| //! This module contains the parallel iterator types for double-ended queues |
| //! (`VecDeque<T>`). You will rarely need to interact with it directly |
| //! unless you have need to name one of the iterator types. |
| |
| use std::collections::VecDeque; |
| |
| use crate::iter::plumbing::*; |
| use crate::iter::*; |
| |
| use crate::slice; |
| use crate::vec; |
| |
| /// Parallel iterator over a double-ended queue |
| #[derive(Debug, Clone)] |
| pub struct IntoIter<T: Send> { |
| inner: vec::IntoIter<T>, |
| } |
| |
| into_par_vec! { |
| VecDeque<T> => IntoIter<T>, |
| impl<T: Send> |
| } |
| |
| delegate_indexed_iterator! { |
| IntoIter<T> => T, |
| impl<T: Send> |
| } |
| |
| /// Parallel iterator over an immutable reference to a double-ended queue |
| #[derive(Debug)] |
| pub struct Iter<'a, T: Sync> { |
| inner: Chain<slice::Iter<'a, T>, slice::Iter<'a, T>>, |
| } |
| |
| impl<'a, T: Sync> Clone for Iter<'a, T> { |
| fn clone(&self) -> Self { |
| Iter { |
| inner: self.inner.clone(), |
| } |
| } |
| } |
| |
| impl<'a, T: Sync> IntoParallelIterator for &'a VecDeque<T> { |
| type Item = &'a T; |
| type Iter = Iter<'a, T>; |
| |
| fn into_par_iter(self) -> Self::Iter { |
| let (a, b) = self.as_slices(); |
| Iter { |
| inner: a.into_par_iter().chain(b), |
| } |
| } |
| } |
| |
| delegate_indexed_iterator! { |
| Iter<'a, T> => &'a T, |
| impl<'a, T: Sync + 'a> |
| } |
| |
| /// Parallel iterator over a mutable reference to a double-ended queue |
| #[derive(Debug)] |
| pub struct IterMut<'a, T: Send> { |
| inner: Chain<slice::IterMut<'a, T>, slice::IterMut<'a, T>>, |
| } |
| |
| impl<'a, T: Send> IntoParallelIterator for &'a mut VecDeque<T> { |
| type Item = &'a mut T; |
| type Iter = IterMut<'a, T>; |
| |
| fn into_par_iter(self) -> Self::Iter { |
| let (a, b) = self.as_mut_slices(); |
| IterMut { |
| inner: a.into_par_iter().chain(b), |
| } |
| } |
| } |
| |
| delegate_indexed_iterator! { |
| IterMut<'a, T> => &'a mut T, |
| impl<'a, T: Send + 'a> |
| } |