content: /*
   * Copyright (C) 2011 The Android Open Source Project
   *
   * 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 com.taobao.android.dx.io.instructions;
  
  import java.util.HashMap;
  
  /**
   * Map from addresses to addresses, where addresses are all
   * {@code int}s.
   */
  public final class AddressMap {
      /** underlying map. TODO: This might be too inefficient. */
      private final HashMap<Integer,Integer> map;
  
      /**
       * Constructs an instance.
       */
      public AddressMap() {
          map = new HashMap<Integer,Integer>();
      }
  
      /**
       * Gets the value address corresponding to the given key address. Returns
       * {@code -1} if there is no mapping.
       */
      public int get(int keyAddress) {
          Integer value = map.get(keyAddress);
          return (value == null) ? -1 : value;
      }
  
      /**
       * Sets the value address associated with the given key address.
       */
      public void put(int keyAddress, int valueAddress) {
          map.put(keyAddress, valueAddress);
      }
  }
  