Hi all,
I'm now using existential types. I avoided learning about them because the
name sounded so highly technical and obscure it did not occur to me they
could be related to OO.
Thanks,
-John
On 12/7/06, John Ky <[EMAIL PROTECTED]> wrote:
Hi,
I've got an object model that I have a difficult time conceptualising how
it might look like in Haskell:
class Element { }
class Inline : Element { }
class ParentInline : Inline {
List<Inline> children;
}
class Bold : ParentInline { }
class Underline : ParentInline { }
class Link : ParentInline {
String link;
}
class Text : Inline {
String text;
}
class Block : Element { }
class Paragraph : Block {
List<Inline> paragraph;
}
class Heading : Block {
List<Inline> heading;
}
class Document : Element {
List<Block> blocks;
}
How best to represent this OO data model in Haskell?
Thanks
-John
_______________________________________________
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
