121 lines
3.8 KiB
Java
121 lines
3.8 KiB
Java
/*
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* Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8206986
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* @summary Verify behavior of various kinds of breaks.
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* @compile ExpressionSwitchBreaks1.java
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* @run main ExpressionSwitchBreaks1
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*/
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import java.util.Objects;
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import java.util.function.Supplier;
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public class ExpressionSwitchBreaks1 {
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public static void main(String... args) {
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new ExpressionSwitchBreaks1().run();
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}
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private void run() {
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check(print1(0, 0), "0-0");
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check(print1(0, 1), "0-1");
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check(print1(0, -1), "0-X");
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check(print1(-1, -1), "X");
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check(print2(0, 0, 0), "0-0-0");
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check(print2(0, 0, 1), "0-0-1");
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check(print2(0, 0, 2), "0-0-2");
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check(print2(0, 0, -1), "0-0-X");
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check(print2(0, 1, -1), "0-1");
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check(print2(0, -1, -1), "0-X");
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check(print2(1, -1, -1), "1");
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check(print2(2, 5, 5), "2-X-5");
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check(print2(-11, -1, -1), "X");
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}
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private String print1(int i, int j) {
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switch (i) {
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case 0:
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return switch (j) {
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case 0:
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if (true) yield "0-0";
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case 1:
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yield "0-1";
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default:
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yield "0-X";
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};
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default: return "X";
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}
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}
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private String print2(int i, int j, int k) {
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return switch (i) {
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case 0:
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String r;
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OUTER: switch (j) {
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case 0:
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String res;
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INNER: switch (k) {
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case 0: res = "0-0-0"; break;
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case 1: res = "0-0-1"; break;
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case 2: res = "0-0-2"; break INNER;
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default: r = "0-0-X"; break OUTER;
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}
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r = res;
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break;
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case 1:
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r = "0-1";
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break;
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default:
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r = "0-X";
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break;
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}
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yield r;
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case 1:
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yield "1";
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case 2:
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LOP: while (j-- > 0) {
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if (k == 5) {
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k--;
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continue;
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}
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break LOP;
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}
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Supplier<String> getter = () -> { return "2-X-5"; };
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yield getter.get();
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default:
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yield "X";
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};
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}
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private void check(String result, String expected) {
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if (!Objects.equals(result, expected)) {
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throw new AssertionError("Unexpected result: " + result);
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}
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}
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enum T {
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A, B;
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}
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}
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