[Haskell-cafe] Template Haskell a Permanent solution?
lemming at henning-thielemann.de
Mon Dec 27 12:49:05 CET 2010
On Mon, 27 Dec 2010, Jonas Almström Duregård wrote:
> Hi Henning,
> > I also think that Template Haskell is used too much. Several
> > things that are done in existing libraries could be done in plain
> > Haskell in a better way.
> Can you give any examples of this? I'm not saying it's not true, I'm just curious as to why you
> would venture into the realm of TH without a reason.
E.g. refer to the recent discussion of storable-endian.
Or look into package 'encoding'. It uses TemplateHaskell in order to
convert Text descriptions of character sets into Haskell tables. I think
the character tables could be simply rewritten to Haskell syntax, or they
could be parsed by a function, where the parsed content is unfolded at
compile time. It could even be computed at runtime, since it is only
computed once because of laziness.
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