swiftlang/swift

[SR-6867] "Chunking" split

Open

#49,416 创建于 2018年1月29日

在 GitHub 查看
 (1 评论) (0 反应) (0 负责人)Swift (69,989 star) (10,719 fork)batch import
featuregood first issuestandard libraryswift evolution proposal needed

描述
Previous ID SR-6867
Radar None
Original Reporter @airspeedswift
Type New Feature
Votes 0
Component/s Standard Library
Labels New Feature, StarterProposal
Assignee None
Priority Medium

md5: d78e8d70fcb68ef04d5d9fac882fce1f

Issue Description:

It is possible to split a collection per element, but not by a count i.e. split an array into subsequences of length 3, or more generally any collection into subsequence of length n. There should be a ability to do this lazily for collections and eagerly for sequences.

贡献者指南

技术栈
swift
领域
backend
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Understanding of Swift genericsFamiliarity with Sequence and Collection protocolsKnowledge of lazy sequences
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
40
研究方向
The issue requests adding a chunking method to split collections into subsequences of a given length. The implementation should consider both eager and lazy variants. Relevant files include the standard library's Collection.swift and Sequence.swift in the swift repository. Examine existing split methods for patterns. The discussion in the issue (comment from 2018) suggests exploring lazy collection conformance. The proposal is labeled as 'StarterProposal', indicating it is suitable for newcomers with guidance. No linked PRs exist.