mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
#ifndef SPROUT_COMPOST_EFFECTS_SYNTHESIZED_HPP
|
|
#define SPROUT_COMPOST_EFFECTS_SYNTHESIZED_HPP
|
|
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/functional/plus.hpp>
|
|
#include <sprout/utility/forward.hpp>
|
|
#include <sprout/utility/value_holder.hpp>
|
|
#include <sprout/range/adaptor/transformed.hpp>
|
|
|
|
namespace sprout {
|
|
namespace compost {
|
|
namespace effects {
|
|
//
|
|
// synthesize_holder
|
|
//
|
|
template<typename RRange>
|
|
class synthesize_holder {
|
|
public:
|
|
typedef RRange range2_type;
|
|
private:
|
|
sprout::value_holder<range2_type&> range_;
|
|
public:
|
|
synthesize_holder() = default;
|
|
synthesize_holder(synthesize_holder const&) = default;
|
|
explicit SPROUT_CONSTEXPR synthesize_holder(range2_type& range)
|
|
: range_(range)
|
|
{}
|
|
SPROUT_CONSTEXPR range2_type& range() const {
|
|
return range_;
|
|
}
|
|
};
|
|
|
|
//
|
|
// synthesized_forwarder
|
|
//
|
|
class synthesized_forwarder {
|
|
public:
|
|
template<typename RRange>
|
|
SPROUT_CONSTEXPR sprout::compost::effects::synthesize_holder<
|
|
typename std::remove_reference<typename sprout::lvalue_reference<RRange>::type>::type
|
|
>
|
|
operator()(RRange&& range) {
|
|
return sprout::compost::effects::synthesize_holder<
|
|
typename std::remove_reference<typename sprout::lvalue_reference<RRange>::type>::type
|
|
>(
|
|
sprout::lvalue_forward<RRange>(range)
|
|
);
|
|
}
|
|
};
|
|
|
|
//
|
|
// synthesized
|
|
//
|
|
namespace {
|
|
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::synthesized_forwarder synthesized{};
|
|
} // anonymous-namespace
|
|
|
|
//
|
|
// operator|
|
|
//
|
|
template<typename Range, typename T>
|
|
inline SPROUT_CONSTEXPR auto
|
|
operator|(Range&& lhs, sprout::compost::effects::synthesize_holder<T> const& rhs)
|
|
-> decltype(
|
|
sprout::forward<Range>(lhs)
|
|
| sprout::adaptors::transformed(rhs.range(), sprout::plus<>())
|
|
)
|
|
{
|
|
return sprout::forward<Range>(lhs)
|
|
| sprout::adaptors::transformed(rhs.range(), sprout::plus<>())
|
|
;
|
|
}
|
|
} // namespace effects
|
|
} // namespace compost
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_COMPOST_EFFECTS_SYNTHESIZED_HPP
|