/Src/Dependencies/Boost/boost/signals2/detail/slot_template.hpp
http://hadesmem.googlecode.com/ · C++ Header · 183 lines · 145 code · 22 blank · 16 comment · 4 complexity · a8cd47e4cba3c56e11df1e1eaf133fc9 MD5 · raw file
- // Boost.Signals2 library
- // Copyright Frank Mori Hess 2007-2008.
- // Copyright Timmo Stange 2007.
- // Copyright Douglas Gregor 2001-2004. Use, modification and
- // distribution is subject to 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)
- // For more information, see http://www.boost.org
- // This file is included iteratively, and should not be protected from multiple inclusion
- #ifdef BOOST_NO_VARIADIC_TEMPLATES
- #define BOOST_SIGNALS2_NUM_ARGS BOOST_PP_ITERATION()
- #else
- #define BOOST_SIGNALS2_NUM_ARGS 1
- #endif
- namespace boost
- {
- namespace signals2
- {
- template<typename Signature, typename SlotFunction> class slot;
- // slot class template.
- template<BOOST_SIGNALS2_SIGNATURE_TEMPLATE_DECL(BOOST_SIGNALS2_NUM_ARGS),
- typename SlotFunction = BOOST_SIGNALS2_FUNCTION_N_DECL(BOOST_SIGNALS2_NUM_ARGS)>
- class BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS);
- template<BOOST_SIGNALS2_SLOT_TEMPLATE_SPECIALIZATION_DECL(BOOST_SIGNALS2_NUM_ARGS)>
- class BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS) BOOST_SIGNALS2_SLOT_TEMPLATE_SPECIALIZATION
- : public slot_base, public detail::BOOST_SIGNALS2_STD_FUNCTIONAL_BASE(R)
- {
- public:
- template<BOOST_SIGNALS2_PREFIXED_SIGNATURE_TEMPLATE_DECL(BOOST_SIGNALS2_NUM_ARGS, Other), typename OtherSlotFunction>
- friend class BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS);
- typedef SlotFunction slot_function_type;
- typedef R result_type;
- typedef typename mpl::identity<BOOST_SIGNALS2_SIGNATURE_FUNCTION_TYPE(BOOST_SIGNALS2_NUM_ARGS)>::type signature_type;
- #ifdef BOOST_NO_VARIADIC_TEMPLATES
- // typedef Tn argn_type;
- #define BOOST_SIGNALS2_MISC_STATEMENT(z, n, data) \
- typedef BOOST_PP_CAT(T, BOOST_PP_INC(n)) BOOST_PP_CAT(BOOST_PP_CAT(arg, BOOST_PP_INC(n)), _type);
- BOOST_PP_REPEAT(BOOST_SIGNALS2_NUM_ARGS, BOOST_SIGNALS2_MISC_STATEMENT, ~)
- #undef BOOST_SIGNALS2_MISC_STATEMENT
- #if BOOST_SIGNALS2_NUM_ARGS == 1
- typedef arg1_type argument_type;
- #elif BOOST_SIGNALS2_NUM_ARGS == 2
- typedef arg1_type first_argument_type;
- typedef arg2_type second_argument_type;
- #endif
- template<unsigned n> class arg : public
- detail::BOOST_SIGNALS2_PREPROCESSED_ARG_N_TYPE_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)
- <n BOOST_SIGNALS2_PP_COMMA_IF(BOOST_SIGNALS2_NUM_ARGS)
- BOOST_SIGNALS2_ARGS_TEMPLATE_INSTANTIATION(BOOST_SIGNALS2_NUM_ARGS)>
- {};
- BOOST_STATIC_CONSTANT(int, arity = BOOST_SIGNALS2_NUM_ARGS);
- #else // BOOST_NO_VARIADIC_TEMPLATES
- template<unsigned n> class arg
- {
- public:
- typedef typename detail::variadic_arg_type<n, Args...>::type type;
- };
- BOOST_STATIC_CONSTANT(int, arity = sizeof...(Args));
- #endif // BOOST_NO_VARIADIC_TEMPLATES
- template<typename F>
- BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)(const F& f)
- {
- init_slot_function(f);
- }
- // copy constructors
- #ifdef BOOST_NO_VARIADIC_TEMPLATES
- template<BOOST_SIGNALS2_PREFIXED_SIGNATURE_TEMPLATE_DECL(BOOST_SIGNALS2_NUM_ARGS, Other), typename OtherSlotFunction>
- BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)(const BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)
- <BOOST_SIGNALS2_PREFIXED_SIGNATURE_TEMPLATE_INSTANTIATION(BOOST_SIGNALS2_NUM_ARGS, Other), OtherSlotFunction> &other_slot):
- slot_base(other_slot), _slot_function(other_slot._slot_function)
- {
- }
- #endif
- template<typename Signature, typename OtherSlotFunction>
- BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)(const slot<Signature, OtherSlotFunction> &other_slot):
- slot_base(other_slot), _slot_function(other_slot._slot_function)
- {
- }
- // bind syntactic sugar
- BOOST_SIGNALS2_SLOT_N_BINDING_CONSTRUCTORS
- // invocation
- R operator()(BOOST_SIGNALS2_SIGNATURE_FULL_ARGS(BOOST_SIGNALS2_NUM_ARGS))
- {
- locked_container_type locked_objects = lock();
- return _slot_function(BOOST_SIGNALS2_SIGNATURE_ARG_NAMES(BOOST_SIGNALS2_NUM_ARGS));
- }
- R operator()(BOOST_SIGNALS2_SIGNATURE_FULL_ARGS(BOOST_SIGNALS2_NUM_ARGS)) const
- {
- locked_container_type locked_objects = lock();
- return _slot_function(BOOST_SIGNALS2_SIGNATURE_ARG_NAMES(BOOST_SIGNALS2_NUM_ARGS));
- }
- // tracking
- BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track(const weak_ptr<void> &tracked) {
- _tracked_objects.push_back(tracked);
- return *this;
- }
- BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track(const signal_base &signal)
- {
- track_signal(signal);
- return *this;
- }
- BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track(const slot_base &slot)
- {
- tracked_container_type::const_iterator it;
- for(it = slot.tracked_objects().begin(); it != slot.tracked_objects().end(); ++it)
- {
- _tracked_objects.push_back(*it);
- }
- return *this;
- }
- template<typename ForeignWeakPtr>
- BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track_foreign(const ForeignWeakPtr &tracked,
- typename weak_ptr_traits<ForeignWeakPtr>::shared_type * /*SFINAE*/ = 0)
- {
- _tracked_objects.push_back(detail::foreign_void_weak_ptr(tracked));
- return *this;
- }
- template<typename ForeignSharedPtr>
- BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)& track_foreign(const ForeignSharedPtr &tracked,
- typename shared_ptr_traits<ForeignSharedPtr>::weak_type * /*SFINAE*/ = 0)
- {
- _tracked_objects.push_back
- (
- detail::foreign_void_weak_ptr
- (
- typename shared_ptr_traits<ForeignSharedPtr>::weak_type(tracked)
- )
- );
- return *this;
- }
- const slot_function_type& slot_function() const {return _slot_function;}
- slot_function_type& slot_function() {return _slot_function;}
- private:
- template<typename F>
- void init_slot_function(const F& f)
- {
- _slot_function = detail::get_invocable_slot(f, detail::tag_type(f));
- signals2::detail::tracked_objects_visitor visitor(this);
- boost::visit_each(visitor, f);
- }
- SlotFunction _slot_function;
- };
- #ifdef BOOST_NO_VARIADIC_TEMPLATES
- namespace detail
- {
- template<unsigned arity, typename Signature, typename SlotFunction>
- class slotN;
- // partial template specialization
- template<typename Signature, typename SlotFunction>
- class slotN<BOOST_SIGNALS2_NUM_ARGS, Signature, SlotFunction>
- {
- public:
- typedef BOOST_SIGNALS2_SLOT_CLASS_NAME(BOOST_SIGNALS2_NUM_ARGS)<
- BOOST_SIGNALS2_PORTABLE_SIGNATURE(BOOST_SIGNALS2_NUM_ARGS, Signature),
- SlotFunction> type;
- };
- }
- #endif
- } // end namespace signals2
- } // end namespace boost
- #undef BOOST_SIGNALS2_NUM_ARGS