From fbe436b1d4369603a6f89cbb8fb382ef5fe210f7 Mon Sep 17 00:00:00 2001
From: Yusuke Tanaka <yusuktan@maguro.dev>
Date: Sat, 6 Feb 2021 18:06:58 +0900
Subject: [PATCH] Use flatten instead of filter_map

---
 clippy_lints/src/loops.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clippy_lints/src/loops.rs b/clippy_lints/src/loops.rs
index 663c2df23e22..ac4005d0cfde 100644
--- a/clippy_lints/src/loops.rs
+++ b/clippy_lints/src/loops.rs
@@ -739,7 +739,7 @@ fn combine_branches(b1: NeverLoopResult, b2: NeverLoopResult) -> NeverLoopResult
 fn never_loop_block(block: &Block<'_>, main_loop_id: HirId) -> NeverLoopResult {
     let stmts = block.stmts.iter().map(stmt_to_expr);
     let expr = once(block.expr.as_deref());
-    let mut iter = stmts.chain(expr).filter_map(|e| e);
+    let mut iter = stmts.chain(expr).flatten();
     never_loop_expr_seq(&mut iter, main_loop_id)
 }