Function DecodeEnumValueImpl

library/cpp/yt/string/enum.cpp:19–33

template <bool ThrowOnError>
std::optional<std::string> DecodeEnumValueImpl(TStringBuf value)
{
    auto camelValue = UnderscoreCaseToCamelCase(value);
    auto underscoreValue = CamelCaseToUnderscoreCase(camelValue);
    if (value != underscoreValue) {
        if constexpr (ThrowOnError) {
            throw TSimpleException(Format("Enum value %Qv is not in a proper underscore case; did you mean %Qv?",
                value,
                underscoreValue));
        } else {
            return std::nullopt;
        }
    }
    return camelValue;
}

} // namespace NDetail