| // 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.R8TestCompileResult; |
| import com.android.tools.r8.R8TestRunResult; |
| 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 ValueOfEnumUnboxingTest extends EnumUnboxingTestBase { |
| |
| private static final Class<?>[] SUCCESSES = { |
| EnumValueOf.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 ValueOfEnumUnboxingTest( |
| TestParameters parameters, boolean enumValueOptimization, EnumKeepRules enumKeepRules) { |
| this.parameters = parameters; |
| this.enumValueOptimization = enumValueOptimization; |
| this.enumKeepRules = enumKeepRules; |
| } |
| |
| @Test |
| public void testEnumUnboxing() throws Exception { |
| R8TestCompileResult compile = |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(ValueOfEnumUnboxingTest.class) |
| .addKeepMainRules(SUCCESSES) |
| .enableNeverClassInliningAnnotations() |
| .addKeepRules(enumKeepRules.getKeepRules()) |
| .addOptionsModification(opt -> enableEnumOptions(opt, enumValueOptimization)) |
| .allowDiagnosticInfoMessages() |
| .setMinApi(parameters.getApiLevel()) |
| .compile(); |
| for (Class<?> success : SUCCESSES) { |
| R8TestRunResult run = |
| compile |
| .inspectDiagnosticMessages( |
| m -> |
| assertEnumIsUnboxed( |
| success.getDeclaredClasses()[0], success.getSimpleName(), m)) |
| .run(parameters.getRuntime(), success) |
| .assertSuccess(); |
| assertLines2By2Correct(run.getStdOut()); |
| } |
| } |
| |
| static class EnumValueOf { |
| |
| @NeverClassInline |
| enum MyEnum { |
| A, |
| B |
| } |
| |
| public static void main(String[] args) { |
| System.out.println(Enum.valueOf(EnumValueOf.MyEnum.class, "A").ordinal()); |
| System.out.println(0); |
| System.out.println(Enum.valueOf(EnumValueOf.MyEnum.class, "B").ordinal()); |
| System.out.println(1); |
| try { |
| iae(); |
| } catch (IllegalArgumentException argException) { |
| System.out.println(argException.getMessage()); |
| System.out.println( |
| "No enum constant" |
| + " com.android.tools.r8.enumunboxing.ValueOfEnumUnboxingTest.EnumValueOf.MyEnum.C"); |
| } |
| try { |
| npe(); |
| } catch (NullPointerException npe) { |
| System.out.println(npe.getMessage()); |
| System.out.println("Name is null"); |
| } |
| } |
| |
| @SuppressWarnings("ConstantConditions") |
| private static void npe() { |
| Enum.valueOf(MyEnum.class, null); |
| } |
| |
| private static void iae() { |
| Enum.valueOf(MyEnum.class, "C"); |
| } |
| } |
| } |