aboutsummaryrefslogtreecommitdiff
path: root/vendor/rayon/src/iter/rev.rs
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/rayon/src/iter/rev.rs')
-rw-r--r--vendor/rayon/src/iter/rev.rs123
1 files changed, 0 insertions, 123 deletions
diff --git a/vendor/rayon/src/iter/rev.rs b/vendor/rayon/src/iter/rev.rs
deleted file mode 100644
index a4c3b7c..0000000
--- a/vendor/rayon/src/iter/rev.rs
+++ /dev/null
@@ -1,123 +0,0 @@
-use super::plumbing::*;
-use super::*;
-use std::iter;
-
-/// `Rev` is an iterator that produces elements in reverse order. This struct
-/// is created by the [`rev()`] method on [`IndexedParallelIterator`]
-///
-/// [`rev()`]: trait.IndexedParallelIterator.html#method.rev
-/// [`IndexedParallelIterator`]: trait.IndexedParallelIterator.html
-#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
-#[derive(Debug, Clone)]
-pub struct Rev<I: IndexedParallelIterator> {
- base: I,
-}
-
-impl<I> Rev<I>
-where
- I: IndexedParallelIterator,
-{
- /// Creates a new `Rev` iterator.
- pub(super) fn new(base: I) -> Self {
- Rev { base }
- }
-}
-
-impl<I> ParallelIterator for Rev<I>
-where
- I: IndexedParallelIterator,
-{
- type Item = I::Item;
-
- fn drive_unindexed<C>(self, consumer: C) -> C::Result
- where
- C: UnindexedConsumer<Self::Item>,
- {
- bridge(self, consumer)
- }
-
- fn opt_len(&self) -> Option<usize> {
- Some(self.len())
- }
-}
-
-impl<I> IndexedParallelIterator for Rev<I>
-where
- I: IndexedParallelIterator,
-{
- fn drive<C: Consumer<Self::Item>>(self, consumer: C) -> C::Result {
- bridge(self, consumer)
- }
-
- fn len(&self) -> usize {
- self.base.len()
- }
-
- fn with_producer<CB>(self, callback: CB) -> CB::Output
- where
- CB: ProducerCallback<Self::Item>,
- {
- let len = self.base.len();
- return self.base.with_producer(Callback { callback, len });
-
- struct Callback<CB> {
- callback: CB,
- len: usize,
- }
-
- impl<T, CB> ProducerCallback<T> for Callback<CB>
- where
- CB: ProducerCallback<T>,
- {
- type Output = CB::Output;
- fn callback<P>(self, base: P) -> CB::Output
- where
- P: Producer<Item = T>,
- {
- let producer = RevProducer {
- base,
- len: self.len,
- };
- self.callback.callback(producer)
- }
- }
- }
-}
-
-struct RevProducer<P> {
- base: P,
- len: usize,
-}
-
-impl<P> Producer for RevProducer<P>
-where
- P: Producer,
-{
- type Item = P::Item;
- type IntoIter = iter::Rev<P::IntoIter>;
-
- fn into_iter(self) -> Self::IntoIter {
- self.base.into_iter().rev()
- }
-
- fn min_len(&self) -> usize {
- self.base.min_len()
- }
- fn max_len(&self) -> usize {
- self.base.max_len()
- }
-
- fn split_at(self, index: usize) -> (Self, Self) {
- let (left, right) = self.base.split_at(self.len - index);
- (
- RevProducer {
- base: right,
- len: index,
- },
- RevProducer {
- base: left,
- len: self.len - index,
- },
- )
- }
-}