From 987560a16a22a43843bc27ee82fda03257d7faf4 Mon Sep 17 00:00:00 2001
From: Corey Farwell <coreyf@rwell.org>
Date: Mon, 12 Oct 2015 15:40:47 -0400
Subject: [PATCH] Add regression test for #22814

Closes #22814
---
 src/test/run-pass/issue-22814.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 src/test/run-pass/issue-22814.rs

diff --git a/src/test/run-pass/issue-22814.rs b/src/test/run-pass/issue-22814.rs
new file mode 100644
index 0000000000000..6afcd77074644
--- /dev/null
+++ b/src/test/run-pass/issue-22814.rs
@@ -0,0 +1,22 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+trait Test {}
+
+macro_rules! test {
+( $($name:ident)+) => (
+    impl<$($name: Test),*> Test for ($($name,)*) {
+    }
+)
+}
+
+test!(A B C);
+
+fn main() {}