From cf10a0abf23850018b32ed9a15b1bce6a1e71c93 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= <matthias.krueger@famsik.de>
Date: Fri, 11 Dec 2020 19:13:16 +0100
Subject: [PATCH] fix clippy::unnecessary_filter_map

---
 compiler/rustc_builtin_macros/src/deriving/generic/mod.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs
index a767de53dae..68c11868af8 100644
--- a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs
+++ b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs
@@ -597,10 +597,7 @@ fn create_derived_impl(
 
             let mut ty_params = params
                 .iter()
-                .filter_map(|param| match param.kind {
-                    ast::GenericParamKind::Type { .. } => Some(param),
-                    _ => None,
-                })
+                .filter(|param| matches!(param.kind,  ast::GenericParamKind::Type{..}))
                 .peekable();
 
             if ty_params.peek().is_some() {