implement BinaryMarshaler and BinaryUnmarshaler

level/level.go

@@ -1,6 +1,7 @@
 package level
 
 import (
+	"encoding"
 	"encoding/json"
 	"strings"
 )
@@ -10,6 +11,10 @@ import (
 var (
 	_ json.Marshaler             = Level(0)
 	_ json.Unmarshaler           = (*Level)(nil)
+	_ encoding.TextMarshaler     = Level(0)
+	_ encoding.TextUnmarshaler   = (*Level)(nil)
+	_ encoding.BinaryMarshaler   = Level(0)
+	_ encoding.BinaryUnmarshaler = (*Level)(nil)
 )
 
 // Level log.
@@ -57,6 +62,17 @@ func (l *Level) UnmarshalText(in []byte) error {
 	return nil
 }
 
+func (l Level) MarshalBinary() ([]byte, error) {
+	return []byte(l.String()), nil
+}
+
+func (l *Level) UnmarshalBinary(in []byte) error {
+	lvl := Parse(string(in))
+	*l = lvl
+
+	return nil
+}
+
 func Parse(lvl string) Level {
 	switch strings.ToLower(lvl) {
 	case "debug", "Debug", "DEBUG":