Struct RefCountedHashSet

pub struct RefCountedHashSet<T> { /* private fields */ }

A RefCountedHashMap where the value is ().

Implementations

impl<T: Eq + Hash> RefCountedHashSet<T>

pub fn insert(&mut self, value: T) -> InsertResult<()>

Increments the reference count of the given value.

pub fn remove(&mut self, value: T) -> RemoveResult<()>

Decrements the reference count of the given value.

If the reference count reaches 0, the value will be removed from the set.

pub fn contains(&self, value: &T) -> bool

Returns true if the set contains the given value.

pub fn len(&self) -> usize

Returns the number of values in the set.

pub fn iter_counts(&self) -> impl Iterator<Item = (&T, NonZeroUsize)> + '_

Iterates over values and reference counts.

Trait Implementations

impl<T: Debug> Debug for RefCountedHashSet<T>

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

Formats the value using the given formatter.

impl<T> Default for RefCountedHashSet<T>

fn default() -> RefCountedHashSet<T>

Returns the “default value” for a type.

impl<T: Eq + Hash> FromIterator<T> for RefCountedHashSet<T>

fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> Self

Creates a value from an iterator.