Coverage for local/lib/python2.7/site-packages/sage/misc/method_decorator.py : 56%
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""" Base Class to Support Method Decorators
AUTHOR:
- Martin Albrecht (2009-05): inspired by a conversation with and code by Mike Hansen """
from sage.structure.sage_object import SageObject
class MethodDecorator(SageObject): def __init__(self, f): """ EXAMPLES::
sage: from sage.misc.method_decorator import MethodDecorator sage: class Foo: ....: @MethodDecorator ....: def bar(self, x): ....: return x**2 ....: sage: J = Foo() sage: J.bar <sage.misc.method_decorator.MethodDecorator object at ...> """ else: self.__doc__ = f.__doc__
def _sage_src_(self): """ Returns the source code for the wrapped function.
EXAMPLES:
This class is rather abstract so we showcase its features using one of its subclasses::
sage: P.<x,y,z> = PolynomialRing(ZZ) sage: I = ideal( x^2 - 3*y, y^3 - x*y, z^3 - x, x^4 - y*z + 1 ) sage: "primary" in I.primary_decomposition._sage_src_() # indirect doctest True """
def __call__(self, *args, **kwds): """ EXAMPLES:
This class is rather abstract so we showcase its features using one of its subclasses::
sage: P.<x,y,z> = PolynomialRing(Zmod(126)) sage: I = ideal( x^2 - 3*y, y^3 - x*y, z^3 - x, x^4 - y*z + 1 ) sage: I.primary_decomposition() # indirect doctest Traceback (most recent call last): ... ValueError: Coefficient ring must be a field for function 'primary_decomposition'. """ return self.f(self._instance, *args, **kwds)
def __get__(self, inst, cls=None): """ EXAMPLES:
This class is rather abstract so we showcase its features using one of its subclasses::
sage: P.<x,y,z> = PolynomialRing(Zmod(126)) sage: I = ideal( x^2 - 3*y, y^3 - x*y, z^3 - x, x^4 - y*z + 1 ) sage: I.primary_decomposition() # indirect doctest Traceback (most recent call last): ... ValueError: Coefficient ring must be a field for function 'primary_decomposition'. """
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