brittany keeps adding parentheses to type operator in constraint #258

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2019-09-07T15:54:27+02:00

tomjaguarpaw commented

2019-09-07 15:54:27 +02:00

(Migrated from github.com)

If I start with the below program, brittany adds extra parens around (->) each time I run it.

{-# LANGUAGE TypeFamilies #-}

id :: p ~ (->) => p a a
id = Prelude.id

After running brittany several times:

{-# LANGUAGE TypeFamilies #-}

id :: p ~ ((((((((((((->)))))))))))) => p a a
id = Prelude.id

% ~/.cabal/bin/brittany --version
brittany version 0.12.0.0
Copyright (C) 2016-2018 Lennart Spitzner
There is NO WARRANTY, to the extent permitted by law.

If I start with the below program, brittany adds extra parens around `(->)` each time I run it. ```haskell {-# LANGUAGE TypeFamilies #-} id :: p ~ (->) => p a a id = Prelude.id ``` After running brittany several times: ```haskell {-# LANGUAGE TypeFamilies #-} id :: p ~ ((((((((((((->)))))))))))) => p a a id = Prelude.id ``` ``` % ~/.cabal/bin/brittany --version brittany version 0.12.0.0 Copyright (C) 2016-2018 Lennart Spitzner There is NO WARRANTY, to the extent permitted by law. ```

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Reference: hexagoxel/brittany#258