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8326404: Assertion error when trying to compile switch with fallthrou…
…gh with pattern Co-authored-by: Jan Lahoda <[email protected]> Reviewed-by: vromero
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| /* | ||
| * Copyright (c) 2024, 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 8326404 | ||
| * @summary Assertion error when trying to compile switch with fallthrough with pattern | ||
| * @compile T8326404.java | ||
| * @run main T8326404 | ||
| */ | ||
| public class T8326404 { | ||
| private static final record R<T>(T a) {} | ||
|
|
||
| public static void main(String[] args) { | ||
| assertEquals(4, run1("")); | ||
| assertEquals(3, run1(new R(""))); | ||
| assertEquals(2, run1(new R(42))); | ||
|
|
||
| assertEquals(2, run1_break1("")); | ||
| assertEquals(1, run1_break1(new R(""))); | ||
| assertEquals(2, run1_break1(new R(42))); | ||
|
|
||
| assertEquals(3, run2("")); | ||
| assertEquals(4, run2(new R(""))); | ||
| assertEquals(2, run2(new R(42))); | ||
|
|
||
| assertEquals(1, run2_break1("")); | ||
| assertEquals(2, run2_break1(new R(""))); | ||
| assertEquals(2, run2_break1(new R(42))); | ||
|
|
||
| assertEquals(2, run3("")); | ||
| assertEquals(4, run3(new R(""))); | ||
| assertEquals(3, run3(new R(42))); | ||
|
|
||
| assertEquals(2, run3_break1("")); | ||
| assertEquals(2, run3_break1(new R(""))); | ||
| assertEquals(1, run3_break1(new R(42))); | ||
| } | ||
|
|
||
| private static int run1(Object o) { | ||
| int i = 0; | ||
| switch (o) { | ||
| case String _: | ||
| i++; | ||
| case R(String _): | ||
| i++; | ||
| case R(Integer _): | ||
| i++; | ||
| default: | ||
| i++; | ||
| } | ||
| return i; | ||
| } | ||
|
|
||
| private static int run1_break1(Object o) { | ||
| int i = 0; | ||
| switch (o) { | ||
| case String s: | ||
| i++; | ||
| case R(String _): | ||
| i++; | ||
| break; | ||
| case R(Integer _): | ||
| i++; | ||
| default: | ||
| i++; | ||
| } | ||
| return i; | ||
| } | ||
|
|
||
| private static int run2(Object o) { | ||
| int i = 0; | ||
| switch (o) { | ||
| case R(String _): | ||
| i++; | ||
| case String _: | ||
| i++; | ||
| case R(Integer _): | ||
| i++; | ||
| default: | ||
| i++; | ||
| } | ||
| return i; | ||
| } | ||
|
|
||
| private static int run2_break1(Object o) { | ||
| int i = 0; | ||
| switch (o) { | ||
| case R(String _): | ||
| i++; | ||
| case String _: | ||
| i++; | ||
| break; | ||
| case R(Integer _): | ||
| i++; | ||
| default: | ||
| i++; | ||
| } | ||
| return i; | ||
| } | ||
|
|
||
| private static int run3(Object o) { | ||
| int i = 0; | ||
| switch (o) { | ||
| case R(String _): | ||
| i++; | ||
| case R(Integer _): | ||
| i++; | ||
| case String _: | ||
| i++; | ||
| default: | ||
| i++; | ||
| } | ||
| return i; | ||
| } | ||
|
|
||
| private static int run3_break1(Object o) { | ||
| int i = 0; | ||
| switch (o) { | ||
| case R(String _): | ||
| i++; | ||
| case R(Integer _): | ||
| i++; | ||
| break; | ||
| case String _: | ||
| i++; | ||
| default: | ||
| i++; | ||
| } | ||
| return i; | ||
| } | ||
|
|
||
| static void assertEquals(int expected, int actual) { | ||
| if (expected != actual) { | ||
| throw new AssertionError("Expected: " + expected + ", but got: " + actual); | ||
| } | ||
| } | ||
| } |