Sprout/sprout/compost/formats/effected_each.hpp
2015-01-10 19:13:57 +09:00

114 lines
4.4 KiB
C++

/*=============================================================================
Copyright (c) 2011-2015 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_COMPOST_FORMATS_EFFECTED_EACH_HPP
#define SPROUT_COMPOST_FORMATS_EFFECTED_EACH_HPP
#include <sprout/config.hpp>
#include <sprout/utility/lvalue_forward.hpp>
#include <sprout/compost/formats/left_channel.hpp>
#include <sprout/compost/formats/right_channel.hpp>
#include <sprout/compost/formats/stereo.hpp>
namespace sprout {
namespace compost {
namespace formats {
//
// effect_each_holder
//
template<typename LAdaptor, typename RAdaptor = void>
class effect_each_holder {
public:
typedef LAdaptor left_adaptor_type;
typedef RAdaptor right_adaptor_type;
private:
left_adaptor_type left_adaptor_;
right_adaptor_type right_adaptor_;
public:
SPROUT_CONSTEXPR effect_each_holder(left_adaptor_type const& left_adaptor, right_adaptor_type const& right_adaptor)
: left_adaptor_(left_adaptor), right_adaptor_(right_adaptor)
{}
SPROUT_CONSTEXPR left_adaptor_type const& left_adaptor() const {
return left_adaptor_;
}
SPROUT_CONSTEXPR right_adaptor_type const& right_adaptor() const {
return right_adaptor_;
}
};
template<typename Adaptor>
class effect_each_holder<Adaptor, void> {
public:
typedef Adaptor adaptor_type;
private:
adaptor_type adaptor_;
public:
explicit SPROUT_CONSTEXPR effect_each_holder(adaptor_type const& adaptor)
: adaptor_(adaptor)
{}
SPROUT_CONSTEXPR adaptor_type const& adaptor() const {
return adaptor_;
}
};
//
// effected_each_cannel_forwarder
//
class effected_each_cannel_forwarder {
public:
template<typename LAdaptor, typename RAdaptor>
SPROUT_CONSTEXPR sprout::compost::formats::effect_each_holder<LAdaptor, RAdaptor>
operator()(LAdaptor const& left_adaptor, RAdaptor const& right_adaptor) const {
return sprout::compost::formats::effect_each_holder<LAdaptor, RAdaptor>(left_adaptor, right_adaptor);
}
template<typename Adaptor>
SPROUT_CONSTEXPR sprout::compost::formats::effect_each_holder<Adaptor>
operator()(Adaptor const& adaptor) const {
return sprout::compost::formats::effect_each_holder<Adaptor>(adaptor);
}
};
//
// effected_each_cannel
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::formats::effected_each_cannel_forwarder effected_each_cannel = {};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename LAdaptor, typename RAdaptor>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::formats::effect_each_holder<LAdaptor, RAdaptor> const& rhs)
-> decltype(
sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::left_channel | rhs.left_adaptor()
| sprout::compost::formats::stereo(sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::right_channel | rhs.right_adaptor())
)
{
return sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::left_channel | rhs.left_adaptor()
| sprout::compost::formats::stereo(sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::right_channel | rhs.right_adaptor())
;
}
template<typename Range, typename Adaptor>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::formats::effect_each_holder<Adaptor> const& rhs)
-> decltype(
sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::left_channel | rhs.adaptor()
| sprout::compost::formats::stereo(sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::right_channel | rhs.adaptor())
)
{
return sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::left_channel | rhs.adaptor()
| sprout::compost::formats::stereo(sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::right_channel | rhs.adaptor())
;
}
} // namespace formats
using sprout::compost::formats::effected_each_cannel;
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_FORMATS_EFFECTED_EACH_HPP