| // 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.graph.invokespecial; |
| |
| import static com.android.tools.r8.utils.DescriptorUtils.getBinaryNameFromJavaType; |
| import static org.junit.Assert.assertEquals; |
| import static org.objectweb.asm.Opcodes.INVOKESPECIAL; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.StringUtils; |
| import java.io.IOException; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class InvokeSpecialSuperVirtualTest extends TestBase { |
| |
| private static final String EXPECTED_RESULT = |
| StringUtils.lines("A", "B", "A", "C", "A", "B", "A", "B", "A"); |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public InvokeSpecialSuperVirtualTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testRuntime() throws Exception { |
| testForRuntime(parameters.getRuntime(), parameters.getApiLevel()) |
| .addProgramClasses(A.class, C.class, Main.class) |
| .addProgramClassFileData(getClassBWithTransformedInvoked()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutput(EXPECTED_RESULT); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(A.class, C.class, Main.class) |
| .addProgramClassFileData(getClassBWithTransformedInvoked()) |
| .addKeepMainRule(Main.class) |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutput(EXPECTED_RESULT); |
| } |
| |
| private byte[] getClassBWithTransformedInvoked() throws IOException { |
| return transformer(B.class) |
| .transformMethodInsnInMethod( |
| "printAll", |
| (opcode, owner, name, descriptor, isInterface, continuation) -> { |
| if (name.equals("replace")) { |
| assertEquals(INVOKESPECIAL, opcode); |
| assertEquals(getBinaryNameFromJavaType(B.class.getTypeName()), owner); |
| continuation.visitMethodInsn(opcode, owner, "print", descriptor, isInterface); |
| } else { |
| continuation.visitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| } |
| }) |
| .transform(); |
| } |
| |
| public static class A { |
| |
| void print() { |
| System.out.println("A"); |
| } |
| } |
| |
| public static class B extends A { |
| |
| void print() { |
| System.out.println("B"); |
| super.print(); |
| } |
| |
| private void replace() { |
| System.out.println("Should not be called."); |
| } |
| |
| void printAll() { |
| // Invoke-super. |
| super.print(); |
| // Rewritten to Invoke-special to B::print. |
| replace(); |
| // Invoke-virtual. |
| print(); |
| } |
| } |
| |
| public static class C extends B { |
| |
| void print() { |
| System.out.println("C"); |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| new C().printAll(); |
| new B().printAll(); |
| } |
| } |
| } |