On Sun, May 26, 2013 at 10:04 AM, Nikita Nemkin <nik...@nemkin.ru> wrote: > Hi, > > I wonder why is __pyx_filename (in exception check blocks) > tracked dynamically? AFAIK it's impossible to split function > body between multiple files (include only works at the top level), > which makes filename a compile time constant for any given function. > > If the above is correct, __pyx_filename variable can be eliminated, > saving at least 5 bytes per exception check (more on x64).
Probably because exception checks are heavy-weight enough that we haven't bothered optimizing them at this level yet. > On a related note, why is c_lineno enabled by default? So far I > have only found one pretty rare case when it is useful - debugging > autogenerated code in module init. Well, it used to be much more useful back when Cython was less mature. > I suspect that most people don't bother turning it off and get > suboptimal code. Again, raising exceptions is heavy-weight enough that I don't think this is a significant performance issue. These days we certainly could consider turning it off, because it is often irrelevant and a deviation from how exceptions look in Python. - Robert _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
