On Thu, May 26, 2011 at 1:43 AM, Stefan Behnel <stefan...@behnel.de> wrote: > Dag Sverre Seljebotn, 26.05.2011 10:24: >> >> On 05/26/2011 10:12 AM, Stefan Behnel wrote: >>> >>> Robert Bradshaw, 26.05.2011 09:40: >>>> >>>> the pattern of swapping out builtin methods (and perhaps >>>> functions) with more optimized C versions is something that perhaps it >>>> would be good to be able to do more generally, rather than hard coding >>>> the list into Optimize.py. >>> >>> Right. All that would really be needed is a way to define default values >>> for arguments of builtin methods. Then most of the method optimisations >>> could be moved into Builtin.py. >> >> BTW, the idea of the overlay stuff Robert referred to was that we could >> add >> syntax to pxd files so that the "unicode" type and its alternative method >> implementations could be fleshed out in a pxd file (and the same with >> other >> standard library or third-party types that are not written with Cython >> support in mind, but may have a C API that we want to dispatch to instead >> of their Python API). > > Well, dispatching to existing C-API functions is easy and can be done in > Builtin.py. Moving that to .pxd files or not is a minor detail. The > problems, as in this case, are that we often need to implement our own C-API > and that we need to match defaulted arguments to suitable default values. I > guess this could be done with inline methods, once we have something like > overlay types in .pxd files.
Yes, I was thinking that many of these could be implemented in Cython. We sometimes do tricky stuff with #defines though, but usually on the Python version which could possibly be supported somehow (?). At least, as we move away from the low-level ones and start expanding, implementing them in Cython makes more and more sense. > What's the status of Cython implemented utility code, BTW? > > Stefan > _______________________________________________ > cython-devel mailing list > cython-devel@python.org > http://mail.python.org/mailman/listinfo/cython-devel > _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel