Style: cleanup code

adapters/outboundgroup/util.go

@@ -16,16 +16,24 @@ func addrToMetadata(rawAddress string) (addr *C.Metadata, err error) {
 	}
 
 	ip := net.ParseIP(host)
-	if ip != nil {
-		if ip.To4() != nil {
+	if ip == nil {
 		addr = &C.Metadata{
-				AddrType: C.AtypIPv4,
-				Host:     "",
-				DstIP:    ip,
+			AddrType: C.AtypDomainName,
+			Host:     host,
+			DstIP:    nil,
 			DstPort:  port,
 		}
 		return
-		} else {
+	} else if ip4 := ip.To4(); ip4 != nil {
+		addr = &C.Metadata{
+			AddrType: C.AtypIPv4,
+			Host:     "",
+			DstIP:    ip4,
+			DstPort:  port,
+		}
+		return
+	}
+
 	addr = &C.Metadata{
 		AddrType: C.AtypIPv6,
 		Host:     "",
@@ -34,16 +42,6 @@ func addrToMetadata(rawAddress string) (addr *C.Metadata, err error) {
 	}
 	return
 }
-	} else {
-		addr = &C.Metadata{
-			AddrType: C.AtypDomainName,
-			Host:     host,
-			DstIP:    nil,
-			DstPort:  port,
-		}
-		return
-	}
-}
 
 func tcpKeepAlive(c net.Conn) {
 	if tcp, ok := c.(*net.TCPConn); ok {

adapters/provider/parser.go

@@ -40,7 +40,7 @@ func ParseProxyProvider(name string, mapping map[string]interface{}) (ProxyProvi
 		return nil, err
 	}
 
-	var hcInterval uint = 0
+	var hcInterval uint
 	if schema.HealthCheck.Enable {
 		hcInterval = uint(schema.HealthCheck.Interval)
 	}

component/process/process_freebsd_amd64.go

@@ -173,7 +173,7 @@ func (s *searcher) searchSocketPid(socket uint64) (uint32, error) {
 }
 
 func newSearcher(major int) *searcher {
-	var s *searcher = nil
+	var s *searcher
 	switch major {
 	case 11:
 		s = &searcher{

component/process/process_windows.go

@@ -22,8 +22,8 @@ const (
 )
 
 var (
-	getExTcpTable uintptr
-	getExUdpTable uintptr
+	getExTCPTable uintptr
+	getExUDPTable uintptr
 	queryProcName uintptr
 
 	once sync.Once
@@ -35,12 +35,12 @@ func initWin32API() error {
 		return fmt.Errorf("LoadLibrary iphlpapi.dll failed: %s", err.Error())
 	}
 
-	getExTcpTable, err = windows.GetProcAddress(h, tcpTableFunc)
+	getExTCPTable, err = windows.GetProcAddress(h, tcpTableFunc)
 	if err != nil {
 		return fmt.Errorf("GetProcAddress of %s failed: %s", tcpTableFunc, err.Error())
 	}
 
-	getExUdpTable, err = windows.GetProcAddress(h, udpTableFunc)
+	getExUDPTable, err = windows.GetProcAddress(h, udpTableFunc)
 	if err != nil {
 		return fmt.Errorf("GetProcAddress of %s failed: %s", udpTableFunc, err.Error())
 	}
@@ -76,10 +76,10 @@ func findProcessName(network string, ip net.IP, srcPort int) (string, error) {
 	var fn uintptr
 	switch network {
 	case TCP:
-		fn = getExTcpTable
+		fn = getExTCPTable
 		class = tcpTablePidConn
 	case UDP:
-		fn = getExUdpTable
+		fn = getExUDPTable
 		class = udpTablePid
 	default:
 		return "", ErrInvalidNetwork

component/trie/domain.go

@@ -122,11 +122,7 @@ func (t *DomainTrie) search(node *Node, parts []string) *Node {
 		}
 	}
 
-	if c := node.getChild(dotWildcard); c != nil {
-		return c
-	}
-
-	return nil
+	return node.getChild(dotWildcard)
 }
 
 // New returns a new, empty Trie.

component/vmess/h2.go

@@ -90,10 +90,7 @@ func (hc *h2Conn) Close() error {
 	if err := hc.ClientConn.Shutdown(hc.res.Request.Context()); err != nil {
 		return err
 	}
-	if err := hc.Conn.Close(); err != nil {
-		return err
-	}
-	return nil
+	return hc.Conn.Close()
 }
 
 func StreamH2Conn(conn net.Conn, cfg *H2Config) (net.Conn, error) {

proxy/http/server.go

@@ -16,19 +16,19 @@ import (
 	"github.com/Dreamacro/clash/tunnel"
 )
 
-type HttpListener struct {
+type HTTPListener struct {
 	net.Listener
 	address string
 	closed  bool
 	cache   *cache.Cache
 }
 
-func NewHttpProxy(addr string) (*HttpListener, error) {
+func NewHTTPProxy(addr string) (*HTTPListener, error) {
 	l, err := net.Listen("tcp", addr)
 	if err != nil {
 		return nil, err
 	}
-	hl := &HttpListener{l, addr, false, cache.New(30 * time.Second)}
+	hl := &HTTPListener{l, addr, false, cache.New(30 * time.Second)}
 
 	go func() {
 		log.Infoln("HTTP proxy listening at: %s", addr)
@@ -48,12 +48,12 @@ func NewHttpProxy(addr string) (*HttpListener, error) {
 	return hl, nil
 }
 
-func (l *HttpListener) Close() {
+func (l *HTTPListener) Close() {
 	l.closed = true
 	l.Listener.Close()
 }
 
-func (l *HttpListener) Address() string {
+func (l *HTTPListener) Address() string {
 	return l.address
 }
 

proxy/listener.go

@@ -19,7 +19,7 @@ var (
 
 	socksListener     *socks.SockListener
 	socksUDPListener  *socks.SockUDPListener
-	httpListener      *http.HttpListener
+	httpListener      *http.HTTPListener
 	redirListener     *redir.RedirListener
 	redirUDPListener  *redir.RedirUDPListener
 	tproxyListener    *redir.TProxyListener
@@ -78,7 +78,7 @@ func ReCreateHTTP(port int) error {
 	}
 
 	var err error
-	httpListener, err = http.NewHttpProxy(addr)
+	httpListener, err = http.NewHTTPProxy(addr)
 	if err != nil {
 		return err
 	}
@@ -316,9 +316,8 @@ func genAddr(host string, port int, allowLan bool) string {
 	if allowLan {
 		if host == "*" {
 			return fmt.Sprintf(":%d", port)
-		} else {
-			return fmt.Sprintf("%s:%d", host, port)
 		}
+		return fmt.Sprintf("%s:%d", host, port)
 	}
 
 	return fmt.Sprintf("127.0.0.1:%d", port)

rules/process.go

@@ -45,15 +45,15 @@ func (ps *Process) Match(metadata *C.Metadata) bool {
 	return strings.EqualFold(cached.(string), ps.process)
 }
 
-func (p *Process) Adapter() string {
-	return p.adapter
+func (ps *Process) Adapter() string {
+	return ps.adapter
 }
 
-func (p *Process) Payload() string {
-	return p.process
+func (ps *Process) Payload() string {
+	return ps.process
 }
 
-func (p *Process) ShouldResolveIP() bool {
+func (ps *Process) ShouldResolveIP() bool {
 	return false
 }