| // 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.shaking.assumevalues; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isAbsent; |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| 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 com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class AssumeValuesMaterializeFieldReadTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public AssumeValuesMaterializeFieldReadTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(Main.class) |
| .addKeepRules( |
| "-assumevalues class " + Main.class.getTypeName() + " {", |
| " static java.lang.Object get() return " + Main.class.getTypeName() + ".field;", |
| "}") |
| .enableInliningAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect( |
| inspector -> { |
| ClassSubject mainClassSubject = inspector.clazz(Main.class); |
| assertThat(mainClassSubject, isPresent()); |
| |
| MethodSubject getMethodSubject = mainClassSubject.uniqueMethodWithName("get"); |
| assertThat(getMethodSubject, isAbsent()); |
| }) |
| .run(parameters.getRuntime(), Main.class) |
| .assertSuccessWithEmptyOutput(); |
| } |
| |
| static class Main { |
| |
| static Object field = new Object(); |
| |
| public static void main(String[] args) { |
| if (field != get()) { |
| throw new RuntimeException(); |
| } |
| } |
| |
| @NeverInline |
| public static Object get() { |
| return new Object(); |
| } |
| } |
| } |