src/mem/slicc/util.py

   1 # Copyright (c) 2009 The Hewlett-Packard Development Company
   2 # All rights reserved.
   3 #
   4 # Redistribution and use in source and binary forms, with or without
   5 # modification, are permitted provided that the following conditions are
   6 # met: redistributions of source code must retain the above copyright
   7 # notice, this list of conditions and the following disclaimer;
   8 # redistributions in binary form must reproduce the above copyright
   9 # notice, this list of conditions and the following disclaimer in the
  10 # documentation and/or other materials provided with the distribution;
  11 # neither the name of the copyright holders nor the names of its
  12 # contributors may be used to endorse or promote products derived from
  13 # this software without specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  17 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  18 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  19 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  21 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26
  27 from __future__ import print_function
  28
  29 import os
  30 import sys
  31
  32 class PairContainer(object):
  33     def __init__(self, pairs=None):
  34         self.pairs = {}
  35         if pairs:
  36             self.pairs.update(pairs)
  37
  38     def __contains__(self, item):
  39         return item in self.pairs
  40
  41     def __getitem__(self, item):
  42         return self.pairs[item]
  43
  44     def __setitem__(self, item, value):
  45         self.pairs[item] = value
  46
  47     def get(self, item, failobj=None):
  48         return self.pairs.get(item, failobj)
  49
  50 class Location(object):
  51     def __init__(self, filename, lineno, no_warning=False):
  52         if not isinstance(filename, basestring):
  53             raise AttributeError, \
  54                 "filename must be a string, found '%s'" % (type(filename), )
  55         if not isinstance(lineno, (int, long)):
  56             raise AttributeError, \
  57                 "filename must be an integer, found '%s'" % (type(lineno), )
  58         self.filename = filename
  59         self.lineno = lineno
  60         self.no_warning = no_warning
  61
  62     def __str__(self):
  63         return '%s:%d' % (os.path.basename(self.filename), self.lineno)
  64
  65     def warning(self, message, *args):
  66         if self.no_warning:
  67             return
  68         if args:
  69             message = message % args
  70         #raise Exception, "%s: Warning: %s" % (self, message)
  71         print("%s: Warning: %s" % (self, message), file=sys.stderr)
  72
  73     def error(self, message, *args):
  74         if args:
  75             message = message % args
  76         raise Exception, "%s: Error: %s" % (self, message)
  77         sys.exit("\n%s: Error: %s" % (self, message))
  78
  79 __all__ = [ 'PairContainer', 'Location' ]