From 329f6b90f7761ceef56b5fecd2f0378c68e2bc70 Mon Sep 17 00:00:00 2001
From: John Guo <john@johng.cn>
Date: Fri, 11 Mar 2022 15:26:01 +0800
Subject: [PATCH] improve gutil.Dump feature

---
 util/gutil/gutil_dump.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util/gutil/gutil_dump.go b/util/gutil/gutil_dump.go
index 32cc09589..9dde76fd4 100644
--- a/util/gutil/gutil_dump.go
+++ b/util/gutil/gutil_dump.go
@@ -87,7 +87,7 @@ func doDump(value interface{}, indent string, buffer *bytes.Buffer, option doDum
 	var reflectValue reflect.Value
 	if v, ok := value.(reflect.Value); ok {
 		reflectValue = v
-		if v.CanInterface() {
+		if v.IsValid() && v.CanInterface() {
 			value = v.Interface()
 		} else {
 			if convertedValue, ok := reflection.ValueToInterface(v); ok {
@@ -410,7 +410,7 @@ func doDumpBool(in doDumpInternalInput) {
 
 func doDumpDefault(in doDumpInternalInput) {
 	var s string
-	if in.ReflectValue.CanInterface() {
+	if in.ReflectValue.IsValid() && in.ReflectValue.CanInterface() {
 		s = fmt.Sprintf("%v", in.ReflectValue.Interface())
 	}
 	if s == "" {