gc-arena 0.6.0

safe, incrementally garbage collected arenas
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

use crate::Rootable;
use crate::collect::Collect;

use alloc::borrow::{Borrow, BorrowMut};
use core::convert::{AsMut, AsRef};
use core::ops::{Deref, DerefMut};

/// A wrapper type that implements Collect whenever the contained T is 'static, which is useful in
/// generic contexts
#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Default)]
#[repr(transparent)]
pub struct Static<T: ?Sized>(pub T);

impl<'a, T: ?Sized + 'static> Rootable<'a> for Static<T> {
    type Root = Static<T>;
}

unsafe impl<'gc, T: ?Sized + 'static> Collect<'gc> for Static<T> {
    const NEEDS_TRACE: bool = false;
}

impl<T> From<T> for Static<T> {
    fn from(value: T) -> Self {
        Self(value)
    }
}

impl<T: ?Sized> AsRef<T> for Static<T> {
    fn as_ref(&self) -> &T {
        &self.0
    }
}

impl<T: ?Sized> AsMut<T> for Static<T> {
    fn as_mut(&mut self) -> &mut T {
        &mut self.0
    }
}

impl<T: ?Sized> Deref for Static<T> {
    type Target = T;
    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

impl<T: ?Sized> DerefMut for Static<T> {
    fn deref_mut(&mut self) -> &mut Self::Target {
        &mut self.0
    }
}

impl<T: ?Sized> Borrow<T> for Static<T> {
    fn borrow(&self) -> &T {
        &self.0
    }
}

impl<T: ?Sized> BorrowMut<T> for Static<T> {
    fn borrow_mut(&mut self) -> &mut T {
        &mut self.0
    }
}