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