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iOS Protocols in Swift Creating Flexible Objects Using Protocols Protocol Inheritance

Posted by John Gu
John Gu
6,891 Points

struct Dog not conforming to protocol

I'm trying to set the struct Dog to conform to the protocol, per the challenge, but I can't figure out what I'm doing wrong vis-a-vis the challenge. The struct has all the variables in the protocols, but it still is not accepted by the treehouse compiler.

protocols.swift 
protocol Animal {
    var numberOfLegs: Int { get }
}

protocol Pet : Animal {

    var cuddlyName: String { get }
}

struct Dog : Pet {
  let numberOfLegs : Int
  let cuddlyName : String
}

1 Answer

Claire Worrmald
Claire Worrmald
6,442 Points
Claire Worrmald
Claire Worrmald
6,442 Points

My code is exactly the same as yours and I was able to pass through to the next video and have the challenge completed. Hmmm must be something up teamtreehouse website, do a hard refresh, empty your cache and use safari and try again. Because I have tried again and my solution goes through ok again.

protocol Animal {
    var numberOfLegs: Int { get }
}

protocol Pet: Animal {
    var cuddlyName: String { get }
}

struct Dog: Pet {
    var cuddlyName: String
    var numberOfLegs: Int
}