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  1. #include <iostream>
  2. #include <memory>
  3.  
  4. class Controller;
  5.  
  6. class View {
  7. public:
  8. 	~View() {
  9. 		std::cout << "Disposing View" << std::endl;
  10. 	}
  11.  
  12. 	void SetObserver(std::shared_ptr<Controller> a_observer) {
  13. 		observer = a_observer;
  14. 	}
  15. private:
  16. 	std::shared_ptr<Controller> observer;
  17. };
  18.  
  19. class Controller : public std::enable_shared_from_this<Controller> {
  20. public:
  21. 	static std::shared_ptr<Controller> Create(std::unique_ptr<View> view) {
  22. 		//Can't use std::make_shared due to visibility rules :(
  23. 		auto controller = std::shared_ptr<Controller>(new Controller(std::move(view)));
  24.  
  25. 		controller->Init();
  26.  
  27. 		return controller;
  28. 	}
  29.  
  30. 	~Controller() {
  31. 		std::cout << "Disposing Controller" << std::endl;
  32. 	}
  33. private:
  34. 	std::unique_ptr<View> view;
  35.  
  36. 	explicit Controller(std::unique_ptr<View> a_view) : view(std::move(a_view)) {}
  37.  
  38. 	Controller(const Controller&) = delete;
  39.  
  40. 	void Init() {
  41. 		view->SetObserver(shared_from_this());
  42. 	}
  43. };
  44.  
  45. int main() {
  46. 	auto view = std::make_unique<View>();
  47.  
  48. 	auto controller = Controller::Create(std::move(view));
  49.  
  50. 	return 0;
  51. }
Success #stdin #stdout 0s 3412KB
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https://ideone.com/fcgt33
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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