bpo-32571: Avoid raising unneeded AttributeError and silencing it in C code (GH-5222)

Add two new private APIs: _PyObject_LookupAttr() and _PyObject_LookupAttrId()
This commit is contained in:
Serhiy Storchaka 2018-01-25 10:49:40 +02:00 committed by INADA Naoki
parent 2b822a0bb1
commit f320be77ff
22 changed files with 1455 additions and 1442 deletions

View file

@ -536,11 +536,20 @@ PyAPI_FUNC(int) PyObject_SetAttr(PyObject *, PyObject *, PyObject *);
PyAPI_FUNC(int) PyObject_HasAttr(PyObject *, PyObject *);
#ifndef Py_LIMITED_API
PyAPI_FUNC(int) _PyObject_IsAbstract(PyObject *);
/* Same as PyObject_GetAttr(), but don't raise AttributeError. */
PyAPI_FUNC(PyObject *) _PyObject_GetAttrWithoutError(PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) _PyObject_GetAttrId(PyObject *, struct _Py_Identifier *);
PyAPI_FUNC(int) _PyObject_SetAttrId(PyObject *, struct _Py_Identifier *, PyObject *);
PyAPI_FUNC(int) _PyObject_HasAttrId(PyObject *, struct _Py_Identifier *);
/* Replacements of PyObject_GetAttr() and _PyObject_GetAttrId() which
don't raise AttributeError.
Return 1 and set *result != NULL if an attribute is found.
Return 0 and set *result == NULL if an attribute is not found;
an AttributeError is silenced.
Return -1 and set *result == NULL if an error other than AttributeError
is raised.
*/
PyAPI_FUNC(int) _PyObject_LookupAttr(PyObject *, PyObject *, PyObject **);
PyAPI_FUNC(int) _PyObject_LookupAttrId(PyObject *, struct _Py_Identifier *, PyObject **);
PyAPI_FUNC(PyObject **) _PyObject_GetDictPtr(PyObject *);
#endif
PyAPI_FUNC(PyObject *) PyObject_SelfIter(PyObject *);