311 lines
9.4 KiB
C++
311 lines
9.4 KiB
C++
// (C) Copyright Gennadiy Rozental 2005-2008.
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// Use, modification, and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/test for the library home page.
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//
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// File : $RCSfile$
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//
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// Version : $Revision: 49312 $
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//
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// Description :
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// ***************************************************************************
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#ifndef BOOST_TEST_CALLBACK_020505GER
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#define BOOST_TEST_CALLBACK_020505GER
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// Boost
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#include <boost/config.hpp>
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#include <boost/detail/workaround.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/test/detail/suppress_warnings.hpp>
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#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) || BOOST_WORKAROUND(BOOST_INTEL, <= 700)
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# define BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
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#endif
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//____________________________________________________________________________//
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namespace boost {
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namespace unit_test {
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namespace ut_detail {
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struct unused {};
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template<typename R>
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struct invoker {
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template<typename Functor>
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R invoke( Functor& f ) { return f(); }
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template<typename Functor, typename T1>
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R invoke( Functor& f, T1 t1 ) { return f( t1 ); }
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template<typename Functor, typename T1, typename T2>
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R invoke( Functor& f, T1 t1, T2 t2 ) { return f( t1, t2 ); }
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template<typename Functor, typename T1, typename T2, typename T3>
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R invoke( Functor& f, T1 t1, T2 t2, T3 t3 ) { return f( t1, t2, t3 ); }
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};
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//____________________________________________________________________________//
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template<>
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struct invoker<unused> {
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template<typename Functor>
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unused invoke( Functor& f ) { f(); return unused(); }
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template<typename Functor, typename T1>
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unused invoke( Functor& f, T1 t1 ) { f( t1 ); return unused(); }
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template<typename Functor, typename T1, typename T2>
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unused invoke( Functor& f, T1 t1, T2 t2 ) { f( t1, t2 ); return unused(); }
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template<typename Functor, typename T1, typename T2, typename T3>
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unused invoke( Functor& f, T1 t1, T2 t2, T3 t3 ) { f( t1, t2, t3 ); return unused(); }
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};
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//____________________________________________________________________________//
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} // namespace ut_detail
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// ************************************************************************** //
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// ************** unit_test::callback0 ************** //
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// ************************************************************************** //
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namespace ut_detail {
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template<typename R>
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struct callback0_impl {
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virtual ~callback0_impl() {}
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virtual R invoke() = 0;
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};
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//____________________________________________________________________________//
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template<typename R, typename Functor>
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struct callback0_impl_t : callback0_impl<R> {
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// Constructor
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explicit callback0_impl_t( Functor f ) : m_f( f ) {}
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virtual R invoke() { return invoker<R>().invoke( m_f ); }
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private:
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// Data members
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Functor m_f;
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};
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//____________________________________________________________________________//
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} // namespace ut_detail
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template<typename R = ut_detail::unused>
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class callback0 {
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public:
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// Constructors
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callback0() {}
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#ifdef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
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callback0( callback0 const& rhs ) : m_impl( rhs.m_impl ) {}
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#endif
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template<typename Functor>
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callback0( Functor f )
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: m_impl( new ut_detail::callback0_impl_t<R,Functor>( f ) ) {}
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void operator=( callback0 const& rhs ) { m_impl = rhs.m_impl; }
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template<typename Functor>
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void operator=( Functor f ) { m_impl.reset( new ut_detail::callback0_impl_t<R,Functor>( f ) ); }
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R operator()() const { return m_impl->invoke(); }
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bool operator!() const { return !m_impl; }
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private:
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// Data members
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boost::shared_ptr<ut_detail::callback0_impl<R> > m_impl;
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};
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// ************************************************************************** //
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// ************** unit_test::callback1 ************** //
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// ************************************************************************** //
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namespace ut_detail {
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template<typename R, typename T1>
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struct callback1_impl {
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virtual ~callback1_impl() {}
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virtual R invoke( T1 t1 ) = 0;
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};
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//____________________________________________________________________________//
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template<typename R, typename T1,typename Functor>
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struct callback1_impl_t : callback1_impl<R,T1> {
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// Constructor
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explicit callback1_impl_t( Functor f ) : m_f( f ) {}
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virtual R invoke( T1 t1 ) { return invoker<R>().invoke( m_f, t1 ); }
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private:
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// Data members
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Functor m_f;
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};
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//____________________________________________________________________________//
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} // namespace ut_detail
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template<typename T1,typename R = ut_detail::unused>
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class callback1 {
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public:
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// Constructors
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callback1() {}
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#ifdef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
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callback1( callback1 const& rhs ) : m_impl( rhs.m_impl ) {}
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#endif
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template<typename Functor>
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callback1( Functor f )
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: m_impl( new ut_detail::callback1_impl_t<R,T1,Functor>( f ) ) {}
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void operator=( callback1 const& rhs ) { m_impl = rhs.m_impl; }
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template<typename Functor>
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void operator=( Functor f ) { m_impl.reset( new ut_detail::callback1_impl_t<R,T1,Functor>( f ) ); }
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R operator()( T1 t1 ) const { return m_impl->invoke( t1 ); }
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bool operator!() const { return !m_impl; }
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private:
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// Data members
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boost::shared_ptr<ut_detail::callback1_impl<R,T1> > m_impl;
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};
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// ************************************************************************** //
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// ************** unit_test::callback2 ************** //
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// ************************************************************************** //
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namespace ut_detail {
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template<typename R, typename T1,typename T2>
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struct callback2_impl {
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virtual ~callback2_impl() {}
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virtual R invoke( T1 t1, T2 t2 ) = 0;
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};
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//____________________________________________________________________________//
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template<typename R, typename T1, typename T2, typename Functor>
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struct callback2_impl_t : callback2_impl<R,T1,T2> {
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// Constructor
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explicit callback2_impl_t( Functor f ) : m_f( f ) {}
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virtual R invoke( T1 t1, T2 t2 ) { return invoker<R>().template invoke<Functor,T1,T2>( m_f, t1, t2 ); }
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private:
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// Data members
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Functor m_f;
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};
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//____________________________________________________________________________//
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} // namespace ut_detail
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template<typename T1,typename T2, typename R = ut_detail::unused>
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class callback2 {
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public:
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// Constructors
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callback2() {}
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#ifdef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
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callback2( callback2 const& rhs ) : m_impl( rhs.m_impl ) {}
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#endif
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template<typename Functor>
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callback2( Functor f ) : m_impl( new ut_detail::callback2_impl_t<R,T1,T2,Functor>( f ) ) {}
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void operator=( callback2 const& rhs ) { m_impl = rhs.m_impl; }
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template<typename Functor>
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void operator=( Functor f ) { m_impl.reset( new ut_detail::callback2_impl_t<R,T1,T2,Functor>( f ) ); }
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R operator()( T1 t1, T2 t2 ) const { return m_impl->invoke( t1, t2 ); }
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bool operator!() const { return !m_impl; }
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private:
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// Data members
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boost::shared_ptr<ut_detail::callback2_impl<R,T1,T2> > m_impl;
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};
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// ************************************************************************** //
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// ************** unit_test::callback3 ************** //
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// ************************************************************************** //
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namespace ut_detail {
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template<typename R, typename T1, typename T2, typename T3>
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struct callback3_impl {
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virtual ~callback3_impl() {}
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virtual R invoke( T1 t1, T2 t2, T3 t3 ) = 0;
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};
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//____________________________________________________________________________//
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template<typename R, typename T1, typename T2, typename T3, typename Functor>
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struct callback3_impl_t : callback3_impl<R,T1,T2,T3> {
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// Constructor
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explicit callback3_impl_t( Functor f ) : m_f( f ) {}
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virtual R invoke( T1 t1, T2 t2, T3 t3 ) { return invoker<R>().invoke( m_f, t1, t2, t3 ); }
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private:
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// Data members
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Functor m_f;
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};
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//____________________________________________________________________________//
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} // namespace ut_detail
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template<typename T1,typename T2, typename T3, typename R = ut_detail::unused>
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class callback3 {
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public:
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// Constructors
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callback3() {}
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#ifdef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
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callback3( callback3 const& rhs ) : m_impl( rhs.m_impl ) {}
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#endif
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template<typename Functor>
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callback3( Functor f )
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: m_impl( new ut_detail::callback3_impl_t<R,T1,T2,T3,Functor>( f ) ) {}
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void operator=( callback3 const& rhs ) { m_impl = rhs.m_impl; }
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template<typename Functor>
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void operator=( Functor f ) { m_impl.reset( new ut_detail::callback3_impl_t<R,T1,T2,T3,Functor>( f ) ); }
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R operator()( T1 t1, T2 t2, T3 t3 ) const { return m_impl->invoke( t1, t2, t3 ); }
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bool operator!() const { return !m_impl; }
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private:
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// Data members
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boost::shared_ptr<ut_detail::callback3_impl<R,T1,T2,T3> > m_impl;
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};
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} // namespace unit_test
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} // namespace boost
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#undef BOOST_CALLBACK_EXPLICIT_COPY_CONSTRUCTOR
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//____________________________________________________________________________//
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#include <boost/test/detail/enable_warnings.hpp>
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#endif // BOOST_TEST_CALLBACK_020505GER
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