2 files changed, 3 insertions, 133 deletions

diff --git a/ecs/src/actions.rs b/ecs/src/actions.rs
index 549e341..3d8afe6 100644
--- a/ecs/src/actions.rs
+++ b/ecs/src/actions.rs
@@ -1,7 +1,3 @@
-use std::any::type_name;
-use std::marker::PhantomData;
-use std::rc::{Rc, Weak};
-
 use crate::component::{Parts as ComponentParts, Sequence as ComponentSequence};
 use crate::event::component::Removed;
 use crate::pair::Pair;
@@ -151,28 +147,6 @@ impl Actions<'_>
     {
         self.action_queue.push(Action::Stop);
     }
-
-    /// Returns a struct which holds a weak reference to the [`World`] that `Actions`
-    /// references and that can be used to aquire a new `Actions` instance if the
-    /// referenced [`World`] is still alive.
-    ///
-    /// # Panics
-    /// This function will panic if `self` was retrieved from a [`WeakRef`].
-    #[must_use]
-    pub fn to_weak_ref(&self) -> WeakRef
-    {
-        let world = self.world.unwrap_or_else(|| {
-            panic!(
-                "This function cannot be called if the {} was retrieved from a {}",
-                type_name::<Self>(),
-                type_name::<WeakRef>()
-            )
-        });
-
-        WeakRef {
-            action_queue: Rc::downgrade(&world.data.action_queue),
-        }
-    }
 }
 
 impl<'world> SystemParam<'world> for Actions<'world>
@@ -188,48 +162,6 @@ impl<'world> SystemParam<'world> for Actions<'world>
     }
 }
 
-#[derive(Debug, Clone)]
-pub struct WeakRef
-{
-    action_queue: Weak<ActionQueue>,
-}
-
-impl WeakRef
-{
-    /// Returns a struct which can be used to retrieve a [`Actions`].
-    ///
-    /// Returns [`None`] if the referenced [`World`] has been dropped.
-    #[must_use]
-    pub fn access(&self) -> Option<Ref<'_>>
-    {
-        Some(Ref {
-            action_queue: self.action_queue.upgrade()?,
-            _pd: PhantomData,
-        })
-    }
-}
-
-/// Intermediate between [`Actions`] and [`WeakRef`]. Contains a strong reference to
-/// a world which is not allowed direct access to.
-#[derive(Debug, Clone)]
-pub struct Ref<'weak_ref>
-{
-    action_queue: Rc<ActionQueue>,
-    _pd: PhantomData<&'weak_ref ()>,
-}
-
-impl Ref<'_>
-{
-    #[must_use]
-    pub fn to_actions(&self) -> Actions<'_>
-    {
-        Actions {
-            action_queue: &self.action_queue,
-            world: None,
-        }
-    }
-}
-
 /// A action for a [`System`] to perform.
 #[derive(Debug)]
 pub(crate) enum Action
diff --git a/ecs/src/sole.rs b/ecs/src/sole.rs
index 7cfcc24..82e5e0f 100644
--- a/ecs/src/sole.rs
+++ b/ecs/src/sole.rs
@@ -1,12 +1,12 @@
-use std::any::{type_name, Any};
+use std::any::{Any, type_name};
 use std::fmt::Debug;
 use std::marker::PhantomData;
 use std::ops::{Deref, DerefMut};
-use std::sync::{Arc, Weak};
+use std::sync::Arc;
 
+use crate::World;
 use crate::lock::{Lock, WriteGuard};
 use crate::system::{Metadata as SystemMetadata, Param as SystemParam};
-use crate::World;
 
 /// A type which has a single instance and is shared globally.
 pub trait Sole: Any
@@ -44,7 +44,6 @@ impl Debug for dyn Sole
 pub struct Single<'world, SoleT: Sole>
 {
     sole: WriteGuard<'world, Box<dyn Sole>>,
-    sole_weak: Weak<Lock<Box<dyn Sole>>>,
     _ph: PhantomData<SoleT>,
 }
 
@@ -52,18 +51,6 @@ impl<'world, SoleT> Single<'world, SoleT>
 where
     SoleT: Sole,
 {
-    /// Returns a struct which holds a weak reference to the [`World`] that `Single`
-    /// references and that can be used to aquire a new `Single` if the referenced
-    /// [`World`] is still alive.
-    #[must_use]
-    pub fn to_weak_ref(&self) -> SingleWeakRef<SoleT>
-    {
-        SingleWeakRef {
-            sole: self.sole_weak.clone(),
-            _ph: PhantomData,
-        }
-    }
-
     pub(crate) fn new(sole: &'world Arc<Lock<Box<dyn Sole>>>) -> Self
     {
         Self {
@@ -73,7 +60,6 @@ where
                     type_name::<SoleT>()
                 )
             }),
-            sole_weak: Arc::downgrade(sole),
             _ph: PhantomData,
         }
     }
@@ -116,51 +102,3 @@ where
         self.sole.downcast_mut().unwrap()
     }
 }
-
-#[derive(Debug, Clone)]
-pub struct SingleWeakRef<SoleT>
-where
-    SoleT: Sole,
-{
-    sole: Weak<Lock<Box<dyn Sole>>>,
-    _ph: PhantomData<SoleT>,
-}
-
-impl<SoleT> SingleWeakRef<SoleT>
-where
-    SoleT: Sole,
-{
-    /// Returns a struct which can be used to retrieve a [`Single`].
-    ///
-    /// Returns [`None`] if the referenced [`World`] has been dropped.
-    #[must_use]
-    pub fn access(&self) -> Option<SingleRef<'_, SoleT>>
-    {
-        Some(SingleRef {
-            sole: self.sole.upgrade()?,
-            _pd: PhantomData,
-        })
-    }
-}
-
-/// Intermediate between [`Single`] and [`SingleWeakRef`]. Contains a strong reference to
-/// a world which is not allowed direct access to.
-#[derive(Debug, Clone)]
-pub struct SingleRef<'weak_ref, SoleT>
-where
-    SoleT: Sole,
-{
-    sole: Arc<Lock<Box<dyn Sole>>>,
-    _pd: PhantomData<&'weak_ref SoleT>,
-}
-
-impl<SoleT> SingleRef<'_, SoleT>
-where
-    SoleT: Sole,
-{
-    #[must_use]
-    pub fn to_single(&self) -> Single<'_, SoleT>
-    {
-        Single::new(&self.sole)
-    }
-}