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-rw-r--r--scripts/qapi/expr.py33
1 files changed, 16 insertions, 17 deletions
diff --git a/scripts/qapi/expr.py b/scripts/qapi/expr.py
index 4ebed4c488..de7fc16fac 100644
--- a/scripts/qapi/expr.py
+++ b/scripts/qapi/expr.py
@@ -146,30 +146,29 @@ def check_flags(expr: _JSONObject, info: QAPISourceInfo) -> None:
def check_if(expr: _JSONObject, info: QAPISourceInfo, source: str) -> None:
- def check_if_str(ifcond: object) -> None:
- if not isinstance(ifcond, str):
- raise QAPISemError(
- info,
- "'if' condition of %s must be a string or a list of strings"
- % source)
- if ifcond.strip() == '':
- raise QAPISemError(
- info,
- "'if' condition '%s' of %s makes no sense"
- % (ifcond, source))
-
ifcond = expr.get('if')
if ifcond is None:
return
+
if isinstance(ifcond, list):
- if ifcond == []:
+ if not ifcond:
raise QAPISemError(
info, "'if' condition [] of %s is useless" % source)
- for elt in ifcond:
- check_if_str(elt)
else:
- check_if_str(ifcond)
- expr['if'] = [ifcond]
+ # Normalize to a list
+ ifcond = expr['if'] = [ifcond]
+
+ for elt in ifcond:
+ if not isinstance(elt, str):
+ raise QAPISemError(
+ info,
+ "'if' condition of %s must be a string or a list of strings"
+ % source)
+ if not elt.strip():
+ raise QAPISemError(
+ info,
+ "'if' condition '%s' of %s makes no sense"
+ % (elt, source))
def normalize_members(members: object) -> None: