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A comment on Why I prefer objects over switch statements. Parent comment

Re:Why I prefer objects over switch statements by dymk on Friday February 22, 2019 @02:43PM (#19228453)
What happens when your values are computed? Or expensive to compute, and your map starts to get big? E.g.:

    {'a': foo(), 'b': bar() }[...]
If foo() or bar() ever introduce side-effects or become expensive, you're gonna have a hell of a time figuring out what's going wrong.
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Re:Why I prefer objects over switch statements by Riobe on Friday February 22, 2019 @03:58PM (#19229044)
If your values are expensive to compute like that, then you'd have the object return a function that would call foo(), bar(), and so on; and you wouldn't call them all to setup the map in the first place.
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Re:Why I prefer objects over switch statements by Izkata on Friday February 22, 2019 @05:12PM (#19229625)
This is in fact demonstrated in the second example in "Working with functions"...
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