[pypy-dev] Findings in the Cython test suite

[Amaury Forgeot d'Arc]

2012/4/3 Maciej Fijalkowski <fijall at gmail.com>:
> I would like to point out that all the assumptions like "this type is not
> subclassable" or "this field is read only" might work on cpython, but the
> JIT will make assumptions based on that and it'll stop working or produce
> very occasional segfaults

Fortunately pypy objects are not exposed to C code, only a copy of
fields and slots;
and all transfers are explicitly written in RPython by cpyext.

But no need to invoke the JIT here; with cpyext there can be only one object
at a given address (!) and even if we had a PyCFunction_Call, it would
not receive
the correct interpreter object. This could be done of course, but with
another hack.

-- 
Amaury Forgeot d'Arc