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/*
* Copyright (c) 2021, 2022, 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 8262891 8290709
* @summary Check the pattern domination error are reported correctly.
* @compile/fail/ref=Domination.out -XDrawDiagnostics Domination.java
*/
public class Domination {
int testDominatesError1(Object o) {
switch (o) {
case CharSequence cs: return 0;
case String s: return 1;
case Object x: return -1;
}
}
int testDominatesError2(Object o) {
switch (o) {
case CharSequence cs: return 0;
case String s when s.isEmpty(): return 1;
case Object x: return -1;
}
}
int testDominatesError3(Object o) {
switch (o) {
case CharSequence cs when true: return 0;
case String s when s.isEmpty(): return 1;
case Object x: return -1;
}
}
int testNotDominates1(Object o) {
switch (o) {
case CharSequence cs when cs.length() == 0: return 0;
case String s: return 1;
case Object x: return -1;
}
}
int testDominatesStringConstant(String str) {
switch (str) {
case String s: return 1;
case "": return -1;
}
}
int testDominatesStringConstant2(String str) {
switch (str) {
case String s when s.isEmpty(): return 1;
case "": return -1;
}
}
int testDominatesStringConstant3(String str) {
switch (str) {
case String s when !s.isEmpty(): return 1;
case "": return -1;
}
}
int testDominatesIntegerConstant(Integer i) {
switch (i) {
case Integer j: return 1;
case 0: return -1;
}
}
int testDominatesIntegerConstant2(Integer i) {
switch (i) {
case Integer j when j == 0: return 1;
case 0: return -1;
}
}
int testDominatesIntegerConstant3(Integer i) {
switch (i) {
case Integer j when j == 1: return 1;
case 0: return -1;
}
}
int testDominatesEnumConstant() {
enum E {
A, B;
}
E e = E.A;
switch (e) {
case E d: return 1;
case A: return -1;
}
}
int testDominatesEnumConstant2() {
enum E {
A, B;
}
E e = E.A;
switch (e) {
case E d when d == E.A: return 1;
case A: return -1;
}
}
int testDominatesEnumConstant3() {
enum E {
A, B;
}
E e = E.A;
switch (e) {
case E d when d == E.B: return 1;
case A: return -1;
}
}
int testRecordPatternsDominated1() {
record R(int a) {}
Object o = null;
switch (o) {
case R r: return 1;
case R(int a): return -1;
}
}
int testRecordPatternsDominated2() {
record R(int a) {}
Object o = null;
switch (o) {
case R(int a): return 1;
case R(int a): return -1;
}
}
int testRecordPatternsDominated3() {
record R(int a) {}
Object o = null;
switch (o) {
case R r when guard(): return 1;
case R(int a): return -1;
}
}
int testRecordPatternsDominated4() {
record R(int a) {}
Object o = null;
switch (o) {
case R(int a) when guard(): return 1;
case R(int a): return -1;
}
}
boolean guard() {
return false;
}
int testRecordPatternsDominated5() {
record R(int a) {}
Object o = null;
switch (o) {
case R r: return 1;
case R(int a): return -1;
}
}
int testRecordPatternsDominated6() {
record R(int a) {}
Object o = null;
switch (o) {
case R(int a): return 1;
case R(int a): return -1;
}
}
int testRecordPatternsDominated7() {
record R(int a) {}
Object o = null;
switch (o) {
case R r when true: return 1;
case R(int a): return -1;
}
}
int testRecordPatternsDominated8() {
record R(int a) {}
Object o = null;
switch (o) {
case R(int a) when true: return 1;
case R(int a): return -1;
}
}
int testNotDominates2(Integer x) {
switch (x) {
case Integer i: return i;
case null : return -1;
}
}
}
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