| // Copyright (c) 2021, 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.optimize.classinliner; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import com.android.tools.r8.NeverSingleCallerInline; |
| 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; |
| |
| // This is a reproduction of b/176381203. |
| @RunWith(Parameterized.class) |
| public class ClassInlinerCheckCastWithUnknownReturnTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public ClassInlinerCheckCastWithUnknownReturnTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test() |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .enableNeverSingleCallerInlineAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), Main.class) |
| .assertFailureWithErrorThatThrows(ClassCastException.class) |
| .inspectFailure( |
| inspector -> { |
| ClassSubject aSubject = inspector.clazz(A.class); |
| assertThat(aSubject, isPresent()); |
| }); |
| } |
| |
| public static class A { |
| |
| public int number; |
| |
| @NeverSingleCallerInline |
| public Object abs() { |
| if (number == 0) { |
| return new Object(); |
| } |
| return this; |
| } |
| } |
| |
| public static class Main { |
| |
| public static void main(String[] args) { |
| A a = new A(); |
| a.number = args.length; |
| A returnedA = (A) (a.abs()); |
| System.out.println("Hello World"); |
| } |
| } |
| } |