From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs

(limited to 'tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs')

diff --git a/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs b/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs
new file mode 100644
index 000000000..511e41562
--- /dev/null
+++ b/tests/ui/traits/trait-upcasting/cyclic-trait-resolution.rs
@@ -0,0 +1,13 @@
+trait A: B + A {}
+//~^ ERROR cycle detected when computing the super predicates of `A` [E0391]
+
+trait B {}
+
+impl A for () {}
+
+impl B for () {}
+
+fn main() {
+    let a: Box<dyn A> = Box::new(());
+    let _b: Box<dyn B> = a;
+}
-- 
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