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authorMarkus Armbruster <armbru@redhat.com>2019-09-14 17:35:04 +0200
committerMarkus Armbruster <armbru@redhat.com>2019-09-24 14:07:23 +0200
commitb1bc31f4b7db07ca7b76de604bef4088be0c18b7 (patch)
tree57836f5ecb4aa90222df3aae6ffc018b4614790b /scripts/qapi/common.py
parente31fe1266c7daa49bd086c45efeb5af06309c0ef (diff)
downloadfocaccia-qemu-b1bc31f4b7db07ca7b76de604bef4088be0c18b7.tar.gz
focaccia-qemu-b1bc31f4b7db07ca7b76de604bef4088be0c18b7.zip
qapi: Fix to .check() empty structs just once
QAPISchemaObjectType.check() does nothing for types that have been
checked already.  Except the "has been checked" predicate is broken
for empty types: self.members is [] then, which isn't true.  The bug
is harmless, but fix it anyway: use self.member is not None instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190914153506.2151-18-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'scripts/qapi/common.py')
-rw-r--r--scripts/qapi/common.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py
index 7e79c42b6a..e2c87d1349 100644
--- a/scripts/qapi/common.py
+++ b/scripts/qapi/common.py
@@ -1406,7 +1406,7 @@ class QAPISchemaObjectType(QAPISchemaType):
         if self.members is False:               # check for cycles
             raise QAPISemError(self.info,
                                "Object %s contains itself" % self.name)
-        if self.members:
+        if self.members is not None:            # already checked
             return
         self.members = False                    # mark as being checked
         seen = OrderedDict()