Re:Haskell: OOP vs type classes
by ufo on Tuesday December 20, 2011 @12:50PM
(#3374342)
I would say the closest OO analog to ADTs is the Visitor pattern: You first fix the number of classes and then implement the different functions (visitors)
This is in contrast with the normal OO polymorphism/method where you first define set of methods and then implement the different classes.
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Type classes are more of a thing of their own. The template comparison is apt and I have heard Type Classes are supposedly very similar to the "Concepts" proposal that did not get in C++0x.
This is in contrast with the normal OO polymorphism/method where you first define set of methods and then implement the different classes.
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Type classes are more of a thing of their own. The template comparison is apt and I have heard Type Classes are supposedly very similar to the "Concepts" proposal that did not get in C++0x.