Use of bug in `cfor` macro · typelevel/spire#1225

(7 评论) (0 反应) (0 负责人)Scala (1,775 star) (238 fork)batch import

bughelp wanted

描述

The cfor macro accidentally generated the desired code by using a bug in beta-reduction. This bug will be patched https://github.com/lampepfl/dotty/pull/16390 and cfor will need to be updated.

See https://github.com/dotty-staging/spire/compare/7f630c0209e327bdc782ade2210d8e4b916fddcc...99ea909d086e28e85dbdf8aa78ef0a83bf873405#diff-9cd0f3a9df06a2589472aa8dc960fd2a65a2b65f2f8c257addda1c86ebc31469

贡献者指南

技术栈: scala
领域: tooling
议题类型: bug
难度: 3
预计时间: half day
活动状态: stale
清晰度: clear
前置要求: Scalamacros
新手友好度: 25
研究方向: Check the linked dotty PR (https://github.com/lampepfl/dotty/pull/16390) for the beta reduction fix. Then update the `cfor` macro in Spire to use the proper behavior without relying on the bug. Examine the diff in the linked fork (https://github.com/dotty staging/spire/compare/...) for reference.