Enum EvictionStrategy 

pub enum EvictionStrategy {
    Lru,
    Lfu,
    Fifo,
}

Discriminated union of the supported eviction strategies.

Variants

Lru

Least Recently Used — evict the entry with the oldest access timestamp.

Lfu

Least Frequently Used — evict the entry with the lowest access count (represented here as the smallest access timestamp; in a real system a separate frequency counter would be maintained).

Fifo

First In, First Out — evict the entry at position 0 in the slice.

Trait Implementations

impl Clone for EvictionStrategy

fn clone(&self) -> EvictionStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EvictionStrategy

impl Debug for EvictionStrategy

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

Formats the value using the given formatter.

impl Eq for EvictionStrategy

impl PartialEq for EvictionStrategy

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for EvictionStrategy