#9065: Add support for facade parents
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Reporter: nborie | Owner: nthiery
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.4.3
Component: categories | Keywords: facade, parent, TestSuite
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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The goal of this tickets is to add support for facade parents; see:
http://groups.google.com/group/sage-
devel/browse_thread/thread/a5ea008c24c17956/00ab8c6d2a16f57a
The main issue currently is that facade parents (Primes,
NonNegativeIntegers, SymmetricFunctions, ...) are not aware that they are,
which breaks some of the generic TestSuite tests.
This involves:
- Creating a category or abstract class for facade parents
Such parents should declare a list of parents they are facade
for.
- Adding a method P.check_element(x) (find a better name!) in
Sets.ParentMethods which checks that the parent of x is P. Override this
method for facade parents to check that the parent of x is one of the
declared parents of P.
- Fix P._test_one(), P._test_zero(), P._test_an_element() (and maybe
others) to use P.check_element(x) instead of x in P.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9065>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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