lspitzner / lspitzner/brittany

bad indentation/errors for unhandled local definitions (generalization of #20)

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bug
Dominant language
Haskell
Stars
686
Forks
69
PR merge metrics
No merged PRs in 30d

Description

Any unhandled syntactical construct inserted locally (where/let) will lead to an error similar to the one in #20 if it is the first element in the layout block. This affects e.g. SPECIALIZE pragma, fixity declaration or pattern synonym type signature (see [Sig constructors](https://downloads.haskell.org/~ghc/8.0.2/docs/html/libraries/ghc-8.0.2/HsBinds.html#t:Sig); only TypeSig and InlineSig are handled currently.)

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the behavior described in issue #20 and compare handling of local where/let definitions, SPECIALIZE pragmas, fixity declarations, and pattern synonym type signatures. Review the linked HsBinds Sig constructors, especially the currently handled TypeSig and InlineSig cases; done means these constructs no longer produce bad indentation or errors when first in a layout block.

Written by the indexing model from the issue text.

Assessment

Tech stack
haskell
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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