| // 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.classmerging; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.NeverInline; |
| 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 org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class StaticClassMergerVisibilityTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| public StaticClassMergerVisibilityTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| @Test |
| public void testStaticClassIsRemoved() throws Exception { |
| CodeInspector inspector = |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(StaticClassMergerVisibilityTest.class) |
| .addKeepMainRule(Main.class) |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("A.print()", "B.print()", "C.print()", "D.print()") |
| .inspector(); |
| |
| // The global group will have one representative, which is C. |
| ClassSubject clazzC = inspector.clazz(C.class); |
| assertThat(clazzC, isPresent()); |
| assertEquals(1, clazzC.allMethods().size()); |
| |
| // The package group will be merged into one of A, B or C. |
| assertExactlyOneIsPresent( |
| inspector.clazz(A.class), inspector.clazz(B.class), inspector.clazz(D.class)); |
| } |
| |
| private void assertExactlyOneIsPresent(ClassSubject... subjects) { |
| boolean seenPresent = false; |
| for (ClassSubject subject : subjects) { |
| if (subject.isPresent()) { |
| assertFalse(seenPresent); |
| seenPresent = true; |
| } |
| } |
| assertTrue(seenPresent); |
| } |
| |
| // Will be merged into the package group. |
| private static class A { |
| @NeverInline |
| private static void print() { |
| System.out.println("A.print()"); |
| } |
| } |
| |
| // Will be merged into the package group. |
| static class B { |
| @NeverInline |
| static void print() { |
| System.out.println("B.print()"); |
| } |
| } |
| |
| // Will be merged into global group |
| public static class C { |
| @NeverInline |
| public static void print() { |
| System.out.println("C.print()"); |
| } |
| } |
| |
| // Will be merged into the package group. |
| protected static class D { |
| @NeverInline |
| protected static void print() { |
| System.out.println("D.print()"); |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| A.print(); |
| B.print(); |
| C.print(); |
| D.print(); |
| } |
| } |
| } |