go/uuid
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Code Issues Releases Activity

Minor cleanup.

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This commit is contained in:
Paul Borman 2021-07-12 17:33:52 -05:00
parent e28eb7b914
commit 44b5fee7c4
1 changed files with 11 additions and 13 deletions
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24
null.go
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@ -11,8 +11,10 @@ import (
"fmt"
)
var jsonNull = []byte("null")
// NullUUID represents a UUID that may be null.
// NullUUID implements the Scanner interface so
// NullUUID implements the SQL driver.Scanner interface so
// it can be used as a scan destination:
//
// var u uuid.NullUUID
@ -29,7 +31,7 @@ type NullUUID struct {
Valid bool // Valid is true if UUID is not NULL
}
// Scan implements the Scanner interface.
// Scan implements the SQL driver.Scanner interface.
func (nu *NullUUID) Scan(value interface{}) error {
if value == nil {
nu.UUID, nu.Valid = Nil, false
@ -80,7 +82,7 @@ func (nu NullUUID) MarshalText() ([]byte, error) {
return nu.UUID.MarshalText()
}
return []byte{110, 117, 108, 108}, nil
return jsonNull, nil
}
// UnmarshalText implements encoding.TextUnmarshaler.
@ -101,20 +103,16 @@ func (nu NullUUID) MarshalJSON() ([]byte, error) {
return json.Marshal(nu.UUID)
}
return json.Marshal(nil)
return jsonNull, nil
}
// UnmarshalJSON implements json.Unmarshaler.
func (nu *NullUUID) UnmarshalJSON(data []byte) error {
null := []byte{110, 117, 108, 108}
if bytes.Equal(data, null) {
if bytes.Equal(data, jsonNull) {
*nu = NullUUID{}
return nil // valid null UUID
}
var u UUID
// tossing as we know u is valid
_ = json.Unmarshal(data, &u)
nu.Valid = true
nu.UUID = u
return nil
err := json.Unmarshal(data, &nu.UUID)
nu.Valid = err == nil
return err
}