Struct RenderOutputCache 

pub struct RenderOutputCache<K>
where
    K: Hash + Eq + Send + Sync + Clone + 'static,
{ /* private fields */ }

Byte-weighted cache for RenderOutput values

Unlike entry-count caches, this tracks actual memory usage. A 4MB emoji bitmap consumes 4000x more quota than a 1KB glyph.

Implementations

impl<K> RenderOutputCache<K>

where K: Hash + Eq + Send + Sync + Clone + 'static,

pub fn new(max_bytes: u64) -> Self

Create a byte-weighted cache with specified maximum bytes.

pub fn with_default_limit() -> Self

Create a cache with the default byte limit (512 MB or env override).

pub fn get(&self, key: &K) -> Option<RenderOutput>

Look up a cached render output.

pub fn insert(&self, key: K, value: RenderOutput)

Store a render output in the cache.

Large outputs may be rejected by TinyLFU if not accessed frequently.

pub fn hit_rate(&self) -> f64

Cache hit rate (0.0 to 1.0).

pub fn weighted_size(&self) -> u64

Current weighted size in bytes.

pub fn entry_count(&self) -> u64

Number of entries in cache.

pub fn metrics(&self) -> CacheMetrics

Performance metrics.

pub fn clear(&self)

Clear all entries.

Trait Implementations

impl<K> Debug for RenderOutputCache<K>

where K: Hash + Eq + Send + Sync + Clone + 'static,

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

Formats the value using the given formatter.