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// 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 static org.hamcrest.CoreMatchers.containsString;
import static org.junit.Assert.assertThrows;
import com.android.tools.r8.CompilationFailedException;
import com.android.tools.r8.DiagnosticsMatcher;
import com.android.tools.r8.NeverClassInline;
import com.android.tools.r8.R8FullTestBuilder;
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;
/** This is a regression for b/247146910. */
@RunWith(Parameterized.class)
public class EnumInEnumFieldTest 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 EnumInEnumFieldTest(
TestParameters parameters, boolean enumValueOptimization, EnumKeepRules enumKeepRules) {
this.parameters = parameters;
this.enumValueOptimization = enumValueOptimization;
this.enumKeepRules = enumKeepRules;
}
@Test
public void testRuntime() throws Exception {
testForRuntime(parameters)
.addInnerClasses(EnumInEnumFieldTest.class)
.run(parameters.getRuntime(), Main.class)
.assertSuccessWithOutputLines("0");
}
@Test
public void testEnumUnboxing() throws Exception {
// TODO(b/247146910): Should not throw compilation error.
assertThrows(CompilationFailedException.class, setupTest()::compile);
}
@Test
public void testEnumUnboxingAllowingTypeErrors() throws Exception {
// TODO(b/247146910): Should not insert throw null.
setupTest()
.addOptionsModification(options -> options.testing.allowTypeErrors = true)
.allowDiagnosticWarningMessages()
.compileWithExpectedDiagnostics(
diagnostics ->
diagnostics.assertAllWarningsMatch(
DiagnosticsMatcher.diagnosticMessage(
containsString(
"does not type check and will be assumed to be unreachable."))))
.run(parameters.getRuntime(), Main.class)
.assertFailureWithErrorThatThrows(NullPointerException.class);
}
private R8FullTestBuilder setupTest() throws Exception {
return testForR8(parameters.getBackend())
.addInnerClasses(EnumInEnumFieldTest.class)
.addKeepMainRule(Main.class)
.addKeepRules(enumKeepRules.getKeepRules())
.addOptionsModification(opt -> enableEnumOptions(opt, enumValueOptimization))
.addEnumUnboxingInspector(
inspector -> inspector.assertUnboxed(MyEnum.class, OtherEnum.class))
.addNeverClassInliningAnnotations()
.setMinApi(parameters.getApiLevel());
}
@NeverClassInline
public enum OtherEnum {
C,
D;
}
@NeverClassInline
public enum MyEnum {
A,
B;
public OtherEnum otherEnum;
}
public static class Main {
public static void main(String[] args) throws Exception {
set(System.currentTimeMillis() > 0 ? OtherEnum.C : OtherEnum.D);
System.out.println(MyEnum.A.otherEnum.ordinal());
}
public static void set(OtherEnum otherEnum) {
MyEnum.A.otherEnum = otherEnum;
}
}
}