Struct field support

[ollien]

What would you like to see?
It would be great if the LSP could suggest struct fields for me, at least in cases where the type is glaringly obvious. For example,

def do_the_thing(%State{} = state) do
  state.<ctrl-space>
end

it would be great if at the point of ctrl-space, Dexter would suggest fields on State to me.

Why?
This would give better suggestions and avoid mistakes when looking up fields. I'm sure this is difficult to do in the general case, given this isn't compliation based, but perhaps some specific cases could be covered?

Alternatives considered
Not sure there are alternatives beyond my IDEs built in "buffer words" completions.

[JesseHerrick]

Hi @ollien! I 100% agree that this would be an awesome addition. I'm not yet sure how we could add it (probably some form of parsing the defstruct definition). The problem is that many structs are defined via macros (Ecto schemas for example) so we'd either need to add special heuristics for them (not opposed, since Ecto is obviously very common) or find another workaround. So yes, I would love to add this. I'll do some thinking on how exactly to approach it. And of course - any PRs are welcome!