From cdbfe9fce300b9a28e7f2106bcb85df38d72ae66 Mon Sep 17 00:00:00 2001
From: Jeffrey Seyfried <jeffrey.seyfried@gmail.com>
Date: Sun, 7 Aug 2016 06:28:05 +0000
Subject: [PATCH] Add test for metavariable hygiene.

---
 src/test/compile-fail/macro-tt-matchers.rs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/test/compile-fail/macro-tt-matchers.rs b/src/test/compile-fail/macro-tt-matchers.rs
index f41da77ee9896..945490cefb95a 100644
--- a/src/test/compile-fail/macro-tt-matchers.rs
+++ b/src/test/compile-fail/macro-tt-matchers.rs
@@ -16,5 +16,16 @@ macro_rules! foo {
 
 foo!(Box);
 
+macro_rules! bar {
+    ($x:tt) => {
+        macro_rules! baz {
+            ($x:tt, $y:tt) => { ($x, $y) }
+        }
+    }
+}
+
 #[rustc_error]
-fn main() {} //~ ERROR compilation successful
+fn main() { //~ ERROR compilation successful
+    bar!($y);
+    let _: (i8, i16) = baz!(0i8, 0i16);
+}