Struct Multiset 

pub struct Multiset<T, S = DeterministicHasherBuilder> { /* private fields */ }

Multi-set of values.

Implementations

impl<T, S> Multiset<T, S>

pub fn new() -> Self

where S: Default,

Creates a new Multiset.

pub fn with_capacity(cap: usize) -> Self

where S: Default,

Creates a new Multiset with room for cap values.

pub fn len(&self) -> usize

Returns the number of values in the multiset, duplicates included.

pub fn is_empty(&self) -> bool

Checks whether the multiset holds no values.

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

where T: PartialEq,

Checks whether the multiset holds the given value.

pub fn iter(&self) -> Iter<'_, T>

Returns an iterator over the values of the multiset, in insertion order.

pub fn iter_mut(&mut self) -> IterMut<'_, T>

Returns a mutable iterator over the values of the multiset, in insertion order.

pub fn as_slice(&self) -> &[T]

Returns the values of the multiset as a slice, in insertion order.

impl<T: Hash, S: BuildHasher> Multiset<T, S>

pub fn singleton(value: T) -> Self

where S: Default,

Builds a multiset holding a single value.

pub fn insert(&mut self, value: T)

Inserts a value. Duplicates are kept: inserting a value already present adds another occurrence of it.

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

where T: PartialEq,

Inserts the value only if it is not already present. Returns true if it was inserted.

Trait Implementations

impl<T: Clone, S: Clone> Clone for Multiset<T, S>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug, S: Debug> Debug for Multiset<T, S>

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

Formats the value using the given formatter.

impl<T, S: Default> Default for Multiset<T, S>

fn default() -> Self

Returns the “default value” for a type.

impl<T: Eq, S> Eq for Multiset<T, S>

impl<T: Hash, S: BuildHasher> Extend<T> for Multiset<T, S>

fn extend<I: IntoIterator<Item = T>>(&mut self, iter: I)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: T)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl<T: Hash, S: Default + BuildHasher> FromIterator<T> for Multiset<T, S>

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

Creates a value from an iterator.

impl<T: Hash, S: BuildHasher> Hash for Multiset<T, S>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a, T, S> IntoIterator for &'a Multiset<T, S>

type Item = &'a T

The type of the elements being iterated over.

type IntoIter = Iter<'a, T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<'a, T, S> IntoIterator for &'a mut Multiset<T, S>

type Item = &'a mut T

The type of the elements being iterated over.

type IntoIter = IterMut<'a, T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<T, S> IntoIterator for Multiset<T, S>

type Item = T

The type of the elements being iterated over.

type IntoIter = IntoIter<T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<T: IntoJsonWithContext<N>, S, N> IntoJsonWithContext<N> for Multiset<T, S>

fn into_json_with(self, vocabulary: &N) -> Value

Converts this value into JSON, resolving the identifiers it holds against the given vocabulary.

impl<T: PartialEq<U>, U, S, P> PartialEq<Multiset<U, P>> for Multiset<T, S>

fn eq(&self, other: &Multiset<U, P>) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.