From e4f13dfdd6d2d644bacc38a3d6eb8c991e47c294 Mon Sep 17 00:00:00 2001
From: topecongiro <seuchida@gmail.com>
Date: Thu, 2 Nov 2017 21:42:11 +0900
Subject: [PATCH] Use is_unsafe_block()

---
 src/expr.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/expr.rs b/src/expr.rs
index 2c562570265..0e84a9eb94a 100644
--- a/src/expr.rs
+++ b/src/expr.rs
@@ -630,8 +630,7 @@ fn rewrite_closure(
         }
 
         // Figure out if the block is necessary.
-        let needs_block = block.rules != ast::BlockCheckMode::Default || block.stmts.len() > 1
-            || context.inside_macro
+        let needs_block = is_unsafe_block(block) || block.stmts.len() > 1 || context.inside_macro
             || block_contains_comment(block, context.codemap)
             || prefix.contains('\n');