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"Deep coroutines:" where you can yield from a function called from the coroutine. Lua supports this, but python doesn't (as far as I can tell). Is there a term

• bvisness 3y ago
  In practice we actually do; I had to simplify for the article. We have a few utilities like a `runUntilDone` that make simple sequences easier to write. Example: https://github.com/frc-2175/2023RobotCode/blob/main/src/lua/auto/coroutines.lua#L70-L78 https://github.com/frc-2175/2023RobotCode/blob/main/src/lua/... I suppose we could make more utilities for running coroutines "in parallel", but I haven't really felt the need. At that point we usually have to worry about exit conditions and it feels natural to just write a loop.
• Jtsummers 3y ago
  For Python generators, you can yield from called functions by using yield from as in this (quick, not stellar) example: def first(): yield 1 yield from second() yield 4 def second(): yield 2 yield 3 print(list(first())) # collects all the results and prints them # Output: [1, 2, 3, 4] But yeah, it doesn't work on a direct function call you have to know it's going to return a generator (or an iterable, like if it returns a list): def something(): yield from something_else() def something_else(): return [1,2,3,4]