[Haskell-cafe] Is it possible to get the information of instances of a type?
olshanskydr at gmail.com
Mon Nov 7 10:26:48 CET 2011
For TH look also at
2011/10/27 Magicloud Magiclouds <magicloud.magiclouds at gmail.com>
> On Thu, Oct 27, 2011 at 1:57 AM, Brent Yorgey <byorgey at seas.upenn.edu>
> > On Wed, Oct 26, 2011 at 09:10:23PM +0400, MigMit wrote:
> >> Can't be done. Even if this particular module doesn't contain
> >> "instance Class Type", it's quite possible that the said instance
> >> would be defined in another module, about which this one knows
> >> nothing about.
> > That doesn't mean it can't be done, only that you would have to be
> > explicit about which modules to look in.
> > -Brent
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> May I know more about this? Have not used TH on this subject.
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