From d3d31a9f75c99fac12beb1341610d806f56c5d31 Mon Sep 17 00:00:00 2001
From: topecongiro <seuchida@gmail.com>
Date: Fri, 16 Jun 2017 08:47:33 +0900
Subject: [PATCH] Allow overflowing the last item of chain only if it is
 multi-lined

By multi-lined we mean if it has more than 3 lines.
---
 src/chains.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/chains.rs b/src/chains.rs
index 890c39ebabb..7fcd1f3fb3e 100644
--- a/src/chains.rs
+++ b/src/chains.rs
@@ -348,7 +348,7 @@ fn rewrite_last_child_with_overflow(
 ) -> bool {
     if let Some(shape) = shape.shrink_left(almost_total) {
         if let Some(ref mut rw) = rewrite_chain_subexpr(expr, span, context, shape) {
-            if almost_total + first_line_width(rw) <= one_line_budget {
+            if almost_total + first_line_width(rw) <= one_line_budget && rw.lines().count() > 3 {
                 ::std::mem::swap(last_child, rw);
                 return true;
             }