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3 changes: 3 additions & 0 deletions library/core/src/async_iter/async_iter.rs
Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,7 @@ where
impl<T> Poll<Option<T>> {
/// A helper function for internal desugaring -- produces `Ready(Some(t))`,
/// which corresponds to the async iterator yielding a value.
#[doc(hidden)]
#[unstable(feature = "async_gen_internals", issue = "none")]
#[lang = "AsyncGenReady"]
pub fn async_gen_ready(t: T) -> Self {
Expand All @@ -124,13 +125,15 @@ impl<T> Poll<Option<T>> {

/// A helper constant for internal desugaring -- produces `Pending`,
/// which corresponds to the async iterator pending on an `.await`.
#[doc(hidden)]
#[unstable(feature = "async_gen_internals", issue = "none")]
#[lang = "AsyncGenPending"]
// FIXME(gen_blocks): This probably could be deduplicated.
pub const PENDING: Self = Poll::Pending;

/// A helper constant for internal desugaring -- produces `Ready(None)`,
/// which corresponds to the async iterator finishing its iteration.
#[doc(hidden)]
#[unstable(feature = "async_gen_internals", issue = "none")]
#[lang = "AsyncGenFinished"]
pub const FINISHED: Self = Poll::Ready(None);
Expand Down