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ProGuardCORE is a free library to read, analyze, modify, and write Java class files.

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/*
 * ProGuardCORE -- library to process Java bytecode.
 *
 * Copyright (c) 2002-2022 Guardsquare NV
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package proguard.analysis.cpa.defaults;

import java.util.Map;
import java.util.Optional;
import proguard.analysis.cpa.util.TriFunction;

/**
 * This {@link LimitedHashMapAbstractState} represents a limited map to {@link
 * LatticeAbstractState}s with the semilattice operators lifted to the map.
 *
 * @author Dmitry Ivanov
 */
public class LimitedHashMapAbstractState<
        KeyT, AbstractSpaceT extends LatticeAbstractState>
    extends LimitedHashMap implements MapAbstractState {

  /**
   * Create an empty limited hash map abstract state.
   *
   * @param removeElement determines whether the map limit is reached if it returns an empty value,
   *     the map behaves as usual otherwise, the returned key is removed from the map
   */
  public LimitedHashMapAbstractState(
      TriFunction, KeyT, AbstractSpaceT, Optional>
          removeElement) {
    super(removeElement);
  }

  /**
   * Create an empty limited hash map abstract state with reserved initial capacity.
   *
   * @param initialCapacity the initial capacity of the hash table
   * @param removeElement determines whether the map limit is reached if it returns an empty value,
   *     the map behaves as usual otherwise, the returned key is removed from the map
   */
  public LimitedHashMapAbstractState(
      int initialCapacity,
      TriFunction, KeyT, AbstractSpaceT, Optional>
          removeElement) {
    super(initialCapacity, removeElement);
  }

  /**
   * Create a hash map abstract state from another map.
   *
   * @param m map which elements are used for initialization
   * @param removeElement determines whether the map limit is reached if it returns an empty value,
   *     the map behaves as usual otherwise, the returned key is removed from the map
   */
  public LimitedHashMapAbstractState(
      Map m,
      TriFunction, KeyT, AbstractSpaceT, Optional>
          removeElement) {
    super(m, removeElement);
  }

  // implementations for AbstractState

  @Override
  public LimitedHashMapAbstractState copy() {
    return new LimitedHashMapAbstractState<>(this, removeElement);
  }
}