Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/tests/ui/higher-ranked/trait-bounds/normalize-under-binder/issue-80706.rs b/tests/ui/higher-ranked/trait-bounds/normalize-under-binder/issue-80706.rs
new file mode 100644
index 000000000..00a866f22
--- /dev/null
+++ b/tests/ui/higher-ranked/trait-bounds/normalize-under-binder/issue-80706.rs
@@ -0,0 +1,71 @@
+// build-pass
+// edition:2018
+
+type BoxFuture<T> = std::pin::Pin<Box<dyn std::future::Future<Output=T>>>;
+
+fn main() {
+    f();
+}
+
+async fn f() {
+    run("dependency").await;
+}
+
+struct InMemoryStorage;
+
+struct User<'dep> {
+    dep: &'dep str,
+}
+
+impl<'a> StorageRequest<InMemoryStorage> for SaveUser<'a> {
+    fn execute(&self) -> BoxFuture<Result<(), String>> {
+        todo!()
+    }
+}
+
+trait Storage {
+    type Error;
+}
+
+impl Storage for InMemoryStorage {
+    type Error = String;
+}
+
+trait StorageRequestReturnType {
+    type Output;
+}
+
+trait StorageRequest<S: Storage>: StorageRequestReturnType {
+    fn execute(
+        &self,
+    ) -> BoxFuture<Result<<Self as StorageRequestReturnType>::Output, <S as Storage>::Error>>;
+}
+
+struct SaveUser<'a> {
+    name: &'a str,
+}
+
+impl<'a> StorageRequestReturnType for SaveUser<'a> {
+    type Output = ();
+}
+
+impl<'dep> User<'dep> {
+    async fn save<S>(self)
+    where
+        S: Storage,
+        for<'a> SaveUser<'a>: StorageRequest<S>,
+    {
+        SaveUser { name: "Joe" }
+            .execute()
+            .await;
+    }
+}
+
+async fn run<S>(dep: &str)
+where
+    S: Storage,
+    for<'a> SaveUser<'a>: StorageRequest<S>,
+    for<'a> SaveUser<'a>: StorageRequestReturnType,
+{
+    User { dep }.save().await;
+}