Macro slimweb::implbufread

macro_rules! implbufread {
    ($name:ident, ($($(#[cfg($cfg:ident = $val:tt)])? $op:ident),*)) => { ... };
    ($name:ident, $life:lifetime, ($($(#[cfg($cfg:ident = $val:tt)])? $op:ident),*)) => { ... };
}

Generic impl BufRead macro.

Example:

implbufread!(Stream, (Http, #[cfg(feature = "tls")] Https));

Becomes:

impl BufRead for Stream {
	fn fill_buf(&mut self) -> IoResult<&[u8]> {
		match self {
			Stream::Http(s) => s.fill_buf(),
			#[cfg(feature = "tls")] Stream::Https(s) => s.fill_buf(),
		}
	}

	fn consume(&mut self, amt: usize) {
		match self {
			Stream::Http(s) => s.consume(amt),
			#[cfg(feature = "tls")] Stream::Https(s) => s.consume(amt),
		}
	}
}