handle possible unknown queues

24i · May 11, 2019 · f6be54a · f6be54a
1 parent a27469d
commit f6be54a
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/Sources/Async/Async.swift b/Sources/Async/Async.swift
@@ -762,6 +762,7 @@ public extension DispatchQoS.QoSClass {
             case .utility: return "Utility"
             case .background: return "Background"
             case .unspecified: return "Unspecified"
+            @unknown default: return "Unknown"
             }
         }
     }