On 05/26/2011 10:43 AM, Stefan Behnel 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.
What's the status of Cython implemented utility code, BTW?
It's still bit-rotting in Kurt's branch, but it is working there. The
plans are that I set aside a couple of days in June for merging that
branch. I need to do so before Mark resumes his GSoC in July, so there's
some pressure on me to finally get it done.
Dag Sverre
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