Struct CounterMap 

pub struct CounterMap { /* private fields */ }

A map that counts occurrences of string keys.

Implementations

impl CounterMap

pub fn new() -> Self

pub fn increment(&mut self, key: &str) -> u64

pub fn decrement(&mut self, key: &str) -> u64

pub fn get(&self, key: &str) -> u64

pub fn set(&mut self, key: &str, count: u64)

pub fn total(&self) -> u64

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn max_key(&self) -> Option<&str>

pub fn min_key(&self) -> Option<&str>

pub fn remove(&mut self, key: &str) -> Option<u64>

pub fn clear(&mut self)

pub fn keys(&self) -> Vec<&str>

Trait Implementations

impl Clone for CounterMap

fn clone(&self) -> CounterMap

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CounterMap

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

Formats the value using the given formatter.

impl Default for CounterMap

fn default() -> Self

Returns the “default value” for a type.