1 files changed, 12 insertions, 0 deletions
diff --git a/tokio-futures/src/macros.rs b/tokio-futures/src/macros.rs
new file mode 100644
index 00000000..30505ef1
--- /dev/null
+++ b/tokio-futures/src/macros.rs
@@ -0,0 +1,12 @@
+/// Unwrap a ready value or propagate `Async::Pending`.
+#[macro_export]
+macro_rules! ready {
+    ($e:expr) => {{
+        use std::task::Poll::{Pending, Ready};
+
+        match $e {
+            Ready(v) => v,
+            Pending => return Pending,
+        }
+    }};
+}