             return "isUpToDate"
         case .isComplete:
             return "isComplete"
+        @unknown default:
+            return "unknown"
         }
     }
 }

            return "warning"
        case .error:
            return "error"
        }
    }
}

            return "filteredDirectoryContents"
        case .stat:
            return "stat"
        @unknown default:
            return "unknown-\(rawValue)"
        }
    }
}
