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        if self.sponge_bits == 0 {
13            avalanche(self.acc)
14        } else {
15            let lo = self.sponge as u64;
16            let hi = (self.sponge >> 64) as u64;
17            avalanche(folded_multiply(lo ^ self.acc, hi ^ SECRET[1]))
18        }
19    }
20
21    #[inline(always)]
22    fn write(&mut self, bytes: &[u8]) {
23        self.flush_sponge();
24        self.acc = hash_bytes_core(bytes, self.acc);
25    }
26
27    #[inline(always)]
28    fn write_u8(&mut self, i: u8) {
29        self.push_num(i, 8);
30    }
31
32    #[inline(always)]
33    fn write_u16(&mut self, i: u16) {
34        self.push_num(i, 16);
35    }
36
37    #[inline(always)]
38    fn write_u32(&mut self, i: u32) {
39        self.push_num(i, 32);
40    }
41
42    #[inline(always)]
43    fn write_u64(&mut self, i: u64) {
44        self.push_num(i, 64);
45    }
46
47    #[inline(always)]
48    fn write_u128(&mut self, i: u128) {
49        self.flush_sponge();
50        let lo = i as u64;
51        let hi = (i >> 64) as u64;
52        self.acc = folded_multiply(lo ^ self.acc, hi ^ SECRET[1]);
53    }
54
55    #[inline(always)]
56    fn write_usize(&mut self, i: usize) {
57        #[cfg(target_pointer_width = "32")]
58        self.write_u32(i as u32);
59        #[cfg(target_pointer_width = "64")]
60        self.write_u64(i as u64);
61    }
62
63    #[inline(always)]
64    fn write_i8(&mut self, i: i8) {
65        self.write_u8(i as u8);
66    }
67
68    #[inline(always)]
69    fn write_i16(&mut self, i: i16) {
70        self.write_u16(i as u16);
71    }
72
73    #[inline(always)]
74    fn write_i32(&mut self, i: i32) {
75        self.write_u32(i as u32);
76    }
77
78    #[inline(always)]
79    fn write_i64(&mut self, i: i64) {
80        self.write_u64(i as u64);
81    }
82
83    #[inline(always)]
84    fn write_i128(&mut self, i: i128) {
85        self.write_u128(i as u128);
86    }
87
88    #[inline(always)]
89    fn write_isize(&mut self, i: isize) {
90        self.write_usize(i as usize);
91    }
92}
axhash_core/hash/hasher_impl.rs

axhash_core/hash/
hasher_impl.rs
