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[Chicken-users] SWIG and chicken

From: John Lenz
Subject: [Chicken-users] SWIG and chicken
Date: Thu, 07 Apr 2005 01:48:19 +0000

I just completed a whole bunch of changes, improvements, and bug fixes on the chicken module in SWIG CVS. Seeing as we are planning a new SWIG release in a couple of weeks, I would appreciate people testing this and perhaps giving SWIG another look.

1) Whole bunch of documentation updates. I wrote a new section about the different ways of linking together multiple modules, and also wrote an example of how to use SWIG to build a chicken extension library (in the form of an .egg). I also updated the docs for the new features.

I stuck a copy of the updated doc on my web site

2) Exception support. For C++ functions that throw exceptions, SWIG will catch the C++ exception and then raise a scheme exception.

3) Garbage collection for wrapped classes. Classes no longer have explicit destructor functions that must be called. The destructors are registered as chicken finalizers.

4) Overloaded functions now work properly, both in the primitive case and the TinyCLOS -proxy case. (The one problem is the limitation of TinyCLOS generics, see the "tinyclos and variable argument functions" thread on this list. I wrote a few paragraphs about this and how to get around this inside the documentation).

5) %import now adds (declare (uses ...)) when running SWIG with -proxy

6) A whole bunch of bug fixes for different typemaps... the entire SWIG test-suite now passes, with the exception of the tests of std::vector<> and the like.


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