You don't need to derive ToSElem -- you get the instance for free if you derive Data. Import GenericWithClass to get the instance for Data from syb-with-class, and import GenericStandard for use with Data from the vanilla syb that comes with GHC.
Cheers, Sterl. 2009/3/23 Kemps-Benedix Torsten <torsten.kemps-bene...@sks-ub.de>: > Hello all, > > > > I’m trying to use the generic capabilities of HSTringTemplate. The > documentation claims that the package is able to automatically generate > instances of ToSElem if syb-with-class is installed but gives no further > details. I installed syb-with-class and then installed HSTringTemplate with > additional configure parameter syb-with-class=True. But when I import > Text.StringTemplate.GenericWithClass and then try deriving ToSElem or > $(derive ToSElem), I just get an error like “Can't make a derived instance > of `ToSElem …”. > > > > Any suggestions or pointer to further docs? > > > > Kind regards > > > > Torsten > > > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > > _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
