[Haskell-cafe] Base classes can be _ELIMINATED_ with interfaces
shelby at coolpage.com
Thu Nov 5 07:10:06 EST 2009
> Shelby Moore wrote:
>> In Haskel, subtyping is done with Module...
> data is analogous to a public class members. Use Module to make some
> implementation private:
> Thus use type classes (interfaces) when consuming the public Module
> interfaces in functions (i.e. only consume the exported Module interfaces
> in the sense they implement a type class, never directly consume the
> Module name space).
A strong argument against hiding internal functionality of an ADT (against
using Module), and favoring fully composable functional programming (i.e
Haskell without Module) for GUIs:
http://lambda-the-ultimate.org/node/3668#comment-51993 (concise and sweet)
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