swiftlang/swift
GitHub で見るWe should have a tool that finds unused diagnostic IDs
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#67,306 opened on 2023年7月14日
QoIcompilerdevelopment toolsfeaturegood first issueutils
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説明
While working on #67075, I found several stale diagnostics that are declared in Diagnostics*.def files, but are never used anywhere in the compiler. I deleted most of the ones I found, but I’m sure there are many more.
We should have a tool that scans lib/ and include/ for uses of diagnostic IDs and flags any that are never actually used. This could perhaps be a test that would fail if there are unused diagnostics.
This might be a good first issue for a new contributor who has reasonably strong Python or Swift skills but doesn’t have any experience with compilers yet.