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"""
Test for memory leaks when adding more memory view attributes in subtypes.
"""
import gc
from cython.view cimport array
def count_memoryviews():
gc.collect()
return sum([1 if 'memoryview' in str(type(o)) else 0
for o in gc.get_objects()])
def run_test(cls, num_iters):
orig_count = count_memoryviews()
def f():
x = cls(1024)
for i in range(num_iters):
f()
return count_memoryviews() - orig_count
cdef class BaseType:
"""
>>> run_test(BaseType, 10)
0
"""
cdef double[:] buffer
def __cinit__(self, n):
self.buffer = array((n,), sizeof(double), 'd')
cdef class Subtype(BaseType):
"""
>>> run_test(Subtype, 10)
0
"""
cdef double[:] buffer2
def __cinit__(self, n):
self.buffer2 = array((n,), sizeof(double), 'd')
cdef class SubtypeWithUserDealloc(BaseType):
"""
>>> run_test(SubtypeWithUserDealloc, 10)
0
"""
cdef double[:] buffer2
def __cinit__(self, n):
self.buffer2 = array((n,), sizeof(double), 'd')
def __dealloc__(self):
pass
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