src/main/java/com/android/tools/r8/horizontalclassmerging/policies/NoKeepRules.java

// 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.horizontalclassmerging.policies;

import com.android.tools.r8.graph.AppView;
import com.android.tools.r8.graph.DexProgramClass;
import com.android.tools.r8.graph.DexType;
import com.android.tools.r8.horizontalclassmerging.SingleClassPolicy;
import com.android.tools.r8.shaking.AppInfoWithLiveness;
import com.google.common.collect.Iterables;

public class NoKeepRules extends SingleClassPolicy {
  private final AppView<AppInfoWithLiveness> appView;

  public NoKeepRules(AppView<AppInfoWithLiveness> appView) {
    this.appView = appView;
  }

  @Override
  public boolean canMerge(DexProgramClass program) {
    DexType type = program.getType();
    boolean anyPinned =
        appView.appInfo().isPinned(type)
            || Iterables.any(
                program.members(), member -> appView.appInfo().isPinned(member.toReference()));
    return !anyPinned;
  }
}