From 496e95846745aaa3f90c07cfd24bea1b6b24a0fa Mon Sep 17 00:00:00 2001
From: topecongiro <seuchida@gmail.com>
Date: Wed, 14 Jun 2017 20:36:28 +0900
Subject: [PATCH] Put match arm guard on the next line if it contains new line

---
 src/expr.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/expr.rs b/src/expr.rs
index 1e92b5b9368e..e45aa20a68ab 100644
--- a/src/expr.rs
+++ b/src/expr.rs
@@ -1650,7 +1650,9 @@ fn rewrite_guard(
                 s.rewrite(context, cond_shape)
             })
             {
-                return Some(format!(" if {}", cond_str));
+                if !cond_str.contains('\n') {
+                    return Some(format!(" if {}", cond_str));
+                }
             }
         }