117 lines
2.8 KiB
Java
117 lines
2.8 KiB
Java
/*
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* Copyright (c) 2019, 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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* @summary Verify that definite assignment works (legal code)
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* @compile DefiniteAssignment1.java
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* @run main DefiniteAssignment1
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*/
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public class DefiniteAssignment1 {
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public static void main(String[] args) {
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int a = 0;
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{
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int x;
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switch(a) {
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case 0: x = 0; break;
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default: x = 1; break;
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}
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if (x != 0)
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throw new IllegalStateException("Unexpected value.");
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}
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{
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int x;
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switch(a) {
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case 1: x = 1; break;
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case 0:
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default: x = 0; break;
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}
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if (x != 0)
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throw new IllegalStateException("Unexpected value.");
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}
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{
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int x;
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switch(a) {
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case 1: x = 1; break;
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case 0:
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default: x = 0;
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}
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if (x != 0)
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throw new IllegalStateException("Unexpected value.");
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}
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{
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int x;
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switch(a) {
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case 0 -> x = 0;
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default -> x = 1;
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}
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if (x != 0)
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throw new IllegalStateException("Unexpected value.");
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}
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{
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int x;
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try {
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switch(a) {
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case 1: x = 1; break;
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case 0:
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default: throw new UnsupportedOperationException();
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}
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throw new IllegalStateException("Unexpected value: " + x);
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} catch (UnsupportedOperationException ex) {
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//OK
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}
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}
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{
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int x;
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switch(a) {
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case 0 -> x = 0;
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default -> throw new IllegalStateException();
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}
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if (x != 0)
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throw new IllegalStateException("Unexpected value.");
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}
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}
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enum E {
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A, B, C;
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}
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}
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