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1 | // Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
11 | #[derive(Debug, Eq, PartialEq, Copy, Clone)] | |
12 | pub struct Disr(pub u64); | |
13 | ||
14 | impl Disr { | |
15 | pub fn wrapping_add(self, other: Self) -> Self { | |
16 | Disr(self.0.wrapping_add(other.0)) | |
17 | } | |
18 | } | |
19 | ||
20 | impl ::std::ops::BitAnd for Disr { | |
21 | type Output = Disr; | |
22 | fn bitand(self, other: Self) -> Self { | |
23 | Disr(self.0 & other.0) | |
24 | } | |
25 | } | |
26 | ||
27 | impl From<::middle::ty::Disr> for Disr { | |
28 | fn from(i: ::middle::ty::Disr) -> Disr { | |
29 | Disr(i) | |
30 | } | |
31 | } | |
32 | ||
33 | impl From<usize> for Disr { | |
34 | fn from(i: usize) -> Disr { | |
35 | Disr(i as u64) | |
36 | } | |
37 | } | |
38 | ||
39 | impl PartialOrd for Disr { | |
40 | fn partial_cmp(&self, other: &Disr) -> Option<::std::cmp::Ordering> { | |
41 | self.0.partial_cmp(&other.0) | |
42 | } | |
43 | } | |
44 | ||
45 | impl Ord for Disr { | |
46 | fn cmp(&self, other: &Disr) -> ::std::cmp::Ordering { | |
47 | self.0.cmp(&other.0) | |
48 | } | |
49 | } |