#12215: Memleak in UniqueRepresentation, @cached_method
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Reporter: vbraun | Owner:
Type: defect | Status:
needs_work
Priority: major | Milestone:
sage-5.0
Component: memleak | Resolution:
Keywords: UniqueRepresentation cached_method caching | Work issues:
Keep the fix from #12313. Coercion in symmetric function algebras
Report Upstream: N/A | Reviewers:
Authors: Simon King | Merged in:
Dependencies: #11115 #11900 #12645 #11599 | Stopgaps:
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Comment (by SimonKing):
Hooray! It turns out that one can fix the failing doctest in sf.py by not
only providing a strongly cached `sf.SymmetricFunctions.__classcall__`,
but by additionally providing a strongly cached
`sfa.SymmetricFunctionAlgebra_generic.__classcall__`.
It is a bit unfortunate that a strong cache creeps back in, but apparently
the assumption of strong caching is extensively used in sage.combinat.sf.
Having weakly cached unique representation everywhere except in
sage.combinat.sf is at least something...
I am now running the full testsuite with the new modification.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12215#comment:88>
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