orx_concurrent_iter

Trait ExactSizeConcurrentIter

Source 
pub trait ExactSizeConcurrentIter: ConcurrentIter {
    // Required method
    fn len(&self) -> usize;

    // Provided method
    fn is_empty(&self) -> bool { ... }
}
Expand description

A concurrent iterator which has a certain information of the number of remaining elements.

It can be considered as the concurrent counterpart of the ExactSizeIterator.

§Examples

use orx_concurrent_iter::*;

let vec = vec!['x', 'y'];

let con_iter = vec.con_iter();
assert_eq!(con_iter.len(), 2);

assert_eq!(con_iter.next(), Some(&'x'));
assert_eq!(con_iter.len(), 1);

assert_eq!(con_iter.next(), Some(&'y'));
assert_eq!(con_iter.len(), 0);
assert!(con_iter.is_empty());

assert_eq!(con_iter.next(), None);
assert_eq!(con_iter.len(), 0);
assert!(con_iter.is_empty());

Required Methods§

Source

fn len(&self) -> usize

Returns the number remaining elements in the concurrent iterator.

§Examples
use orx_concurrent_iter::*;

let vec = vec!['x', 'y'];

let con_iter = vec.con_iter();
assert_eq!(con_iter.len(), 2);

assert_eq!(con_iter.next(), Some(&'x'));
assert_eq!(con_iter.len(), 1);

assert_eq!(con_iter.next(), Some(&'y'));
assert_eq!(con_iter.len(), 0);
assert!(con_iter.is_empty());

assert_eq!(con_iter.next(), None);
assert_eq!(con_iter.len(), 0);
assert!(con_iter.is_empty());

Provided Methods§

Source

fn is_empty(&self) -> bool

Returns true if there are no elements left in the concurrent iterator. Returns false otherwise.

§Examples
use orx_concurrent_iter::*;

let vec = vec!['x', 'y'];

let con_iter = vec.con_iter();
assert!(!con_iter.is_empty());

assert_eq!(con_iter.next(), Some(&'x'));
assert!(!con_iter.is_empty());

assert_eq!(con_iter.next(), Some(&'y'));
assert!(con_iter.is_empty());

assert_eq!(con_iter.next(), None);
assert!(con_iter.is_empty());

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§