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use futures::{Async, Poll};
use actor::Actor;
use fut::{ActorFuture, ActorStream};
#[derive(Debug)]
#[must_use = "streams do nothing unless polled"]
pub struct StreamFinish<S> (S);
pub fn new<S>(s: S) -> StreamFinish<S> where S: ActorStream {
StreamFinish(s)
}
impl<S> ActorFuture for StreamFinish<S> where S: ActorStream
{
type Item = ();
type Error = S::Error;
type Actor = S::Actor;
fn poll(&mut self,
act: &mut S::Actor,
ctx: &mut <S::Actor as Actor>::Context) -> Poll<(), S::Error>
{
loop {
match self.0.poll(act, ctx) {
Ok(Async::NotReady) => return Ok(Async::NotReady),
Ok(Async::Ready(None)) => return Ok(Async::Ready(())),
Ok(Async::Ready(Some(_))) => (),
Err(err) => return Err(err),
};
}
}
}