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"""
Copyright 2008, 2009 Free Software Foundation, Inc.
This file is part of GNU Radio
GNU Radio Companion is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
GNU Radio Companion is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
"""
class Element(object):
def __init__(self, parent=None):
self._parent = parent
##################################################
# Element Validation API
##################################################
def validate(self): self._error_messages = list()
def is_valid(self): return not self.get_error_messages() or not self.get_enabled()
def add_error_message(self, msg): self._error_messages.append(msg)
def get_error_messages(self): return self._error_messages
def rewrite(self): pass
def get_enabled(self): return True
def get_parent(self): return self._parent
##############################################
## Type testing methods
##############################################
def is_element(self): return True
def is_platform(self): return False
def is_flow_graph(self): return False
def is_connection(self): return False
def is_block(self): return False
def is_source(self): return False
def is_sink(self): return False
def is_port(self): return False
def is_param(self): return False
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