Use NopFetch instead

bevyengine · Feb 4, 2022 · 62d066a · Guvante · Feb 4, 2022 · 62d066a
1 parent 6afff3f
commit 62d066a
Showing 1 changed file with 13 additions and 7 deletions.
diff --git a/crates/bevy_ecs/src/system/query.rs b/crates/bevy_ecs/src/system/query.rs
@@ -2,8 +2,8 @@ use crate::{
  component::Component,
  entity::Entity,
  query::{
- Fetch, FilterFetch, QueryCombinationIter, QueryEntityError, QueryIter, QueryState,
- WorldQuery,
+ Fetch, FilterFetch, NopFetch, QueryCombinationIter, QueryEntityError, QueryIter,
+ QueryState, WorldQuery,
  },
  world::{Mut, World},
 };
@@ -984,11 +984,17 @@ where
  /// # targeting_system.system();
  /// ```
  #[inline]
- pub fn contains(&self, entity: Entity) -> bool
- where
- Q::Fetch: ReadOnlyFetch,
- {
- self.get(entity).is_ok()
+ pub fn contains(&self, entity: Entity) -> bool {
+ unsafe {
+ self.state
+ .get_unchecked_manual::<NopFetch<Q::State>>(
+ self.world,
+ entity,
+ self.last_change_tick,
+ self.change_tick,
+ )
+ .is_ok()
+ }
  }
 }