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XIONControlPanel/Servers/ServerMultiplex.swift

@@ -17,7 +17,7 @@ protocol ServerMultiplexDelegate
 
 enum ServerMultiplexError : Error
 {
-    case UnknownDevice
+    case unknownDevice
 }
 
 class ServerMultiplex
@@ -26,7 +26,7 @@ class ServerMultiplex
     public private(set) var devices = Set<AnyDevice>()
     
     private var servers: [Server] = []
-    public var numServers: Int { get { return servers.count } }
+    public var numServers: Int { return servers.count }
     
     public func addServer(_ server: Server)
     {
@@ -48,7 +48,7 @@ class ServerMultiplex
                 devices[index].state = state
             }
         } else {
-            completion(ServerMultiplexError.UnknownDevice)
+            completion(ServerMultiplexError.unknownDevice)
         }
     }
     

XIONControlPanel/Servers/WemoServer.swift

@@ -76,17 +76,15 @@ class WemoServer : Server
     func fetchDevices(_ completion: @escaping (Result<[AnyDevice], Error>) -> Void)
     {
         let op = FetchDevicesOperation(baseURL: self.baseURL, session: _urlSession)
-        weak var weakOp = op
-        op.completionBlock = {
-            guard let strongOp = weakOp else { return }
-            if let error = strongOp.error {
+        op.completionBlock = { [unowned op] in
+            if let error = op.error {
                 self._logError("Error fetching devices", error: error)
                 completion(.failure(error))
             } else {
-                self.devices = strongOp.devices
+                self.devices = op.devices
             }
             
-            self.devices = strongOp.devices
+            self.devices = op.devices
             completion(.success(self.devices.map { AnyDevice($0) }))
         }