syrette/private/castable_factory/
mod.rs

1use std::any::type_name;
2use std::fmt::Debug;
3
4use crate::private::any_factory::AnyFactory;
5use crate::private::factory::IFactory;
6use crate::ptr::TransientPtr;
7
8#[cfg(feature = "async")]
9pub mod threadsafe;
10
11pub struct CastableFactory<ReturnInterface, DIContainerT>
12where
13    ReturnInterface: 'static + ?Sized,
14    DIContainerT: 'static,
15{
16    func: &'static dyn Fn(&DIContainerT) -> TransientPtr<ReturnInterface>,
17}
18
19impl<ReturnInterface, DIContainerT> CastableFactory<ReturnInterface, DIContainerT>
20where
21    ReturnInterface: 'static + ?Sized,
22{
23    pub fn new(
24        func: &'static dyn Fn(&DIContainerT) -> TransientPtr<ReturnInterface>,
25    ) -> Self
26    {
27        Self { func }
28    }
29}
30
31impl<ReturnInterface, DIContainerT> IFactory<ReturnInterface, DIContainerT>
32    for CastableFactory<ReturnInterface, DIContainerT>
33where
34    ReturnInterface: 'static + ?Sized,
35{
36    fn call(&self, di_container: &DIContainerT) -> TransientPtr<ReturnInterface>
37    {
38        (self.func)(di_container)
39    }
40}
41
42impl<ReturnInterface, DIContainerT> AnyFactory
43    for CastableFactory<ReturnInterface, DIContainerT>
44where
45    ReturnInterface: 'static + ?Sized,
46    DIContainerT: 'static,
47{
48}
49
50impl<ReturnInterface, DIContainerT> Debug
51    for CastableFactory<ReturnInterface, DIContainerT>
52where
53    ReturnInterface: 'static + ?Sized,
54{
55    #[cfg(not(tarpaulin_include))]
56    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
57    {
58        let ret = type_name::<TransientPtr<ReturnInterface>>();
59
60        formatter.write_fmt(format_args!(
61            "CastableFactory (&DIContainer) -> {ret} {{ ... }}"
62        ))
63    }
64}
65
66#[cfg(test)]
67mod tests
68{
69    use super::*;
70    use crate::di_container::blocking::MockDIContainer;
71
72    #[derive(Debug, PartialEq, Eq)]
73    struct Bacon
74    {
75        heal_amount: u32,
76    }
77
78    #[test]
79    fn can_call()
80    {
81        let castable_factory = CastableFactory::new(&|_: &MockDIContainer| {
82            TransientPtr::new(Bacon { heal_amount: 27 })
83        });
84
85        let mock_di_container = MockDIContainer::new();
86
87        let output = castable_factory.call(&mock_di_container);
88
89        assert_eq!(output, TransientPtr::new(Bacon { heal_amount: 27 }));
90    }
91}
syrette/private/castable_factory/mod.rs

syrette/private/castable_factory/
mod.rs
