Trait mmtk::util::rust_util::rev_group::RevisitableGroupByForIterator

pub(crate) trait RevisitableGroupByForIterator {
    type Item;
    type Iter: Iterator<Item = Self::Item> + Clone;

    // Required method
    fn revisitable_group_by<K, F>(
        self,
        get_key: F
    ) -> RevisitableGroupBy<Self::Item, K, Self::Iter, F> 
       where K: PartialEq + Copy,
             F: FnMut(&Self::Item) -> K;
}

This trait provides the revisitable_group_by method for all Iterator that also implements Clone.

Required Associated Types

type Item

type Iter: Iterator<Item = Self::Item> + Clone

Required Methods

fn revisitable_group_by<K, F>( self, get_key: F ) -> RevisitableGroupBy<Self::Item, K, Self::Iter, F>

where K: PartialEq + Copy, F: FnMut(&Self::Item) -> K,

Group adjacent items by key. get_key is a closure that computes the key.

Object Safety

This trait is not object safe.

Implementors

impl<I: Iterator + Clone> RevisitableGroupByForIterator for I

type Item = <I as Iterator>::Item

type Iter = I