Replace interface{} with any type alias

This change maintains full backward compatibility while adopting
modern Go type alias conventions for better code clarity.

Signed-off-by: Xiaobo Liu <cppcoffee@gmail.com>

active_tcp_test.go

@@ -206,7 +206,7 @@ func TestActiveTCP_NonBlocking(t *testing.T) {
 		require.NoError(t, bAgent.Close())
 	}()
 
-	isConnected := make(chan interface{})
+	isConnected := make(chan any)
 	err = aAgent.OnConnectionStateChange(func(c ConnectionState) {
 		if c == ConnectionStateConnected {
 			close(isConnected)
@@ -269,7 +269,7 @@ func TestActiveTCP_Respect_NetworkTypes(t *testing.T) {
 		require.NoError(t, bAgent.Close())
 	}()
 
-	isConnected := make(chan interface{})
+	isConnected := make(chan any)
 	err = aAgent.OnConnectionStateChange(func(c ConnectionState) {
 		if c == ConnectionStateConnected {
 			close(isConnected)

agent_test.go

@@ -505,7 +505,7 @@ func TestConnectionStateCallback(t *testing.T) { //nolint:cyclop
 		InterfaceFilter:     problematicNetworkInterfaces,
 	}
 
-	isClosed := make(chan interface{})
+	isClosed := make(chan any)
 
 	aAgent, err := NewAgent(cfg)
 	require.NoError(t, err)
@@ -529,10 +529,10 @@ func TestConnectionStateCallback(t *testing.T) { //nolint:cyclop
 		require.NoError(t, bAgent.Close())
 	}()
 
-	isChecking := make(chan interface{})
-	isConnected := make(chan interface{})
-	isDisconnected := make(chan interface{})
-	isFailed := make(chan interface{})
+	isChecking := make(chan any)
+	isConnected := make(chan any)
+	isDisconnected := make(chan any)
+	isFailed := make(chan any)
 	err = aAgent.OnConnectionStateChange(func(c ConnectionState) {
 		switch c {
 		case ConnectionStateChecking:
@@ -1058,7 +1058,7 @@ func TestConnectionStateFailedDeleteAllCandidates(t *testing.T) {
 		require.NoError(t, bAgent.Close())
 	}()
 
-	isFailed := make(chan interface{})
+	isFailed := make(chan any)
 	require.NoError(t, aAgent.OnConnectionStateChange(func(c ConnectionState) {
 		if c == ConnectionStateFailed {
 			close(isFailed)
@@ -1364,8 +1364,8 @@ func TestCloseInConnectionStateCallback(t *testing.T) {
 		require.NoError(t, bAgent.Close())
 	}()
 
-	isClosed := make(chan interface{})
-	isConnected := make(chan interface{})
+	isClosed := make(chan any)
+	isConnected := make(chan any)
 	err = aAgent.OnConnectionStateChange(func(c ConnectionState) {
 		switch c {
 		case ConnectionStateConnected:
@@ -1414,7 +1414,7 @@ func TestRunTaskInConnectionStateCallback(t *testing.T) {
 		require.NoError(t, bAgent.Close())
 	}()
 
-	isComplete := make(chan interface{})
+	isComplete := make(chan any)
 	err = aAgent.OnConnectionStateChange(func(c ConnectionState) {
 		if c == ConnectionStateConnected {
 			_, _, errCred := aAgent.GetLocalUserCredentials()
@@ -1459,8 +1459,8 @@ func TestRunTaskInSelectedCandidatePairChangeCallback(t *testing.T) {
 		require.NoError(t, bAgent.Close())
 	}()
 
-	isComplete := make(chan interface{})
-	isTested := make(chan interface{})
+	isComplete := make(chan any)
+	isTested := make(chan any)
 	err = aAgent.OnSelectedCandidatePairChange(func(Candidate, Candidate) {
 		go func() {
 			_, _, errCred := aAgent.GetLocalUserCredentials()
@@ -1528,9 +1528,9 @@ func TestLiteLifecycle(t *testing.T) {
 		require.NoError(t, bAgent.Close())
 	}()
 
-	bConnected := make(chan interface{})
-	bDisconnected := make(chan interface{})
-	bFailed := make(chan interface{})
+	bConnected := make(chan any)
+	bDisconnected := make(chan any)
+	bFailed := make(chan any)
 
 	require.NoError(t, bAgent.OnConnectionStateChange(func(c ConnectionState) {
 		switch c {

candidate_base.go

@@ -69,7 +69,7 @@ func (c *candidateBase) Deadline() (deadline time.Time, ok bool) {
 }
 
 // Value implements context.Context.
-func (c *candidateBase) Value(interface{}) interface{} {
+func (c *candidateBase) Value(any) any {
 	return nil
 }
 
@@ -217,7 +217,7 @@ func (c *candidateBase) start(a *Agent, conn net.PacketConn, initializedCh <-cha
 }
 
 var bufferPool = sync.Pool{ // nolint:gochecknoglobals
-	New: func() interface{} {
+	New: func() any {
 		return make([]byte, receiveMTU)
 	},
 }

gather.go

@@ -22,7 +22,7 @@ import (
 )
 
 // Close a net.Conn and log if we have a failure.
-func closeConnAndLog(c io.Closer, log logging.LeveledLogger, msg string, args ...interface{}) {
+func closeConnAndLog(c io.Closer, log logging.LeveledLogger, msg string, args ...any) {
 	if c == nil || (reflect.ValueOf(c).Kind() == reflect.Ptr && reflect.ValueOf(c).IsNil()) {
 		log.Warnf("Connection is not allocated: "+msg, args...)
 

internal/taskloop/taskloop.go

@@ -116,6 +116,6 @@ func (l *Loop) Deadline() (deadline time.Time, ok bool) {
 }
 
 // Value is not supported for task loops.
-func (l *Loop) Value(interface{}) interface{} {
+func (l *Loop) Value(any) any {
 	return nil
 }

udp_mux.go

@@ -116,7 +116,7 @@ func NewUDPMuxDefault(params UDPMuxParams) *UDPMuxDefault { //nolint:cyclop
 		connsIPv6:  make(map[string]*udpMuxedConn),
 		closedChan: make(chan struct{}, 1),
 		pool: &sync.Pool{
-			New: func() interface{} {
+			New: func() any {
 				// Big enough buffer to fit both packet and address
 				return newBufferHolder(receiveMTU)
 			},