// 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.graph.classmerging;

import com.android.tools.r8.graph.AppView;
import com.android.tools.r8.graph.DexType;
import com.android.tools.r8.shaking.AppInfoWithLiveness;
import java.util.Collection;
import java.util.Set;
import java.util.function.BiConsumer;

public interface MergedClasses {

  void forEachMergeGroup(BiConsumer<Set<DexType>, DexType> consumer);

  DexType getMergeTargetOrDefault(DexType type, DexType defaultValue);

  Collection<DexType> getSourcesFor(DexType type);

  boolean isMergeSource(DexType type);

  default boolean isMergeSourceOrTarget(DexType type) {
    return isMergeSource(type) || isMergeTarget(type);
  }

  boolean isMergeTarget(DexType type);

  boolean verifyAllSourcesPruned(AppView<AppInfoWithLiveness> appView);
}