let line = io::read_until(reader, b'\n', Vec::new());
let line = line.and_then(|(reader, vec)| {
if vec.len() == 0 {
Err(Error::new(ErrorKind::BrokenPipe, "broken pipe"))
} else {
Ok((reader, vec))
}
});
// Convert the bytes we read into a string, and then send that
// string to all other connected clients.
let line = line.map(|(reader, vec)| {
(reader, String::from_utf8(vec))
});
...
With monads we end up with much boilerplate that has nothing to do with the actual "business" logic.
Maybe you prefer that, but I prefer the code to describe just the business logic.
Maybe you prefer that, but I prefer the code to describe just the business logic.