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Support QualifiedDo for GHC>=9.0.1#11

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rinse wants to merge 4 commits intoreinerp:masterfrom
rinse:qualifieddo
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Support QualifiedDo for GHC>=9.0.1#11
rinse wants to merge 4 commits intoreinerp:masterfrom
rinse:qualifieddo

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@rinse rinse commented Jan 3, 2025

Support for -XQualifiedDo has been added in GHC versions >= 9.0.1.

The new module Control.Monad/Indexed/QualifiedDo provides the following functions:

  • >>=, >>, and fail for monadic operations.
  • fmap, <*>, and join to ensure compatibility with -XApplicativeDo.
  • mfix and return to ensure compatibility with -XRecursiveDo.

Additionally, a new typeclass, IxMonadFail, has been introduced in Control/Monad/Indexed/Fail to support fail.

The naming of the functions is based on the documentation:
https://ghc.gitlab.haskell.org/ghc/doc/users_guide/exts/qualified_do.html

I left the maintainer field blank but I’m ready to fill it with a specific name. Please inform me of the name you would like to use.

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