mirror of
https://github.com/python/cpython.git
synced 2025-11-04 03:44:55 +00:00
9f2e346911
svn+ssh://pythondev@svn.python.org/python/branches/p3yk
................
r56477 | martin.v.loewis | 2007-07-21 09:04:38 +0200 (Sa, 21 Jul 2007) | 11 lines
Merged revisions 56466-56476 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r56476 | martin.v.loewis | 2007-07-21 08:55:02 +0200 (Sa, 21 Jul 2007) | 4 lines
PEP 3123: Provide forward compatibility with Python 3.0, while keeping
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
........
................
r56478 | martin.v.loewis | 2007-07-21 09:47:23 +0200 (Sa, 21 Jul 2007) | 2 lines
PEP 3123: Use proper C inheritance for PyObject.
................
r56479 | martin.v.loewis | 2007-07-21 10:06:55 +0200 (Sa, 21 Jul 2007) | 3 lines
Add longintrepr.h to Python.h, so that the compiler can
see that PyFalse is really some kind of PyObject*.
................
r56480 | martin.v.loewis | 2007-07-21 10:47:18 +0200 (Sa, 21 Jul 2007) | 2 lines
Qualify SHIFT, MASK, BASE.
................
r56482 | martin.v.loewis | 2007-07-21 19:10:57 +0200 (Sa, 21 Jul 2007) | 2 lines
Correctly refer to _ob_next.
................
120 lines
2.4 KiB
C
120 lines
2.4 KiB
C
/* Cell object implementation */
|
|
|
|
#include "Python.h"
|
|
|
|
PyObject *
|
|
PyCell_New(PyObject *obj)
|
|
{
|
|
PyCellObject *op;
|
|
|
|
op = (PyCellObject *)PyObject_GC_New(PyCellObject, &PyCell_Type);
|
|
if (op == NULL)
|
|
return NULL;
|
|
op->ob_ref = obj;
|
|
Py_XINCREF(obj);
|
|
|
|
_PyObject_GC_TRACK(op);
|
|
return (PyObject *)op;
|
|
}
|
|
|
|
PyObject *
|
|
PyCell_Get(PyObject *op)
|
|
{
|
|
if (!PyCell_Check(op)) {
|
|
PyErr_BadInternalCall();
|
|
return NULL;
|
|
}
|
|
Py_XINCREF(((PyCellObject*)op)->ob_ref);
|
|
return PyCell_GET(op);
|
|
}
|
|
|
|
int
|
|
PyCell_Set(PyObject *op, PyObject *obj)
|
|
{
|
|
if (!PyCell_Check(op)) {
|
|
PyErr_BadInternalCall();
|
|
return -1;
|
|
}
|
|
Py_XDECREF(((PyCellObject*)op)->ob_ref);
|
|
Py_XINCREF(obj);
|
|
PyCell_SET(op, obj);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
cell_dealloc(PyCellObject *op)
|
|
{
|
|
_PyObject_GC_UNTRACK(op);
|
|
Py_XDECREF(op->ob_ref);
|
|
PyObject_GC_Del(op);
|
|
}
|
|
|
|
static PyObject *
|
|
cell_repr(PyCellObject *op)
|
|
{
|
|
if (op->ob_ref == NULL)
|
|
return PyUnicode_FromFormat("<cell at %p: empty>", op);
|
|
|
|
return PyUnicode_FromFormat("<cell at %p: %.80s object at %p>",
|
|
op, op->ob_ref->ob_type->tp_name,
|
|
op->ob_ref);
|
|
}
|
|
|
|
static int
|
|
cell_traverse(PyCellObject *op, visitproc visit, void *arg)
|
|
{
|
|
Py_VISIT(op->ob_ref);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
cell_clear(PyCellObject *op)
|
|
{
|
|
Py_CLEAR(op->ob_ref);
|
|
return 0;
|
|
}
|
|
|
|
static PyObject *
|
|
cell_get_contents(PyCellObject *op, void *closure)
|
|
{
|
|
Py_XINCREF(op->ob_ref);
|
|
return op->ob_ref;
|
|
}
|
|
|
|
static PyGetSetDef cell_getsetlist[] = {
|
|
{"cell_contents", (getter)cell_get_contents, NULL},
|
|
{NULL} /* sentinel */
|
|
};
|
|
|
|
PyTypeObject PyCell_Type = {
|
|
PyVarObject_HEAD_INIT(&PyType_Type, 0)
|
|
"cell",
|
|
sizeof(PyCellObject),
|
|
0,
|
|
(destructor)cell_dealloc, /* tp_dealloc */
|
|
0, /* tp_print */
|
|
0, /* tp_getattr */
|
|
0, /* tp_setattr */
|
|
0, /* tp_compare */
|
|
(reprfunc)cell_repr, /* tp_repr */
|
|
0, /* tp_as_number */
|
|
0, /* tp_as_sequence */
|
|
0, /* tp_as_mapping */
|
|
0, /* tp_hash */
|
|
0, /* tp_call */
|
|
0, /* tp_str */
|
|
PyObject_GenericGetAttr, /* tp_getattro */
|
|
0, /* tp_setattro */
|
|
0, /* tp_as_buffer */
|
|
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
|
|
0, /* tp_doc */
|
|
(traverseproc)cell_traverse, /* tp_traverse */
|
|
(inquiry)cell_clear, /* tp_clear */
|
|
0, /* tp_richcompare */
|
|
0, /* tp_weaklistoffset */
|
|
0, /* tp_iter */
|
|
0, /* tp_iternext */
|
|
0, /* tp_methods */
|
|
0, /* tp_members */
|
|
cell_getsetlist, /* tp_getset */
|
|
};
|