[pypy-dev] do I need hlinvoke?

[Christian Tismer]

Hi Samuele,

with your help, I can now handle my extra fields in arbitrary
instances very well. One problem remains:
(see test_wrapping)
The support function is no longer a simple thing, but it
contains a decision, so I need two blocks.

In test_wrapper, I solved this by making wrap_obj a high level
function, which first tries fetch_pywrapper and then create_pywrapper.
This works fine.

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.

Q: Do I need hlinvoke for this, or is there a better way?

thanks & cheers - chris
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