| // 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.TestParametersCollection; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import java.util.Arrays; |
| import java.util.function.Consumer; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class DontKeepBootstrapClassesTest extends DesugaredLibraryTestBase { |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withNoneRuntime().build(); |
| } |
| |
| final AndroidApiLevel minApiLevel = AndroidApiLevel.B; |
| |
| public DontKeepBootstrapClassesTest(TestParameters parameters) { |
| parameters.assertNoneRuntime(); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| KeepRuleConsumer keepRuleConsumer = new PresentKeepRuleConsumer(); |
| testForD8() |
| .addProgramClasses(TestClass.class) |
| .setMinApi(minApiLevel) |
| .addLibraryClasses(CustomLibClass.class) |
| .enableCoreLibraryDesugaring(minApiLevel, keepRuleConsumer) |
| .compile(); |
| assertThat(keepRuleConsumer.get(), containsString("-keep class j$.util.function.Consumer")); |
| // TODO(b/158635415): Don't generate keep rules targeting items outside desugared library. |
| assertThat(keepRuleConsumer.get(), containsString("-keep class java.util")); |
| } |
| |
| static class CustomLibClass { |
| public static <T> Consumer<T> id(Consumer<T> fn) { |
| return fn; |
| } |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| Arrays.asList("A", "B", "C").forEach(CustomLibClass.id(System.out::println)); |
| } |
| } |
| } |