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
use crate::prelude::*;
pub struct Index<T> {
pub raw : usize,
phantom : PhantomData<T>
}
impl<T> Index<T> {
pub fn new(raw:usize) -> Self {
let phantom = default();
Self {raw,phantom}
}
}
impl<T> Copy for Index<T> {}
impl<T> Eq for Index<T> {}
impl<T> Clone for Index<T> {
fn clone(&self) -> Self {
*self
}
}
impl<T> Hash for Index<T> {
fn hash<H:std::hash::Hasher>(&self, state:&mut H) {
self.raw.hash(state)
}
}
impl<T> PartialEq for Index<T> {
fn eq(&self, other:&Self) -> bool {
self.raw == other.raw
}
}
impl<T> From<Index<T>> for usize {
fn from(t:Index<T>) -> Self {
t.raw
}
}
impl<T> From<&Index<T>> for usize {
fn from(t:&Index<T>) -> Self {
t.raw
}
}
impl<T> From<usize> for Index<T> {
fn from(t:usize) -> Self {
Self::new(t)
}
}
impl<T> From<&usize> for Index<T> {
fn from(t:&usize) -> Self {
Self::new(*t)
}
}
impl<T> Debug for Index<T> {
fn fmt(&self, f:&mut fmt::Formatter<'_>) -> fmt::Result {
write!(f,"{}",self.raw)
}
}
impl<T> Display for Index<T> {
fn fmt(&self, f:&mut fmt::Formatter<'_>) -> fmt::Result {
write!(f,"{}",self.raw)
}
}