co-routines.paws

first ↼ {
  a.variable ↼ “one”
  
  foo ↼ second ()
  print (“Foo: ”, foo)
  
  bar ↼ second ()
  print (“Bar: ”, bar)
  
  print (“`first`’s callers: ”, callers length ())
}

second ↼ {
  number ↼ callers length ()
  callers 1 (number)
  
  number ↼ multiply(callers length (), 2)
  callers 2 (number)
}

first ()