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# sectracker.diagnostics -- keeping track of errors and warnings
# Copyright (C) 2010 Florian Weimer <fw@deneb.enyo.de>
#
# This program 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.
#
# This program 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
from sectracker.xcollections import namedtuple as _namedtuple
Message = _namedtuple("Message", "file line level message")
def _checkfile(file):
if not isinstance(file, basestring):
raise ValueError("file name is not a string: " + repr(file))
return file
def _checkline(line):
if not isinstance(line, int):
raise ValueError("not a number: " + repr(line))
if line <= 0:
raise ValueError("line number must be positive: " + repr(line))
return line
class Diagnostics:
def __init__(self):
self._messages = []
self._file = None
self._line = None
def setlocation(self, file, line=1):
if file is None and line is None:
self._file = self._line = None
else:
self._file = _checkfile(file)
self._line = _checkline(line)
def error(self, message, file=None, line=None):
self.record(file, line, "error", message)
def warning(self, message, file=None, line=None):
self.record(file, line, "warning", message)
def record(self, file, line, level, message):
if file is None:
file = self._file
if file is None:
raise Excpetion("location has not been set")
else:
_checkfile(file)
if line is None:
line = self._line
if line is None:
raise Excpetion("location has not been set")
else:
_checkline(line)
self._messages.append(Message(file, line, level, message))
def file(self):
if self._file is None:
raise Excpetion("location has not been set")
return self._file
def line(self):
if self._line is None:
raise Excpetion("location has not been set")
return self._line
def messages(self):
return tuple(self._messages)
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