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-rw-r--r--tests/ui/async-await/pin-needed-to-poll-2.rs48
1 files changed, 48 insertions, 0 deletions
diff --git a/tests/ui/async-await/pin-needed-to-poll-2.rs b/tests/ui/async-await/pin-needed-to-poll-2.rs
new file mode 100644
index 000000000..6ce70336d
--- /dev/null
+++ b/tests/ui/async-await/pin-needed-to-poll-2.rs
@@ -0,0 +1,48 @@
+use std::{
+ future::Future,
+ pin::Pin,
+ marker::Unpin,
+ task::{Context, Poll},
+};
+
+struct Sleep(std::marker::PhantomPinned);
+
+impl Future for Sleep {
+ type Output = ();
+
+ fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+ Poll::Ready(())
+ }
+}
+
+impl Drop for Sleep {
+ fn drop(&mut self) {}
+}
+
+fn sleep() -> Sleep {
+ Sleep(std::marker::PhantomPinned)
+}
+
+
+struct MyFuture {
+ sleep: Sleep,
+}
+
+impl MyFuture {
+ fn new() -> Self {
+ Self {
+ sleep: sleep(),
+ }
+ }
+}
+
+impl Future for MyFuture {
+ type Output = ();
+
+ fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+ Pin::new(&mut self.sleep).poll(cx)
+ //~^ ERROR `PhantomPinned` cannot be unpinned
+ }
+}
+
+fn main() {}