use super::{ThuboCodec, WCodec};
use crate::{
buffers::{
reader::{DidntRead, Reader},
writer::{DidntWrite, Writer},
},
codec::{LCodec, RCodec, ThuboCodecHeader},
protocol::{FrameHeader, id},
};
impl LCodec<&FrameHeader> for ThuboCodec {
fn w_len(self, _x: &FrameHeader) -> usize {
1
}
}
impl<W> WCodec<&FrameHeader, &mut W> for ThuboCodec
where
W: Writer,
{
type Output = Result<(), DidntWrite>;
fn write(self, writer: &mut W, x: &FrameHeader) -> Self::Output {
let FrameHeader { header } = x;
self.write(&mut *writer, header)?;
Ok(())
}
}
impl<R> RCodec<FrameHeader, &mut R> for ThuboCodec
where
R: Reader,
{
type Error = DidntRead;
fn read(self, reader: &mut R) -> Result<FrameHeader, Self::Error> {
let header: u8 = self.read(&mut *reader)?;
if header & id::MASK != id::FRAME {
return Err(DidntRead);
}
let codec = ThuboCodecHeader { header };
codec.read(&mut *reader)
}
}
impl<R> RCodec<FrameHeader, &mut R> for ThuboCodecHeader
where
R: Reader,
{
type Error = DidntRead;
fn read(self, _reader: &mut R) -> Result<FrameHeader, Self::Error> {
let x = unsafe { FrameHeader::from_u8(self.header) };
Ok(x)
}
}