Move allow unsafe_op_in_unsafe_fn to module level in bevy_ecs

crates/bevy_ecs/src/bundle/mod.rs

@@ -1,3 +1,8 @@
+#![expect(
+    unsafe_op_in_unsafe_fn,
+    reason = "See #11590. To be removed once all applicable unsafe code has an unsafe block with a safety comment."
+)]
+
 //! Types for handling [`Bundle`]s.
 //!
 //! This module contains the [`Bundle`] trait and some other helper types.

crates/bevy_ecs/src/entity/clone_entities.rs

@@ -1,3 +1,8 @@
+#![expect(
+    unsafe_op_in_unsafe_fn,
+    reason = "See #11590. To be removed once all applicable unsafe code has an unsafe block with a safety comment."
+)]
+
 use crate::{
     archetype::Archetype,
     bundle::{Bundle, BundleRemover, InsertMode},

crates/bevy_ecs/src/lib.rs

@@ -1,7 +1,3 @@
-#![expect(
-    unsafe_op_in_unsafe_fn,
-    reason = "See #11590. To be removed once all applicable unsafe code has an unsafe block with a safety comment."
-)]
 #![doc = include_str!("../README.md")]
 #![cfg_attr(
     any(docsrs, docsrs_dep),

crates/bevy_ecs/src/query/mod.rs

@@ -1,3 +1,8 @@
+#![expect(
+    unsafe_op_in_unsafe_fn,
+    reason = "See #11590. To be removed once all applicable unsafe code has an unsafe block with a safety comment."
+)]
+
 //! Contains APIs for retrieving component data from the world.
 
 mod access;

crates/bevy_ecs/src/schedule/executor/multi_threaded.rs

@@ -448,12 +448,17 @@ impl ExecutorState {
         }
 
         #[cfg(feature = "hotpatching")]
-        let hotpatch_tick = context
-            .environment
-            .world_cell
-            .get_resource_ref::<HotPatchChanges>()
-            .map(|r| r.last_changed())
-            .unwrap_or_default();
+        // SAFETY: This operation is not safe. It could create UB if a user creates a mutable reference
+        // to `HotPatchChanges` in a system. But this can only happen when the `hotpatching` feature is
+        // enabled.
+        let hotpatch_tick = unsafe {
+            context
+                .environment
+                .world_cell
+                .get_resource_ref::<HotPatchChanges>()
+        }
+        .map(|r| r.last_changed())
+        .unwrap_or_default();
 
         // can't borrow since loop mutably borrows `self`
         let mut ready_systems = core::mem::take(&mut self.ready_systems_copy);

crates/bevy_ecs/src/storage/mod.rs

@@ -1,3 +1,8 @@
+#![expect(
+    unsafe_op_in_unsafe_fn,
+    reason = "See #11590. To be removed once all applicable unsafe code has an unsafe block with a safety comment."
+)]
+
 //! Storage layouts for ECS data.
 //!
 //! This module implements the low-level collections that store data in a [`World`]. These all offer minimal and often

crates/bevy_ecs/src/system/combinator.rs

@@ -1,3 +1,8 @@
+#![expect(
+    unsafe_op_in_unsafe_fn,
+    reason = "See #11590. To be removed once all applicable unsafe code has an unsafe block with a safety comment."
+)]
+
 use alloc::{format, vec::Vec};
 use bevy_utils::prelude::DebugName;
 use core::marker::PhantomData;

crates/bevy_ecs/src/system/system_param.rs

@@ -1,3 +1,8 @@
+#![expect(
+    unsafe_op_in_unsafe_fn,
+    reason = "See #11590. To be removed once all applicable unsafe code has an unsafe block with a safety comment."
+)]
+
 pub use crate::change_detection::{NonSend, NonSendMut, Res, ResMut};
 use crate::{
     archetype::Archetypes,

crates/bevy_ecs/src/world/mod.rs

@@ -1,3 +1,8 @@
+#![expect(
+    unsafe_op_in_unsafe_fn,
+    reason = "See #11590. To be removed once all applicable unsafe code has an unsafe block with a safety comment."
+)]
+
 //! Defines the [`World`] and APIs for accessing it directly.
 
 pub(crate) mod command_queue;