Iterating over the members of data isn't going to work if it's not some
form of dict anyway, but for type safety, formalize it.
Signed-off-by: John Snow <jsnow@redhat.com>
---
scripts/qapi/expr.py | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/scripts/qapi/expr.py b/scripts/qapi/expr.py
index 3f5af5f5e4..633f9b9172 100644
--- a/scripts/qapi/expr.py
+++ b/scripts/qapi/expr.py
@@ -247,6 +247,9 @@ def check_union(expr, info):
raise QAPISemError(info, "'discriminator' requires 'base'")
check_name_is_str(discriminator, info, "'discriminator'")
+ if not isinstance(members, dict):
+ raise QAPISemError(info, "'data' must be an object")
+