chore: sort methods (#2470)

core/mapping/unmarshaler.go

@@ -205,10 +205,10 @@ func (u *Unmarshaler) processFieldNotFromString(field reflect.StructField, value
 		return u.processFieldStruct(field, value, mapValue, fullName)
 	case valueKind == reflect.Map && typeKind == reflect.Map:
 		return u.fillMap(field, value, mapValue)
-	case valueKind == reflect.String && typeKind == reflect.Slice:
-		return u.fillSliceFromString(fieldType, value, mapValue)
 	case valueKind == reflect.String && typeKind == reflect.Map:
 		return u.fillMapFromString(value, mapValue)
+	case valueKind == reflect.String && typeKind == reflect.Slice:
+		return u.fillSliceFromString(fieldType, value, mapValue)
 	case valueKind == reflect.String && derefedFieldType == durationType:
 		return fillDurationValue(fieldType.Kind(), value, mapValue.(string))
 	default:
@@ -444,6 +444,27 @@ func (u *Unmarshaler) fillMap(field reflect.StructField, value reflect.Value, ma
 	return nil
 }
 
+func (u *Unmarshaler) fillMapFromString(value reflect.Value, mapValue interface{}) error {
+	if !value.CanSet() {
+		return errValueNotSettable
+	}
+
+	switch v := mapValue.(type) {
+	case fmt.Stringer:
+		if err := jsonx.UnmarshalFromString(v.String(), value.Addr().Interface()); err != nil {
+			return err
+		}
+	case string:
+		if err := jsonx.UnmarshalFromString(v, value.Addr().Interface()); err != nil {
+			return err
+		}
+	default:
+		return errUnsupportedType
+	}
+
+	return nil
+}
+
 func (u *Unmarshaler) fillSlice(fieldType reflect.Type, value reflect.Value, mapValue interface{}) error {
 	if !value.CanSet() {
 		return errValueNotSettable
@@ -532,23 +553,6 @@ func (u *Unmarshaler) fillSliceFromString(fieldType reflect.Type, value reflect.
 	return nil
 }
 
-func (u *Unmarshaler) fillMapFromString(value reflect.Value, mapValue interface{}) error {
-	switch v := mapValue.(type) {
-	case fmt.Stringer:
-		if err := jsonx.UnmarshalFromString(v.String(), value.Addr().Interface()); err != nil {
-			return err
-		}
-	case string:
-		if err := jsonx.UnmarshalFromString(v, value.Addr().Interface()); err != nil {
-			return err
-		}
-	default:
-		return errUnsupportedType
-	}
-
-	return nil
-}
-
 func (u *Unmarshaler) fillSliceValue(slice reflect.Value, index int,
 	baseKind reflect.Kind, value interface{}) error {
 	ithVal := slice.Index(index)