How to call delegate methods from other class in Swift?

What is the word or phrase you'd use to describe an inheritance relationship where subclasses are expected to call base class methods they override?

• Example - a test class hierarchy where Subclass::Setup() is expected to call Base::Setup()

• Answer:

  There is no name for it because this is an error prone pattern that should be avoided. A more correct implementation would be : Abstract Base class : public: virtual void test(){ // common setup this->abstractTest(); } protected: virtual abstract void abstractTest(); The subclass must implement the abstractTest method and the class is tested by calling the test method.