| // 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.desugar.desugaredlibrary; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static junit.framework.TestCase.assertFalse; |
| import static junit.framework.TestCase.assertTrue; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import java.io.Serializable; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.Spliterator; |
| 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 ImplementedInterfacesTest extends DesugaredLibraryTestBase { |
| |
| private final TestParameters parameters; |
| private final boolean canUseDefaultAndStaticInterfaceMethods; |
| |
| @Parameters(name = "{0}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getTestParameters().withAllRuntimes().withAllApiLevelsAlsoForCf().build()); |
| } |
| |
| public ImplementedInterfacesTest(TestParameters parameters) { |
| this.parameters = parameters; |
| this.canUseDefaultAndStaticInterfaceMethods = |
| parameters |
| .getApiLevel() |
| .isGreaterThanOrEqualTo(apiLevelWithDefaultInterfaceMethodsSupport()); |
| } |
| |
| private String desugaredJavaTypeNameFor(Class<?> clazz) { |
| return clazz.getTypeName().replace("java.", "j$."); |
| } |
| |
| private void checkInterfaces(CodeInspector inspector) { |
| ClassSubject clazz = inspector.clazz(MultipleInterfaces.class); |
| assertThat(clazz, isPresent()); |
| assertTrue(clazz.isImplementing(Serializable.class)); |
| assertTrue(clazz.isImplementing(Set.class)); |
| assertTrue(clazz.isImplementing(List.class)); |
| assertFalse(clazz.isImplementing(Collection.class)); |
| assertFalse(clazz.isImplementing(Iterable.class)); |
| if (!canUseDefaultAndStaticInterfaceMethods) { |
| assertFalse(clazz.isImplementing(desugaredJavaTypeNameFor(Serializable.class))); |
| assertTrue(clazz.isImplementing(desugaredJavaTypeNameFor(Set.class))); |
| assertTrue(clazz.isImplementing(desugaredJavaTypeNameFor(List.class))); |
| assertFalse(clazz.isImplementing(desugaredJavaTypeNameFor(Collection.class))); |
| assertFalse(clazz.isImplementing(desugaredJavaTypeNameFor(Iterable.class))); |
| } |
| } |
| |
| @Test |
| public void testInterfaces() throws Exception { |
| KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters); |
| testForD8(parameters.getBackend()) |
| .addInnerClasses(ImplementedInterfacesTest.class) |
| .setMinApi(parameters.getApiLevel()) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer) |
| .compile() |
| .inspect(this::checkInterfaces); |
| } |
| |
| abstract static class MultipleInterfaces<T> implements List<T>, Serializable, Set<T> { |
| |
| // Disambiguate between default methods List.spliterator() and Set.spliterator() |
| @Override |
| public Spliterator<T> spliterator() { |
| return Set.super.spliterator(); |
| } |
| } |
| } |