Add (<$$>) to Functor. #20509
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Add (<$$>) to Functor. #20509
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yangzai
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paulbrauner-da
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Jan 8, 2025
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/azp run |
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Azure Pipelines successfully started running 1 pipeline(s). |
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This breaks the platform independence tests. Would you mind running and committing the resulting changes? |
auto-merge was automatically disabled
January 8, 2025 14:30
Head branch was pushed to by a user without write access
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/azp run |
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Azure Pipelines successfully started running 1 pipeline(s). |
Fixed. |
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Useful for manipulating
Optionals or lists nested inUpdate/Scriptwe often get from the query/fetch/lookup functions (in the absence of functor composition or monad transformers).In general, it would still be useful for all effectful functions in the Kleisli form. Sometimes
(<=<)is an over kill, and it wouldn't even work for non-monadic applicatives likeCommandsandValidation.The fixity follows the version from https://hackage.haskell.org/package/composition-extra-2.1.0/docs/Data-Functor-Syntax.html .