[Haskell-cafe] Template Haskell: hiding declarations
Vo Minh Thu
noteed at gmail.com
Mon Oct 4 02:52:04 EDT 2010
2010/10/4 Jonas Almström Duregård <jonas.duregard at chalmers.se>:
> Hi Café,
> I'm doing some code generation with Template Haskell that results in
> few hundred top level declaration, of which only 10 or so should
> actually be exposed to the user (the rest are only used by generated
> Since I cant splice stuff into the module header (i.e. into the export
> list), I cant think of a good way to hide the internal declarations.
> One way would be to put all the declarations into one or several
> where-clauses, but this doesn't work very well when several functions
> share the hidden declarations. Also I might want to hide a few data
> Does anyone have a clever solution? Has anyone had a similar problem
> (maybe TH needs to be extended with support for hidden declarations)?
Maybe this, although I guess this is what you mean by "doesn't work very well":
(a,b,c,d,...) = (a,b,c,d,...) -- those areyour top-level declarations
a = ...
b = ...
c = ...
d = ...
all you other code
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