90 lines
2.6 KiB
Java
90 lines
2.6 KiB
Java
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/*
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* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8262891
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* @summary Check the pattern domination error are reported correctly.
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* @compile/fail/ref=Domination.out -XDrawDiagnostics --enable-preview -source ${jdk.version} Domination.java
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*/
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public class Domination {
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int testDominatesError1(Object o) {
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switch (o) {
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case CharSequence cs: return 0;
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case String s: return 1;
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case Object x: return -1;
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}
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}
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int testDominatesError2(Object o) {
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switch (o) {
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case CharSequence cs: return 0;
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case String s && s.isEmpty(): return 1;
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case Object x: return -1;
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}
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}
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int testDominatesError3(Object o) {
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switch (o) {
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case CharSequence cs && true: return 0;
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case String s && s.isEmpty(): return 1;
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case Object x: return -1;
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}
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}
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int testNotDominates1(Object o) {
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switch (o) {
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case CharSequence cs && cs.length() == 0: return 0;
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case String s: return 1;
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case Object x: return -1;
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}
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}
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int testDominatesStringConstant(String str) {
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switch (str) {
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case String s: return 1;
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case "": return -1;
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}
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}
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int testDominatesIntegerConstant(Integer i) {
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switch (i) {
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case Integer j: return 1;
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case 0: return -1;
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}
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}
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int testDominatesEnumConstant() {
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enum E {
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A, B;
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}
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E e = E.A;
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switch (e) {
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case E d: return 1;
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case A: return -1;
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}
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}
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}
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