You might be interested in Oleg&#39;s paper <a href="http://homepages.cwi.nl/%7Eralf/OOHaskell/code.html">Haskell&#39;s Overlooked Object System</a>, although programming in an object-oriented style is neither elegant nor idiomatic Haskell. Aside from the actual embedding of an object-oriented language inside Haskell, the main benefit of the paper is the opening survey of approaches to object-oriented style programming in Haskell. Not surprisingly, however, encapsulation and subtyping are the most difficult concepts from object-oriented languages to capture with Haskell type classes and algebraic data types. <br>
<br><div class="gmail_quote">On Tue, Dec 14, 2010 at 7:25 PM, C K Kashyap <span dir="ltr">&lt;<a href="mailto:ckkashyap@gmail.com">ckkashyap@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Thanks Antoine,<br>
<div class="im"><br>
&gt; Is there a particular problem you&#39;re trying to solve? we might be able<br>
&gt; to take the conversation in a less speculative direction.<br>
&gt;<br>
</div>At this point its academic ... I have programmed in OOPS for a long<br>
time so, I just wanted to understand how one would go around something<br>
like that in Haskell.<br>
<br>
I came across something called the expression problem and it talks<br>
about &quot;open data type&quot; - is this the solution?<br>
<br>
Regards,<br>
<font color="#888888">Kashyap<br>
</font><div><div></div><div class="h5"><br>
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