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#![allow(clippy::module_name_repetitions)]
use std::marker::PhantomData;
use std::rc::Rc;
use crate::errors::injectable::InjectableError;
use crate::interfaces::injectable::Injectable;
use crate::ptr::{SingletonPtr, TransientPtr};
use crate::DIContainer;
#[derive(strum_macros::Display, Debug)]
pub enum Providable
{
Transient(TransientPtr<dyn Injectable>),
Singleton(SingletonPtr<dyn Injectable>),
#[cfg(feature = "factory")]
Factory(crate::ptr::FactoryPtr<dyn crate::interfaces::any_factory::AnyFactory>),
#[cfg(feature = "factory")]
DefaultFactory(
crate::ptr::FactoryPtr<dyn crate::interfaces::any_factory::AnyFactory>,
),
}
pub trait IProvider
{
fn provide(
&self,
di_container: &Rc<DIContainer>,
dependency_history: Vec<&'static str>,
) -> Result<Providable, InjectableError>;
}
pub struct TransientTypeProvider<InjectableType>
where
InjectableType: Injectable,
{
injectable_phantom: PhantomData<InjectableType>,
}
impl<InjectableType> TransientTypeProvider<InjectableType>
where
InjectableType: Injectable,
{
pub fn new() -> Self
{
Self {
injectable_phantom: PhantomData,
}
}
}
impl<InjectableType> IProvider for TransientTypeProvider<InjectableType>
where
InjectableType: Injectable,
{
fn provide(
&self,
di_container: &Rc<DIContainer>,
dependency_history: Vec<&'static str>,
) -> Result<Providable, InjectableError>
{
Ok(Providable::Transient(InjectableType::resolve(
di_container,
dependency_history,
)?))
}
}
pub struct SingletonProvider<InjectableType>
where
InjectableType: Injectable,
{
singleton: SingletonPtr<InjectableType>,
}
impl<InjectableType> SingletonProvider<InjectableType>
where
InjectableType: Injectable,
{
pub fn new(singleton: SingletonPtr<InjectableType>) -> Self
{
Self { singleton }
}
}
impl<InjectableType> IProvider for SingletonProvider<InjectableType>
where
InjectableType: Injectable,
{
fn provide(
&self,
_di_container: &Rc<DIContainer>,
_dependency_history: Vec<&'static str>,
) -> Result<Providable, InjectableError>
{
Ok(Providable::Singleton(self.singleton.clone()))
}
}
#[cfg(feature = "factory")]
pub struct FactoryProvider
{
factory: crate::ptr::FactoryPtr<dyn crate::interfaces::any_factory::AnyFactory>,
is_default_factory: bool,
}
#[cfg(feature = "factory")]
impl FactoryProvider
{
pub fn new(
factory: crate::ptr::FactoryPtr<dyn crate::interfaces::any_factory::AnyFactory>,
is_default_factory: bool,
) -> Self
{
Self {
factory,
is_default_factory,
}
}
}
#[cfg(feature = "factory")]
impl IProvider for FactoryProvider
{
fn provide(
&self,
_di_container: &Rc<DIContainer>,
_dependency_history: Vec<&'static str>,
) -> Result<Providable, InjectableError>
{
Ok(if self.is_default_factory {
Providable::DefaultFactory(self.factory.clone())
} else {
Providable::Factory(self.factory.clone())
})
}
}
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