Sprout/sprout/weed/parser/lit.hpp
2015-01-10 19:13:57 +09:00

41 lines
1.2 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_WEED_PARSER_LIT_HPP
#define SPROUT_WEED_PARSER_LIT_HPP
#include <sprout/config.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/type_traits/remove_shallow_cvref.hpp>
namespace sprout {
namespace weed {
//
// lit_g
//
struct lit_g {
public:
template<typename T, typename = void>
struct eval;
public:
template<typename T>
SPROUT_CONSTEXPR typename eval<
typename sprout::remove_shallow_cvref<T>::type
>::result_type
operator()(T&& t) const {
typedef eval<typename sprout::remove_shallow_cvref<T>::type> eval_type;
return eval_type()(SPROUT_FORWARD(T, t));
}
};
//
// lit
//
SPROUT_STATIC_CONSTEXPR sprout::weed::lit_g lit = sprout::weed::lit_g();
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_PARSER_LIT_HPP