#11115: Allow for extension classes to inherit cached methods from their
category
---------------------------+------------------------------------------------
Reporter: SimonKing | Owner: jason
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.7
Component: misc | Keywords: category cython cache
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
---------------------------+------------------------------------------------
In order to make full use of the parent and element methods of a category,
it should be possible to define a ''cached'' method in the category, so
that any object of that category inherits it ''with caching''.
Currently, it fails as follows:
{{{
sage: class MyCategory(Category):
....: def super_categories(self):
....: return [Objects()]
....: class ParentMethods:
....: @cached_method
....: def f(self, x):
....: return x^2
....:
sage: cython("""from sage.structure.parent cimport Parent
....: cdef class MyClass(Parent): pass
....: """)
sage: O = MyClass(category=MyCategory())
sage: O.f(4)
16
sage: O.f(x) is O.f(x)
False
}}}
So, the method is inherited, but not cached.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11115>
Sage <http://www.sagemath.org>
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