From 7b91ef8837cb5e926418aeb4a675313ba928c877 Mon Sep 17 00:00:00 2001
From: Janusz Marcinkiewicz <virrages@gmail.com>
Date: Mon, 23 Dec 2019 15:55:35 +0100
Subject: [PATCH] Simplify match expr

---
 src/librustc_resolve/late/diagnostics.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/librustc_resolve/late/diagnostics.rs b/src/librustc_resolve/late/diagnostics.rs
index 904a4125f2f7..e3895e18d668 100644
--- a/src/librustc_resolve/late/diagnostics.rs
+++ b/src/librustc_resolve/late/diagnostics.rs
@@ -321,8 +321,8 @@ impl<'a> LateResolutionVisitor<'a, '_> {
     fn call_has_self_arg(&self, source: PathSource<'_>) -> Option<(Span, Option<Span>)> {
         let mut has_self_arg = None;
         if let PathSource::Expr(parent) = source {
-            match &parent.map(|p| &p.kind) {
-                Some(ExprKind::Call(_, args)) if args.len() > 0 => {
+            match &parent?.kind {
+                ExprKind::Call(_, args) if args.len() > 0 => {
                     let mut expr_kind = &args[0].kind;
                     loop {
                         match expr_kind {