Return empty string if Slice field from FlagStrings is nil

2025-12-24 11:50:53 +08:00 · 2020-03-08 18:24:22 +01:00
parent 4e88f5c215
commit 6ec8c1e011
1 changed files with 3 additions and 0 deletions
--- a/flag.go
+++ b/flag.go
@@ -31,6 +31,9 @@ func NewFlagStrings() FlagStrings {

 // String implements the flag.Value interface
 func (f FlagStrings) String() string {
+	if f.Slice == nil {
+		return ""
+	}
 	return strings.Join(*f.Slice, ",")
 }