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  1. #include <iostream>
  2. #include <vector>
  3. #include <memory>
  4.  
  5. struct Wheel;
  6. struct Engine;
  7. struct Pipe;
  8.  
  9. template<class T>
  10. using Ptr = std::unique_ptr<T>;
  11.  
  12. struct Component
  13. {
  14.     virtual ~Component() = default;
  15. };
  16.  
  17. struct Car
  18. {
  19.     Car() { std::cout << "Yoba car ctor called\n"; }
  20.     ~Car() { std::cout << "Car dtor called.\n"; }
  21.  
  22.     std::vector<Ptr<Component>> m_carComponents;
  23.  
  24.     template<typename T, typename... TArgs> 
  25.     void createComponent(TArgs&&... mArgs)
  26.     {
  27.         auto result(new T(std::forward<TArgs>(mArgs)...));
  28.         m_carComponents.push_back(Ptr<Component>(result));
  29.     }
  30. };
  31.  
  32. struct Wheel : public Component
  33. {
  34.     Wheel(Car& car)
  35.         : m_car(car)
  36.     {
  37.         std::cout << "Wheel attached to car.\n";
  38.     }
  39.  
  40.     ~Wheel() { std::cout << "Wheel dtor.\n"; }
  41.  
  42.     Car&    m_car;
  43. };
  44.  
  45. // аналогично остальные ебучие классы 
  46.  
  47. int main()
  48. {
  49.     Ptr<Car> car = std::make_unique<Car>();
  50.     car->createComponent<Wheel>(*car);
  51.  
  52.  
  53.     return 0;
  54. }
Success #stdin #stdout 0s 3464KB
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stdin
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Standard input is empty
stdout
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Yoba car ctor called
Wheel attached to car.
Car dtor called.
Wheel dtor.
https://ideone.com/6Y4gHz
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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