chore: Remove unnecessary return and judgement.

cluster/router/tag/tag_router.go

@@ -191,7 +191,6 @@ func (c *tagRouter) Process(event *config_center.ConfigChangeEvent) {
 	defer c.mutex.Unlock()
 	c.tagRouterRule = routerRule
 	c.ruleChanged = true
-	return
 }
 
 // URL gets the url of tagRouter

common/rpc_service.go

@@ -271,7 +271,7 @@ func (sm *serviceMap) UnRegister(interfaceName, protocol, serviceId string) erro
 	sm.mutex.Lock()
 	defer sm.mutex.Unlock()
 	sm.interfaceMap[interfaceName] = make([]*Service, 0, len(svrs))
-	for i, _ := range svrs {
+	for i := range svrs {
 		if i != index {
 			sm.interfaceMap[interfaceName] = append(sm.interfaceMap[interfaceName], svrs[i])
 		}

common/url.go

@@ -222,7 +222,7 @@ func NewURL(urlString string, opts ...option) (URL, error) {
 	}
 
 	// rawUrlString = "//" + rawUrlString
-	if strings.Index(rawUrlString, "//") < 0 {
+	if !strings.Contains(rawUrlString, "//") {
 		t := URL{baseUrl: baseUrl{}}
 		for _, opt := range opts {
 			opt(&t)

config/base_config.go

@@ -78,15 +78,8 @@ func getKeyPrefix(val reflect.Value) []string {
 	} else {
 		prefix = val.MethodByName(configPrefixMethod).Call(nil)[0].String()
 	}
-	var retPrefixes []string
-
-	for _, pfx := range strings.Split(prefix, "|") {
-
-		retPrefixes = append(retPrefixes, pfx)
-
-	}
-	return retPrefixes
 
+	return strings.Split(prefix, "|")
 }
 
 func getPtrElement(v reflect.Value) reflect.Value {
@@ -216,12 +209,9 @@ func setFieldValue(val reflect.Value, id reflect.Value, config *config.InmemoryC
 						prefix := s.MethodByName("Prefix").Call(nil)[0].String()
 						for _, pfx := range strings.Split(prefix, "|") {
 							m := config.GetSubProperty(pfx)
-							if m != nil {
-								for k := range m {
-									f.SetMapIndex(reflect.ValueOf(k), reflect.New(f.Type().Elem().Elem()))
-								}
+							for k := range m {
+								f.SetMapIndex(reflect.ValueOf(k), reflect.New(f.Type().Elem().Elem()))
 							}
-
 						}
 
 					}

config/reference_config.go

@@ -251,5 +251,4 @@ func (c *ReferenceConfig) GenericLoad(id string) {
 	c.id = id
 	c.Refer(genericService)
 	c.Implement(genericService)
-	return
 }

config_center/configurator/override.go

@@ -110,7 +110,7 @@ func (c *overrideConfigurator) configureIfMatchInternal(url *common.URL) {
 func (c *overrideConfigurator) configureIfMatch(host string, url *common.URL) {
 	if constant.ANYHOST_VALUE == c.configuratorUrl.Ip || host == c.configuratorUrl.Ip {
 		providers := c.configuratorUrl.GetParam(constant.OVERRIDE_PROVIDERS_KEY, "")
-		if len(providers) == 0 || strings.Index(providers, url.Location) >= 0 || strings.Index(providers, constant.ANYHOST_VALUE) >= 0 {
+		if len(providers) == 0 || strings.Contains(providers, url.Location) || strings.Contains(providers, constant.ANYHOST_VALUE) {
 			c.configureIfMatchInternal(url)
 		}
 	}

protocol/rest/rest_exporter.go

@@ -49,5 +49,4 @@ func (re *RestExporter) Unexport() {
 	if err != nil {
 		logger.Errorf("[RestExporter.Unexport] error: %v", err)
 	}
-	return
 }

registry/etcdv3/listener_test.go

@@ -63,7 +63,6 @@ func (suite *RegistryTestSuite) SetupSuite() {
 	}
 
 	suite.etcd = e
-	return
 }
 
 // stop etcd server

registry/event/service_revision_customizer.go

@@ -126,7 +126,7 @@ func resolveRevision(urls []interface{}) string {
 
 		// append url params if we need it
 	}
-	sort.Sort(sort.StringSlice(candidates))
+	sort.Strings(candidates)
 
 	// it's nearly impossible to be overflow
 	res := uint64(0)

registry/protocol/protocol.go

@@ -103,7 +103,7 @@ func filterHideKey(url *common.URL) *common.URL {
 
 	// be careful params maps in url is map type
 	removeSet := gxset.NewSet()
-	for k, _ := range url.GetParams() {
+	for k := range url.GetParams() {
 		if strings.HasPrefix(k, ".") {
 			removeSet.Add(k)
 		}

remoting/zookeeper/curator_discovery/service_discovery.go

@@ -154,7 +154,6 @@ func (sd *ServiceDiscovery) updateInternalService(name, id string) {
 		return
 	}
 	entry.instance = instance
-	return
 }
 
 // UnregisterService un-register service in zookeeper and delete service in cache