draconisplusplus/include/rfl/enums.hpp

#ifndef RFL_ENUMS_HPP_
#define RFL_ENUMS_HPP_

#include <string>

#include "Result.hpp"
#include "internal/enums/StringConverter.hpp"
#include "internal/enums/get_enum_names.hpp"
#include "internal/enums/is_flag_enum.hpp"
#include "internal/enums/is_scoped_enum.hpp"

namespace rfl {

  // Converts an enum value to a string.
  template <internal::enums::is_scoped_enum EnumType>
  std::string enum_to_string(EnumType _enum) {
    return rfl::internal::enums::StringConverter<EnumType>::enum_to_string(
        _enum);
  }

  // Converts a string to a value of the given enum type.
  template <internal::enums::is_scoped_enum EnumType>
  rfl::Result<EnumType> string_to_enum(const std::string& _str) {
    return rfl::internal::enums::StringConverter<EnumType>::string_to_enum(
        _str);
  }

  // Returns a named tuple mapping names of enumerators of the given enum type
  // to their values.
  template <internal::enums::is_scoped_enum EnumType>
  auto get_enumerators() {
    constexpr auto names = internal::enums::get_enum_names<
        EnumType, internal::enums::is_flag_enum<EnumType>>();
    return internal::enums::names_to_enumerator_named_tuple(names);
  }

  // Returns a named tuple mapping names of enumerators of the given enum type
  // to their underlying values.
  template <internal::enums::is_scoped_enum EnumType>
  auto get_underlying_enumerators() {
    constexpr auto names = internal::enums::get_enum_names<
        EnumType, internal::enums::is_flag_enum<EnumType>>();
    return internal::enums::names_to_underlying_enumerator_named_tuple(names);
  }

  // Returns an std::array containing pairs of enumerator names (as
  // std::string_view) and values.
  template <internal::enums::is_scoped_enum EnumType>
  constexpr auto get_enumerator_array() {
    constexpr auto names = internal::enums::get_enum_names<
        EnumType, internal::enums::is_flag_enum<EnumType>>();
    return internal::enums::names_to_enumerator_array(names);
  }

  // Returns an std::array containing pairs of enumerator names (as
  // std::string_view) and underlying values.
  template <internal::enums::is_scoped_enum EnumType>
  constexpr auto get_underlying_enumerator_array() {
    constexpr auto names = internal::enums::get_enum_names<
        EnumType, internal::enums::is_flag_enum<EnumType>>();
    return internal::enums::names_to_underlying_enumerator_array(names);
  }

} // namespace rfl

#endif // RFL_ENUMS_HPP_