From 2ec7d0b2281e57a456d6122dadd5646804a9d36e Mon Sep 17 00:00:00 2001
From: Esteban Küber <esteban@kuber.com.ar>
Date: Fri, 1 Mar 2019 16:28:04 -0800
Subject: Do not panic on missing close paren

Fix #58856.
---
 src/libsyntax/parse/parser.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/libsyntax/parse')

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index fd5038a8614..dd4c2393fa5 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -6332,8 +6332,10 @@ impl<'a> Parser<'a> {
                     &token::CloseDelim(token::Paren), sep, parse_arg_fn)?;
                 fn_inputs.append(&mut input);
                 (fn_inputs, recovered)
+            } else if let Err(err) = self.expect_one_of(&[], &[]) {
+                return Err(err);
             } else {
-                return self.unexpected();
+                (vec![self_arg], true)
             }
         } else {
             self.parse_seq_to_before_end(&token::CloseDelim(token::Paren), sep, parse_arg_fn)?
-- 
cgit 1.4.1-3-g733a5