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Description
Feature or enhancement
Proposal:
We currently only defer functions that do not have the CO_NESTED flag set:
Lines 213 to 218 in 26ff32b
| if ((code_obj->co_flags & CO_NESTED) == 0) { | |
| // Use deferred reference counting for top-level functions, but not | |
| // nested functions because they are more likely to capture variables, | |
| // which makes prompt deallocation more important. | |
| _PyObject_SetDeferredRefcount((PyObject *)op); | |
| } |
This also excludes functions defined on nested classes. In the example below, the Foo.__init__ function will not use deferred reference counting because the __init__ method's code object has the CO_NESTED flag set.
def func():
class Foo:
def __init__(self):
passWe would like to relax the restriction on CO_NESTED to allow functions that are defined on nested classes to use deferred reference counting.
Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
Links to previous discussion of this feature:
No response