error.py (1321B)
1 # -*- coding: utf-8 -*- 2 # 3 # Copyright (c) 2017-2019 Red Hat Inc. 4 # 5 # Authors: 6 # Markus Armbruster <armbru@redhat.com> 7 # Marc-André Lureau <marcandre.lureau@redhat.com> 8 # 9 # This work is licensed under the terms of the GNU GPL, version 2. 10 # See the COPYING file in the top-level directory. 11 12 """ 13 QAPI error classes 14 15 Common error classes used throughout the package. Additional errors may 16 be defined in other modules. At present, `QAPIParseError` is defined in 17 parser.py. 18 """ 19 20 from typing import Optional 21 22 from .source import QAPISourceInfo 23 24 25 class QAPIError(Exception): 26 """Base class for all exceptions from the QAPI package.""" 27 28 29 class QAPISourceError(QAPIError): 30 """Error class for all exceptions identifying a source location.""" 31 def __init__(self, 32 info: Optional[QAPISourceInfo], 33 msg: str, 34 col: Optional[int] = None): 35 super().__init__() 36 self.info = info 37 self.msg = msg 38 self.col = col 39 40 def __str__(self) -> str: 41 assert self.info is not None 42 loc = str(self.info) 43 if self.col is not None: 44 assert self.info.line is not None 45 loc += ':%s' % self.col 46 return loc + ': ' + self.msg 47 48 49 class QAPISemError(QAPISourceError): 50 """Error class for semantic QAPI errors."""