Not all instances have a TypeNode associated (e.g. GstEvent), so lets check if node is available
before trying to use it.
This crash can be easily reproduced by creating an event with gst_event_new_eos and using
G_IS_OBJECT on the event instance.
https://bugzilla.gnome.org/show_bug.cgi?id=733982
g_type_check_instance_is_fundamentally_a (GTypeInstance *type_instance,
GType fundamental_type)
{
+ TypeNode *node;
if (!type_instance || !type_instance->g_class)
return FALSE;
- return NODE_FUNDAMENTAL_TYPE(lookup_type_node_I (type_instance->g_class->g_type)) == fundamental_type;
+ node = lookup_type_node_I (type_instance->g_class->g_type);
+ return node && (NODE_FUNDAMENTAL_TYPE(node) == fundamental_type);
}
gboolean