| // Copyright 2014 Google Inc. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package uuid |
| |
| import "errors" |
| |
| func (u UUID) MarshalJSON() ([]byte, error) { |
| if len(u) == 0 { |
| return []byte(`""`), nil |
| } |
| return []byte(`"` + u.String() + `"`), nil |
| } |
| |
| func (u *UUID) UnmarshalJSON(data []byte) error { |
| if len(data) == 0 || string(data) == `""` { |
| return nil |
| } |
| if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' { |
| return errors.New("invalid UUID format") |
| } |
| data = data[1 : len(data)-1] |
| uu := Parse(string(data)) |
| if uu == nil { |
| return errors.New("invalid UUID format") |
| } |
| *u = uu |
| return nil |
| } |
