comparison DEPENDENCIES/generic/include/boost/signals2/detail/slot_template.hpp @ 16:2665513ce2d3

Add boost headers
author Chris Cannam
date Tue, 05 Aug 2014 11:11:38 +0100
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children c530137014c0
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15:663ca0da4350 16:2665513ce2d3
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