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gh-105927: Add _PyWeakref_IS_DEAD() function (#105992)

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* Add _PyWeakref_IS_DEAD() internal function.
* Modify is_dead_weakref() of Modules/_weakref.c and
  _pysqlite_drop_unused_cursor_references() to replace
  PyWeakref_GET_OBJECT() with _PyWeakref_IS_DEAD().
* Replace "int i" with "Py_ssize_t i" to iterate on cursors
  in _pysqlite_drop_unused_cursor_references().
This commit is contained in:
Victor Stinner 2023-06-22 21:56:44 +02:00 • committed by GitHub
parent d8f87cdf94
commit c38da1e3e1
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3 changed files with 30 additions and 14 deletions
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5
Modules/_weakref.c
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@ -1,5 +1,6 @@
#include "Python.h"
#include "pycore_object.h" // _PyObject_GET_WEAKREFS_LISTPTR
#include "pycore_object.h" // _PyObject_GET_WEAKREFS_LISTPTR
#include "pycore_weakref.h" // _PyWeakref_IS_DEAD()
#define GET_WEAKREFS_LISTPTR(o) \
@ -43,7 +44,7 @@ is_dead_weakref(PyObject *value)
PyErr_SetString(PyExc_TypeError, "not a weakref");
return -1;
}
return PyWeakref_GET_OBJECT(value) == Py_None;
return _PyWeakref_IS_DEAD(value);
}
/*[clinic input]