mirror of
https://github.com/pybind/pybind11.git
synced 2026-06-29 10:57:03 +00:00
5ab036bf08
* git merge --squash purge_internals_versions_4_5
* Remove PYBIND11_HAS_INTERNALS_WITH_SMART_HOLDER_SUPPORT, set PYBIND11_INTERNALS_VERSION 7
* Remove all uses of PYBIND11_SMART_HOLDER_ENABLED under include/pybind11
* Remove obsolete PYBIND11_ACTUALLY_USING_SMART_HOLDER_AS_DEFAULT macro.
* Remove PYBIND11_SMART_HOLDER_ENABLED in ubench/holder_comparison.cpp
* Remove all uses of PYBIND11_SMART_HOLDER_ENABLED under tests/
* Remove `#define PYBIND11_SMART_HOLDER_ENABLED`
* Remove all uses of PYBIND11_SMART_HOLDER_TYPE_CASTERS under tests/
* Remove all uses of PYBIND11_TYPE_CASTER_BASE_HOLDER under tests/
* Add missing `#include <cstdint>`
Example error message (🐍 3.11 • ubuntu-latest • x64, GNU 13.3.0):
```
include/pybind11/detail/value_and_holder.h:56:52: error: ‘uint8_t’ is not a member of ‘std’; did you mean ‘wint_t’?
56 | inst->nonsimple.status[index] &= (std::uint8_t) ~instance::status_holder_constructed;
| ^~~~~~~
```
* Change PYBIND11_INTERNALS_VERSION to 106: It will be changed to 7 in a follow-on PR that actually changes the internals.
155 lines
4.1 KiB
Python
155 lines
4.1 KiB
Python
from __future__ import annotations
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import pytest
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import env # noqa: F401
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import pybind11_tests.class_sh_trampoline_shared_ptr_cpp_arg as m
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@pytest.mark.skipif("env.GRAALPY", reason="Cannot reliably trigger GC")
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def test_shared_ptr_cpp_arg():
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import weakref
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class PyChild(m.SpBase):
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def is_base_used(self):
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return False
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tester = m.SpBaseTester()
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obj = PyChild()
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objref = weakref.ref(obj)
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# Pass the last python reference to the C++ function
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tester.set_object(obj)
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del obj
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pytest.gc_collect()
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# python reference is still around since C++ has it now
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assert objref() is not None
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assert tester.is_base_used() is False
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assert tester.obj.is_base_used() is False
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assert tester.get_object() is objref()
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@pytest.mark.skipif("env.GRAALPY", reason="Cannot reliably trigger GC")
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def test_shared_ptr_cpp_prop():
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class PyChild(m.SpBase):
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def is_base_used(self):
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return False
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tester = m.SpBaseTester()
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# Set the last python reference as a property of the C++ object
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tester.obj = PyChild()
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pytest.gc_collect()
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# python reference is still around since C++ has it now
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assert tester.is_base_used() is False
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assert tester.has_python_instance() is True
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assert tester.obj.is_base_used() is False
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assert tester.obj.has_python_instance() is True
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@pytest.mark.skipif("env.GRAALPY", reason="Cannot reliably trigger GC")
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def test_shared_ptr_arg_identity():
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import weakref
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tester = m.SpBaseTester()
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obj = m.SpBase()
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objref = weakref.ref(obj)
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tester.set_object(obj)
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del obj
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pytest.gc_collect()
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# NOTE: the behavior below is DIFFERENT from PR #2839
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# python reference is gone because it is not an Alias instance
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assert objref() is None
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assert tester.has_python_instance() is False
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@pytest.mark.skipif("env.GRAALPY", reason="Cannot reliably trigger GC")
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def test_shared_ptr_alias_nonpython():
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tester = m.SpBaseTester()
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# C++ creates the object, a python instance shouldn't exist
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tester.set_nonpython_instance()
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assert tester.is_base_used() is True
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assert tester.has_instance() is True
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assert tester.has_python_instance() is False
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# Now a python instance exists
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cobj = tester.get_object()
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assert cobj.has_python_instance()
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assert tester.has_instance() is True
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assert tester.has_python_instance() is True
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# Now it's gone
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del cobj
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pytest.gc_collect()
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assert tester.has_instance() is True
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assert tester.has_python_instance() is False
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# When we pass it as an arg to a new tester the python instance should
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# disappear because it wasn't created with an alias
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new_tester = m.SpBaseTester()
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cobj = tester.get_object()
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assert cobj.has_python_instance()
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new_tester.set_object(cobj)
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assert tester.has_python_instance() is True
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assert new_tester.has_python_instance() is True
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del cobj
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pytest.gc_collect()
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# Gone!
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assert tester.has_instance() is True
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assert tester.has_python_instance() is False
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assert new_tester.has_instance() is True
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assert new_tester.has_python_instance() is False
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@pytest.mark.skipif("env.GRAALPY", reason="Cannot reliably trigger GC")
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def test_shared_ptr_goaway():
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import weakref
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tester = m.SpGoAwayTester()
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obj = m.SpGoAway()
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objref = weakref.ref(obj)
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assert tester.obj is None
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tester.obj = obj
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del obj
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pytest.gc_collect()
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# python reference is no longer around
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assert objref() is None
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# C++ reference is still around
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assert tester.obj is not None
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def test_infinite():
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tester = m.SpBaseTester()
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while True:
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tester.set_object(m.SpBase())
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break # Comment out for manual leak checking (use `top` command).
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@pytest.mark.parametrize(
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"pass_through_func", [m.pass_through_shd_ptr, m.pass_through_shd_ptr_release_gil]
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)
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def test_std_make_shared_factory(pass_through_func):
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class PyChild(m.SpBase):
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def __init__(self):
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super().__init__(0)
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obj = PyChild()
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while True:
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assert pass_through_func(obj) is obj
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break # Comment out for manual leak checking (use `top` command).
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