83 lines
2.4 KiB
Java
83 lines
2.4 KiB
Java
|
/*
|
||
|
|
* Copyright (c) 2018, 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 8206986
|
||
|
|
* @summary Verify various corner cases with nested switch expressions.
|
||
|
|
* @compile --enable-preview -source 12 ExpressionSwitchBugs.java
|
||
|
|
* @run main/othervm --enable-preview ExpressionSwitchBugs
|
||
|
|
*/
|
||
|
|
|
||
|
|
public class ExpressionSwitchBugs {
|
||
|
|
public static void main(String... args) {
|
||
|
|
new ExpressionSwitchBugs().testNested();
|
||
|
|
}
|
||
|
|
|
||
|
|
private void testNested() {
|
||
|
|
int i = 0;
|
||
|
|
check(42, id(switch (42) {
|
||
|
|
default: i++; break 42;
|
||
|
|
}));
|
||
|
|
i = 0;
|
||
|
|
check(43, id(switch (42) {
|
||
|
|
case 42: while (i == 0) {
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
break 42 + i;
|
||
|
|
default: i++; break 42;
|
||
|
|
}));
|
||
|
|
i = 0;
|
||
|
|
check(42, id(switch (42) {
|
||
|
|
case 42: if (i == 0) {
|
||
|
|
break 42;
|
||
|
|
}
|
||
|
|
default: i++; break 43;
|
||
|
|
}));
|
||
|
|
i = 0;
|
||
|
|
check(42, id(switch (42) {
|
||
|
|
case 42: if (i == 0) {
|
||
|
|
break 41 + switch (0) {
|
||
|
|
case 0 -> 1;
|
||
|
|
default -> -1;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
default: i++; break 43;
|
||
|
|
}));
|
||
|
|
}
|
||
|
|
|
||
|
|
private int id(int i) {
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
|
||
|
|
private int id(Object o) {
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void check(int actual, int expected) {
|
||
|
|
if (actual != expected) {
|
||
|
|
throw new AssertionError("Unexpected result: " + actual);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|