Constraints block doesn't wrap lines

[ghc-mirror]

Original reporter: justnika@

As a result you get a doc like in the attached file[[Image(screenshot.png)]]

[gbaz]

I can't figure out what this was supposed too refer to?

[tbidne]

Possibly referring to long lists of constraints in multi-line mode? E.g.

-- | Do stuff
constraintsOhMy ::
  ( Arrow c,
    Bifunctor c,
    Bounded a,
    Category c,
    Enum a,
    Eq a,
    Exception e,
    Foldable m,
    HasCallStack,
    Monad m,
    MonadFix m,
    Monoid a,
    Ord a,
    Show a,
    Traversable m
  ) =>
  c e a ->
  m a ->
  ()
constraintsOhMy _ _ = ()

gives:

But if you add argument descriptions hence activating multi-line mode:

-- | Do stuff
constraintsOhMy ::
  ( Arrow c,
    Bifunctor c,
    Bounded a,
    Category c,
    Enum a,
    Eq a,
    Exception e,
    Foldable m,
    HasCallStack,
    Monad m,
    MonadFix m,
    Monoid a,
    Ord a,
    Show a,
    Traversable m
  ) =>
  -- | An arg
  c e a ->
  -- | Another one
  m a ->
  ()
constraintsOhMy _ _ = ()

You get:

The full list is actually there, but you either have to use the horizontal scrollbar or zoom out (this is 67% on my browser for this example):