/*
 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 8206986 8226510
 * @summary Verify than a switch that does not yield a value is rejected.
 * @compile/fail/ref=EmptySwitch.out --enable-preview -source ${jdk.version} -XDrawDiagnostics -XDshould-stop.at=FLOW EmptySwitch.java
 */

public class EmptySwitch {
    private void print(EmptySwitchEnum t) {
        (switch (t) {
        }).toString();
        (switch (t) {
            default -> throw new IllegalStateException();
        }).toString();
        (switch (t) {
            default: throw new IllegalStateException();
        }).toString();
        (switch (0) {
            case 0: yield "";
            default:
        }).toString();
        (switch (0) {
            case 0 -> { yield ""; }
            default -> { }
        }).toString();
    }

    enum EmptySwitchEnum {
    }
}