Appease Clippy

backend/src/chain.rs

@@ -79,10 +79,8 @@ impl Chain {
 
         if &*self.label.0 == label {
             self.label.1 += 1;
-        } else {
-            if count > self.label.1 {
-                self.rename(label.into(), count);
-            }
+        } else if count > self.label.1 {
+            self.rename(label.into(), count);
         }
     }
 
@@ -172,7 +170,7 @@ impl Chain {
             self.block_times.reset();
             self.timestamp = timestamp;
 
-            self.serializer.push(feed::BestBlock(self.best.height, timestamp.unwrap_or_else(|| now), None));
+            self.serializer.push(feed::BestBlock(self.best.height, timestamp.unwrap_or(now), None));
             self.serializer.push(feed::BestFinalized(finalized.height, finalized.hash));
         }
     }
@@ -259,7 +257,7 @@ impl Handler<AddNode> for Chain {
         let nid = self.nodes.add(Node::new(node));
         let chain = ctx.address();
 
-        if let Err(_) = rec.do_send(Initialize { nid, conn_id, chain }) {
+        if rec.do_send(Initialize { nid, conn_id, chain }).is_err() {
             self.nodes.remove(nid);
         } else if let Some(node) = self.nodes.get(nid) {
             self.serializer.push(feed::AddedNode(nid, node));
@@ -456,7 +454,7 @@ impl Handler<Subscribe> for Chain {
         self.serializer.push(feed::TimeSync(now()));
         self.serializer.push(feed::BestBlock(
             self.best.height,
-            self.timestamp.unwrap_or_else(|| 0),
+            self.timestamp.unwrap_or(0),
             self.average_block_time,
         ));
         self.serializer.push(feed::BestFinalized(self.finalized.height, self.finalized.hash));

backend/src/feed.rs

@@ -46,7 +46,7 @@ impl FeedMessageSerializer {
     }
 
     pub fn finalize(&mut self) -> Option<Serialized> {
-        if self.buffer.len() == 0 {
+        if self.buffer.is_empty() {
             return None;
         }
 

backend/src/main.rs

@@ -20,10 +20,10 @@ use node::connector::NodeConnector;
 use types::NodeId;
 use util::{Locator, LocatorFactory};
 
-const VERSION: &'static str = env!("CARGO_PKG_VERSION");
-const AUTHORS: &'static str = env!("CARGO_PKG_AUTHORS");
-const NAME: &'static str = "Substrate Telemetry Backend";
-const ABOUT: &'static str = "This is the Telemetry Backend that injects and provide the data sent by Substrate/Polkadot nodes";
+const VERSION: &str = env!("CARGO_PKG_VERSION");
+const AUTHORS: &str = env!("CARGO_PKG_AUTHORS");
+const NAME: &str = "Substrate Telemetry Backend";
+const ABOUT: &str = "This is the Telemetry Backend that injects and provide the data sent by Substrate/Polkadot nodes";
 
 #[derive(Clap)]
 #[clap(name = NAME, version = VERSION, author = AUTHORS, about = ABOUT)]
@@ -54,9 +54,9 @@ enum LogLevel {
     Trace,
 }
 
-impl Into<log::LevelFilter> for &LogLevel {
-    fn into(self) -> log::LevelFilter {
-        match self {
+impl From<&LogLevel> for log::LevelFilter {
+    fn from(log_level: &LogLevel) -> Self {
+        match log_level {
             LogLevel::Error => log::LevelFilter::Error,
             LogLevel::Warn => log::LevelFilter::Warn,
             LogLevel::Info => log::LevelFilter::Info,
@@ -65,6 +65,7 @@ impl Into<log::LevelFilter> for &LogLevel {
         }
     }
 }
+
 /// Entry point for connecting nodes
 #[get("/submit/")]
 async fn node_route(
@@ -74,7 +75,7 @@ async fn node_route(
     locator: web::Data<Addr<Locator>>,
 ) -> Result<HttpResponse, Error> {
     let ip = req.connection_info().realip_remote_addr().and_then(|mut addr| {
-        if let Some(port_idx) = addr.find(":") {
+        if let Some(port_idx) = addr.find(':') {
             addr = &addr[..port_idx];
         }
         addr.parse::<Ipv4Addr>().ok()

backend/src/node.rs

@@ -89,10 +89,7 @@ impl Node {
     }
 
     pub fn location(&self) -> Option<&NodeLocation> {
-        match self.location {
-            Some(ref location) => Some(&**location),
-            None => None
-        }
+        self.location.as_deref()
     }
 
     pub fn update_location(&mut self, location: Arc<NodeLocation>) {

backend/src/node/connector.rs

@@ -118,7 +118,7 @@ impl NodeConnector {
                         _ => (),
                     }
 
-                    self.aggregator.do_send(AddNode { rec, conn_id, node });
+                    self.aggregator.do_send(AddNode { node, conn_id, rec });
                 } else {
                     if backlog.len() >= 10 {
                         backlog.remove(0);

backend/src/util/location.rs

@@ -26,7 +26,7 @@ impl LocatorFactory {
         // Default entry for localhost
         cache.insert(
             Ipv4Addr::new(127, 0, 0, 1),
-            Some(Arc::new(NodeLocation { latitude: 52.5166667, longitude: 13.4, city: "Berlin".into() })),
+            Some(Arc::new(NodeLocation { latitude: 52.516_6667, longitude: 13.4, city: "Berlin".into() })),
         );
 
         LocatorFactory {
@@ -64,7 +64,7 @@ impl IPApiLocate {
     fn into_node_location(self) -> Option<NodeLocation> {
         let IPApiLocate { city, loc } = self;
 
-        let mut loc = loc.split(",").map(|n| n.parse());
+        let mut loc = loc.split(',').map(|n| n.parse());
 
         let latitude = loc.next()?.ok()?;
         let longitude = loc.next()?.ok()?;
@@ -176,4 +176,4 @@ mod tests {
 
         assert!(location.is_none());
     }
-}
+}