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// 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.keepanno;
import static com.android.tools.r8.utils.codeinspector.Matchers.isPresentAndNotRenamed;
import static com.android.tools.r8.utils.codeinspector.Matchers.isPresentAndRenamed;
import static org.hamcrest.MatcherAssert.assertThat;
import com.android.tools.r8.keepanno.annotations.AnnotationPattern;
import com.android.tools.r8.keepanno.annotations.ClassNamePattern;
import com.android.tools.r8.keepanno.annotations.KeepConstraint;
import com.android.tools.r8.keepanno.annotations.KeepItemKind;
import com.android.tools.r8.keepanno.annotations.KeepTarget;
import com.android.tools.r8.keepanno.annotations.UsedByReflection;
import com.android.tools.r8.keepanno.annotations.UsesReflection;
import com.android.tools.r8.utils.AndroidApiLevel;
import com.android.tools.r8.utils.StringUtils;
import com.android.tools.r8.utils.codeinspector.CodeInspector;
import com.google.common.collect.ImmutableList;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
@RunWith(Parameterized.class)
public class ClassAnnotatedByAnyAnnoPatternTest extends KeepAnnoTestBase {
static final String EXPECTED = StringUtils.lines("C1: A1", "C2: A2");
@Parameter public KeepAnnoParameters parameters;
@Parameterized.Parameters(name = "{0}")
public static List<KeepAnnoParameters> data() {
return createParameters(
getTestParameters().withDefaultRuntimes().withApiLevel(AndroidApiLevel.B).build());
}
@Test
public void test() throws Exception {
testForKeepAnno(parameters)
.enableNativeInterpretation()
.addProgramClasses(getInputClasses())
.setExcludedOuterClass(getClass())
.run(TestClass.class)
.assertSuccessWithOutput(EXPECTED)
.applyIf(parameters.isShrinker(), r -> r.inspect(this::checkOutput));
}
public List<Class<?>> getInputClasses() {
return ImmutableList.of(
TestClass.class, Reflector.class, A1.class, A2.class, C1.class, C2.class, C3.class);
}
private void checkOutput(CodeInspector inspector) {
// The class constant use will ensure the annotations remains.
// They are not renamed as the keep-annotation will match them (they are themselves annotated).
assertThat(inspector.clazz(A1.class), isPresentAndNotRenamed());
assertThat(inspector.clazz(A2.class), isPresentAndNotRenamed());
// The first two classes are annotated so the keep-annotation applies and retains their name.
assertThat(inspector.clazz(C1.class), isPresentAndNotRenamed());
assertThat(inspector.clazz(C2.class), isPresentAndNotRenamed());
// The last class will remain due to the class constant, but it is optimized/renamed.
assertThat(inspector.clazz(C3.class), isPresentAndRenamed());
}
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@interface A1 {}
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@interface A2 {}
static class Reflector {
@UsesReflection(
@KeepTarget(
classAnnotatedByClassNamePattern = @ClassNamePattern,
constraints = KeepConstraint.NAME,
constrainAnnotations = {
@AnnotationPattern(constant = A1.class),
@AnnotationPattern(constant = A2.class)
}))
public void foo(Class<?>... classes) throws Exception {
for (Class<?> clazz : classes) {
if (clazz.getAnnotations().length > 0) {
String typeName = clazz.getTypeName();
System.out.print(typeName.substring(typeName.lastIndexOf('$') + 1) + ":");
if (clazz.isAnnotationPresent(A1.class)) {
System.out.print(" A1");
}
if (clazz.isAnnotationPresent(A2.class)) {
System.out.print(" A2");
}
System.out.println();
}
}
}
}
@A1
static class C1 {}
@A2
static class C2 {}
static class C3 {}
static class TestClass {
@UsedByReflection(kind = KeepItemKind.CLASS_AND_METHODS)
public static void main(String[] args) throws Exception {
new Reflector().foo(C1.class, C2.class, C3.class);
}
}
}