On 6/21/06, Fredrik Lundh <[EMAIL PROTECTED]> wrote: > Fredrik Lundh wrote: > > >> But in most cases the 'constant' is actually an expression involving a > >> global, often even a global in another module. (E.g. sre_compile.py) > >> The compiler will have a hard time proving that this is really a > >> constant, so it won't optimize the code. > > > > unless we come up with a way to make it possible to mark an variable as > > a constant. > > such as the primary > > 'constant' expr > > which simply means that expr will be evaluated at function definition > time, rather than at runtime. example usage: > > var = expression > if var == constant sre.FOO: > ... > elif var == constant sre.BAR: > ... > elif var in constant (sre.FIE, sre.FUM): > ...
This gets pretty repetitive. One might suggest that 'case' could imply 'constant'...? -- --Guido van Rossum (home page: http://www.python.org/~guido/) _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
