| // 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.repackage; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresentAndRenamed; |
| import static org.hamcrest.CoreMatchers.containsString; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| 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.ClassSubject; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class RepackageLambdaMissingInterfaceTest extends RepackageTestBase { |
| |
| public RepackageLambdaMissingInterfaceTest( |
| String flattenPackageHierarchyOrRepackageClasses, TestParameters parameters) { |
| super(flattenPackageHierarchyOrRepackageClasses, parameters); |
| } |
| |
| @Test |
| public void testR8WithoutRepackaging() throws Exception { |
| runTest(false) |
| .assertFailureWithErrorThatThrowsIf(parameters.isDexRuntime(), AbstractMethodError.class) |
| .assertSuccessWithOutputLinesIf(parameters.isCfRuntime(), "0"); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| runTest(true) |
| .assertFailureWithErrorThatThrowsIf(parameters.isDexRuntime(), AbstractMethodError.class) |
| .assertSuccessWithOutputLinesIf(parameters.isCfRuntime(), "0"); |
| } |
| |
| private R8TestRunResult runTest(boolean repackage) throws Exception { |
| return testForR8(parameters.getBackend()) |
| .addProgramClasses(ClassWithLambda.class, Main.class) |
| .addKeepMainRule(Main.class) |
| .addKeepAttributeInnerClassesAndEnclosingMethod() |
| .applyIf(repackage, this::configureRepackaging) |
| .setMinApi(parameters.getApiLevel()) |
| .addDontWarn(MissingInterface.class) |
| .noClassInlining() |
| .enableInliningAnnotations() |
| .compile() |
| .inspect( |
| inspector -> { |
| // Find the generated lambda class |
| if (!parameters.isDexRuntime()) { |
| assertThat(ClassWithLambda.class, isNotRepackaged(inspector)); |
| return; |
| } |
| if (repackage) { |
| assertThat(ClassWithLambda.class, isRepackaged(inspector)); |
| } else { |
| ClassSubject classWithLambdaSubject = inspector.clazz(ClassWithLambda.class); |
| assertThat(classWithLambdaSubject, isPresentAndRenamed()); |
| } |
| inspector.forAllClasses( |
| clazz -> { |
| if (clazz.isSynthesizedJavaLambdaClass()) { |
| assertThat( |
| clazz.getFinalName(), containsString(Main.class.getPackage().getName())); |
| } |
| }); |
| }) |
| .addRunClasspathClasses(MissingInterface.class) |
| .run(parameters.getRuntime(), Main.class); |
| } |
| |
| interface MissingInterface { |
| |
| void bar(int x); |
| } |
| |
| public static class ClassWithLambda { |
| |
| @NeverInline |
| public static void callWithLambda() { |
| Main.foo(System.out::println); |
| } |
| } |
| |
| public static class Main { |
| |
| private static int argCount; |
| |
| @NeverInline |
| public static void foo(MissingInterface i) { |
| i.bar(argCount); |
| } |
| |
| public static void main(String[] args) { |
| argCount = args.length; |
| ClassWithLambda.callWithLambda(); |
| } |
| } |
| } |