Hi Stefan, On 04/22/2013 01:50 PM, Stefan Behnel wrote: > Exactly - an extremely special case. It's an inherent property of the > Cython language that user visible references are never NULL. (minus > evil C code, obviously.) Suits me. >> a good idea would be to warn if __dealloc__ actually references a >> Python attribute that tp_clear could have cleared, with a pointer to the >> class decorator that exempts the attribute/instance from tp_clear. > That's a good idea. > > Any help with this is appreciated. :) How can I help? If you want, I can attempt to create a patch and ask you if I don't make any progress. I do not have a good grip at Cython sourcecode yet, so if you can give me a head start by pointing out the locations where I can inject the new behaviour this would be most welcome. About the object graph analysis I do not know if that is easily added. I thought it might be because Cython already has some type inference in place!?
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