[Python-Dev] flextype.c -- extended type system

[Christian Tismer]

Thomas Heller wrote:
>>>My additions support a subset of C++ virtual methods.
>>>How is that esoteric?
>>
>>Why would an extension writer ever want to do this? "Normal" extension
>>types either wrap some C type, so you don't have inheritance at all,
>>or some C++ type, in which case a single type method can wrap
>>arbitrary virtual methods (since the VMT is done in C++).
> 
> 
> I'm still in favor of a 'clean' method to add additional
> C accessible structure fields to types. Currently I'm
> attaching them to the the type's dict, as I reported before.
> 
> As I understand it, Christian's first patch allows this.

Please let me know when you're actually going to use
it. I know there is a bug in the 2.3 patch. For Stackless,
I'm still hacking against 2.2.1, and the patch has been
extended in serveral ways as well: I removed the assumption
that objects generated from heap types need always to
be GC objects. This was probably decided with too much
classes in mind, but now this feature also makes sense
to simple types where you might want to avoid GC for
space or other reasons.

ciao - chris

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