[Qemu-devel] [PATCH v9 21/27] qapi: Factor out QAPISchemaObjectType.check_clash()

[Eric Blake <eblake@redhat.com>]

Consolidate two common sequences of clash detection into a
new QAPISchemaObjectType.check_clash() helper method.

No change to generated code.

Signed-off-by: Eric Blake <eblake@redhat.com>

---
v9: new patch, split off from v8 7/17
---
 scripts/qapi.py | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/scripts/qapi.py b/scripts/qapi.py
index 6653c70..843e364 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -980,11 +980,7 @@ class QAPISchemaObjectType(QAPISchemaType):
         seen = OrderedDict()
         if self._base_name:
             self.base = schema.lookup_type(self._base_name)
-            assert isinstance(self.base, QAPISchemaObjectType)
-            assert not self.base.variants       # not implemented
-            self.base.check(schema)
-            for m in self.base.members:
-                m.check_clash(seen)
+            self.base.check_clash(schema, seen)
         for m in self.local_members:
             m.check(schema)
             m.check_clash(seen)
@@ -993,6 +989,12 @@ class QAPISchemaObjectType(QAPISchemaType):
             self.variants.check(schema, seen)
             assert self.variants.tag_member in self.members

+    def check_clash(self, schema, seen):
+        self.check(schema)
+        assert not self.variants       # not implemented
+        for m in self.members:
+            m.check_clash(seen)
+
     def is_implicit(self):
         # See QAPISchema._make_implicit_object_type()
         return self.name[0] == ':'
@@ -1071,11 +1073,7 @@ class QAPISchemaObjectTypeVariant(QAPISchemaObjectTypeMember):
         if seen:
             # This variant is used within a union; ensure each qapi member
             # field does not collide with the union's non-variant members.
-            assert isinstance(self.type, QAPISchemaObjectType)
-            assert not self.type.variants       # not implemented
-            self.type.check(schema)
-            for m in self.type.members:
-                m.check_clash(seen)
+            self.type.check_clash(schema, seen)

     # This function exists to support ugly simple union special cases
     # TODO get rid of them, and drop the function
-- 
2.4.3