[pypy-dev] Special methods
william.leslie.ttg at gmail.com
Fri Dec 4 05:36:56 CET 2009
You probably mean SomeInstance rather than SomeObject in that annotator patch.
2009/12/4 Benjamin Peterson <benjamin at python.org>:
> 2009/12/3 Hakan Ardo <hakan at debian.org>:
>> some while ago we had a discution about how to make rpython classes
>> supprt special methods. I've spent some time on that and have an
>> implementation that implemtes support for quite a few of them. It
>> consists of 4 patches and one special_methods module. Would it be of
>> interest to palce this in the svn? If not what about apply the patches
>> (with suitable modificatons)? How cnan I make that happend?
> I'm personally -1 to this change. RPython is supposed to be a
> no-frills language, and I don't really see the advantage or use cases
> for adding this extra maintenance burden.
Not only is it potentially a maintainence burden, it is also a
development burden when doing optimisations on the rtyped graphs, for
example, any optimisation that deals with setitem in some way now has
to deal with the target not being a list or dict. This is probably not
as big a deal now as it may be in the future, since a lot of new
analyses seem to be using the lltype and ootype systems rather than
the high level types (hence the type information is encoded into the
operation where useful).
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