def ancestors(self, recurs=True, context=None):
"""return an iterator on the node base classes in a prefixed
depth first order
:param recurs:
boolean indicating if it should recurse or return direct
ancestors only
"""
# FIXME: should be possible to choose the resolution order
# XXX inference make infinite loops possible here (see BaseTransformer
# manipulation in the builder module for instance)
yielded = set([self])
if context is None:
context = InferenceContext()
for stmt in self.bases:
with context.restore_path():
try:
for baseobj in stmt.infer(context):
if not isinstance(baseobj, Class):
# duh ?
continue
if baseobj in yielded:
continue # cf xxx above
yielded.add(baseobj)
yield baseobj
if recurs:
for grandpa in baseobj.ancestors(True, context):
if grandpa in yielded:
continue # cf xxx above
yielded.add(grandpa)
yield grandpa
except InferenceError:
# XXX log error ?
continue
def ancestors(self, recurs=True, context=None):
"""return an iterator on the node base classes in a prefixed
depth first order
:param recurs:
boolean indicating if it should recurse or return direct
ancestors only
"""
# FIXME: should be possible to choose the resolution order
# XXX inference make infinite loops possible here (see BaseTransformer
# manipulation in the builder module for instance)
yielded = set([self])
if context is None:
context = InferenceContext()
for stmt in self.bases:
with context.restore_path():
try:
for baseobj in stmt.infer(context):
if not isinstance(baseobj, Class):
# duh ?
continue
if baseobj in yielded:
continue # cf xxx above
yielded.add(baseobj)
yield baseobj
if recurs:
for grandpa in baseobj.ancestors(True, context):
if grandpa in yielded:
continue # cf xxx above
yielded.add(grandpa)
yield grandpa
except InferenceError:
# XXX log error ?
continue
