[Cython] Problem with final cdef methods

[Stefan Behnel]

Hi,

I noticed two problems with final cdef methods. When overriding a normal
cdef method with a final cdef method, you currently get a C compiler
warning about a call with the wrong 'self' type, and when you call them
before you declare them in your code, you get an error because the method
is not forward declared.

http://trac.cython.org/cython_trac/ticket/819

I think this suggests that we should try to come up with a cleaner way to
integrate this feature into the function overloading architecture rather
than just remembering their cname and call that.

Stefan