Trait KeySet 

pub trait KeySet: Default {
    type Iter<'a>: Iterator<Item = Key>
       where Self: 'a;

    // Required methods
    fn insert(&mut self, key: Key);
    fn remove(&mut self, key: &Key);
    fn contains(&self, key: &Key) -> bool;
    fn iter(&self) -> Self::Iter<'_>;
    fn is_empty(&self) -> bool;
    fn count(&self) -> usize;
}

Required Associated Types

type Iter<'a>: Iterator<Item = Key> where Self: 'a

Required Methods

fn insert(&mut self, key: Key)

fn remove(&mut self, key: &Key)

fn contains(&self, key: &Key) -> bool

fn iter(&self) -> Self::Iter<'_>

fn is_empty(&self) -> bool

fn count(&self) -> usize

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl KeySet for BTreeSet<Key>

type Iter<'a> = Copied<Iter<'a, Key>> where Self: 'a

fn insert(&mut self, key: Key)

fn remove(&mut self, key: &Key)

fn contains(&self, key: &Key) -> bool

fn iter(&self) -> Self::Iter<'_>

fn is_empty(&self) -> bool

fn count(&self) -> usize

impl KeySet for RoaringTreemap

Available on crate feature roaring only.

type Iter<'a> = RoaringIter<'a> where Self: 'a

fn insert(&mut self, key: Key)

fn remove(&mut self, key: &Key)

fn contains(&self, key: &Key) -> bool

fn iter(&self) -> Self::Iter<'_>

fn is_empty(&self) -> bool

fn count(&self) -> usize

impl KeySet for HashSet<Key>

Available on crate feature imbl only.

type Iter<'a> = Copied<Iter<'a, Key, ArcK>> where Self: 'a

fn insert(&mut self, key: Key)

fn remove(&mut self, key: &Key)

fn contains(&self, key: &Key) -> bool

fn iter(&self) -> Self::Iter<'_>

fn is_empty(&self) -> bool

fn count(&self) -> usize

impl KeySet for OrdSet<Key>

Available on crate feature imbl only.

type Iter<'a> = Copied<Iter<'a, Key, ArcK>> where Self: 'a

fn insert(&mut self, key: Key)

fn remove(&mut self, key: &Key)

fn contains(&self, key: &Key) -> bool

fn iter(&self) -> Self::Iter<'_>

fn is_empty(&self) -> bool

fn count(&self) -> usize

impl<S: BuildHasher + Default> KeySet for HashSet<Key, S>

Available on crate feature std only.

type Iter<'a> = Copied<Iter<'a, Key>> where Self: 'a

fn insert(&mut self, key: Key)

fn remove(&mut self, key: &Key)

fn contains(&self, key: &Key) -> bool

fn iter(&self) -> Self::Iter<'_>

fn is_empty(&self) -> bool

fn count(&self) -> usize

impl<S: BuildHasher + Default> KeySet for HashSet<Key, S>

type Iter<'a> = Copied<Iter<'a, Key>> where Self: 'a

fn insert(&mut self, key: Key)

fn remove(&mut self, key: &Key)

fn contains(&self, key: &Key) -> bool

fn iter(&self) -> Self::Iter<'_>

fn is_empty(&self) -> bool

fn count(&self) -> usize

Implementors