feat(ecs): make relationships creatable without reference to world

1 files changed, 11 insertions, 5 deletions

diff --git a/ecs/src/query.rs b/ecs/src/query.rs
index ea61640..06633bc 100644
--- a/ecs/src/query.rs
+++ b/ecs/src/query.rs
@@ -2,7 +2,6 @@ use std::any::Any;
 use std::collections::HashSet;
 use std::iter::{Filter, Flatten, Map};
 use std::marker::PhantomData;
-use std::sync::Arc;
 
 use crate::component::storage::{
     Archetype,
@@ -13,7 +12,7 @@ use crate::component::storage::{
 };
 use crate::component::{Metadata as ComponentMetadata, Sequence as ComponentSequence};
 use crate::entity::Uid as EntityUid;
-use crate::lock::{Lock, ReadGuard};
+use crate::lock::ReadGuard;
 use crate::query::options::Options;
 use crate::system::{
     NoInitParamFlag as NoInitSystemParamFlag,
@@ -29,6 +28,7 @@ pub struct Query<'world, Comps, OptionsT = ()>
 where
     Comps: ComponentSequence,
 {
+    world: &'world World,
     component_storage: ReadGuard<'world, ComponentStorage>,
     _pd: PhantomData<(Comps, OptionsT)>,
 }
@@ -49,6 +49,7 @@ where
 
         #[allow(clippy::map_flatten)]
         ComponentIter {
+            world: self.world,
             entities: self
                 .component_storage
                 .find_entities(Comps::metadata())
@@ -72,10 +73,13 @@ where
         )
     }
 
-    pub(crate) fn new(component_storage: &'world Arc<Lock<ComponentStorage>>) -> Self
+    pub(crate) fn new(world: &'world World) -> Self
     {
         Self {
-            component_storage: component_storage
+            world,
+            component_storage: world
+                .data
+                .component_storage
                 .read_nonblock()
                 .expect("Failed to acquire read-only component storage lock"),
             _pd: PhantomData,
@@ -118,7 +122,7 @@ where
         world: &'world World,
     ) -> Self
     {
-        Self::new(&world.data.component_storage)
+        Self::new(&world)
     }
 
     fn is_compatible<Other: SystemParam<'world>>() -> bool
@@ -146,6 +150,7 @@ type ComponentIterFilterFn = for<'a, 'b> fn(&'a &'b ArchetypeEntity) -> bool;
 
 pub struct ComponentIter<'world, Comps>
 {
+    world: &'world World,
     entities: Filter<
         Flatten<Map<ArchetypeRefIter<'world>, ComponentIterMapFn>>,
         ComponentIterFilterFn,
@@ -163,6 +168,7 @@ where
     {
         Some(Comps::from_components(
             self.entities.next()?.components().iter(),
+            self.world,
         ))
     }
 }