Overriden method not called?

Question

Class B is subclass of class A (B : A)

I initialise the class as B.init()

When invoked in A, the overriden method() is never called unless I use the cast:

class A {
    ...
    self.method() //A method called
    (self as! B).method() //B method called
}

Why?

Since I initialise the instance as B, I expect it's calling the overriden method, but this is not true, unless I use the cast.

Answer 1

I think you have some mistake behind scenes. I constructed your example and it works as expected:

class A {
    func method() {
        print("A")
    }
    func check() {
        method()
        (self as? B)?.method()
    }
}
class B: A {
    override func method() {
        print("B")
    }
}

Somewhere else:

let b = B()
b.check()
//B
//B