CustomNSError

gistfile1.txt

@objc public enum AppContextError: Int, CustomStringConvertible, CustomNSError, LocalizedError {

  case badParameters
  case unknownError
  case connectNotSupported

  public static var errorDomain: String {
    return "AppContextError"
  }

  public var errorCode: Int {
    return rawValue
  }

  public var errorUserInfo: [String : Any] {
    return ["ErrorDescription": description]
  }

  public var description: String {
    switch self {
    case .badParameters:
      return "Bad parameters"
    case .unknownError:
      return "Unknown error"
    case .connectNotSupported:
      return "Platform does not support connect"
    }
  }

  public var errorDescription: String? {
    return description
  }
}