Struct Unique

#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
pub struct Unique<I, S = RandomState>
where
    I: Iterator,
    I::Item: Eq + Hash + Clone,
    S: BuildHasher, { /* private fields */ }

An iterator adapter to filter out duplicate elements.

See .unique() for more information.

Trait Implementations

impl<I, S> Clone for Unique<I, S> where I: Iterator + Clone, I::Item: Eq + Hash + Clone + Clone, S: BuildHasher + Clone,

fn clone(&self) -> Unique<I, S>

impl<I, S> Debug for Unique<I, S> where I: Iterator + Debug, I::Item: Hash + Eq + Debug + Clone, S: BuildHasher,

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

impl<I, S> DoubleEndedIterator for Unique<I, S> where I: DoubleEndedIterator, I::Item: Eq + Hash + Clone, S: BuildHasher,

fn next_back(&mut self) -> Option<Self::Item>

impl<I, S> FusedIterator for Unique<I, S> where I: FusedIterator, I::Item: Eq + Hash + Clone, S: BuildHasher,

impl<I, S> Iterator for Unique<I, S> where I: Iterator, I::Item: Eq + Hash + Clone, S: BuildHasher,

type Item = <I as Iterator>::Item;
fn next(&mut self) -> Option<Self::Item>
fn size_hint(&self) -> (usize, Option<usize>)
fn count(self) -> usize

Auto Trait Implementations

impl<I, S> Freeze for Unique<I, S> where <I as Iterator>::Item: Sized, UniqueBy<I, <I as Iterator>::Item, (), S>: Freeze,

impl<I, S> RefUnwindSafe for Unique<I, S> where <I as Iterator>::Item: Sized, UniqueBy<I, <I as Iterator>::Item, (), S>: RefUnwindSafe,

impl<I, S> Send for Unique<I, S> where <I as Iterator>::Item: Sized, UniqueBy<I, <I as Iterator>::Item, (), S>: Send,

impl<I, S> Sync for Unique<I, S> where <I as Iterator>::Item: Sized, UniqueBy<I, <I as Iterator>::Item, (), S>: Sync,

impl<I, S> Unpin for Unique<I, S> where <I as Iterator>::Item: Sized, UniqueBy<I, <I as Iterator>::Item, (), S>: Unpin,

impl<I, S> UnsafeUnpin for Unique<I, S> where <I as Iterator>::Item: Sized, UniqueBy<I, <I as Iterator>::Item, (), S>: UnsafeUnpin,

impl<I, S> UnwindSafe for Unique<I, S> where <I as Iterator>::Item: Sized, UniqueBy<I, <I as Iterator>::Item, (), S>: UnwindSafe,

Blanket Implementations

impl<I> IntoIterator for Unique<I, S> where I: Iterator,

type Item = <I as Iterator>::Item;
type IntoIter = I;
fn into_iter(self) -> I

impl<IT> MultiUnzip<()> for Unique<I, S> where IT: Iterator<Item = ()>,

fn multiunzip(self)

impl<IT, A, FromA> MultiUnzip<(FromA,)> for Unique<I, S> where IT: Iterator<Item = (A,)>, FromA: Default + Extend<A>,

fn multiunzip(self) -> (FromA,)

impl<IT, A, FromA, B, FromB> MultiUnzip<(FromA, FromB)> for Unique<I, S> where IT: Iterator<Item = (A, B)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>,

fn multiunzip(self) -> (FromA, FromB)

impl<IT, A, FromA, B, FromB, C, FromC> MultiUnzip<(FromA, FromB, FromC)> for Unique<I, S> where IT: Iterator<Item = (A, B, C)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>,

fn multiunzip(self) -> (FromA, FromB, FromC)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD> MultiUnzip<(FromA, FromB, FromC, FromD)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD, E, FromE> MultiUnzip<(FromA, FromB, FromC, FromD, FromE)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D, E)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>, FromE: Default + Extend<E>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD, FromE)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD, E, FromE, F, FromF> MultiUnzip<(FromA, FromB, FromC, FromD, FromE, FromF)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D, E, F)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>, FromE: Default + Extend<E>, FromF: Default + Extend<F>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD, FromE, FromF)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD, E, FromE, F, FromF, G, FromG> MultiUnzip<(FromA, FromB, FromC, FromD, FromE, FromF, FromG)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D, E, F, G)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>, FromE: Default + Extend<E>, FromF: Default + Extend<F>, FromG: Default + Extend<G>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD, FromE, FromF, FromG)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD, E, FromE, F, FromF, G, FromG, H, FromH> MultiUnzip<(FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D, E, F, G, H)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>, FromE: Default + Extend<E>, FromF: Default + Extend<F>, FromG: Default + Extend<G>, FromH: Default + Extend<H>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD, E, FromE, F, FromF, G, FromG, H, FromH, I, FromI> MultiUnzip<(FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH, FromI)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D, E, F, G, H, I)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>, FromE: Default + Extend<E>, FromF: Default + Extend<F>, FromG: Default + Extend<G>, FromH: Default + Extend<H>, FromI: Default + Extend<I>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH, FromI)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD, E, FromE, F, FromF, G, FromG, H, FromH, I, FromI, J, FromJ> MultiUnzip<(FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH, FromI, FromJ)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D, E, F, G, H, I, J)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>, FromE: Default + Extend<E>, FromF: Default + Extend<F>, FromG: Default + Extend<G>, FromH: Default + Extend<H>, FromI: Default + Extend<I>, FromJ: Default + Extend<J>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH, FromI, FromJ)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD, E, FromE, F, FromF, G, FromG, H, FromH, I, FromI, J, FromJ, K, FromK> MultiUnzip<(FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH, FromI, FromJ, FromK)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D, E, F, G, H, I, J, K)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>, FromE: Default + Extend<E>, FromF: Default + Extend<F>, FromG: Default + Extend<G>, FromH: Default + Extend<H>, FromI: Default + Extend<I>, FromJ: Default + Extend<J>, FromK: Default + Extend<K>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH, FromI, FromJ, FromK)

impl<IT, A, FromA, B, FromB, C, FromC, D, FromD, E, FromE, F, FromF, G, FromG, H, FromH, I, FromI, J, FromJ, K, FromK, L, FromL> MultiUnzip<(FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH, FromI, FromJ, FromK, FromL)> for Unique<I, S> where IT: Iterator<Item = (A, B, C, D, E, F, G, H, I, J, K, L)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>, FromC: Default + Extend<C>, FromD: Default + Extend<D>, FromE: Default + Extend<E>, FromF: Default + Extend<F>, FromG: Default + Extend<G>, FromH: Default + Extend<H>, FromI: Default + Extend<I>, FromJ: Default + Extend<J>, FromK: Default + Extend<K>, FromL: Default + Extend<L>,

fn multiunzip(self) -> (FromA, FromB, FromC, FromD, FromE, FromF, FromG, FromH, FromI, FromJ, FromK, FromL)

impl<T> Any for Unique<I, S> where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Unique<I, S> where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Unique<I, S> where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> CloneToUninit for Unique<I, S> where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T> From<T> for Unique<I, S>

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> IntoEither for Unique<I, S>

impl<T> Itertools for Unique<I, S> where T: Iterator + ?Sized,

impl<T> ToOwned for Unique<I, S> where T: Clone,

type Owned = T;
fn to_owned(&self) -> T
fn clone_into(&self, target: &mut T)

impl<T, U> Into<U> for Unique<I, S> where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

impl<T, U> TryFrom<U> for Unique<I, S> where U: Into<T>,

type Error = never;
fn try_from(value: U) -> Result<T, never>

impl<T, U> TryInto<U> for Unique<I, S> where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error;
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>