1 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/nll/issue-57280-1-flipped.rs b/tests/ui/nll/issue-57280-1-flipped.rs
new file mode 100644
index 000000000..ad4b8dcfd
--- /dev/null
+++ b/tests/ui/nll/issue-57280-1-flipped.rs
@@ -0,0 +1,23 @@
+// This test should compile, as the lifetimes
+// in matches don't really matter.
+//
+// We currently use contravariance when checking the
+// type of match arms.
+
+trait Foo<'a> {
+    const C: &'a u32;
+}
+
+impl<'a, T> Foo<'a> for T {
+    const C: &'a u32 = &22;
+}
+
+fn foo<'a>(x: &'static u32) {
+    match x {
+        <() as Foo<'a>>::C => { }
+        //~^ ERROR lifetime may not live long enough
+        &_ => { }
+    }
+}
+
+fn main() {}