blob: f2a91a81f2769b7111bd38d6f752fd3c129abe15 [file] [log] [blame]
// 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.MatcherAssert.assertThat;
import static org.junit.Assert.assertFalse;
import com.android.tools.r8.NeverClassInline;
import com.android.tools.r8.NeverInline;
import com.android.tools.r8.NoVerticalClassMerging;
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 NonSuperclassBridgeHoistingTest extends TestBase {
private final TestParameters parameters;
@Parameterized.Parameters(name = "{0}")
public static TestParametersCollection data() {
return getTestParameters().withAllRuntimesAndApiLevels().build();
}
public NonSuperclassBridgeHoistingTest(TestParameters parameters) {
this.parameters = parameters;
}
@Test
public void test() throws Exception {
testForR8(parameters.getBackend())
.addProgramClasses(TestClass.class, A.class)
.addProgramClassFileData(
transformer(B.class)
.setBridge(B.class.getDeclaredMethod("bridge", Object.class))
.transform())
.addKeepMainRule(TestClass.class)
.enableInliningAnnotations()
.enableNoVerticalClassMergingAnnotations()
.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());
assertFalse(aClassSubject.getDexProgramClass().getMethodCollection().hasVirtualMethods());
ClassSubject b1ClassSubject = inspector.clazz(B.class);
assertThat(b1ClassSubject, isPresent());
assertThat(b1ClassSubject.uniqueMethodWithName("m"), isPresent());
assertThat(b1ClassSubject.uniqueMethodWithName("bridge"), isPresent());
}
static class TestClass {
public static void main(String[] args) {
System.out.println(new B().bridge("Hello world!"));
}
}
@NoVerticalClassMerging
static class A {}
@NeverClassInline
static class B extends A {
@NeverInline
public Object m(String arg) {
return System.currentTimeMillis() >= 0 ? arg : null;
}
// This bridge cannot be hoisted to A, since it targets a method on the enclosing class.
// Hoisting the bridge to A would lead to a NoSuchMethodError.
@NeverInline
public /*bridge*/ String bridge(Object o) {
return (String) m((String) o);
}
}
}