bpo-33029: Fix signatures of getter and setter functions. (GH-10746)

Fix also return type for few other functions (clear, releasebuffer).
(cherry picked from commit d4f9cf5545d6d8844e0726552ef2e366f5cc3abd)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

7 files changed, 56 insertions, 51 deletions

diff --git a/Objects/cellobject.c b/Objects/cellobject.c
index 7b05e61ce4..6f8915ac92 100644
--- a/Objects/cellobject.c
+++ b/Objects/cellobject.c
@@ -111,7 +111,7 @@ cell_get_contents(PyCellObject *op, void *closure)
 }
 
 static int
-cell_set_contents(PyCellObject *op, PyObject *obj)
+cell_set_contents(PyCellObject *op, PyObject *obj, void *Py_UNUSED(ignored))
 {
     Py_XINCREF(obj);
     Py_XSETREF(op->ob_ref, obj);
diff --git a/Objects/descrobject.c b/Objects/descrobject.c
index 6014039402..c6f7e55ea5 100644
--- a/Objects/descrobject.c
+++ b/Objects/descrobject.c
@@ -439,7 +439,7 @@ calculate_qualname(PyDescrObject *descr)
 }
 
 static PyObject *
-descr_get_qualname(PyDescrObject *descr)
+descr_get_qualname(PyDescrObject *descr, void *Py_UNUSED(ignored))
 {
     if (descr->d_qualname == NULL)
         descr->d_qualname = calculate_qualname(descr);
@@ -1108,7 +1108,7 @@ static PyMemberDef wrapper_members[] = {
 };
 
 static PyObject *
-wrapper_objclass(wrapperobject *wp)
+wrapper_objclass(wrapperobject *wp, void *Py_UNUSED(ignored))
 {
     PyObject *c = (PyObject *)PyDescr_TYPE(wp->descr);
 
@@ -1117,7 +1117,7 @@ wrapper_objclass(wrapperobject *wp)
 }
 
 static PyObject *
-wrapper_name(wrapperobject *wp)
+wrapper_name(wrapperobject *wp, void *Py_UNUSED(ignored))
 {
     const char *s = wp->descr->d_base->name;
 
@@ -1125,21 +1125,21 @@ wrapper_name(wrapperobject *wp)
 }
 
 static PyObject *
-wrapper_doc(wrapperobject *wp, void *closure)
+wrapper_doc(wrapperobject *wp, void *Py_UNUSED(ignored))
 {
     return _PyType_GetDocFromInternalDoc(wp->descr->d_base->name, wp->descr->d_base->doc);
 }
 
 static PyObject *
-wrapper_text_signature(wrapperobject *wp, void *closure)
+wrapper_text_signature(wrapperobject *wp, void *Py_UNUSED(ignored))
 {
     return _PyType_GetTextSignatureFromInternalDoc(wp->descr->d_base->name, wp->descr->d_base->doc);
 }
 
 static PyObject *
-wrapper_qualname(wrapperobject *wp)
+wrapper_qualname(wrapperobject *wp, void *Py_UNUSED(ignored))
 {
-    return descr_get_qualname((PyDescrObject *)wp->descr);
+    return descr_get_qualname((PyDescrObject *)wp->descr, NULL);
 }
 
 static PyGetSetDef wrapper_getsets[] = {
diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index 2cce40f884..03bdf79de3 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -181,7 +181,7 @@ static PyMethodDef BaseException_methods[] = {
 };
 
 static PyObject *
-BaseException_get_args(PyBaseExceptionObject *self)
+BaseException_get_args(PyBaseExceptionObject *self, void *Py_UNUSED(ignored))
 {
     if (self->args == NULL) {
         Py_RETURN_NONE;
@@ -191,7 +191,7 @@ BaseException_get_args(PyBaseExceptionObject *self)
 }
 
 static int
-BaseException_set_args(PyBaseExceptionObject *self, PyObject *val)
+BaseException_set_args(PyBaseExceptionObject *self, PyObject *val, void *Py_UNUSED(ignored))
 {
     PyObject *seq;
     if (val == NULL) {
@@ -206,7 +206,7 @@ BaseException_set_args(PyBaseExceptionObject *self, PyObject *val)
 }
 
 static PyObject *
-BaseException_get_tb(PyBaseExceptionObject *self)
+BaseException_get_tb(PyBaseExceptionObject *self, void *Py_UNUSED(ignored))
 {
     if (self->traceback == NULL) {
         Py_RETURN_NONE;
@@ -216,7 +216,7 @@ BaseException_get_tb(PyBaseExceptionObject *self)
 }
 
 static int
-BaseException_set_tb(PyBaseExceptionObject *self, PyObject *tb)
+BaseException_set_tb(PyBaseExceptionObject *self, PyObject *tb, void *Py_UNUSED(ignored))
 {
     if (tb == NULL) {
         PyErr_SetString(PyExc_TypeError, "__traceback__ may not be deleted");
@@ -234,7 +234,8 @@ BaseException_set_tb(PyBaseExceptionObject *self, PyObject *tb)
 }
 
 static PyObject *
-BaseException_get_context(PyObject *self) {
+BaseException_get_context(PyObject *self, void *Py_UNUSED(ignored))
+{
     PyObject *res = PyException_GetContext(self);
     if (res)
         return res;  /* new reference already returned above */
@@ -242,7 +243,8 @@ BaseException_get_context(PyObject *self) {
 }
 
 static int
-BaseException_set_context(PyObject *self, PyObject *arg) {
+BaseException_set_context(PyObject *self, PyObject *arg, void *Py_UNUSED(ignored))
+{
     if (arg == NULL) {
         PyErr_SetString(PyExc_TypeError, "__context__ may not be deleted");
         return -1;
@@ -261,7 +263,8 @@ BaseException_set_context(PyObject *self, PyObject *arg) {
 }
 
 static PyObject *
-BaseException_get_cause(PyObject *self) {
+BaseException_get_cause(PyObject *self, void *Py_UNUSED(ignored))
+{
     PyObject *res = PyException_GetCause(self);
     if (res)
         return res;  /* new reference already returned above */
@@ -269,7 +272,8 @@ BaseException_get_cause(PyObject *self) {
 }
 
 static int
-BaseException_set_cause(PyObject *self, PyObject *arg) {
+BaseException_set_cause(PyObject *self, PyObject *arg, void *Py_UNUSED(ignored))
+{
     if (arg == NULL) {
         PyErr_SetString(PyExc_TypeError, "__cause__ may not be deleted");
         return -1;
@@ -292,10 +296,10 @@ static PyGetSetDef BaseException_getset[] = {
     {"__dict__", PyObject_GenericGetDict, PyObject_GenericSetDict},
     {"args", (getter)BaseException_get_args, (setter)BaseException_set_args},
     {"__traceback__", (getter)BaseException_get_tb, (setter)BaseException_set_tb},
-    {"__context__", (getter)BaseException_get_context,
-     (setter)BaseException_set_context, PyDoc_STR("exception context")},
-    {"__cause__", (getter)BaseException_get_cause,
-     (setter)BaseException_set_cause, PyDoc_STR("exception cause")},
+    {"__context__", BaseException_get_context,
+     BaseException_set_context, PyDoc_STR("exception context")},
+    {"__cause__", BaseException_get_cause,
+     BaseException_set_cause, PyDoc_STR("exception cause")},
     {NULL},
 };
 
@@ -310,7 +314,7 @@ PyException_GetTraceback(PyObject *self) {
 
 int
 PyException_SetTraceback(PyObject *self, PyObject *tb) {
-    return BaseException_set_tb((PyBaseExceptionObject *)self, tb);
+    return BaseException_set_tb((PyBaseExceptionObject *)self, tb, NULL);
 }
 
 PyObject *
diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index f518dc4856..4ef10d0eb7 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -64,7 +64,7 @@ frame_getlineno(PyFrameObject *f, void *closure)
  *    that time.
  */
 static int
-frame_setlineno(PyFrameObject *f, PyObject* p_new_lineno)
+frame_setlineno(PyFrameObject *f, PyObject* p_new_lineno, void *Py_UNUSED(ignored))
 {
     int new_lineno = 0;                 /* The new value of f_lineno */
     long l_new_lineno;
@@ -519,7 +519,7 @@ frame_traverse(PyFrameObject *f, visitproc visit, void *arg)
     return 0;
 }
 
-static void
+static int
 frame_tp_clear(PyFrameObject *f)
 {
     PyObject **fastlocals, **p, **oldtop;
@@ -547,6 +547,7 @@ frame_tp_clear(PyFrameObject *f)
         for (p = f->f_valuestack; p < oldtop; p++)
             Py_CLEAR(*p);
     }
+    return 0;
 }
 
 static PyObject *
@@ -561,7 +562,7 @@ frame_clear(PyFrameObject *f)
         _PyGen_Finalize(f->f_gen);
         assert(f->f_gen == NULL);
     }
-    frame_tp_clear(f);
+    (void)frame_tp_clear(f);
     Py_RETURN_NONE;
 }
 
diff --git a/Objects/funcobject.c b/Objects/funcobject.c
index 241685d5b7..413a590f17 100644
--- a/Objects/funcobject.c
+++ b/Objects/funcobject.c
@@ -242,14 +242,14 @@ static PyMemberDef func_memberlist[] = {
 };
 
 static PyObject *
-func_get_code(PyFunctionObject *op)
+func_get_code(PyFunctionObject *op, void *Py_UNUSED(ignored))
 {
     Py_INCREF(op->func_code);
     return op->func_code;
 }
 
 static int
-func_set_code(PyFunctionObject *op, PyObject *value)
+func_set_code(PyFunctionObject *op, PyObject *value, void *Py_UNUSED(ignored))
 {
     Py_ssize_t nfree, nclosure;
 
@@ -277,14 +277,14 @@ func_set_code(PyFunctionObject *op, PyObject *value)
 }
 
 static PyObject *
-func_get_name(PyFunctionObject *op)
+func_get_name(PyFunctionObject *op, void *Py_UNUSED(ignored))
 {
     Py_INCREF(op->func_name);
     return op->func_name;
 }
 
 static int
-func_set_name(PyFunctionObject *op, PyObject *value)
+func_set_name(PyFunctionObject *op, PyObject *value, void *Py_UNUSED(ignored))
 {
     /* Not legal to del f.func_name or to set it to anything
      * other than a string object. */
@@ -299,14 +299,14 @@ func_set_name(PyFunctionObject *op, PyObject *value)
 }
 
 static PyObject *
-func_get_qualname(PyFunctionObject *op)
+func_get_qualname(PyFunctionObject *op, void *Py_UNUSED(ignored))
 {
     Py_INCREF(op->func_qualname);
     return op->func_qualname;
 }
 
 static int
-func_set_qualname(PyFunctionObject *op, PyObject *value)
+func_set_qualname(PyFunctionObject *op, PyObject *value, void *Py_UNUSED(ignored))
 {
     /* Not legal to del f.__qualname__ or to set it to anything
      * other than a string object. */
@@ -321,7 +321,7 @@ func_set_qualname(PyFunctionObject *op, PyObject *value)
 }
 
 static PyObject *
-func_get_defaults(PyFunctionObject *op)
+func_get_defaults(PyFunctionObject *op, void *Py_UNUSED(ignored))
 {
     if (op->func_defaults == NULL) {
         Py_RETURN_NONE;
@@ -331,7 +331,7 @@ func_get_defaults(PyFunctionObject *op)
 }
 
 static int
-func_set_defaults(PyFunctionObject *op, PyObject *value)
+func_set_defaults(PyFunctionObject *op, PyObject *value, void *Py_UNUSED(ignored))
 {
     /* Legal to del f.func_defaults.
      * Can only set func_defaults to NULL or a tuple. */
@@ -348,7 +348,7 @@ func_set_defaults(PyFunctionObject *op, PyObject *value)
 }
 
 static PyObject *
-func_get_kwdefaults(PyFunctionObject *op)
+func_get_kwdefaults(PyFunctionObject *op, void *Py_UNUSED(ignored))
 {
     if (op->func_kwdefaults == NULL) {
         Py_RETURN_NONE;
@@ -358,7 +358,7 @@ func_get_kwdefaults(PyFunctionObject *op)
 }
 
 static int
-func_set_kwdefaults(PyFunctionObject *op, PyObject *value)
+func_set_kwdefaults(PyFunctionObject *op, PyObject *value, void *Py_UNUSED(ignored))
 {
     if (value == Py_None)
         value = NULL;
@@ -375,7 +375,7 @@ func_set_kwdefaults(PyFunctionObject *op, PyObject *value)
 }
 
 static PyObject *
-func_get_annotations(PyFunctionObject *op)
+func_get_annotations(PyFunctionObject *op, void *Py_UNUSED(ignored))
 {
     if (op->func_annotations == NULL) {
         op->func_annotations = PyDict_New();
@@ -387,7 +387,7 @@ func_get_annotations(PyFunctionObject *op)
 }
 
 static int
-func_set_annotations(PyFunctionObject *op, PyObject *value)
+func_set_annotations(PyFunctionObject *op, PyObject *value, void *Py_UNUSED(ignored))
 {
     if (value == Py_None)
         value = NULL;
diff --git a/Objects/genobject.c b/Objects/genobject.c
index 793a809b84..b0e877072c 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -644,14 +644,14 @@ gen_repr(PyGenObject *gen)
 }
 
 static PyObject *
-gen_get_name(PyGenObject *op)
+gen_get_name(PyGenObject *op, void *Py_UNUSED(ignored))
 {
     Py_INCREF(op->gi_name);
     return op->gi_name;
 }
 
 static int
-gen_set_name(PyGenObject *op, PyObject *value)
+gen_set_name(PyGenObject *op, PyObject *value, void *Py_UNUSED(ignored))
 {
     /* Not legal to del gen.gi_name or to set it to anything
      * other than a string object. */
@@ -666,14 +666,14 @@ gen_set_name(PyGenObject *op, PyObject *value)
 }
 
 static PyObject *
-gen_get_qualname(PyGenObject *op)
+gen_get_qualname(PyGenObject *op, void *Py_UNUSED(ignored))
 {
     Py_INCREF(op->gi_qualname);
     return op->gi_qualname;
 }
 
 static int
-gen_set_qualname(PyGenObject *op, PyObject *value)
+gen_set_qualname(PyGenObject *op, PyObject *value, void *Py_UNUSED(ignored))
 {
     /* Not legal to del gen.__qualname__ or to set it to anything
      * other than a string object. */
@@ -688,7 +688,7 @@ gen_set_qualname(PyGenObject *op, PyObject *value)
 }
 
 static PyObject *
-gen_getyieldfrom(PyGenObject *gen)
+gen_getyieldfrom(PyGenObject *gen, void *Py_UNUSED(ignored))
 {
     PyObject *yf = _PyGen_yf(gen);
     if (yf == NULL)
@@ -927,7 +927,7 @@ coro_await(PyCoroObject *coro)
 }
 
 static PyObject *
-coro_get_cr_await(PyCoroObject *coro)
+coro_get_cr_await(PyCoroObject *coro, void *Py_UNUSED(ignored))
 {
     PyObject *yf = _PyGen_yf((PyGenObject *) coro);
     if (yf == NULL)
diff --git a/Objects/memoryobject.c b/Objects/memoryobject.c
index ccf45ffc58..ce8fa3f270 100644
--- a/Objects/memoryobject.c
+++ b/Objects/memoryobject.c
@@ -2905,7 +2905,7 @@ _IntTupleFromSsizet(int len, Py_ssize_t *vals)
 }
 
 static PyObject *
-memory_obj_get(PyMemoryViewObject *self)
+memory_obj_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     Py_buffer *view = &self->view;
 
@@ -2918,56 +2918,56 @@ memory_obj_get(PyMemoryViewObject *self)
 }
 
 static PyObject *
-memory_nbytes_get(PyMemoryViewObject *self)
+memory_nbytes_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     CHECK_RELEASED(self);
     return PyLong_FromSsize_t(self->view.len);
 }
 
 static PyObject *
-memory_format_get(PyMemoryViewObject *self)
+memory_format_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     CHECK_RELEASED(self);
     return PyUnicode_FromString(self->view.format);
 }
 
 static PyObject *
-memory_itemsize_get(PyMemoryViewObject *self)
+memory_itemsize_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     CHECK_RELEASED(self);
     return PyLong_FromSsize_t(self->view.itemsize);
 }
 
 static PyObject *
-memory_shape_get(PyMemoryViewObject *self)
+memory_shape_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     CHECK_RELEASED(self);
     return _IntTupleFromSsizet(self->view.ndim, self->view.shape);
 }
 
 static PyObject *
-memory_strides_get(PyMemoryViewObject *self)
+memory_strides_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     CHECK_RELEASED(self);
     return _IntTupleFromSsizet(self->view.ndim, self->view.strides);
 }
 
 static PyObject *
-memory_suboffsets_get(PyMemoryViewObject *self)
+memory_suboffsets_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     CHECK_RELEASED(self);
     return _IntTupleFromSsizet(self->view.ndim, self->view.suboffsets);
 }
 
 static PyObject *
-memory_readonly_get(PyMemoryViewObject *self)
+memory_readonly_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     CHECK_RELEASED(self);
     return PyBool_FromLong(self->view.readonly);
 }
 
 static PyObject *
-memory_ndim_get(PyMemoryViewObject *self)
+memory_ndim_get(PyMemoryViewObject *self, void *Py_UNUSED(ignored))
 {
     CHECK_RELEASED(self);
     return PyLong_FromLong(self->view.ndim);