crates/proc-macro-api/src/framing.rs

//! Protocol framing

use std::io::{self, BufRead, Write};

pub trait Framing {
    type Buf: Default;

    fn read<'a, R: BufRead>(
        inp: &mut R,
        buf: &'a mut Self::Buf,
    ) -> io::Result<Option<&'a mut Self::Buf>>;

    fn write<W: Write>(out: &mut W, buf: &Self::Buf) -> io::Result<()>;
}