bpo-39573: Convert Py_TYPE() and Py_SIZE() back to macros (GH-23366)

This change partically reverts
commit ad3252bad9
and the commit fe2978b3b9.

Many third party C extension modules rely on the ability of using
Py_TYPE() to set an object type: "Py_TYPE(obj) = type;" or to set an
object type using: "Py_SIZE(obj) = size;".
This commit is contained in:
Victor Stinner 2020-11-18 18:48:06 +01:00 committed by GitHub
parent 2156d964a1
commit 0e2ac21dd4
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5 changed files with 35 additions and 26 deletions

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@ -128,16 +128,11 @@ static inline Py_ssize_t _Py_REFCNT(const PyObject *ob) {
#define Py_REFCNT(ob) _Py_REFCNT(_PyObject_CAST_CONST(ob))
static inline Py_ssize_t _Py_SIZE(const PyVarObject *ob) {
return ob->ob_size;
}
#define Py_SIZE(ob) _Py_SIZE(_PyVarObject_CAST_CONST(ob))
// bpo-39573: The Py_SET_TYPE() function must be used to set an object type.
#define Py_TYPE(ob) (_PyObject_CAST(ob)->ob_type)
static inline PyTypeObject* _Py_TYPE(const PyObject *ob) {
return ob->ob_type;
}
#define Py_TYPE(ob) _Py_TYPE(_PyObject_CAST_CONST(ob))
// bpo-39573: The Py_SET_SIZE() function must be used to set an object size.
#define Py_SIZE(ob) (_PyVarObject_CAST(ob)->ob_size)
static inline int _Py_IS_TYPE(const PyObject *ob, const PyTypeObject *type) {