Proposal: remove datatype contexts from base

Edward Kmett ekmett at
Thu May 26 14:32:41 CEST 2011

On Wed, May 25, 2011 at 3:30 AM, Simon Peyton-Jones
<simonpj at>wrote:

> I'd love to do this, but it'd mean that GHC wouldn't conform to Haskell 98
> unless we shipped two versions of the libraries, which seems overkill.
> Do you think that's acceptable? I think it probably is.  We can just record
> it as a shortcoming of GHC, but it's one that no one will care about.
> Simon

While we wouldn't comply with Haskell 98, the only difference would be that
slightly more code could type check and a number of instances for things
like Complex can be written that couldn't before. How terrible. ;)

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the Libraries mailing list