Enum Layout 

#[non_exhaustive]
pub enum Layout {
    Gathered,
    Precomputed,
}

The kernel data layout for the substitution scores, reported by Database::layout. Like the backend and score width, the layout is a performance choice only — it never changes results (see DETERMINISM.md).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Gathered

General layout: a per-column byte-shuffle gather of substitution scores from a per-letter query profile. The standard Rognes inner loop; works for any database.

Precomputed

Small-fixed-database layout: a precomputed query-letter × database-column score table, so each cell’s substitution vector is a direct load with no gather. Chosen automatically when the table is small enough to stay cache-resident (see Database::builder).

Trait Implementations

impl Clone for Layout

fn clone(&self) -> Layout

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Layout

impl Debug for Layout

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Layout

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Layout

impl Hash for Layout

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Layout

fn eq(&self, other: &Layout) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Layout