qapi/error: Add type hints

No functional change.

Note: QAPISourceError's info parameter is Optional[] because schema.py
treats the info property of its various classes as Optional to
accommodate built-in types, which have no source. See prior commit
'qapi/error: assert QAPISourceInfo is not None'.

Signed-off-by: John Snow <jsnow@redhat.com>

Message-Id: <20210421192233.3542904-8-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 15:22:32 -04:00 committed by Markus Armbruster
parent 92870cf3af
commit 30d0a016e9

View File

@ -17,6 +17,10 @@ be defined in other modules. At present, `QAPIParseError` is defined in
parser.py.
"""
from typing import Optional
from .source import QAPISourceInfo
class QAPIError(Exception):
"""Base class for all exceptions from the QAPI package."""
@ -24,13 +28,16 @@ class QAPIError(Exception):
class QAPISourceError(QAPIError):
"""Error class for all exceptions identifying a source location."""
def __init__(self, info, msg, col=None):
def __init__(self,
info: Optional[QAPISourceInfo],
msg: str,
col: Optional[int] = None):
super().__init__()
self.info = info
self.msg = msg
self.col = col
def __str__(self):
def __str__(self) -> str:
assert self.info is not None
loc = str(self.info)
if self.col is not None: