func (attr Bytes) Encode(w *pgx.WriteBuf, oid pgx.Oid) error {
if oid != pgx.ByteaOid {
return pgx.SerializationError(fmt.Sprintf("Bytes.Encode cannot encode into OID %d", oid))
}
if attr.Status != Present {
w.WriteInt32(-1)
return nil
}
w.WriteBytes(attr.Value)
return nil
}
func (attr *String) Encode(w *pgx.WriteBuf, oid pgx.Oid) error {
switch attr.Status {
case Present:
return pgx.Encode(w, oid, attr.Value)
case Null:
w.WriteInt32(-1)
return nil
case Undefined:
return errors.New("cannot encode undefined attr")
default:
panic("unreachable")
}
}
func (attr *IPNet) Encode(w *pgx.WriteBuf, oid pgx.Oid) error {
if oid != pgx.InetOid && oid != pgx.CidrOid {
return pgx.SerializationError(fmt.Sprintf("IPNet.Encode cannot encode into OID %d", oid))
}
switch attr.Status {
case Present:
return pgx.Encode(w, oid, attr.Value)
case Null:
w.WriteInt32(-1)
return nil
case Undefined:
return errors.New("cannot encode undefined attr")
default:
panic("unreachable")
}
}
func (b bytea) Encode(w *pgx.WriteBuf, oid pgx.Oid) error {
if len(b) == 0 {
w.WriteInt32(-1)
return nil
}
w.WriteInt32(int32(len(b)))
w.WriteBytes(b)
return nil
}
func (p NullPoint) Encode(w *pgx.WriteBuf, oid pgx.Oid) error {
if !p.Valid {
w.WriteInt32(-1)
return nil
}
s := fmt.Sprintf("point(%v,%v)", p.X, p.Y)
w.WriteInt32(int32(len(s)))
w.WriteBytes([]byte(s))
return nil
}
func (n *coreEncoder) Encode(w *pgx.WriteBuf, oid pgx.Oid) error {
w.WriteInt32(int32(2))
w.WriteBytes([]byte("42"))
return nil
}