PEP 3123: Provide forward compatibility with Python 3.0, while keeping

backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.


git-svn-id: http://svn.python.org/projects/python/trunk@56476 6015fed2-1504-0410-9fe1-9d1591cc4771

Author: martin.v.loewis

Include/abstract.h

@@ -1064,7 +1064,7 @@ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx*/
        */
 
 #define PySequence_ITEM(o, i)\
-	( o->ob_type->tp_as_sequence->sq_item(o, i) )
+	( Py_Type(o)->tp_as_sequence->sq_item(o, i) )
        /* Assume tp_as_sequence and sq_item exist and that i does not
 	  need to be corrected for a negative index
        */     

Include/boolobject.h

@@ -11,7 +11,7 @@ typedef PyIntObject PyBoolObject;
 
 PyAPI_DATA(PyTypeObject) PyBool_Type;
 
-#define PyBool_Check(x) ((x)->ob_type == &PyBool_Type)
+#define PyBool_Check(x) (Py_Type(x) == &PyBool_Type)
 
 /* Py_False and Py_True are the only two bools in existence.
 Don't forget to apply Py_INCREF() when returning either!!! */

Include/bufferobject.h

@@ -12,7 +12,7 @@ extern "C" {
 
 PyAPI_DATA(PyTypeObject) PyBuffer_Type;
 
-#define PyBuffer_Check(op) ((op)->ob_type == &PyBuffer_Type)
+#define PyBuffer_Check(op) (Py_Type(op) == &PyBuffer_Type)
 
 #define Py_END_OF_BUFFER	(-1)
 

Include/cStringIO.h

@@ -60,9 +60,9 @@ static struct PycStringIO_CAPI {
 
 /* These can be used to test if you have one */
 #define PycStringIO_InputCheck(O) \
-  ((O)->ob_type==PycStringIO->InputType)
+  (Py_Type(O)==PycStringIO->InputType)
 #define PycStringIO_OutputCheck(O) \
-  ((O)->ob_type==PycStringIO->OutputType)
+  (Py_Type(O)==PycStringIO->OutputType)
 
 #ifdef __cplusplus
 }

Include/cellobject.h

@@ -13,7 +13,7 @@ typedef struct {
 
 PyAPI_DATA(PyTypeObject) PyCell_Type;
 
-#define PyCell_Check(op) ((op)->ob_type == &PyCell_Type)
+#define PyCell_Check(op) (Py_Type(op) == &PyCell_Type)
 
 PyAPI_FUNC(PyObject *) PyCell_New(PyObject *);
 PyAPI_FUNC(PyObject *) PyCell_Get(PyObject *);

Include/cobject.h

@@ -16,7 +16,7 @@ extern "C" {
 
 PyAPI_DATA(PyTypeObject) PyCObject_Type;
 
-#define PyCObject_Check(op) ((op)->ob_type == &PyCObject_Type)
+#define PyCObject_Check(op) (Py_Type(op) == &PyCObject_Type)
 
 /* Create a PyCObject from a pointer to a C object and an optional
    destructor function.  If the second argument is non-null, then it

Include/code.h

@@ -60,7 +60,7 @@ typedef struct {
 
 PyAPI_DATA(PyTypeObject) PyCode_Type;
 
-#define PyCode_Check(op) ((op)->ob_type == &PyCode_Type)
+#define PyCode_Check(op) (Py_Type(op) == &PyCode_Type)
 #define PyCode_GetNumFree(op) (PyTuple_GET_SIZE((op)->co_freevars))
 
 /* Public interface */
@@ -72,7 +72,7 @@ PyAPI_FUNC(int) PyCode_Addr2Line(PyCodeObject *, int);
 
 /* for internal use only */
 #define _PyCode_GETCODEPTR(co, pp) \
-	((*(co)->co_code->ob_type->tp_as_buffer->bf_getreadbuffer) \
+	((*Py_Type((co)->co_code)->tp_as_buffer->bf_getreadbuffer) \
 	 ((co)->co_code, 0, (void **)(pp)))
 
 typedef struct _addr_pair {

Include/complexobject.h

@@ -43,7 +43,7 @@ typedef struct {
 PyAPI_DATA(PyTypeObject) PyComplex_Type;
 
 #define PyComplex_Check(op) PyObject_TypeCheck(op, &PyComplex_Type)
-#define PyComplex_CheckExact(op) ((op)->ob_type == &PyComplex_Type)
+#define PyComplex_CheckExact(op) (Py_Type(op) == &PyComplex_Type)
 
 PyAPI_FUNC(PyObject *) PyComplex_FromCComplex(Py_complex);
 PyAPI_FUNC(PyObject *) PyComplex_FromDoubles(double real, double imag);

Include/datetime.h

@@ -166,19 +166,19 @@ typedef struct {
 
 /* Macros for type checking when building the Python core. */
 #define PyDate_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateType)
-#define PyDate_CheckExact(op) ((op)->ob_type == &PyDateTime_DateType)
+#define PyDate_CheckExact(op) (Py_Type(op) == &PyDateTime_DateType)
 
 #define PyDateTime_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateTimeType)
-#define PyDateTime_CheckExact(op) ((op)->ob_type == &PyDateTime_DateTimeType)
+#define PyDateTime_CheckExact(op) (Py_Type(op) == &PyDateTime_DateTimeType)
 
 #define PyTime_Check(op) PyObject_TypeCheck(op, &PyDateTime_TimeType)
-#define PyTime_CheckExact(op) ((op)->ob_type == &PyDateTime_TimeType)
+#define PyTime_CheckExact(op) (Py_Type(op) == &PyDateTime_TimeType)
 
 #define PyDelta_Check(op) PyObject_TypeCheck(op, &PyDateTime_DeltaType)
-#define PyDelta_CheckExact(op) ((op)->ob_type == &PyDateTime_DeltaType)
+#define PyDelta_CheckExact(op) (Py_Type(op) == &PyDateTime_DeltaType)
 
 #define PyTZInfo_Check(op) PyObject_TypeCheck(op, &PyDateTime_TZInfoType)
-#define PyTZInfo_CheckExact(op) ((op)->ob_type == &PyDateTime_TZInfoType)
+#define PyTZInfo_CheckExact(op) (Py_Type(op) == &PyDateTime_TZInfoType)
 
 #else
 
@@ -198,19 +198,19 @@ static PyDateTime_CAPI *PyDateTimeAPI;
 
 /* Macros for type checking when not building the Python core. */
 #define PyDate_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DateType)
-#define PyDate_CheckExact(op) ((op)->ob_type == PyDateTimeAPI->DateType)
+#define PyDate_CheckExact(op) (Py_Type(op) == PyDateTimeAPI->DateType)
 
 #define PyDateTime_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DateTimeType)
-#define PyDateTime_CheckExact(op) ((op)->ob_type == PyDateTimeAPI->DateTimeType)
+#define PyDateTime_CheckExact(op) (Py_Type(op) == PyDateTimeAPI->DateTimeType)
 
 #define PyTime_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->TimeType)
-#define PyTime_CheckExact(op) ((op)->ob_type == PyDateTimeAPI->TimeType)
+#define PyTime_CheckExact(op) (Py_Type(op) == PyDateTimeAPI->TimeType)
 
 #define PyDelta_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->DeltaType)
-#define PyDelta_CheckExact(op) ((op)->ob_type == PyDateTimeAPI->DeltaType)
+#define PyDelta_CheckExact(op) (Py_Type(op) == PyDateTimeAPI->DeltaType)
 
 #define PyTZInfo_Check(op) PyObject_TypeCheck(op, PyDateTimeAPI->TZInfoType)
-#define PyTZInfo_CheckExact(op) ((op)->ob_type == PyDateTimeAPI->TZInfoType)
+#define PyTZInfo_CheckExact(op) (Py_Type(op) == PyDateTimeAPI->TZInfoType)
 
 /* Macros for accessing constructors in a simplified fashion. */
 #define PyDate_FromDate(year, month, day) \

Include/descrobject.h

@@ -77,7 +77,7 @@ PyAPI_FUNC(PyObject *) PyDescr_NewGetSet(PyTypeObject *,
 					       struct PyGetSetDef *);
 PyAPI_FUNC(PyObject *) PyDescr_NewWrapper(PyTypeObject *,
 						struct wrapperbase *, void *);
-#define PyDescr_IsData(d) ((d)->ob_type->tp_descr_set != NULL)
+#define PyDescr_IsData(d) (Py_Type(d)->tp_descr_set != NULL)
 
 PyAPI_FUNC(PyObject *) PyDictProxy_New(PyObject *);
 PyAPI_FUNC(PyObject *) PyWrapper_New(PyObject *, PyObject *);