qom: Introduce object_class_is_abstract()
This lets a caller check if an ObjectClass as returned by, e.g.,
object_class_by_name() is instantiatable.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
diff --git a/include/qom/object.h b/include/qom/object.h
index 8e16ea8..48e80ba 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -691,6 +691,14 @@
const char *object_class_get_name(ObjectClass *klass);
/**
+ * object_class_is_abstract:
+ * @klass: The class to obtain the abstractness for.
+ *
+ * Returns: %true if @klass is abstract, %false otherwise.
+ */
+bool object_class_is_abstract(ObjectClass *klass);
+
+/**
* object_class_by_name:
* @typename: The QOM typename to obtain the class for.
*
