cfbolz changed the topic of #pypy to: #pypy PyPy, the flexible snake | IRC logs: and | the pypy angle is to shrug and copy the implementation of CPython as closely as possible, and staying out of design decisions
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<mattip> cfbolz: I guess it would be sufficient to attach extra info to subclasses of builtin types
<mattip> I see how cpyext does it in with add_direct_pyobj_storage(), is that what you would suggest?
<cfbolz> mattip: I'm getting some coffee, then I'll take a look
<mattip> one thing I don't understand in the use of add_direct_pyobj_storage is that it is not applied to W_AbstractIntObject
<cfbolz> mattip: no, I was thinking of something else. in cpyext the default case, w_root_as_pyobj, will perform a dict lookup
<cfbolz> mattip: add_direct_pyobj_storage gets rid of the dict lookup for some classes
<cfbolz> but we only want to do that for classes where the extra word of space is not a big memory increase
<cfbolz> making every int in pypy larger for cpyext feels like the wrong tradeoff
<cfbolz> but anyway, in hpy the problem is different: we need that extra memory only for hpy-defined subclasses of types, right?
<mattip> yes
<cfbolz> ok
<mattip> and for instances
<cfbolz> right
<cfbolz> instances = subclasses of object, right?
<cfbolz> mattip: i'll try to sketch a bit of code and see how it goes, ok?
<mattip> gr8. Then maybe we can meet up later
<arigato> cffi warning: there is a pull request on github for cffi that adds a lot of CPython-specific stuff to c/ PyPy should probably drop the test in pypy/module/_cffi_backend/test/ and agree that it doesn't need to follow cffi that closely any more (it's only to accomodate new CPython versions, new platforms, etc. as opposed to new features)
<arigato> (it's what occurs right now anyway, because this "test_same_file" compares with the hg version of cffi anyway, which is now frozen)
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<cfbolz> mattip: I did a commit to maybe fix translation, hope i didn't step on your feet with that
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<mattip> arigato: thanks for the heads up