uuid
uuid/uuid.go
Update uuid dependency, drop XML support. Drop our XML support (who likes XML? I hope they vendored.) Update the underlying implementation to use its new home on Github. While we're at it, change all the methods to use methods from the underlying implementation, where possible. Looks like the author got around to adding some of the nicer methods for implementing interfaces in the standard library.
1 package uuid
3 import (
4 "database/sql/driver"
5 "errors"
7 "github.com/pborman/uuid"
8 )
10 var InvalidIDError = errors.New("Invalid ID format.")
12 type ID uuid.UUID
14 func NewID() ID {
15 return ID(uuid.NewRandom())
16 }
18 func (id ID) String() string {
19 return uuid.UUID(id).String()
20 }
22 func (id ID) IsZero() bool {
23 if id == nil {
24 return true
25 }
26 if len(id) == 0 {
27 return true
28 }
29 return false
30 }
32 func (id ID) Copy() ID {
33 resp, _ := Parse(id.String())
34 // ignore the error because they asked for a copy of the ID, they
35 // never asked if it was valid or not.
36 // This is, overall, not the most efficient way to do this (we're
37 // essentially converting to a string and then back again) but the
38 // computational complexity involved is pretty minor, and it allows
39 // us to respect the boundaries between the packages, using only the
40 // exported interfaces to perform a copy. And that seems pretty
41 // valuable.
42 return resp
43 }
45 func (id ID) MarshalJSON() ([]byte, error) {
46 return uuid.ID(id).MarshalJSON()
47 }
49 func (id ID) Value() (driver.Value, error) {
50 return uuid.ID(id).Value()
51 }
53 func (id *ID) Scan(src interface{}) error {
54 return (*uuid.ID)(id).Scan(src)
55 }
57 func (id *ID) UnmarshalJSON(in []byte) error {
58 return (*uuid.ID)(id).UnmarshalJSON(in)
59 }
61 func Parse(in string) (ID, error) {
62 id := ID(uuid.Parse(in))
63 if id == nil {
64 return id, InvalidIDError
65 }
66 return id, nil
67 }
69 func (id ID) Equal(other ID) bool {
70 return uuid.Equal(uuid.UUID(id), uuid.UUID(other))
71 }