[Haskell-cafe] TemplateHaskell forces manual declaration ordering?

[Benjamin Edwards]

Good catch! Hurray for improving docs.

Ben

On Wednesday, 21 May 2014 12:37:42, Michael Alan Dorman <
mdorman at ironicdesign.com> wrote:

> "edwardsbenj at gmail.com" <edwards.benj at gmail.com> writes:
>
> > I was making the naive assumption that if OP didn't know about it then
> > it wasn't prominent. That perhaps was a little hasty. There is a
> > discussion of this very thing in the official user guide. First
> > section, 7.16.1. Syntax.
>
> I'm assuming you're referring to the subsection that begins:
>
>  * The type environment seen by reify includes all the top-level
>    declaration up to the end of the immediately preceding declaration
>    group, but no more.
>
> So I'll just note that the text you refer to---which does, as you note,
> lay out those limitations---is new with 7.8, and I was using the docs
> for the compiler version I'm using, 7.6.3.
>
> http://www.haskell.org/ghc/docs/7.6.3/html/users_guide/
> template-haskell.html
>
> Perhaps it would have made sense to consult the latest docs, but then it
> also refers to typed TH expression and other things that don't exist in
> 7.6.3. :)
>
> Mike.
>
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