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// Copyright (c) 2021, 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.classmerging.horizontal.interfaces;
import static com.android.tools.r8.utils.codeinspector.Matchers.isImplementing;
import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent;
import static org.hamcrest.MatcherAssert.assertThat;
import com.android.tools.r8.NeverClassInline;
import com.android.tools.r8.NeverInline;
import com.android.tools.r8.NoHorizontalClassMerging;
import com.android.tools.r8.NoUnusedInterfaceRemoval;
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.HorizontallyMergedClassesInspector;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
@RunWith(Parameterized.class)
public class CollisionWithDefaultMethodOutsideMergeGroupClassTest extends TestBase {
private final TestParameters parameters;
@Parameterized.Parameters(name = "{0}")
public static TestParametersCollection data() {
return getTestParameters().withAllRuntimesAndApiLevels().build();
}
public CollisionWithDefaultMethodOutsideMergeGroupClassTest(TestParameters parameters) {
this.parameters = parameters;
}
@Test
public void test() throws Exception {
testForR8(parameters.getBackend())
.addInnerClasses(getClass())
.addKeepMainRule(Main.class)
// I and J are not eligible for merging, since class A (implements I) inherits a default m()
// method from K, which is also on J.
.addHorizontallyMergedClassesInspector(
HorizontallyMergedClassesInspector::assertNoClassesMerged)
.enableInliningAnnotations()
.enableNeverClassInliningAnnotations()
.enableNoHorizontalClassMergingAnnotations()
.enableNoUnusedInterfaceRemovalAnnotations()
.enableNoVerticalClassMergingAnnotations()
.setMinApi(parameters.getApiLevel())
.compile()
.inspect(
inspector -> {
ClassSubject aClassSubject = inspector.clazz(A.class);
assertThat(aClassSubject, isPresent());
assertThat(aClassSubject, isImplementing(inspector.clazz(I.class)));
assertThat(aClassSubject, isImplementing(inspector.clazz(K.class)));
ClassSubject bClassSubject = inspector.clazz(B.class);
assertThat(bClassSubject, isPresent());
assertThat(bClassSubject, isImplementing(inspector.clazz(J.class)));
})
.run(parameters.getRuntime(), Main.class)
.assertSuccessWithOutputLines("K", "J");
}
static class Main {
public static void main(String[] args) {
new A().m();
new B().m();
}
}
@NoUnusedInterfaceRemoval
@NoVerticalClassMerging
interface I {}
@NoUnusedInterfaceRemoval
@NoVerticalClassMerging
interface J {
@NeverInline
default void m() {
System.out.println("J");
}
}
@NoHorizontalClassMerging
@NoUnusedInterfaceRemoval
@NoVerticalClassMerging
interface K {
@NeverInline
default void m() {
System.out.println("K");
}
}
@NeverClassInline
@NoHorizontalClassMerging
static class A implements I, K {}
@NeverClassInline
@NoHorizontalClassMerging
static class B implements J {}
}