From b5cadd734eed6f4ba317550f8d6e3ab019fe1bcb Mon Sep 17 00:00:00 2001
From: Manish Goregaokar <manishsmail@gmail.com>
Date: Wed, 25 Sep 2019 13:34:55 -0700
Subject: [PATCH] ignore single-match for or patterns

---
 clippy_lints/src/matches.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/clippy_lints/src/matches.rs b/clippy_lints/src/matches.rs
index 3d765af21..ac4f012f3 100644
--- a/clippy_lints/src/matches.rs
+++ b/clippy_lints/src/matches.rs
@@ -255,6 +255,11 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Matches {
 #[rustfmt::skip]
 fn check_single_match(cx: &LateContext<'_, '_>, ex: &Expr, arms: &[Arm], expr: &Expr) {
     if arms.len() == 2 && arms[0].guard.is_none() && arms[1].guard.is_none() {
+        if let PatKind::Or(..) = arms[0].pat.node {
+            // don't lint for or patterns for now, this makes
+            // the lint noisy in unnecessary situations
+            return;
+        }
         let els = remove_blocks(&arms[1].body);
         let els = if is_unit_expr(els) {
             None