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//! When configurator for a binding for types inside of a [`IDIContainer`].
//!
//! [`IDIContainer`]: crate::di_container::blocking::IDIContainer
use std::any::type_name;
use std::marker::PhantomData;
use std::rc::Rc;
use crate::di_container::blocking::IDIContainer;
use crate::errors::di_container::BindingWhenConfiguratorError;
/// When configurator for a binding for type 'Interface' inside a [`IDIContainer`].
///
/// [`IDIContainer`]: crate::di_container::blocking::IDIContainer
pub struct BindingWhenConfigurator<Interface, DIContainerType>
where
Interface: 'static + ?Sized,
DIContainerType: IDIContainer,
{
di_container: Rc<DIContainerType>,
interface_phantom: PhantomData<Interface>,
}
impl<Interface, DIContainerType> BindingWhenConfigurator<Interface, DIContainerType>
where
Interface: 'static + ?Sized,
DIContainerType: IDIContainer,
{
pub(crate) fn new(di_container: Rc<DIContainerType>) -> Self
{
Self {
di_container,
interface_phantom: PhantomData,
}
}
/// Configures the binding to have a name.
///
/// # Errors
/// Will return Err if no binding for the interface already exists.
pub fn when_named(
&self,
name: &'static str,
) -> Result<(), BindingWhenConfiguratorError>
{
let binding = self
.di_container
.remove_binding::<Interface>(None)
.map_or_else(
|| {
Err(BindingWhenConfiguratorError::BindingNotFound(type_name::<
Interface,
>(
)))
},
Ok,
)?;
self.di_container
.set_binding::<Interface>(Some(name), binding);
Ok(())
}
}
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