Overriding methods in Swift extensions

Question

I tend to only put the necessities (stored properties, initializers) into my class definitions and move everything else into their own extension, kind of like a

Answer 1

Use POP (Protocol-Oriented Programming) to override functions in extensions.

protocol AProtocol {
    func aFunction()
}

extension AProtocol {
    func aFunction() {
        print("empty")
    }
}

class AClass: AProtocol {

}

extension AClass {
    func aFunction() {
        print("not empty")
    }
}

let cls = AClass()
cls.aFunction()