8000 bpo-39542: Define PyTypeObject earlier in object.h by vstinner · Pull Request #18366 · python/cpython · GitHub
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bpo-39542: Define PyTypeObject earlier in object.h #18366

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Merged
merged 1 commit into from
Feb 5, 2020
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bpo-39542: Define PyTypeObject earlier in object.h #18366

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36 changes: 16 additions & 20 deletions Include/object.h
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,9 @@ whose size is determined when the object is allocated.
#error Py_LIMITED_API is incompatible with Py_DEBUG, Py_TRACE_REFS, and Py_REF_DEBUG
#endif

/* PyTypeObject structure is defined in cpython/object.h.
In Py_LIMITED_API, PyTypeObject is an opaque structure. */
typedef struct _typeobject PyTypeObject;

#ifdef Py_TRACE_REFS
/* Define pointers to support a doubly-linked list of all live heap objects. */
Expand Down Expand Up @@ -102,7 +105,7 @@ whose size is determined when the object is allocated.
typedef struct _object {
_PyObject_HEAD_EXTRA
Py_ssize_t ob_refcnt;
struct _typeobject *ob_type;
PyTypeObject *ob_type;
} PyObject;

/* Cast argument to PyObject* type. */
Expand Down Expand Up @@ -165,15 +168,8 @@ typedef PyObject *(*iternextfunc) (PyObject *);
typedef PyObject *(*descrgetfunc) (PyObject *, PyObject *, PyObject *);
typedef int (*descrsetfunc) (PyObject *, PyObject *, PyObject *);
typedef int (*initproc)(PyObject *, PyObject *, PyObject *);
typedef PyObject *(*newfunc)(struct _typeobject *, PyObject *, PyObject *);
typedef PyObject *(*allocfunc)(struct _typeobject *, Py_ssize_t);

#ifdef Py_LIMITED_API
/* In Py_LIMITED_API, PyTypeObject is an opaque structure. */
typedef struct _typeobject PyTypeObject;
#else
/* PyTypeObject is defined in cpython/object.h */
#endif
typedef PyObject *(*newfunc)(PyTypeObject *, PyObject *, PyObject *);
typedef PyObject *(*allocfunc)(PyTypeObject *, Py_ssize_t);

typedef struct{
int slot; /* slot id, see below */
Expand All @@ -193,26 +189,26 @@ PyAPI_FUNC(PyObject*) PyType_FromSpec(PyType_Spec*);
PyAPI_FUNC(PyObject*) PyType_FromSpecWithBases(PyType_Spec*, PyObject*);
#endif
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03040000
PyAPI_FUNC(void*) PyType_GetSlot(struct _typeobject*, int);
PyAPI_FUNC(void*) PyType_GetSlot(PyTypeObject*, int);
#endif

/* Generic type check */
PyAPI_FUNC(int) PyType_IsSubtype(struct _typeobject *, struct _typeobject *);
PyAPI_FUNC(int) PyType_IsSubtype(PyTypeObject *, PyTypeObject *);
#define PyObject_TypeCheck(ob, tp) \
(Py_TYPE(ob) == (tp) || PyType_IsSubtype(Py_TYPE(ob), (tp)))

PyAPI_DATA(struct _typeobject) PyType_Type; /* built-in 'type' */
PyAPI_DATA(struct _typeobject) PyBaseObject_Type; /* built-in 'object' */
PyAPI_DATA(struct _typeobject) PySuper_Type; /* built-in 'super' */
PyAPI_DATA(PyTypeObject) PyType_Type; /* built-in 'type' */
PyAPI_DATA(PyTypeObject) PyBaseObject_Type; /* built-in 'object' */
PyAPI_DATA(PyTypeObject) PySuper_Type; /* built-in 'super' */

PyAPI_FUNC(unsigned long) PyType_GetFlags(struct _typeobject*);
PyAPI_FUNC(unsigned long) PyType_GetFlags(PyTypeObject*);

PyAPI_FUNC(int) PyType_Ready(struct _typeobject *);
PyAPI_FUNC(PyObject *) PyType_GenericAlloc(struct _typeobject *, Py_ssize_t);
PyAPI_FUNC(PyObject *) PyType_GenericNew(struct _typeobject *,
PyAPI_FUNC(int) PyType_Ready(PyTypeObject *);
PyAPI_FUNC(PyObject *) PyType_GenericAlloc(PyTypeObject *, Py_ssize_t);
PyAPI_FUNC(PyObject *) PyType_GenericNew(PyTypeObject *,
PyObject *, PyObject *);
PyAPI_FUNC(unsigned int) PyType_ClearCache(void);
PyAPI_FUNC(void) PyType_Modified(struct _typeobject *);
PyAPI_FUNC(void) PyType_Modified(PyTypeObject *);

/* Generic operations on objects */
PyAPI_FUNC(PyObject *) PyObject_Repr(PyObject *);
Expand Down
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