dyn_ptr/
impls.rs

1use crate::DynPtr;
2use core::{
3    future::Future,
4    iter::FusedIterator,
5    pin::Pin,
6    task::{Context, Poll},
7};
8
9impl<F: ?Sized + Future + Unpin> Future for DynPtr<F> {
10    type Output = F::Output;
11
12    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
13        Pin::new(&mut **self).poll(cx)
14    }
15}
16
17impl<I: Iterator + ?Sized> Iterator for DynPtr<I> {
18    type Item = I::Item;
19    fn next(&mut self) -> Option<I::Item> {
20        (**self).next()
21    }
22    fn size_hint(&self) -> (usize, Option<usize>) {
23        (**self).size_hint()
24    }
25    fn last(self) -> Option<I::Item> {
26        #[inline]
27        fn some<T>(_: Option<T>, x: T) -> Option<T> {
28            Some(x)
29        }
30
31        self.fold(None, some)
32    }
33    fn nth(&mut self, n: usize) -> Option<I::Item> {
34        (**self).nth(n)
35    }
36}
37
38impl<I: DoubleEndedIterator + ?Sized> DoubleEndedIterator for DynPtr<I> {
39    fn next_back(&mut self) -> Option<I::Item> {
40        (**self).next_back()
41    }
42    fn nth_back(&mut self, n: usize) -> Option<I::Item> {
43        (**self).nth_back(n)
44    }
45}
46
47impl<I: ExactSizeIterator + ?Sized> ExactSizeIterator for DynPtr<I> {
48    fn len(&self) -> usize {
49        (**self).len()
50    }
51    fn is_empty(&self) -> bool {
52        (**self).is_empty()
53    }
54}
55
56impl<I: FusedIterator + ?Sized> FusedIterator for DynPtr<I> {}
dyn_ptr/impls.rs

dyn_ptr/
impls.rs
