@@ -15,9 +15,20 @@
# See the COPYING file in the top-level directory.
import re
+from typing import Dict, Optional
from .common import c_name
from .error import QAPISemError
+from .parser import QAPIDoc
+from .source import QAPISourceInfo
+
+
+# Deserialized JSON objects as returned by the parser.
+# The values of this mapping are not necessary to exhaustively type
+# here (and also not practical as long as mypy lacks recursive
+# types), because the purpose of this module is to interrogate that
+# type.
+_JSONObject = Dict[str, object]
# Names consist of letters, digits, -, and _, starting with a letter.
@@ -315,9 +326,20 @@ def check_event(expr, info):
def check_exprs(exprs):
for expr_elem in exprs:
- expr = expr_elem['expr']
- info = expr_elem['info']
- doc = expr_elem.get('doc')
+ # Expression
+ assert isinstance(expr_elem['expr'], dict)
+ for key in expr_elem['expr'].keys():
+ assert isinstance(key, str)
+ expr: _JSONObject = expr_elem['expr']
+
+ # QAPISourceInfo
+ assert isinstance(expr_elem['info'], QAPISourceInfo)
+ info: QAPISourceInfo = expr_elem['info']
+
+ # Optional[QAPIDoc]
+ tmp = expr_elem.get('doc')
+ assert tmp is None or isinstance(tmp, QAPIDoc)
+ doc: Optional[QAPIDoc] = tmp
if 'include' in expr:
continue
mypy does not know the types of values stored in Dicts that masquerade as objects. Help the type checker out by constraining the type. Signed-off-by: John Snow <jsnow@redhat.com> --- scripts/qapi/expr.py | 28 +++++++++++++++++++++++++--- 1 file changed, 25 insertions(+), 3 deletions(-)