Skip to content

bpo-43908: check_set_special_type_attr() and type_set_annotations() now check for immutable flag #25743

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 8 commits into from
Apr 30, 2021
Merged

bpo-43908: check_set_special_type_attr() and type_set_annotations() now check for immutable flag #25743

Changes from 5 commits
Commits
Show all changes
8 commits
Select commit Hold shift + click to select a range
ce4113f
check_set_special_type_attr() now checks for Py_TPFLAGS_IMMUTABLETYPE…
Apr 30, 2021
af09ad6
type_set_annotations now check for immutable flag iso. heap type flag
Apr 30, 2021
392af9c
Advertise immutable flag in error message
Apr 30, 2021
fd929c0
Address review: improve comments
Apr 30, 2021
52795a4
Fix formatting
Apr 30, 2021
817b8cf
Update Objects/typeobject.c
vstinner Apr 30, 2021
b464ab5
Don't need quotes when using %R
Apr 30, 2021
10b0071
Fix test_descr
vstinner Apr 30, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 11 additions & 7 deletions Objects/typeobject.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -461,14 +461,16 @@ static PyMemberDef type_members[] = {
static int
check_set_special_type_attr(PyTypeObject *type, PyObject *value, const char *name)
{
if (!(type->tp_flags & Py_TPFLAGS_HEAPTYPE)) {
if (_PyType_HasFeature(type, Py_TPFLAGS_IMMUTABLETYPE)) {
PyErr_Format(PyExc_TypeError,
"can't set %s.%s", type->tp_name, name);
"cannot set '%R' attribute of immutable type '%s'",
name, type->tp_name);
return 0;
}
if (!value) {
PyErr_Format(PyExc_TypeError,
"can't delete %s.%s", type->tp_name, name);
"cannot delete '%R' attribute of immutable type '%s'",
name, type->tp_name);
return 0;
}

Expand Down Expand Up @@ -973,8 +975,10 @@ type_get_annotations(PyTypeObject *type, void *context)
static int
type_set_annotations(PyTypeObject *type, PyObject *value, void *context)
{
if (!(type->tp_flags & Py_TPFLAGS_HEAPTYPE)) {
PyErr_Format(PyExc_TypeError, "can't set attributes of built-in/extension type '%s'", type->tp_name);
if (_PyType_HasFeature(type, Py_TPFLAGS_IMMUTABLETYPE)) {
PyErr_Format(PyExc_TypeError,
"cannot set '__annotations__' attribute of immutable type '%s'",
type->tp_name);
return -1;
}

Expand Down Expand Up @@ -3947,8 +3951,8 @@ type_setattro(PyTypeObject *type, PyObject *name, PyObject *value)
if (type->tp_flags & Py_TPFLAGS_IMMUTABLETYPE) {
PyErr_Format(
PyExc_TypeError,
"can't set attributes of built-in/extension type '%s'",
type->tp_name);
"cannot set '%R' attribute of immutable type '%s'",
name, type->tp_name);
return -1;
}
if (PyUnicode_Check(name)) {
Expand Down