| // 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.resolution.interfacetargets; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| import static org.junit.Assume.assumeTrue; |
| |
| import com.android.tools.r8.CompilationFailedException; |
| 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.graph.AppView; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexProgramClass; |
| import com.android.tools.r8.graph.LookupResult; |
| import com.android.tools.r8.graph.MethodResolutionResult; |
| import com.android.tools.r8.shaking.AppInfoWithLiveness; |
| import com.google.common.collect.ImmutableSet; |
| import java.io.IOException; |
| import java.util.HashSet; |
| import java.util.Set; |
| import java.util.concurrent.ExecutionException; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class DefaultMethodLambdaTest extends TestBase { |
| |
| private static final String[] EXPECTED = new String[] {"Lambda.foo", "I.bar"}; |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public DefaultMethodLambdaTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testResolution() throws Exception { |
| assumeTrue(parameters.useRuntimeAsNoneRuntime()); |
| AppView<AppInfoWithLiveness> appView = |
| computeAppViewWithLiveness( |
| buildClassesWithTestingAnnotations(I.class, A.class, Main.class) |
| .addLibraryFile(parameters.getDefaultRuntimeLibrary()) |
| .build(), |
| Main.class); |
| AppInfoWithLiveness appInfo = appView.appInfo(); |
| DexMethod method = buildNullaryVoidMethod(I.class, "bar", appInfo.dexItemFactory()); |
| MethodResolutionResult resolutionResult = |
| appInfo.resolveMethodOnInterface(method.holder, method); |
| DexProgramClass context = |
| appView.definitionForProgramType(buildType(Main.class, appInfo.dexItemFactory())); |
| LookupResult lookupResult = resolutionResult.lookupVirtualDispatchTargets(context, appInfo); |
| assertTrue(lookupResult.isLookupResultSuccess()); |
| Set<String> targets = new HashSet<>(); |
| lookupResult.forEach( |
| target -> targets.add(target.getDefinition().qualifiedName()), lambda -> fail()); |
| ImmutableSet<String> expected = |
| ImmutableSet.of(A.class.getTypeName() + ".bar", I.class.getTypeName() + ".bar"); |
| assertEquals(expected, targets); |
| } |
| |
| @Test |
| public void testRuntime() throws IOException, CompilationFailedException, ExecutionException { |
| testForRuntime(parameters) |
| .addInnerClasses(DefaultMethodLambdaTest.class) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines(EXPECTED); |
| } |
| |
| @Test |
| public void testR8() throws IOException, CompilationFailedException, ExecutionException { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(DefaultMethodLambdaTest.class) |
| .enableInliningAnnotations() |
| .enableNoVerticalClassMergingAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .addKeepMainRule(Main.class) |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines(EXPECTED); |
| } |
| |
| @NoVerticalClassMerging |
| public interface I { |
| void foo(); |
| |
| default void bar() { |
| System.out.println("I.bar"); |
| } |
| } |
| |
| @NeverClassInline |
| public static class A implements I { |
| |
| @Override |
| @NeverInline |
| public void foo() { |
| System.out.println("A.foo"); |
| } |
| |
| @Override |
| public void bar() { |
| System.out.println("A.bar"); |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| if (args.length == 0) { |
| callI(() -> System.out.println("Lambda.foo")); |
| } else { |
| callI(new A()); |
| } |
| } |
| |
| private static void callI(I i) { |
| i.foo(); |
| i.bar(); |
| } |
| } |
| } |