[pypy-dev] Cython-CEP: Native dispatch through Python callables

[Stefan Behnel]

Alex Gaynor, 13.04.2012 20:25:
> On Fri, Apr 13, 2012 at 2:18 PM, Stefan Behnel wrote:
>> wlavrijsen at lbl.gov, 13.04.2012 19:03:
>>> Integrating unpacked functions pointers with PyPy works rather elegantly
>>> through the functionality made available in rlib/libffi.py. The form of
>>> the specification matters little at that point, as long as it is
>>> complete.
>>
>> Hmm, but that's RPython, isn't it? I thought that was compiled statically?
>> How would it adapt to a signature that it finds at runtime then?
>>
>> I think this is closer to ctypes, except that you don't have to specify the
>> signature of the thing you call because PyPy will see it at call time.
> 
> rlib/libffi.py is for runtime stuff, it's the basis of both ctypes and the
> C++ wrapper.  You may be thinking of rffi.py, which is compile time.

Ah, cool. Good to know. Then it shouldn't be much work for PyPy to support
this.

Stefan