64 lines
2.5 KiB
Java
64 lines
2.5 KiB
Java
/*
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* Copyright (c) 2024, 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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* @compile StringConcatWithAssignments.java
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* @run main StringConcatWithAssignments
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* @compile -XDstringConcat=inline StringConcatWithAssignments.java
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* @run main StringConcatWithAssignments
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* @compile -XDstringConcat=indy StringConcatWithAssignments.java
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* @run main StringConcatWithAssignments
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* @compile -XDstringConcat=indyWithConstants StringConcatWithAssignments.java
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* @run main StringConcatWithAssignments
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*/
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import java.util.Objects;
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import java.util.function.Supplier;
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public class StringConcatWithAssignments {
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public static void main(String[] args) {
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StringConcatWithAssignments instance = new StringConcatWithAssignments();
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assertEquals("nulltrue", instance.assignment());
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assertEquals("nulltrue", instance.invocation());
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}
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private String assignment() {
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boolean b;
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return ((((b = true) ? null : null) + "") + b);
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}
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private String invocation() {
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StringBuilder sideEffect = new StringBuilder();
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Supplier<Boolean> provider = () -> {
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sideEffect.append(true);
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return true;
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};
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return (((provider.get() ? null : null) + "") + sideEffect.toString());
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}
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private static void assertEquals(Object o1, Object o2) {
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if (!Objects.equals(o1, o2)) {
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throw new AssertionError("Expected that '" + o1 + "' and " +
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"'" + o2 + "' are equal.");
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}
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}
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}
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