Programming

Definitely (being young and recency bias) all the weird stuff happening in the lua engine in the old ComputerCraft versions (1.45ish and 1.75) I'm playing.

I'm not really testing rigorously enough, but it seems to have been in 1.45, which i stopped playing because of other reasons (turtle api too primitive), making a function a() return a function b() that captures one of a's local variables, made it crash.

now on 1.75 it doesn't do that anymore, but now I pass some functions through the output of a coroutine, and they just sometimes turn into nil when I call them the second time. it literally throws "attempt to call nil on line 245" when line 245 is like:

242 if func == nil then
243  -- something else
244 else
245   resA, resB = func()
246 end

I even printed func before calling it, and it told me it was a function, except earlier, where it told me it was nil. Now I'm going to stop using coroutines and hope the architecture of my program changes enough so the bug goes away.

I'm playing the Direwolf20 season 7 minecraft modpack btw