Struct polars_utils::cache::FastFixedCache

pub struct FastFixedCache<K, V> { /* private fields */ }

Implementations

impl<K: Hash + Eq, V> FastFixedCache<K, V>

pub fn new(n: usize) -> Self

pub fn get<Q: Hash + Eq + ?Sized>(&self, key: &Q) -> Option<&V>

where K: Borrow<Q>,

pub fn get_mut<Q: Hash + Eq + ?Sized>(&mut self, key: &Q) -> Option<&mut V>

where K: Borrow<Q>,

pub fn insert(&mut self, key: K, value: V) -> &mut V

pub fn get_or_insert_with<Q, F>(&mut self, key: &Q, f: F) -> &mut V

where K: Borrow<Q>, Q: Hash + Eq + ToOwned<Owned = K> + ?Sized, F: FnOnce(&K) -> V,

pub fn try_get_or_insert_with<Q, F, E>( &mut self, key: &Q, f: F ) -> Result<&mut V, E>

where K: Borrow<Q>, Q: Hash + Eq + ToOwned<Owned = K> + ?Sized, F: FnOnce(&K) -> Result<V, E>,

Trait Implementations

impl<K: Clone, V: Clone> Clone for FastFixedCache<K, V>

fn clone(&self) -> FastFixedCache<K, V>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<K: Hash + Eq, V> Default for FastFixedCache<K, V>

fn default() -> Self

Returns the “default value” for a type.