clonable.hxx

#pragma once
 
#include <concepts>
#include <memory>
 
namespace StormByte {
    template<typename SmartPointer, typename T>
    concept ValidSmartPointer = 
        std::same_as<SmartPointer, std::shared_ptr<T>> || 
        std::same_as<SmartPointer, std::unique_ptr<T>>;
 
    template<class T, typename SmartPointer = std::shared_ptr<T>>
    requires ValidSmartPointer<SmartPointer, T> class Clonable {
        public:
            using PointerType   = SmartPointer; 
            template<class Target, typename... Args>
            static PointerType MakePointer(Args&&... args) {
                if constexpr (std::is_same_v<PointerType, std::shared_ptr<T>>) {
                    return std::make_shared<Target>(std::forward<Args>(args)...);
                } else if constexpr (std::is_same_v<PointerType, std::unique_ptr<T>>) {
                    return std::make_unique<Target>(std::forward<Args>(args)...);
                } else {
                    static_assert(false, "Unsupported smart pointer type");
                }
            }
            
            constexpr Clonable()                                            = default;
 
            constexpr Clonable(const Clonable&)                             = default;
 
            constexpr Clonable(Clonable&&) noexcept                         = default;
 
            constexpr Clonable& operator=(const Clonable&)                  = default;
 
            constexpr Clonable& operator=(Clonable&&) noexcept              = default;
 
            virtual constexpr ~Clonable() noexcept                          = default;
 
            virtual PointerType Clone() const                               = 0;
 
            virtual PointerType Move()                                      = 0;
    };
}