| // 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.workaround; |
| |
| import static com.android.tools.r8.utils.codeinspector.CodeMatchers.invokesMethodWithName; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isAbsent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.DescriptorUtils; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import com.google.common.collect.ImmutableList; |
| import java.io.IOException; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class InvokeVirtualToInterfaceVerifyErrorWorkaroundTest extends TestBase { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection parameters() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(A.class) |
| .addProgramClassFileData(getProgramClassFileData()) |
| .addKeepClassAndMembersRules(Main.class) |
| // CameraDevice is not present in rt.jar or android.jar when API<L. |
| .applyIf( |
| parameters.isCfRuntime() || parameters.getApiLevel().isLessThan(AndroidApiLevel.L), |
| testBuilder -> testBuilder.addDontWarn("android.hardware.camera2.CameraDevice")) |
| // CameraDeviceUser can only be merged with A when min API>=L. |
| .addHorizontallyMergedClassesInspector( |
| inspector -> |
| inspector |
| .applyIf( |
| parameters.isDexRuntime() |
| && parameters.getApiLevel().isGreaterThanOrEqualTo(AndroidApiLevel.L), |
| i -> i.assertIsCompleteMergeGroup(A.class, CameraDeviceUser.class)) |
| .assertNoOtherClassesMerged()) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| // CameraDeviceUser.m() can only be inlined when min API>=L. |
| .inspect( |
| inspector -> { |
| if (parameters.isDexRuntime() |
| && parameters.getApiLevel().isGreaterThanOrEqualTo(AndroidApiLevel.L)) { |
| assertThat(inspector.clazz(CameraDeviceUser.class), isAbsent()); |
| } else { |
| ClassSubject cameraDeviceUserClassSubject = inspector.clazz(CameraDeviceUser.class); |
| assertThat(cameraDeviceUserClassSubject, isPresent()); |
| |
| MethodSubject mMethodSubject = |
| cameraDeviceUserClassSubject.uniqueMethodWithName("m"); |
| assertThat(mMethodSubject, isPresent()); |
| assertThat(mMethodSubject, invokesMethodWithName("close")); |
| } |
| }); |
| } |
| |
| private static List<byte[]> getProgramClassFileData() throws IOException { |
| String oldDescriptor = DescriptorUtils.javaTypeToDescriptor(CameraDevice.class.getTypeName()); |
| String newDescriptor = "Landroid/hardware/camera2/CameraDevice;"; |
| return ImmutableList.of( |
| transformer(Main.class) |
| .replaceClassDescriptorInMembers(oldDescriptor, newDescriptor) |
| .replaceClassDescriptorInMethodInstructions(oldDescriptor, newDescriptor) |
| .transform(), |
| transformer(CameraDeviceUser.class) |
| .replaceClassDescriptorInMembers(oldDescriptor, newDescriptor) |
| .replaceClassDescriptorInMethodInstructions(oldDescriptor, newDescriptor) |
| .transform()); |
| } |
| |
| // The following classes are transformed to use android.hardware.camera2.CameraDevice. |
| static class Main { |
| |
| public static void main(String[] args) { |
| int minApi = args.length; |
| if (minApi >= 21) { |
| new CameraDeviceUser().m(getCameraDevice()); |
| } else { |
| System.out.println(new A()); |
| } |
| } |
| |
| // @Keep |
| static CameraDevice getCameraDevice() { |
| return null; |
| } |
| } |
| |
| static class A {} |
| |
| static class CameraDeviceUser { |
| |
| public void m(CameraDevice cd) { |
| if (cd != null) { |
| cd.close(); |
| } |
| } |
| } |
| |
| abstract static class CameraDevice { |
| |
| abstract void close(); |
| } |
| } |