| // Copyright (c) 2018, 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.bridgeremoval; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.junit.Assert.assertThat; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.jasmin.JasminBuilder; |
| import com.android.tools.r8.jasmin.JasminBuilder.ClassBuilder; |
| import com.android.tools.r8.utils.AndroidApp; |
| 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 com.google.common.collect.ImmutableList; |
| import org.junit.Test; |
| |
| public class EmptyBridgeTest extends TestBase { |
| |
| @Test |
| public void test() throws Exception { |
| JasminBuilder jasminBuilder = new JasminBuilder(); |
| |
| ClassBuilder abs = jasminBuilder.addClass("Abs"); |
| abs.setAccess("public abstract"); |
| abs.addMethod("public bridge abstract", "emptyBridge", ImmutableList.of(), "V"); |
| |
| ClassBuilder cls = jasminBuilder.addClass("Main"); |
| cls.addVirtualMethod("bogus", ImmutableList.of(), "V", |
| ".limit stack 3", |
| ".limit locals 2", |
| "getstatic java/lang/System/out Ljava/io/PrintStream;", |
| "ldc \"foo\"", |
| "invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V", |
| "return"); |
| cls.addMainMethod( |
| ".limit stack 4", |
| ".limit locals 2", |
| "new " + cls.name, |
| "dup", |
| "invokespecial " + cls.name + "/<init>()V", |
| "astore_0", |
| "aload_0", |
| "invokevirtual " + cls.name + "/bogus()V", |
| "return"); |
| |
| String absClassName = abs.name; |
| String mainClassName = cls.name; |
| String proguardConfig = |
| "-allowaccessmodification" + System.lineSeparator() |
| + "-keep class " + mainClassName + "{ *; }" + System.lineSeparator() |
| + "-keep class " + absClassName + "{ *; }"; |
| AndroidApp processedApp = compileWithR8(jasminBuilder.build(), proguardConfig); |
| |
| CodeInspector inspector = new CodeInspector(processedApp); |
| ClassSubject classSubject = inspector.clazz(absClassName); |
| assertThat(classSubject, isPresent()); |
| MethodSubject methodSubject = classSubject.method("void", "emptyBridge", ImmutableList.of()); |
| assertThat(methodSubject, isPresent()); |
| } |
| |
| } |