ducky/devices

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/vendor/code.secondbit.org/uuid.hg/uuid.go	Thu Nov 12 20:33:26 2015 -0800
     1.3 @@ -0,0 +1,131 @@
     1.4 +package uuid
     1.5 +
     1.6 +import (
     1.7 +	"database/sql/driver"
     1.8 +	"encoding/json"
     1.9 +	"encoding/xml"
    1.10 +	"errors"
    1.11 +
    1.12 +	"code.google.com/p/go-uuid/uuid"
    1.13 +)
    1.14 +
    1.15 +var InvalidIDError = errors.New("Invalid ID format.")
    1.16 +
    1.17 +type ID uuid.UUID
    1.18 +
    1.19 +func NewID() ID {
    1.20 +	return ID(uuid.NewRandom())
    1.21 +}
    1.22 +
    1.23 +func (id ID) String() string {
    1.24 +	return uuid.UUID(id).String()
    1.25 +}
    1.26 +
    1.27 +func (id ID) IsZero() bool {
    1.28 +	if id == nil {
    1.29 +		return true
    1.30 +	}
    1.31 +	if len(id) == 0 {
    1.32 +		return true
    1.33 +	}
    1.34 +	return false
    1.35 +}
    1.36 +
    1.37 +func (id ID) Copy() ID {
    1.38 +	resp, _ := Parse(id.String())
    1.39 +	// ignore the error because they asked for a copy of the ID, they
    1.40 +	// never asked if it was valid or not.
    1.41 +	// This is, overall, not the most efficient way to do this (we're
    1.42 +	// essentially converting to a string and then back again) but the
    1.43 +	// computational complexity involved is pretty minor, and it allows
    1.44 +	// us to respect the boundaries between the packages, using only the
    1.45 +	// exported interfaces to perform a copy. And that seems pretty
    1.46 +	// valuable.
    1.47 +	return resp
    1.48 +}
    1.49 +
    1.50 +func (id ID) MarshalJSON() ([]byte, error) {
    1.51 +	return json.Marshal(id.String())
    1.52 +}
    1.53 +
    1.54 +func (id ID) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
    1.55 +	return e.EncodeElement(id.String(), start)
    1.56 +}
    1.57 +
    1.58 +func (id ID) Value() (driver.Value, error) {
    1.59 +	return id.String(), nil
    1.60 +}
    1.61 +
    1.62 +func (id *ID) Scan(src interface{}) error {
    1.63 +	if src == nil {
    1.64 +		id = nil
    1.65 +		return nil
    1.66 +	}
    1.67 +	switch src.(type) {
    1.68 +	case []byte:
    1.69 +		if len(src.([]byte)) == 0 {
    1.70 +			*id = (*id)[:0]
    1.71 +			return nil
    1.72 +		}
    1.73 +		newID, err := Parse(string(src.([]byte)))
    1.74 +		if err != nil {
    1.75 +			return err
    1.76 +		}
    1.77 +		*id = append((*id)[:0], newID...)
    1.78 +		return nil
    1.79 +	case string:
    1.80 +		if len(src.(string)) == 0 {
    1.81 +			*id = (*id)[:0]
    1.82 +			return nil
    1.83 +		}
    1.84 +		newID, err := Parse(src.(string))
    1.85 +		if err != nil {
    1.86 +			return err
    1.87 +		}
    1.88 +		*id = append((*id)[:0], newID...)
    1.89 +		return nil
    1.90 +	default:
    1.91 +		return InvalidIDError
    1.92 +	}
    1.93 +	return nil
    1.94 +}
    1.95 +
    1.96 +func (id *ID) UnmarshalJSON(in []byte) error {
    1.97 +	var tmp string
    1.98 +	err := json.Unmarshal(in, &tmp)
    1.99 +	if err != nil {
   1.100 +		return err
   1.101 +	}
   1.102 +	newID, err := Parse(tmp)
   1.103 +	if err != nil {
   1.104 +		return err
   1.105 +	}
   1.106 +	*id = append((*id)[:0], newID...)
   1.107 +	return nil
   1.108 +}
   1.109 +
   1.110 +func (id *ID) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
   1.111 +	var tmp string
   1.112 +	err := d.DecodeElement(&tmp, &start)
   1.113 +	if err != nil {
   1.114 +		return err
   1.115 +	}
   1.116 +	newID, err := Parse(tmp)
   1.117 +	if err != nil {
   1.118 +		return err
   1.119 +	}
   1.120 +	*id = append((*id)[:0], newID...)
   1.121 +	return nil
   1.122 +}
   1.123 +
   1.124 +func Parse(in string) (ID, error) {
   1.125 +	id := ID(uuid.Parse(in))
   1.126 +	if id == nil {
   1.127 +		return id, InvalidIDError
   1.128 +	}
   1.129 +	return id, nil
   1.130 +}
   1.131 +
   1.132 +func (id ID) Equal(other ID) bool {
   1.133 +	return uuid.Equal(uuid.UUID(id), uuid.UUID(other))
   1.134 +}