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