Factory.h

#pragma once


#include <libutl/Object.h>


UTL_NS_BEGIN;

// Factory /////////////////////////////////////////////////////////////////////////////////////////


class Factory : public Object
{
    UTL_CLASS_DECL_ABC(Factory, Object);
    UTL_CLASS_DEFID;

public:
    virtual Object* make(const Object* arg = nullptr) const = 0;
};

// TFactory ////////////////////////////////////////////////////////////////////////////////////////


template <class T>
class TFactory : public Factory
{
    UTL_CLASS_DECL_TPL(TFactory, T, Factory);
    UTL_CLASS_DEFID;

public:
    virtual Object*
    make(const Object* arg = nullptr) const
    {
        ASSERTD(arg == nullptr);
        return new T();
    }

    T*
    makeT(const Object* arg = nullptr) const
    {
        return utl::cast<T>(make(arg));
    }
};


UTL_NS_END;


UTL_CLASS_IMPL_TPL(utl::TFactory, T);