Fix clippy warnings (#168)

websocket-tcp-chat/src/client.rs

@@ -154,7 +154,7 @@ impl StreamHandler<codec::ChatResponse, io::Error> for ChatClient {
                 for room in rooms {
                     println!("{}", room);
                 }
-                println!("");
+                println!();
             }
             _ => (),
         }

websocket-tcp-chat/src/main.rs

@@ -171,7 +171,7 @@ impl StreamHandler<ws::Message, ws::ProtocolError> for WsChatSession {
                     // send message to chat server
                     self.addr.do_send(server::Message {
                         id: self.id,
-                        msg: msg,
+                        msg,
                         room: self.room.clone(),
                     })
                 }
@@ -212,7 +212,7 @@ impl WsChatSession {
 }
 
 fn main() -> std::io::Result<()> {
-    let _ = env_logger::init();
+    env_logger::init();
     let sys = actix::System::new("websocket-example");
 
     // Start chat server actor

websocket-tcp-chat/src/server.rs

@@ -66,7 +66,7 @@ impl Default for ChatServer {
 
         ChatServer {
             sessions: HashMap::new(),
-            rooms: rooms,
+            rooms,
             rng: rand::thread_rng(),
         }
     }

websocket-tcp-chat/src/session.rs

@@ -138,10 +138,10 @@ impl ChatSession {
     ) -> ChatSession {
         ChatSession {
             id: 0,
-            addr: addr,
+            addr,
             hb: Instant::now(),
             room: "Main".to_owned(),
-            framed: framed,
+            framed,
         }
     }
 
@@ -187,10 +187,8 @@ impl TcpServer {
         // implement stream handler `StreamHandler<(TcpStream,
         // net::SocketAddr), io::Error>`
         TcpServer::create(|ctx| {
-            ctx.add_message_stream(
-                listener.incoming().map_err(|_| ()).map(|s| TcpConnect(s)),
-            );
-            TcpServer { chat: chat }
+            ctx.add_message_stream(listener.incoming().map_err(|_| ()).map(TcpConnect));
+            TcpServer { chat }
         });
     }
 }