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Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

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© 2006-2015 Andrew Cooke (site) / post authors (content).

JavaGI - Type Classes in Java

From: "andrew cooke" <andrew@...>

Date: Sat, 23 Dec 2006 19:37:12 -0300 (CLST)

This is an interesting paper.  You might want to read it before my comments.


I enjoyed it largely because it helped clear my mind about the
relationship between Haskell and Java.  I walked down the road after
reading the first few pages, to buy some food from the local supermarket,
and on the way back was thinking "hmmm - it's not so much type classes, as
quantified existential types".  And, of course, then I read the section on
exactly that.  Which made me feel a bit less stupid than normal :o)

However, I don't think they have a snowball in hell's chance of getting
that accepted into a future Java release.  It's too big a change, and not
sufficiently orthogonal to what is already in the language - seems like
"implementation"s could replace classes, rather than augment them.


Blog Posts related to Java GI

From: "andrew cooke" <andrew@...>

Date: Sat, 23 Dec 2006 19:54:14 -0300 (CLST)

Forgot to include these - they make more sense after reading the paper
(and help explain it).

If dynamic typing is "strong duck typing" (I think that's good), maybe
Java interfaces could be called "static duck typing".  If that makes sense
then I guess that was what the secon dpost was trying to say and I'm
over-explaining the joke...


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