エラー、出てくれるのね(｡ ・ω・)) #CodePiece #cswift

CodePiece.swift

protocol A {
    func protocolAFunc ();
}

protocol B {
    func protocolBFunc ();
}

struct Sample {
    func protocolAFunc() {
        print("not extension A")
    }
}

extension Sample: A {
    func protocolAFunc() {
        print("extension A")
    }
}

let a = Sample()
a.protocolAFunc()