[Haskell-cafe] Re: is there any reason why Language.C.Syntax.AST.CTranslUnit doesn't derive show?

[José Pedro Magalhães]

Hello Anatoly,

Bear in mind that gshow behaves a bit differently from the regular show
(namely regarding parenthesis and efficiency). You can also use standalone
deriving [1] to derive Show for those datatypes.


Cheers,
Pedro

[1]
http://www.haskell.org/ghc/docs/latest/html/users_guide/deriving.html#stand-alone-deriving

On Sat, Mar 28, 2009 at 02:07, Anatoly Yakovenko <aeyakovenko at gmail.com>wrote:

> ah, i am guessing its because you can use Data.Generics.gshow to do
> the same thing.  Seems like that library will come in handy when
> manipulating the AST, pretty cool stuff.
>
> On Fri, Mar 27, 2009 at 5:53 PM, Anatoly Yakovenko
> <aeyakovenko at gmail.com> wrote:
> > is there any reason why Language.C.Syntax.AST.CTranslUnit doesn't
> > derive show?  I would like to look at the data structure it generates.
> >  It's a lot easier to experiment it when i can write a template C
> > file, print out the AST and then modify that data structure directly,
> > instead of trying to grok the library.
> >
> > Thanks for your great work btw, the parser is pretty sweet.
> > Anatoly
> >
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