| // 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.ir.analysis.type; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.KeepConstantArguments; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| 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 RecursivePhiTypeTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimes().build(); |
| } |
| |
| public RecursivePhiTypeTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(RecursivePhiTypeTest.class) |
| .addKeepMainRule(TestClass.class) |
| .enableConstantArgumentAnnotations() |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getRuntime()) |
| .compile() |
| .inspect( |
| inspector -> { |
| ClassSubject greeterSubject = inspector.clazz(Greeter.class); |
| assertThat(greeterSubject, not(isPresent())); |
| |
| ClassSubject greeterImplSubject = inspector.clazz(GreeterImpl.class); |
| assertThat(greeterImplSubject, isPresent()); |
| }) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("Hello world!"); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| getGreeter(null).greet(); |
| } |
| |
| @KeepConstantArguments |
| static Greeter getGreeter(Greeter result) { |
| while (!(result instanceof GreeterImpl)) { |
| if (System.currentTimeMillis() >= 0) { |
| result = create(); |
| } |
| } |
| return result; |
| } |
| |
| @NeverInline |
| static Greeter create() { |
| return new GreeterImpl(); |
| } |
| } |
| |
| static class Greeter { |
| |
| public void greet() { |
| throw new RuntimeException("Unreachable"); |
| } |
| } |
| |
| static class GreeterImpl extends Greeter { |
| |
| @Override |
| public void greet() { |
| System.out.println("Hello world!"); |
| } |
| } |
| } |