[pypy-dev] Basic math ops

Timothy Baldridge tbaldridge at gmail.com
Tue Mar 8 17:12:51 CET 2011

In my interpreter, I have several primitive wrapper objects:
IntObject, FloatObject, etc.

Currently I'm planning to create functions for every combination:

def add_int_float(i, f):
     return FloatObject(i.int_value() + f.float_value())

then I'd need some sort of dispatch code that would say

if isinstance(arg1, IntObject) and isinstance(arg2, FloatObject):
    return add_int_float(arg1, arg2)

It seems like pypy should have something to do this already. I saw
some information on this but that seemed specific to the Python

What's the recommended procedure on this? Is there a way to tell pypy
"this object wraps a single value, so keep it unwrapped if you can",
or does pypy figure that out automagically?



“One of the main causes of the fall of the Roman Empire was
that–lacking zero–they had no way to indicate successful termination
of their C programs.”
(Robert Firth)

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