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authorVictor Stinner <vstinner@python.org>2022-01-27 02:00:55 (GMT)
committerGitHub <noreply@github.com>2022-01-27 02:00:55 (GMT)
commitaf32b3ef1fbad3c2242627a14398320960a0cb45 (patch)
tree350016f513e2ebbdae51ee1e033f668dc2d3f609 /Include
parentf0a648152f2d8011f47cc49873438ebaf01d3f82 (diff)
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bpo-40170: PyType_SUPPORTS_WEAKREFS() becomes a regular function (GH-30938)
Convert the PyType_SUPPORTS_WEAKREFS() macro to a regular function. It no longer access the PyTypeObject.tp_weaklistoffset member directly. Add _PyType_SUPPORTS_WEAKREFS() static inline functions, used internally by Python for best performance.
Diffstat (limited to 'Include')
-rw-r--r--Include/cpython/objimpl.h4
-rw-r--r--Include/internal/pycore_object.h5
2 files changed, 7 insertions, 2 deletions
diff --git a/Include/cpython/objimpl.h b/Include/cpython/objimpl.h
index 4a905c2..7fff96e 100644
--- a/Include/cpython/objimpl.h
+++ b/Include/cpython/objimpl.h
@@ -91,7 +91,7 @@ PyAPI_FUNC(int) PyObject_IS_GC(PyObject *obj);
#endif
-/* Test if a type supports weak references */
-#define PyType_SUPPORTS_WEAKREFS(t) ((t)->tp_weaklistoffset > 0)
+// Test if a type supports weak references
+PyAPI_FUNC(int) PyType_SUPPORTS_WEAKREFS(PyTypeObject *type);
PyAPI_FUNC(PyObject **) PyObject_GET_WEAKREFS_LISTPTR(PyObject *op);
diff --git a/Include/internal/pycore_object.h b/Include/internal/pycore_object.h
index be308cd..5fe4ddb 100644
--- a/Include/internal/pycore_object.h
+++ b/Include/internal/pycore_object.h
@@ -200,6 +200,11 @@ extern int _Py_CheckSlotResult(
// See also the Py_TPFLAGS_READY flag.
#define _PyType_IsReady(type) ((type)->tp_dict != NULL)
+// Test if a type supports weak references
+static inline int _PyType_SUPPORTS_WEAKREFS(PyTypeObject *type) {
+ return (type->tp_weaklistoffset > 0);
+}
+
extern PyObject* _PyType_AllocNoTrack(PyTypeObject *type, Py_ssize_t nitems);
extern int _PyObject_InitializeDict(PyObject *obj);