Struct Empties

pub struct Empties<CC = u64> {
    pub count: CC,
    pub empty: (),
}

Fields

count: CC

empty: ()

Trait Implementations

impl<'a> AsBytes<'a> for Empties<&'a u64>

fn as_bytes(&self) -> impl Iterator<Item = (u64, &'a [u8])>

Presents self as a sequence of byte slices, with their required alignment.

impl Clear for Empties

fn clear(&mut self)

Clears self, without changing its capacity.

impl<CC: Clone> Clone for Empties<CC>

fn clone(&self) -> Empties<CC>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Container for Empties

type Ref<'a> = ()

For each lifetime, a reference with that lifetime.

type Borrowed<'a> = Empties<&'a u64>

The type of a borrowed container.

fn borrow<'a>(&'a self) -> Self::Borrowed<'a>

Converts a reference to the type to a borrowed variant.

fn reborrow<'b, 'a: 'b>(thing: Self::Borrowed<'a>) -> Self::Borrowed<'b>

where Self: 'a,

Reborrows the borrowed type to a shorter lifetime. See Columnar::reborrow for details.

fn reborrow_ref<'b, 'a: 'b>(thing: Self::Ref<'a>) -> Self::Ref<'b>

where Self: 'a,

Reborrows the borrowed type to a shorter lifetime. See Columnar::reborrow for details.

fn extend_from_self(&mut self, _other: Self::Borrowed<'_>, range: Range<usize>)

Extends self by a range in other.

fn reserve_for<'a, I>(&mut self, _selves: I)

where Self: 'a, I: Iterator<Item = Self::Borrowed<'a>> + Clone,

fn with_capacity_for<'a, I>(selves: I) -> Self

where Self: 'a, I: Iterator<Item = Self::Borrowed<'a>> + Clone,

Allocates an empty container that can be extended by selves without reallocation.

impl<CC: Debug> Debug for Empties<CC>

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

Formats the value using the given formatter.

impl<CC: Default> Default for Empties<CC>

fn default() -> Empties<CC>

Returns the “default value” for a type.

impl<'a> FromBytes<'a> for Empties<&'a u64>

fn from_bytes(bytes: &mut impl Iterator<Item = &'a [u8]>) -> Self

Reconstructs self from a sequence of correctly aligned and sized bytes slices.

impl HeapSize for Empties

fn heap_size(&self) -> (usize, usize)

Active (len) and allocated (cap) heap sizes in bytes. This should not include the size of self itself.

impl<'a, CC> Index for &'a Empties<CC>

type Ref = &'a ()

The type returned by the get method.

fn get(&self, _index: usize) -> Self::Ref

fn last(&self) -> Option<Self::Ref>

where Self: Len,

fn index_iter(&self) -> IterOwn<&Self>

Converts &self into an iterator.

fn into_index_iter(self) -> IterOwn<Self>

where Self: Sized,

Converts self into an iterator.

impl<CC> Index for Empties<CC>

type Ref = ()

The type returned by the get method.

fn get(&self, _index: usize) -> Self::Ref

fn last(&self) -> Option<Self::Ref>

where Self: Len,

fn index_iter(&self) -> IterOwn<&Self>

Converts &self into an iterator.

fn into_index_iter(self) -> IterOwn<Self>

where Self: Sized,

Converts self into an iterator.

impl<CC> IndexMut for Empties<CC>

type IndexMut<'a> = &'a mut () where CC: 'a

Type mutably referencing an indexed element.

fn get_mut(&mut self, _index: usize) -> Self::IndexMut<'_>

fn last_mut(&mut self) -> Option<Self::IndexMut<'_>>

where Self: Len,

A reference to the last element, should one exist.

impl<CC: CopyAs<u64>> Len for Empties<CC>

fn len(&self) -> usize

The number of contained elements.

fn is_empty(&self) -> bool

Whether this contains no elements.

impl<'a> Push<&'a ()> for Empties

fn push(&mut self, _item: &())

Pushes an item onto self.

fn extend(&mut self, iter: impl IntoIterator<Item = &'a ()>)

Pushes elements of an iterator onto self.

impl Push<()> for Empties

fn push(&mut self, _item: ())

Pushes an item onto self.

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

Pushes elements of an iterator onto self.

impl<CC: Copy> Copy for Empties<CC>