| // 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 static com.android.tools.r8.utils.codeinspector.Matchers.isAbsent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.keepanno.annotations.KeepBinding; |
| import com.android.tools.r8.keepanno.annotations.KeepCondition; |
| import com.android.tools.r8.keepanno.annotations.KeepEdge; |
| import com.android.tools.r8.keepanno.annotations.KeepItemKind; |
| import com.android.tools.r8.keepanno.annotations.KeepTarget; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import com.google.common.collect.ImmutableList; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class KeepSameMethodTest extends TestBase { |
| |
| static final String EXPECTED = StringUtils.lines("foo"); |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withDefaultRuntimes().withApiLevel(AndroidApiLevel.B).build(); |
| } |
| |
| public KeepSameMethodTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testReference() throws Exception { |
| testForRuntime(parameters) |
| .addProgramClasses(getInputClasses()) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testWithRuleExtraction() throws Exception { |
| testForR8(parameters.getBackend()) |
| .enableExperimentalKeepAnnotations() |
| .addProgramClasses(getInputClasses()) |
| .addKeepMainRule(TestClass.class) |
| .setMinApi(parameters) |
| // The "all members" target will create an unused "all fields" rule. |
| .allowUnusedProguardConfigurationRules() |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED) |
| .inspect(this::checkOutput); |
| } |
| |
| public List<Class<?>> getInputClasses() { |
| return ImmutableList.of(TestClass.class, A.class); |
| } |
| |
| private void checkOutput(CodeInspector inspector) throws Exception { |
| assertThat(inspector.clazz(A.class).method(A.class.getMethod("foo")), isPresent()); |
| // TODO(b/265892343): The extracted rule will match all params so this is incorrectly kept. |
| assertThat(inspector.clazz(A.class).method(A.class.getMethod("foo", int.class)), isPresent()); |
| // Bar is unused and thus removed. |
| assertThat(inspector.clazz(A.class).uniqueMethodWithOriginalName("bar"), isAbsent()); |
| } |
| |
| /** |
| * This conditional rule expresses that if any class in the program has a live member then that |
| * same member is to be kept (soft-pinned, e.g., no inlining, no renaming of the member, etc.). |
| */ |
| @KeepEdge( |
| bindings = { |
| @KeepBinding( |
| bindingName = "AnyMemberOnA", |
| kind = KeepItemKind.ONLY_MEMBERS, |
| classConstant = A.class) |
| }, |
| preconditions = {@KeepCondition(memberFromBinding = "AnyMemberOnA")}, |
| consequences = {@KeepTarget(memberFromBinding = "AnyMemberOnA")}) |
| static class A { |
| |
| public void foo() { |
| System.out.println(new Exception().getStackTrace()[0].getMethodName()); |
| } |
| |
| // TODO(b/265892343): There is no backref support for "any params", thus this method is hit by |
| // the extracted rule. |
| public void foo(int unused) { |
| System.out.println(new Exception().getStackTrace()[0].getMethodName()); |
| } |
| |
| public void bar() { |
| System.out.println(new Exception().getStackTrace()[0].getMethodName()); |
| } |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) throws Exception { |
| new A().foo(); |
| } |
| } |
| } |