Mercurial > hg > vamp-build-and-test
comparison DEPENDENCIES/generic/include/boost/signals2/detail/slot_template.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
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children | c530137014c0 |
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15:663ca0da4350 | 16:2665513ce2d3 |
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1 // Boost.Signals2 library | |
2 | |
3 // Copyright Frank Mori Hess 2007-2008. | |
4 // Copyright Timmo Stange 2007. | |
5 // Copyright Douglas Gregor 2001-2004. Use, modification and | |
6 // distribution is subject to the Boost Software License, Version | |
7 // 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
8 // http://www.boost.org/LICENSE_1_0.txt) | |
9 | |
10 // For more information, see http://www.boost.org | |
11 | |
12 // This file is included iteratively, and should not be protected from multiple inclusion | |
13 | |
14 #ifdef BOOST_NO_CXX11_VARIADIC_TEMPLATES | |
15 #define BOOST_SIGNALS2_NUM_ARGS BOOST_PP_ITERATION() | |
16 #else | |
17 #define BOOST_SIGNALS2_NUM_ARGS 1 | |
18 #endif | |
19 | |
20 | |
21 namespace boost | |
22 { | |
23 namespace signals2 | |
24 { | |
25 template<typename Signature, typename SlotFunction> class slot; | |
26 | |
27 // slot class template. | |
28 template<BOOST_SIGNALS2_SIGNATURE_TEMPLATE_DECL(BOOST_SIGNALS2_NUM_ARGS), | |
29 typename SlotFunction = BOOST_SIGNALS2_FUNCTION_N_DECL(BOOST_SIGNALS2_NUM_ARGS)> | |
30 class BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS); | |
31 | |
32 template<BOOST_SIGNALS2_SLOT_TEMPLATE_SPECIALIZATION_DECL(BOOST_SIGNALS2_NUM_ARGS)> | |
33 class BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS) BOOST_SIGNALS2_SLOT_TEMPLATE_SPECIALIZATION | |
34 : public slot_base, public detail::BOOST_SIGNALS2_STD_FUNCTIONAL_BASE(R) | |
35 | |
36 { | |
37 public: | |
38 template<BOOST_SIGNALS2_PREFIXED_SIGNATURE_TEMPLATE_DECL(BOOST_SIGNALS2_NUM_ARGS, Other), typename OtherSlotFunction> | |
39 friend class BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS); | |
40 | |
41 typedef SlotFunction slot_function_type; | |
42 typedef R result_type; | |
43 typedef typename mpl::identity<BOOST_SIGNALS2_SIGNATURE_FUNCTION_TYPE(BOOST_SIGNALS2_NUM_ARGS)>::type signature_type; | |
44 | |
45 #ifdef BOOST_NO_CXX11_VARIADIC_TEMPLATES | |
46 | |
47 // typedef Tn argn_type; | |
48 #define BOOST_SIGNALS2_MISC_STATEMENT(z, n, data) \ | |
49 typedef BOOST_PP_CAT(T, BOOST_PP_INC(n)) BOOST_PP_CAT(BOOST_PP_CAT(arg, BOOST_PP_INC(n)), _type); | |
50 BOOST_PP_REPEAT(BOOST_SIGNALS2_NUM_ARGS, BOOST_SIGNALS2_MISC_STATEMENT, ~) | |
51 #undef BOOST_SIGNALS2_MISC_STATEMENT | |
52 #if BOOST_SIGNALS2_NUM_ARGS == 1 | |
53 typedef arg1_type argument_type; | |
54 #elif BOOST_SIGNALS2_NUM_ARGS == 2 | |
55 typedef arg1_type first_argument_type; | |
56 typedef arg2_type second_argument_type; | |
57 #endif | |
58 | |
59 template<unsigned n> class arg : public | |
60 detail::BOOST_SIGNALS2_PREPROCESSED_ARG_N_TYPE_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS) | |
61 <n BOOST_SIGNALS2_PP_COMMA_IF(BOOST_SIGNALS2_NUM_ARGS) | |
62 BOOST_SIGNALS2_ARGS_TEMPLATE_INSTANTIATION(BOOST_SIGNALS2_NUM_ARGS)> | |
63 {}; | |
64 | |
65 BOOST_STATIC_CONSTANT(int, arity = BOOST_SIGNALS2_NUM_ARGS); | |
66 | |
67 #else // BOOST_NO_CXX11_VARIADIC_TEMPLATES | |
68 | |
69 template<unsigned n> class arg | |
70 { | |
71 public: | |
72 typedef typename detail::variadic_arg_type<n, Args...>::type type; | |
73 }; | |
74 BOOST_STATIC_CONSTANT(int, arity = sizeof...(Args)); | |
75 | |
76 #endif // BOOST_NO_CXX11_VARIADIC_TEMPLATES | |
77 | |
78 template<typename F> | |
79 BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)(const F& f) | |
80 { | |
81 init_slot_function(f); | |
82 } | |
83 // copy constructors | |
84 #ifdef BOOST_NO_CXX11_VARIADIC_TEMPLATES | |
85 template<BOOST_SIGNALS2_PREFIXED_SIGNATURE_TEMPLATE_DECL(BOOST_SIGNALS2_NUM_ARGS, Other), typename OtherSlotFunction> | |
86 BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)(const BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS) | |
87 <BOOST_SIGNALS2_PREFIXED_SIGNATURE_TEMPLATE_INSTANTIATION(BOOST_SIGNALS2_NUM_ARGS, Other), OtherSlotFunction> &other_slot): | |
88 slot_base(other_slot), _slot_function(other_slot._slot_function) | |
89 { | |
90 } | |
91 #endif | |
92 template<typename Signature, typename OtherSlotFunction> | |
93 BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)(const slot<Signature, OtherSlotFunction> &other_slot): | |
94 slot_base(other_slot), _slot_function(other_slot._slot_function) | |
95 { | |
96 } | |
97 // bind syntactic sugar | |
98 BOOST_SIGNALS2_SLOT_N_BINDING_CONSTRUCTORS | |
99 // invocation | |
100 R operator()(BOOST_SIGNALS2_SIGNATURE_FULL_ARGS(BOOST_SIGNALS2_NUM_ARGS)) | |
101 { | |
102 locked_container_type locked_objects = lock(); | |
103 return _slot_function(BOOST_SIGNALS2_SIGNATURE_ARG_NAMES(BOOST_SIGNALS2_NUM_ARGS)); | |
104 } | |
105 R operator()(BOOST_SIGNALS2_SIGNATURE_FULL_ARGS(BOOST_SIGNALS2_NUM_ARGS)) const | |
106 { | |
107 locked_container_type locked_objects = lock(); | |
108 return _slot_function(BOOST_SIGNALS2_SIGNATURE_ARG_NAMES(BOOST_SIGNALS2_NUM_ARGS)); | |
109 } | |
110 // tracking | |
111 BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track(const weak_ptr<void> &tracked) { | |
112 _tracked_objects.push_back(tracked); | |
113 return *this; | |
114 } | |
115 BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track(const signal_base &signal) | |
116 { | |
117 track_signal(signal); | |
118 return *this; | |
119 } | |
120 BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track(const slot_base &slot) | |
121 { | |
122 tracked_container_type::const_iterator it; | |
123 for(it = slot.tracked_objects().begin(); it != slot.tracked_objects().end(); ++it) | |
124 { | |
125 _tracked_objects.push_back(*it); | |
126 } | |
127 return *this; | |
128 } | |
129 template<typename ForeignWeakPtr> | |
130 BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track_foreign(const ForeignWeakPtr &tracked, | |
131 typename weak_ptr_traits<ForeignWeakPtr>::shared_type * /*SFINAE*/ = 0) | |
132 { | |
133 _tracked_objects.push_back(detail::foreign_void_weak_ptr(tracked)); | |
134 return *this; | |
135 } | |
136 template<typename ForeignSharedPtr> | |
137 BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track_foreign(const ForeignSharedPtr &tracked, | |
138 typename shared_ptr_traits<ForeignSharedPtr>::weak_type * /*SFINAE*/ = 0) | |
139 { | |
140 _tracked_objects.push_back | |
141 ( | |
142 detail::foreign_void_weak_ptr | |
143 ( | |
144 typename shared_ptr_traits<ForeignSharedPtr>::weak_type(tracked) | |
145 ) | |
146 ); | |
147 return *this; | |
148 } | |
149 | |
150 const slot_function_type& slot_function() const {return _slot_function;} | |
151 slot_function_type& slot_function() {return _slot_function;} | |
152 private: | |
153 template<typename F> | |
154 void init_slot_function(const F& f) | |
155 { | |
156 _slot_function = detail::get_invocable_slot(f, detail::tag_type(f)); | |
157 signals2::detail::tracked_objects_visitor visitor(this); | |
158 boost::visit_each(visitor, f); | |
159 } | |
160 | |
161 SlotFunction _slot_function; | |
162 }; | |
163 | |
164 #ifdef BOOST_NO_CXX11_VARIADIC_TEMPLATES | |
165 namespace detail | |
166 { | |
167 template<unsigned arity, typename Signature, typename SlotFunction> | |
168 class slotN; | |
169 // partial template specialization | |
170 template<typename Signature, typename SlotFunction> | |
171 class slotN<BOOST_SIGNALS2_NUM_ARGS, Signature, SlotFunction> | |
172 { | |
173 public: | |
174 typedef BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)< | |
175 BOOST_SIGNALS2_PORTABLE_SIGNATURE(BOOST_SIGNALS2_NUM_ARGS, Signature), | |
176 SlotFunction> type; | |
177 }; | |
178 } | |
179 #endif | |
180 } // end namespace signals2 | |
181 } // end namespace boost | |
182 | |
183 #undef BOOST_SIGNALS2_NUM_ARGS |