draconisplusplus/include/rfl/internal/has_reflection_method_v.hpp
2024-06-16 00:13:15 -04:00

28 lines
835 B
C++

#ifndef RFL_INTERNAL_HASREFLECTIONMETHODV_HPP_
#define RFL_INTERNAL_HASREFLECTIONMETHODV_HPP_
#include <type_traits>
namespace rfl {
namespace internal {
template <typename Wrapper>
using reflection_method_t = decltype(std::declval<const Wrapper>().reflection());
template <typename Wrapper, typename = std::void_t<>>
struct has_refl_m : std::false_type {};
template <typename Wrapper>
struct has_refl_m<Wrapper, std::void_t<reflection_method_t<Wrapper>>> : std::true_type {};
/// Utility parameter for named tuple parsing, can be used by the
/// parsers to determine whether a class or struct has a method
/// called "reflection".
template <typename Wrapper>
constexpr bool has_reflection_method_v = has_refl_m<Wrapper>::value;
} // namespace internal
} // namespace rfl
#endif