[pypy-dev] do I need hlinvoke?
tismer at stackless.com
Wed Mar 29 21:07:04 CEST 2006
Armin Rigo wrote:
> Hi Christian,
> There is something wrong whenever anyone is getting close to hlinvoke()
Well, I asked him specifically, because he knows what I'm doing.
> I don't understand your problem well enough (and will let Samuele answer
> if my answer is not sufficient), but:
> On Wed, Mar 29, 2006 at 12:11:48AM -0800, Christian Tismer wrote:
>> In the real implementation, I don't have this chance,
>> because convert_from_to is an rtyper function, and I can't call
>> something high level that does it for me.
> What prevents you from writing the function you want to call as a
> low-level helper?
Because I have two code branches which both need to be rtyped.
Right now I have rtyye_wrap_object_create which creates a wrapper,
and rtype_wrap_object_fetch which grabs an existing one.
They both need rtyping. So I wrote one normal function
which calls them both, like
res = fetch_pywrapper(thing)
if res is None:
I want to call this function in the convert operation.
both helper functions need rtyping. At least I cannot see
how to express things like gencapicall from an ll function?
> Then use the regular llops.gendirectcall() to invoke
> it. Low-level helpers are not prevented to contain branches and loops.
> If the answer is that calls to special-cased functions are not handled
> correctly then this is what we should try to solve.
I don't see how this would work.
If I write a ll function, then I have no rtyper any longer.
I need to work with the repr of my instances to see if
a special field is there, and create different code.
How can I get there *after* rtyping, that is my problem.
Or can I run an ll function through rtyping as well?
thanks - chris
Christian Tismer :^) <mailto:tismer at stackless.com>
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