| // 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.memberrebinding; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isSynthetic; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NoHorizontalClassMerging; |
| import com.android.tools.r8.NoParameterTypeStrengthening; |
| 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.utils.DescriptorUtils; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.FoundMethodSubject; |
| import com.android.tools.r8.utils.codeinspector.HorizontallyMergedClassesInspector; |
| 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 MemberRebindingRemoveInterfaceBridgeWithSubTypeTest extends TestBase { |
| |
| private final TestParameters parameters; |
| private final String newMainDescriptor = "La/Main;"; |
| private final String newMainTypeName = DescriptorUtils.descriptorToJavaType(newMainDescriptor); |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public MemberRebindingRemoveInterfaceBridgeWithSubTypeTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(A.class, B.class, I.class) |
| .addProgramClassFileData( |
| transformer(Main.class).setClassDescriptor(newMainDescriptor).transform()) |
| .setMinApi(parameters.getApiLevel()) |
| .addKeepMainRule(newMainTypeName) |
| .addKeepClassAndMembersRules(I.class) |
| .enableInliningAnnotations() |
| .enableNoHorizontalClassMergingAnnotations() |
| .enableNoParameterTypeStrengtheningAnnotations() |
| .enableNoVerticalClassMergingAnnotations() |
| .addHorizontallyMergedClassesInspector( |
| HorizontallyMergedClassesInspector::assertNoClassesMerged) |
| .noMinification() |
| .run(parameters.getRuntime(), newMainTypeName) |
| .assertSuccessWithOutputLines("B::foo") |
| .inspect( |
| inspector -> { |
| ClassSubject clazz = inspector.clazz(A.class); |
| assertThat(clazz, isPresent()); |
| // TODO(b/197490164): We should remove the bridge inserted here. |
| assertEquals(1, clazz.virtualMethods().size()); |
| FoundMethodSubject foundMethodSubject = clazz.virtualMethods().get(0); |
| assertThat(foundMethodSubject, isSynthetic()); |
| }); |
| } |
| |
| interface I { |
| |
| void foo(); |
| } |
| |
| @NoHorizontalClassMerging |
| @NoVerticalClassMerging |
| public abstract static class A implements I {} |
| |
| @NoHorizontalClassMerging |
| public static class B extends A { |
| |
| @Override |
| @NeverInline |
| public void foo() { |
| System.out.println("B::foo"); |
| } |
| } |
| |
| public static class /* a.Main */ Main { |
| |
| public static void main(String[] args) { |
| callJ(args.length == 0 ? new B() : null); |
| } |
| |
| @NeverInline |
| @NoParameterTypeStrengthening |
| private static void callJ(A a) { |
| a.foo(); |
| } |
| } |
| } |