fix example

Author: SpecificProtagonist

examples/ecs/component_hooks.rs

@@ -75,7 +75,9 @@ fn setup(world: &mut World) {
             let value = world.get::<MyComponent>(entity).unwrap().0;
             println!(
                 "{component_id:?} added to {entity:?} with value {value:?}{}",
-                caller.map(|location| format!("due to {location}").unwrap_or_default())
+                caller
+                    .map(|location| format!("due to {location}"))
+                    .unwrap_or_default()
             );
             // Or access resources
             world
@@ -102,7 +104,9 @@ fn setup(world: &mut World) {
             let value = world.get::<MyComponent>(entity).unwrap().0;
             println!(
                 "{component_id:?} removed from {entity:?} with value {value:?}{}",
-                caller.map(|location| format!("due to {location}").unwrap_or_default())
+                caller
+                    .map(|location| format!("due to {location}"))
+                    .unwrap_or_default()
             );
             // You can also issue commands through `.commands()`
             world.commands().entity(entity).despawn();

examples/ecs/immutable_components.rs

@@ -10,6 +10,7 @@ use bevy::{
     utils::HashMap,
 };
 use core::alloc::Layout;
+use core::panic::Location;
 
 /// This component is mutable, the default case. This is indicated by components
 /// implementing [`Component`] where [`Component::Mutability`] is [`Mutable`](bevy::ecs::component::Mutable).
@@ -73,7 +74,12 @@ impl NameIndex {
 ///
 /// Since all mutations to [`Name`] are captured by hooks, we know it is not currently
 /// inserted in the index, and its value will not change without triggering a hook.
-fn on_insert_name(mut world: DeferredWorld<'_>, entity: Entity, _component: ComponentId) {
+fn on_insert_name(
+    mut world: DeferredWorld<'_>,
+    entity: Entity,
+    _component: ComponentId,
+    _caller: Option<&'static Location<'static>>,
+) {
     let Some(&name) = world.entity(entity).get::<Name>() else {
         unreachable!("OnInsert hook guarantees `Name` is available on entity")
     };
@@ -88,7 +94,12 @@ fn on_insert_name(mut world: DeferredWorld<'_>, entity: Entity, _component: Comp
 ///
 /// Since all mutations to [`Name`] are captured by hooks, we know it is currently
 /// inserted in the index.
-fn on_replace_name(mut world: DeferredWorld<'_>, entity: Entity, _component: ComponentId) {
+fn on_replace_name(
+    mut world: DeferredWorld<'_>,
+    entity: Entity,
+    _component: ComponentId,
+    _caller: Option<&'static Location<'static>>,
+) {
     let Some(&name) = world.entity(entity).get::<Name>() else {
         unreachable!("OnReplace hook guarantees `Name` is available on entity")
     };