Struct narrow::array::Nulls

pub struct Nulls<T: Unit> { /* private fields */ }

New type wrapper for null elements that implements Length.

Trait Implementations

impl<T: Clone + Unit> Clone for Nulls<T>

fn clone(&self) -> Nulls<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Unit> Debug for Nulls<T>

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

Formats the value using the given formatter.

impl<T: Default + Unit> Default for Nulls<T>

fn default() -> Nulls<T>

Returns the “default value” for a type.

impl<T: Unit> Extend<T> for Nulls<T>

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: A)

🔬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: Unit> FromIterator<T> for Nulls<T>

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

Creates a value from an iterator.

impl<T: Unit> Index for Nulls<T>

type Item<'a> = T where Self: 'a

The item.

unsafe fn index_unchecked(&self, _index: usize) -> Self::Item<'_>

Returns the value at given index. Skips bound checking.

fn index(&self, index: usize) -> Option<Self::Item<'_>>

Returns the value at given index. Returns None if the index is out of range.

fn index_checked(&self, index: usize) -> Self::Item<'_>

Returns the value at given index. Panics if the index is out of bounds.

impl<T: Unit> IntoIterator for Nulls<T>

type IntoIter = Take<Repeat<<T as Unit>::Item>>

Which kind of iterator are we turning this into?

type Item = <T as Unit>::Item

The type of the elements being iterated over.

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<T: Unit> Length for Nulls<T>

fn len(&self) -> usize

Returns the number of elements in the collection, also referred to as its length.

fn is_empty(&self) -> bool

Returns true if there are no elements in the collection.

impl<T: Copy + Unit> Copy for Nulls<T>