scsys_crypto/hash/
mod.rs

1/*
2    Appellation: hash <module>
3    Contrib: @FL03
4*/
5#[doc(inline)]
6pub use self::{hasher::*, types::prelude::*};
7
8pub mod hasher;
9
10pub mod types {
11    #[doc(inline)]
12    pub use self::prelude::*;
13
14    pub mod h160;
15    pub mod h256;
16
17    pub(crate) mod prelude {
18        #[doc(inline)]
19        pub use super::aliases::*;
20        #[doc(inline)]
21        pub use super::h160::*;
22        #[doc(inline)]
23        pub use super::h256::*;
24    }
25
26    pub(crate) mod aliases {
27        use generic_array::GenericArray;
28        use typenum::{B0, B1, UInt, UTerm};
29        /// a type alias for a generic hash output
30        pub type GenericHashOutput =
31            UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>;
32        /// the [GenericHash] type alias defines a standard hash format for the crate
33        pub type GenericHash<T = u8, Output = GenericHashOutput> = GenericArray<T, Output>;
34    }
35}
36
37pub(crate) mod prelude {
38    #[doc(inline)]
39    pub use super::RawHash;
40    #[doc(inline)]
41    pub use super::types::prelude::*;
42}
43
44pub trait RawHash {
45    private!();
46}
47
48pub trait SizedHash: RawHash {
49    const N: usize;
50}
51
52macro_rules! impl_raw_hash {
53    ($($t:ty),* $(,)?) => {
54        $(
55            impl_raw_hash!(@impl $t);
56        )*
57    };
58    ($($t:ty: $n:literal),* $(,)?) => {
59        $(
60            impl_raw_hash!(@sized $t => $n);
61        )*
62    };
63    (@impl $type:ty) => {
64        impl RawHash for $type {
65            seal!();
66        }
67    };
68    (@sized $type:ty => $n:literal) => {
69        impl RawHash for $type {
70            seal!();
71        }
72
73        impl SizedHash for $type {
74            const N: usize = $n;
75        }
76    };
77}
78
79impl_raw_hash! {
80    GenericHash,
81    [u8],
82}
83
84impl_raw_hash! {
85    [u8; 20]: 20,
86    [u8; 32]: 32,
87    H160: 20,
88    H256: 32,
89}
90
91#[cfg(feature = "alloc")]
92impl_raw_hash! {
93    alloc::vec::Vec<u8>,
94}
scsys_crypto/hash/mod.rs

scsys_crypto/hash/
mod.rs
