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8314226: Series of colon-style fallthrough switch cases with guards c…
…ompiled incorrectly
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| /* | ||
| * Copyright (c) 2023, 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 8314226 | ||
| * @summary Series of colon-style fallthrough switch cases with guards compiled incorrectly | ||
| * @enablePreview | ||
| * @compile T8314226.java | ||
| * @run main T8314226 | ||
| */ | ||
|
|
||
| public class T8314226 { | ||
| int multipleGuardedCases(Object obj) { | ||
| switch (obj) { | ||
| case Integer _ when ((Integer) obj) > 0: | ||
| case String _ when !((String) obj).isEmpty(): | ||
| return 1; | ||
| default: | ||
| return -1; | ||
| } | ||
| } | ||
|
|
||
| int multipleGuardedCasesMultiplePatterns(Object obj) { | ||
| switch (obj) { | ||
| case String _ when !((String) obj).isEmpty(): | ||
| case Integer _, Byte _ when ((Number) obj).intValue() > 0: | ||
| return 1; | ||
| default: | ||
| return -1; | ||
| } | ||
| } | ||
|
|
||
| int singleGuardedCase(Object obj) { | ||
| switch (obj) { | ||
| case String _ when !((String) obj).isEmpty(): | ||
| return 1; | ||
| default: | ||
| return -1; | ||
| } | ||
| } | ||
|
|
||
| public static void main(String[] args) { | ||
| new T8314226().run(); | ||
| } | ||
|
|
||
| private void run() { | ||
| assertEquals(1, multipleGuardedCases(42)); | ||
| assertEquals(1, multipleGuardedCases("test")); | ||
| assertEquals(-1, multipleGuardedCases("")); | ||
| assertEquals(1, multipleGuardedCasesMultiplePatterns((byte) 42)); | ||
| assertEquals(1, multipleGuardedCasesMultiplePatterns("test")); | ||
| assertEquals(-1, multipleGuardedCasesMultiplePatterns("")); | ||
| assertEquals(-1, singleGuardedCase(42)); | ||
| assertEquals(1, singleGuardedCase("test")); | ||
| assertEquals(-1, singleGuardedCase("")); | ||
| } | ||
|
|
||
| void assertEquals(int expected, int actual) { | ||
| if (expected != actual) { | ||
| throw new AssertionError("Expected: " + expected + ", but got: " + actual); | ||
| } | ||
| } | ||
| } |