73 lines
1.8 KiB
Rust
73 lines
1.8 KiB
Rust
use ahash::{AHasher, CallHasher, RandomState};
|
|
use std::hash::BuildHasher;
|
|
|
|
#[macro_use]
|
|
extern crate no_panic;
|
|
|
|
#[inline(never)]
|
|
#[no_panic]
|
|
fn hash_test_final(num: i32, string: &str) -> (u64, u64) {
|
|
use core::hash::Hasher;
|
|
let mut hasher1 = AHasher::new_with_keys(1, 2);
|
|
let mut hasher2 = AHasher::new_with_keys(3, 4);
|
|
hasher1.write_i32(num);
|
|
hasher2.write(string.as_bytes());
|
|
(hasher1.finish(), hasher2.finish())
|
|
}
|
|
|
|
#[inline(never)]
|
|
fn hash_test_final_wrapper(num: i32, string: &str) {
|
|
hash_test_final(num, string);
|
|
}
|
|
|
|
struct SimpleBuildHasher {
|
|
hasher: AHasher,
|
|
}
|
|
|
|
impl BuildHasher for SimpleBuildHasher {
|
|
type Hasher = AHasher;
|
|
|
|
fn build_hasher(&self) -> Self::Hasher {
|
|
self.hasher.clone()
|
|
}
|
|
}
|
|
|
|
#[inline(never)]
|
|
#[no_panic]
|
|
fn hash_test_specialize(num: i32, string: &str) -> (u64, u64) {
|
|
let hasher1 = AHasher::new_with_keys(1, 2);
|
|
let hasher2 = AHasher::new_with_keys(1, 2);
|
|
(
|
|
i32::get_hash(&num, &SimpleBuildHasher { hasher: hasher1 }),
|
|
<[u8]>::get_hash(string.as_bytes(), &SimpleBuildHasher { hasher: hasher2 }),
|
|
)
|
|
}
|
|
|
|
#[inline(never)]
|
|
fn hash_test_random_wrapper(num: i32, string: &str) {
|
|
hash_test_specialize(num, string);
|
|
}
|
|
|
|
#[inline(never)]
|
|
#[no_panic]
|
|
fn hash_test_random(num: i32, string: &str) -> (u64, u64) {
|
|
let build_hasher1 = RandomState::with_seeds(1, 2, 3, 4);
|
|
let build_hasher2 = RandomState::with_seeds(1, 2, 3, 4);
|
|
(
|
|
i32::get_hash(&num, &build_hasher1),
|
|
<[u8]>::get_hash(string.as_bytes(), &build_hasher2),
|
|
)
|
|
}
|
|
|
|
#[inline(never)]
|
|
fn hash_test_specialize_wrapper(num: i32, string: &str) {
|
|
hash_test_specialize(num, string);
|
|
}
|
|
|
|
#[test]
|
|
fn test_no_panic() {
|
|
hash_test_final_wrapper(2, "Foo");
|
|
hash_test_specialize_wrapper(2, "Bar");
|
|
hash_test_random_wrapper(2, "Baz");
|
|
}
|