Coin Considerations (original) (raw)

Mark Mahieu markmahieu at googlemail.com
Sat Mar 14 08:05:25 PDT 2009

On 14 Mar 2009, at 14:25, Stephen Colebourne wrote:

* For-each loop for Maps, based on http://www.jroller.com/scolebourne/entry/java7foreachloops for (String str, Integer val : map) { } * Iteration control in For-Each loops, based on http://www.jroller.com/scolebourne/entry/java7foreachloop for (String str : list : it) { it.index(); it.hasNext(); it.remove(); }

I wrote versions of these with BGGA - it is surprising how useful
they can be. I guess the Java 5 foreach covered 80% of cases, but
the remaining 20% is still a very large number.

I do feel a bit uncomfortable with the idea of supporting these in
the language itself though, FWLIW.

I also thought List comprehensions might come up (not by me) - http://docs.google.com/View?docid=d4tx2hw46fkz8x6gt

I suspect that's another one which could be implemented very
differently in a language with closures.

See https://kijaro.dev.java.net/ static implements. And yes, its a great idea, but too complex for Coin.

Pity. I don't know that it's really a good idea, but it would be an
interesting one to put under the microscope.

Regards,

Mark

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