bpo-40989: PyObject_INIT() becomes an alias to PyObject_Init() (GH-20901)

The PyObject_INIT() and PyObject_INIT_VAR() macros become aliases to,
respectively, PyObject_Init() and PyObject_InitVar() functions.

Rename _PyObject_INIT() and _PyObject_INIT_VAR() static inline
functions to, respectively, _PyObject_Init() and _PyObject_InitVar(),
and move them to pycore_object.h. Remove their return value:
their return type becomes void.

The _datetime module is now built with the Py_BUILD_CORE_MODULE macro
defined.

Remove an outdated comment on _Py_tracemalloc_config.

1 files changed, 9 insertions, 7 deletions

diff --git a/Objects/object.c b/Objects/object.c
index 0ab5de2..4481fc9 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -139,23 +139,23 @@ Py_DecRef(PyObject *o)
 PyObject *
 PyObject_Init(PyObject *op, PyTypeObject *tp)
 {
-    /* Any changes should be reflected in PyObject_INIT() macro */
     if (op == NULL) {
         return PyErr_NoMemory();
     }
 
-    return PyObject_INIT(op, tp);
+    _PyObject_Init(op, tp);
+    return op;
 }
 
 PyVarObject *
 PyObject_InitVar(PyVarObject *op, PyTypeObject *tp, Py_ssize_t size)
 {
-    /* Any changes should be reflected in PyObject_INIT_VAR() macro */
     if (op == NULL) {
         return (PyVarObject *) PyErr_NoMemory();
     }
 
-    return PyObject_INIT_VAR(op, tp, size);
+    _PyObject_InitVar(op, tp, size);
+    return op;
 }
 
 PyObject *
@@ -165,7 +165,7 @@ _PyObject_New(PyTypeObject *tp)
     if (op == NULL) {
         return PyErr_NoMemory();
     }
-    PyObject_INIT(op, tp);
+    _PyObject_Init(op, tp);
     return op;
 }
 
@@ -175,9 +175,11 @@ _PyObject_NewVar(PyTypeObject *tp, Py_ssize_t nitems)
     PyVarObject *op;
     const size_t size = _PyObject_VAR_SIZE(tp, nitems);
     op = (PyVarObject *) PyObject_MALLOC(size);
-    if (op == NULL)
+    if (op == NULL) {
         return (PyVarObject *)PyErr_NoMemory();
-    return PyObject_INIT_VAR(op, tp, nitems);
+    }
+    _PyObject_InitVar(op, tp, nitems);
+    return op;
 }
 
 void