CODEWITHSUNDEEP
swiftswift-protocols
Reimond Hill
Reimond Hill

Reputation: 4760

Protocols containing redeclared properties

I have been trying to find an answer to understand the "under the hook" or "technicalities" on whether or not the following code should be or not be avoided:

protocol Member {
    var id: String: { get }
    var name: String { get }
}

protocol RegularMember: Member {
    var name: String { get }
    ...
}

RegularMember declares the same property name that Member also declares.

I have had this question always in my head and always assumed that it was bad practice but never got further than that.

Does anyone have different thoughts?

Upvotes: 0

Views: 52

Answers (1)

matt
matt

Reputation: 534950

However, Xcode is not showing neither a warning nor an error.

Because it isn't wrong for protocol B that conforms to protocol A to repeat requirements from protocol A. Quite the contrary! It doesn't change the meaning of anything, and in fact, it's good practice stylistically because it can make your code more readable; the Swift Standard Library does it a lot.

Upvotes: 2

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