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qapi/error.py: move QAPIParseError to parser.py

Browse Source 
Keeping it in error.py will create some cyclic import problems when we
add types to the QAPISchemaParser. Callers don't need to know the
details of QAPIParseError unless they are parsing or dealing directly
with the parser, so this won't create any harsh new requirements for
callers in the general case.

Update error.py with a little docstring that gives a nod to where the
error may now be found.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210421192233.3542904-6-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
John Snow 2021-04-21 15:22:30 -04:00 committed by Markus Armbruster
parent ac89761179
commit ac6a7d8884
2 changed files with 21 additions and 15 deletions
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22
scripts/qapi/error.py
View File

@ -1,7 +1,5 @@
# -*- coding: utf-8 -*-
#
# QAPI error classes
#
# Copyright (c) 2017-2019 Red Hat Inc.
#
# Authors:
@ -11,6 +9,14 @@
# This work is licensed under the terms of the GNU GPL, version 2.
# See the COPYING file in the top-level directory.
"""
QAPI error classes
Common error classes used throughout the package. Additional errors may
be defined in other modules. At present, `QAPIParseError` is defined in
parser.py.
"""
class QAPIError(Exception):
"""Base class for all exceptions from the QAPI package."""
@ -33,17 +39,5 @@ class QAPISourceError(QAPIError):
return loc + ': ' + self.msg
class QAPIParseError(QAPISourceError):
"""Error class for all QAPI schema parsing errors."""
def __init__(self, parser, msg):
col = 1
for ch in parser.src[parser.line_pos:parser.pos]:
if ch == '\t':
col = (col + 7) % 8 + 1
else:
col += 1
super().__init__(parser.info, msg, col)
class QAPISemError(QAPISourceError):
"""Error class for semantic QAPI errors."""

14
scripts/qapi/parser.py
View File

@ -18,10 +18,22 @@ from collections import OrderedDict
import os
import re
from .error import QAPIParseError, QAPISemError
from .error import QAPISemError, QAPISourceError
from .source import QAPISourceInfo
class QAPIParseError(QAPISourceError):
"""Error class for all QAPI schema parsing errors."""
def __init__(self, parser, msg):
col = 1
for ch in parser.src[parser.line_pos:parser.pos]:
if ch == '\t':
col = (col + 7) % 8 + 1
else:
col += 1
super().__init__(parser.info, msg, col)
class QAPISchemaParser:
def __init__(self, fname, previously_included=None, incl_info=None):