Missing type arguments in recursive types

[jhrcek]

After fixing the build error reported in

I encountered the following code generation bug

data Tree a
  = Leaf
  | Node { nodeValue :: a, nodeChildren :: [Tree a] }
  deriving (Generic, ToHType)

-- in separate module
src :: Text
src = $(generateFor Elm0p19 defaultOptions "Repro" Nothing $
    include (Proxy :: Proxy (Tree Int)) $ Everything Poly)

the following elm code is generated:

type Tree a = Leaf | Node { nodeValue : a, nodeChildren : List Tree } 

but this is rejected by compiler (missing type argument - should be nodeChildren : List (Tree a)).

Detected problems in 1 module.
-- TOO FEW ARGS ----------------------------------------------- Parametrized.elm

The `Tree` type needs 1 argument, but I see 0 instead:

61| type Tree a = Leaf | Node { nodeValue : a, nodeChildren : List Tree } 
                                                                   ^^^^
What is missing? Are some parentheses misplaced?