Struct RotationCache 

pub struct RotationCache { /* private fields */ }

A small (seed, dim)-keyed LRU cache over RotationMatrix values.

Implementations

impl RotationCache

pub const fn new(capacity: usize) -> Self

Construct a new cache with the given capacity.

A capacity of 0 is legal but makes every lookup a miss.

pub const fn default_sized() -> Self

Construct the default-sized cache (capacity DEFAULT_CAPACITY).

pub const fn capacity(&self) -> usize

The maximum number of entries this cache will retain.

pub fn len(&self) -> usize

The number of entries currently held by the cache.

pub fn is_empty(&self) -> bool

true iff the cache currently holds no entries.

pub fn get_or_build(&self, seed: u64, dimension: u32) -> RotationMatrix

Return the rotation matrix for (seed, dimension), building and caching one on miss. Returned values are Arc-backed clones, so the caller never blocks subsequent users of the cache.

pub fn clear(&self)

Drop all cached entries.

Trait Implementations

impl Debug for RotationCache

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

Formats the value using the given formatter.

impl Default for RotationCache

fn default() -> Self

Returns the “default value” for a type.