| // 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.R8TestRunResult; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class UnusedCaseEnumUnboxingTest extends EnumUnboxingTestBase { |
| private final TestParameters parameters; |
| private final boolean enumValueOptimization; |
| private final EnumKeepRules enumKeepRules; |
| |
| @Parameterized.Parameters(name = "{0} valueOpt: {1} keep: {2}") |
| public static List<Object[]> data() { |
| return enumUnboxingTestParameters(); |
| } |
| |
| public UnusedCaseEnumUnboxingTest( |
| TestParameters parameters, boolean enumValueOptimization, EnumKeepRules enumKeepRules) { |
| this.parameters = parameters; |
| this.enumValueOptimization = enumValueOptimization; |
| this.enumKeepRules = enumKeepRules; |
| } |
| |
| @Test |
| public void testEnumUnboxing() throws Exception { |
| R8TestRunResult run = |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(UnusedCaseEnumUnboxingTest.class) |
| .addKeepMainRule(Main.class) |
| .enableNeverClassInliningAnnotations() |
| .enableInliningAnnotations() |
| .addKeepRules(enumKeepRules.getKeepRules()) |
| .addOptionsModification(opt -> enableEnumOptions(opt, enumValueOptimization)) |
| .allowDiagnosticInfoMessages() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect(this::assertFieldsRemoved) |
| .inspectDiagnosticMessages( |
| m -> assertEnumIsUnboxed(MyEnum.class, Main.class.getSimpleName(), m)) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccess(); |
| assertLines2By2Correct(run.getStdOut()); |
| } |
| |
| private void assertFieldsRemoved(CodeInspector codeInspector) { |
| codeInspector.clazz(Main.class); |
| } |
| |
| @NeverClassInline |
| enum MyEnum { |
| USED1("used1"), |
| UNUSED1("unused1"), |
| USED2("used2"), |
| UNUSED2("unused2"); |
| |
| final String myField; |
| |
| MyEnum(String data) { |
| this.myField = data; |
| } |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| printEnumField(MyEnum.USED1); |
| System.out.println("used1"); |
| printEnumField(MyEnum.USED2); |
| System.out.println("used2"); |
| |
| printOrdinal(MyEnum.USED1); |
| System.out.println("0"); |
| printOrdinal(MyEnum.USED2); |
| System.out.println("2"); |
| } |
| |
| @NeverInline |
| private static void printEnumField(MyEnum e) { |
| System.out.println(e.myField); |
| } |
| |
| @NeverInline |
| private static void printOrdinal(MyEnum e) { |
| System.out.println(e.ordinal()); |
| } |
| } |
| } |