# pylint: disable-msg=R0921
"""check assigment to function call where the function doesn't return

    'E1111': ('Assigning to function call which doesn\'t return',
              'Used when an assigment is done on a function call but the \
              infered function doesn\'t return anything.'),
    'W1111': ('Assigning to function call which only returns None',
              'Used when an assigment is done on a function call but the \
              infered function returns nothing but None.'),

"""
from __future__ import generators
__revision__ = None


def func_no_return():
    """function without return"""
    print 'dougloup'

A = func_no_return()


def func_return_none():
    """function returning none"""
    print 'dougloup'
    return None

A = func_return_none()


def func_return_none_and_smth():
    """function returning none and something else"""
    print 'dougloup'
    if __revision__:
        return None
    return 3

A = func_return_none_and_smth()

def generator():
    """no problemo"""
    yield __revision__

A = generator()

class Abstract(object):
    """bla bla"""
    
    def abstract_method(self):
        """use to return something in concrete implementation"""
        raise NotImplementedError
    
    def use_abstract(self):
        """should not issue E1111"""
        var = self.abstract_method()
        print var
