test_autograd.py 文件源码

def test_gc_in_destructor(self):
        """
        Previously, if a Function destructor triggered a garbage collection,
        the Variable's tp_dealloc handler would get called twice leading to a
        segfault.
        """
        class CollectOnDelete(Function):

            def __del__(self):
                gc.collect()

        for i in range(10):
            Variable(torch.randn(10, 10), _grad_fn=CollectOnDelete())