Lisandro Dalcin, 28.02.2011 17:33:
Bringing up this old post...
On 21 June 2010 15:41, Robert Bradshaw wrote:
On Jun 17, 2010, at 9:31 AM, Lisandro Dalcin wrote:
If we special case a __dict__ attribute in extension types, i.e:
cdef class Foo:
cdef dict __dict__
and fill type->tp_dictoffset, then we can support __dict__ in
extension types.
What do you think?
Sounds like a good idea to me. Note that we check tp_dictoffset for
fast dispatching for cpdef methods (which would be correct as a dict
lookup *would* be needed if __dict__ is available).
I still have this patch lying around in my disk. I remember Stefan had
some objections. For example, when the user ask for __dict__, a new
dict is unconditionally created (in CPython, type dict are allocated
on-demand). I propose to get this patch pushed now, and optimize
later (however, I really don't know how to safely implement this
optimization).
For reference:
http://thread.gmane.org/gmane.comp.python.cython.devel/10189
Stefan
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