King-God-Emperor-ChungMuGong-Majesti-General-Development Master God GyungDal

GyungdalTopRanker.swift

enum Rank {
    case top
    case mid
    case low

    func whoIsHim() -> String {
        if self == .top { return "GyungDal" }
        return "I don't know"
    }
}

enum RankError: Error {
    case HeIsDenying
}

struct GyungDal {
    public private(set) var rank = Rank.top
    var isHeThinksHeIsNotTopRanker = true

    func checkHim() throws {
        if isHeThinksHeIsNotTopRanker {
            throw RankError.HeIsDenying
        } else {
            print("Yeah. GyungDal is Top Ranker")
        }
    }

    init() {}
}

var gyungDal = GyungDal()
do {
    try gyungDal.checkHim()
} catch RankError.HeIsDenying {
    print("Fuck. He is denying that he is top ranker!!")
    print("We should change his mind.")
    gyungDal.isHeThinksHeIsNotTopRanker = false
    dump(gyungDal)
    print("Jung2GooHyun Done.")
    try gyungDal.checkHim()
}