1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2014-2014
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/intrusive for documentation.
//
/////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_INTRUSIVE_DETAIL_GET_VALUE_TRAITS_HPP
#define BOOST_INTRUSIVE_DETAIL_GET_VALUE_TRAITS_HPP
#ifndef BOOST_CONFIG_HPP
# include <boost/config.hpp>
#endif
#if defined(BOOST_HAS_PRAGMA_ONCE)
# pragma once
#endif
#include <boost/intrusive/detail/config_begin.hpp>
#include <boost/intrusive/detail/mpl.hpp>
#include <boost/intrusive/detail/hook_traits.hpp>
namespace boost {
namespace intrusive {
#ifndef BOOST_INTRUSIVE_DOXYGEN_INVOKED
template<class SupposedValueTraits>
struct is_default_hook_tag
{ static const bool value = false; };
namespace detail{
template <class T, class BaseHook>
struct concrete_hook_base_value_traits
{
typedef typename BaseHook::hooktags tags;
typedef bhtraits
< T
, typename tags::node_traits
, tags::link_mode
, typename tags::tag
, tags::type> type;
};
template <class BaseHook>
struct concrete_hook_base_value_traits<void, BaseHook>
{
typedef typename BaseHook::hooktags type;
};
template <class T, class AnyToSomeHook_ProtoValueTraits>
struct any_hook_base_value_traits
{
//AnyToSomeHook value_traits derive from a generic_hook
//The generic_hook is configured with any_node_traits
//and AnyToSomeHook::value_traits with the correct
//node traits for the container, so use node_traits
//from AnyToSomeHook_ProtoValueTraits and the rest of
//elements from the hooktags member of the generic_hook
typedef typename AnyToSomeHook_ProtoValueTraits::basic_hook_t basic_hook_t;
typedef typename pointer_rebind
< typename basic_hook_t::hooktags::node_traits::node_ptr
, void>::type void_pointer;
typedef typename AnyToSomeHook_ProtoValueTraits::template
node_traits_from_voidptr<void_pointer>::type node_traits;
typedef bhtraits
< T
, node_traits
, basic_hook_t::hooktags::link_mode
, typename basic_hook_t::hooktags::tag
, basic_hook_t::hooktags::type
> type;
};
template <class AnyToSomeHook_ProtoValueTraits>
struct any_hook_base_value_traits<void, AnyToSomeHook_ProtoValueTraits>
{
typedef typename AnyToSomeHook_ProtoValueTraits::basic_hook_t basic_hook_t;
typedef typename pointer_rebind
< typename basic_hook_t::hooktags::node_traits::node_ptr
, void>::type void_pointer;
struct type
{
typedef typename AnyToSomeHook_ProtoValueTraits::template
node_traits_from_voidptr<void_pointer>::type node_traits;
};
};
template<class MemberHook>
struct get_member_value_traits
{
typedef typename MemberHook::member_value_traits type;
};
BOOST_INTRUSIVE_INTERNAL_STATIC_BOOL_IS_TRUE(internal_any_hook, is_any_hook)
BOOST_INTRUSIVE_INTERNAL_STATIC_BOOL_IS_TRUE(internal_base_hook, hooktags::is_base_hook)
template <class T>
struct internal_member_value_traits
{
template <class U> static one test(...);
template <class U> static two test(typename U::member_value_traits* = 0);
static const bool value = sizeof(test<T>(0)) == sizeof(two);
};
template<class SupposedValueTraits, class T, bool = is_default_hook_tag<SupposedValueTraits>::value>
struct supposed_value_traits;
template<class T, class BaseHook, bool = internal_any_hook_bool_is_true<BaseHook>::value>
struct get_base_value_traits;
template<class SupposedValueTraits, class T, bool = internal_base_hook_bool_is_true<SupposedValueTraits>::value>
struct supposed_base_value_traits;
template<class SupposedValueTraits, bool = internal_member_value_traits<SupposedValueTraits>::value>
struct supposed_member_value_traits;
template<class SupposedValueTraits, bool = internal_any_hook_bool_is_true<SupposedValueTraits>::value>
struct any_or_concrete_value_traits;
//Base any hook
template<class T, class BaseHook>
struct get_base_value_traits<T, BaseHook, true>
: any_hook_base_value_traits<T, BaseHook>
{};
//Non-any base hook
template<class T, class BaseHook>
struct get_base_value_traits<T, BaseHook, false>
: concrete_hook_base_value_traits<T, BaseHook>
{};
//...It's a default hook
template<class SupposedValueTraits, class T>
struct supposed_value_traits<SupposedValueTraits, T, true>
{ typedef typename SupposedValueTraits::template apply<T>::type type; };
//...Not a default hook
template<class SupposedValueTraits, class T>
struct supposed_value_traits<SupposedValueTraits, T, false>
{ typedef SupposedValueTraits type; };
//...It's a base hook
template<class BaseHook, class T>
struct supposed_base_value_traits<BaseHook, T, true>
: get_base_value_traits<T, BaseHook>
{};
//...Not a base hook, try if it's a member or value_traits
template<class SupposedValueTraits, class T>
struct supposed_base_value_traits<SupposedValueTraits, T, false>
: supposed_member_value_traits<SupposedValueTraits>
{};
//...It's a member hook
template<class MemberHook>
struct supposed_member_value_traits<MemberHook, true>
: get_member_value_traits<MemberHook>
{};
//...Not a member hook
template<class SupposedValueTraits>
struct supposed_member_value_traits<SupposedValueTraits, false>
: any_or_concrete_value_traits<SupposedValueTraits>
{};
template<class AnyToSomeHook_ProtoValueTraits>
struct any_or_concrete_value_traits<AnyToSomeHook_ProtoValueTraits, true>
{
//A hook node (non-base, e.g.: member or other value traits
typedef typename AnyToSomeHook_ProtoValueTraits::basic_hook_t basic_hook_t;
typedef typename pointer_rebind
<typename basic_hook_t::node_ptr, void>::type void_pointer;
typedef typename AnyToSomeHook_ProtoValueTraits::template
node_traits_from_voidptr<void_pointer>::type any_node_traits;
struct type : basic_hook_t
{
typedef any_node_traits node_traits;
};
};
template<class SupposedValueTraits>
struct any_or_concrete_value_traits<SupposedValueTraits, false>
{
typedef SupposedValueTraits type;
};
////////////////////////////////////////
// get_value_traits / get_node_traits
////////////////////////////////////////
template<class T, class SupposedValueTraits>
struct get_value_traits
: supposed_base_value_traits<typename supposed_value_traits<SupposedValueTraits, T>::type, T>
{};
template<class SupposedValueTraits>
struct get_node_traits
{
typedef typename get_value_traits<void, SupposedValueTraits>::type::node_traits type;
};
} //namespace detail{
#endif //BOOST_INTRUSIVE_DOXYGEN_INVOKED
} //namespace intrusive {
} //namespace boost {
#include <boost/intrusive/detail/config_end.hpp>
#endif //#ifndef BOOST_INTRUSIVE_DETAIL_GET_VALUE_TRAITS_HPP
|
