| // 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.enumunboxing; |
| |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| 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.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class OrdinalHashCodeEnumUnboxingTest extends EnumUnboxingTestBase { |
| |
| private static final Class<MyEnum> ENUM_CLASS = MyEnum.class; |
| |
| private final TestParameters parameters; |
| private final boolean enumValueOptimization; |
| private final EnumKeepRules enumKeepRules; |
| |
| @Parameters(name = "{0} valueOpt: {1} keep: {2}") |
| public static List<Object[]> data() { |
| return enumUnboxingTestParameters(); |
| } |
| |
| public OrdinalHashCodeEnumUnboxingTest( |
| TestParameters parameters, boolean enumValueOptimization, EnumKeepRules enumKeepRules) { |
| this.parameters = parameters; |
| this.enumValueOptimization = enumValueOptimization; |
| this.enumKeepRules = enumKeepRules; |
| } |
| |
| @Test |
| public void testEnumUnboxing() throws Exception { |
| Class<?> classToTest = OrdinalHashCode.class; |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(classToTest, ENUM_CLASS) |
| .addKeepMainRule(classToTest) |
| .addKeepRules(enumKeepRules.getKeepRules()) |
| .addEnumUnboxingInspector(inspector -> inspector.assertUnboxed(ENUM_CLASS)) |
| .enableNeverClassInliningAnnotations() |
| .enableInliningAnnotations() |
| .addOptionsModification(opt -> enableEnumOptions(opt, enumValueOptimization)) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), classToTest) |
| .assertSuccess() |
| .inspectStdOut(this::assertLines2By2Correct); |
| } |
| |
| @NeverClassInline |
| enum MyEnum { |
| A, |
| B, |
| C |
| } |
| |
| static class OrdinalHashCode { |
| |
| public static void main(String[] args) { |
| System.out.println(MyEnum.A.ordinal()); |
| System.out.println(0); |
| System.out.println(ordinal(MyEnum.A)); |
| System.out.println(0); |
| System.out.println(ordinal(MyEnum.B)); |
| System.out.println(1); |
| System.out.println(MyEnum.A.hashCode()); |
| System.out.println(MyEnum.A.hashCode()); |
| System.out.println(hash(MyEnum.A)); |
| System.out.println(System.identityHashCode(MyEnum.A)); |
| System.out.println(hash(null)); |
| System.out.println(0); |
| Object o = new Object(); |
| System.out.println(System.identityHashCode(o)); |
| System.out.println(o.hashCode()); |
| } |
| |
| @NeverInline |
| private static int hash(MyEnum e) { |
| return System.identityHashCode(e); |
| } |
| |
| @NeverInline |
| private static int ordinal(MyEnum e) { |
| return e.ordinal(); |
| } |
| } |
| } |