mirror of https://github.com/jackc/pgx.git
47 lines
917 B
Go
47 lines
917 B
Go
package pgx
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import (
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"github.com/jackc/pgx/v5/internal/anynil"
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"github.com/jackc/pgx/v5/internal/pgio"
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"github.com/jackc/pgx/v5/pgtype"
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)
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// PostgreSQL format codes
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const (
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TextFormatCode = 0
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BinaryFormatCode = 1
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)
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func convertSimpleArgument(m *pgtype.Map, arg interface{}) (interface{}, error) {
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if anynil.Is(arg) {
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return nil, nil
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}
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buf, err := m.Encode(0, TextFormatCode, arg, nil)
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if err != nil {
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return nil, err
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}
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if buf == nil {
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return nil, nil
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}
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return string(buf), nil
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}
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func encodeCopyValue(m *pgtype.Map, buf []byte, oid uint32, arg interface{}) ([]byte, error) {
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if anynil.Is(arg) {
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return pgio.AppendInt32(buf, -1), nil
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}
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sp := len(buf)
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buf = pgio.AppendInt32(buf, -1)
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argBuf, err := m.Encode(oid, BinaryFormatCode, arg, buf)
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if err != nil {
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return nil, err
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}
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if argBuf != nil {
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buf = argBuf
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pgio.SetInt32(buf[sp:], int32(len(buf[sp:])-4))
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}
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return buf, nil
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}
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