From d4914a7719cf19e3851df65f54d8a495a6f0027d Mon Sep 17 00:00:00 2001
From: Waffle Lapkin <waffle.lapkin@gmail.com>
Date: Thu, 6 Feb 2025 23:12:33 +0100
Subject: [PATCH] replace one `.map_or(true, ...)` with `.is_none_or(...)`
---
.../rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs
index 39e365806cb08..4cb8fcfee0aff 100644
--- a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs
+++ b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs
@@ -142,7 +142,7 @@ where
// Remove any trivial region constraints once we've resolved regions
external_constraints
.region_constraints
- .retain(|outlives| outlives.0.as_region().map_or(true, |re| re != outlives.1));
+ .retain(|outlives| outlives.0.as_region().is_none_or(|re| re != outlives.1));
let canonical = Canonicalizer::canonicalize_response(
self.delegate,