Add option to disallow unknown fields

2023-02-21 02:02:04 -05:00
parent 7fa4b32dd0
commit e717b9c6db
3 changed files with 32 additions and 5 deletions
--- a/nbt/decode.go
+++ b/nbt/decode.go
@ -370,10 +370,10 @@ func (d *Decoder) unmarshal(val reflect.Value, tagType byte) error {
 					if err != nil {
 						return fmt.Errorf("fail to decode tag %q: %w", tn, err)
 					}
-				} else {
-					if err := d.rawRead(tt); err != nil {
-						return err
-					}
+				} else if d.disallowUnknownFields {
+					return fmt.Errorf("unknown field %q", tn)
+				} else if err := d.rawRead(tt); err != nil {
+					return err
 				}
 			}
 		case reflect.Map: