| // Copyright (c) 2019, 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.keepclassmembers; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isRenamed; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NeverMerge; |
| 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.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.FieldSubject; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class KeepClassMembersRuleOnIndirectlyInstantiatedClassTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimes().build(); |
| } |
| |
| public KeepClassMembersRuleOnIndirectlyInstantiatedClassTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(KeepClassMembersRuleOnIndirectlyInstantiatedClassTest.class) |
| .addKeepMainRule(TestClass.class) |
| .addKeepRules( |
| "-keepclassmembers class " + A.class.getTypeName() + " {", |
| " java.lang.String greeting;", |
| "}") |
| .enableInliningAnnotations() |
| .enableMergeAnnotations() |
| .setMinApi(parameters.getRuntime()) |
| .compile() |
| .inspect(this::verifyFieldIsPresent) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("Hello world!"); |
| } |
| |
| private void verifyFieldIsPresent(CodeInspector inspector) { |
| ClassSubject classSubject = inspector.clazz(A.class); |
| assertThat(classSubject, isPresent()); |
| |
| FieldSubject fieldSubject = classSubject.uniqueFieldWithName("greeting"); |
| assertThat(fieldSubject, isPresent()); |
| assertThat(fieldSubject, not(isRenamed())); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) throws Exception { |
| B b = new B(); |
| reflectivelyWriteFieldWithName(b, "greeting", "Hello world!"); |
| System.out.println(reflectivelyReadFieldWithName(b, "greeting")); |
| } |
| |
| @NeverInline |
| private static void reflectivelyWriteFieldWithName(Object o, String fieldName, String value) |
| throws Exception { |
| o.getClass().getField(fieldName).set(o, value); |
| } |
| |
| @NeverInline |
| private static String reflectivelyReadFieldWithName(Object o, String fieldName) |
| throws Exception { |
| return (String) o.getClass().getField(fieldName).get(o); |
| } |
| } |
| |
| @NeverMerge |
| static class A { |
| |
| public String greeting; |
| } |
| |
| static class B extends A {} |
| } |