104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
// Boost.Signals2 library
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// Copyright Frank Mori Hess 2007-2008.
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// Copyright Timmo Stange 2007.
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// Copyright Douglas Gregor 2001-2004. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// For more information, see http://www.boost.org
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#ifndef BOOST_SIGNALS2_SLOT_HPP
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#define BOOST_SIGNALS2_SLOT_HPP
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#include <boost/bind.hpp>
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#include <boost/function.hpp>
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#include <boost/preprocessor/repetition.hpp>
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#include <boost/ref.hpp>
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#include <boost/signals2/detail/signals_common.hpp>
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#include <boost/signals2/detail/signals_common_macros.hpp>
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#include <boost/signals2/detail/tracked_objects_visitor.hpp>
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#include <boost/signals2/slot_base.hpp>
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#include <boost/type_traits.hpp>
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#include <boost/visit_each.hpp>
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#include <boost/weak_ptr.hpp>
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namespace boost
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{
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namespace signals2
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{
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namespace detail
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{
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// Get the slot so that it can be copied
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template<typename F>
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typename F::weak_signal_type
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get_invocable_slot(const F &signal, signal_tag)
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{ return typename F::weak_signal_type(signal); }
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template<typename F>
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const F&
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get_invocable_slot(const F& f, reference_tag)
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{ return f; }
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template<typename F>
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const F&
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get_invocable_slot(const F& f, value_tag)
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{ return f; }
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// Determines the type of the slot - is it a signal, a reference to a
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// slot or just a normal slot.
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template<typename F>
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typename get_slot_tag<F>::type
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tag_type(const F&)
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{
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typedef typename get_slot_tag<F>::type
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the_tag_type;
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the_tag_type tag = the_tag_type();
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return tag;
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}
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}
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}
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} // end namespace boost
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#define BOOST_PP_ITERATION_LIMITS (0, BOOST_PP_INC(BOOST_SIGNALS2_MAX_ARGS))
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#define BOOST_PP_FILENAME_1 <boost/signals2/detail/slot_template.hpp>
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#include BOOST_PP_ITERATE()
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namespace boost
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{
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namespace signals2
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{
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template<typename Signature,
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typename SlotFunction = boost::function<Signature> >
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class slot: public detail::slotN<function_traits<Signature>::arity,
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Signature, SlotFunction>::type
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{
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private:
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typedef typename detail::slotN<boost::function_traits<Signature>::arity,
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Signature, SlotFunction>::type base_type;
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public:
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template<typename F>
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slot(const F& f): base_type(f)
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{}
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// bind syntactic sugar
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// const AN & aN
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#define BOOST_SIGNALS2_SLOT_BINDING_ARG_DECL(z, n, data) \
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const BOOST_PP_CAT(A, n) & BOOST_PP_CAT(a, n)
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// template<typename F, typename A0, typename A1, ..., typename An-1> slot(...
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#define BOOST_SIGNALS2_SLOT_BINDING_CONSTRUCTOR(z, n, data) \
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template<typename F, BOOST_PP_ENUM_PARAMS(n, typename A)> \
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slot(const F &f, BOOST_PP_ENUM(n, BOOST_SIGNALS2_SLOT_BINDING_ARG_DECL, ~)): \
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base_type(f, BOOST_PP_ENUM_PARAMS(n, a)) \
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{}
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#define BOOST_SIGNALS2_SLOT_MAX_BINDING_ARGS 10
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BOOST_PP_REPEAT_FROM_TO(1, BOOST_SIGNALS2_SLOT_MAX_BINDING_ARGS, BOOST_SIGNALS2_SLOT_BINDING_CONSTRUCTOR, ~)
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#undef BOOST_SIGNALS2_SLOT_MAX_BINDING_ARGS
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#undef BOOST_SIGNALS2_SLOT_BINDING_ARG_DECL
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#undef BOOST_SIGNALS2_SLOT_BINDING_CONSTRUCTOR
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};
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} // namespace signals2
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}
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#endif // BOOST_SIGNALS2_SLOT_HPP
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