| // Copyright (c) 2019, 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.access.indirectmethod; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.TestRunResult; |
| 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.ResolutionResult; |
| import com.android.tools.r8.resolution.access.indirectmethod.pkg.C; |
| import com.android.tools.r8.shaking.AppInfoWithLiveness; |
| import com.android.tools.r8.utils.OptionalBool; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.google.common.collect.ImmutableList; |
| import java.io.IOException; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class IndirectMethodAccessTest extends TestBase { |
| |
| static final String EXPECTED = StringUtils.lines("A::foo"); |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public IndirectMethodAccessTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| public List<Class<?>> getClasses() { |
| return ImmutableList.of(Main.class, A.class, C.class); |
| } |
| |
| private List<byte[]> getTransforms() throws IOException { |
| return ImmutableList.of( |
| // Compilation with javac will generate a synthetic bridge for foo. Remove it. |
| transformer(B.class) |
| .removeMethods((access, name, descriptor, signature, exceptions) -> name.equals("foo")) |
| .transform()); |
| } |
| |
| @Test |
| public void testResolutionAccess() throws Exception { |
| AppView<AppInfoWithLiveness> appView = |
| computeAppViewWithLiveness( |
| buildClasses(getClasses()).addClassProgramData(getTransforms()).build(), Main.class); |
| AppInfoWithLiveness appInfo = appView.appInfo(); |
| DexProgramClass cClass = |
| appInfo.definitionFor(buildType(C.class, appInfo.dexItemFactory())).asProgramClass(); |
| DexMethod bar = buildMethod(B.class.getMethod("foo"), appInfo.dexItemFactory()); |
| ResolutionResult resolutionResult = appInfo.resolveMethod(bar.holder, bar); |
| assertEquals( |
| OptionalBool.TRUE, resolutionResult.isAccessibleForVirtualDispatchFrom(cClass, appInfo)); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForRuntime(parameters) |
| .addProgramClasses(getClasses()) |
| .addProgramClassFileData(getTransforms()) |
| .run(parameters.getRuntime(), Main.class) |
| .apply(this::checkExpectedResult); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(getClasses()) |
| .addProgramClassFileData(getTransforms()) |
| .setMinApi(parameters.getApiLevel()) |
| .addKeepMainRule(Main.class) |
| .run(parameters.getRuntime(), Main.class) |
| .apply(this::checkExpectedResult); |
| } |
| |
| private void checkExpectedResult(TestRunResult<?> result) { |
| result.assertSuccessWithOutput(EXPECTED); |
| } |
| |
| /* non-public */ static class A { |
| public void foo() { |
| System.out.println("A::foo"); |
| } |
| } |
| |
| public static class B extends A { |
| // Intentionally emtpy. |
| // Provides access to A.foo from outside this package, eg, from pkg.C::bar(). |
| } |
| |
| static class Main { |
| public static void main(String[] args) { |
| new C().bar(); |
| } |
| } |
| } |