[Haskell-cafe] Type extensions

ajb at spamcop.net ajb at spamcop.net
Wed Jun 1 21:25:22 EDT 2005

G'day all.

Quoting Thomas Davie <tom.davie at gmail.com>:

> Essentially I would like some sort of inderritance property for
> Haskell types, I often find myself wanting to for example extend a
> tree with black/white colouring, or later extend the tree with some
> sort of ID, etc.

Have you had a look at these?


Andrew Bromage

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