/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

function main(): int {
	let a: int = 2;
	label: switch (a) {
		case 1:
			return 1;
		case 2:
			a = 3; // fallthrough
		default:
			break label;
	}
	return 0;
}

/* @@? 21:3 Warning Warning: Possible fall-through into case  */