| // 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.desugar.desugaredlibrary.conversiontests; |
| |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification.DEFAULT_SPECIFICATIONS; |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.getJdk8Jdk11; |
| |
| 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.CustomLibrarySpecification; |
| import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.StringUtils; |
| import java.util.List; |
| import java.util.function.DoubleConsumer; |
| 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 UnwrapConversionTest extends DesugaredLibraryTestBase { |
| |
| private final TestParameters parameters; |
| private final LibraryDesugaringSpecification libraryDesugaringSpecification; |
| private final CompilationSpecification compilationSpecification; |
| |
| private static final AndroidApiLevel MIN_SUPPORTED = AndroidApiLevel.N; |
| private static final String EXPECTED_RESULT = StringUtils.lines("true", "true"); |
| |
| @Parameters(name = "{0}, spec: {1}, {2}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getConversionParametersUpToExcluding(MIN_SUPPORTED), |
| getJdk8Jdk11(), |
| DEFAULT_SPECIFICATIONS); |
| } |
| |
| public UnwrapConversionTest( |
| TestParameters parameters, |
| LibraryDesugaringSpecification libraryDesugaringSpecification, |
| CompilationSpecification compilationSpecification) { |
| this.parameters = parameters; |
| this.libraryDesugaringSpecification = libraryDesugaringSpecification; |
| this.compilationSpecification = compilationSpecification; |
| } |
| |
| @Test |
| public void testUnwrap() throws Exception { |
| testForDesugaredLibrary(parameters, libraryDesugaringSpecification, compilationSpecification) |
| .addProgramClasses(Executor.class) |
| .addKeepMainRule(Executor.class) |
| .setCustomLibrarySpecification( |
| new CustomLibrarySpecification(CustomLibClass.class, MIN_SUPPORTED)) |
| .run(parameters.getRuntime(), Executor.class) |
| .assertSuccessWithOutput(EXPECTED_RESULT); |
| } |
| |
| static class Executor { |
| |
| @SuppressWarnings("all") |
| public static void main(String[] args) { |
| // Type wrapper. |
| IntConsumer intConsumer = i -> {}; |
| IntConsumer unwrappedIntConsumer = CustomLibClass.identity(intConsumer); |
| System.out.println(intConsumer == unwrappedIntConsumer); |
| |
| // Vivified wrapper. |
| DoubleConsumer consumer = CustomLibClass.getConsumer(); |
| System.out.println(CustomLibClass.testConsumer(consumer)); |
| } |
| } |
| |
| // This class will be put at compilation time as library and on the runtime class path. |
| // This class is convenient for easy testing. Each method plays the role of methods in the |
| // platform APIs for which argument/return values need conversion. |
| static class CustomLibClass { |
| |
| private static DoubleConsumer consumer = d -> {}; |
| |
| @SuppressWarnings("WeakerAccess") |
| public static IntConsumer identity(IntConsumer intConsumer) { |
| return intConsumer; |
| } |
| |
| public static DoubleConsumer getConsumer() { |
| return consumer; |
| } |
| |
| @SuppressWarnings("WeakerAccess") |
| public static boolean testConsumer(DoubleConsumer doubleConsumer) { |
| return doubleConsumer == consumer; |
| } |
| } |
| } |