointer to_value_ptr(const const_node_ptr & n) | |
173 | { return Functor::to_value_ptr(to_hook_ptr(n)); } | |
174 | ||
175 | private: | |
176 | static hook_ptr to_hook_ptr(const node_ptr & n) | |
177 | { return hook_ptr(&*static_cast<hook_type*>(&*n)); } | |
178 | ||
179 | static const_hook_ptr to_hook_ptr(const const_node_ptr & n) | |
180 | { return const_hook_ptr(&*static_cast<const hook_type*>(&*n)); } | |
181 | }; | |
182 | ||
183 | ||
184 | } //namespace intrusive | |
185 | } //namespace boost | |
186 | ||
187 | #endif //BOOST_INTRUSIVE_DETAIL_HOOK_TRAITS_HPP |