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gh-105268: Add _Py_FROM_GC() function to pycore_gc.h (#105362)

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* gcmodule.c reuses _Py_AS_GC(op) for AS_GC()
* Move gcmodule.c FROM_GC() implementation to a new _Py_FROM_GC()
  static inline function in pycore_gc.h.
* _PyObject_IS_GC(): only get the type once
* gc_is_finalized(à) and PyObject_GC_IsFinalized() use
  _PyGC_FINALIZED(), instead of _PyGCHead_FINALIZED().
* Remove _Py_CAST() in pycore_gc.h: this header file is not built
  with C++.
This commit is contained in:
Victor Stinner 2023-06-06 14:44:48 +02:00 • committed by GitHub
parent 963099ebd9
commit c7bf74bacd
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3 changed files with 27 additions and 18 deletions
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6
Include/internal/pycore_object.h
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@ -326,9 +326,9 @@ _PyObject_GET_WEAKREFS_LISTPTR_FROM_OFFSET(PyObject *op)
static inline int
_PyObject_IS_GC(PyObject *obj)
{
return (PyType_IS_GC(Py_TYPE(obj))
&& (Py_TYPE(obj)->tp_is_gc == NULL
|| Py_TYPE(obj)->tp_is_gc(obj)));
PyTypeObject *type = Py_TYPE(obj);
return (PyType_IS_GC(type)
&& (type->tp_is_gc == NULL || type->tp_is_gc(obj)));
}
// Fast inlined version of PyType_IS_GC()