From c4f6f52139f6a708ad183ec2cb619429d2c5eaaa Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <n.nethercote@gmail.com>
Date: Fri, 30 Aug 2024 15:23:49 +1000
Subject: [PATCH] Add `warn(unreachable_pub)` to `rustc_traits`.

---
 compiler/rustc_traits/src/codegen.rs | 2 +-
 compiler/rustc_traits/src/lib.rs     | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_traits/src/codegen.rs b/compiler/rustc_traits/src/codegen.rs
index ada2c8e81de..11182198246 100644
--- a/compiler/rustc_traits/src/codegen.rs
+++ b/compiler/rustc_traits/src/codegen.rs
@@ -21,7 +21,7 @@ use tracing::debug;
 /// obligations *could be* resolved if we wanted to.
 ///
 /// This also expects that `trait_ref` is fully normalized.
-pub fn codegen_select_candidate<'tcx>(
+pub(crate) fn codegen_select_candidate<'tcx>(
     tcx: TyCtxt<'tcx>,
     (param_env, trait_ref): (ty::ParamEnv<'tcx>, ty::TraitRef<'tcx>),
 ) -> Result<&'tcx ImplSource<'tcx, ()>, CodegenObligationError> {
diff --git a/compiler/rustc_traits/src/lib.rs b/compiler/rustc_traits/src/lib.rs
index 697c8391803..d2f979bd6d9 100644
--- a/compiler/rustc_traits/src/lib.rs
+++ b/compiler/rustc_traits/src/lib.rs
@@ -2,6 +2,7 @@
 
 // tidy-alphabetical-start
 #![recursion_limit = "256"]
+#![warn(unreachable_pub)]
 // tidy-alphabetical-end
 
 mod codegen;