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|
//! Scope configurator for a binding for types inside of a [`IAsyncDIContainer`].
//!
//! [`IAsyncDIContainer`]: crate::di_container::asynchronous::IAsyncDIContainer
use std::marker::PhantomData;
use std::sync::Arc;
use crate::dependency_history::IDependencyHistory;
use crate::di_container::asynchronous::binding::when_configurator::AsyncBindingWhenConfigurator;
use crate::di_container::asynchronous::IAsyncDIContainer;
use crate::errors::async_di_container::AsyncBindingScopeConfiguratorError;
use crate::interfaces::async_injectable::AsyncInjectable;
use crate::provider::r#async::{AsyncSingletonProvider, AsyncTransientTypeProvider};
use crate::ptr::ThreadsafeSingletonPtr;
/// Scope configurator for a binding for type 'Interface' inside a [`IAsyncDIContainer`].
///
/// [`IAsyncDIContainer`]: crate::di_container::asynchronous::IAsyncDIContainer
pub struct AsyncBindingScopeConfigurator<
Interface,
Implementation,
DIContainerType,
DependencyHistoryType,
> where
Interface: 'static + ?Sized + Send + Sync,
Implementation: AsyncInjectable<DIContainerType, DependencyHistoryType>,
DIContainerType: IAsyncDIContainer<DependencyHistoryType>,
DependencyHistoryType: IDependencyHistory + Send + Sync,
{
di_container: Arc<DIContainerType>,
dependency_history_factory: fn() -> DependencyHistoryType,
interface_phantom: PhantomData<Interface>,
implementation_phantom: PhantomData<Implementation>,
}
impl<Interface, Implementation, DIContainerType, DependencyHistoryType>
AsyncBindingScopeConfigurator<
Interface,
Implementation,
DIContainerType,
DependencyHistoryType,
>
where
Interface: 'static + ?Sized + Send + Sync,
Implementation: AsyncInjectable<DIContainerType, DependencyHistoryType>,
DIContainerType: IAsyncDIContainer<DependencyHistoryType>,
DependencyHistoryType: IDependencyHistory + Send + Sync + 'static,
{
pub(crate) fn new(
di_container: Arc<DIContainerType>,
dependency_history_factory: fn() -> DependencyHistoryType,
) -> Self
{
Self {
di_container,
dependency_history_factory,
interface_phantom: PhantomData,
implementation_phantom: PhantomData,
}
}
/// Configures the binding to be in a transient scope.
///
/// This is the default.
pub async fn in_transient_scope(
&self,
) -> AsyncBindingWhenConfigurator<Interface, DIContainerType, DependencyHistoryType>
{
self.di_container
.set_binding::<Interface>(
None,
Box::new(AsyncTransientTypeProvider::<
Implementation,
DIContainerType,
DependencyHistoryType,
>::new()),
)
.await;
AsyncBindingWhenConfigurator::new(self.di_container.clone())
}
/// Configures the binding to be in a singleton scope.
///
/// # Errors
/// Will return Err if resolving the implementation fails.
pub async fn in_singleton_scope(
&self,
) -> Result<
AsyncBindingWhenConfigurator<Interface, DIContainerType, DependencyHistoryType>,
AsyncBindingScopeConfiguratorError,
>
{
let singleton: ThreadsafeSingletonPtr<Implementation> =
ThreadsafeSingletonPtr::from(
Implementation::resolve(
&self.di_container,
(self.dependency_history_factory)(),
)
.await
.map_err(AsyncBindingScopeConfiguratorError::SingletonResolveFailed)?,
);
self.di_container
.set_binding::<Interface>(
None,
Box::new(AsyncSingletonProvider::new(singleton)),
)
.await;
Ok(AsyncBindingWhenConfigurator::new(self.di_container.clone()))
}
}
#[cfg(test)]
mod tests
{
use super::*;
use crate::test_utils::{mocks, subjects_async};
#[tokio::test]
async fn in_transient_scope_works()
{
let mut di_container_mock =
mocks::async_di_container::MockAsyncDIContainer::new();
di_container_mock
.expect_set_binding::<dyn subjects_async::IUserManager>()
.withf(|name, _provider| name.is_none())
.return_once(|_name, _provider| ())
.once();
let binding_scope_configurator = AsyncBindingScopeConfigurator::<
dyn subjects_async::IUserManager,
subjects_async::UserManager,
mocks::async_di_container::MockAsyncDIContainer<mocks::MockDependencyHistory>,
mocks::MockDependencyHistory,
>::new(
Arc::new(di_container_mock),
mocks::MockDependencyHistory::new,
);
binding_scope_configurator.in_transient_scope().await;
}
#[tokio::test]
async fn in_singleton_scope_works()
{
let mut di_container_mock =
mocks::async_di_container::MockAsyncDIContainer::new();
di_container_mock
.expect_set_binding::<dyn subjects_async::IUserManager>()
.withf(|name, _provider| name.is_none())
.return_once(|_name, _provider| ())
.once();
let binding_scope_configurator = AsyncBindingScopeConfigurator::<
dyn subjects_async::IUserManager,
subjects_async::UserManager,
mocks::async_di_container::MockAsyncDIContainer<mocks::MockDependencyHistory>,
mocks::MockDependencyHistory,
>::new(
Arc::new(di_container_mock),
mocks::MockDependencyHistory::new,
);
assert!(matches!(
binding_scope_configurator.in_singleton_scope().await,
Ok(_)
));
}
}
|
