Struct core_extensions::iterators::IterCloner

pub struct IterCloner<'a, I: 'a>(pub &'a I);

Available on crate feature iterators only.

Implements IntoIterator::into_iter by cloning the iterator it references.

You can also use the iter_cloner macro to construct this,

Example

use core_extensions::iterators::IterCloner;

let list = vec!["hello", "awesome", "world"];

let iter = list.iter().map(|v|v.len()).filter(|&v| v<6 );

let iter_clone = IterCloner(&iter);
    
for _ in 0..2{
    assert_eq!(iter_clone.into_iter().collect::<Vec<_>>(), vec![5, 5]);
}

Tuple Fields

0: &'a I

Trait Implementations

impl<'a, I> Clone for IterCloner<'a, I>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, I: Debug + 'a> Debug for IterCloner<'a, I>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, I: 'a> IntoIterator for IterCloner<'a, I> where
    I: Iterator + Clone, 

type Item = <I as Iterator>::Item

The type of the elements being iterated over.

type IntoIter = I

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<'a, I> Copy for IterCloner<'a, I>