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|
package pgtype
import (
"database/sql/driver"
"fmt"
"net"
)
type Macaddr struct {
Addr net.HardwareAddr
Status Status
}
func (dst *Macaddr) Set(src interface{}) error {
if src == nil {
*dst = Macaddr{Status: Null}
return nil
}
if value, ok := src.(interface{ Get() interface{} }); ok {
value2 := value.Get()
if value2 != value {
return dst.Set(value2)
}
}
switch value := src.(type) {
case net.HardwareAddr:
addr := make(net.HardwareAddr, len(value))
copy(addr, value)
*dst = Macaddr{Addr: addr, Status: Present}
case string:
addr, err := net.ParseMAC(value)
if err != nil {
return err
}
*dst = Macaddr{Addr: addr, Status: Present}
case *net.HardwareAddr:
if value == nil {
*dst = Macaddr{Status: Null}
} else {
return dst.Set(*value)
}
case *string:
if value == nil {
*dst = Macaddr{Status: Null}
} else {
return dst.Set(*value)
}
default:
if originalSrc, ok := underlyingPtrType(src); ok {
return dst.Set(originalSrc)
}
return fmt.Errorf("cannot convert %v to Macaddr", value)
}
return nil
}
func (dst Macaddr) Get() interface{} {
switch dst.Status {
case Present:
return dst.Addr
case Null:
return nil
default:
return dst.Status
}
}
func (src *Macaddr) AssignTo(dst interface{}) error {
switch src.Status {
case Present:
switch v := dst.(type) {
case *net.HardwareAddr:
*v = make(net.HardwareAddr, len(src.Addr))
copy(*v, src.Addr)
return nil
case *string:
*v = src.Addr.String()
return nil
default:
if nextDst, retry := GetAssignToDstType(dst); retry {
return src.AssignTo(nextDst)
}
return fmt.Errorf("unable to assign to %T", dst)
}
case Null:
return NullAssignTo(dst)
}
return fmt.Errorf("cannot decode %#v into %T", src, dst)
}
func (dst *Macaddr) DecodeText(ci *ConnInfo, src []byte) error {
if src == nil {
*dst = Macaddr{Status: Null}
return nil
}
addr, err := net.ParseMAC(string(src))
if err != nil {
return err
}
*dst = Macaddr{Addr: addr, Status: Present}
return nil
}
func (dst *Macaddr) DecodeBinary(ci *ConnInfo, src []byte) error {
if src == nil {
*dst = Macaddr{Status: Null}
return nil
}
if len(src) != 6 {
return fmt.Errorf("Received an invalid size for a macaddr: %d", len(src))
}
addr := make(net.HardwareAddr, 6)
copy(addr, src)
*dst = Macaddr{Addr: addr, Status: Present}
return nil
}
func (src Macaddr) EncodeText(ci *ConnInfo, buf []byte) ([]byte, error) {
switch src.Status {
case Null:
return nil, nil
case Undefined:
return nil, errUndefined
}
return append(buf, src.Addr.String()...), nil
}
// EncodeBinary encodes src into w.
func (src Macaddr) EncodeBinary(ci *ConnInfo, buf []byte) ([]byte, error) {
switch src.Status {
case Null:
return nil, nil
case Undefined:
return nil, errUndefined
}
return append(buf, src.Addr...), nil
}
// Scan implements the database/sql Scanner interface.
func (dst *Macaddr) Scan(src interface{}) error {
if src == nil {
*dst = Macaddr{Status: Null}
return nil
}
switch src := src.(type) {
case string:
return dst.DecodeText(nil, []byte(src))
case []byte:
srcCopy := make([]byte, len(src))
copy(srcCopy, src)
return dst.DecodeText(nil, srcCopy)
}
return fmt.Errorf("cannot scan %T", src)
}
// Value implements the database/sql/driver Valuer interface.
func (src Macaddr) Value() (driver.Value, error) {
return EncodeValueText(src)
}
|
