1 #!/usr/bin/env python 2 3 """ 4 Common classes. 5 6 Copyright (C) 2007, 2008 Paul Boddie <paul@boddie.org.uk> 7 8 This program is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free Software 10 Foundation; either version 3 of the License, or (at your option) any later 11 version. 12 13 This program is distributed in the hope that it will be useful, but WITHOUT 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 15 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 16 details. 17 18 You should have received a copy of the GNU General Public License along with 19 this program. If not, see <http://www.gnu.org/licenses/>. 20 """ 21 22 class ProcessingError(Exception): 23 24 "A processing error." 25 26 pass 27 28 class NodeProcessingError(ProcessingError): 29 30 "A processing error associated with a particular program node." 31 32 def __init__(self, unit_name, node, message): 33 self.unit_name = unit_name 34 self.node = node 35 self.message = message 36 37 def __repr__(self): 38 return "Error in %r at line %d: %s" % (self.unit_name, self.node.lineno, self.message) 39 40 def __str__(self): 41 return repr(self) 42 43 # vim: tabstop=4 expandtab shiftwidth=4