Struct RegexCache 

pub struct RegexCache { /* private fields */ }

A cache for compiled regular expressions.

The cache uses LRU (Least Recently Used) eviction when full.

Implementations

impl RegexCache

pub fn new(max_size: usize) -> Self

Create a new regex cache with the specified maximum size.

pub fn with_default_size() -> Self

Create a new regex cache with default size.

pub fn get_or_compile(&self, pattern: &str) -> Result<Arc<Regex>, Error>

Get or compile a regex pattern.

Returns a cached regex if available, otherwise compiles and caches it.

Errors

Returns an error if the pattern is invalid.

pub fn contains(&self, pattern: &str) -> bool

Check if a pattern is cached.

pub fn len(&self) -> usize

Get the current number of cached patterns.

pub fn is_empty(&self) -> bool

Check if the cache is empty.

pub fn clear(&self)

Clear the cache.

pub const fn max_size(&self) -> usize

Get the maximum cache size.

pub fn stats(&self) -> CacheStats

Get cache statistics.

pub fn total_hits(&self) -> usize

Get the total number of cache hits.

pub fn total_misses(&self) -> usize

Get the total number of cache misses.

pub fn hit_rate(&self) -> f64

Get the cache hit rate as a ratio (0.0 to 1.0).

Returns 1.0 if no accesses have been made.

Trait Implementations

impl Default for RegexCache

fn default() -> Self

Returns the “default value” for a type.