content: /*
   * Copyright (C) 2007 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.dex.file;
  
  import com.taobao.android.dx.rop.cst.CstType;
  
  /**
   * Representation of a reference to an item inside a Dalvik file.
   */
  public abstract class IdItem extends IndexedItem {
      /**
       * {@code non-null;} the type constant for the defining class of
       * the reference
       */
      private final CstType type;
  
      /**
       * Constructs an instance.
       *
       * @param type {@code non-null;} the type constant for the defining
       * class of the reference
       */
      public IdItem(CstType type) {
          if (type == null) {
              throw new NullPointerException("type == null");
          }
  
          this.type = type;
      }
  
      /** {@inheritDoc} */
      @Override
      public void addContents(DexFile file) {
          TypeIdsSection typeIds = file.getTypeIds();
          typeIds.intern(type);
      }
  
      /**
       * Gets the type constant for the defining class of the
       * reference.
       *
       * @return {@code non-null;} the type constant
       */
      public final CstType getDefiningClass() {
          return type;
      }
  }
  