Struct FrequencyPool 

pub struct FrequencyPool { /* private fields */ }

A string pool that tracks how often each string is interned.

Implementations

impl FrequencyPool

pub fn new() -> Self

Create an empty frequency pool.

pub fn intern(&mut self, s: &str) -> InternedString

Intern a string and increment its frequency.

pub fn frequency(&self, id: InternedString) -> u64

Get the frequency of an interned string.

pub fn top_k(&self, k: usize) -> Vec<(InternedString, u64)>

Get the top-k most frequent strings.

pub fn resolve(&self, id: InternedString) -> Option<&str>

Resolve an interned string.

pub fn pool(&self) -> &StringPool

Inner pool reference.

pub fn total_calls(&self) -> u64

Total number of intern calls (sum of all frequencies).

pub fn len(&self) -> usize

Number of unique strings.

pub fn is_empty(&self) -> bool

Whether the pool is empty.

Trait Implementations

impl Default for FrequencyPool

fn default() -> Self

Returns the “default value” for a type.