| // Copyright (c) 2022, 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.enumunboxing; |
| |
| import com.android.tools.r8.TestParameters; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class NullValuedFieldEnumUnboxingTest extends EnumUnboxingTestBase { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameter(1) |
| public EnumKeepRules enumKeepRules; |
| |
| @Parameters(name = "{0}, keep: {1}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getTestParameters().withAllRuntimesAndApiLevels().build(), getAllEnumKeepRules()); |
| } |
| |
| @Test |
| public void testEnumUnboxing() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(NullValuedFieldEnumUnboxingTest.class) |
| .addKeepMainRule(Main.class) |
| .addKeepRules(enumKeepRules.getKeepRules()) |
| .addEnumUnboxingInspector(inspector -> inspector.assertUnboxed(MyEnum.class)) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("a", "null"); |
| } |
| |
| enum MyEnum { |
| A("a"), |
| B(null); |
| |
| String value; |
| |
| MyEnum(String value) { |
| this.value = value; |
| } |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| MyEnum a = System.currentTimeMillis() > 0 ? MyEnum.A : MyEnum.B; |
| MyEnum b = System.currentTimeMillis() > 0 ? MyEnum.B : MyEnum.A; |
| System.out.println(a.value); |
| System.out.println(b.value); |
| } |
| } |
| } |