tcp.rs

trait ToBindSocketAddr {
    fn to_bind_socket_addr(self) -> IoResult<SocketAddr>
}

impl<'a> ToBindSocketAddr for &'a str {
    fn to_bind_socket_addr(self) -> IoResult<SocketAddr> {
        match FromStr::from_str(self) {
            Some(addr) => Ok(addr),
            None => {
                Err(IoError{
                    kind: InvalidInput,
                    desc: "error parsing bind address",
                    detail: None
                })
            }
        }
    }
}

usage.rs

let addr = "127.0.0.1:1234".to_bind_socket_addr()

/*
/home/tom/Source/rust/src/libstd/io/net/tcp.rs:1408:37: 1408:58 error: type `&'static str` does not implement any method in scope named `to_bind_socket_addr`
/home/tom/Source/rust/src/libstd/io/net/tcp.rs:1408         let addr = "127.0.0.1:1234".to_bind_socket_addr().unwrap();
*/