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Can't put functions in structs or data constructors #1338

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duvenaud opened this issue Oct 8, 2023 · 0 comments
Open

Can't put functions in structs or data constructors #1338

duvenaud opened this issue Oct 8, 2023 · 0 comments

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@duvenaud
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duvenaud commented Oct 8, 2023

I'm trying to make a custom datatype that carries around a function. This used to work, but seems to have been broken by the new syntax. For example:

data SortsBy(a) =
  MkSortsBy(less_than:(a -> Bool))
Syntax error: Argument types should be in parentheses

  MkSortsBy(less_than:(a -> Bool))
                         ^^^

If this change was deliberate, then the error message is confusing.
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@duvenaud