Struct lending_iterator::lending_iterator::constructors::FromIter

#[repr(transparent)]
pub struct FromIter<I: ?Sized + Iterator>(pub I);

Note: since this wrapper only exists to avoid coherence issues, it is guaranteed to be a #[repr(transparent)] wrapper around its inner I.

This is a property unsafe code can rely on: it can thus use transmute to construct it.

It is also a property that will be upheld within future versions (should this property ever be broken in the future, the change would then be a semver-breaking one, and the type would be renamed to avoid footguns).

Tuple Fields

0: I

Trait Implementations

impl<'__, I: ?Sized + Iterator> LendingIteratorඞItem<'__, &'__ FromIter<I>> for FromIter<I>

type T = <I as Iterator>::Item

The “output” of this whole hand-rolled GAT: think of LendingIteratorඞItem<'lt>::T as of LendingIterator::Item<'lt>.

impl<I: ?Sized + Iterator> LendingIterator for FromIter<I>

fn next(self: &mut FromIter<I>) -> Option<I::Item>

Query the next() Item of this Self iterator.

fn try_for_each<Err>( &mut self, f: impl FnMut(Item<'_, Self>) -> Result<(), Err> ) -> Result<(), Err>

LendingIterator counterpart of Iterator::try_for_each().

fn try_fold<Acc, Err>( &mut self, acc: Acc, f: impl FnMut(Acc, Item<'_, Self>) -> Result<Acc, Err> ) -> Result<Acc, Err>

LendingIterator counterpart of Iterator::try_fold().

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

LendingIterator counterpart of Iterator::nth().