use bytes::{Buf, Bytes};
use crate::error::Error;
use crate::io::BufExt;
pub trait MySqlBufExt: Buf {
fn get_uint_lenenc(&mut self) -> u64;
#[allow(dead_code)]
fn get_str_lenenc(&mut self) -> Result<String, Error>;
fn get_bytes_lenenc(&mut self) -> Result<Bytes, Error>;
}
impl MySqlBufExt for Bytes {
fn get_uint_lenenc(&mut self) -> u64 {
match self.get_u8() {
0xfc => u64::from(self.get_u16_le()),
0xfd => self.get_uint_le(3),
0xfe => self.get_u64_le(),
v => u64::from(v),
}
}
fn get_str_lenenc(&mut self) -> Result<String, Error> {
let size = self.get_uint_lenenc();
let size = usize::try_from(size)
.map_err(|_| err_protocol!("string length overflows usize: {size}"))?;
self.get_str(size)
}
fn get_bytes_lenenc(&mut self) -> Result<Bytes, Error> {
let size = self.get_uint_lenenc();
let size = usize::try_from(size)
.map_err(|_| err_protocol!("string length overflows usize: {size}"))?;
Ok(self.split_to(size))
}
}