| //! This module contains the parallel iterator types for heaps |
| //! (`BinaryHeap<T>`). You will rarely need to interact with it directly |
| //! unless you have need to name one of the iterator types. |
| |
| use std::collections::BinaryHeap; |
| |
| use iter::plumbing::*; |
| use iter::*; |
| |
| use vec; |
| |
| /// Parallel iterator over a binary heap |
| #[derive(Debug, Clone)] |
| pub struct IntoIter<T: Ord + Send> { |
| inner: vec::IntoIter<T>, |
| } |
| |
| impl<T: Ord + Send> IntoParallelIterator for BinaryHeap<T> { |
| type Item = T; |
| type Iter = IntoIter<T>; |
| |
| fn into_par_iter(self) -> Self::Iter { |
| IntoIter { |
| inner: Vec::from(self).into_par_iter(), |
| } |
| } |
| } |
| |
| delegate_indexed_iterator! { |
| IntoIter<T> => T, |
| impl<T: Ord + Send> |
| } |
| |
| /// Parallel iterator over an immutable reference to a binary heap |
| #[derive(Debug)] |
| pub struct Iter<'a, T: Ord + Sync + 'a> { |
| inner: vec::IntoIter<&'a T>, |
| } |
| |
| impl<'a, T: Ord + Sync> Clone for Iter<'a, T> { |
| fn clone(&self) -> Self { |
| Iter { |
| inner: self.inner.clone(), |
| } |
| } |
| } |
| |
| into_par_vec! { |
| &'a BinaryHeap<T> => Iter<'a, T>, |
| impl<'a, T: Ord + Sync> |
| } |
| |
| delegate_indexed_iterator! { |
| Iter<'a, T> => &'a T, |
| impl<'a, T: Ord + Sync + 'a> |
| } |
| |
| // `BinaryHeap` doesn't have a mutable `Iterator` |