Clippy fixes

Author: sfackler

codegen/src/type_gen.rs

@@ -144,9 +144,8 @@ impl<'a> DatParser<'a> {
 
     fn eof(&mut self) {
         self.skip_ws();
-        match self.it.next() {
-            Some((_, ch)) => panic!("expected eof but got {}", ch),
-            None => {}
+        if let Some((_, ch)) = self.it.next() {
+            panic!("expected eof but got {}", ch);
         }
     }
 

postgres-native-tls/src/lib.rs

@@ -110,6 +110,7 @@ where
 {
     type Stream = TlsStream<S>;
     type Error = native_tls::Error;
+    #[allow(clippy::type_complexity)]
     type Future = Pin<
         Box<dyn Future<Output = Result<(TlsStream<S>, ChannelBinding), native_tls::Error>> + Send>,
     >;

postgres-openssl/src/lib.rs

@@ -132,6 +132,7 @@ where
 {
     type Stream = SslStream<S>;
     type Error = HandshakeError<S>;
+    #[allow(clippy::type_complexity)]
     type Future = Pin<
         Box<dyn Future<Output = Result<(SslStream<S>, ChannelBinding), HandshakeError<S>>> + Send>,
     >;

tokio-postgres/src/query.rs

@@ -133,8 +133,8 @@ where
     );
     match r {
         Ok(()) => Ok(buf),
-        Err(frontend::BindError::Conversion(e)) => return Err(Error::to_sql(e, error_idx)),
-        Err(frontend::BindError::Serialization(e)) => return Err(Error::encode(e)),
+        Err(frontend::BindError::Conversion(e)) => Err(Error::to_sql(e, error_idx)),
+        Err(frontend::BindError::Serialization(e)) => Err(Error::encode(e)),
     }
 }