fields.hpp

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#ifndef CODEX_REFLECTION_FIELDS_HPP
#define CODEX_REFLECTION_FIELDS_HPP
 
#include "detail/fields.hpp"
 
namespace codex::refl {
 
template<typename T, std::size_t ...N>
constexpr std::size_t field_count(void) {
    return sizeof...(N) - 1;
}
 
template<typename T, std::size_t ...N>
requires(requires { T{detail::to_any<N>{}...}; })
constexpr std::size_t field_count(void) {
    return field_count<T, N..., sizeof...(N)>();
}
 
template<typename T>
auto field_tuple(T &&t) {
    constexpr auto n = field_count<std::decay_t<T>>();
    return detail::field_tuple_impl<n>{}(std::forward<T>(t));
}
 
template<typename T>
using field_tuple_t = decltype(field_tuple(std::declval<T>()));
 
}
 
#endif