cardano_sdk/chain/
hash.rs

1use std::fmt;
2
3macro_rules! special_hash {
4    ($name:ident, $size:literal) => {
5        #[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
6        pub struct $name(pub [u8; $size]);
7
8        impl fmt::Debug for $name {
9            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
10                write!(f, "{}", hex::encode(self.0))
11            }
12        }
13
14        impl fmt::Display for $name {
15            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
16                write!(f, "{}", hex::encode(self.0))
17            }
18        }
19
20        impl $name {
21            pub fn from_hex(s: &str) -> Option<Self> {
22                if s.len() == $size * 2 {
23                    match hex::decode(s) {
24                        Ok(v) => {
25                            let mut out = [0; $size];
26                            out.copy_from_slice(&v);
27                            Some($name(out))
28                        }
29                        Err(_) => None,
30                    }
31                } else {
32                    None
33                }
34            }
35
36            pub fn from_slice(s: &[u8]) -> Option<Self> {
37                if s.len() == $size {
38                    let mut out = [0; $size];
39                    out.copy_from_slice(&s);
40                    Some($name(out))
41                } else {
42                    None
43                }
44            }
45
46            pub fn from_bytes(s: [u8; $size]) -> Self {
47                Self(s)
48            }
49        }
50
51        impl ::cbored::Decode for $name {
52            fn decode<'a>(
53                reader: &mut ::cbored::Reader<'a>,
54            ) -> Result<Self, ::cbored::DecodeError> {
55                Ok(Self(reader.decode().map_err(|e| e.push::<Self>())?))
56            }
57        }
58
59        impl ::cbored::Encode for $name {
60            fn encode(&self, writer: &mut ::cbored::Writer) {
61                writer.encode(&self.0)
62            }
63        }
64    };
65}
66
67special_hash!(ByronHash, 32);
68special_hash!(HeaderHash, 32);
69special_hash!(TxHash, 32);
70special_hash!(VRFKeyHash, 32);
71special_hash!(Ed25519KeyHash, 28);
72special_hash!(ScriptHash, 28);
73special_hash!(PoolMetadataHash, 32);
74special_hash!(GenesisDelegateHash, 28);
75special_hash!(GenesisHash, 28);
76special_hash!(ScriptDataHash, 32);
77special_hash!(MetadataHash, 32);
cardano_sdk/chain/hash.rs

cardano_sdk/chain/
hash.rs
