improve middleware feature for ghttp.Server

debug/gdebug/gdebug.go

@@ -11,6 +11,7 @@ import (
 	"bytes"
 	"fmt"
 	"path/filepath"
+	"reflect"
 	"runtime"
 	"strconv"
 	"strings"
@@ -244,3 +245,21 @@ func CallerFileLineShort() string {
 	_, path, line := Caller()
 	return fmt.Sprintf(`%s:%d`, filepath.Base(path), line)
 }
+
+// FuncPath returns the complete function path of given <f>.
+func FuncPath(f interface{}) string {
+	return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
+}
+
+// FuncName returns the function name of given <f>.
+func FuncName(f interface{}) string {
+	path := FuncPath(f)
+	if path == "" {
+		return ""
+	}
+	index := strings.LastIndexByte(path, '/')
+	if index < 0 {
+		index = strings.LastIndexByte(path, '\\')
+	}
+	return path[index+1:]
+}