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fields.append((start_field, c))
ifield += 1
is_field = False
self.names = names
self.fields = fields"
4633,"def check_signature(object_name, reference_object, other_object):
""""""
Given a reference class or function check if an other class or function
could be substituted without causing any instantiation/usage issues.
:param object_name: the name of the object being checked.
:type object_name: string
:param reference_object: the reference class or function.
:type reference_object: class/function
:param other_object: the other class or function to be checked.
:type other_object: class/function
:raise AutodiscoveryCheckerError: in case the other object is not
compatible with the reference object.
""""""
try:
if inspect.isclass(reference_object):
# if the reference_object is a class
if inspect.isclass(other_object):
# if the other_object is a class
if issubclass(other_object, reference_object):
# if the other_object is derived from the reference we
# should check for all the method in the former that
# exists in the the latter, wethever they recursively have
# the same signature.
reference_object_map = dict(
inspect.getmembers(reference_object,
inspect.isroutine))
for other_method_name, other_method_code in \
inspect.getmembers(other_object,
inspect.isroutine):
if other_method_name in reference_object_map:
check_signature(
object_name,
reference_object_map[other_method_name],
other_method_code)
else:
# if the other_object is not derived from the
# reference_object then all the method declared in the
# latter should exist in the former and they should
# recursively have the same signature.
other_object_map = dict(
inspect.getmembers(other_object, inspect.isroutine))
for reference_method_name, reference_method_code in \
inspect.getmembers(
reference_object, inspect.isroutine):
if reference_method_name in other_object_map:
check_signature(
object_name, reference_method_code,
other_method_code)
else:
raise AutodiscoveryCheckerError(
'""%s"", which'
' exists in the reference class, does not'
' exist in the other class, and the reference'
' class is not an anchestor of the other' %
reference_method_name)
else:
# We are comparing apples and oranges!
raise AutodiscoveryCheckerError(
""%s (the reference object)""
"" is a class while %s (the other object) is not a class"" %
(reference_object, other_object))
elif inspect.isroutine(reference_object):
# if the reference_object is a function
if inspect.isroutine(other_object):
# if the other_object is a function we will compare the
# reference_object and other_object function signautre i.e.
# their parameters.
reference_args, reference_varargs, reference_varkw, \
reference_defaults = inspect.getargspec(reference_object)
other_args, other_varargs, other_varkw, \
other_defaults = inspect.getargspec(other_object)
# We normalize the reference_defaults to be a list
if reference_defaults is not None:
reference_defaults = list(reference_defaults)
else:
reference_defaults = []
# We normalize the other_defaults to be a list
if other_defaults is not None:
other_defaults = list(other_defaults)
else:
other_defaults = []
# Check for presence of missing parameters in other function
if not (other_varargs or other_varkw):
for reference_arg in reference_args:
if reference_arg not in other_args:
raise AutodiscoveryCheckerError(
'Argument ""%s""'
' in reference function %s does not exist in'
' the other function %s' %
(reference_arg, reference_object, other_object)
)