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 import os
  28 import sys
  29
  30 def makeDir(path):
  31     if os.path.exists(path):
  32         if not os.path.isdir(path):
  33             raise AttributeError, "%s exists but is not directory" % path
  34     else:
  35         os.mkdir(path)
  36
  37 class PairContainer(object):
  38     def __init__(self, pairs=None):
  39         self.pairs = {}
  40         if pairs:
  41             self.pairs.update(pairs)
  42
  43     def __contains__(self, item):
  44         return item in self.pairs
  45
  46     def __getitem__(self, item):
  47         return self.pairs[item]
  48
  49     def __setitem__(self, item, value):
  50         self.pairs[item] = value
  51
  52     def get(self, item, failobj=None):
  53         return self.pairs.get(item, failobj)
  54
  55 class Location(object):
  56     def __init__(self, filename, lineno):
  57         self.filename = filename
  58         self.lineno = lineno
  59
  60     def __str__(self):
  61         return '%s:%d' % (os.path.basename(self.filename), self.lineno)
  62
  63     def warning(self, message, *args):
  64         if args:
  65             message = message % args
  66         #raise Exception, "%s: Warning: %s" % (self, message)
  67         print >>sys.stderr, "%s: Warning: %s" % (self, message)
  68
  69     def error(self, message, *args):
  70         if args:
  71             message = message % args
  72         raise Exception, "%s: Error: %s" % (self, message)
  73         sys.exit("\n%s: Error: %s" % (self, message))
  74
  75 __all__ = [ 'makeDir', 'PairContainer', 'Location' ]