Lua: How to avoid Circular Requires

Question

Problem

How can I avoid the following error from Lua 5.1 when attempting to do a circular require?

$ lua main.lua 
lua: ./bar.lua:1: loop or previo         


        

Answer 1

Another way would to solve this issue would be to change the structure of the code and extract the "mutual" functionality into a third module, which both Foo and Bar would require.