| // Copyright (c) 2020, 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.ir.optimize.devirtualize; |
| |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NoVerticalClassMerging; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.TestRunResult; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class PackagePrivateOverrideDeVirtualizerTest extends TestBase { |
| |
| private final TestParameters parameters; |
| private final String[] EXPECTED = new String[] {"SubViewModel.clear()", "ViewModel.clear()"}; |
| private final String[] EXPECTED_DALVIK = |
| new String[] {"SubViewModel.clear()", "SubViewModel.clear()"}; |
| private final String NEW_DESCRIPTOR = "Lfoo/bar/baz/SubViewModel;"; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public PackagePrivateOverrideDeVirtualizerTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testRuntime() throws Exception { |
| testForRuntime(parameters) |
| .addProgramClasses(ViewModel.class) |
| .addProgramClassFileData( |
| getSubViewModelInAnotherPackage(), getRewrittenSubViewModelInMain()) |
| .run(parameters.getRuntime(), Main.class) |
| .apply(this::assertSuccessOutput); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(ViewModel.class) |
| .addProgramClassFileData( |
| getSubViewModelInAnotherPackage(), getRewrittenSubViewModelInMain()) |
| .addKeepMainRule(Main.class) |
| .setMinApi(parameters.getApiLevel()) |
| .enableInliningAnnotations() |
| .enableNoVerticalClassMergingAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .run(parameters.getRuntime(), Main.class) |
| .apply(this::assertSuccessOutput); |
| } |
| |
| private byte[] getSubViewModelInAnotherPackage() throws Exception { |
| return transformer(SubViewModel.class).setClassDescriptor(NEW_DESCRIPTOR).transform(); |
| } |
| |
| private byte[] getRewrittenSubViewModelInMain() throws Exception { |
| return transformer(Main.class) |
| .replaceClassDescriptorInMethodInstructions(descriptor(SubViewModel.class), NEW_DESCRIPTOR) |
| .transform(); |
| } |
| |
| private void assertSuccessOutput(TestRunResult<?> result) { |
| if (parameters.isDexRuntime() && parameters.getDexRuntimeVersion().isDalvik()) { |
| result.assertSuccessWithOutputLines(EXPECTED_DALVIK); |
| } else { |
| result.assertSuccessWithOutputLines(EXPECTED); |
| } |
| } |
| |
| @SuppressWarnings("override") /* after changing the package the clear method is not overridden */ |
| @NoVerticalClassMerging |
| public static class ViewModel { |
| |
| @NeverInline |
| void clear() { |
| System.out.println("ViewModel.clear()"); |
| } |
| } |
| |
| @NeverClassInline |
| @SuppressWarnings("override") /* after changing the package the clear method is not overridden */ |
| public static class /* foo.bar.baz. */ SubViewModel extends ViewModel { |
| |
| @NeverInline |
| public void clear() { |
| System.out.println("SubViewModel.clear()"); |
| } |
| |
| public void callBridge() { |
| clear(); |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| SubViewModel viewModel = new SubViewModel(); |
| viewModel.callBridge(); |
| ((ViewModel) viewModel).clear(); |
| } |
| } |
| } |