mirror of https://github.com/jackc/pgx.git
76 lines
1.1 KiB
Go
76 lines
1.1 KiB
Go
package pgtype
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import (
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"fmt"
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"io"
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"strconv"
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"github.com/jackc/pgx/pgio"
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)
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type Int4 int32
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func (i *Int4) DecodeText(r io.Reader) error {
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size, err := pgio.ReadInt32(r)
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if err != nil {
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return err
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}
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if size == -1 {
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return fmt.Errorf("invalid length for int4: %v", size)
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}
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buf := make([]byte, int(size))
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_, err = r.Read(buf)
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if err != nil {
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return err
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}
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n, err := strconv.ParseInt(string(buf), 10, 32)
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if err != nil {
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return err
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}
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*i = Int4(n)
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return nil
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}
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func (i *Int4) DecodeBinary(r io.Reader) error {
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size, err := pgio.ReadInt32(r)
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if err != nil {
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return err
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}
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if size != 4 {
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return fmt.Errorf("invalid length for int4: %v", size)
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}
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n, err := pgio.ReadInt32(r)
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if err != nil {
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return err
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}
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*i = Int4(n)
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return nil
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}
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func (i Int4) EncodeText(w io.Writer) error {
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s := strconv.FormatInt(int64(i), 10)
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_, err := pgio.WriteInt32(w, int32(len(s)))
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if err != nil {
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return nil
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}
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_, err = w.Write([]byte(s))
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return err
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}
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func (i Int4) EncodeBinary(w io.Writer) error {
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_, err := pgio.WriteInt32(w, 4)
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if err != nil {
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return err
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}
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_, err = pgio.WriteInt32(w, int32(i))
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return err
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}
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