curv/
marker.rs

1use std::cmp::Ordering;
2use std::fmt;
3use std::hash::{Hash, Hasher};
4use std::marker::PhantomData;
5
6use digest::Digest;
7
8/// Zero-sized marker type denoting choice of hash function
9pub struct HashChoice<H: Digest + Clone>(PhantomData<fn(H)>);
10
11impl<H: Digest + Clone> Default for HashChoice<H> {
12    fn default() -> Self {
13        Self(PhantomData)
14    }
15}
16
17impl<H: Digest + Clone> HashChoice<H> {
18    pub fn new() -> Self {
19        Self::default()
20    }
21}
22
23impl<H: Digest + Clone> Clone for HashChoice<H> {
24    fn clone(&self) -> Self {
25        Self::default()
26    }
27}
28
29impl<H: Digest + Clone> fmt::Debug for HashChoice<H> {
30    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
31        write!(f, "HashChoice<_>")
32    }
33}
34
35impl<H: Digest + Clone> PartialEq for HashChoice<H> {
36    fn eq(&self, _other: &Self) -> bool {
37        true
38    }
39}
40
41impl<H: Digest + Clone> Eq for HashChoice<H> {}
42
43impl<H: Digest + Clone> PartialOrd for HashChoice<H> {
44    fn partial_cmp(&self, _other: &Self) -> Option<Ordering> {
45        Some(Ordering::Equal)
46    }
47}
48
49impl<H: Digest + Clone> Ord for HashChoice<H> {
50    fn cmp(&self, _other: &Self) -> Ordering {
51        Ordering::Equal
52    }
53}
54
55impl<H: Digest + Clone> Hash for HashChoice<H> {
56    fn hash<N: Hasher>(&self, _state: &mut N) {}
57}
curv/marker.rs

curv/
marker.rs
