1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
//! Scope configurator for a binding for types inside of a [`IDIContainer`].
//!
//! [`IDIContainer`]: crate::di_container::blocking::IDIContainer
use std::marker::PhantomData;
use std::rc::Rc;
use crate::di_container::blocking::binding::when_configurator::BindingWhenConfigurator;
use crate::di_container::blocking::IDIContainer;
use crate::errors::di_container::BindingScopeConfiguratorError;
use crate::interfaces::injectable::Injectable;
use crate::provider::blocking::{SingletonProvider, TransientTypeProvider};
use crate::ptr::SingletonPtr;
/// Scope configurator for a binding for type 'Interface' inside a [`IDIContainer`].
///
/// [`IDIContainer`]: crate::di_container::blocking::IDIContainer
pub struct BindingScopeConfigurator<Interface, Implementation, DIContainerType>
where
Interface: 'static + ?Sized,
Implementation: Injectable<DIContainerType>,
DIContainerType: IDIContainer,
{
di_container: Rc<DIContainerType>,
interface_phantom: PhantomData<Interface>,
implementation_phantom: PhantomData<Implementation>,
}
impl<Interface, Implementation, DIContainerType>
BindingScopeConfigurator<Interface, Implementation, DIContainerType>
where
Interface: 'static + ?Sized,
Implementation: Injectable<DIContainerType>,
DIContainerType: IDIContainer,
{
pub(crate) fn new(di_container: Rc<DIContainerType>) -> Self
{
Self {
di_container,
interface_phantom: PhantomData,
implementation_phantom: PhantomData,
}
}
/// Configures the binding to be in a transient scope.
///
/// This is the default.
#[allow(clippy::must_use_candidate)]
pub fn in_transient_scope(
&self,
) -> BindingWhenConfigurator<Interface, DIContainerType>
{
self.di_container.set_binding::<Interface>(
None,
Box::new(TransientTypeProvider::<Implementation, DIContainerType>::new()),
);
BindingWhenConfigurator::new(self.di_container.clone())
}
/// Configures the binding to be in a singleton scope.
///
/// # Errors
/// Will return Err if resolving the implementation fails.
pub fn in_singleton_scope(
&self,
) -> Result<
BindingWhenConfigurator<Interface, DIContainerType>,
BindingScopeConfiguratorError,
>
{
let singleton: SingletonPtr<Implementation> = SingletonPtr::from(
Implementation::resolve(&self.di_container, Vec::new())
.map_err(BindingScopeConfiguratorError::SingletonResolveFailed)?,
);
self.di_container
.set_binding::<Interface>(None, Box::new(SingletonProvider::new(singleton)));
Ok(BindingWhenConfigurator::new(self.di_container.clone()))
}
}
#[cfg(test)]
mod tests
{
use super::*;
use crate::test_utils::{mocks, subjects};
#[test]
fn in_transient_scope_works()
{
let mut di_container_mock = mocks::blocking_di_container::MockDIContainer::new();
di_container_mock
.expect_set_binding::<dyn subjects::IUserManager>()
.withf(|name, _provider| name.is_none())
.return_once(|_name, _provider| ())
.once();
let binding_scope_configurator = BindingScopeConfigurator::<
dyn subjects::IUserManager,
subjects::UserManager,
mocks::blocking_di_container::MockDIContainer,
>::new(Rc::new(di_container_mock));
binding_scope_configurator.in_transient_scope();
}
#[test]
fn in_singleton_scope_works()
{
let mut di_container_mock = mocks::blocking_di_container::MockDIContainer::new();
di_container_mock
.expect_set_binding::<dyn subjects::IUserManager>()
.withf(|name, _provider| name.is_none())
.return_once(|_name, _provider| ())
.once();
let binding_scope_configurator = BindingScopeConfigurator::<
dyn subjects::IUserManager,
subjects::UserManager,
mocks::blocking_di_container::MockDIContainer,
>::new(Rc::new(di_container_mock));
assert!(matches!(
binding_scope_configurator.in_singleton_scope(),
Ok(_)
));
}
}
|
