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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.bridgeremoval.hoisting;
import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent;
import static org.hamcrest.CoreMatchers.not;
import static org.hamcrest.MatcherAssert.assertThat;
import com.android.tools.r8.NeverClassInline;
import com.android.tools.r8.NeverInline;
import com.android.tools.r8.TestBase;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.TestParametersCollection;
import com.android.tools.r8.utils.codeinspector.ClassSubject;
import com.android.tools.r8.utils.codeinspector.CodeInspector;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
@RunWith(Parameterized.class)
public class FinalBridgeHoistingTest extends TestBase {
private final TestParameters parameters;
@Parameterized.Parameters(name = "{0}")
public static TestParametersCollection data() {
return getTestParameters().withAllRuntimesAndApiLevels().build();
}
public FinalBridgeHoistingTest(TestParameters parameters) {
this.parameters = parameters;
}
@Test
public void test() throws Exception {
testForR8(parameters.getBackend())
.addProgramClasses(TestClass.class, A.class, B1.class)
.addProgramClassFileData(
transformer(B2.class)
.setBridge(B2.class.getDeclaredMethod("virtualBridge", Object.class))
.transform())
.addKeepMainRule(TestClass.class)
.addKeepClassAndMembersRules(B1.class)
.enableInliningAnnotations()
.enableNeverClassInliningAnnotations()
.setMinApi(parameters.getApiLevel())
.compile()
.inspect(this::inspect)
.run(parameters.getRuntime(), TestClass.class)
.assertSuccessWithOutputLines("Hello world!");
}
private void inspect(CodeInspector inspector) {
ClassSubject aClassSubject = inspector.clazz(A.class);
assertThat(aClassSubject, isPresent());
assertThat(aClassSubject.uniqueMethodWithName("m"), isPresent());
assertThat(aClassSubject.uniqueMethodWithName("virtualBridge"), isPresent());
ClassSubject b1ClassSubject = inspector.clazz(B1.class);
assertThat(b1ClassSubject, isPresent());
assertThat(b1ClassSubject.uniqueMethodWithName("virtualBridge"), isPresent());
ClassSubject b2ClassSubject = inspector.clazz(B2.class);
assertThat(b2ClassSubject, isPresent());
assertThat(b2ClassSubject.uniqueMethodWithName("virtualBridge"), not(isPresent()));
}
static class TestClass {
public static void main(String[] args) {
System.out.print(new B1().virtualBridge("Hello"));
System.out.println(new B2().virtualBridge(" world!"));
}
}
static class A {
@NeverInline
public Object m(String arg) {
return System.currentTimeMillis() >= 0 ? arg : null;
}
}
@NeverClassInline
static class B1 extends A {
public String virtualBridge(Object o) {
return (String) m((String) o);
}
}
@NeverClassInline
static class B2 extends A {
@NeverInline
public final /*bridge*/ String virtualBridge(Object o) {
return (String) m((String) o);
}
}
}