axhash_core/hash/
hasher_impl.rs

1use super::AxHasher;
2
3use crate::bytes::hash_bytes_core;
4use crate::constants::SECRET;
5use crate::math::{avalanche, folded_multiply};
6
7use core::hash::Hasher;
8
9impl Hasher for AxHasher {
10    #[inline(always)]
11    fn finish(&self) -> u64 {
12        // Always flush the sponge before finalizing
13        let mut hasher = self.clone();
14        hasher.flush_sponge();
15        avalanche(hasher.acc)
16    }
17
18    #[inline(always)]
19    fn write(&mut self, bytes: &[u8]) {
20        self.flush_sponge();
21        self.acc = hash_bytes_core(bytes, self.acc);
22    }
23
24    #[inline(always)]
25    fn write_u8(&mut self, i: u8) {
26        self.push_num(i, 8);
27    }
28
29    #[inline(always)]
30    fn write_u16(&mut self, i: u16) {
31        self.push_num(i, 16);
32    }
33
34    #[inline(always)]
35    fn write_u32(&mut self, i: u32) {
36        self.push_num(i, 32);
37    }
38
39    #[inline(always)]
40    fn write_u64(&mut self, i: u64) {
41        self.push_num(i, 64);
42    }
43
44    #[inline(always)]
45    fn write_u128(&mut self, i: u128) {
46        self.flush_sponge();
47        let lo = i as u64;
48        let hi = (i >> 64) as u64;
49        self.acc = folded_multiply(lo ^ self.acc, hi ^ SECRET[1]);
50    }
51
52    #[inline(always)]
53    fn write_usize(&mut self, i: usize) {
54        #[cfg(target_pointer_width = "32")]
55        self.write_u32(i as u32);
56        #[cfg(target_pointer_width = "64")]
57        self.write_u64(i as u64);
58    }
59
60    #[inline(always)]
61    fn write_i8(&mut self, i: i8) {
62        self.write_u8(i as u8);
63    }
64
65    #[inline(always)]
66    fn write_i16(&mut self, i: i16) {
67        self.write_u16(i as u16);
68    }
69
70    #[inline(always)]
71    fn write_i32(&mut self, i: i32) {
72        self.write_u32(i as u32);
73    }
74
75    #[inline(always)]
76    fn write_i64(&mut self, i: i64) {
77        self.write_u64(i as u64);
78    }
79
80    #[inline(always)]
81    fn write_i128(&mut self, i: i128) {
82        self.write_u128(i as u128);
83    }
84
85    #[inline(always)]
86    fn write_isize(&mut self, i: isize) {
87        self.write_usize(i as usize);
88    }
89}
axhash_core/hash/hasher_impl.rs

axhash_core/hash/
hasher_impl.rs
