swiftlang/swift

[SR-3760] zip should be a collection when both arguments are a collection

Open

#46,345 建立於 2017年1月27日

在 GitHub 查看
 (1 留言) (0 反應) (1 負責人)Swift (69,989 star) (10,719 fork)batch import
affects ABIgood first issueimprovementstandard libraryswift evolution proposal needed

描述
Previous ID SR-3760
Radar rdar://problem/20751358
Original Reporter @airspeedswift
Type Improvement
Status In Progress
Resolution
Votes 0
Component/s Standard Library
Labels Improvement, AffectsABI, StarterProposal, swift-evolution-proposal-needed
Assignee dennisvennink (JIRA)
Priority Medium

md5: d1b6f411436063fefa65b78d5d22d8a2

Issue Description:

When the two things being zipped are collections, it should be possible to return a collection from zip. If they are bi-directional/random-access collections, the zipped collection should be too.

貢獻者指南

技術棧
swift
領域
developer experienceapi
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-2 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Swift genericsSwift Collection protocolSwift evolution proposal
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
60
研究方向
Examine the current implementation of zip in the Swift standard library (likely in stdlib/public/core/). Investigate how collection conformance is currently determined and propose changes to return a Collection when both arguments are collections. Review the Swift evolution repository for any related proposals or discussions. Check the branch of the assignee dennisvennink for any in progress work. Assess the ABI impact and prepare a swift evolution proposal if needed.