| // 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.shaking.ifrule.interfacemethoddesugaring; |
| |
| import static com.android.tools.r8.ir.desugar.InterfaceMethodRewriter.COMPANION_CLASS_NAME_SUFFIX; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPublic; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isStatic; |
| import static org.hamcrest.CoreMatchers.allOf; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NeverMerge; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.utils.AndroidApiLevel; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import org.junit.Test; |
| |
| public class IfRuleWithInterfaceMethodDesugaringTest extends TestBase { |
| |
| @Test |
| public void test() throws Exception { |
| String expectedOutput = |
| StringUtils.lines("In Interface.staticMethod()", "In Interface.virtualMethod()"); |
| |
| testForJvm().addTestClasspath().run(TestClass.class).assertSuccessWithOutput(expectedOutput); |
| |
| CodeInspector inspector = |
| testForR8(Backend.DEX) |
| .addInnerClasses(IfRuleWithInterfaceMethodDesugaringTest.class) |
| .addKeepMainRule(TestClass.class) |
| .addKeepRules( |
| "-if class " + Interface.class.getTypeName() + " {", |
| " !public static void staticMethod();", |
| "}", |
| "-keep class " + Unused1.class.getTypeName(), |
| "-if class " + Interface.class.getTypeName() + " {", |
| " !public !static void virtualMethod();", |
| "}", |
| "-keep class " + Unused2.class.getTypeName()) |
| .allowUnusedProguardConfigurationRules() |
| .enableInliningAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .enableMergeAnnotations() |
| .setMinApi(AndroidApiLevel.M) |
| .run(TestClass.class) |
| .assertSuccessWithOutput(expectedOutput) |
| .inspector(); |
| |
| ClassSubject classSubject = |
| inspector.clazz(Interface.class.getTypeName() + COMPANION_CLASS_NAME_SUFFIX); |
| assertThat(classSubject, isPresent()); |
| assertEquals(2, classSubject.allMethods().size()); |
| |
| MethodSubject staticMethodSubject = classSubject.uniqueMethodWithName("staticMethod"); |
| assertThat(staticMethodSubject, allOf(isPresent(), isPublic(), isStatic())); |
| |
| // TODO(b/120764902): MethodSubject.getOriginalName() not working in presence of desugaring. |
| MethodSubject virtualMethodSubject = |
| classSubject.allMethods().stream() |
| .filter(subject -> subject != staticMethodSubject) |
| .findFirst() |
| .get(); |
| assertThat(virtualMethodSubject, allOf(isPresent(), isPublic(), isStatic())); |
| |
| // TODO(b/122875545): The Unused class should be present due to the -if rule. |
| assertThat(inspector.clazz(Unused1.class), not(isPresent())); |
| assertThat(inspector.clazz(Unused2.class), not(isPresent())); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| Interface.staticMethod(); |
| new InterfaceImpl().virtualMethod(); |
| } |
| } |
| |
| @NeverClassInline |
| @NeverMerge |
| interface Interface { |
| |
| @NeverInline |
| static void staticMethod() { |
| System.out.println("In Interface.staticMethod()"); |
| } |
| |
| @NeverInline |
| default void virtualMethod() { |
| System.out.println("In Interface.virtualMethod()"); |
| } |
| } |
| |
| @NeverClassInline |
| static class InterfaceImpl implements Interface {} |
| |
| static class Unused1 {} |
| |
| static class Unused2 {} |
| } |