| // Copyright (c) 2018, 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.examples; |
| |
| import com.android.tools.r8.shaking.TreeShakingTest; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import com.google.common.collect.ImmutableList; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import org.junit.Assert; |
| 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 TreeShaking17Test extends TreeShakingTest { |
| |
| @Parameters(name = "mode:{0}-{1} minify:{2}") |
| public static Collection<Object[]> data() { |
| List<Object[]> parameters = new ArrayList<>(); |
| for (MinifyMode minify : MinifyMode.values()) { |
| parameters.add(new Object[] {Frontend.JAR, Backend.CF, minify}); |
| parameters.add(new Object[] {Frontend.JAR, Backend.DEX, minify}); |
| parameters.add(new Object[] {Frontend.DEX, Backend.DEX, minify}); |
| } |
| return parameters; |
| } |
| |
| public TreeShaking17Test(Frontend frontend, Backend backend, MinifyMode minify) { |
| super("examples/shaking17", "shaking17.Shaking", frontend, backend, minify); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| runTest( |
| TreeShaking17Test::abstractMethodRemains, |
| null, |
| null, |
| ImmutableList.of("src/test/examples/shaking17/keep-rules.txt")); |
| } |
| |
| private static void abstractMethodRemains(CodeInspector inspector) { |
| ClassSubject programClass = inspector.clazz("shaking17.AbstractProgramClass"); |
| Assert.assertTrue(programClass.isPresent()); |
| // With call site optimization, the dynamic type of the argument of Shaking#callTheMethod is |
| // SubClass, not AbstractProgramClass. Then, the resolution of the invocation is accurately |
| // referring to SubClass#abstractMethod only, i.e., AbstractProgramClass#abstractMethod is no |
| // longer live, hence shrunken. |
| Assert.assertFalse( |
| programClass.method("int", "abstractMethod", Collections.emptyList()).isPresent()); |
| } |
| } |