| // Copyright (c) 2020, 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.horizontal; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isAbsent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.classmerging.horizontal.EmptyClassTest.A; |
| import com.android.tools.r8.classmerging.horizontal.EmptyClassTest.B; |
| import com.android.tools.r8.classmerging.horizontal.EmptyClassTest.Main; |
| import org.junit.Test; |
| |
| public class CompanionClassMergingTest extends HorizontalClassMergingTestBase { |
| public CompanionClassMergingTest(TestParameters parameters) { |
| super(parameters); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .addOptionsModification(options -> options.enableClassInlining = false) |
| .enableNeverClassInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .addHorizontallyMergedClassesInspector( |
| inspector -> inspector.assertMergedInto(B.Companion.class, A.Companion.class)) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("foo a 0", "foo b 1") |
| .inspect( |
| codeInspector -> { |
| assertThat(codeInspector.clazz(A.class), isPresent()); |
| assertThat(codeInspector.clazz(B.class), isPresent()); |
| |
| assertThat(codeInspector.clazz(A.Companion.class), isPresent()); |
| assertThat(codeInspector.clazz(B.Companion.class), isAbsent()); |
| }); |
| } |
| |
| @NeverClassInline |
| public static class A { |
| public static final Companion companion = new Companion(null); |
| public static String foo; |
| |
| static { |
| foo = "foo a " + Main.next(); |
| } |
| |
| public static String access$getFoo$cp() { |
| return foo; |
| } |
| |
| public static class Companion { |
| public Companion() {} |
| |
| public Companion(Object obj) { |
| this(); |
| } |
| |
| public String getFoo() { |
| return access$getFoo$cp(); |
| } |
| } |
| } |
| |
| @NeverClassInline |
| public static class B { |
| public static final Companion companion = new Companion(null); |
| public static String foo; |
| |
| static { |
| foo = "foo b " + Main.next(); |
| } |
| |
| public static String access$getFoo$cp() { |
| return foo; |
| } |
| |
| public static class Companion { |
| public Companion() {} |
| |
| public Companion(Object obj) { |
| this(); |
| } |
| |
| public String getFoo() { |
| return access$getFoo$cp(); |
| } |
| } |
| } |
| |
| public static class Main { |
| static int COUNT = 0; |
| |
| public static int next() { |
| return COUNT++; |
| } |
| |
| public static void main(String[] args) { |
| System.out.println(A.companion.getFoo()); |
| System.out.println(B.companion.getFoo()); |
| } |
| } |
| } |