1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/never_type/never-type-arg.rs b/src/test/ui/never_type/never-type-arg.rs
new file mode 100644
index 000000000..13cd59e6a
--- /dev/null
+++ b/src/test/ui/never_type/never-type-arg.rs
@@ -0,0 +1,17 @@
+// Test that we can use ! as an argument to a trait impl.
+
+// check-pass
+
+#![feature(never_type)]
+
+struct Wub;
+
+impl PartialEq<!> for Wub {
+    fn eq(&self, other: &!) -> bool {
+        *other
+    }
+}
+
+fn main() {
+    let _ = Wub == panic!("oh no!");
+}