From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/ui/impl-trait/issues/issue-65581.rs | 34 ++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 src/test/ui/impl-trait/issues/issue-65581.rs

(limited to 'src/test/ui/impl-trait/issues/issue-65581.rs')

diff --git a/src/test/ui/impl-trait/issues/issue-65581.rs b/src/test/ui/impl-trait/issues/issue-65581.rs
new file mode 100644
index 000000000..b947fc1d2
--- /dev/null
+++ b/src/test/ui/impl-trait/issues/issue-65581.rs
@@ -0,0 +1,34 @@
+// check-pass
+// ignore-compare-mode-chalk
+
+#![allow(dead_code)]
+
+trait Trait1<T, U> {
+    fn f1(self) -> U;
+}
+
+trait Trait2 {
+    type T;
+    type U: Trait2<T = Self::T>;
+    fn f2(f: impl FnOnce(&Self::U));
+}
+
+fn f3<T: Trait2>() -> impl Trait1<T, T::T> {
+    Struct1
+}
+
+struct Struct1;
+
+impl<T: Trait2> Trait1<T, T::T> for Struct1 {
+    fn f1(self) -> T::T {
+        unimplemented!()
+    }
+}
+
+fn f4<T: Trait2>() {
+    T::f2(|_| {
+        f3::<T::U>().f1();
+    });
+}
+
+fn main() {}
-- 
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