1 files changed, 50 insertions, 0 deletions
diff --git a/src/test/ui/try-trait/try-poll.rs b/src/test/ui/try-trait/try-poll.rs
new file mode 100644
index 000000000..d42e51c74
--- /dev/null
+++ b/src/test/ui/try-trait/try-poll.rs
@@ -0,0 +1,50 @@
+// build-pass (FIXME(62277): could be check-pass?)
+
+#![allow(dead_code, unused)]
+
+use std::task::Poll;
+
+struct K;
+struct E;
+
+fn as_result() -> Result<(), E> {
+    // From Result
+    let K = Ok::<K, E>(K)?;
+
+    // From Poll<Result>
+    let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
+
+    // From Poll<Option<Result>>
+    let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
+
+    Ok(())
+}
+
+fn as_poll_result() -> Poll<Result<(), E>> {
+    // From Result
+    let K = Ok::<K, E>(K)?;
+
+    // From Poll<Result>
+    let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
+
+    // From Poll<Option<Result>>
+    let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
+
+    Poll::Ready(Ok(()))
+}
+
+fn as_poll_option_result() -> Poll<Option<Result<(), E>>> {
+    // From Result
+    let K = Ok::<K, E>(K)?;
+
+    // From Poll<Result>
+    let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
+
+    // From Poll<Option<Result>>
+    let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
+
+    Poll::Ready(Some(Ok(())))
+}
+
+fn main() {
+}