/*

 * @test /nodynamiccopyright/

 * @bug 8206986

 * @summary Check behavior for invalid breaks.

 * @compile/fail/ref=ExpressionSwitchBreaks2.out -XDrawDiagnostics --enable-preview -source ${jdk.version} ExpressionSwitchBreaks2.java

 */

public class ExpressionSwitchBreaks2 {

    private String print(int i, int j) {

        LOOP: while (true) {

        OUTER: switch (i) {

            case 0:

                return switch (j) {

                    case 0:

                        yield "0-0";

                    case 1:

                        break ; //error: missing value

                    case 2:

                        break OUTER; //error: jumping outside of the switch expression

                    case 3: {

                        int x = -1;

                        x: switch (i + j) {

                            case 0: break x;

                        }

                        yield "X";

                    }

                    case 4: return "X"; //error: no returns from inside of the switch expression

                    case 5: continue;   //error: no continue out of the switch expression

                    case 6: continue LOOP; //error: dtto, but with a label

                    case 7: continue UNKNOWN; //error: unknown label

                    default: {

                        String x = "X";

                        x: switch (i + j) {

                            case 0: yield ""; //error: cannot yield from switch expression that is not immediatelly enclosing

                        }

                        yield "X";

                    }

                };

            case 1:

                yield "1" + undef; //error: complex value and no switch expression

        }

        }

        j: print(switch (i) {

            case 0: yield 0;

            default: break j;

        }, 0);

        j2: print(switch (i) {

            case 0: yield 0;

            default: break j2;

        }, 0);

        return null;

    }

}