| // 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.shaking.horizontalclassmerging; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.*; |
| import com.android.tools.r8.utils.BooleanUtils; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class IdenticalFieldMembersTest extends TestBase { |
| private final TestParameters parameters; |
| private final boolean enableHorizontalClassMerging; |
| |
| public IdenticalFieldMembersTest( |
| TestParameters parameters, boolean enableHorizontalClassMerging) { |
| this.parameters = parameters; |
| this.enableHorizontalClassMerging = enableHorizontalClassMerging; |
| } |
| |
| @Parameterized.Parameters(name = "{0}, horizontalClassMerging:{1}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getTestParameters().withAllRuntimesAndApiLevels().build(), BooleanUtils.values()); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(IdenticalFieldMembersTest.class) |
| .addKeepMainRule(Main.class) |
| .addOptionsModification( |
| options -> options.enableHorizontalClassMerging = enableHorizontalClassMerging) |
| .enableInliningAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("foo A", "bar B") |
| .inspect( |
| codeInspector -> { |
| if (enableHorizontalClassMerging) { |
| // TODO(b/163311975): A and B should be merged |
| // |
| // Class[] classes = {A.class, B.class}; |
| // assertEquals(1, Arrays.stream(classes) |
| // .filter(a -> codeInspector.clazz(a).isPresent()) |
| // .count()); |
| assertThat(codeInspector.clazz(A.class), isPresent()); |
| assertThat(codeInspector.clazz(B.class), isPresent()); |
| } else { |
| assertThat(codeInspector.clazz(A.class), isPresent()); |
| assertThat(codeInspector.clazz(B.class), isPresent()); |
| } |
| }); |
| } |
| |
| @NeverClassInline |
| public static class A { |
| private String field; |
| |
| public A(String v) { |
| this.field = v; |
| } |
| |
| @NeverInline |
| public void foo() { |
| System.out.println("foo " + field); |
| } |
| } |
| |
| @NeverClassInline |
| public static class B { |
| private String field; |
| |
| public B(String v) { |
| this.field = v; |
| } |
| |
| @NeverInline |
| public void bar() { |
| System.out.println("bar " + field); |
| } |
| } |
| |
| public static class Main { |
| public static void main(String[] args) { |
| A a = new A("A"); |
| a.foo(); |
| B b = new B("B"); |
| b.bar(); |
| } |
| } |
| } |