Method get_classes_used

compat/resource_compat_text.cpp:1500–1613

}

Error ResourceLoaderCompatText::get_classes_used(HashSet<StringName> *r_classes) {
	if (error) {
		return error;
	}

	ignore_resource_parsing = true;

	DummyReadData dummy_read;
	dummy_read.no_placeholders = true;
	VariantParser::ResourceParser rp_new;
	rp_new.ext_func = _parse_ext_resource_dummys;
	rp_new.sub_func = _parse_sub_resource_dummys;
	rp_new.userdata = &dummy_read;

	while (next_tag.name == "ext_resource") {
		error = VariantParserCompat::parse_tag(&stream, lines, error_text, next_tag, &rp_new);

		if (error) {
			_printerr();
			return error;
		}
	}

	while (next_tag.name == "sub_resource" || next_tag.name == "resource") {
		if (next_tag.name == "sub_resource") {
			if (!next_tag.fields.has("type")) {
				error = ERR_FILE_CORRUPT;
				error_text = "Missing 'type' in external resource tag";
				_printerr();
				return error;
			}

			r_classes->insert(next_tag.fields["type"]);

		} else {
			r_classes->insert(next_tag.fields["res_type"]);
		}

		while (true) {
			String assign;
			Variant value;

			error = VariantParserCompat::parse_tag_assign_eof(&stream, lines, error_text, next_tag, assign, value, &rp_new);

			if (error) {
				if (error == ERR_FILE_EOF) {
					return OK;
				}

				_printerr();
				return error;
			}

			if (!assign.is_empty()) {
				continue;
			} else if (!next_tag.name.is_empty()) {
				error = OK;
				break;