sl@0: //  (C) Copyright Gennadiy Rozental 2005.
sl@0: //  Use, modification, and distribution are subject to the 
sl@0: //  Boost Software License, Version 1.0. (See accompanying file 
sl@0: //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
sl@0: 
sl@0: //  See http://www.boost.org/libs/test for the library home page.
sl@0: //
sl@0: //  File        : $RCSfile: callback.hpp,v $
sl@0: //
sl@0: //  Version     : $Revision: 1.7 $
sl@0: //
sl@0: //  Description : 
sl@0: // ***************************************************************************
sl@0: 
sl@0: #ifndef BOOST_TEST_CALLBACK_020505GER
sl@0: #define BOOST_TEST_CALLBACK_020505GER
sl@0: 
sl@0: // Boost
sl@0: #include <boost/config.hpp>
sl@0: #include <boost/detail/workaround.hpp>
sl@0: #include <boost/shared_ptr.hpp>
sl@0: 
sl@0: #include <boost/test/detail/suppress_warnings.hpp>
sl@0: 
sl@0: #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) || BOOST_WORKAROUND(BOOST_INTEL, <= 700)
sl@0: #  define BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
sl@0: #endif
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: namespace boost {
sl@0: 
sl@0: namespace unit_test {
sl@0: 
sl@0: namespace ut_detail {
sl@0: 
sl@0: struct unused {};
sl@0: 
sl@0: template<typename R>
sl@0: struct invoker {
sl@0:     template<typename Functor>
sl@0:     R       invoke( Functor& f )                        { return f(); }
sl@0:     template<typename Functor, typename T1>
sl@0:     R       invoke( Functor& f, T1 t1 )                 { return f( t1 ); }
sl@0:     template<typename Functor, typename T1, typename T2>
sl@0:     R       invoke( Functor& f, T1 t1, T2 t2 )          { return f( t1, t2 ); }
sl@0:     template<typename Functor, typename T1, typename T2, typename T3>
sl@0:     R       invoke( Functor& f, T1 t1, T2 t2, T3 t3 )   { return f( t1, t2, t3 ); }
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: template<>
sl@0: struct invoker<unused> {
sl@0:     template<typename Functor>
sl@0:     unused  invoke( Functor& f )                        { f(); return unused(); }
sl@0:     template<typename Functor, typename T1>
sl@0:     unused  invoke( Functor& f, T1 t1 )                 { f( t1 ); return unused(); }
sl@0:     template<typename Functor, typename T1, typename T2>
sl@0:     unused  invoke( Functor& f, T1 t1, T2 t2 )          { f( t1, t2 ); return unused(); }
sl@0:     template<typename Functor, typename T1, typename T2, typename T3>
sl@0:     unused  invoke( Functor& f, T1 t1, T2 t2, T3 t3 )   { f( t1, t2, t3 ); return unused(); }
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: } // namespace ut_detail
sl@0: 
sl@0: // ************************************************************************** //
sl@0: // **************             unit_test::callback0             ************** //
sl@0: // ************************************************************************** //
sl@0: 
sl@0: namespace ut_detail {
sl@0: 
sl@0: template<typename R>
sl@0: struct callback0_impl {
sl@0:     virtual ~callback0_impl() {}
sl@0: 
sl@0:     virtual R invoke() = 0;
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: template<typename R, typename Functor>
sl@0: struct callback0_impl_t : callback0_impl<R> {
sl@0:     // Constructor
sl@0:     explicit callback0_impl_t( Functor f ) : m_f( f ) {}
sl@0: 
sl@0:     virtual R invoke() { return invoker<R>().invoke( m_f ); }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     Functor m_f;
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: } // namespace ut_detail
sl@0: 
sl@0: template<typename R = ut_detail::unused>
sl@0: class callback0 {
sl@0: public:
sl@0:     // Constructors
sl@0:     callback0() {}
sl@0: #ifdef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
sl@0:     callback0( callback0 const& rhs ) : m_impl( rhs.m_impl ) {}
sl@0: #endif
sl@0: 
sl@0:     template<typename Functor>
sl@0:     callback0( Functor f )
sl@0:     : m_impl( new ut_detail::callback0_impl_t<R,Functor>( f ) ) {}
sl@0:     
sl@0:     void        operator=( callback0 const& rhs ) { m_impl = rhs.m_impl; }
sl@0: 
sl@0:     template<typename Functor>
sl@0:     void        operator=( Functor f ) { m_impl.reset( new ut_detail::callback0_impl_t<R,Functor>( f ) );  }
sl@0: 
sl@0:     R           operator()() const { return m_impl->invoke(); }
sl@0: 
sl@0:     bool        operator!() const { return !m_impl; }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     boost::shared_ptr<ut_detail::callback0_impl<R> > m_impl;
sl@0: };
sl@0: 
sl@0: // ************************************************************************** //
sl@0: // **************             unit_test::callback1             ************** //
sl@0: // ************************************************************************** //
sl@0: 
sl@0: namespace ut_detail {
sl@0: 
sl@0: template<typename R, typename T1>
sl@0: struct callback1_impl {
sl@0:     virtual ~callback1_impl() {}
sl@0: 
sl@0:     virtual R invoke( T1 t1 ) = 0;
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: template<typename R, typename T1,typename Functor>
sl@0: struct callback1_impl_t : callback1_impl<R,T1> {
sl@0:     // Constructor
sl@0:     explicit callback1_impl_t( Functor f ) : m_f( f ) {}
sl@0: 
sl@0:     virtual R invoke( T1 t1 ) { return invoker<R>().invoke( m_f, t1 ); }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     Functor m_f;
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: } // namespace ut_detail
sl@0: 
sl@0: template<typename T1,typename R = ut_detail::unused>
sl@0: class callback1 {
sl@0: public:
sl@0:     // Constructors
sl@0:     callback1() {}
sl@0: #ifdef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
sl@0:     callback1( callback1 const& rhs ) : m_impl( rhs.m_impl ) {}
sl@0: #endif
sl@0: 
sl@0:     template<typename Functor>
sl@0:     callback1( Functor f )
sl@0:     : m_impl( new ut_detail::callback1_impl_t<R,T1,Functor>( f ) ) {}
sl@0: 
sl@0:     void        operator=( callback1 const& rhs ) { m_impl = rhs.m_impl; }
sl@0: 
sl@0:     template<typename Functor>
sl@0:     void        operator=( Functor f ) { m_impl.reset( new ut_detail::callback1_impl_t<R,T1,Functor>( f ) );  }
sl@0: 
sl@0:     R           operator()( T1 t1 ) const { return m_impl->invoke( t1 ); }
sl@0: 
sl@0:     bool        operator!() const { return !m_impl; }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     boost::shared_ptr<ut_detail::callback1_impl<R,T1> > m_impl;
sl@0: };
sl@0: 
sl@0: // ************************************************************************** //
sl@0: // **************             unit_test::callback2             ************** //
sl@0: // ************************************************************************** //
sl@0: 
sl@0: namespace ut_detail {
sl@0: 
sl@0: template<typename R, typename T1,typename T2>
sl@0: struct callback2_impl {
sl@0:     virtual ~callback2_impl() {}
sl@0: 
sl@0:     virtual R invoke( T1 t1, T2 t2 ) = 0;
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: template<typename R, typename T1, typename T2, typename Functor>
sl@0: struct callback2_impl_t : callback2_impl<R,T1,T2> {
sl@0:     // Constructor
sl@0:     explicit callback2_impl_t( Functor f ) : m_f( f ) {}
sl@0: 
sl@0:     virtual R invoke( T1 t1, T2 t2 ) { return invoker<R>().template invoke<Functor,T1,T2>( m_f, t1, t2 ); }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     Functor m_f;
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: } // namespace ut_detail
sl@0: 
sl@0: template<typename T1,typename T2, typename R = ut_detail::unused>
sl@0: class callback2 {
sl@0: public:
sl@0:     // Constructors
sl@0:     callback2() {}
sl@0: #ifdef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
sl@0:     callback2( callback2 const& rhs ) : m_impl( rhs.m_impl ) {}
sl@0: #endif
sl@0: 
sl@0:     template<typename Functor>
sl@0:                 callback2( Functor f ) : m_impl( new ut_detail::callback2_impl_t<R,T1,T2,Functor>( f ) ) {}
sl@0: 
sl@0:     void        operator=( callback2 const& rhs ) { m_impl = rhs.m_impl; }
sl@0: 
sl@0:     template<typename Functor>
sl@0:     void        operator=( Functor f ) { m_impl.reset( new ut_detail::callback2_impl_t<R,T1,T2,Functor>( f ) );  }
sl@0: 
sl@0:     R           operator()( T1 t1, T2 t2 ) const { return m_impl->invoke( t1, t2 ); }
sl@0: 
sl@0:     bool        operator!() const { return !m_impl; }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     boost::shared_ptr<ut_detail::callback2_impl<R,T1,T2> > m_impl;
sl@0: };
sl@0: 
sl@0: // ************************************************************************** //
sl@0: // **************             unit_test::callback3             ************** //
sl@0: // ************************************************************************** //
sl@0: 
sl@0: namespace ut_detail {
sl@0: 
sl@0: template<typename R, typename T1, typename T2, typename T3>
sl@0: struct callback3_impl {
sl@0:     virtual ~callback3_impl() {}
sl@0: 
sl@0:     virtual R invoke( T1 t1, T2 t2, T3 t3 ) = 0;
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: template<typename R, typename T1, typename T2, typename T3, typename Functor>
sl@0: struct callback3_impl_t : callback3_impl<R,T1,T2,T3> {
sl@0:     // Constructor
sl@0:     explicit callback3_impl_t( Functor f ) : m_f( f ) {}
sl@0: 
sl@0:     virtual R invoke( T1 t1, T2 t2, T3 t3 ) { return invoker<R>().invoke( m_f, t1, t2, t3 ); }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     Functor m_f;
sl@0: };
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: } // namespace ut_detail
sl@0: 
sl@0: template<typename T1,typename T2, typename T3, typename R = ut_detail::unused>
sl@0: class callback3 {
sl@0: public:
sl@0:     // Constructors
sl@0:     callback3() {}
sl@0: #ifdef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
sl@0:     callback3( callback3 const& rhs ) : m_impl( rhs.m_impl ) {}
sl@0: #endif
sl@0: 
sl@0:     template<typename Functor>
sl@0:     callback3( Functor f )
sl@0:     : m_impl( new ut_detail::callback3_impl_t<R,T1,T2,T3,Functor>( f ) ) {}
sl@0: 
sl@0:     void        operator=( callback3 const& rhs ) { m_impl = rhs.m_impl; }
sl@0: 
sl@0:     template<typename Functor>
sl@0:     void        operator=( Functor f ) { m_impl.reset( new ut_detail::callback3_impl_t<R,T1,T2,T3,Functor>( f ) );  }
sl@0: 
sl@0:     R           operator()( T1 t1, T2 t2, T3 t3 ) const { return m_impl->invoke( t1, t2, t3 ); }
sl@0: 
sl@0:     bool        operator!() const { return !m_impl; }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     boost::shared_ptr<ut_detail::callback3_impl<R,T1,T2,T3> > m_impl;
sl@0: };
sl@0: 
sl@0: } // namespace unit_test
sl@0: 
sl@0: } // namespace boost
sl@0: 
sl@0: #undef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: #include <boost/test/detail/enable_warnings.hpp>
sl@0: 
sl@0: // ************************************************************************** //
sl@0: //   Revision History:
sl@0: //
sl@0: //   $Log: callback.hpp,v $
sl@0: //   Revision 1.7  2006/02/21 04:27:16  rogeeff
sl@0: //   rev back
sl@0: //
sl@0: //   Revision 1.6  2006/01/28 08:57:03  rogeeff
sl@0: //   VC6.0 workaround removed
sl@0: //
sl@0: //   Revision 1.5  2005/04/13 05:09:00  rogeeff
sl@0: //   Intel 7.1 bug fix
sl@0: //
sl@0: //   Revision 1.4  2005/04/12 06:50:06  rogeeff
sl@0: //   suppress warnings
sl@0: //
sl@0: //   Revision 1.3  2005/03/22 07:05:18  rogeeff
sl@0: //   minor vc7.1 workaround
sl@0: //
sl@0: //   Revision 1.2  2005/02/24 19:28:17  turkanis
sl@0: //   removed redundant copy ctors, except for VC6
sl@0: //
sl@0: //   Revision 1.1  2005/02/20 08:27:08  rogeeff
sl@0: //   This a major update for Boost.Test framework. See release docs for complete list of fixes/updates
sl@0: //
sl@0: // ************************************************************************** //
sl@0: 
sl@0: #endif // BOOST_TEST_CALLBACK_020505GER