refactor!: make the async DI container not inside a Arc

BREAKING CHANGE: The async DI container is no longer inside of a Arc. This affects AsyncBindingBuilder, AsyncBindingScopeConfigurator, AsyncBindingWhenConfigurator & AsyncInjectable

11 files changed, 119 insertions, 147 deletions

diff --git a/examples/async/bootstrap.rs b/examples/async/bootstrap.rs
index 9b495c2..d26876a 100644
--- a/examples/async/bootstrap.rs
+++ b/examples/async/bootstrap.rs
@@ -1,6 +1,3 @@
-use std::sync::Arc;
-
-use anyhow::Result;
 use syrette::ptr::TransientPtr;
 use syrette::{declare_default_factory, AsyncDIContainer};
 
@@ -15,7 +12,7 @@ use crate::interfaces::human::IHuman;
 
 declare_default_factory!(dyn ICat, threadsafe = true);
 
-pub async fn bootstrap() -> Result<Arc<AsyncDIContainer>>
+pub async fn bootstrap() -> Result<AsyncDIContainer, anyhow::Error>
 {
     let mut di_container = AsyncDIContainer::new();
 
diff --git a/macros/src/injectable/implementation.rs b/macros/src/injectable/implementation.rs
index 3e22f91..b3e57c2 100644
--- a/macros/src/injectable/implementation.rs
+++ b/macros/src/injectable/implementation.rs
@@ -232,9 +232,8 @@ impl<Dep: IDependency> InjectableImpl<Dep>
             > for #self_type
             {
                 fn resolve<'di_container, 'fut>(
-                    #di_container_var: &'di_container std::sync::Arc<
-                        syrette::di_container::asynchronous::AsyncDIContainer
-                    >,
+                    #di_container_var: &'di_container
+                        syrette::di_container::asynchronous::AsyncDIContainer,
                     mut #dependency_history_var: syrette::dependency_history::DependencyHistory
                 ) -> syrette::future::BoxFuture<
                     'fut,
diff --git a/src/di_container/asynchronous/binding/builder.rs b/src/di_container/asynchronous/binding/builder.rs
index c253929..acb1c69 100644
--- a/src/di_container/asynchronous/binding/builder.rs
+++ b/src/di_container/asynchronous/binding/builder.rs
@@ -1,7 +1,6 @@
 //! Binding builder for types inside of a [`AsyncDIContainer`].
 use std::any::type_name;
 use std::marker::PhantomData;
-use std::sync::Arc;
 
 use crate::di_container::asynchronous::binding::scope_configurator::AsyncBindingScopeConfigurator;
 #[cfg(feature = "factory")]
@@ -21,22 +20,22 @@ pub type BoxFn<Args, Return> = Box<(dyn Fn<Args, Output = Return> + Send + Sync)
 
 /// Binding builder for type `Interface` inside a [`AsyncDIContainer`].
 #[must_use = "No binding will be created if you don't use the binding builder"]
-pub struct AsyncBindingBuilder<Interface>
+pub struct AsyncBindingBuilder<'di_container, Interface>
 where
     Interface: 'static + ?Sized + Send + Sync,
 {
-    di_container: Arc<AsyncDIContainer>,
+    di_container: &'di_container AsyncDIContainer,
     dependency_history_factory: fn() -> DependencyHistory,
 
     interface_phantom: PhantomData<Interface>,
 }
 
-impl<Interface> AsyncBindingBuilder<Interface>
+impl<'di_container, Interface> AsyncBindingBuilder<'di_container, Interface>
 where
     Interface: 'static + ?Sized + Send + Sync,
 {
     pub(crate) fn new(
-        di_container: Arc<AsyncDIContainer>,
+        di_container: &'di_container AsyncDIContainer,
         dependency_history_factory: fn() -> DependencyHistory,
     ) -> Self
     {
@@ -91,7 +90,7 @@ where
     pub async fn to<Implementation>(
         self,
     ) -> Result<
-        AsyncBindingScopeConfigurator<Interface, Implementation>,
+        AsyncBindingScopeConfigurator<'di_container, Interface, Implementation>,
         AsyncBindingBuilderError,
     >
     where
@@ -109,7 +108,7 @@ where
         }
 
         let binding_scope_configurator = AsyncBindingScopeConfigurator::new(
-            self.di_container.clone(),
+            self.di_container,
             self.dependency_history_factory,
         );
 
@@ -170,13 +169,15 @@ where
     pub async fn to_factory<Args, Return, FactoryFunc>(
         self,
         factory_func: &'static FactoryFunc,
-    ) -> Result<AsyncBindingWhenConfigurator<Interface>, AsyncBindingBuilderError>
+    ) -> Result<
+        AsyncBindingWhenConfigurator<'di_container, Interface>,
+        AsyncBindingBuilderError,
+    >
     where
         Args: std::marker::Tuple + 'static,
         Return: 'static + ?Sized,
         Interface: Fn<Args, Output = Return> + Send + Sync,
-        FactoryFunc:
-            Fn<(Arc<AsyncDIContainer>,), Output = BoxFn<Args, Return>> + Send + Sync,
+        FactoryFunc: Fn(&AsyncDIContainer) -> BoxFn<Args, Return> + Send + Sync,
     {
         use crate::private::castable_factory::threadsafe::ThreadsafeCastableFactory;
         use crate::provider::r#async::AsyncFactoryVariant;
@@ -204,7 +205,7 @@ where
             )
             .await;
 
-        Ok(AsyncBindingWhenConfigurator::new(self.di_container.clone()))
+        Ok(AsyncBindingWhenConfigurator::new(self.di_container))
     }
 
     /// Creates a binding of factory type `Interface` to a async factory inside of the
@@ -268,16 +269,19 @@ where
     pub async fn to_async_factory<Args, Return, FactoryFunc>(
         self,
         factory_func: &'static FactoryFunc,
-    ) -> Result<AsyncBindingWhenConfigurator<Interface>, AsyncBindingBuilderError>
+    ) -> Result<
+        AsyncBindingWhenConfigurator<'di_container, Interface>,
+        AsyncBindingBuilderError,
+    >
     where
         Args: std::marker::Tuple + 'static,
         Return: 'static + ?Sized,
         Interface:
             Fn<Args, Output = crate::future::BoxFuture<'static, Return>> + Send + Sync,
-        FactoryFunc: Fn<
-                (Arc<AsyncDIContainer>,),
-                Output = BoxFn<Args, crate::future::BoxFuture<'static, Return>>,
-            > + Send
+        FactoryFunc: Fn(
+                &AsyncDIContainer,
+            ) -> BoxFn<Args, crate::future::BoxFuture<'static, Return>>
+            + Send
             + Sync,
     {
         use crate::private::castable_factory::threadsafe::ThreadsafeCastableFactory;
@@ -306,7 +310,7 @@ where
             )
             .await;
 
-        Ok(AsyncBindingWhenConfigurator::new(self.di_container.clone()))
+        Ok(AsyncBindingWhenConfigurator::new(self.di_container))
     }
 
     /// Creates a binding of type `Interface` to a factory that takes no arguments
@@ -360,13 +364,14 @@ where
     pub async fn to_default_factory<Return, FactoryFunc>(
         self,
         factory_func: &'static FactoryFunc,
-    ) -> Result<AsyncBindingWhenConfigurator<Interface>, AsyncBindingBuilderError>
+    ) -> Result<
+        AsyncBindingWhenConfigurator<'di_container, Interface>,
+        AsyncBindingBuilderError,
+    >
     where
         Return: 'static + ?Sized,
-        FactoryFunc: Fn<
-                (Arc<AsyncDIContainer>,),
-                Output = BoxFn<(), crate::ptr::TransientPtr<Return>>,
-            > + Send
+        FactoryFunc: Fn(&AsyncDIContainer) -> BoxFn<(), crate::ptr::TransientPtr<Return>>
+            + Send
             + Sync,
     {
         use crate::private::castable_factory::threadsafe::ThreadsafeCastableFactory;
@@ -395,7 +400,7 @@ where
             )
             .await;
 
-        Ok(AsyncBindingWhenConfigurator::new(self.di_container.clone()))
+        Ok(AsyncBindingWhenConfigurator::new(self.di_container))
     }
 
     /// Creates a binding of factory type `Interface` to a async factory inside of the
@@ -454,13 +459,14 @@ where
     pub async fn to_async_default_factory<Return, FactoryFunc>(
         self,
         factory_func: &'static FactoryFunc,
-    ) -> Result<AsyncBindingWhenConfigurator<Interface>, AsyncBindingBuilderError>
+    ) -> Result<
+        AsyncBindingWhenConfigurator<'di_container, Interface>,
+        AsyncBindingBuilderError,
+    >
     where
         Return: 'static + ?Sized,
-        FactoryFunc: Fn<
-                (Arc<AsyncDIContainer>,),
-                Output = BoxFn<(), crate::future::BoxFuture<'static, Return>>,
-            > + Send
+        FactoryFunc: Fn(&AsyncDIContainer) -> BoxFn<(), crate::future::BoxFuture<'static, Return>>
+            + Send
             + Sync,
     {
         use crate::private::castable_factory::threadsafe::ThreadsafeCastableFactory;
@@ -489,7 +495,7 @@ where
             )
             .await;
 
-        Ok(AsyncBindingWhenConfigurator::new(self.di_container.clone()))
+        Ok(AsyncBindingWhenConfigurator::new(self.di_container))
     }
 }
 
@@ -524,7 +530,7 @@ mod tests
 
         let binding_builder =
             AsyncBindingBuilder::<dyn subjects_async::IUserManager>::new(
-                Arc::new(di_container_mock),
+                &di_container_mock,
                 MockDependencyHistory::new,
             );
 
@@ -565,7 +571,7 @@ mod tests
             .once();
 
         let binding_builder = AsyncBindingBuilder::<IUserManagerFactory>::new(
-            Arc::new(di_container_mock),
+            &di_container_mock,
             MockDependencyHistory::new,
         );
 
@@ -614,7 +620,7 @@ mod tests
             .once();
 
         let binding_builder = AsyncBindingBuilder::<IUserManagerFactory>::new(
-            Arc::new(di_container_mock),
+            &di_container_mock,
             MockDependencyHistory::new,
         );
 
@@ -659,7 +665,7 @@ mod tests
 
         let binding_builder =
             AsyncBindingBuilder::<dyn subjects_async::IUserManager>::new(
-                Arc::new(di_container_mock),
+                &di_container_mock,
                 MockDependencyHistory::new,
             );
 
@@ -705,7 +711,7 @@ mod tests
 
         let binding_builder =
             AsyncBindingBuilder::<dyn subjects_async::IUserManager>::new(
-                Arc::new(di_container_mock),
+                &di_container_mock,
                 MockDependencyHistory::new,
             );
 
diff --git a/src/di_container/asynchronous/binding/scope_configurator.rs b/src/di_container/asynchronous/binding/scope_configurator.rs
index 3557202..f079234 100644
--- a/src/di_container/asynchronous/binding/scope_configurator.rs
+++ b/src/di_container/asynchronous/binding/scope_configurator.rs
@@ -1,6 +1,5 @@
 //! Scope configurator for a binding for types inside of a [`AsyncDIContainer`].
 use std::marker::PhantomData;
-use std::sync::Arc;
 
 use crate::di_container::asynchronous::binding::when_configurator::AsyncBindingWhenConfigurator;
 use crate::di_container::BindingOptions;
@@ -14,25 +13,26 @@ use_double!(crate::dependency_history::DependencyHistory);
 use_double!(crate::di_container::asynchronous::AsyncDIContainer);
 
 /// Scope configurator for a binding for type `Interface` inside a [`AsyncDIContainer`].
-pub struct AsyncBindingScopeConfigurator<Interface, Implementation>
+pub struct AsyncBindingScopeConfigurator<'di_container, Interface, Implementation>
 where
     Interface: 'static + ?Sized + Send + Sync,
     Implementation: AsyncInjectable<AsyncDIContainer>,
 {
-    di_container: Arc<AsyncDIContainer>,
+    di_container: &'di_container AsyncDIContainer,
     dependency_history_factory: fn() -> DependencyHistory,
 
     interface_phantom: PhantomData<Interface>,
     implementation_phantom: PhantomData<Implementation>,
 }
 
-impl<Interface, Implementation> AsyncBindingScopeConfigurator<Interface, Implementation>
+impl<'di_container, Interface, Implementation>
+    AsyncBindingScopeConfigurator<'di_container, Interface, Implementation>
 where
     Interface: 'static + ?Sized + Send + Sync,
     Implementation: AsyncInjectable<AsyncDIContainer>,
 {
     pub(crate) fn new(
-        di_container: Arc<AsyncDIContainer>,
+        di_container: &'di_container AsyncDIContainer,
         dependency_history_factory: fn() -> DependencyHistory,
     ) -> Self
     {
@@ -47,11 +47,13 @@ where
     /// Configures the binding to be in a transient scope.
     ///
     /// This is the default.
-    pub async fn in_transient_scope(self) -> AsyncBindingWhenConfigurator<Interface>
+    pub async fn in_transient_scope(
+        self,
+    ) -> AsyncBindingWhenConfigurator<'di_container, Interface>
     {
         self.set_in_transient_scope().await;
 
-        AsyncBindingWhenConfigurator::new(self.di_container.clone())
+        AsyncBindingWhenConfigurator::new(self.di_container)
     }
 
     /// Configures the binding to be in a singleton scope.
@@ -60,12 +62,15 @@ where
     /// Will return Err if resolving the implementation fails.
     pub async fn in_singleton_scope(
         self,
-    ) -> Result<AsyncBindingWhenConfigurator<Interface>, AsyncBindingScopeConfiguratorError>
+    ) -> Result<
+        AsyncBindingWhenConfigurator<'di_container, Interface>,
+        AsyncBindingScopeConfiguratorError,
+    >
     {
         let singleton: ThreadsafeSingletonPtr<Implementation> =
             ThreadsafeSingletonPtr::from(
                 Implementation::resolve(
-                    &self.di_container,
+                    self.di_container,
                     (self.dependency_history_factory)(),
                 )
                 .await
@@ -79,7 +84,7 @@ where
             )
             .await;
 
-        Ok(AsyncBindingWhenConfigurator::new(self.di_container.clone()))
+        Ok(AsyncBindingWhenConfigurator::new(self.di_container))
     }
 
     pub(crate) async fn set_in_transient_scope(&self)
@@ -118,7 +123,7 @@ mod tests
             AsyncBindingScopeConfigurator::<
                 dyn subjects_async::IUserManager,
                 subjects_async::UserManager,
-            >::new(Arc::new(di_container_mock), MockDependencyHistory::new);
+            >::new(&di_container_mock, MockDependencyHistory::new);
 
         binding_scope_configurator.in_transient_scope().await;
     }
@@ -138,7 +143,7 @@ mod tests
             AsyncBindingScopeConfigurator::<
                 dyn subjects_async::IUserManager,
                 subjects_async::UserManager,
-            >::new(Arc::new(di_container_mock), MockDependencyHistory::new);
+            >::new(&di_container_mock, MockDependencyHistory::new);
 
         assert!(binding_scope_configurator
             .in_singleton_scope()
diff --git a/src/di_container/asynchronous/binding/when_configurator.rs b/src/di_container/asynchronous/binding/when_configurator.rs
index 3c1de7c..b7c2767 100644
--- a/src/di_container/asynchronous/binding/when_configurator.rs
+++ b/src/di_container/asynchronous/binding/when_configurator.rs
@@ -1,7 +1,6 @@
 //! When configurator for a binding for types inside of a [`AsyncDIContainer`].
 use std::any::type_name;
 use std::marker::PhantomData;
-use std::sync::Arc;
 
 use crate::di_container::BindingOptions;
 use crate::errors::async_di_container::AsyncBindingWhenConfiguratorError;
@@ -10,20 +9,20 @@ use crate::util::use_double;
 use_double!(crate::di_container::asynchronous::AsyncDIContainer);
 
 /// When configurator for a binding for type `Interface` inside a [`AsyncDIContainer`].
-pub struct AsyncBindingWhenConfigurator<Interface>
+pub struct AsyncBindingWhenConfigurator<'di_container, Interface>
 where
     Interface: 'static + ?Sized + Send + Sync,
 {
-    di_container: Arc<AsyncDIContainer>,
+    di_container: &'di_container AsyncDIContainer,
 
     interface_phantom: PhantomData<Interface>,
 }
 
-impl<Interface> AsyncBindingWhenConfigurator<Interface>
+impl<'di_container, Interface> AsyncBindingWhenConfigurator<'di_container, Interface>
 where
     Interface: 'static + ?Sized + Send + Sync,
 {
-    pub(crate) fn new(di_container: Arc<AsyncDIContainer>) -> Self
+    pub(crate) fn new(di_container: &'di_container AsyncDIContainer) -> Self
     {
         Self {
             di_container,
@@ -90,7 +89,7 @@ mod tests
 
         let binding_when_configurator = AsyncBindingWhenConfigurator::<
             dyn subjects_async::INumber,
-        >::new(Arc::new(di_container_mock));
+        >::new(&di_container_mock);
 
         assert!(binding_when_configurator
             .when_named("awesome")
diff --git a/src/di_container/asynchronous/mod.rs b/src/di_container/asynchronous/mod.rs
index 827364d..4be232d 100644
--- a/src/di_container/asynchronous/mod.rs
+++ b/src/di_container/asynchronous/mod.rs
@@ -71,6 +71,7 @@ use_double!(crate::dependency_history::DependencyHistory);
 pub mod binding;
 
 /// Async dependency injection container.
+#[derive(Default)]
 pub struct AsyncDIContainer
 {
     binding_storage: Mutex<DIContainerBindingStorage<dyn IAsyncProvider<Self>>>,
@@ -80,11 +81,11 @@ impl AsyncDIContainer
 {
     /// Returns a new `AsyncDIContainer`.
     #[must_use]
-    pub fn new() -> Arc<Self>
+    pub fn new() -> Self
     {
-        Arc::new(Self {
+        Self {
             binding_storage: Mutex::new(DIContainerBindingStorage::new()),
-        })
+        }
     }
 }
 
@@ -93,7 +94,7 @@ impl AsyncDIContainer
 {
     /// Returns a new [`AsyncBindingBuilder`] for the given interface.
     #[allow(clippy::missing_panics_doc)]
-    pub fn bind<Interface>(self: &mut Arc<Self>) -> AsyncBindingBuilder<Interface>
+    pub fn bind<Interface>(&mut self) -> AsyncBindingBuilder<'_, Interface>
     where
         Interface: 'static + ?Sized + Send + Sync,
     {
@@ -101,7 +102,7 @@ impl AsyncDIContainer
         panic!("Bind function is unusable when testing");
 
         #[cfg(not(test))]
-        AsyncBindingBuilder::new(self.clone(), DependencyHistory::new)
+        AsyncBindingBuilder::new(self, DependencyHistory::new)
     }
 
     /// Returns the type bound with `Interface`.
@@ -112,7 +113,7 @@ impl AsyncDIContainer
     /// - Resolving the binding for `Interface` fails
     /// - Casting the binding for `Interface` fails
     pub async fn get<Interface>(
-        self: &Arc<Self>,
+        &self,
     ) -> Result<SomePtr<Interface>, AsyncDIContainerError>
     where
         Interface: 'static + ?Sized + Send + Sync,
@@ -129,7 +130,7 @@ impl AsyncDIContainer
     /// - Resolving the binding for `Interface` fails
     /// - Casting the binding for `Interface` fails
     pub async fn get_named<Interface>(
-        self: &Arc<Self>,
+        &self,
         name: &'static str,
     ) -> Result<SomePtr<Interface>, AsyncDIContainerError>
     where
@@ -177,7 +178,7 @@ impl AsyncDIContainer
     /// # });
     /// ```
     pub async fn get_bound<Interface>(
-        self: &Arc<Self>,
+        &self,
         dependency_history: DependencyHistory,
         binding_options: BindingOptions<'static>,
     ) -> Result<SomePtr<Interface>, AsyncDIContainerError>
@@ -192,7 +193,7 @@ impl AsyncDIContainer
     }
 
     async fn has_binding<Interface>(
-        self: &Arc<Self>,
+        &self,
         binding_options: BindingOptions<'static>,
     ) -> bool
     where
@@ -205,7 +206,7 @@ impl AsyncDIContainer
     }
 
     async fn set_binding<Interface>(
-        self: &Arc<Self>,
+        &self,
         binding_options: BindingOptions<'static>,
         provider: Box<dyn IAsyncProvider<Self>>,
     ) where
@@ -218,7 +219,7 @@ impl AsyncDIContainer
     }
 
     async fn remove_binding<Interface>(
-        self: &Arc<Self>,
+        &self,
         binding_options: BindingOptions<'static>,
     ) -> Option<Box<dyn IAsyncProvider<Self>>>
     where
@@ -234,7 +235,7 @@ impl AsyncDIContainer
 impl AsyncDIContainer
 {
     async fn handle_binding_providable<Interface>(
-        self: &Arc<Self>,
+        &self,
         binding_providable: AsyncProvidable<Self>,
     ) -> Result<SomePtr<Interface>, AsyncDIContainerError>
     where
@@ -299,9 +300,7 @@ impl AsyncDIContainer
                         }
                     })?;
 
-                Ok(SomePtr::ThreadsafeFactory(
-                    factory.call(self.clone()).into(),
-                ))
+                Ok(SomePtr::ThreadsafeFactory(factory.call(self).into()))
             }
             #[cfg(feature = "factory")]
             AsyncProvidable::DefaultFactory(binding) => {
@@ -317,7 +316,7 @@ impl AsyncDIContainer
                     DefaultFactoryFn<Interface>,
                 >(binding, "default factory")?;
 
-                Ok(SomePtr::Transient(default_factory.call(self.clone())()))
+                Ok(SomePtr::Transient(default_factory.call(self)()))
             }
             #[cfg(feature = "factory")]
             AsyncProvidable::AsyncDefaultFactory(binding) => {
@@ -338,9 +337,7 @@ impl AsyncDIContainer
                     binding, "async default factory"
                 )?;
 
-                Ok(SomePtr::Transient(
-                    async_default_factory.call(self.clone())().await,
-                ))
+                Ok(SomePtr::Transient(async_default_factory.call(self)().await))
             }
         }
     }
@@ -368,7 +365,7 @@ impl AsyncDIContainer
     }
 
     async fn get_binding_providable<Interface>(
-        self: &Arc<Self>,
+        &self,
         binding_options: BindingOptions<'static>,
         dependency_history: DependencyHistory,
     ) -> Result<AsyncProvidable<Self>, AsyncDIContainerError>
@@ -644,21 +641,13 @@ mod tests
         let mut mock_provider = MockAsyncProvider::new();
 
         mock_provider.expect_do_clone().returning(|| {
-            type FactoryFunc = Box<
-                (dyn Fn<(Vec<i128>,), Output = TransientPtr<dyn IUserManager>> + Send + Sync)
-            >;
-
             let mut inner_mock_provider = MockAsyncProvider::new();
 
-            let factory_func: &'static (dyn Fn<
-                (Arc<AsyncDIContainer>,),
-                Output = FactoryFunc> + Send + Sync) = &|_| {
+            let factory_func = &|_: &AsyncDIContainer| {
                 Box::new(|users| {
-                    let user_manager: TransientPtr<dyn IUserManager> =
-                        TransientPtr::new(UserManager::new(users));
-
-                    user_manager
-                })
+                    TransientPtr::new(UserManager::new(users))
+                        as TransientPtr<dyn IUserManager>
+                }) as Box<IUserManagerFactory>
             };
 
             inner_mock_provider.expect_provide().returning(|_, _| {
@@ -672,16 +661,11 @@ mod tests
             Box::new(inner_mock_provider)
         });
 
-        {
-            di_container
-                .binding_storage
-                .lock()
-                .await
-                .set::<IUserManagerFactory>(
-                    BindingOptions::new(),
-                    Box::new(mock_provider),
-                );
-        }
+        di_container
+            .binding_storage
+            .lock()
+            .await
+            .set::<IUserManagerFactory>(BindingOptions::new(), Box::new(mock_provider));
 
         di_container
             .get::<IUserManagerFactory>()
@@ -743,21 +727,13 @@ mod tests
         let mut mock_provider = MockAsyncProvider::new();
 
         mock_provider.expect_do_clone().returning(|| {
-            type FactoryFunc = Box<
-                (dyn Fn<(Vec<i128>,), Output = TransientPtr<dyn IUserManager>> + Send + Sync)
-            >;
-
             let mut inner_mock_provider = MockAsyncProvider::new();
 
-            let factory_func: &'static (dyn Fn<
-                (Arc<AsyncDIContainer>,),
-                Output = FactoryFunc> + Send + Sync) = &|_| {
+            let factory_func = &|_: &AsyncDIContainer| {
                 Box::new(|users| {
-                    let user_manager: TransientPtr<dyn IUserManager> =
-                        TransientPtr::new(UserManager::new(users));
-
-                    user_manager
-                })
+                    TransientPtr::new(UserManager::new(users))
+                        as TransientPtr<dyn IUserManager>
+                }) as Box<IUserManagerFactory>
             };
 
             inner_mock_provider.expect_provide().returning(|_, _| {
diff --git a/src/interfaces/async_injectable.rs b/src/interfaces/async_injectable.rs
index c455970..4c18487 100644
--- a/src/interfaces/async_injectable.rs
+++ b/src/interfaces/async_injectable.rs
@@ -1,6 +1,5 @@
 //! Interface for structs that can be injected into or be injected to.
 use std::fmt::Debug;
-use std::sync::Arc;
 
 use crate::errors::injectable::InjectableError;
 use crate::future::BoxFuture;
@@ -11,14 +10,14 @@ use crate::util::use_double;
 use_double!(crate::dependency_history::DependencyHistory);
 
 /// Interface for structs that can be injected into or be injected to.
-pub trait AsyncInjectable<DIContainerType>: CastFromArc
+pub trait AsyncInjectable<DIContainerT>: CastFromArc
 {
     /// Resolves the dependencies of the injectable.
     ///
     /// # Errors
     /// Will return `Err` if resolving the dependencies fails.
     fn resolve<'di_container, 'fut>(
-        di_container: &'di_container Arc<DIContainerType>,
+        di_container: &'di_container DIContainerT,
         dependency_history: DependencyHistory,
     ) -> BoxFuture<'fut, Result<TransientPtr<Self>, InjectableError>>
     where
@@ -26,7 +25,7 @@ pub trait AsyncInjectable<DIContainerType>: CastFromArc
         'di_container: 'fut;
 }
 
-impl<DIContainerType> Debug for dyn AsyncInjectable<DIContainerType>
+impl<DIContainerT> Debug for dyn AsyncInjectable<DIContainerT>
 {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
     {
diff --git a/src/private/castable_factory/threadsafe.rs b/src/private/castable_factory/threadsafe.rs
index 6e608b1..6e8da42 100644
--- a/src/private/castable_factory/threadsafe.rs
+++ b/src/private/castable_factory/threadsafe.rs
@@ -1,6 +1,5 @@
 use std::any::type_name;
 use std::fmt::Debug;
-use std::sync::Arc;
 
 use crate::private::any_factory::{AnyFactory, AnyThreadsafeFactory};
 use crate::private::factory::IThreadsafeFactory;
@@ -11,9 +10,7 @@ where
     DIContainerT: 'static,
     ReturnInterface: 'static + ?Sized,
 {
-    func: &'static (dyn Fn(Arc<DIContainerT>) -> TransientPtr<ReturnInterface>
-                  + Send
-                  + Sync),
+    func: &'static (dyn Fn(&DIContainerT) -> TransientPtr<ReturnInterface> + Send + Sync),
 }
 
 impl<ReturnInterface, DIContainerT>
@@ -23,7 +20,7 @@ where
     ReturnInterface: 'static + ?Sized,
 {
     pub fn new(
-        func: &'static (dyn Fn<(Arc<DIContainerT>,), Output = TransientPtr<ReturnInterface>>
+        func: &'static (dyn Fn(&DIContainerT) -> TransientPtr<ReturnInterface>
                       + Send
                       + Sync),
     ) -> Self
@@ -38,7 +35,7 @@ where
     DIContainerT: 'static,
     ReturnInterface: 'static + ?Sized,
 {
-    fn call(&self, di_container: Arc<DIContainerT>) -> TransientPtr<ReturnInterface>
+    fn call(&self, di_container: &DIContainerT) -> TransientPtr<ReturnInterface>
     {
         (self.func)(di_container)
     }
@@ -72,7 +69,7 @@ where
         let ret = type_name::<TransientPtr<ReturnInterface>>();
 
         formatter.write_fmt(format_args!(
-            "ThreadsafeCastableFactory (Arc<AsyncDIContainer>) -> {ret} {{ ... }}",
+            "ThreadsafeCastableFactory (&AsyncDIContainer) -> {ret} {{ ... }}",
         ))
     }
 }
@@ -92,13 +89,14 @@ mod tests
     #[test]
     fn can_call()
     {
-        let castable_factory = ThreadsafeCastableFactory::new(&|_| {
-            TransientPtr::new(Bacon { heal_amount: 27 })
-        });
+        let castable_factory =
+            ThreadsafeCastableFactory::new(&|_: &MockAsyncDIContainer| {
+                TransientPtr::new(Bacon { heal_amount: 27 })
+            });
 
-        let mock_di_container = Arc::new(MockAsyncDIContainer::new());
+        let mock_di_container = MockAsyncDIContainer::new();
 
-        let output = castable_factory.call(mock_di_container);
+        let output = castable_factory.call(&mock_di_container);
 
         assert_eq!(output, TransientPtr::new(Bacon { heal_amount: 27 }));
     }
diff --git a/src/private/factory.rs b/src/private/factory.rs
index c1672e1..7191c2c 100644
--- a/src/private/factory.rs
+++ b/src/private/factory.rs
@@ -1,6 +1,3 @@
-#[cfg(feature = "async")]
-use std::sync::Arc;
-
 use crate::private::cast::CastFrom;
 use crate::ptr::TransientPtr;
 
@@ -19,5 +16,5 @@ pub trait IThreadsafeFactory<ReturnInterface, DIContainerT>:
 where
     ReturnInterface: 'static + ?Sized,
 {
-    fn call(&self, di_container: Arc<DIContainerT>) -> TransientPtr<ReturnInterface>;
+    fn call(&self, di_container: &DIContainerT) -> TransientPtr<ReturnInterface>;
 }
diff --git a/src/provider/async.rs b/src/provider/async.rs
index ae633fd..2bf7be1 100644
--- a/src/provider/async.rs
+++ b/src/provider/async.rs
@@ -1,5 +1,4 @@
 use std::marker::PhantomData;
-use std::sync::Arc;
 
 use async_trait::async_trait;
 
@@ -43,7 +42,7 @@ where
 {
     async fn provide(
         &self,
-        di_container: &Arc<DIContainerT>,
+        di_container: &DIContainerT,
         dependency_history: DependencyHistory,
     ) -> Result<AsyncProvidable<DIContainerT>, InjectableError>;
 
@@ -90,7 +89,7 @@ where
 {
     async fn provide(
         &self,
-        di_container: &Arc<DIContainerT>,
+        di_container: &DIContainerT,
         dependency_history: DependencyHistory,
     ) -> Result<AsyncProvidable<DIContainerT>, InjectableError>
     {
@@ -150,7 +149,7 @@ where
 {
     async fn provide(
         &self,
-        _di_container: &Arc<DIContainerT>,
+        _di_container: &DIContainerT,
         _dependency_history: DependencyHistory,
     ) -> Result<AsyncProvidable<DIContainerT>, InjectableError>
     {
@@ -217,7 +216,7 @@ where
 {
     async fn provide(
         &self,
-        _di_container: &Arc<DIContainerT>,
+        _di_container: &DIContainerT,
         _dependency_history: DependencyHistory,
     ) -> Result<AsyncProvidable<DIContainerT>, InjectableError>
     {
@@ -273,7 +272,7 @@ mod tests
         assert!(
             matches!(
                 transient_type_provider
-                    .provide(&Arc::new(di_container), MockDependencyHistory::new())
+                    .provide(&di_container, MockDependencyHistory::new())
                     .await?,
                 AsyncProvidable::Transient(_)
             ),
@@ -298,7 +297,7 @@ mod tests
         assert!(
             matches!(
                 singleton_provider
-                    .provide(&Arc::new(di_container), MockDependencyHistory::new())
+                    .provide(&di_container, MockDependencyHistory::new())
                     .await?,
                 AsyncProvidable::Singleton(_)
             ),
@@ -335,7 +334,7 @@ mod tests
             AsyncFactoryVariant::AsyncDefault,
         );
 
-        let di_container = Arc::new(MockAsyncDIContainer::new());
+        let di_container = MockAsyncDIContainer::new();
 
         assert!(
             matches!(
diff --git a/src/test_utils.rs b/src/test_utils.rs
index 6071cfb..491e9b4 100644
--- a/src/test_utils.rs
+++ b/src/test_utils.rs
@@ -138,7 +138,6 @@ pub mod subjects_async
     //! Test subjects.
 
     use std::fmt::Debug;
-    use std::sync::Arc;
 
     use async_trait::async_trait;
     use syrette_macros::declare_interface;
@@ -187,7 +186,7 @@ pub mod subjects_async
     impl<DIContainerType> AsyncInjectable<DIContainerType> for UserManager
     {
         async fn resolve(
-            _: &Arc<DIContainerType>,
+            _: &DIContainerType,
             _dependency_history: DependencyHistory,
         ) -> Result<TransientPtr<Self>, crate::errors::injectable::InjectableError>
         where
@@ -252,7 +251,7 @@ pub mod subjects_async
     impl<DIContainerType> AsyncInjectable<DIContainerType> for Number
     {
         async fn resolve(
-            _: &Arc<DIContainerType>,
+            _: &DIContainerType,
             _dependency_history: DependencyHistory,
         ) -> Result<TransientPtr<Self>, crate::errors::injectable::InjectableError>
         where
@@ -271,8 +270,6 @@ pub mod mocks
     #[cfg(feature = "async")]
     pub mod async_provider
     {
-        use std::sync::Arc;
-
         use async_trait::async_trait;
         use mockall::mock;
 
@@ -293,7 +290,7 @@ pub mod mocks
             {
                 async fn provide(
                     &self,
-                    di_container: &Arc<DIContainerT>,
+                    di_container: &DIContainerT,
                     dependency_history: DependencyHistory
                 ) -> Result<AsyncProvidable<DIContainerT>, InjectableError>;