| // Copyright (c) 2021, 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 org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.DesugarTestConfiguration; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.codeinspector.ClassOrMemberSubject; |
| import java.util.ArrayList; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class DesugarLambdaDontPublicize extends TestBase { |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimes().withAllApiLevelsAlsoForCf().build(); |
| } |
| |
| private final TestParameters parameters; |
| |
| public DesugarLambdaDontPublicize(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testDesugar() throws Exception { |
| testForDesugaring(parameters) |
| .addInnerClasses(DesugarLambdaDontPublicize.class) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("foobar") |
| .inspectIf( |
| DesugarTestConfiguration::isDesugared, |
| inspector -> { |
| // Ensure that we don't add an extra public method for the lambda call. |
| // Mockito will potentially mock this, see: b/195402351 |
| long count = |
| inspector.clazz(TestClass.class).allMethods().stream() |
| .filter(ClassOrMemberSubject::isPublic) |
| .count(); |
| assertEquals(count, 3); |
| }); |
| } |
| |
| public static class StringList extends ArrayList<String> { |
| public void forEachString(MyConsumer<String> consumer) { |
| for (String s : this) { |
| consumer.accept(s); |
| } |
| } |
| } |
| |
| public interface MyConsumer<T> { |
| void accept(T s); |
| } |
| |
| public static class TestClass { |
| |
| public void test() { |
| StringList list = new StringList(); |
| |
| list.add("foobar"); |
| list.forEachString( |
| s -> { |
| class MyConsumerImpl implements MyConsumer<String> { |
| public void accept(String s) { |
| System.out.println(s); |
| } |
| } |
| new MyConsumerImpl().accept(s); |
| }); |
| } |
| |
| public static void main(String[] args) { |
| new TestClass().test(); |
| } |
| } |
| } |