GADT Type Checking GHC 6.10 versus older GHC
simonpj at microsoft.com
Fri Nov 28 03:47:03 EST 2008
| > I also feel that the type errors given when working with existential
| > types, especially GADTs with existentials, are confusing. I think
| I am using existential types to test GADT code. See
| http://www.haskell.org/haskellwiki/QuickCheck_/_GADT which no longer
| works with 6.10.1.
Really? I've just compiled that entire page with 6.10.1, and it was fine, except that I had to add a type signature for prettyRep. No problems there.
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