| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8136421 |
| * @requires vm.jvmci |
| * @library / /test/lib/ |
| * @library ../common/patches |
| * @modules java.base/jdk.internal.misc |
| * @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot |
| * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper |
| * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI |
| * -Djvmci.Compiler=null |
| * compiler.jvmci.compilerToVM.GetImplementorTest |
| */ |
| |
| package compiler.jvmci.compilerToVM; |
| |
| import compiler.jvmci.common.testcases.AbstractClass; |
| import compiler.jvmci.common.testcases.AbstractClassExtender; |
| import compiler.jvmci.common.testcases.DoNotExtendClass; |
| import compiler.jvmci.common.testcases.DoNotImplementInterface; |
| import compiler.jvmci.common.testcases.MultipleImplementer1; |
| import compiler.jvmci.common.testcases.MultipleImplementer2; |
| import compiler.jvmci.common.testcases.MultipleImplementersInterface; |
| import compiler.jvmci.common.testcases.SingleImplementer; |
| import compiler.jvmci.common.testcases.SingleImplementerInterface; |
| import compiler.jvmci.common.testcases.SingleSubclass; |
| import compiler.jvmci.common.testcases.SingleSubclassedClass; |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.Utils; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| import jdk.vm.ci.hotspot.HotSpotResolvedObjectType; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| import java.util.stream.Stream; |
| |
| public class GetImplementorTest { |
| public static void main(String args[]) { |
| GetImplementorTest test = new GetImplementorTest(); |
| for (TestCase tcase : createTestCases()) { |
| test.runTest(tcase); |
| } |
| } |
| |
| private static Set<TestCase> createTestCases() { |
| Set<TestCase> result = new HashSet<>(); |
| Stream.of( |
| SingleSubclass.class, |
| AbstractClassExtender.class, |
| MultipleImplementer2.class, |
| MultipleImplementer1.class, |
| MultipleImplementersInterface.class, |
| DoNotImplementInterface.class, |
| DoNotExtendClass.class, |
| AbstractClass.class, |
| SingleSubclassedClass.class) |
| .forEach(Utils::ensureClassIsLoaded); |
| // an interface with single class implementing it |
| result.add(new TestCase(SingleImplementerInterface.class, |
| SingleImplementer.class)); |
| /* an interface with multiple implementers. According to getImplementor |
| javadoc, an itself should be returned in case of more than one |
| implementor |
| */ |
| result.add(new TestCase(MultipleImplementersInterface.class, |
| MultipleImplementersInterface.class)); |
| // an interface with no implementors |
| result.add(new TestCase(DoNotImplementInterface.class, null)); |
| // an abstract class with extender class |
| result.add(new TestCase(AbstractClass.class, null)); |
| // a simple class, which is not extended |
| result.add(new TestCase(DoNotExtendClass.class, null)); |
| // a usual class, which is extended |
| result.add(new TestCase(SingleSubclassedClass.class, null)); |
| return result; |
| } |
| |
| private void runTest(TestCase tcase) { |
| System.out.println(tcase); |
| HotSpotResolvedObjectType resolvedIface = CompilerToVMHelper |
| .lookupTypeHelper(Utils.toJVMTypeSignature(tcase.anInterface), |
| getClass(), /* resolve = */ true); |
| HotSpotResolvedObjectType resolvedImplementer = CompilerToVMHelper |
| .getImplementor(resolvedIface); |
| HotSpotResolvedObjectType resolvedExpected = null; |
| if (tcase.expectedImplementer != null) { |
| resolvedExpected = CompilerToVMHelper.lookupTypeHelper(Utils |
| .toJVMTypeSignature(tcase.expectedImplementer), |
| getClass(), /* resolve = */ true); |
| } |
| Asserts.assertEQ(resolvedImplementer, resolvedExpected, |
| "Unexpected implementer for " + tcase.anInterface.getName()); |
| } |
| |
| private static class TestCase { |
| public final Class<?> anInterface; |
| public final Class<?> expectedImplementer; |
| |
| public TestCase(Class<?> iface, Class<?> expectedImplementer) { |
| this.anInterface = iface; |
| this.expectedImplementer = expectedImplementer; |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("CASE: interface=%s, expected=%s", |
| anInterface.getName(), |
| expectedImplementer == null |
| ? null |
| : expectedImplementer.getName()); |
| } |
| } |
| } |