[Haskell-cafe] Lenses: Should I declare Getters?
charlieap at gmail.com
Tue Sep 10 07:31:38 CEST 2013
I've been looking through Edward Kmett's lens library, and I'm a bit
befuddled about Getters. In my own code, why would I want to have something
be a Getter instead of a plain function? As far as I can see, a plain
function is simpler to use, and can be converted to a Getter with "to" if
we want to use it as a Fold. Is there a situation where writing a Getter is
superior than writing a function, then lifting it as needed?
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