cpp-stateful-serializer/include/serializer/strconv.h

//
//  stringizer.h
//  serializer
//
//  Created by Sam Jaffe on 3/15/23.
//

#pragma once

#include <string>
#include <string_view>
#include <type_traits>

#include <magic_enum/magic_enum.hpp>
#include <magic_enum/magic_enum_flags.hpp>

#include <serializer/traits.h>

namespace serializer {
using ::std::to_string;
inline std::string to_string(char const * str) { return str; }
inline std::string to_string(std::string const & str) { return str; }
inline std::string to_string(std::string_view str) { return std::string(str); }

template <typename T> std::string to_string(T const & elem) {
  if constexpr (detail::is_dereferencable_v<T>) {
    using ::serializer::to_string;
    return elem ? to_string(*elem) : "nil";
  } else if constexpr (std::is_enum_v<T>) {
    if constexpr (magic_enum::detail::subtype_v<T> ==
                  magic_enum::detail::enum_subtype::flags) {
      return std::string(magic_enum::enum_flags_name<T>(elem));
    } else {
      return std::string(magic_enum::enum_name<T>(elem));
    }
  } else {
    static_assert(detail::always_false<T>{});
  }
}
}