71 lines
2.0 KiB
Java
71 lines
2.0 KiB
Java
/*
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* Copyright (c) 2014, 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 8048121
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* @summary javac complex method references: revamp and simplify
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*
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* Make sure that the method reference receiver is evaluated exactly once
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* even in this bridging case.
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*/
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public class MethodRefSingleRefEvalBridge {
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interface SAM {
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int m();
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}
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class ZZ {
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// private to force bridging
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private int four() { return 4; }
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}
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static int count = 0;
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ZZ azz = new ZZ();
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static void assertEqual(int expected, int got) {
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if (got != expected)
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throw new AssertionError("Expected " + expected + " got " + got);
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}
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public static void main(String[] args) {
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new MethodRefSingleRefEvalBridge().test();
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}
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ZZ check() {
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count++;
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return azz;
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}
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void test() {
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count = 0;
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SAM s = check()::four;
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assertEqual(1, count);
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count = 0;
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assertEqual(4, s.m());
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assertEqual(0, count);
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}
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}
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