Swift - Protocol extensions

ProtocolExtensionsSample.swift

//https://speakerdeck.com/realm/natasha-murashev-practical-protocol-oriented-programming?slide=19
import UIKit

protocol Shakeable {
}

extension Shakeable where Self: UIView {
    func shake() {
        print("shake")
    }
}

protocol Jumpable {
}

extension Jumpable where Self: UIView {
    func jump() {
        print("jump")
    }
}

class CustomView: UIView, Shakeable, Jumpable {
    
}

let customView = CustomView()

customView.shake()
customView.jump()