ec5db539b9
This is a quick-and-dirty way to run the C++ tests. It can definitely be improved in the future, but it should fail when things go wrong. - Run test functions on import (yes, this can definitely be improved) - Fudge setuptools metadata (name & version) to make the extension installable - Install and import the extension in test_cppext
54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
# gh-91321: Build a basic C++ test extension to check that the Python C API is
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# compatible with C++ and does not emit C++ compiler warnings.
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import sys
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from test import support
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from setuptools import setup, Extension
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MS_WINDOWS = (sys.platform == 'win32')
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SOURCE = support.findfile('_testcppext.cpp')
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if not MS_WINDOWS:
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# C++ compiler flags for GCC and clang
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CPPFLAGS = [
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# gh-91321: The purpose of _testcppext extension is to check that building
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# a C++ extension using the Python C API does not emit C++ compiler
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# warnings
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'-Werror',
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# Warn on old-style cast (C cast) like: (PyObject*)op
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'-Wold-style-cast',
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]
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else:
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# Don't pass any compiler flag to MSVC
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CPPFLAGS = []
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def main():
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cppflags = list(CPPFLAGS)
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if '-std=c++03' in sys.argv:
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sys.argv.remove('-std=c++03')
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std = 'c++03'
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name = '_testcpp03ext'
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else:
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# Python currently targets C++11
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std = 'c++11'
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name = '_testcpp11ext'
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cppflags = [*CPPFLAGS, f'-std={std}']
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if std == 'c++11':
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# Warn when using NULL rather than _Py_NULL in static inline functions
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cppflags.append('-Wzero-as-null-pointer-constant')
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cpp_ext = Extension(
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name,
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sources=[SOURCE],
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language='c++',
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extra_compile_args=cppflags)
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setup(name='internal' + name, version='0.0', ext_modules=[cpp_ext])
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if __name__ == "__main__":
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main()
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