hooks 3.0.0-alpha.15

Compile-time, async hooks
Documentation 
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

use std::marker::PhantomData;

#[derive(Debug, Default)]
pub struct Mut<T>(pub T);

impl<T> Unpin for Mut<T> {}

hooks_core::impl_hook![
    impl<T> Mut<T> {
        fn unmount() {}

        #[inline]
        fn poll_next_update(self) {
            std::task::Poll::Ready(false)
        }
        #[inline]
        fn use_hook(self) -> &'hook mut T {
            &mut self.get_mut().0
        }

        #[inline]
        fn update_hook(self, _hook: _) {}

        fn h(self, hook: Mut<Option<T>>) {
            hook.get_mut().0.get_or_insert(self.0)
        }
    }
];

pub use Mut as use_mut;

pub struct UseMutWith<T, F: FnOnce() -> T>(pub F);
pub use UseMutWith as use_mut_with;

hooks_core::impl_hook![
    impl<T, F: FnOnce() -> T> UseMutWith<T, F> {
        #[inline]
        fn into_hook(self) -> Mut<T> {
            Mut(self.0())
        }
        #[inline]
        fn update_hook(self, _hook: _) {}

        fn h(self, hook: Mut<Option<T>>) {
            hook.get_mut().0.get_or_insert_with(self.0)
        }
    }
];

pub struct UseMutDefault<T: Default>(PhantomData<T>);
#[inline(always)]
pub fn use_mut_default<T: Default>() -> UseMutDefault<T> {
    UseMutDefault(PhantomData)
}

hooks_core::impl_hook![
    impl<T: Default> UseMutDefault<T> {
        #[inline]
        fn into_hook(self) -> Mut<T> {
            Mut::default()
        }
        #[inline]
        fn update_hook(self, _hook: _) {}
        #[inline]
        fn h(self, hook: Mut<T>) {
            hooks_core::Hook::use_hook(hook)
        }
    }
];