Costum Swift operators

test.swift

prefix operator∫ { }
postfix operator∫ { }

class Pakets
{
    enum PaketID: Int {
        case Login
    }
    
    class ID
    {
        var data: Dictionary<String, AnyObject> = [:]
        
        init(id: PaketID) {
            data["id"] = id.toRaw()
        }
        
        func toJSON() -> String? {
            if let serialized = NSJSONSerialization.dataWithJSONObject(data, options: .allZeros, error: nil) {
                return NSString(data: serialized, encoding: NSUTF8StringEncoding)
            }
            
            return nil
        }
    }
    
    class Login : ID
    {
        init(userName: String, password: String)
        {
            super.init(id: .Login)
            
            data["userName"] = userName
            data["password"] = password
        }
    }
}

prefix func ∫ (data: Pakets.ID) -> String? {
    return data.toJSON()
}

postfix func ∫ (data: Pakets.ID) -> String? {
    return ∫data
}

prefix func ∫ (data: String) -> NSDictionary? {
    if let obj = NSJSONSerialization.JSONObjectWithData(data.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, options: .AllowFragments, error: nil) as? NSDictionary {
        return obj
    }
    
    return nil
}

postfix func ∫ (data: String) -> NSDictionary? {
    return ∫data
}

if let data = ∫Pakets.Login(userName: "aasdf", password: "asdfasfsaf") {
    println("Serialisierung: \(data)")
    
    if let obj = ∫data {
        let id: AnyObject = obj["id"]!
        let userName: AnyObject = obj["userName"]!
        let password: AnyObject = obj["password"]!
        
        println("ID: \(id), userName: \(userName), password: \(password)")
    }
}