| // 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.optimize.argumentpropagation; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| 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.references.Reference; |
| import com.android.tools.r8.utils.BooleanBox; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class ParameterWithUnknownArgumentInformationWidenedToUnknownTest extends TestBase { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection parameters() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| @Test |
| public void test() throws Exception { |
| BooleanBox inspected = new BooleanBox(); |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .addArgumentPropagatorCodeScannerResultInspector( |
| inspector -> |
| inspector |
| .assertHasUnknownMethodState( |
| Reference.methodFromMethod(Main.class.getDeclaredMethod("test", A.class))) |
| .apply(ignore -> inspected.set())) |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithOutputLines(null, "A"); |
| assertTrue(inspected.isTrue()); |
| } |
| |
| static class Main { |
| |
| public static void main(String[] args) { |
| A alwaysNull = null; |
| A neverNull = new A(); |
| test(alwaysNull); |
| test(neverNull); |
| } |
| |
| @NeverInline |
| static void test(A a) { |
| System.out.println(a); |
| } |
| } |
| |
| static class A { |
| |
| @Override |
| public String toString() { |
| return "A"; |
| } |
| } |
| } |