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Sprout/sprout/breed/transform/call.hpp

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#ifndef SPROUT_BREED_TRANSFORM_CALL_HPP
#define SPROUT_BREED_TRANSFORM_CALL_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/utility/pack.hpp>
#include <sprout/type/type_tuple.hpp>
#include <sprout/breed/breed_fwd.hpp>
#include <sprout/breed/traits.hpp>
#include <sprout/breed/transform/impl.hpp>
#include <sprout/breed/detail/std_result_of.hpp>
#include <sprout/breed/detail/as_lvalue.hpp>
#include <sprout/breed/detail/poly_function.hpp>
namespace sprout {
namespace breed {
//
// call
//
template<typename PrimitiveTransform>
struct call
: public PrimitiveTransform
{};
template<typename Fun>
struct call<Fun()>
: public sprout::breed::transform<sprout::breed::call<Fun()> >
{
public:
template<typename Expr, typename State, typename Data, bool B>
struct impl2
: public sprout::breed::transform_impl<Expr, State, Data>
{
public:
typedef typename sprout::breed::detail::std_result_of<Fun()>::type result_type;
public:
SPROUT_CONSTEXPR result_type operator()(
typename impl2::expr_param,
typename impl2::state_param,
typename impl2::data_param
) const
{
return Fun()();
}
};
template<typename Expr, typename State, typename Data>
struct impl2<Expr, State, Data, true>
: public Fun::template impl<Expr, State, Data>
{};
template<typename Expr, typename State, typename Data>
struct impl
: public impl2<Expr, State, Data, sprout::breed::detail::is_transform_<Fun>::value>
{};
};
template<typename Fun, typename A0>
struct call<Fun(A0)>
: public sprout::breed::transform<sprout::breed::call<Fun(A0)> >
{
public:
template<typename Expr, typename State, typename Data, bool B>
struct impl2
: public sprout::breed::transform_impl<Expr, State, Data>
{
private:
template<typename A>
struct a_ {
public:
typedef typename sprout::breed::when<sprout::breed::_, A>::template impl<
Expr,
State,
Data
> type;
};
template<typename... Args>
struct fun_ {
public:
typedef Fun type(typename a_<Args>::type::result_type...);
};
template<typename... Args>
struct function_
: public sprout::breed::detail::poly_function_traits<
Fun,
typename fun_<Args...>::type
>
{};
public:
template<long N>
struct a {
public:
typedef typename a_<typename sprout::tppack_at<N, A0>::type>::type::result_type type;
};
typedef function_<A0> function_traits;
typedef typename function_traits::result_type result_type;
SPROUT_CONSTEXPR result_type operator ()(
typename impl2::expr_param e,
typename impl2::state_param s,
typename impl2::data_param d
) const
{
return typename function_traits::function_type()(
sprout::breed::detail::as_lvalue(a_<A0>()(e, s, d))
);
}
};
template<typename Expr, typename State, typename Data>
struct impl2<Expr, State, Data, true>
: public sprout::breed::transform_impl<Expr, State, Data>
{
private:
template<typename A>
struct a_ {
public:
typedef typename sprout::breed::when<sprout::breed::_, A>::template impl<
Expr,
State,
Data
> type;
};
typedef Fun::template impl<typename a_<A0>::type, State, Data> function_;
public:
template<long N>
struct a {
public:
typedef typename a_<typename sprout::tppack_at<N, A0>::type>::type::result_type type;
};
typedef template function_::result_type result_type;
SPROUT_CONSTEXPR result_type operator ()(
typename impl2::expr_param e,
typename impl2::state_param s,
typename impl2::data_param d
) const
{
return function_()(
typename a_<A0>::type()(e, s, d),
s,
d
);
}
};
template<typename Expr, typename State, typename Data>
struct impl
: public impl2<Expr, State, Data, sprout::breed::detail::is_transform_<Fun>::value>
{};
};
template<typename Fun, typename A0, typename A1>
struct call<Fun(A0, A1)>
: public sprout::breed::transform<sprout::breed::call<Fun(A0, A1)> >
{
public:
template<typename Expr, typename State, typename Data, bool B>
struct impl2
: public sprout::breed::transform_impl<Expr, State, Data>
{
private:
template<typename A>
struct a_ {
public:
typedef typename sprout::breed::when<sprout::breed::_, A>::template impl<
Expr,
State,
Data
> type;
};
template<typename... Args>
struct fun_ {
public:
typedef Fun type(typename a_<Args>::type::result_type...);
};
template<typename... Args>
struct function_
: public sprout::breed::detail::poly_function_traits<
Fun,
typename fun_<Args...>::type
>
{};
public:
template<long N>
struct a {
public:
typedef typename a_<typename sprout::tppack_at<N, A0, A1>::type>::type::result_type type;
};
typedef function_<A0, A1> function_traits;
typedef typename function_traits::result_type result_type;
SPROUT_CONSTEXPR result_type operator ()(
typename impl2::expr_param e,
typename impl2::state_param s,
typename impl2::data_param d
) const
{
return typename function_traits::function_type()(
sprout::breed::detail::as_lvalue(a_<A0>()(e, s, d)),
sprout::breed::detail::as_lvalue(a_<A1>()(e, s, d))
);
}
};
template<typename Expr, typename State, typename Data>
struct impl2<Expr, State, Data, true>
: public sprout::breed::transform_impl<Expr, State, Data>
{
private:
template<typename A>
struct a_ {
public:
typedef typename sprout::breed::when<sprout::breed::_, A>::template impl<
Expr,
State,
Data
> type;
};
typedef Fun::template impl<typename a_<A0>::type, typename a_<A1>::type, Data> function_;
public:
template<long N>
struct a {
public:
typedef typename a_<typename sprout::tppack_at<N, A0, A1>::type>::type::result_type type;
};
typedef template function_::result_type result_type;
SPROUT_CONSTEXPR result_type operator ()(
typename impl2::expr_param e,
typename impl2::state_param s,
typename impl2::data_param d
) const
{
return function_()(
typename a_<A0>::type()(e, s, d),
typename a_<A1>::type()(e, s, d),
d
);
}
};
template<typename Expr, typename State, typename Data>
struct impl
: public impl2<Expr, State, Data, sprout::breed::detail::is_transform_<Fun>::value>
{};
};
template<typename Fun, typename A0, typename A1, typename A2>
struct call<Fun(A0, A1, A2)>
: public sprout::breed::transform<sprout::breed::call<Fun(A0, A1, A2)> >
{
public:
template<typename Expr, typename State, typename Data, bool B>
struct impl2
: public sprout::breed::transform_impl<Expr, State, Data>
{
private:
template<typename A>
struct a_ {
public:
typedef typename sprout::breed::when<sprout::breed::_, A>::template impl<
Expr,
State,
Data
> type;
};
template<typename... Args>
struct fun_ {
public:
typedef Fun type(typename a_<Args>::type::result_type...);
};
template<typename... Args>
struct function_
: public sprout::breed::detail::poly_function_traits<
Fun,
typename fun_<Args...>::type
>
{};
public:
template<long N>
struct a {
public:
typedef typename a_<typename sprout::tppack_at<N, A0, A1, A2>::type>::type::result_type type;
};
typedef function_<A0, A1, A2> function_traits;
typedef typename function_traits::result_type result_type;
SPROUT_CONSTEXPR result_type operator ()(
typename impl2::expr_param e,
typename impl2::state_param s,
typename impl2::data_param d
) const
{
return typename function_traits::function_type()(
sprout::breed::detail::as_lvalue(a_<A0>()(e, s, d)),
sprout::breed::detail::as_lvalue(a_<A1>()(e, s, d)),
sprout::breed::detail::as_lvalue(a_<A2>()(e, s, d))
);
}
};
template<typename Expr, typename State, typename Data>
struct impl2<Expr, State, Data, true>
: public sprout::breed::transform_impl<Expr, State, Data>
{
private:
template<typename A>
struct a_ {
public:
typedef typename sprout::breed::when<sprout::breed::_, A>::template impl<
Expr,
State,
Data
> type;
};
typedef Fun::template impl<typename a_<A0>::type, typename a_<A1>::type, typename a_<A2>::type> function_;
public:
template<long N>
struct a {
public:
typedef typename a_<typename sprout::tppack_at<N, A0, A1, A2>::type>::type::result_type type;
};
typedef template function_::result_type result_type;
SPROUT_CONSTEXPR result_type operator ()(
typename impl2::expr_param e,
typename impl2::state_param s,
typename impl2::data_param d
) const
{
return function_()(
typename a_<A0>::type()(e, s, d),
typename a_<A1>::type()(e, s, d),
typename a_<A2>::type()(e, s, d)
);
}
};
template<typename Expr, typename State, typename Data>
struct impl
: public impl2<Expr, State, Data, sprout::breed::detail::is_transform_<Fun>::value>
{};
};
template<typename Fun, typename... Args>
struct call<Fun(Args...)>
: public sprout::breed::transform<sprout::breed::call<Fun(Args...)> >
{
public:
template<typename Expr, typename State, typename Data>
struct impl
: public sprout::breed::transform_impl<Expr, State, Data>
{
private:
template<typename A>
struct a_ {
public:
typedef typename sprout::breed::when<sprout::breed::_, A>::template impl<
Expr,
State,
Data
> type;
};
template<typename... Args>
struct fun_ {
public:
typedef Fun type(typename a_<Args>::type::result_type...);
};
template<typename... Args>
struct function_
: public sprout::breed::detail::poly_function_traits<
Fun,
typename fun_<Args...>::type
>
{};
public:
template<long N>
struct a {
public:
typedef typename a_<typename sprout::tppack_at<N, Args...>::type>::type type;
};
template<long N>
struct b {
public:
typedef typename a_<typename sprout::tppack_at<N, Args...>::type>::type::result_type type;
};
typedef function_<Args...> function_traits;
typedef typename function_traits::result_type result_type;
SPROUT_CONSTEXPR result_type operator ()(
typename impl2::expr_param e,
typename impl2::state_param s,
typename impl2::data_param d
) const
{
return typename function_traits::function_type()(
sprout::breed::detail::as_lvalue(typename a_<Args>::type()(e, s, d))...
);
}
};
};
//
// is_callable
//
template<typename Fun>
struct is_callable<sprout::breed::call<Fun> >
: public std::true_type
{};
} // namespace breed
} // namespace sprout
#endif // #ifndef SPROUT_BREED_TRANSFORM_CALL_HPP