def init(self, **kwargs):
self._cached_byte_size = 0
self._cached_byte_size_dirty = len(kwargs) > 0
self._fields = {}
# _unknown_fields is () when empty for efficiency, and will be turned into
# a list if fields are added.
self._unknown_fields = ()
self._is_present_in_parent = False
self._listener = message_listener_mod.NullMessageListener()
self._listener_for_children = _Listener(self)
for field_name, field_value in iteritems(kwargs):
field = _GetFieldByName(message_descriptor, field_name)
if field is None:
raise TypeError(
"%s() got an unexpected keyword argument '%s'" %
(message_descriptor.name, field_name))
if field.label == _FieldDescriptor.LABEL_REPEATED:
copy = field._default_constructor(self)
if field.cpp_type == _FieldDescriptor.CPPTYPE_MESSAGE: # Composite
for val in field_value:
copy.add().MergeFrom(val)
else: # Scalar
copy.extend(field_value)
self._fields[field] = copy
elif field.cpp_type == _FieldDescriptor.CPPTYPE_MESSAGE:
copy = field._default_constructor(self)
copy.MergeFrom(field_value)
self._fields[field] = copy
else:
setattr(self, field_name, field_value)
def SetListener(self, listener):
if listener is None:
self._listener = message_listener_mod.NullMessageListener()
else:
self._listener = listener
