| // Copyright (c) 2022, 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.optimize.argumentpropagation; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isAbsent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isStatic; |
| import static junit.framework.TestCase.assertEquals; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NoHorizontalClassMerging; |
| 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.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class CompanionConstructorShakingTest extends TestBase { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .enableInliningAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .enableNoHorizontalClassMergingAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect( |
| inspector -> { |
| ClassSubject hostClassSubject = inspector.clazz(Host.class); |
| assertThat(hostClassSubject, isPresent()); |
| assertEquals(1, hostClassSubject.allMethods().size()); |
| assertThat(hostClassSubject.clinit(), isAbsent()); |
| assertThat(hostClassSubject.uniqueMethodWithName("keepHost"), isPresent()); |
| |
| ClassSubject companionClassSubject = inspector.clazz(Host.Companion.class); |
| assertThat(companionClassSubject, isPresent()); |
| assertEquals(1, companionClassSubject.allMethods().size()); |
| assertThat(companionClassSubject.init(), isAbsent()); |
| |
| MethodSubject greetMethodSubject = |
| companionClassSubject.uniqueMethodWithName("greet"); |
| assertThat(greetMethodSubject, isStatic()); |
| }) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("Hello world!"); |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| Host.companion.greet(); |
| Host.keepHost(); |
| } |
| } |
| |
| static class Host { |
| |
| static final Companion companion = new Companion(); |
| |
| @NeverInline |
| static void keepHost() { |
| System.out.println(); |
| } |
| |
| @NeverClassInline |
| @NoHorizontalClassMerging |
| static class Companion { |
| |
| @NeverInline |
| void greet() { |
| System.out.print("Hello world!"); |
| } |
| } |
| } |
| } |