This mimics what we do in object_dynamic_cast_assert.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id:
1368188203-3407-3-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
ObjectClass *object_class_dynamic_cast(ObjectClass *class,
const char *typename)
{
- TypeImpl *target_type = type_get_by_name(typename);
- TypeImpl *type = class->type;
ObjectClass *ret = NULL;
+ TypeImpl *target_type;
+ TypeImpl *type;
+ if (!class) {
+ return NULL;
+ }
+
+ type = class->type;
+ target_type = type_get_by_name(typename);
if (!target_type) {
/* target class type unknown, so fail the cast */
return NULL;
{
ObjectClass *ret = object_class_dynamic_cast(class, typename);
- if (!ret) {
+ if (!ret && class) {
fprintf(stderr, "Object %p is not an instance of type %s\n",
class, typename);
abort();