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use core::pin::Pin;
use futures_core::future::{FusedFuture, Future, TryFuture};
use futures_core::task::{Context, Poll};
use pin_project_lite::pin_project;
pin_project! {
#[derive(Debug)]
#[must_use = "futures do nothing unless you `.await` or poll them"]
pub struct IntoFuture<Fut> {
#[pin]
future: Fut,
}
}
impl<Fut> IntoFuture<Fut> {
#[inline]
pub(crate) fn new(future: Fut) -> Self {
Self { future }
}
}
impl<Fut: TryFuture + FusedFuture> FusedFuture for IntoFuture<Fut> {
fn is_terminated(&self) -> bool { self.future.is_terminated() }
}
impl<Fut: TryFuture> Future for IntoFuture<Fut> {
type Output = Result<Fut::Ok, Fut::Error>;
#[inline]
fn poll(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Self::Output> {
self.project().future.try_poll(cx)
}
}