pybind11/tests/test_union.py

from __future__ import annotations

from pybind11_tests import union_ as m


def test_union():
    instance = m.TestUnion()

    instance.as_uint = 10
    assert instance.as_int == 10
feat: remove Python 3.6 support (#5177) * Change Python version guard: PYTHON < 3.7 IS UNSUPPORTED. * Replace or remove Python 3.6 jobs. * Move appveyor to Python 3.8 * Change `[tool.pylint]` `master.py-version` from `3.6` to `3.8` * Change `[tool.pylint]` `master.py-version` to `3.7` * Remove `centos:7` job; Change almalinux:8 job to use Python 3.8 * Try 🐍 3.8 • ubuntu-20.04 • x64 without `-DCMAKE_CXX_FLAGS="-D_=1"` * Update setup.cfg as suggested by @henryiii * Try running `cmake --build . --target cpptest` on all platforms (`standard` job). * Disable deadsnakes jobs entirely. * Apply PR #5179: Add Python 3.10, 3.11, 3.12 to win32 job matrix. * Add back `-DCMAKE_CXX_FLAGS="-D_=1"` but do not install boost in that case. * PY_VERSION_HEX < 3.7 cleanup pass: include/pybind11 * WITH_THREAD cleanup pass: include/pybind11 * Undo incorrect change. * Revert "Disable deadsnakes jobs entirely." This reverts commit bbcd0087b2d52e0130f96792dd5dd03704280a57. * WITH_THREAD cleanup pass: tests/ * Change Python version guard in pybind11/__init__.py: pybind11 does not support Python < 3.7. * Misc cleanup pass * chore: use future imports Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com> * Update tests/test_numpy_array.py * Update test_numpy_array.py --------- Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com> Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com> 2024-06-22 04:55:00 +00:00			`from __future__ import annotations`

Fix assertion failure for unions (#1685) (#1709) In def_readonly and def_readwrite, there is an assertion that the member comes from the class or a base class: static_assert(std::is_base_of<C, type>::value, "..."); However, if C and type are the same type, is_base_of will still only be true if they are the same _non-union_ type. This means we can't define accessors for the members of a union type because of this assertion. Update the assertion to test std::is_same<C, type>::value \|\| std::is_base_of<C, type>::value which will allow union types, or members of base classes. Also add a basic unit test for accessing unions. 2019-06-11 20:25:12 +00:00			`from pybind11_tests import union_ as m`


			`def test_union():`
			`instance = m.TestUnion()`

			`instance.as_uint = 10`
			`assert instance.as_int == 10`