Struct GlyphCache 

pub struct GlyphCache { /* private fields */ }

Byte-weighted render output cache

Uses byte-weighted eviction (not entry count) to prevent memory explosions. Default limit is 512 MB, configurable via TYPF_CACHE_MAX_BYTES.

Implementations

impl GlyphCache

pub fn new() -> Self

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

pub fn with_max_bytes(max_bytes: u64) -> Self

Create a cache with a specific byte limit.

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

Get a cached render output.

Returns None if not found or if caching is globally disabled.

pub fn insert(&self, key: GlyphCacheKey, output: RenderOutput)

Insert a render output into the cache.

Does nothing if caching is globally disabled. Large outputs may be evicted sooner due to byte-weighted eviction.

pub fn hit_rate(&self) -> f64

pub fn metrics(&self) -> CacheMetrics

pub fn weighted_size(&self) -> u64

Current weighted size in bytes.

pub fn entry_count(&self) -> u64

Number of entries in cache.

pub fn clear(&self)

Clear all cached entries.

Trait Implementations

impl Default for GlyphCache

fn default() -> Self

Returns the “default value” for a type.