script loading experiments (experimental)

[pq]

(experimental)

replacing dofile with loadfile allows us to pass an env into which script globals get loaded. this experiment introduces a simple proxy env that is essentially a pass-through to _G. minimally, this proxy gives us hooks to monitor or police global access and (re)definition. taking it further we could consider expanding on this approach in the service of sandboxing #258.

anyway, this is more modest than that. as a drop-in replacement for our current dofile approach it should “just work” and gives us the opportunity to at least report un-toward re-writes of globals (see: #425).

note: i’m not proposing this land as is but rather see it as food for thought. hoping it moves the conversation along.

/cc @catfact @ngwese @tehn

[pq]

for context, here's output for running 16sliders.lua

norns.script.load("study/16sliders.lua")
# script load
# cleanup
# script clear
*** written globals:
redraw
key
init
enc
# script run

[tehn]

#436 instead