120 lines
4.1 KiB
Java
120 lines
4.1 KiB
Java
/*
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* Copyright (c) 2015, 2020, 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 8044537 8200301 8238358
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* @summary Checking ACC_SYNTHETIC flag is generated for bridge method
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* generated for lambda expressions and method references.
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* @enablePreview
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.main
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* java.base/jdk.internal.classfile.impl
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* @library /tools/lib /tools/javac/lib ../lib
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* @build toolbox.ToolBox InMemoryFileManager TestResult TestBase
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* @build SyntheticTestDriver ExpectedClass ExpectedClasses
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* @compile -XDdeduplicateLambdas=false BridgeMethodsForLambdaTest.java
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* @run main SyntheticTestDriver BridgeMethodsForLambdaTest
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*/
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import java.util.Comparator;
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import java.util.stream.IntStream;
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/**
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* Synthetic members:
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* 1. inner class for Inner1.
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* 2. method for () -> {} in Inner1
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* 3. method for () -> {} in Inner2
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* 4. method for super::function()
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* 5. method reference to vararg method.
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* 6. method reference to array's method.
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* 7. constructors for Inner1 and Inner2.
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*/
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@ExpectedClass(className = "BridgeMethodsForLambdaTest",
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expectedMethods = {"<init>()", "<clinit>()", "function(java.lang.Integer[])"},
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expectedNumberOfSyntheticMethods = 3)
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@ExpectedClass(className = "BridgeMethodsForLambdaTest$Inner1",
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expectedMethods = {"<init>(BridgeMethodsForLambdaTest)", "function()", "run()"},
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expectedFields = "lambda1",
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expectedNumberOfSyntheticMethods = 1)
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@ExpectedClass(className = "BridgeMethodsForLambdaTest$Inner2",
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expectedMethods = {"<init>()", "staticFunction()"},
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expectedFields = "lambda1",
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expectedNumberOfSyntheticMethods = 1)
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@ExpectedClass(className = "BridgeMethodsForLambdaTest$Inner3",
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expectedMethods = {"<init>(BridgeMethodsForLambdaTest)", "function()"})
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@ExpectedClass(className = "BridgeMethodsForLambdaTest$Inner4",
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expectedMethods = {"<init>(BridgeMethodsForLambdaTest)", "function()"},
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expectedNumberOfSyntheticMethods = 1)
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public class BridgeMethodsForLambdaTest {
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private class Inner1 implements Runnable {
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private Inner1() {
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}
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private Runnable lambda1 = () -> {
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};
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private void function() {
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}
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@Override
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public void run() {
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}
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}
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private static class Inner2 {
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private Runnable lambda1 = () -> {
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};
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private static void staticFunction() {
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}
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}
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private class Inner3 {
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public void function() {
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}
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}
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private class Inner4 extends Inner3 {
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@Override
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public void function() {
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Runnable r = super::function;
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}
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}
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private static int function(Integer...vararg) {
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return 0;
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}
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{
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Inner1 inner = new Inner1();
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Runnable l1 = inner::function;
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Runnable l2 = Inner1::new;
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inner.lambda1 = inner::function;
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Comparator<Integer> c = BridgeMethodsForLambdaTest::function;
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IntStream.of(2).mapToObj(int[]::new);
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}
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static {
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Inner2 inner = new Inner2();
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Runnable l1 = Inner2::staticFunction;
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}
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}
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