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
use collections::enum_set::EnumSet as StdEnumSet;
use collections::enum_set::CLike;
use std::ops::{Deref, DerefMut};
use ops::*;
pub struct EnumSet<T>
{
es: StdEnumSet<T>
}
impl<E: CLike> EnumSet<E>
{
pub fn wrap(es: StdEnumSet<E>) -> EnumSet<E> {
EnumSet{es: es}
}
}
impl<T> Deref for EnumSet<T>
{
type Target = StdEnumSet<T>;
fn deref<'a>(&'a self) -> &'a StdEnumSet<T> {
&self.es
}
}
impl<T> DerefMut for EnumSet<T>
{
fn deref_mut<'a>(&'a mut self) -> &'a mut StdEnumSet<T> {
&mut self.es
}
}
impl<E: CLike> Contains<E> for EnumSet<E>
{
contains_deref_impl!(E);
}
macro_rules! set_op_impl
{
( $( $t: ident, $m:ident );* ) =>
{$(
impl<E: CLike> $t for EnumSet<E>
{
type Output = EnumSet<E>;
fn $m(&self, other: &EnumSet<E>) -> EnumSet<E> {
EnumSet::wrap(self.deref().$m(**other))
}
}
)*}
}
set_op_impl! {
Intersection, intersection;
Union, union
}