ppvm_traits::config

config¶

ppvm_traits::config

classConfig¶source

ppvm_traits::config::Config

Rust trait. Compile-time configuration bundle for a `PauliSum`.

pub trait Config: Clone

Associated items

Name	Type	Description
Storage	type Storage: PauliStorage	associated type. Backing storage for an individual Pauli word — typically a `[u8; N]` where `N` is the number of bytes packed.
Coeff	type Coeff: Coefficient	associated type. Numeric coefficient type (e.g. `f64`, `Complex<f64>`).
Strategy	type Strategy: Strategy	associated type. Truncation strategy applied when `PauliSum::truncate` runs.
BuildHasher	type BuildHasher: BuildHasher + Clone + Default + HashFinalize	associated type. Hasher used by the underlying map. It is also the hasher of the [`PauliWordType`](Self::PauliWordType) keys, so it must declare its cached-hash finalization via [`HashFinalize`].
PauliWordType	type PauliWordType: PauliWordTrait	associated type. Concrete [`PauliWordTrait`] implementation used as map keys.
Map	type Map: ACMap&lt;&lt;Self as &gt;::Storage, &lt;Self as &gt;::Coeff, &lt;Self as &gt;::BuildHasher, &lt;Self as &gt;::PauliWordType&gt;	associated type. Concrete map type satisfying [`ACMap`] over the chosen storage / coefficient / hasher / word combination.

`Config` is a zero-cost generic dispatch mechanism: it pins down the storage backing (`Storage`), coefficient type (`Coeff`), truncation strategy (`Strategy`), hasher (`BuildHasher`), Pauli-word representation (`PauliWordType`), and concrete map (`Map`) used by a single `PauliSum` instantiation. Pre-built bundles live in the submodules (`fxhash`, `indexmap`, …); user code may define its own.

source