mirror of https://github.com/python/cpython
bpo-43795: PEP-652: Simplify headers for easier static analysis (GH-25483)
As part of the PEP-652 implementation, I'll tighten the CI check for functions/data defined with `Py_LIMITED_API`. Discussion in https://discuss.python.org/t/pep-652-maintaining-the-stable-abi/6986 suggests that parsing C headers is OK (though personally I'd rather generate it...), but writing a full C parser is a monumental task and adding an existing one as a dependency brings too many vendoring/bootstraping issues. So, for the check I'll use a "simple" regex on preprocessor output, and adapt the few trivial places where the regex won't work. - Keep declarations in the limited API to one item per line - Make it possible to override `_Py_NO_RETURN`, so the annotation can be removed from preprocessor output. https://bugs.python.org/issue43795
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@ -15,7 +15,8 @@ PyAPI_DATA(PyTypeObject) PyBool_Type;
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Don't forget to apply Py_INCREF() when returning either!!! */
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/* Don't use these directly */
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PyAPI_DATA(struct _longobject) _Py_FalseStruct, _Py_TrueStruct;
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PyAPI_DATA(struct _longobject) _Py_FalseStruct;
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PyAPI_DATA(struct _longobject) _Py_TrueStruct;
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/* Use these macros */
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#define Py_False ((PyObject *) &_Py_FalseStruct)
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@ -861,6 +861,7 @@ extern _invalid_parameter_handler _Py_silent_invalid_parameter_handler;
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PyAPI_FUNC(void) _Py_NO_RETURN PyThread_exit_thread(void);
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XLC support is intentionally omitted due to bpo-40244 */
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#ifndef _Py_NO_RETURN
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#if defined(__clang__) || \
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(defined(__GNUC__) && \
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((__GNUC__ >= 3) || \
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@ -871,6 +872,7 @@ extern _invalid_parameter_handler _Py_silent_invalid_parameter_handler;
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#else
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# define _Py_NO_RETURN
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#endif
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#endif
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// Preprocessor check for a builtin preprocessor function. Always return 0
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