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.cf.attrib;
  
  import com.taobao.android.dx.rop.annotation.Annotations;
  import com.taobao.android.dx.util.MutabilityException;
  
  /**
   * Base class for annotations attributes.
   */
  public abstract class BaseAnnotations extends BaseAttribute {
      /** {@code non-null;} list of annotations */
      private final Annotations annotations;
  
      /** {@code >= 0;} attribute data length in the original classfile (not
       * including the attribute header) */
      private final int byteLength;
  
      /**
       * Constructs an instance.
       *
       * @param attributeName {@code non-null;} the name of the attribute
       * @param annotations {@code non-null;} the list of annotations
       * @param byteLength {@code >= 0;} attribute data length in the original
       * classfile (not including the attribute header)
       */
      public BaseAnnotations(String attributeName, Annotations annotations,
              int byteLength) {
          super(attributeName);
  
          try {
              if (annotations.isMutable()) {
                  throw new MutabilityException("annotations.isMutable()");
              }
          } catch (NullPointerException ex) {
              // Translate the exception.
              throw new NullPointerException("annotations == null");
          }
  
          this.annotations = annotations;
          this.byteLength = byteLength;
      }
  
      /** {@inheritDoc} */
      public final int byteLength() {
          // Add six for the standard attribute header.
          return byteLength + 6;
      }
  
      /**
       * Gets the list of annotations associated with this instance.
       *
       * @return {@code non-null;} the list
       */
      public final Annotations getAnnotations() {
          return annotations;
      }
  }
  