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// 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());
}
}
}