| // Copyright (c) 2020, 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.canonicalization; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.NeverClassInline; |
| 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.CodeInspector; |
| import com.android.tools.r8.utils.codeinspector.InstructionSubject; |
| 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 EffectivelyFinalFieldCanonicalizationTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withDexRuntimes().withAllApiLevels().build(); |
| } |
| |
| public EffectivelyFinalFieldCanonicalizationTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(EffectivelyFinalFieldCanonicalizationTest.class) |
| .addKeepMainRule(TestClass.class) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect(this::inspect) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutputLines("[R8] Foo", "[R8] Bar"); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| ClassSubject testClassSubject = inspector.clazz(TestClass.class); |
| assertThat(testClassSubject, isPresent()); |
| |
| MethodSubject mainMethodSubject = testClassSubject.mainMethod(); |
| assertThat(mainMethodSubject, isPresent()); |
| assertEquals( |
| 1, mainMethodSubject.streamInstructions().filter(InstructionSubject::isStaticGet).count()); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| Printer.INSTANCE.print("Foo"); |
| Printer.INSTANCE.print("Bar"); |
| } |
| } |
| |
| @NeverClassInline |
| static class Printer { |
| |
| static Printer INSTANCE = new Printer("[R8]"); |
| |
| private String tag; |
| |
| Printer(String tag) { |
| this.tag = tag; |
| } |
| |
| @NeverInline |
| void print(String message) { |
| System.out.println(tag + " " + message); |
| } |
| } |
| } |