On Monday 27 September 2010 18:09:08, Evan Laforge wrote:
> > data Foo a b
> > = Foo a
> > | Bar b
> > | Foobar a b
> > deriving (Eq, Ord)
> >
> > There, that looks good.
>
> There is a trap if you do a similar thing with records:
>
> data Foo = Foo
> { a :: Int
> , b :: Int
> }
>
> If you use '-- |' style haddock it can't go on 'a'. Since I tend to
> want to put '-- |' on every field, I have to put the '{' on the
> previous line.
Hm, yes. I always use '-- ^' haddock comments for record fields, so that
didn't occur to me.
>
> As for other stuff, I don't like the vertical lining up thing. It's
I haven't tried it yet. I think aligning corresponding fields has
advantages - it makes it rather obvious to see which constructor uses which
parameter types in many cases.
On the other hand, with many fields you get a very scattered picture if
some constructors only have few. That looks ugly and isn't easy to take in
at a glance.
I don't think I'll adopt it, but I plan to try it out.
> too much work to type in, causes too much realigning when the top line
> changes, sometimes causes things to get too far right,
Yep
> and breaks entirely with proportional fonts.
Not relevant for me, when looking at Haskell or Python code, I value my
fixed-width font, it just looks too weird in proportional fonts.
> A plain indent as advocated above avoids all those problems.
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