I wrote:
> It would be interesting to see what a language designed specifically to
> support user-defined, pluggable, and perhaps composable, type systems
> would look like.
Since writing that I've come across some thoughts by Gilad Bracha (a Name known
to Java and Smalltalk enthusiasts alike) here:
http://blogs.sun.com/roller/page/gbracha?entry=a_few_ideas_on_type
and a long, and occasionally interesting, related thread on LtU:
http://lambda-the-ultimate.org/node/1311
Not much discussion of concrete language design, though.
-- chris
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