orx_linked_list/iter/
doubly_link_iter.rs

1use super::{DoublyLinkIterPtr, doubly_link_iter_ptr::PairPtr};
2use crate::Doubly;
3use core::iter::FusedIterator;
4use orx_pinned_vec::PinnedVec;
5use orx_selfref_col::{CoreCol, Node, NodePtr};
6
7/// An ordered iterator over elements of the doubly linked list.
8///
9/// Can be created by calling the `iter` method.
10pub struct DoublyLinkIter<'a, T, P>(DoublyLinkIterPtr<'a, T, P>)
11where
12    P: PinnedVec<Node<Doubly<T>>>;
13
14impl<'a, T, P> DoublyLinkIter<'a, T, P>
15where
16    P: PinnedVec<Node<Doubly<T>>>,
17{
18    pub(crate) fn new(
19        col: &'a CoreCol<Doubly<T>, P>,
20        current: Option<PairPtr<T>>,
21        current_back: Option<NodePtr<Doubly<T>>>,
22    ) -> Self {
23        Self(DoublyLinkIterPtr::new(col, current, current_back))
24    }
25}
26
27impl<'a, T, P> Iterator for DoublyLinkIter<'a, T, P>
28where
29    P: PinnedVec<Node<Doubly<T>>>,
30{
31    type Item = (&'a T, &'a T);
32
33    #[inline(always)]
34    fn next(&mut self) -> Option<Self::Item> {
35        self.0.next().map(|p| {
36            (unsafe { self.0.col.data_unchecked(p.0) }, unsafe {
37                self.0.col.data_unchecked(p.1)
38            })
39        })
40    }
41}
42
43impl<T, P> FusedIterator for DoublyLinkIter<'_, T, P> where P: PinnedVec<Node<Doubly<T>>> {}
44
45impl<T, P> Clone for DoublyLinkIter<'_, T, P>
46where
47    P: PinnedVec<Node<Doubly<T>>>,
48{
49    fn clone(&self) -> Self {
50        Self(self.0.clone())
51    }
52}
orx_linked_list/iter/doubly_link_iter.rs

orx_linked_list/iter/
doubly_link_iter.rs
