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1 | |
2 | // (C) Copyright Edward Diener 2011,2012,2013 | |
3 | // Use, modification and distribution are subject to the Boost Software License, | |
4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
5 | // http://www.boost.org/LICENSE_1_0.txt). | |
6 | ||
7 | #if !defined(BOOST_TTI_DETAIL_TEMPLATE_PARAMS_HPP) | |
8 | #define BOOST_TTI_DETAIL_TEMPLATE_PARAMS_HPP | |
9 | ||
10 | #include <boost/config.hpp> | |
11 | #include <boost/mpl/bool.hpp> | |
12 | #include <boost/mpl/eval_if.hpp> | |
13 | #include <boost/mpl/has_xxx.hpp> | |
14 | #include <boost/preprocessor/arithmetic/add.hpp> | |
15 | #include <boost/preprocessor/arithmetic/sub.hpp> | |
16 | #include <boost/preprocessor/array/elem.hpp> | |
17 | #include <boost/preprocessor/cat.hpp> | |
18 | #include <boost/preprocessor/punctuation/comma_if.hpp> | |
19 | #include <boost/preprocessor/repetition/repeat.hpp> | |
20 | #include <boost/preprocessor/repetition/enum.hpp> | |
21 | #include <boost/preprocessor/array/enum.hpp> | |
22 | #include <boost/preprocessor/array/size.hpp> | |
23 | #include <boost/type_traits/is_class.hpp> | |
24 | ||
25 | #if !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE) | |
26 | ||
27 | #define BOOST_TTI_DETAIL_TEMPLATE_PARAMETERS(z,n,args) \ | |
28 | BOOST_PP_ARRAY_ELEM(BOOST_PP_ADD(4,n),args) \ | |
29 | /**/ | |
30 | ||
31 | #define BOOST_TTI_DETAIL_HAS_MEMBER_IMPLEMENTATION(args,introspect_macro) \ | |
32 | template \ | |
33 | < \ | |
34 | typename BOOST_TTI_DETAIL_TP_T, \ | |
35 | typename BOOST_TTI_DETAIL_TP_FALLBACK_ \ | |
36 | = boost::mpl::bool_< BOOST_PP_ARRAY_ELEM(3, args) > \ | |
37 | > \ | |
38 | struct BOOST_PP_ARRAY_ELEM(0, args) \ | |
39 | { \ | |
40 | private: \ | |
41 | introspect_macro(args) \ | |
42 | public: \ | |
43 | static const bool value \ | |
44 | = BOOST_MPL_HAS_MEMBER_INTROSPECTION_NAME(args)< BOOST_TTI_DETAIL_TP_T >::value; \ | |
45 | typedef typename BOOST_MPL_HAS_MEMBER_INTROSPECTION_NAME(args) \ | |
46 | < \ | |
47 | BOOST_TTI_DETAIL_TP_T \ | |
48 | >::type type; \ | |
49 | }; \ | |
50 | /**/ | |
51 | ||
52 | #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1400) | |
53 | ||
54 | #define BOOST_TTI_DETAIL_HAS_MEMBER_MULTI_SUBSTITUTE(z,n,args) \ | |
55 | template \ | |
56 | < \ | |
57 | template \ | |
58 | < \ | |
59 | BOOST_PP_ENUM_ ## z \ | |
60 | ( \ | |
61 | BOOST_PP_SUB \ | |
62 | ( \ | |
63 | BOOST_PP_ARRAY_SIZE(args), \ | |
64 | 4 \ | |
65 | ), \ | |
66 | BOOST_TTI_DETAIL_TEMPLATE_PARAMETERS, \ | |
67 | args \ | |
68 | ) \ | |
69 | > \ | |
70 | class BOOST_TTI_DETAIL_TM_V \ | |
71 | > \ | |
72 | struct BOOST_MPL_HAS_MEMBER_INTROSPECTION_SUBSTITUTE_NAME(args, n) \ | |
73 | { \ | |
74 | }; \ | |
75 | /**/ | |
76 | ||
77 | #define BOOST_TTI_DETAIL_HAS_MEMBER_SUBSTITUTE(args) \ | |
78 | BOOST_PP_REPEAT \ | |
79 | ( \ | |
80 | BOOST_PP_ARRAY_ELEM(2, args), \ | |
81 | BOOST_TTI_DETAIL_HAS_MEMBER_MULTI_SUBSTITUTE, \ | |
82 | args \ | |
83 | ) \ | |
84 | /**/ | |
85 | ||
86 | #define BOOST_TTI_DETAIL_HAS_MEMBER_INTROSPECT(args) \ | |
87 | template< typename U > \ | |
88 | struct BOOST_MPL_HAS_MEMBER_INTROSPECTION_NAME(args) \ | |
89 | { \ | |
90 | BOOST_TTI_DETAIL_HAS_MEMBER_SUBSTITUTE(args) \ | |
91 | BOOST_MPL_HAS_MEMBER_REJECT(args, BOOST_PP_NIL) \ | |
92 | BOOST_MPL_HAS_MEMBER_ACCEPT(args, BOOST_PP_NIL) \ | |
93 | BOOST_STATIC_CONSTANT \ | |
94 | ( \ | |
95 | bool, value = BOOST_MPL_HAS_MEMBER_TEST(args) \ | |
96 | ); \ | |
97 | typedef boost::mpl::bool_< value > type; \ | |
98 | }; \ | |
99 | /**/ | |
100 | ||
101 | #define BOOST_TTI_DETAIL_HAS_MEMBER_WITH_FUNCTION_SFINAE(args) \ | |
102 | BOOST_TTI_DETAIL_HAS_MEMBER_IMPLEMENTATION \ | |
103 | ( \ | |
104 | args, \ | |
105 | BOOST_TTI_DETAIL_HAS_MEMBER_INTROSPECT \ | |
106 | ) \ | |
107 | /**/ | |
108 | ||
109 | #else // !!BOOST_WORKAROUND(BOOST_MSVC, <= 1400) | |
110 | ||
111 | #define BOOST_TTI_DETAIL_HAS_MEMBER_MULTI_SUBSTITUTE_WITH_TEMPLATE_SFINAE(z,n,args) \ | |
112 | template \ | |
113 | < \ | |
114 | template \ | |
115 | < \ | |
116 | BOOST_PP_ENUM_ ## z \ | |
117 | ( \ | |
118 | BOOST_PP_SUB \ | |
119 | ( \ | |
120 | BOOST_PP_ARRAY_SIZE(args), \ | |
121 | 4 \ | |
122 | ), \ | |
123 | BOOST_TTI_DETAIL_TEMPLATE_PARAMETERS, \ | |
124 | args \ | |
125 | ) \ | |
126 | > \ | |
127 | class BOOST_TTI_DETAIL_TM_U \ | |
128 | > \ | |
129 | struct BOOST_MPL_HAS_MEMBER_INTROSPECTION_SUBSTITUTE_NAME_WITH_TEMPLATE_SFINAE \ | |
130 | ( \ | |
131 | args, \ | |
132 | n \ | |
133 | ) \ | |
134 | { \ | |
135 | typedef \ | |
136 | BOOST_MPL_HAS_MEMBER_INTROSPECTION_SUBSTITUTE_TAG_NAME(args) \ | |
137 | type; \ | |
138 | }; \ | |
139 | /**/ | |
140 | ||
141 | #define BOOST_TTI_DETAIL_HAS_MEMBER_SUBSTITUTE_WITH_TEMPLATE_SFINAE(args) \ | |
142 | typedef void \ | |
143 | BOOST_MPL_HAS_MEMBER_INTROSPECTION_SUBSTITUTE_TAG_NAME(args); \ | |
144 | BOOST_PP_REPEAT \ | |
145 | ( \ | |
146 | BOOST_PP_ARRAY_ELEM(2, args), \ | |
147 | BOOST_TTI_DETAIL_HAS_MEMBER_MULTI_SUBSTITUTE_WITH_TEMPLATE_SFINAE, \ | |
148 | args \ | |
149 | ) \ | |
150 | /**/ | |
151 | ||
152 | #define BOOST_TTI_DETAIL_HAS_MEMBER_INTROSPECT_WITH_TEMPLATE_SFINAE(args) \ | |
153 | BOOST_MPL_HAS_MEMBER_REJECT_WITH_TEMPLATE_SFINAE(args,BOOST_PP_NIL) \ | |
154 | BOOST_MPL_HAS_MEMBER_ACCEPT_WITH_TEMPLATE_SFINAE(args,BOOST_PP_NIL) \ | |
155 | template< typename BOOST_TTI_DETAIL_TP_U > \ | |
156 | struct BOOST_MPL_HAS_MEMBER_INTROSPECTION_NAME(args) \ | |
157 | : BOOST_MPL_HAS_MEMBER_INTROSPECTION_TEST_NAME(args)< BOOST_TTI_DETAIL_TP_U > { \ | |
158 | }; \ | |
159 | /**/ | |
160 | ||
161 | #define BOOST_TTI_DETAIL_HAS_MEMBER_WITH_TEMPLATE_SFINAE(args) \ | |
162 | BOOST_TTI_DETAIL_HAS_MEMBER_SUBSTITUTE_WITH_TEMPLATE_SFINAE \ | |
163 | ( \ | |
164 | args \ | |
165 | ) \ | |
166 | BOOST_TTI_DETAIL_HAS_MEMBER_IMPLEMENTATION \ | |
167 | ( \ | |
168 | args, \ | |
169 | BOOST_TTI_DETAIL_HAS_MEMBER_INTROSPECT_WITH_TEMPLATE_SFINAE \ | |
170 | ) \ | |
171 | /**/ | |
172 | ||
173 | #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1400) | |
174 | ||
175 | #else // defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE) | |
176 | ||
177 | #define BOOST_TTI_DETAIL_SAME(trait,name) \ | |
178 | BOOST_MPL_HAS_XXX_TEMPLATE_NAMED_DEF \ | |
179 | ( \ | |
180 | trait, \ | |
181 | name, \ | |
182 | false \ | |
183 | ) \ | |
184 | /**/ | |
185 | ||
186 | #define BOOST_TTI_DETAIL_TRAIT_CALL_HAS_TEMPLATE_CHECK_PARAMS(trait,name,tp) \ | |
187 | BOOST_TTI_DETAIL_SAME(trait,name) \ | |
188 | /**/ | |
189 | ||
190 | #endif // !BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE | |
191 | ||
192 | #define BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS_OP(trait,name,tpArray) \ | |
193 | BOOST_TTI_DETAIL_TRAIT_CALL_HAS_TEMPLATE_CHECK_PARAMS(BOOST_PP_CAT(trait,_detail),name,tpArray) \ | |
194 | template<class BOOST_TTI_DETAIL_TP_T> \ | |
195 | struct BOOST_PP_CAT(trait,_detail_cp_op) : \ | |
196 | BOOST_PP_CAT(trait,_detail)<BOOST_TTI_DETAIL_TP_T> \ | |
197 | { \ | |
198 | }; \ | |
199 | /**/ | |
200 | ||
201 | #define BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,tpArray) \ | |
202 | BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS_OP(trait,name,tpArray) \ | |
203 | template<class BOOST_TTI_DETAIL_TP_T> \ | |
204 | struct trait \ | |
205 | { \ | |
206 | typedef typename \ | |
92f5a8d4 TL |
207 | boost::mpl::eval_if \ |
208 | < \ | |
209 | boost::is_class<BOOST_TTI_DETAIL_TP_T>, \ | |
210 | BOOST_PP_CAT(trait,_detail_cp_op)<BOOST_TTI_DETAIL_TP_T>, \ | |
211 | boost::mpl::false_ \ | |
212 | >::type type; \ | |
7c673cae FG |
213 | BOOST_STATIC_CONSTANT(bool,value=type::value); \ |
214 | }; \ | |
215 | /**/ | |
216 | ||
217 | #if !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE) | |
218 | #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1400) | |
219 | ||
220 | #define BOOST_TTI_DETAIL_TRAIT_CALL_HAS_TEMPLATE_CHECK_PARAMS(trait,name,tpArray) \ | |
221 | BOOST_TTI_DETAIL_HAS_MEMBER_WITH_FUNCTION_SFINAE \ | |
222 | ( \ | |
223 | ( BOOST_PP_ADD(BOOST_PP_ARRAY_SIZE(tpArray),4), ( trait, name, 1, false, BOOST_PP_ARRAY_ENUM(tpArray) ) ) \ | |
224 | ) \ | |
225 | /**/ | |
226 | ||
227 | #else // BOOST_WORKAROUND(BOOST_MSVC, <= 1400) | |
228 | ||
229 | #define BOOST_TTI_DETAIL_TRAIT_CALL_HAS_TEMPLATE_CHECK_PARAMS(trait,name,tpArray) \ | |
230 | BOOST_TTI_DETAIL_HAS_MEMBER_WITH_TEMPLATE_SFINAE \ | |
231 | ( \ | |
232 | ( BOOST_PP_ADD(BOOST_PP_ARRAY_SIZE(tpArray),4), ( trait, name, 1, false, BOOST_PP_ARRAY_ENUM(tpArray) ) ) \ | |
233 | ) \ | |
234 | /**/ | |
235 | ||
236 | #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1400) | |
237 | #endif // !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE) | |
238 | ||
239 | #endif // BOOST_TTI_DETAIL_TEMPLATE_PARAMS_HPP |