ppapi/generators/idl_log.py

   1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 """ Error and information logging for IDL """
   6
   7 import sys
   8
   9
  10 class IDLLog(object):
  11   """Captures and routes logging output.
  12
  13   Caputres logging output and/or sends out via a file handle, typically
  14   stdout or stderr.
  15   """
  16   def __init__(self, name, out):
  17     if name:
  18       self._name = '%s : ' % name
  19     else:
  20       self._name = ''
  21
  22     self._out = out
  23     self._capture = False
  24     self._console = True
  25     self._log = []
  26
  27   def Log(self, msg):
  28     if self._console:
  29       line = "%s\n" % (msg)
  30       self._out.write(line)
  31     if self._capture:
  32       self._log.append(msg)
  33
  34   def LogLine(self, filename, lineno, pos, msg):
  35     if self._console:
  36       line = "%s(%d) : %s%s\n" % (filename, lineno, self._name, msg)
  37       self._out.write(line)
  38     if self._capture:
  39       self._log.append(msg)
  40
  41   def SetConsole(self, enable):
  42     self._console = enable
  43
  44   def SetCapture(self, enable):
  45     self._capture = enable
  46
  47   def DrainLog(self):
  48     out = self._log
  49     self._log = []
  50     return out
  51
  52 ErrOut  = IDLLog('Error', sys.stderr)
  53 WarnOut = IDLLog('Warning', sys.stdout)
  54 InfoOut = IDLLog('', sys.stdout)