Method poll

compat/resource_format_xml.cpp:1260–1435

	return resource;
}
Error ResourceInteractiveLoaderXML::poll() {
	if (error != OK)
		return error;

	bool exit;
	Tag *tag = parse_tag(&exit);

	if (!tag) {
		error = ERR_FILE_CORRUPT;
		if (!exit) { // shouldn't have exited
			ERR_FAIL_V(error);
		}
		error = ERR_FILE_EOF;
		return error;
	}

	Ref<Resource> res;
	//Object *obj=NULL;

	bool main;

	if (tag->name == "ext_resource") {
		error = ERR_FILE_CORRUPT;
		ERR_FAIL_COND_V_MSG(!tag->args.has("path"), ERR_FILE_CORRUPT, local_path + ":" + itos(get_current_line()) + ": <ext_resource> missing 'path' field.");

		String type = "Resource";
		if (tag->args.has("type"))
			type = tag->args["type"];

		String path = tag->args["path"];

		ERR_FAIL_COND_V_MSG(path.begins_with("local://"), ERR_FILE_CORRUPT, local_path + ":" + itos(get_current_line()) + ": <ext_resource> can't use a local path, this is a bug?.");

		if (path.find("://") == -1 && path.is_relative_path()) {
			// path is relative to file being loaded, so convert to a resource path
			path = GDRESettings::get_singleton()->localize_path(local_path.get_base_dir().path_join(path));
		}

		if (remaps.has(path)) {
			path = remaps[path];
		}

		int er_idx = tag->args.has("index") ? tag->args["index"].to_int() : -1;

		Ref<Resource> res = load_external_resource(path, type, er_idx);

		if (res.is_null()) {
			if (ResourceLoader::get_abort_on_missing_resources()) {
				ERR_FAIL_V_MSG(error, local_path + ":" + itos(get_current_line()) + ": <ext_resource> referenced nonexistent resource at: " + path);
			} else {
				ResourceLoader::notify_dependency_error(local_path, path, type);
			}
		} else {
			resource_cache.push_back(res);
		}

		if (tag->args.has("index")) {
			ExtResource er;