#15931: Implement a proper hash function for (combinatorial) free module
elements
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Reporter: nthiery | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.2
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: Nicolas M. Thiéry | Reviewers: Florent Hivert
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/nthiery/ticket/15931 | e8fe5eb8943debdb457c38d3264167d66e7b2b14
Dependencies: | Stopgaps:
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Comment (by SimonKing):
Replying to [comment:6 hivert]:
> For the info, here are the Cython struct of a {{{CachedMethodNoArgs}}}:
> {{{
> cdef class CachedFunction(object):
> cdef public str __name__
> cdef public str __module__
> cdef object _argument_fixer
> cdef public object _fix_to_pos
> cdef public object f
> # cache is not always of type "dict"!
> cdef public object cache
> cdef tuple _default_key
> cdef bint is_classmethod
>
> cdef class CachedMethodCallerNoArgs(CachedFunction):
> cdef public object _instance
> }}}
> Simon: Wouldn't be possible to replace some attributes such as
`__name__`, `__module__` which are seldom used by a slower property ?
Ask Nicolas! I think he was the one who recently added `__name__` and
`__module__` to cached methods.
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Ticket URL: <http://trac.sagemath.org/ticket/15931#comment:7>
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