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
use super::*;
#[derive(Debug, Clone, Default)]
pub struct WeakId(Weak<Term>);
impl TermId {
#[inline]
pub fn downgrade(&self) -> WeakId {
WeakId(Arc::downgrade(&self.0))
}
}
impl WeakId {
#[inline]
pub fn ptr_eq(&self, other: &WeakId) -> bool {
self.0.ptr_eq(&other.0)
}
#[inline]
pub fn as_ptr(&self) -> *const Term {
self.0.as_ptr()
}
#[inline]
pub fn upgrade(&self) -> Option<TermId> {
self.0.upgrade().map(TermId)
}
}
impl PartialEq for WeakId {
#[inline]
fn eq(&self, other: &WeakId) -> bool {
self.0.ptr_eq(&other.0)
}
}
impl PartialEq<TermId> for WeakId {
#[inline]
fn eq(&self, other: &TermId) -> bool {
self.0.as_ptr() == other.as_ptr()
}
}
impl PartialEq<WeakId> for TermId {
#[inline]
fn eq(&self, other: &WeakId) -> bool {
self.as_ptr() == other.0.as_ptr()
}
}
impl Eq for WeakId {}
impl Hash for WeakId {
#[inline]
fn hash<H: Hasher>(&self, state: &mut H) {
self.0.as_ptr().hash(state)
}
}