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iOS Swift 2.0 Protocols Creating Flexible Objects Using Protocols Protocol Inheritance

Posted by Fernando Boza
Fernando Boza
25,384 Points

Type does not conform to protocol ...

hey folks, I don't understand how to fix the challenge. If anyone can explain would be appreciated. It's asking me to

"For the next step, create a struct named Dog that conforms to PetType. "

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

protocol PetType: AnimalType {
  var cuddlyName: String { get }
}

struct Dog: PetType {
  func bark() -> String {
    return "\(numberOfLegs)"
  }
}

1 Answer

jcorum
jcorum
71,830 Points

The problem is that your struct doesn't conform to the protocols AnimalType and PetType. You need to implement both stored properties:

struct Dog: PetType {
  var numberOfLegs: Int
  var cuddlyName: String
}
Fernando Boza
Fernando Boza
25,384 Points

thanks jcorum, didn't know I can conform var, though as simple as it seems