Hello everybody,
I just found out a neat way to do simple multimethods in Python, so I thought I'd share it with you :-)
Hoohooo, is that! neat.
The following is only for dispatching over two arguments. The idea is to use a pair(a,b) object that is just like a tuple (a,b), but with methods. Any (regular Python) method that you put in the class of pair(a,b) works like a multimethod dispatching on both a and b. The metaclass hack is only a syntactic convenience.
I don't know if this is relevant to PyPy. It's probably one of the shortest multimethod implementations for Python, whereas PyPy's is probably one of the longest :-)
I like the idea very much! Can we adopt this for pypy? Highly elegant. Also it appears to be quite efficient.
ciao - chris
-- Christian Tismer :^) <mailto:[EMAIL PROTECTED]> Mission Impossible 5oftware : Have a break! Take a ride on Python's Johannes-Niemeyer-Weg 9a : *Starship* http://starship.python.net/ 14109 Berlin : PGP key -> http://wwwkeys.pgp.net/ work +49 30 89 09 53 34 home +49 30 802 86 56 mobile +49 173 24 18 776 PGP 0x57F3BF04 9064 F4E1 D754 C2FF 1619 305B C09C 5A3B 57F3 BF04 whom do you want to sponsor today? http://www.stackless.com/
_______________________________________________ [EMAIL PROTECTED] http://codespeak.net/mailman/listinfo/pypy-dev
