| // Copyright (c) 2022, 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.classmerging.horizontal; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertNotEquals; |
| |
| import com.android.tools.r8.CompilationMode; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| 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; |
| |
| /** |
| * This is a regression test for b/227791663. |
| * |
| * <p>Non-sharable synthetics should not be deduplicated or merged in D8. Examples are the global |
| * synthetics such as RecordTag and API type stubs, but also fixed-suffix synthetics, such as |
| * companion classes for interfaces, which rely on a specific suffix in cases of separate |
| * compilation. |
| */ |
| @RunWith(Parameterized.class) |
| public class HorizontalClassMergingInD8WithCompanionClassesTest extends TestBase { |
| |
| @Parameter() public TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters() |
| .withDexRuntimes() |
| .withApiLevelsEndingAtExcluding(apiLevelWithDefaultInterfaceMethodsSupport()) |
| .build(); |
| } |
| |
| @Test |
| public void testD8() throws Exception { |
| testForD8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .setMode(CompilationMode.RELEASE) |
| .setMinApi(parameters) |
| .addOptionsModification( |
| options -> { |
| options.horizontalClassMergerOptions().enable(); |
| options.horizontalClassMergerOptions().setRestrictToSynthetics(); |
| }) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("I::foo", "J::bar") |
| .inspect( |
| inspector -> { |
| ClassSubject companionI = inspector.clazz(I.class).toCompanionClass(); |
| ClassSubject companionJ = inspector.clazz(J.class).toCompanionClass(); |
| assertThat(companionI, isPresent()); |
| assertThat(companionJ, isPresent()); |
| assertNotEquals(companionI.getFinalName(), companionJ.getFinalName()); |
| }); |
| } |
| |
| public interface I { |
| default void foo() { |
| System.out.println("I::foo"); |
| } |
| } |
| |
| public interface J { |
| default void bar() { |
| System.out.println("J::bar"); |
| } |
| } |
| |
| public static class A implements I {} |
| |
| public static class B implements J {} |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| new A().foo(); |
| new B().bar(); |
| } |
| } |
| } |