/*

 * Copyright (c) 2018, 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 8214031

 * @summary Verify switch expressions embedded in various statements work properly.

 * @compile --enable-preview -source 12 ExpressionSwitchEmbedding.java

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

 */

public class ExpressionSwitchEmbedding {

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

        new ExpressionSwitchEmbedding().run();

    }

    private void run() {

        {

            int i = 6;

            int o = 0;

            while (switch (i) {

                case 1: i = 0; break true;

                case 2: i = 1; break true;

                case 3, 4: i--;

                    if (i == 2 || i == 4) {

                        break switch (i) {

                            case 2 -> true;

                            case 4 -> false;

                            default -> throw new IllegalStateException();

                        };

                    } else {

                        break true;

                    }

                default: i--; break switch (i) {

                    case -1 -> false;

                    case 3 -> true;

                    default -> true;

                };

            }) {

                o++;

            }

            if (o != 6 && i >= 0) {

                throw new IllegalStateException();

            }

        }

        {

            int i = 6;

            int o = 0;

            if (switch (i) {

                case 1: i = 0; break true;

                case 2: i = 1; break true;

                case 3, 4: i--;

                    if (i == 2 || i == 4) {

                        break (switch (i) {

                            case 2 -> 3;

                            case 4 -> 5;

                            default -> throw new IllegalStateException();

                        }) == i + 1;

                    } else {

                        break true;

                    }

                default: i--; break switch (i) {

                    case -1 -> false;

                    case 3 -> true;

                    default -> true;

                };

            }) {

                o++;

            }

            if (o != 1 && i != 5) {

                throw new IllegalStateException();

            }

        }

        {

            int o = 0;

            for (int i = 6; (switch (i) {

                case 1: i = 0; break true;

                case 2: i = 1; break true;

                case 3, 4: i--;

                    if (i == 2 || i == 4) {

                        break switch (i) {

                            case 2 -> true;

                            case 4 -> false;

                            default -> throw new IllegalStateException();

                        };

                    } else {

                        break true;

                    }

                default: i--; break switch (i) {

                    case -1 -> false;

                    case 3 -> true;

                    default -> true;

                };

            }); ) {

                o++;

            }

            if (o != 6) {

                throw new IllegalStateException();

            }

        }

        {

            int i = 6;

            int o = 0;

            do {

                o++;

            } while (switch (i) {

                case 1: i = 0; break true;

                case 2: i = 1; break true;

                case 3, 4: i--;

                    if (i == 2 || i == 4) {

                        break switch (i) {

                            case 2 -> true;

                            case 4 -> false;

                            default -> throw new IllegalStateException();

                        };

                    } else {

                        break true;

                    }

                default: i--; break switch (i) {

                    case -1 -> false;

                    case 3 -> true;

                    default -> true;

                };

            });

            if (o != 6 && i >= 0) {

                throw new IllegalStateException();

            }

        }

    }

}