From 8d0d023964002f41be1b1e4fda7549024bf68285 Mon Sep 17 00:00:00 2001
From: Oli Scherer <github35764891676564198441@oli-obk.de>
Date: Thu, 20 Jan 2022 15:41:00 +0100
Subject: [PATCH] Simplify use of `map_or`

---
 compiler/rustc_mir_transform/src/coverage/graph.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/rustc_mir_transform/src/coverage/graph.rs b/compiler/rustc_mir_transform/src/coverage/graph.rs
index a25402a1ff9f5..f7cd95785ea8d 100644
--- a/compiler/rustc_mir_transform/src/coverage/graph.rs
+++ b/compiler/rustc_mir_transform/src/coverage/graph.rs
@@ -418,7 +418,7 @@ impl BasicCoverageBlockData {
     pub fn take_edge_counters(
         &mut self,
     ) -> Option<impl Iterator<Item = (BasicCoverageBlock, CoverageKind)>> {
-        self.edge_from_bcbs.take().map_or(None, |m| Some(m.into_iter()))
+        self.edge_from_bcbs.take().map(|m| m.into_iter())
     }
 
     pub fn id(&self) -> String {