marshal.go raw

   1  // Copyright 2016 Google Inc.  All rights reserved.
   2  // Use of this source code is governed by a BSD-style
   3  // license that can be found in the LICENSE file.
   4  
   5  package uuid
   6  
   7  import "fmt"
   8  
   9  // MarshalText implements encoding.TextMarshaler.
  10  func (uuid UUID) MarshalText() ([]byte, error) {
  11  	var js [36]byte
  12  	encodeHex(js[:], uuid)
  13  	return js[:], nil
  14  }
  15  
  16  // UnmarshalText implements encoding.TextUnmarshaler.
  17  func (uuid *UUID) UnmarshalText(data []byte) error {
  18  	id, err := ParseBytes(data)
  19  	if err != nil {
  20  		return err
  21  	}
  22  	*uuid = id
  23  	return nil
  24  }
  25  
  26  // MarshalBinary implements encoding.BinaryMarshaler.
  27  func (uuid UUID) MarshalBinary() ([]byte, error) {
  28  	return uuid[:], nil
  29  }
  30  
  31  // UnmarshalBinary implements encoding.BinaryUnmarshaler.
  32  func (uuid *UUID) UnmarshalBinary(data []byte) error {
  33  	if len(data) != 16 {
  34  		return fmt.Errorf("invalid UUID (got %d bytes)", len(data))
  35  	}
  36  	copy(uuid[:], data)
  37  	return nil
  38  }
  39