From eaffdae3006ed0386f21dc31c499ffea24c32c98 Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Sat, 3 Apr 2021 03:08:31 +0200
Subject: Allow `,` to delimit macro 2.0 rules

---
 crates/mbe/src/tests/expand.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'crates/mbe/src/tests')

diff --git a/crates/mbe/src/tests/expand.rs b/crates/mbe/src/tests/expand.rs
index 8951f3813..e02d038b6 100644
--- a/crates/mbe/src/tests/expand.rs
+++ b/crates/mbe/src/tests/expand.rs
@@ -662,6 +662,21 @@ macro foo {
     .assert_expand_items("foo!(bar);", "fn bar () {}");
 }
 
+#[test]
+fn test_macro_2_0_panic_2015() {
+    parse_macro2(
+        r#"
+macro panic_2015 {
+    () => (
+    ),
+    (bar) => (
+    ),
+}
+"#,
+    )
+    .assert_expand_items("panic_2015!(bar);", "");
+}
+
 #[test]
 fn test_path() {
     parse_macro(
-- 
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