From c9aff92e6dc3ea43228d3d4e24ee7f5485943569 Mon Sep 17 00:00:00 2001
From: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
Date: Sat, 24 Feb 2018 15:27:06 +0300
Subject: Support parentheses in patterns under feature gate

Improve recovery for trailing comma after `..`
---
 src/libsyntax/print/pprust.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/libsyntax/print/pprust.rs')

diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index 9cad9f46e98..77afafbb4e0 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -2659,6 +2659,11 @@ impl<'a> State<'a> {
                                    |s, p| s.print_pat(p))?;
                 self.s.word("]")?;
             }
+            PatKind::Paren(ref inner) => {
+                self.popen()?;
+                self.print_pat(inner)?;
+                self.pclose()?;
+            }
             PatKind::Mac(ref m) => self.print_mac(m, token::Paren)?,
         }
         self.ann.post(self, NodePat(pat))
-- 
cgit 1.4.1-3-g733a5