Re: [Haskell-cafe] How to import hidden modules

Thanks Greg, It works perfectly. I have used the hidden constructors both for building values and for doing pattern matching. Best -Ricardo El 31/08/17 a las 18:17, Greg Horn escribió:

It might be possible with the http://hackage.haskell.org/package/true-name package. I've never used it but I remember the hilarious announcement https://mail.haskell.org/pipermail/haskell-cafe/2016-January/122707.html

Best, Greg

On Thu, Aug 31, 2017 at 8:07 AM Ricardo Peña mailto:ricardo@sip.ucm.es> wrote:

Hi,

I need to define a class instance for the algebraic datatype Data.Map.Map in the Hierarchical GCH libraries, but I do not find the way to import Data.Map.Internal which it is assumed to be hidden. Is there any way to access to this definition?

Thanks -Ricardo

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