| // 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 com.android.tools.r8.utils.DescriptorUtils.getBinaryNameFromJavaType; |
| import static org.hamcrest.CoreMatchers.containsString; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assume.assumeTrue; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.ToolHelper.DexVm.Version; |
| 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.objectweb.asm.Opcodes; |
| |
| @RunWith(Parameterized.class) |
| public class InvokeSpecialToVirtualMethodTest extends TestBase { |
| |
| static final String EXPECTED = StringUtils.lines("Bar::foo", "Foo::foo", "Foo::foo", "Foo::foo"); |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimes().withAllApiLevels().build(); |
| } |
| |
| public InvokeSpecialToVirtualMethodTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testJvm() throws Exception { |
| assumeTrue(parameters.isCfRuntime()); |
| testForJvm() |
| .addProgramClasses(Base.class, Bar.class, TestClass.class) |
| .addProgramClassFileData(getFooTransform()) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testD8() throws Exception { |
| assumeTrue(parameters.isDexRuntime()); |
| testForD8() |
| .addProgramClasses(Base.class, Bar.class, TestClass.class) |
| .addProgramClassFileData(getFooTransform()) |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(Base.class, Bar.class, TestClass.class) |
| .addProgramClassFileData(getFooTransform()) |
| .setMinApi(parameters.getApiLevel()) |
| .addKeepMainRule(TestClass.class) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testDX() throws Exception { |
| assumeTrue(parameters.isDexRuntime()); |
| testForDX() |
| .addProgramClasses(Base.class, Bar.class, TestClass.class) |
| .addProgramClassFileData(getFooTransform()) |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertFailureWithErrorThatMatches(containsString(getExpectedOutput())); |
| } |
| |
| private String getExpectedOutput() { |
| if (parameters.getRuntime().asDex().getVm().getVersion().isOlderThanOrEqual(Version.V4_4_4)) { |
| return "VFY: unable to resolve direct method"; |
| } |
| return "was expected to be of type direct but instead was found to be of type virtual"; |
| } |
| |
| private byte[] getFooTransform() throws IOException { |
| return transformer(Foo.class) |
| .transformMethodInsnInMethod( |
| "foo", |
| (opcode, owner, name, descriptor, isInterface, visitor) -> { |
| if (Opcodes.INVOKESPECIAL == opcode) { |
| assertEquals(getBinaryNameFromJavaType(Base.class.getName()), owner); |
| assertEquals("foo", name); |
| visitor.visitMethodInsn( |
| opcode, |
| getBinaryNameFromJavaType(Foo.class.getName()), |
| name, |
| descriptor, |
| isInterface); |
| } else { |
| visitor.visitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| } |
| }) |
| .transform(); |
| } |
| |
| static class Base { |
| // Base method is never hit. |
| public void foo(int i) { |
| System.out.println("Base::foo"); |
| } |
| } |
| |
| static class Foo extends Base { |
| |
| public void foo(int i) { |
| if (i > 0) { |
| System.out.println("Foo::foo"); |
| // Will be converted to invoke-special Foo.foo. |
| super.foo(i - 1); |
| } |
| } |
| } |
| |
| static class Bar extends Foo { |
| |
| // Subclass override is only hit initially. |
| @Override |
| public void foo(int i) { |
| System.out.println("Bar::foo"); |
| super.foo(3); |
| } |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| new Bar().foo(0); |
| } |
| } |
| } |