[Haskell-cafe] "desactivate" my Show instance implementations temporarily

Ivan Lazar Miljenovic ivan.miljenovic at gmail.com
Sun Apr 22 11:37:19 CEST 2012

On 22 April 2012 19:11, TP <paratribulations at free.fr> wrote:
> Hello,
> I have a module where I have made several types as instances of the Show
> typeclass.
> For debugging purpose, I would like to use the default implementation for Show
> (the one obtained when using "deriving", which shows all the constructors). Is
> there some option to do that, or have I to comment all the Show instances of
> my code, and add "Show" in "deriving (...)" for each of my types? If this is
> the only possibility, is there some script around here to do that
> automatically?

Is there any particular reason you're *not* using the defaults?

> Thanks in advance,
> TP
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Ivan Lazar Miljenovic
Ivan.Miljenovic at gmail.com

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