1 files changed, 14 insertions, 0 deletions

diff --git a/tests/ui/const-generics/issues/issue-97278.rs b/tests/ui/const-generics/issues/issue-97278.rs
new file mode 100644
index 000000000..da0a9776f
--- /dev/null
+++ b/tests/ui/const-generics/issues/issue-97278.rs
@@ -0,0 +1,14 @@
+#![feature(adt_const_params)]
+#![allow(incomplete_features)]
+
+use std::sync::Arc;
+
+#[derive(PartialEq, Eq)]
+enum Bar {
+    Bar(Arc<i32>)
+}
+
+fn test<const BAR: Bar>() {}
+//~^ ERROR `Arc<i32>` must be annotated with `#[derive(PartialEq, Eq)]`
+
+fn main() {}