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package pgproto3
import (
"bytes"
"encoding/json"
"github.com/jackc/pgx/pgio"
)
type Close struct {
ObjectType byte // 'S' = prepared statement, 'P' = portal
Name string
}
func (*Close) Frontend() {}
func (dst *Close) Decode(src []byte) error {
if len(src) < 2 {
return &invalidMessageFormatErr{messageType: "Close"}
}
dst.ObjectType = src[0]
rp := 1
idx := bytes.IndexByte(src[rp:], 0)
if idx != len(src[rp:])-1 {
return &invalidMessageFormatErr{messageType: "Close"}
}
dst.Name = string(src[rp : len(src)-1])
return nil
}
func (src *Close) Encode(dst []byte) []byte {
dst = append(dst, 'C')
sp := len(dst)
dst = pgio.AppendInt32(dst, -1)
dst = append(dst, src.ObjectType)
dst = append(dst, src.Name...)
dst = append(dst, 0)
pgio.SetInt32(dst[sp:], int32(len(dst[sp:])))
return dst
}
func (src *Close) MarshalJSON() ([]byte, error) {
return json.Marshal(struct {
Type string
ObjectType string
Name string
}{
Type: "Close",
ObjectType: string(src.ObjectType),
Name: src.Name,
})
}
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