From 62867b499291a69f5df16a60228c6bcedc5e4225 Mon Sep 17 00:00:00 2001
From: Knium_ <hi.im.knium@gmail.com>
Date: Wed, 30 Jan 2019 13:50:44 +0900
Subject: Suggest to add each of `|` and `()` when unexpected `,` is found in
 pattern

---
 src/libsyntax/parse/parser.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/libsyntax/parse')

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 65572102c59..514b2952c50 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -4381,9 +4381,14 @@ impl<'a> Parser<'a> {
             if let Ok(seq_snippet) = self.sess.source_map().span_to_snippet(seq_span) {
                 err.span_suggestion(
                     seq_span,
-                    "try adding parentheses",
+                    "try adding parentheses to match on a tuple..",
                     format!("({})", seq_snippet),
                     Applicability::MachineApplicable
+                ).span_suggestion(
+                    seq_span,
+                    "..or a vertical bar to match on multiple alternatives",
+                    format!("{}", seq_snippet.replace(",", " |")),
+                    Applicability::MachineApplicable
                 );
             }
             return Err(err);
-- 
cgit 1.4.1-3-g733a5