From 762819864fd78f2e8904a6bde6181b80895db360 Mon Sep 17 00:00:00 2001
From: Edwin Cheng <edwin0cheng@gmail.com>
Date: Fri, 19 Apr 2019 19:33:29 +0800
Subject: add block matcher

---
 crates/ra_mbe/src/lib.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'crates/ra_mbe/src/lib.rs')

diff --git a/crates/ra_mbe/src/lib.rs b/crates/ra_mbe/src/lib.rs
index 8e3167e55..d7462d09d 100644
--- a/crates/ra_mbe/src/lib.rs
+++ b/crates/ra_mbe/src/lib.rs
@@ -743,4 +743,23 @@ MACRO_ITEMS@[0; 40)
         );
         assert_expansion(&rules, "foo! { { 1; } }", "fn foo () {1 ;}");
     }
+
+    #[test]
+    fn test_meta() {
+        let rules = create_rules(
+            r#"
+        macro_rules! foo {
+            ($ i:meta) => (
+                #[$ i]
+                fn bar() {}
+            )
+        }
+"#,
+        );
+        assert_expansion(
+            &rules,
+            r#"foo! { cfg(target_os = "windows") }"#,
+            r#"# [cfg (target_os = "windows")] fn bar () {}"#,
+        );
+    }
 }
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