| // 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.Assume; |
| 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 ClassAccessEnumUnboxingTest extends EnumUnboxingTestBase { |
| |
| 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 ClassAccessEnumUnboxingTest( |
| TestParameters parameters, boolean enumValueOptimization, EnumKeepRules enumKeepRules) { |
| this.parameters = parameters; |
| this.enumValueOptimization = enumValueOptimization; |
| this.enumKeepRules = enumKeepRules; |
| } |
| |
| @Test |
| public void testEnumUnboxing() throws Exception { |
| Assume.assumeTrue("studio rules required to use valueOf", enumKeepRules.isStudio()); |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(ClassAccessEnumUnboxingTest.class) |
| .addKeepMainRule(Main.class) |
| .addKeepRules(enumKeepRules.getKeepRules()) |
| .addEnumUnboxingInspector( |
| inspector -> |
| inspector |
| .assertUnboxed(ProtoEnumLike.class, UnboxableEnum.class) |
| .assertNotUnboxed(EscapingEnum1.class, EscapingEnum2.class)) |
| .enableNeverClassInliningAnnotations() |
| .enableInliningAnnotations() |
| .addOptionsModification(opt -> enableEnumOptions(opt, enumValueOptimization)) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccess() |
| .inspectStdOut(this::assertLines2By2Correct); |
| } |
| |
| @NeverClassInline |
| enum ProtoEnumLike { |
| A, |
| B, |
| C; |
| |
| @Override |
| @NeverInline |
| public String toString() { |
| return "an instance of " + this.getClass().getName(); |
| } |
| } |
| |
| @NeverClassInline |
| enum UnboxableEnum { |
| A, |
| B, |
| C; |
| |
| @Override |
| @NeverInline |
| public String toString() { |
| return "an instance of " |
| + this.getClass().getName() |
| + this.getClass().getSimpleName() |
| + this.getClass().getCanonicalName(); |
| } |
| } |
| |
| @NeverClassInline |
| enum EscapingEnum1 { |
| A, |
| B, |
| C; |
| } |
| |
| @NeverClassInline |
| enum EscapingEnum2 { |
| A, |
| B, |
| C; |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| unboxableProtoCase(); |
| unboxableCase(); |
| nonUnboxableCase(); |
| } |
| |
| @NeverInline |
| private static void unboxableCase() { |
| System.out.println(UnboxableEnum.A.ordinal()); |
| System.out.println(0); |
| System.out.println(UnboxableEnum.A.toString()); |
| System.out.println("an instance of intintint"); |
| } |
| |
| @NeverInline |
| private static void unboxableProtoCase() { |
| System.out.println(ProtoEnumLike.A.ordinal()); |
| System.out.println(0); |
| System.out.println(ProtoEnumLike.A.toString()); |
| System.out.println("an instance of int"); |
| } |
| |
| @NeverInline |
| private static void nonUnboxableCase() { |
| System.out.println(EscapingEnum1.A.ordinal()); |
| System.out.println(0); |
| System.out.println(EscapingEnum2.A.ordinal()); |
| System.out.println(0); |
| System.out.println(EscapingEnum1.B.ordinal()); |
| System.out.println(1); |
| System.out.println(EscapingEnum2.B.ordinal()); |
| System.out.println(1); |
| System.out.println(getEnum(EscapingEnum1.class, "A").ordinal()); |
| System.out.println(0); |
| System.out.println(getEnum(EscapingEnum2.class, "A").ordinal()); |
| System.out.println(0); |
| System.out.println(getEnum(EscapingEnum1.class, "B").ordinal()); |
| System.out.println(1); |
| System.out.println(getEnum(EscapingEnum2.class, "B").ordinal()); |
| System.out.println(1); |
| } |
| |
| @NeverInline |
| private static <T extends Enum<T>> Enum<T> getEnum(Class<T> enumClass, String value) { |
| return Enum.valueOf(enumClass, value); |
| } |
| } |
| } |