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GeneralisedNewtypeDeriving not recognised by stylish-haskell #295

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newhoggy opened this issue Jul 28, 2020 · 2 comments
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GeneralisedNewtypeDeriving not recognised by stylish-haskell #295

newhoggy opened this issue Jul 28, 2020 · 2 comments

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@newhoggy
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newhoggy commented Jul 28, 2020 •
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The British spelling GeneralisedNewtypeDeriving is not recognised by stylish-haskell, so stylish-haskell fails to format the source file when only the British spelling is used.

Language.Haskell.Stylish.Parse.parseModule: could not parse ./cardano-config/src/Cardano/TracingOrphanInstances/Shelley.hs: ParseFailed (SrcLoc "<unknown>.hs" 159 18) "GeneralizedNewtypeDeriving language extension is not enabled. Please add {-# LANGUAGE GeneralizedNewtypeDeriving #-} pragma at the top of your module."
@newhoggy
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Work around

Add GeneralizedNewtypeDeriving to .stylish-haskell.yaml

@newhoggy newhoggy changed the title GeneralisedNewtypeDeriving crashes stylish-haskell GeneralisedNewtypeDeriving not recognised by stylish-haskell Jul 28, 2020
@newhoggy newhoggy mentioned this issue Jul 28, 2020
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@jaspervdj
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This should be fixed by #307, please reopen if it’s still happening?

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@newhoggy @jaspervdj