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Re: [Caml-list] static class member....
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Date: 2003-08-08 (14:38)
From: artboreb@n...
Subject: Re: [Caml-list] static class member....
wyse words
Arturo Borquez

John Max Skaller <> wrote:

>james woodyatt wrote:
>> I would strongly second this advice.  When I came to Ocaml from C++, I 
>> did not heed this advice-- and I wasted a lot of time learning why that 
>> was a mistake.
>Actaully, my advice to C++ programmers is the same :-)
>Don't use classes. Plain old data structures are generally
>better -- precisely because they *don't* provide encapsulation.
>This saves a whole lot of time writing methods, when you could
>just manipulate the data structure directly. Just kill off
>stupid Visitor patterns and things and write the code you need
>without encumbering yourself with attempts to abstract things
>that usually aren't abstract in the first place.
>In most business code, even the kinds which are in principle
>abstractable are often best not abstracted simply because
>there aren't enough instances of the abstraction to bother,
>and the client is sure to change the rules and break your
>polymorphism anyhow :-)
>An example where abstraction is useful: the back end
>of a code generator (such as Ocaml itself, or Ocamldoc),
>can sensibly be abstracted. However getting the abstraction
>just right is a non-trivial exercise and it's often better
>to do case by case encoding until the actual abstraction
>emerges in the code itself (and then you can encapsulate it).
>To put this another way -- don't use abstractions unless you
>have a strong theory that tells you what they actually are,
>and even then, be circumspect ...
>John Max Skaller,
>snail:10/1 Toxteth Rd, Glebe, NSW 2037, Australia.
>To unsubscribe, mail Archives:
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Arturo Borquez

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