sqlx_core/mysql/protocol/text/
row.rs

1use bytes::{Buf, Bytes};
2
3use crate::error::Error;
4use crate::io::Decode;
5use crate::mysql::io::MySqlBufExt;
6use crate::mysql::protocol::Row;
7use crate::mysql::MySqlColumn;
8
9#[derive(Debug)]
10pub(crate) struct TextRow(pub(crate) Row);
11
12impl<'de> Decode<'de, &'de [MySqlColumn]> for TextRow {
13    fn decode_with(mut buf: Bytes, columns: &'de [MySqlColumn]) -> Result<Self, Error> {
14        let storage = buf.clone();
15        let offset = buf.len();
16
17        let mut values = Vec::with_capacity(columns.len());
18
19        for _ in columns {
20            if buf[0] == 0xfb {
21                // NULL is sent as 0xfb
22                values.push(None);
23                buf.advance(1);
24            } else {
25                let size = buf.get_uint_lenenc() as usize;
26                let offset = offset - buf.len();
27
28                values.push(Some(offset..(offset + size)));
29
30                buf.advance(size);
31            }
32        }
33
34        Ok(TextRow(Row { values, storage }))
35    }
36}
sqlx_core/mysql/protocol/text/row.rs

sqlx_core/mysql/protocol/text/
row.rs
