| // 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.keptgraph; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.references.Reference; |
| import com.android.tools.r8.utils.graphinspector.GraphInspector; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| 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 KeptByLibraryMethod extends TestBase { |
| |
| // Library |
| |
| public abstract static class Drawable { |
| abstract void draw(); |
| } |
| |
| public static class Scene { |
| private Collection<Drawable> drawables = new ArrayList<>(); |
| |
| public void register(Drawable drawable) { |
| drawables.add(drawable); |
| } |
| |
| public void drawScene() { |
| for (Drawable drawable : drawables) { |
| drawable.draw(); |
| } |
| } |
| } |
| |
| // Program |
| |
| public static class MyShape extends Drawable { |
| |
| @Override |
| void draw() { |
| System.out.println("MyShape was drawn!"); |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| Scene scene = new Scene(); |
| scene.register(new MyShape()); |
| scene.drawScene(); |
| } |
| } |
| |
| // Test runner |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withCfRuntimes().build(); |
| } |
| |
| private final TestParameters parameters; |
| |
| public KeptByLibraryMethod(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| GraphInspector inspector = |
| testForR8(parameters.getBackend()) |
| .enableGraphInspector() |
| .addKeepMainRule(Main.class) |
| .addLibraryClasses(Scene.class, Drawable.class) |
| .addLibraryFiles(TestBase.runtimeJar(parameters.getBackend())) |
| .addProgramClasses(Main.class, MyShape.class) |
| .compile() |
| // The use of classpath classes is unsupported for DEX runtimes currently. |
| .addRunClasspathClasses(Scene.class, Drawable.class) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("MyShape was drawn!") |
| .graphInspector(); |
| |
| inspector |
| .method(Reference.methodFromMethod(MyShape.class.getDeclaredMethod("draw"))) |
| .assertPresent() |
| .assertKeptByLibraryMethod(inspector.clazz(Reference.classFromClass(MyShape.class))); |
| } |
| } |