| // 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; |
| |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification.D8_L8DEBUG; |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.JDK11; |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.getJdk8Jdk11; |
| import static org.junit.Assume.assumeFalse; |
| import static org.junit.Assume.assumeTrue; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.desugar.desugaredlibrary.DesugaredLibraryTestBase; |
| import com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification; |
| import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.google.common.collect.ImmutableList; |
| import java.util.List; |
| import java.util.function.Consumer; |
| import java.util.function.IntConsumer; |
| 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 InvokeSuperToRewrittenDefaultMethodTest extends DesugaredLibraryTestBase { |
| |
| private static final String EXPECTED = StringUtils.lines("Y", "89"); |
| |
| private final TestParameters parameters; |
| private final LibraryDesugaringSpecification libraryDesugaringSpecification; |
| private final CompilationSpecification compilationSpecification; |
| |
| @Parameters(name = "{0}, spec: {1}, {2}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getTestParameters().withAllRuntimesAndApiLevels().build(), |
| getJdk8Jdk11(), |
| ImmutableList.of(D8_L8DEBUG)); |
| } |
| |
| public InvokeSuperToRewrittenDefaultMethodTest( |
| TestParameters parameters, |
| LibraryDesugaringSpecification libraryDesugaringSpecification, |
| CompilationSpecification compilationSpecification) { |
| this.parameters = parameters; |
| this.libraryDesugaringSpecification = libraryDesugaringSpecification; |
| this.compilationSpecification = compilationSpecification; |
| } |
| |
| private boolean needsDefaultInterfaceMethodDesugaring() { |
| return parameters.isDexRuntime() |
| && parameters.getApiLevel().isLessThan(apiLevelWithDefaultInterfaceMethodsSupport()); |
| } |
| |
| @Test |
| public void testReference() throws Exception { |
| assumeFalse("Run only once.", libraryDesugaringSpecification == JDK11); |
| assumeFalse(needsDefaultInterfaceMethodDesugaring()); |
| testForRuntime(parameters) |
| .addInnerClasses(InvokeSuperToRewrittenDefaultMethodTest.class) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testDesugaring() throws Throwable { |
| assumeTrue(needsDefaultInterfaceMethodDesugaring()); |
| testForDesugaredLibrary(parameters, libraryDesugaringSpecification, compilationSpecification) |
| .addInnerClasses(getClass()) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| |
| public interface CharConsumer extends Consumer<Character>, IntConsumer { |
| |
| void accept(char c); |
| |
| @Override |
| default void accept(int value) { |
| accept((char) value); |
| } |
| |
| @Override |
| default void accept(Character character) { |
| accept(character.charValue()); |
| } |
| |
| @Override |
| default Consumer<Character> andThen(Consumer<? super Character> after) { |
| // Simple forward to the default method of the parent. |
| // Must be rewritten to target the companion class of the rewritten Consumer type. |
| return Consumer.super.andThen(after); |
| } |
| } |
| |
| public static class TestClass { |
| |
| public static void main(String[] args) { |
| CharConsumer consumer = System.out::println; |
| consumer.andThen((Consumer<? super Character>) c -> System.out.println((int) c)).accept('Y'); |
| } |
| } |
| } |