#12313: Fix yet another memory leak caused by caching of coercion data
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Reporter: SimonKing
| Owner: rlm
Type: defect
| Status: needs_work
Priority: major
| Milestone: sage-5.0
Component: memleak
| Keywords: coercion weak dictionary
Work_issues: Find out why some attribute of a parent is deleted before the
parent's elements are deleted | Upstream: N/A
Reviewer:
| Author: Simon King
Merged:
| Dependencies: #715
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Comment(by SimonKing):
I added some print statements into the init and dealloc methods of
`ntl_ZZ_pEContext` (namely, it is the type of `self._parent._modulus`).
However, even though `self._parent._modulus` is gone, the deallocation
method of `self._parent._modulus` is not called.
Still. Of course one could add a try-except clause into the deallocation
of a polynomial template. But it should simply not be the case that an
attribute of an existing object disappears!
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12313#comment:15>
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