test/langtools/tools/javac/switchexpr/ExpressionSwitchInExpressionSwitch.java
author darcy
Thu, 21 Feb 2019 10:29:16 -0800
changeset 53878 4584d0331318
parent 53023 6879069d9d94
child 55306 ea43db53de91
permissions -rw-r--r--
8219254: Update explicit uses of latest source/target in langtools tests to a property 8219256: Update javac diags tests to use properties Reviewed-by: jjg, jlahoda, darcy, iignatyev Contributed-by: joe.darcy@oracle.com, jonathan.gibbons@oracle.com

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
 * @test
 * @bug 8206986
 * @summary Check switch expressions embedded in switch expressions.
 * @compile --enable-preview -source ${jdk.version} ExpressionSwitchInExpressionSwitch.java
 * @run main/othervm --enable-preview ExpressionSwitchInExpressionSwitch
 */

public class ExpressionSwitchInExpressionSwitch {
    public static void main(String[] args) {

        int j = 42;
        int i = switch (j) {
            default -> (switch (j) { default -> 0; } )+1;
        };
        if (i!=1) {
            throw new AssertionError("Unexpected result: " + i);
        }
        i = switch (j) {
            default -> {
                int k = switch (j) {
                    default -> {
                        break 42;
                    }
                };
                System.out.println("didn't break to the top level");
                break 43;
            }
        };
        if (i!=43) {
            throw new AssertionError("Unexpected result: " + i);
        }
    }
}