| // 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.shaking.annotations; |
| |
| import static com.android.tools.r8.utils.codeinspector.CodeMatchers.containsThrow; |
| 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.isPresentAndRenamed; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.utils.BooleanUtils; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import java.util.List; |
| 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 KeepDisallowAnnotationRemovalAllowOptimizationTest extends TestBase { |
| |
| @Parameter(0) |
| public boolean enableCompatibilityMode; |
| |
| @Parameter(1) |
| public TestParameters parameters; |
| |
| @Parameters(name = "{1}, compat: {0}") |
| public static List<Object[]> parameters() { |
| return buildParameters( |
| BooleanUtils.values(), getTestParameters().withAllRuntimesAndApiLevels().build()); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8Compat(parameters.getBackend(), enableCompatibilityMode) |
| .addProgramClasses(Main.class) |
| .addKeepMainRule(Main.class) |
| .addKeepClassAndMembersRules(NeverInline.class) |
| .addKeepRules( |
| "-keepclassmembers,allowobfuscation,allowoptimization,allowshrinking class * {", |
| " static java.lang.Object getNonNull();", |
| "}") |
| .addKeepRuntimeInvisibleAnnotations() |
| // In compatibility mode the rule above is a no-op. |
| .allowUnusedProguardConfigurationRules(enableCompatibilityMode) |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect( |
| inspector -> { |
| ClassSubject classSubject = inspector.clazz(Main.class); |
| assertThat(classSubject, isPresent()); |
| |
| // The annotation on getNonNull() is kept meanwhile it is subject to other |
| // optimizations. |
| MethodSubject getNonNullSubject = classSubject.uniqueMethodWithName("getNonNull"); |
| assertThat(getNonNullSubject, isPresentAndRenamed()); |
| assertThat(getNonNullSubject.annotation(NeverInline.class), isPresent()); |
| |
| // Check that the code has been optimized using the fact that getNonNull() returns a |
| // non-null value. |
| assertThat(classSubject.uniqueMethodWithName("dead"), isAbsent()); |
| assertThat(classSubject.mainMethod(), not(containsThrow())); |
| }) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("getNonNull()"); |
| } |
| |
| static class Main { |
| public static void main(String[] args) { |
| Object o = getNonNull(); |
| if (o == null) { |
| dead(); |
| } |
| } |
| |
| @NeverInline |
| static Object getNonNull() { |
| System.out.println("getNonNull()"); |
| return new Object(); |
| } |
| |
| @NeverInline |
| static void dead() { |
| throw new RuntimeException(); |
| } |
| } |
| } |