| // Copyright (c) 2020, 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 org.objectweb.asm.Opcodes.INVOKESPECIAL; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| 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 InvokeSpecialOnSameClassRecursionTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public InvokeSpecialOnSameClassRecursionTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testRuntime() throws Exception { |
| testForRuntime(parameters.getRuntime(), parameters.getApiLevel()) |
| .addProgramClasses(Main.class, B.class) |
| .addProgramClassFileData(getClassWithTransformedInvoked()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("A.foo -1"); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(Main.class, B.class) |
| .addProgramClassFileData(getClassWithTransformedInvoked()) |
| .addKeepMainRule(Main.class) |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines("A.foo -1"); |
| } |
| |
| private byte[] getClassWithTransformedInvoked() throws IOException { |
| return transformer(A.class) |
| .transformMethodInsnInMethod( |
| "foo", |
| (opcode, owner, name, descriptor, isInterface, continuation) -> { |
| if (name.equals("foo")) { |
| continuation.visitMethodInsn(INVOKESPECIAL, owner, name, descriptor, isInterface); |
| } else { |
| continuation.visitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| } |
| }) |
| .transform(); |
| } |
| |
| static class A { |
| private int i = 5; |
| |
| public void foo() { |
| if (i-- > 0) { |
| foo(); |
| } else { |
| System.out.println("A.foo " + i); |
| } |
| } |
| } |
| |
| static class B extends A { |
| public void run() { |
| super.foo(); |
| } |
| |
| public void foo() { |
| throw new RuntimeException("never called"); |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| new B().run(); |
| } |
| } |
| } |