There's some worrisome memory corruption here between the call to max-stack-depth
and the callee picking up its args.
All this code is incredibly ugly as I start to wrestle with the challenges
of structured editors. I keep wanting to keep business logic separate from
rendering, but there are feedback loops from wanting to know where to render
the cursor. And I haven't even started trying to avoid full-screen renders
yet. That'll complect things even more. For now the data path for every
iteration of the render loop is:
process key
compute max depth needed (or any other global information needed for rendering)
render
Kartik Agaram