rayon/iter/
zip_eq.rs

1use super::plumbing::*;
2use super::*;
3
4/// An [`IndexedParallelIterator`] that iterates over two parallel iterators of equal
5/// length simultaneously.
6///
7/// This struct is created by the [`zip_eq`] method on [`IndexedParallelIterator`],
8/// see its documentation for more information.
9///
10/// [`zip_eq`]: trait.IndexedParallelIterator.html#method.zip_eq
11/// [`IndexedParallelIterator`]: trait.IndexedParallelIterator.html
12#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
13#[derive(Debug, Clone)]
14pub struct ZipEq<A: IndexedParallelIterator, B: IndexedParallelIterator> {
15    zip: Zip<A, B>,
16}
17
18impl<A, B> ZipEq<A, B>
19where
20    A: IndexedParallelIterator,
21    B: IndexedParallelIterator,
22{
23    /// Creates a new `ZipEq` iterator.
24    pub(super) fn new(a: A, b: B) -> Self {
25        ZipEq {
26            zip: super::Zip::new(a, b),
27        }
28    }
29}
30
31impl<A, B> ParallelIterator for ZipEq<A, B>
32where
33    A: IndexedParallelIterator,
34    B: IndexedParallelIterator,
35{
36    type Item = (A::Item, B::Item);
37
38    fn drive_unindexed<C>(self, consumer: C) -> C::Result
39    where
40        C: UnindexedConsumer<Self::Item>,
41    {
42        bridge(self.zip, consumer)
43    }
44
45    fn opt_len(&self) -> Option<usize> {
46        Some(self.zip.len())
47    }
48}
49
50impl<A, B> IndexedParallelIterator for ZipEq<A, B>
51where
52    A: IndexedParallelIterator,
53    B: IndexedParallelIterator,
54{
55    fn drive<C>(self, consumer: C) -> C::Result
56    where
57        C: Consumer<Self::Item>,
58    {
59        bridge(self.zip, consumer)
60    }
61
62    fn len(&self) -> usize {
63        self.zip.len()
64    }
65
66    fn with_producer<CB>(self, callback: CB) -> CB::Output
67    where
68        CB: ProducerCallback<Self::Item>,
69    {
70        self.zip.with_producer(callback)
71    }
72}
rayon/iter/zip_eq.rs

rayon/iter/
zip_eq.rs
