I would like to have some of the common language extensions, and what they do to... | Hacker News

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		Tyr42 on Dec 16, 2012 \| parent \| context \| favorite \| on: The Haskell Cheatsheet I would like to have some of the common language extensions, and what they do too. I can never remember the syntax for GDATs...

mikeplus48 on Dec 16, 2012 | [–]

Start with the spelling. :)

  data GADT a where
       Constructor0 :: Field a -> Field b -> GADT (a, b)
       Constructor1 :: ...
       ...

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