[WIP] Improve guarding of Py_DECREF, Py_XDECREF triggered from C++ dtors
#5864
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Based on manual review of: $ cd include/pybind11/ $ git grep -e Py_DECREF -e Py_XDECREF | cut -d: -f1 | uniq conduit/pybind11_conduit_v1.h detail/class.h detail/cpp_conduit.h detail/type_caster_base.h gil_safe_call_once.h numpy.h pybind11.h pytypes.h stl.h stl/filesystem.h trampoline_self_life_support.h
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Description
Currently this PR is only pin-pointing code we need to review, based on a quick manual review (
master@ commit aa4259b) of:I think we should look into the suggestions here:
Related: We should also look into our existing uses of
_Py_IsFinalizing(). I think we should (or even need to later) have anis_finalizing()helper:Suggested changelog entry: