[Haskell-cafe] Data.Typeable TypeRep Ord instance.

[John Meacham]

On Sat, Dec 4, 2010 at 2:08 PM, Serguey Zefirov <sergueyz at gmail.com> wrote:
> Why TypeRep does have equality and doesn't have ordering?
>
> It would be good to have that.

Yes, I have wanted that too. It would make maps from types to values
possible/efficient. There is a very critical path in jhc that use
type-indexed data structures that I have to implement a very hacky
workaround for no Ord instance for TypeRep

    John