gistfile1.txt

struct Size {
    static var L = Size(size: 1)
    static var M = Size(size: 2)
    static var S = Size(size: 3)
    
    private var size: Int
    private init(size: Int){
        self.size = size
    }
    
    var rawValue: Int {
        return size
    }
}
    
var size: Size? = nil
    
func onSizeSelected(size: Size) {
    self.size = size
}
    
func onSizeCleared() {
    self.size = nil
}
    
@IBAction func onSendButtonTouched() {
    if let size = self.size {
        send(size)
    } else {
        // Dialog.show("サイズを選択してください")
    }
}

func send(size: Size) {
    // Post.request(url,parameter:["size" : size.rawValue]).execute()
}