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/*
* 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);
}
}
}
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