| // Copyright (c) 2024, 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; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.StringUtils; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| 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; |
| |
| // This is a reproduction of b/378473616 (extracted from KT-72888) |
| @RunWith(Parameterized.class) |
| public class AnnotationImplementedAndInstantiatedInProgramTest extends TestBase { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| private static final String EXPECTED_OUTPUT = StringUtils.lines("3", "4", "null"); |
| |
| @Test |
| public void testJvm() throws Exception { |
| parameters.assumeJvmTestParameters(); |
| testForJvm(parameters) |
| .addInnerClasses(getClass()) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED_OUTPUT); |
| } |
| |
| @Test |
| public void testD8() throws Exception { |
| parameters.assumeDexRuntime(); |
| testForD8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .setMinApi(parameters) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED_OUTPUT); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(TestClass.class) |
| .addKeepClassRules(MyAnnotation.class, A.class, B.class) |
| .addKeepAttributeAnnotationDefault() |
| .addKeepRuntimeVisibleAnnotations() |
| .setMinApi(parameters) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED_OUTPUT); |
| } |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| @interface MyAnnotation { |
| int x() default 0; |
| } |
| |
| public static class MyAnnotationImpl implements MyAnnotation { |
| private final int x; |
| |
| public MyAnnotationImpl(int x) { |
| this.x = x + 2; |
| } |
| |
| @Override |
| public int x() { |
| return x; |
| } |
| |
| @Override |
| public Class<? extends java.lang.annotation.Annotation> annotationType() { |
| return MyAnnotation.class; |
| } |
| } |
| |
| @MyAnnotation(x = 1) |
| static class A {} |
| |
| @MyAnnotation(x = 2) |
| static class B {} |
| |
| static class TestClass { |
| public static MyAnnotation copyOfMyAnnotation(Class<?> clazz) { |
| Object a = clazz.getAnnotation(MyAnnotation.class); |
| if (a == null) { |
| return null; |
| } |
| MyAnnotation copy = (MyAnnotation) a; |
| return new MyAnnotationImpl(copy.x()); |
| } |
| |
| public static void main(String[] args) { |
| MyAnnotation a = copyOfMyAnnotation(A.class); |
| System.out.println(a == null ? "null" : a.x()); |
| a = copyOfMyAnnotation(B.class); |
| System.out.println(a == null ? "null" : a.x()); |
| a = copyOfMyAnnotation(TestClass.class); |
| System.out.println(a == null ? "null" : a.x()); |
| } |
| } |
| } |