Rollup merge of #78898 - SNCPlay42:issue-78892, r=Mark-Simulacrum

add regression test for #78892 closes #78892, which was already fixed on nightly.
rust-lang · Nov 10, 2020 · 6b27f0d · 6b27f0d
2 parents 354098c + 868aa89
commit 6b27f0d
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/src/test/ui/macros/issue-78892-substitution-in-statement-attr.rs b/src/test/ui/macros/issue-78892-substitution-in-statement-attr.rs
@@ -0,0 +1,14 @@
+// check-pass
+
+// regression test for #78892
+
+macro_rules! mac {
+    ($lint_name:ident) => {{
+        #[allow($lint_name)]
+        let _ = ();
+    }};
+}
+
+fn main() {
+    mac!(dead_code)
+}