# mode: compile
cdef class Spam:
cdef int tons
cdef void add_tons(self, int x):
pass
cdef class SuperSpam(Spam):
pass
cdef void tomato():
cdef Spam spam
cdef SuperSpam superspam = SuperSpam()
spam = superspam
spam.add_tons(42)
superspam.add_tons(1764)
tomato()