Add support for weak references to code objects. This will be used by an optimization in the incoming Python 3 JIT.

Patch by Reid Kleckner!
This commit is contained in:
Collin Winter 2010-03-18 21:54:01 +00:00
parent 2e0a53fdf6
commit 001a3952c9
6 changed files with 40 additions and 7 deletions

View file

@ -103,6 +103,7 @@ PyCode_New(int argcount, int nlocals, int stacksize, int flags,
Py_INCREF(lnotab);
co->co_lnotab = lnotab;
co->co_zombieframe = NULL;
co->co_weakreflist = NULL;
}
return co;
}
@ -314,6 +315,8 @@ code_dealloc(PyCodeObject *co)
Py_XDECREF(co->co_lnotab);
if (co->co_zombieframe != NULL)
PyObject_GC_Del(co->co_zombieframe);
if (co->co_weakreflist != NULL)
PyObject_ClearWeakRefs((PyObject*)co);
PyObject_DEL(co);
}
@ -490,8 +493,8 @@ PyTypeObject PyCode_Type = {
code_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
code_richcompare, /* tp_richcompare */
0, /* tp_weaklistoffset */
code_richcompare, /* tp_richcompare */
offsetof(PyCodeObject, co_weakreflist), /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */