Use Hackage fixities in Fourmolu CLI mode #3454
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georgefst
commented
Jan 17, 2023
| getUnit = \case | ||
| ExposePackage _ (UnitIdArg (RealUnit (Definite (UnitId s)))) _ -> Just s | ||
| _ -> Nothing | ||
| drop' n xs = drop (n `min` (Prelude.length xs - 1)) xs |
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This is a horrible hack, but I don't have any better ideas. I wouldn't be surprised if there's no clean way to go from GHC package-id strings to Hackage library names.
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Can we somehow instead pass the actual accurate fixities that GHC computes for the file to fourmolu? It seems strange to rely on hacks when in HLS we know the actual fixities for everything as soon as a file compiles. |
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See #3421.
Could do with a test.
(EDIT: I've forgotten exactly how this relates to #3165...)
(EDIT: I'm also now confused as to why I wanted to pass
--no-cabalin the first place in #2950 (sub-EDIT ah, probably just performance). We should also look at #3449 and #3771 and see whether Ormolu has similar issues.)