/*

 * Copyright (c) 2017, 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

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 */

/*

 * @test

 * @bug 8206986

 * @summary Verify behavior of various kinds of breaks.

 * @run main/othervm --enable-preview ExpressionSwitchBreaks1

 */

import java.util.Objects;

import java.util.function.Supplier;

public class ExpressionSwitchBreaks1 {

    public static void main(String... args) {

        new ExpressionSwitchBreaks1().run();

    }

    private void run() {

        check(print1(0, 0), "0-0");

        check(print1(0, 1), "0-1");

        check(print1(0, -1), "0-X");

        check(print1(-1, -1), "X");

        check(print2(0, 0, 0), "0-0-0");

        check(print2(0, 0, 1), "0-0-1");

        check(print2(0, 0, 2), "0-0-2");

        check(print2(0, 0, -1), "0-0-X");

        check(print2(0, 1, -1), "0-1");

        check(print2(0, -1, -1), "0-X");

        check(print2(1, -1, -1), "1");

        check(print2(2, 5, 5), "2-X-5");

        check(print2(-11, -1, -1), "X");

    }

    private String print1(int i, int j) {

        switch (i) {

            case 0:

                return switch (j) {

                    case 0:

                        if (true) break "0-0";

                    case 1:

                        break "0-1";

                    default:

                        break "0-X";

                };

            default: return "X";

        }

    }

    private String print2(int i, int j, int k) {

        return switch (i) {

            case 0:

                String r;

                OUTER: switch (j) {

                    case 0:

                        String res;

                        INNER: switch (k) {

                            case 0: res = "0-0-0"; break;

                            case 1: res = "0-0-1"; break;

                            case 2: res = "0-0-2"; break INNER;

                            default: r = "0-0-X"; break OUTER;

                        }

                        r = res;

                        break;

                    case 1:

                        r = "0-1";

                        break;

                    default:

                        r = "0-X";

                        break;

                }

                break r;

            case 1:

                break "1";

            case 2:

                LOP: while (j-- > 0) {

                    if (k == 5) {

                        k--;

                        continue;

                    }

                    break LOP;

                }

                Supplier<String> getter = () -> { return "2-X-5"; };

                break getter.get();

            default:

                break "X";

        };

    }

    private void check(String result, String expected) {

        if (!Objects.equals(result, expected)) {

            throw new AssertionError("Unexpected result: " + result);

        }

    }

    enum T {

        A, B;

    }

}