forked from jackc/pgx
/
macaddr.go
162 lines (128 loc) · 3.46 KB
/
macaddr.go
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package pgtype
import (
"database/sql/driver"
"net"
)
type MacaddrCodec struct{}
func (MacaddrCodec) FormatSupported(format int16) bool {
return format == TextFormatCode || format == BinaryFormatCode
}
func (MacaddrCodec) PreferredFormat() int16 {
return BinaryFormatCode
}
func (MacaddrCodec) PlanEncode(m *Map, oid uint32, format int16, value any) EncodePlan {
switch format {
case BinaryFormatCode:
switch value.(type) {
case net.HardwareAddr:
return encodePlanMacaddrCodecBinaryHardwareAddr{}
case TextValuer:
return encodePlanMacAddrCodecTextValuer{}
}
case TextFormatCode:
switch value.(type) {
case net.HardwareAddr:
return encodePlanMacaddrCodecTextHardwareAddr{}
case TextValuer:
return encodePlanTextCodecTextValuer{}
}
}
return nil
}
type encodePlanMacaddrCodecBinaryHardwareAddr struct{}
func (encodePlanMacaddrCodecBinaryHardwareAddr) Encode(value any, buf []byte) (newBuf []byte, err error) {
addr := value.(net.HardwareAddr)
if addr == nil {
return nil, nil
}
return append(buf, addr...), nil
}
type encodePlanMacAddrCodecTextValuer struct{}
func (encodePlanMacAddrCodecTextValuer) Encode(value any, buf []byte) (newBuf []byte, err error) {
t, err := value.(TextValuer).TextValue()
if err != nil {
return nil, err
}
if !t.Valid {
return nil, nil
}
addr, err := net.ParseMAC(t.String)
if err != nil {
return nil, err
}
return append(buf, addr...), nil
}
type encodePlanMacaddrCodecTextHardwareAddr struct{}
func (encodePlanMacaddrCodecTextHardwareAddr) Encode(value any, buf []byte) (newBuf []byte, err error) {
addr := value.(net.HardwareAddr)
if addr == nil {
return nil, nil
}
return append(buf, addr.String()...), nil
}
func (MacaddrCodec) PlanScan(m *Map, oid uint32, format int16, target any) ScanPlan {
switch format {
case BinaryFormatCode:
switch target.(type) {
case *net.HardwareAddr:
return scanPlanBinaryMacaddrToHardwareAddr{}
case TextScanner:
return scanPlanBinaryMacaddrToTextScanner{}
}
case TextFormatCode:
switch target.(type) {
case *net.HardwareAddr:
return scanPlanTextMacaddrToHardwareAddr{}
case TextScanner:
return scanPlanTextAnyToTextScanner{}
}
}
return nil
}
type scanPlanBinaryMacaddrToHardwareAddr struct{}
func (scanPlanBinaryMacaddrToHardwareAddr) Scan(src []byte, dst any) error {
dstBuf := dst.(*net.HardwareAddr)
if src == nil {
*dstBuf = nil
return nil
}
*dstBuf = make([]byte, len(src))
copy(*dstBuf, src)
return nil
}
type scanPlanBinaryMacaddrToTextScanner struct{}
func (scanPlanBinaryMacaddrToTextScanner) Scan(src []byte, dst any) error {
scanner := (dst).(TextScanner)
if src == nil {
return scanner.ScanText(Text{})
}
return scanner.ScanText(Text{String: net.HardwareAddr(src).String(), Valid: true})
}
type scanPlanTextMacaddrToHardwareAddr struct{}
func (scanPlanTextMacaddrToHardwareAddr) Scan(src []byte, dst any) error {
p := dst.(*net.HardwareAddr)
if src == nil {
*p = nil
return nil
}
addr, err := net.ParseMAC(string(src))
if err != nil {
return err
}
*p = addr
return nil
}
func (c MacaddrCodec) DecodeDatabaseSQLValue(m *Map, oid uint32, format int16, src []byte) (driver.Value, error) {
return codecDecodeToTextFormat(c, m, oid, format, src)
}
func (c MacaddrCodec) DecodeValue(m *Map, oid uint32, format int16, src []byte) (any, error) {
if src == nil {
return nil, nil
}
var addr net.HardwareAddr
err := codecScan(c, m, oid, format, src, &addr)
if err != nil {
return nil, err
}
return addr, nil
}