[Haskell-cafe] Haddock: Documentation of instances with un-documentable type arguments

[Alexander McPhail]

Hi

Is there a similar ticket for GHC to not export instances in the case that
other instances are explicitly specified?

module Foo (
                   Foo(Monad)
                  )

instance Monad Foo where ...
instance MonadState (Foo Bar) where ...

i.e. the monad instance gets exported but the MonadState one does not?  This
helps in maintaining opacity with respect to the package user.  I may not
want the user to be able to call 'get' and 'put' when using my custom monad.

Cheers,

Vivian

On 26 August 2010 02:20, David Waern <david.waern at gmail.com> wrote:

> 2010/8/25 Alexander McPhail <haskell.vivian.mcphail at gmail.com>:
>
> > Perhaps Haddock could exclude class instance reporting when it cannot
> find a
> > documentable link to a parameter?
>
> Yes, it should. BTW, we have a trac ticket for it:
>
>  http://trac.haskell.org/haddock/ticket/37
>
> You can add yourself to the CC list to show that you want this feature.
>
> Currently we don't have many people working on these types of tickets
> in Haddock (I'm mostly fixing bugs, others are working on bigger
> improvements), so if more people would volunteer to help out, that'd
> be great. The mailing list haddock at projects.haskell.org can be used to
> ask for directions and help.
>
> David
>



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