gh-114258: Update Argument Clinic for __str__.

Objects/exceptions.c

@@ -161,46 +161,40 @@ BaseException_traverse(PyObject *op, visitproc visit, void *arg)
     return 0;
 }
 
+/*[clinic input]
+@critical_section
+BaseException.__str__
+[clinic start generated code]*/
+
 static PyObject *
-BaseException_str(PyObject *op)
+BaseException_str_impl(PyBaseExceptionObject *self)
+/*[clinic end generated code: output=f9cf63c6d14a73fe input=cd946062d6786776]*/
 {
-    PyBaseExceptionObject *self = PyBaseExceptionObject_CAST(op);
-
-    PyObject *res;
-    Py_BEGIN_CRITICAL_SECTION(self);
     switch (PyTuple_GET_SIZE(self->args)) {
     case 0:
-        res = Py_GetConstant(Py_CONSTANT_EMPTY_STR);
-        break;
+        return Py_GetConstant(Py_CONSTANT_EMPTY_STR);
     case 1:
-        res = PyObject_Str(PyTuple_GET_ITEM(self->args, 0));
-        break;
+        return PyObject_Str(PyTuple_GET_ITEM(self->args, 0));
     default:
-        res = PyObject_Str(self->args);
-        break;
+        return PyObject_Str(self->args);
     }
-    Py_END_CRITICAL_SECTION();
-    return res;
 }
 
+/*[clinic input]
+@critical_section
+BaseException.__repr__
+[clinic start generated code]*/
+
 static PyObject *
-BaseException_repr(PyObject *op)
+BaseException_repr_impl(PyBaseExceptionObject *self)
+/*[clinic end generated code: output=c885549a153a6007 input=20941168ad0ab577]*/
 {
-
-    PyBaseExceptionObject *self = PyBaseExceptionObject_CAST(op);
-
-    PyObject *res;
-    Py_BEGIN_CRITICAL_SECTION(self);
     const char *name = _PyType_Name(Py_TYPE(self));
     if (PyTuple_GET_SIZE(self->args) == 1) {
-        res = PyUnicode_FromFormat("%s(%R)", name,
+        return PyUnicode_FromFormat("%s(%R)", name,
                                     PyTuple_GET_ITEM(self->args, 0));
     }
-    else {
-        res = PyUnicode_FromFormat("%s%R", name, self->args);
-    }
-    Py_END_CRITICAL_SECTION();
-    return res;
+    return PyUnicode_FromFormat("%s%R", name, self->args);
 }
 
 /* Pickling support */

Objects/frameobject.c

@@ -2121,19 +2121,20 @@ frame___sizeof___impl(PyFrameObject *self)
     return PyLong_FromSsize_t(res);
 }
 
+/*[clinic input]
+@critical_section
+frame.__repr__
+[clinic start generated code]*/
+
 static PyObject *
-frame_repr(PyObject *op)
+frame_repr_impl(PyFrameObject *self)
+/*[clinic end generated code: output=6dc361d24ba61076 input=cea0fd14e4749a55]*/
 {
-    PyFrameObject *f = PyFrameObject_CAST(op);
-    PyObject *result;
-    Py_BEGIN_CRITICAL_SECTION(f);
-    int lineno = PyFrame_GetLineNumber(f);
-    PyCodeObject *code = _PyFrame_GetCode(f->f_frame);
-    result = PyUnicode_FromFormat(
+    int lineno = PyFrame_GetLineNumber(self);
+    PyCodeObject *code = _PyFrame_GetCode(self->f_frame);
+    return PyUnicode_FromFormat(
         "<frame at %p, file %R, line %d, code %S>",
-        f, code->co_filename, lineno, code->co_name);
-    Py_END_CRITICAL_SECTION();
-    return result;
+        self, code->co_filename, lineno, code->co_name);
 }
 
 static PyMethodDef frame_methods[] = {

Tools/clinic/libclinic/dsl_parser.py

@@ -91,7 +91,6 @@
 __rtruediv__
 __rxor__
 __setattr__
-__str__
 __sub__
 __truediv__
 __xor__

Tools/clinic/libclinic/slots.py

@@ -50,4 +50,5 @@ def make_return_converter(self) -> CReturnConverter:
     '__next__': SlotSpec(return_converter='object'),
     '__repr__': SlotSpec(return_converter='object'),
     '__setitem__': SlotSpec(return_converter='int'),
+    '__str__': SlotSpec(return_converter='object'),
 }