Struct backtracking_iterator::BacktrackingRecorder

pub struct BacktrackingRecorder<Iter>where
    Iter: Iterator,{ /* private fields */ }

A wrapper around an existing iterator to give it a historical representation with the ability to then produce copying and referencing backtracking iterators on the history

Implementations

impl<Iter> BacktrackingRecorder<Iter>where
    Iter: Iterator,

pub fn new(iterator: Iter) -> Self

Create a BacktrackingRecorder from an existing iterator.

pub fn referencing<'record>(
    &'record mut self
) -> ReferencingBacktrackingIterator<'record, Iter>

pub fn copying<'record>(
    &'record mut self
) -> CopyingBacktrackingIterator<'record, Iter> where
    Iter::Item: Clone,

Trait Implementations

impl<Iter> Record for BacktrackingRecorder<Iter>where
    Iter: Iterator,

type RefPoint = usize

The type used to refer to positions in the history

fn get_ref_point(&self) -> usize

Yield a reference to the current point in the history This reference must be valid for as long as the current point remains in the history

fn forget_before(&mut self, position: usize)

Eliminate all the values before the given reference point from the history

fn forget(&mut self)

Forget all the values before the current position in the iterator