Creators.h

#pragma once
 
#include <memory>
 
namespace spark::patterns::details
{
    template <typename BaseType, typename... Args>
    class BaseCreator
    {
    public:
        using BasePtr = std::unique_ptr<BaseType>;
 
    public:
        virtual ~BaseCreator() = default;
        [[nodiscard]] virtual BasePtr create(Args&&... args) const = 0;
    };
 
    template <typename BaseType, typename DerivedType, typename... Args>
    class DerivedCreator final : public BaseCreator<BaseType, Args...>
    {
    public:
        [[nodiscard]] typename BaseCreator<BaseType, Args...>::BasePtr create(Args&&... args) const override
        {
            return std::make_unique<DerivedType>(std::forward<Args>(args)...);
        }
    };
}