Type Signatures on New Line

[ruhatch]

I have some type signatures laid out as

function
  :: Type1
  -> Type2
function = undefined

and the highlighting here seems to be incorrect. The function name is not highlighted as usual, and the third line (-> Type2) is not coloured correctly.

[lierdakil]

Atom's grammar model limitation. See #57, #81, #89, #101, and probably a few others. I will keep this open to increase visibility, since these reports get extremely redundant after a while.

[lierdakil]

Relevant: https://github.com/lspitzner/brittany/issues/94

[lierdakil]

Actually, I managed to come up with a reasonably effective band-aid (finally?). Not a solution, not by any stretch, but should help with the most common case.

It basically works by asserting that Haskell statements can't start with :: operator, hence successive lines having the same indentation level as :: have to be part of a signature.

So this works (somewhat, identifier isn't highlighted as a signature declaration):

this still doesn't, but such formatting is rather rare, I reckon:

Best results are still achieved with something like this: