class inheritance enum

enums.swift

import Foundation

class ClassA {
    private lazy var cellType = CellType.footer
    
    init(_ x: Int) {
        self.cellType = .footer
        print("ClassA", self.cellType)
        type(of: self.cellType)
    }
    init() {
        print("class init")
    }
}

extension ClassA {
    enum CellType {
        case header, body, footer
    }
}

class ClassB: ClassA {
    private lazy var cellType = CellType.none
    override init() {
        super.init()
        self.cellType = .none
        print("ClassB", self.cellType)
        type(of: self.cellType)
    }
}

extension ClassB {
    private enum CellType {
        case header, body, footer, none
        init() {
            self = .none
            
        }
    }
}
// no complie time error and warning :)

let classA = ClassA(1)
let classB = ClassB()
let x = classA