| // 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.optimize.staticizer; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.NeverClassInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NeverPropagateValue; |
| import com.android.tools.r8.NoHorizontalClassMerging; |
| 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.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.FieldSubject; |
| import com.android.tools.r8.utils.codeinspector.MethodSubject; |
| import com.google.common.collect.ImmutableList; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class InvokeStaticWithNullOutvalueTest extends TestBase { |
| private static final Class<?> MAIN = Main.class; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| // TODO(b/112831361): support for class staticizer in CF backend. |
| return getTestParameters().withDexRuntimes().withAllApiLevels().build(); |
| } |
| |
| private final TestParameters parameters; |
| |
| public InvokeStaticWithNullOutvalueTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(InvokeStaticWithNullOutvalueTest.class) |
| .addKeepMainRule(MAIN) |
| .enableInliningAnnotations() |
| .enableMemberValuePropagationAnnotations() |
| .enableNeverClassInliningAnnotations() |
| .enableNoHorizontalClassMergingAnnotations() |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), MAIN) |
| .assertSuccessWithOutputLines("Companion#boo", "Companion#foo") |
| .inspect(this::inspect); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| // Check if the instance is gone. |
| ClassSubject host = inspector.clazz(Host.class); |
| assertThat(host, isPresent()); |
| FieldSubject instance = host.uniqueFieldWithName("companion"); |
| assertThat(instance, not(isPresent())); |
| |
| ClassSubject companion = inspector.clazz(Host.Companion.class); |
| // TODO(b/158018192): This should not be present. |
| assertThat(companion, isPresent()); |
| |
| // Check if the candidate methods are staticized (if necessary) and migrated. |
| for (String name : ImmutableList.of("boo", "foo")) { |
| // TODO(b/158018192): This should be host and not companion. |
| MethodSubject oo = companion.uniqueMethodWithName(name); |
| assertThat(oo, isPresent()); |
| assertTrue(oo.isStatic()); |
| assertTrue( |
| oo.streamInstructions().anyMatch( |
| i -> i.isInvokeVirtual() |
| && i.getMethod().toSourceString().contains("PrintStream.println"))); |
| } |
| } |
| |
| @NeverClassInline |
| static class Host { |
| private static final Companion companion = new Companion(); |
| |
| @NoHorizontalClassMerging |
| static class Companion { |
| @NeverInline |
| @NeverPropagateValue |
| private static Object boo() { |
| System.out.println("Companion#boo"); |
| return null; |
| } |
| |
| @NeverInline |
| void foo() { |
| // Return value is not used, hence invoke-static without out-value. |
| boo(); |
| System.out.println("Companion#foo"); |
| } |
| } |
| |
| @NeverInline |
| static void bar() { |
| companion.foo(); |
| } |
| } |
| |
| static class Main { |
| public static void main(String[] args) { |
| Host.bar(); |
| } |
| } |
| } |