milessabin/shapeless

Feature Request: toLabelledProduct

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#853 创建于 2018年8月21日

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 (10 评论) (0 反应) (0 负责人)Scala (3,405 star) (522 fork)batch import
FeatureHelp wanted

描述

Dear shapeless team,

having toProduct support for unnamed Hlist, it seems a natural request to have method like toLabelledProduct for named Hlist of records (like automatically derived by LabelledGeneric )

any plans on implementing this?

贡献者指南

技术栈
无
领域
backenddeveloper experience
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。
5
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。
over 1 week
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
Scalashapelesstype level programming
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。
15
研究方向
Start by studying the existing `toProduct` method implementation in `product.scala`. Then look at how `LabelledGeneric` is used in `labelled.scala`. Review the issue comments for any prior discussion. The method should convert a labelled HList to a product type using a similar pattern as `toProduct`. Be sure to handle potential naming conflicts and type level transformations.