[Haskell-beginners] What's wrong with Haddock?!

Baa aquagnu at gmail.com
Thu Oct 26 11:58:43 UTC 2017


@Francesco:

I tried it (added extension InstanceSigs, added "^.."-style docstring),
nothing changed. So, may be docstrings in instances are impossible at
whole? May be it makes sense... May be they should be documented in its
classes instead?

> On Thu, Oct 26, 2017 at 02:11:10PM +0300, Baa wrote:
> > @Francesco Ariis:
> > 
> >   instance Conversion UTCTime where
> >     aspS a = round $ 1E12 * utcTimeToPOSIXSeconds a -- ^as time
> > period from 1970-1-1 frompS a = posixSecondsToUTCTime $ fromInteger
> > $ (round $ d/1E12) -- ^from time period from 1970-1-1 where d =
> > fromInteger a :: Double  
> 
> -- ^ is meant to be put after a function *declaration* iirc. Try to
> add signatures to your instance as
> 
>     instance Foo Bar where
>         fa :: Int -> a    -- ^ some comment
>         fa x = undefined
>         fb :: String -> a    -- ^ some more comment
>         fb x = undefined
> 
> and let us know if it fixed the problem.
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