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There is a 1:1 correspondence between a generator/coroutine and an iterator with internal state. I suggest looking at the PHP generator RFC[1] and Concurrency f

• kitd 3y ago
  Indeed. The fundamental concept is "Algebraic Effects" https://stackoverflow.com/questions/49626714/what-does-algebraic-effects-mean-in-fp https://stackoverflow.com/questions/49626714/what-does-algeb...