src/test/java/com/android/tools/r8/ir/optimize/membervaluepropagation/NoConstructorPropagationTest.java

// 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.membervaluepropagation;

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 org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class NoConstructorPropagationTest extends TestBase {

  private final TestParameters parameters;

  @Parameters(name = "{0}")
  public static TestParametersCollection data() {
    return getTestParameters().withAllRuntimes().build();
  }

  public NoConstructorPropagationTest(TestParameters parameters) {
    this.parameters = parameters;
  }

  @Test
  public void test() throws Exception {
    testForR8(parameters.getBackend())
        .addInnerClasses(NoConstructorPropagationTest.class)
        .addKeepMainRule(TestClass.class)
        .addKeepRules(
            "-assumenosideeffects class " + Greeter.class.getTypeName() + " {",
            "  <init>(...);",
            "}")
        .enableClassInliningAnnotations()
        .enableInliningAnnotations()
        .setMinApi(parameters.getRuntime())
        .run(parameters.getRuntime(), TestClass.class)
        .assertSuccessWithOutputLines("Hello world!");
  }

  static class TestClass {

    public static void main(String[] args) {
      new Greeter().greet();
    }
  }

  @NeverClassInline
  static class Greeter {

    @NeverInline
    public void greet() {
      System.out.println("Hello world!");
    }
  }
}