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gh-107689: add docstrings to abstract classes by kiblik1 · Pull Request #108882 · python/cpython · GitHub

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gh-107689: add docstrings to abstract classes #108882

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gh-107689: add docstrings to abstract classes #108882

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add docstrings to abstract classes
kiblik1 Sep 4, 2023
6c29e2a
📜🤖 Added by blurb_it.
blurb-it[bot] Sep 4, 2023
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Documentation/2023-09-04-16-01-20.gh-issue-107689.LFLFtG.rst
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@@ -0,0 +1 @@
Added docstrings to abstract ctypes.
33 changes: 30 additions & 3 deletions Modules/_ctypes/_ctypes.c
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Expand Up @@ -2899,6 +2899,13 @@ static PyMethodDef PyCData_methods[] = {
{ NULL, NULL },
};

PyDoc_STRVAR(cdata_doc,
"This non-public class is the common base class of all ctypes data types. Among other things, all ctypes type\n"
"instances contain a memory block that hold C compatible data; the address of the memory block is returned\n"
"by the addressof() helper function. Another instance variable is exposed as _objects; this contains\n"
"other Python objects that need to be kept alive in case the memory block contains pointers."
);

PyTypeObject PyCData_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_ctypes._CData",
Expand All @@ -2920,7 +2927,7 @@ PyTypeObject PyCData_Type = {
0, /* tp_setattro */
&PyCData_as_buffer, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
PyDoc_STR("XXX to be provided"), /* tp_doc */
cdata_doc, /* tp_doc */
(traverseproc)PyCData_traverse, /* tp_traverse */
(inquiry)PyCData_clear, /* tp_clear */
0, /* tp_richcompare */
Expand Down Expand Up @@ -5020,6 +5027,13 @@ Simple_repr(CDataObject *self)
return result;
}


PyDoc_STRVAR(simple_cdata_doc,
"This non-public class is the base class of all fundamental ctypes data types.\n"
"It contains the common attributes of the fundamentalctypes data types.\n"
"_SimpleCData is a subclass of _CData, so it inherits their methods and attributes."
);

static PyTypeObject Simple_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_ctypes._SimpleCData",
Expand All @@ -5041,7 +5055,7 @@ static PyTypeObject Simple_Type = {
0, /* tp_setattro */
&PyCData_as_buffer, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
PyDoc_STR("XXX to be provided"), /* tp_doc */
simple_cdata_doc, /* tp_doc */
(traverseproc)PyCData_traverse, /* tp_traverse */
(inquiry)PyCData_clear, /* tp_clear */
0, /* tp_richcompare */
Expand Down Expand Up @@ -5402,6 +5416,19 @@ static PyNumberMethods Pointer_as_number = {
(inquiry)Pointer_bool, /* nb_bool */
};


PyDoc_STRVAR(cpointer_doc,
"Private, abstract base class for pointers.\n"
"\n"
"Concrete pointer types are created by calling POINTER() with the type that will be pointed to; this is done\n"
"automatically by pointer().\n"
"\n"
"If a pointer points to an array, its elements can be read and written using standard subscript and slice ac-\n"
"cesses. Pointer objects have no size, so len() will raise TypeError. Negative subscripts will read from the\n"
"memory before the pointer (as in C), and out-of-range subscripts will probably crash with an access violation\n"
"(if you’re lucky)."
);

PyTypeObject PyCPointer_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_ctypes._Pointer",
Expand All @@ -5423,7 +5450,7 @@ PyTypeObject PyCPointer_Type = {
0, /* tp_setattro */
&PyCData_as_buffer, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
PyDoc_STR("XXX to be provided"), /* tp_doc */
cpointer_doc, /* tp_doc */
(traverseproc)PyCData_traverse, /* tp_traverse */
(inquiry)PyCData_clear, /* tp_clear */
0, /* tp_richcompare */
Expand Down
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