| // Copyright (c) 2017, 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 org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.utils.DexInspector; |
| import com.android.tools.r8.utils.DexInspector.ClassSubject; |
| import com.google.common.collect.ImmutableList; |
| import org.junit.Test; |
| |
| public class KeepClassMembersTest extends TestBase { |
| |
| public void runTest(Class mainClass, Class<?> staticClass, |
| boolean forceProguardCompatibility) throws Exception { |
| boolean staticClassHasDefaultConstructor = true; |
| try { |
| staticClass.getDeclaredConstructor(); |
| } catch (NoSuchMethodException e) { |
| staticClassHasDefaultConstructor = false; |
| } |
| String proguardConfig = String.join("\n", ImmutableList.of( |
| "-keepclassmembers class **.PureStatic* {", |
| " public static int b;", |
| " public static int getA();", |
| " public int getI();", |
| "}", |
| "-keep class **.MainUsing* {", |
| " public static void main(java.lang.String[]);", |
| "}", |
| "-dontoptimize", "-dontobfuscate" |
| )); |
| DexInspector inspector = new DexInspector( |
| compileWithR8(ImmutableList.of(mainClass, staticClass), proguardConfig, |
| options -> options.forceProguardCompatibility = forceProguardCompatibility)); |
| assertTrue(inspector.clazz(mainClass).isPresent()); |
| ClassSubject staticClassSubject = inspector.clazz(staticClass); |
| assertTrue(staticClassSubject.isPresent()); |
| assertTrue(staticClassSubject.method("int", "getA", ImmutableList.of()).isPresent()); |
| assertFalse(staticClassSubject.method("int", "getB", ImmutableList.of()).isPresent()); |
| assertTrue(staticClassSubject.field("int", "a").isPresent()); |
| assertTrue(staticClassSubject.field("int", "b").isPresent()); |
| assertFalse(staticClassSubject.field("int", "c").isPresent()); |
| // Force Proguard compatibility keeps the default constructor if present and then assumes |
| // instantiated, hence keeps the instance method as well. |
| assertEquals(forceProguardCompatibility && staticClassHasDefaultConstructor, |
| staticClassSubject.init(ImmutableList.of()).isPresent()); |
| assertEquals(forceProguardCompatibility && staticClassHasDefaultConstructor, |
| staticClassSubject.method("int", "getI", ImmutableList.of()).isPresent()); |
| assertEquals(forceProguardCompatibility && staticClassHasDefaultConstructor, |
| staticClassSubject.field("int", "i").isPresent()); |
| assertFalse(staticClassSubject.method("int", "getJ", ImmutableList.of()).isPresent()); |
| assertFalse(staticClassSubject.field("int", "j").isPresent()); |
| } |
| |
| @Test |
| public void regress69028743() throws Exception { |
| runTest(MainUsingWithDefaultConstructor.class, |
| PureStaticClassWithDefaultConstructor.class, false); |
| runTest(MainUsingWithDefaultConstructor.class, |
| PureStaticClassWithDefaultConstructor.class, true); |
| runTest(MainUsingWithoutDefaultConstructor.class, |
| PureStaticClassWithoutDefaultConstructor.class, false); |
| runTest(MainUsingWithoutDefaultConstructor.class, |
| PureStaticClassWithoutDefaultConstructor.class, true); |
| } |
| } |