| // Copyright (c) 2019, 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.uninstantiatedtypes; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NeverMerge; |
| 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.StringUtils; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| /** Reproduction for b/128917897. */ |
| @RunWith(Parameterized.class) |
| public class NestedInterfaceMethodTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection params() { |
| return getTestParameters().withAllRuntimes().build(); |
| } |
| |
| public NestedInterfaceMethodTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| String expectedOutput = StringUtils.lines("In A.m()", "In A.m()"); |
| |
| if (parameters.isCfRuntime()) { |
| testForJvm().addTestClasspath().run(TestClass.class).assertSuccessWithOutput(expectedOutput); |
| } |
| |
| CodeInspector inspector = |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(NestedInterfaceMethodTest.class) |
| .addKeepMainRule(TestClass.class) |
| .enableInliningAnnotations() |
| .enableMergeAnnotations() |
| .addOptionsModification( |
| options -> { |
| options.enableDevirtualization = false; |
| options.enableInliningOfInvokesWithNullableReceivers = false; |
| }) |
| .setMinApi(AndroidApiLevel.B) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(expectedOutput) |
| .inspector(); |
| |
| ClassSubject interfaceSubject = inspector.clazz(I.class); |
| assertThat(interfaceSubject, isPresent()); |
| assertThat(interfaceSubject.method(Uninstantiated.class.getTypeName(), "m"), isPresent()); |
| |
| ClassSubject classSubject = inspector.clazz(A.class); |
| assertThat(classSubject, isPresent()); |
| assertThat(classSubject.method(Uninstantiated.class.getTypeName(), "m"), isPresent()); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| test(new B()); |
| test(new C()); |
| } |
| |
| @NeverInline |
| private static void test(I obj) { |
| obj.m(); |
| } |
| } |
| |
| @NeverMerge |
| interface I { |
| |
| Uninstantiated m(); |
| } |
| |
| @NeverMerge |
| interface J extends I {} |
| |
| static class A implements J { |
| |
| @Override |
| public Uninstantiated m() { |
| System.out.println("In A.m()"); |
| return null; |
| } |
| } |
| |
| static class B extends A {} |
| |
| // The purpose of this class is merely to avoid that the invoke-interface instruction in |
| // TestClass.test() gets devirtualized to an invoke-virtual instruction. Otherwise the method |
| // I.m() would not be present in the output. |
| static class C extends A {} |
| |
| static class Uninstantiated {} |
| } |