Struct CoverageCache 

pub struct CoverageCache { /* private fields */ }

Coverage by key, least recently used first out, within a byte budget.

Implementations

impl CoverageCache

pub fn new(budget: usize) -> Self

An empty cache holding at most budget bytes.

pub fn get(&mut self, key: u128) -> Option<Arc<TileCoverage>>

The coverage kept under key, now the most recently used.

pub fn insert(&mut self, key: u128, coverage: Arc<TileCoverage>)

Keeps coverage under key, dropping the least recently used until it fits. Coverage larger than the whole budget is not kept.

pub fn clear(&mut self)

Drops everything kept.

pub const fn bytes(&self) -> usize

Bytes kept.

pub fn len(&self) -> usize

Entries kept.

pub fn is_empty(&self) -> bool

Whether nothing is kept.

pub const fn hit_counts(&self) -> (u64, u64)

Lookups that found coverage, and ones that did not.

Trait Implementations

impl Debug for CoverageCache

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

Formats the value using the given formatter.

impl Default for CoverageCache

fn default() -> Self

Returns the “default value” for a type.