swiftlang/swift

Separate `-dump-clang-diagnostics` into two features.

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#87,757 创建于 2026年3月9日

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 (4 评论) (0 反应) (1 负责人)Swift (69,989 star) (10,719 fork)batch import
clang importergood first issue

描述

Motivation

-dump-clang-diagnostics currently does two somewhat orthogonal things:

  1. emits ad-hoc "remarks" on things ClangImporter is doing to stderr
  2. emits clang diagnostics through both clang's and swift's diagnostic engine

Proposed solution

We should extract 1) into actual remarks, and enable them with -Rclang-importer (or whatever option https://github.com/swiftlang/swift/pull/87726 ends up adding).

Alternatives considered

-dump-clang-diagnostics may be left with just 2), or also enabling -Rclang-importer by default to keep the same behavior. I personally lean towards the former to avoid tangling orthogonal concepts, but I don't have a strong opinion.

Additional information

No response

贡献者指南

技术栈
swiftcshell
领域
backenddeveloper experiencetooling
议题类型
refactor
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。
4
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。
3-5 days
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。
blocked
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
Swift compiler internalsClangImporterDiagnostics system
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。
25
研究方向
Investigate the current implementation of ` dump clang diagnostics` in the Swift compiler (likely in `lib/ClangImporter/`). Separate the ad hoc remarks into actual remarks using ` Rclang importer` (as proposed in https://github.com/swiftlang/swift/pull/87726). Determine which part should remain under ` dump clang diagnostics` and whether to enable both by default. The issue has an assignee, so clarify with them if any work is already in progress.