"with" in parameter names in Swift initialisers

Question

This initialiser will cause an error complaining that "with" is implied for the first parameter of an initialiser; did you mean name?

init(withName: String){

}

I'm not sure what this means, if it provides automagically the withName external parameter name if I call it name or what...

If I change it to

init(name: String){

}

any attempt at calling it init(with: "joe") or init(withName: "Joe") will fail. So I have no idea what the error message is telling me and how I can declare it so I call it init(withName: "joe").

Answer 1

In Swift you should not add with to the initializer. The initializer should be init(name:) and you should call it as Object(name: "joe").

This is because of how Swift methods bridge to ObjC. In ObjC, that initializer will automatically be translated to initWithName:. If you named it init(withName:) it would become initWithWithName:.