FazBrowse GitHub Viewer | Trending |
URL:
| Home
Tools: [Download Repo ZIP]   [Original HTTPS Page]

gh-105927: type_from_ref() uses _PyWeakref_GET_REF() by vstinner · Pull Request #105963 · python/cpython · GitHub

/ cpython Public

gh-105927: type_from_ref() uses _PyWeakref_GET_REF() #105963

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
vstinner merged 2 commits into from
Jun 21, 2023
+24 −13
Conversation 0 Commits 2 Checks 0 Files changed 1
Merged

gh-105927: type_from_ref() uses _PyWeakref_GET_REF() #105963

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
9f7a1df
gh-105927: type_from_ref() uses _PyWeakref_GET_REF()
vstinner Jun 21, 2023
84875a7
Fix get_subclasses_key()
vstinner Jun 21, 2023
File filter

Filter by extension

Filter by extension .c  (1) All 1 file type selected
Viewed files
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Unified
Split
Hide whitespace
Diff view
Unified
Split
Hide whitespace
37 changes: 24 additions & 13 deletions Objects/typeobject.c
Show comments
View file
Open in desktop
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
Show hidden characters
Original file line number Diff line number Diff line change
Expand Up @@ -3,18 +3,19 @@
#include "Python.h"
#include "pycore_call.h"
#include "pycore_code.h" // CO_FAST_FREE
#include "pycore_symtable.h" // _Py_Mangle()
#include "pycore_dict.h" // _PyDict_KeysSize()
#include "pycore_frame.h" // _PyInterpreterFrame
#include "pycore_initconfig.h" // _PyStatus_OK()
#include "pycore_long.h" // _PyLong_IsNegative()
#include "pycore_memoryobject.h" // _PyMemoryView_FromBufferProc()
#include "pycore_moduleobject.h" // _PyModule_GetDef()
#include "pycore_object.h" // _PyType_HasFeature()
#include "pycore_long.h" // _PyLong_IsNegative()
#include "pycore_pyerrors.h" // _PyErr_Occurred()
#include "pycore_pystate.h" // _PyThreadState_GET()
#include "pycore_symtable.h" // _Py_Mangle()
#include "pycore_typeobject.h" // struct type_cache
#include "pycore_unionobject.h" // _Py_union_type_or
#include "pycore_frame.h" // _PyInterpreterFrame
#include "pycore_weakref.h" // _PyWeakref_GET_REF()
#include "opcode.h" // MAKE_CELL
#include "structmember.h" // PyMemberDef

Expand Down Expand Up @@ -75,13 +76,10 @@ slot_tp_setattro(PyObject *self, PyObject *name, PyObject *value);
static inline PyTypeObject *
type_from_ref(PyObject *ref)
{
assert(PyWeakref_CheckRef(ref));
PyObject *obj = PyWeakref_GET_OBJECT(ref); // borrowed ref
assert(obj != NULL);
if (obj == Py_None) {
PyObject *obj = _PyWeakref_GET_REF(ref);
if (obj == NULL) {
return NULL;
}
assert(PyType_Check(obj));
return _PyType_CAST(obj);
}

Expand Down Expand Up @@ -450,15 +448,17 @@ _PyType_GetSubclasses(PyTypeObject *self)
Py_ssize_t i = 0;
PyObject *ref; // borrowed ref
while (PyDict_Next(subclasses, &i, NULL, &ref)) {
PyTypeObject *subclass = type_from_ref(ref); // borrowed
PyTypeObject *subclass = type_from_ref(ref);
if (subclass == NULL) {
continue;
}

if (PyList_Append(list, _PyObject_CAST(subclass)) < 0) {
Py_DECREF(list);
Py_DECREF(subclass);
return NULL;
}
Py_DECREF(subclass);
}
return list;
}
Expand Down Expand Up @@ -778,11 +778,12 @@ PyType_Modified(PyTypeObject *type)
Py_ssize_t i = 0;
PyObject *ref;
while (PyDict_Next(subclasses, &i, NULL, &ref)) {
PyTypeObject *subclass = type_from_ref(ref); // borrowed
PyTypeObject *subclass = type_from_ref(ref);
if (subclass == NULL) {
continue;
}
PyType_Modified(subclass);
Py_DECREF(subclass);
}
}

Expand Down Expand Up @@ -4989,12 +4990,13 @@ clear_static_tp_subclasses(PyTypeObject *type)
Py_ssize_t i = 0;
PyObject *key, *ref; // borrowed ref
while (PyDict_Next(subclasses, &i, &key, &ref)) {
PyTypeObject *subclass = type_from_ref(ref); // borrowed
PyTypeObject *subclass = type_from_ref(ref);
if (subclass == NULL) {
continue;
}
// All static builtin subtypes should have been finalized already.
assert(!(subclass->tp_flags & _Py_TPFLAGS_STATIC_BUILTIN));
Py_DECREF(subclass);
}

clear_tp_subclasses(type);
Expand Down Expand Up @@ -7636,10 +7638,15 @@ get_subclasses_key(PyTypeObject *type, PyTypeObject *base)
PyObject *subclasses = lookup_tp_subclasses(base);
if (subclasses != NULL) {
while (PyDict_Next(subclasses, &i, &key, &ref)) {
PyTypeObject *subclass = type_from_ref(ref); // borrowed
PyTypeObject *subclass = type_from_ref(ref);
if (subclass == NULL) {
continue;
}
if (subclass == type) {
Py_DECREF(subclass);
return Py_NewRef(key);
}
Py_DECREF(subclass);
}
}
/* It wasn't found. */
Expand Down Expand Up @@ -10035,7 +10042,7 @@ recurse_down_subclasses(PyTypeObject *type, PyObject *attr_name,
Py_ssize_t i = 0;
PyObject *ref;
while (PyDict_Next(subclasses, &i, NULL, &ref)) {
PyTypeObject *subclass = type_from_ref(ref); // borrowed
PyTypeObject *subclass = type_from_ref(ref);
if (subclass == NULL) {
continue;
}
Expand All @@ -10045,16 +10052,20 @@ recurse_down_subclasses(PyTypeObject *type, PyObject *attr_name,
if (dict != NULL && PyDict_Check(dict)) {
int r = PyDict_Contains(dict, attr_name);
if (r < 0) {
Py_DECREF(subclass);
return -1;
}
if (r > 0) {
Py_DECREF(subclass);
continue;
}
}

if (update_subclasses(subclass, attr_name, callback, data) < 0) {
Py_DECREF(subclass);
return -1;
}
Py_DECREF(subclass);
}
return 0;
}
Expand Down
Back | FazBrowse Home | New Git URL