Struct Item
pub(in ::option) struct Item<A> { pub(in ::option) opt: Option<A> }Fields
opt: Option<A>
Trait Implementations
impl<A> DoubleEndedIterator for Item<A>
fn next_back(&mut self) -> Option<A>
impl<A> ExactSizeIterator for Item<A>
fn len(&self) -> usize
impl<A> FusedIterator for Item<A>
impl<A> Iterator for Item<A>
type Item = A;fn next(&mut self) -> Option<A>fn size_hint(&self) -> (usize, Option<usize>)
impl<A> TrustedLen for Item<A>
impl<A: Clone> Clone for Item<A>
fn clone(&self) -> Item<A>
impl<A: Debug> Debug for Item<A>
fn fmt(&self, f: &mut Formatter<'_>) -> Result
Auto Trait Implementations
impl<A> Freeze for Item<A>
where
Option<A>: Freeze,
impl<A> RefUnwindSafe for Item<A>
where
Option<A>: RefUnwindSafe,
impl<A> Send for Item<A>
where
Option<A>: Send,
impl<A> Sync for Item<A>
where
Option<A>: Sync,
impl<A> Unpin for Item<A>
where
Option<A>: Unpin,
impl<A> UnsafeUnpin for Item<A>
where
Option<A>: UnsafeUnpin,
impl<A> UnwindSafe for Item<A>
where
Option<A>: UnwindSafe,
Blanket Implementations
impl<I> IntoIterator for Item<A>
where
I: Iterator,
type Item = <I as Iterator>::Item;type IntoIter = I;fn into_iter(self) -> I
impl<T> Any for Item<A>
where
T: 'static + ?Sized,
fn type_id(&self) -> TypeId
impl<T> Borrow<T> for Item<A>
where
T: ?Sized,
fn borrow(&self) -> &T
impl<T> BorrowMut<T> for Item<A>
where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
impl<T> CloneToUninit for Item<A>
where
T: Clone,
unsafe fn clone_to_uninit(&self, dest: *mut u8)
impl<T> From<T> for Item<A>
fn from(t: T) -> TReturns the argument unchanged.
impl<T> SizeHint for Item<A>
where
T: ?Sized,
fn lower_bound(&self) -> usizefn upper_bound(&self) -> Option<usize>
impl<T> SizedTypeProperties for Item<A>
impl<T, U> Into<U> for Item<A>
where
U: From<T>,
fn into(self) -> UCalls
U::from(self).That is, this conversion is whatever the implementation of
[From]<T> for Uchooses to do.
impl<T, U> TryFrom<U> for Item<A>
where
U: Into<T>,
type Error = Infallible;fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
impl<T, U> TryInto<U> for Item<A>
where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error;fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>