Clippy + fmt.

src/change_detection.rs

@@ -1,17 +1,7 @@
-use crate::{TraitImplRegistry, TraitQuery, TraitQueryState};
-use bevy::ecs::archetype::{Archetype, ArchetypeComponentId};
-use bevy::ecs::component::{ComponentId, ComponentTicks};
+use bevy::ecs::component::ComponentTicks;
 use bevy::prelude::DetectChanges;
-use std::cell::UnsafeCell;
-use std::marker::PhantomData;
 use std::ops::{Deref, DerefMut};
 
-use bevy::ecs::entity::Entity;
-use bevy::ecs::query::{Access, FilteredAccess, ReadOnlyWorldQuery, WorldQuery};
-use bevy::ecs::storage::{ComponentSparseSet, SparseSets, Table};
-use bevy::ecs::world::World;
-use bevy::ptr::{ThinSlicePtr, UnsafeCellDeref};
-
 /// Unique mutable borrow of an entity's component
 pub struct Mut<'a, T: ?Sized> {
     pub(crate) value: &'a mut T,
@@ -113,9 +103,3 @@ impl<T: ?Sized> AsMut<T> for Mut<'_, T> {
         self.deref_mut()
     }
 }
-
-pub(crate) enum ChangeDetectionMode {
-    None,
-    Added,
-    Changed
-}

src/multiple_read.rs

@@ -3,7 +3,6 @@ use bevy::ecs::component::ComponentId;
 use bevy::ecs::entity::Entity;
 use bevy::ecs::storage::{SparseSets, Table};
 use bevy::ptr::UnsafeCellDeref;
-use std::ops::Deref;
 
 /// Read-access to all components implementing a trait for a given entity.
 pub struct ReadTraits<'a, Trait: ?Sized + TraitQuery> {

src/one.rs

@@ -16,6 +16,8 @@ pub struct ReadTraitFetch<'w, Trait: ?Sized> {
     // After `Fetch::set_archetype` or `set_table` has been called,
     // this will carry the component data and metadata for the first trait impl found in the archetype.
     storage: ReadStorage<'w, Trait>,
+    last_change_tick: u32,
+    change_tick: u32,
 }
 
 enum ReadStorage<'w, Trait: ?Sized> {