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package pgtype
import (
"database/sql/driver"
"encoding/binary"
"fmt"
"math"
"strconv"
"strings"
"github.com/jackc/pgio"
)
type Box struct {
P [2]Vec2
Status Status
}
func (dst *Box) Set(src interface{}) error {
return fmt.Errorf("cannot convert %v to Box", src)
}
func (dst Box) Get() interface{} {
switch dst.Status {
case Present:
return dst
case Null:
return nil
default:
return dst.Status
}
}
func (src *Box) AssignTo(dst interface{}) error {
return fmt.Errorf("cannot assign %v to %T", src, dst)
}
func (dst *Box) DecodeText(ci *ConnInfo, src []byte) error {
if src == nil {
*dst = Box{Status: Null}
return nil
}
if len(src) < 11 {
return fmt.Errorf("invalid length for Box: %v", len(src))
}
str := string(src[1:])
var end int
end = strings.IndexByte(str, ',')
x1, err := strconv.ParseFloat(str[:end], 64)
if err != nil {
return err
}
str = str[end+1:]
end = strings.IndexByte(str, ')')
y1, err := strconv.ParseFloat(str[:end], 64)
if err != nil {
return err
}
str = str[end+3:]
end = strings.IndexByte(str, ',')
x2, err := strconv.ParseFloat(str[:end], 64)
if err != nil {
return err
}
str = str[end+1 : len(str)-1]
y2, err := strconv.ParseFloat(str, 64)
if err != nil {
return err
}
*dst = Box{P: [2]Vec2{{x1, y1}, {x2, y2}}, Status: Present}
return nil
}
func (dst *Box) DecodeBinary(ci *ConnInfo, src []byte) error {
if src == nil {
*dst = Box{Status: Null}
return nil
}
if len(src) != 32 {
return fmt.Errorf("invalid length for Box: %v", len(src))
}
x1 := binary.BigEndian.Uint64(src)
y1 := binary.BigEndian.Uint64(src[8:])
x2 := binary.BigEndian.Uint64(src[16:])
y2 := binary.BigEndian.Uint64(src[24:])
*dst = Box{
P: [2]Vec2{
{math.Float64frombits(x1), math.Float64frombits(y1)},
{math.Float64frombits(x2), math.Float64frombits(y2)},
},
Status: Present,
}
return nil
}
func (src Box) EncodeText(ci *ConnInfo, buf []byte) ([]byte, error) {
switch src.Status {
case Null:
return nil, nil
case Undefined:
return nil, errUndefined
}
buf = append(buf, fmt.Sprintf(`(%s,%s),(%s,%s)`,
strconv.FormatFloat(src.P[0].X, 'f', -1, 64),
strconv.FormatFloat(src.P[0].Y, 'f', -1, 64),
strconv.FormatFloat(src.P[1].X, 'f', -1, 64),
strconv.FormatFloat(src.P[1].Y, 'f', -1, 64),
)...)
return buf, nil
}
func (src Box) EncodeBinary(ci *ConnInfo, buf []byte) ([]byte, error) {
switch src.Status {
case Null:
return nil, nil
case Undefined:
return nil, errUndefined
}
buf = pgio.AppendUint64(buf, math.Float64bits(src.P[0].X))
buf = pgio.AppendUint64(buf, math.Float64bits(src.P[0].Y))
buf = pgio.AppendUint64(buf, math.Float64bits(src.P[1].X))
buf = pgio.AppendUint64(buf, math.Float64bits(src.P[1].Y))
return buf, nil
}
// Scan implements the database/sql Scanner interface.
func (dst *Box) Scan(src interface{}) error {
if src == nil {
*dst = Box{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 Box) Value() (driver.Value, error) {
return EncodeValueText(src)
}
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