| // Copyright (c) 2023, 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.keepanno; |
| |
| import com.android.tools.r8.keepanno.annotations.KeepTarget; |
| import com.android.tools.r8.keepanno.annotations.UsesReflection; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.google.common.collect.ImmutableList; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| |
| @RunWith(Parameterized.class) |
| public class KeepNameAndInstanceOfTest extends KeepAnnoTestBase { |
| |
| static final String EXPECTED = StringUtils.lines("on Base", "on Sub"); |
| static final String EXPECTED_SHRINKER = StringUtils.lines("on Base", "No method on Sub"); |
| |
| @Parameter public KeepAnnoParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static List<KeepAnnoParameters> data() { |
| return createParameters( |
| getTestParameters().withDefaultRuntimes().withApiLevel(AndroidApiLevel.B).build()); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForKeepAnno(parameters) |
| .enableNativeInterpretation() |
| .addProgramClasses(getInputClasses()) |
| .addKeepMainRule(TestClass.class) |
| .setExcludedOuterClass(getClass()) |
| .run(TestClass.class) |
| .assertSuccessWithOutput(parameters.isReference() ? EXPECTED : EXPECTED_SHRINKER); |
| } |
| |
| public List<Class<?>> getInputClasses() { |
| return ImmutableList.of(TestClass.class, Base.class, Sub.class, A.class); |
| } |
| |
| static class Base { |
| |
| static void hiddenMethod() { |
| System.out.println("on Base"); |
| } |
| } |
| |
| static class Sub extends Base { |
| |
| static void hiddenMethod() { |
| System.out.println("on Sub"); |
| } |
| } |
| |
| static class A { |
| |
| @UsesReflection({ |
| @KeepTarget( |
| // Restricting the matching to Base will cause Sub to be stripped. |
| classConstant = Base.class, |
| instanceOfClassConstant = Base.class, |
| methodName = "hiddenMethod") |
| }) |
| public void foo(Base base) throws Exception { |
| base.getClass().getDeclaredMethod("hiddenMethod").invoke(null); |
| } |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) throws Exception { |
| try { |
| new A().foo(new Base()); |
| } catch (Exception e) { |
| System.out.println("No method on Base"); |
| } |
| try { |
| new A().foo(new Sub()); |
| } catch (Exception e) { |
| System.out.println("No method on Sub"); |
| } |
| } |
| } |
| } |