1 files changed, 51 insertions, 0 deletions
diff --git a/third_party/rust/futures-util/src/async_await/mod.rs b/third_party/rust/futures-util/src/async_await/mod.rs
new file mode 100644
index 0000000000..69cae13bed
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+++ b/third_party/rust/futures-util/src/async_await/mod.rs
@@ -0,0 +1,51 @@
+//! Await
+//!
+//! This module contains a number of functions and combinators for working
+//! with `async`/`await` code.
+
+use futures_core::future::Future;
+use futures_core::stream::Stream;
+
+#[doc(hidden)]
+pub use futures_core::future::FusedFuture;
+#[doc(hidden)]
+pub use futures_core::stream::FusedStream;
+
+#[macro_use]
+mod poll;
+pub use self::poll::*;
+
+#[macro_use]
+mod pending;
+pub use self::pending::*;
+
+// Primary export is a macro
+#[cfg(feature = "async-await-macro")]
+mod join_mod;
+#[cfg(feature = "async-await-macro")]
+pub use self::join_mod::*;
+
+// Primary export is a macro
+#[cfg(feature = "async-await-macro")]
+mod select_mod;
+#[cfg(feature = "async-await-macro")]
+pub use self::select_mod::*;
+
+#[cfg(feature = "std")]
+#[cfg(feature = "async-await-macro")]
+mod random;
+#[cfg(feature = "std")]
+#[cfg(feature = "async-await-macro")]
+pub use self::random::*;
+
+#[doc(hidden)]
+#[inline(always)]
+pub fn assert_unpin<T: Unpin>(_: &T) {}
+
+#[doc(hidden)]
+#[inline(always)]
+pub fn assert_fused_future<T: Future + FusedFuture>(_: &T) {}
+
+#[doc(hidden)]
+#[inline(always)]
+pub fn assert_fused_stream<T: Stream + FusedStream>(_: &T) {}