ppvm_pauli_sum/config/
dashmap.rs

1// SPDX-FileCopyrightText: 2026 The PPVM Authors
2// SPDX-License-Identifier: Apache-2.0
3
4use std::marker::PhantomData;
5
6use ppvm_pauli_word::word::PauliWord;
7use ppvm_traits::config::Config;
8use ppvm_traits::traits::{Coefficient, NoStrategy, PauliWordTrait, Strategy};
9
10/// `DashMap`-backed concurrent [`Config`] with `[u8; N]` storage and `FxHasher`.
11#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
12pub struct ByteFxHash<
13    const N: usize,
14    C: Coefficient + Sync + Send,
15    St: Strategy = NoStrategy,
16    W: PauliWordTrait = PauliWord<[u8; N], fxhash::FxBuildHasher>,
17>(PhantomData<(C, St, W)>);
18
19impl<const N: usize, C: Coefficient + Sync + Send, St: Strategy, W: PauliWordTrait + Sync + Send>
20    Config for ByteFxHash<N, C, St, W>
21{
22    type Storage = [u8; N];
23    type Coeff = C;
24    type BuildHasher = fxhash::FxBuildHasher;
25    type PauliWordType = W;
26    type Map = dashmap::DashMap<W, C, Self::BuildHasher>;
27    type Strategy = St;
28}
29
30/// `DashMap`-backed concurrent [`Config`] with `[u8; N]` storage and `gxhash`.
31#[cfg(all(
32    feature = "gxhash",
33    target_feature = "aes",
34    any(target_arch = "x86_64", target_arch = "aarch64")
35))]
36#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
37pub struct ByteGxHash<
38    const N: usize,
39    C: Coefficient + Sync + Send,
40    St: Strategy = NoStrategy,
41    W: PauliWordTrait + Sync + Send = PauliWord<[u8; N], gxhash::GxBuildHasher>,
42>(PhantomData<(C, St, W)>);
43
44#[cfg(all(
45    feature = "gxhash",
46    target_feature = "aes",
47    any(target_arch = "x86_64", target_arch = "aarch64")
48))]
49impl<const N: usize, C: Coefficient + Sync + Send, St: Strategy, W: PauliWordTrait + Sync + Send>
50    Config for ByteGxHash<N, C, St, W>
51{
52    type Storage = [u8; N];
53    type Coeff = C;
54    type BuildHasher = gxhash::GxBuildHasher;
55    type PauliWordType = W;
56    type Map = dashmap::DashMap<W, C, Self::BuildHasher>;
57    type Strategy = St;
58}
59
60/// [`ByteFxHash`] specialised to `f64` coefficients.
61pub type ByteFxHashF64<const N: usize, St = NoStrategy> = ByteFxHash<N, f64, St>;
62/// [`ByteGxHash`] specialised to `f64` coefficients.
63#[cfg(all(
64    feature = "gxhash",
65    target_feature = "aes",
66    any(target_arch = "x86_64", target_arch = "aarch64")
67))]
68pub type ByteGxHashF64<const N: usize, St = NoStrategy> = ByteGxHash<N, f64, St>;
ppvm_pauli_sum/config/dashmap.rs

ppvm_pauli_sum/config/
dashmap.rs
