Concepts.hpp

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#ifndef GALAXY_META_CONCEPTS_HPP_
#define GALAXY_META_CONCEPTS_HPP_
 
#include <concepts>
#include <string>
#include <type_traits>
 
namespace galaxy
{
    namespace meta
    {
        template<typename Type>
        concept is_class = std::is_class<Type>::value;
 
        template<typename Type>
        concept not_memory = !std::is_pointer<Type>::value && !std::is_reference<Type>::value && std::is_object<Type>::value;
 
        template<typename Type>
        concept is_arithmetic = std::is_arithmetic<Type>::value;
 
        template<typename Type>
        concept standard_type = is_arithmetic<Type> || std::is_same<std::string, Type>::value;
 
        template<typename Type>
        concept is_object = std::is_object<Type>::value;
 
        template<typename Type>
        concept is_bitset_flag = requires(Type type) { Type::value >= 0 && Type::value <= 7 && std::is_same<decltype(Type::value), unsigned short>::value; };
 
        template<typename Type>
        concept valid_component = std::is_move_assignable<Type>::value && std::is_move_constructible<Type>::value && std::is_class<Type>::value;
 
        template<typename Loader, typename Resource>
        concept is_loader = requires(Loader loader) { loader.operator() && std::is_class<Loader>::value; };
    } // namespace meta
} // namespace galaxy
 
#endif