#14159: Don't install callbacks on values of TripleDict, MonoDict
------------------------------+---------------------------------------------
Reporter: nbruin | Owner: tbd
Type: defect | Status: needs_review
Priority: major | Milestone: sage-5.8
Component: memleak | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers: Nils Bruin
Authors: Simon King | Merged in:
Dependencies: #13387 | Stopgaps:
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Comment (by nbruin):
{{{
%cython
cdef class dictest(object):
cpdef get(self,int k1,int k2,int k3):
if k1==1 and k2==1 and k3==1:
return True
else:
return False
def __getitem__(self,k):
cdef int k1,k2,k3
try:
k1,k2,k3=k
except:
raise KeyError
return self.get(k1,k2,k3)
}}}
regular method call protocol is pretty expensive:
{{{
sage: C=dictest()
sage: timeit("C.get(1,1,1)")
625 loops, best of 3: 795 ns per loop
sage: timeit("C[1,1,1]")
625 loops, best of 3: 717 ns per loop
}}}
(but of course, from cython, one should absolutely use the cdef form)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14159#comment:43>
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