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#ifndef BOOST_CONTRACT_DETAIL_COND_POST_HPP_
#define BOOST_CONTRACT_DETAIL_COND_POST_HPP_
// Copyright (C) 2008-2018 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0 (see accompanying
// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
#include <boost/contract/core/exception.hpp>
#include <boost/contract/core/config.hpp>
#include <boost/contract/detail/condition/cond_base.hpp>
#include <boost/contract/detail/none.hpp>
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
#include <boost/contract/detail/type_traits/optional.hpp>
#include <boost/optional.hpp>
#include <boost/function.hpp>
#include <boost/type_traits/remove_reference.hpp>
#include <boost/mpl/if.hpp>
#endif
/* PRIVATE */
#define BOOST_CONTRACT_DETAIL_COND_POST_DEF_( \
result_type, result_param, ftor_type, ftor_var, ftor_call) \
public: \
template<typename F> \
void set_post(F const& f) { ftor_var = f; } \
\
protected: \
void check_post(result_type const& result_param) { \
if(failed()) return; \
try { if(ftor_var) { ftor_call; } } \
catch(...) { fail(&boost::contract::postcondition_failure); } \
} \
\
private: \
boost::function<ftor_type> ftor_var; /* Boost.Func for lambdas, etc. */
/* CODE */
namespace boost { namespace contract { namespace detail {
template<typename VR>
class cond_post : public cond_base { // Non-copyable base.
public:
explicit cond_post(boost::contract::from from) : cond_base(from) {}
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
private: typedef typename boost::mpl::if_<is_optional<VR>,
boost::optional<typename boost::remove_reference<typename
optional_value_type<VR>::type>::type const&> const&
,
VR const&
>::type r_type;
BOOST_CONTRACT_DETAIL_COND_POST_DEF_(
r_type,
r,
void (r_type),
// Won't raise this error if NO_POST (for optimization).
BOOST_CONTRACT_ERROR_postcondition_result_parameter_required,
BOOST_CONTRACT_ERROR_postcondition_result_parameter_required(r)
)
#endif
};
template<>
class cond_post<none> : public cond_base { // Non-copyable base.
public:
explicit cond_post(boost::contract::from from) : cond_base(from) {}
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
BOOST_CONTRACT_DETAIL_COND_POST_DEF_(
none,
unused,
void (),
// Won't raise this error if NO_POST (for optimization).
BOOST_CONTRACT_ERROR_postcondition_result_parameter_not_allowed,
BOOST_CONTRACT_ERROR_postcondition_result_parameter_not_allowed()
)
#endif
};
} } } // namespace
#endif // #include guard
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