1 files changed, 19 insertions, 0 deletions
diff --git a/tests/ui/lint/dead-code/trait-impl.rs b/tests/ui/lint/dead-code/trait-impl.rs
new file mode 100644
index 000000000..92e389a93
--- /dev/null
+++ b/tests/ui/lint/dead-code/trait-impl.rs
@@ -0,0 +1,19 @@
+// check-pass
+#![deny(dead_code)]
+
+enum Foo {
+    Bar,
+}
+
+fn main() {
+    let p = [0; 0];
+    p.bar();
+}
+
+trait Bar {
+    fn bar(&self) -> usize {
+        3
+    }
+}
+
+impl Bar for [u32; Foo::Bar as usize] {}