Revert the change to use Argument Clinic

Author: aisk

Modules/clinic/mmapmodule.c.h

@@ -28,12 +28,6 @@
 #include "pycore_fileutils.h"     // _Py_stat_struct
 #include "pycore_weakref.h"       // FT_CLEAR_WEAKREFS()
 
-/*[clinic input]
-module mmap
-class mmap.mmap "mmap_object *" "mmap_object_type"
-[clinic start generated code]*/
-/*[clinic end generated code: output=da39a3ee5e6b4b0d input=4ebde54549b9daa7]*/
-
 #include <stddef.h>               // offsetof()
 #ifndef MS_WINDOWS
 #  include <unistd.h>             // close()
@@ -135,15 +129,6 @@ typedef struct {
 
 #define mmap_object_CAST(op)    ((mmap_object *)(op))
 
-#include "clinic/mmapmodule.c.h"
-
-static int
-mmap_object_traverse(PyObject *op, visitproc visit, void *arg)
-{
-    Py_VISIT(Py_TYPE(op));
-    return 0;
-}
-
 static void
 mmap_object_dealloc(PyObject *op)
 {
@@ -942,31 +927,19 @@ mmap_tell_method(PyObject *op, PyObject *Py_UNUSED(ignored))
     return PyLong_FromSize_t(self->pos);
 }
 
-/*[clinic input]
-mmap.mmap.flush
-
-    offset: Py_ssize_t = 0
-    size: Py_ssize_t(c_default="-1") = None
-    /
-
-Flushes changes made to the in-memory copy of a file back to disk.
-
-If offset and size are specified, only the specified range will
-be flushed. If not specified, the entire mapped region will be
-flushed.
-[clinic start generated code]*/
-
 static PyObject *
-mmap_mmap_flush_impl(mmap_object *self, Py_ssize_t offset, Py_ssize_t size)
-/*[clinic end generated code: output=956ced67466149cf input=07c2c6d4e69263a4]*/
+mmap_flush_method(PyObject *op, PyObject *args)
 {
+    Py_ssize_t offset = 0;
+    Py_ssize_t size = -1;
+    mmap_object *self = mmap_object_CAST(op);
     CHECK_VALID(NULL);
-
-    // If size is -1 (default), calculate size from offset to end.
+    if (!PyArg_ParseTuple(args, "|nn:flush", &offset, &size)) {
+        return NULL;
+    }
     if (size == -1) {
         size = self->size - offset;
     }
-
     if (size < 0 || offset < 0 || self->size - offset < size) {
         PyErr_SetString(PyExc_ValueError, "flush values out of range");
         return NULL;
@@ -1228,7 +1201,7 @@ static struct PyMethodDef mmap_object_methods[] = {
     {"close",           mmap_close_method,        METH_NOARGS},
     {"find",            mmap_find_method,         METH_VARARGS},
     {"rfind",           mmap_rfind_method,        METH_VARARGS},
-    MMAP_MMAP_FLUSH_METHODDEF
+    {"flush",           mmap_flush_method,        METH_VARARGS},
 #ifdef HAVE_MADVISE
     {"madvise",         mmap_madvise_method,      METH_VARARGS},
 #endif