rayon-rs/rayon

Add an Iterator::cycle equivalent

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#330 opened on May 1, 2017

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 (6 comments) (3 reactions) (0 assignees)Rust (9,410 stars) (450 forks)batch import
enhancementhelp wantedparity-std

Description

fn cycle(self) -> Cycle<Self> where Self: Clone { ... }

@nikomatsakis's notes from the wiki:

  • This can probably be done for indexed parallel iterator, at least, sort of like chain?
  • Have to think about it =)

Contributor guide

Tech stack
rust
Domain
backendapiperformance
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Rust trait systemRayon parallel iteratorsIterator adapter patterns
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35
Research direction
Look at existing parallel iterator adapters like Chain in Rayon's source (e.g., src/iter/chain.rs). Understand how IndexedParallelIterator is implemented. The issue mentions Clone bound and indexed parallel iterators; examine the sequential Cycle and adapt the pattern. Check comments in the issue for any additional guidance.