| // 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 org.hamcrest.CoreMatchers.containsString; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.utils.BooleanUtils; |
| import java.util.List; |
| import java.util.concurrent.ConcurrentHashMap; |
| 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 LibraryEmptySubclassInterfaceTest extends DesugaredLibraryTestBase { |
| |
| private final TestParameters parameters; |
| private final boolean shrinkDesugaredLibrary; |
| |
| @Parameters(name = "{1}, shrinkDesugaredLibrary: {0}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| BooleanUtils.values(), getTestParameters().withDexRuntimes().withAllApiLevels().build()); |
| } |
| |
| public LibraryEmptySubclassInterfaceTest( |
| boolean shrinkDesugaredLibrary, TestParameters parameters) { |
| this.shrinkDesugaredLibrary = shrinkDesugaredLibrary; |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testD8() throws Exception { |
| KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters); |
| testForD8() |
| .addLibraryFiles(getLibraryFile()) |
| .addInnerClasses(LibraryEmptySubclassInterfaceTest.class) |
| .setMinApi(parameters.getApiLevel()) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer) |
| .compile() |
| .addDesugaredCoreLibraryRunClassPath( |
| this::buildDesugaredLibrary, |
| parameters.getApiLevel(), |
| keepRuleConsumer.get(), |
| shrinkDesugaredLibrary) |
| .run(parameters.getRuntime(), Executor.class) |
| .assertSuccessWithOutputLines(getResult()); |
| assertExpectedKeepRules(keepRuleConsumer); |
| } |
| |
| private void assertExpectedKeepRules(KeepRuleConsumer keepRuleConsumer) { |
| if (!requiresEmulatedInterfaceCoreLibDesugaring(parameters)) { |
| return; |
| } |
| String keepRules = keepRuleConsumer.get(); |
| assertThat(keepRules, containsString("-keep class j$.util.concurrent.ConcurrentHashMap")); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters); |
| testForR8(Backend.DEX) |
| .addLibraryFiles(getLibraryFile()) |
| .addInnerClasses(LibraryEmptySubclassInterfaceTest.class) |
| .addKeepMainRule(Executor.class) |
| .noMinification() |
| .setMinApi(parameters.getApiLevel()) |
| .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer) |
| .compile() |
| .addDesugaredCoreLibraryRunClassPath( |
| this::buildDesugaredLibrary, |
| parameters.getApiLevel(), |
| keepRuleConsumer.get(), |
| shrinkDesugaredLibrary) |
| .run(parameters.getRuntime(), Executor.class) |
| .assertSuccessWithOutputLines(getResult()); |
| assertExpectedKeepRules(keepRuleConsumer); |
| } |
| |
| private String getResult() { |
| return requiresEmulatedInterfaceCoreLibDesugaring(parameters) |
| ? "class j$.util.concurrent.ConcurrentHashMap" |
| : "class java.util.concurrent.ConcurrentHashMap"; |
| } |
| |
| @SuppressWarnings("MismatchedQueryAndUpdateOfCollection") |
| static class Executor { |
| |
| public static void main(String[] args) { |
| System.out.println(NullableConcurrentHashMap.class.getSuperclass()); |
| } |
| } |
| |
| static class NullableConcurrentHashMap<K, V> extends ConcurrentHashMap<K, V> { |
| NullableConcurrentHashMap() { |
| super(); |
| } |
| } |
| } |