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Ariel Plasencia Díaz
Científico de la Computación
In programming languages like Haskell this is very natural. Great job!!!!
Alberto Gonzalez
Software Developer at doWhile | Computer Scientist | ICPC World Finalist | EN | ES
Yes, it is!! The visitor pattern is useful in a lot of cases.
Compilers are a good example of a real-life product which relies on this design pattern.