Update sing-box core, refactor MASQUE, update XHTTP

cmd/sing-box/cmd_geoip_export.go

@@ -61,16 +61,17 @@ func geoipExport(countryCode string) error {
 		outputFile   *os.File
 		outputWriter io.Writer
 	)
-	if flagGeoipExportOutput == "stdout" {
+	switch flagGeoipExportOutput {
+	case "stdout":
 		outputWriter = os.Stdout
-	} else if flagGeoipExportOutput == flagGeoipExportDefaultOutput {
+	case flagGeoipExportDefaultOutput:
 		outputFile, err = os.Create("geoip-" + countryCode + ".json")
 		if err != nil {
 			return err
 		}
 		defer outputFile.Close()
 		outputWriter = outputFile
-	} else {
+	default:
 		outputFile, err = os.Create(flagGeoipExportOutput)
 		if err != nil {
 			return err

cmd/sing-box/cmd_geosite_export.go

@@ -43,16 +43,17 @@ func geositeExport(category string) error {
 		outputFile   *os.File
 		outputWriter io.Writer
 	)
-	if commandGeositeExportOutput == "stdout" {
+	switch commandGeositeExportOutput {
+	case "stdout":
 		outputWriter = os.Stdout
-	} else if commandGeositeExportOutput == commandGeositeExportDefaultOutput {
+	case commandGeositeExportDefaultOutput:
 		outputFile, err = os.Create("geosite-" + category + ".json")
 		if err != nil {
 			return err
 		}
 		defer outputFile.Close()
 		outputWriter = outputFile
-	} else {
+	default:
 		outputFile, err = os.Create(commandGeositeExportOutput)
 		if err != nil {
 			return err

cmd/sing-box/cmd_tools_fetch_http3.go

@@ -1,3 +1,5 @@
+//go:build with_quic
+
 package main
 
 import (