| // Copyright (c) 2021, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| package com.android.tools.r8.resolution; |
| |
| import static com.android.tools.r8.references.Reference.classFromClass; |
| import static com.android.tools.r8.references.Reference.methodFromMethod; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| |
| import com.android.tools.r8.TestAppViewBuilder; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.graph.AppInfoWithClassHierarchy; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.MethodResolutionResult; |
| import com.android.tools.r8.references.MethodReference; |
| import com.android.tools.r8.references.Reference; |
| import java.lang.invoke.MethodHandle; |
| import java.util.Collections; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class InvokePolymorphicResolutionTest extends TestBase { |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withNoneRuntime().build(); |
| } |
| |
| public InvokePolymorphicResolutionTest(TestParameters parameters) { |
| parameters.assertNoneRuntime(); |
| } |
| |
| @Test |
| public void testResolution() throws Exception { |
| // Note: this could just as well resolve without liveness. |
| AppView<? extends AppInfoWithClassHierarchy> appView = |
| TestAppViewBuilder.builder() |
| .addLibraryFiles(ToolHelper.getJava8RuntimeJar()) |
| .buildWithLiveness(); |
| |
| // An exact resolution will find invokeExact. |
| MethodReference invokeExact = |
| methodFromMethod(MethodHandle.class.getMethod("invokeExact", Object[].class)); |
| MethodResolutionResult resolution1 = |
| appView |
| .appInfo() |
| .resolveMethodLegacy(buildMethod(invokeExact, appView.dexItemFactory()), false); |
| assertFalse(resolution1.isFailedResolution()); |
| |
| // An inexact signature should also find invokeExact. |
| MethodReference inexactInvokeExact = |
| Reference.method( |
| invokeExact.getHolderClass(), |
| invokeExact.getMethodName(), |
| Collections.singletonList(Reference.array(classFromClass(getClass()), 1)), |
| invokeExact.getReturnType()); |
| MethodResolutionResult resolution2 = |
| appView |
| .appInfo() |
| .resolveMethodLegacy(buildMethod(inexactInvokeExact, appView.dexItemFactory()), false); |
| assertFalse(resolution2.isFailedResolution()); |
| |
| // The should both be the same MethodHandle.invokeExact method. |
| assertEquals(resolution1.getSingleTarget(), resolution2.getSingleTarget()); |
| } |
| } |