From d402cd20a8be72ce0eaad08f10d44360aae3506a Mon Sep 17 00:00:00 2001
From: Alan Du <alanhdu@gmail.com>
Date: Thu, 22 Mar 2018 00:57:22 -0400
Subject: [PATCH] Close #2551

---
 src/expr.rs                | 2 +-
 tests/target/issue-2551.rs | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 tests/target/issue-2551.rs

diff --git a/src/expr.rs b/src/expr.rs
index a1fe1153e55b..9aafd71dd220 100644
--- a/src/expr.rs
+++ b/src/expr.rs
@@ -1547,7 +1547,7 @@ pub fn span_ends_with_comma(context: &RewriteContext, span: Span) -> bool {
     for (kind, c) in CharClasses::new(context.snippet(span).chars()) {
         match c {
             _ if kind.is_comment() || c.is_whitespace() => continue,
-            ')' | '}' => result = result && prev_char != c,
+            ')' | '}' => result = result && prev_char != ')' && prev_char != '}',
             ',' => result = true,
             _ => result = false,
         }
diff --git a/tests/target/issue-2551.rs b/tests/target/issue-2551.rs
new file mode 100644
index 000000000000..d7b0d625b9e9
--- /dev/null
+++ b/tests/target/issue-2551.rs
@@ -0,0 +1,3 @@
+mcro!(func(A {
+    a: 12345667800111111111111,
+}));