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.type.TypeList;
  import com.taobao.android.dx.util.MutabilityException;
  
  /**
   * Attribute class for standard {@code Exceptions} attributes.
   */
  public final class AttExceptions extends BaseAttribute {
      /** {@code non-null;} attribute name for attributes of this type */
      public static final String ATTRIBUTE_NAME = "Exceptions";
  
      /** {@code non-null;} list of exception classes */
      private final TypeList exceptions;
  
      /**
       * Constructs an instance.
       *
       * @param exceptions {@code non-null;} list of classes, presumed but not
       * verified to be subclasses of {@code Throwable}
       */
      public AttExceptions(TypeList exceptions) {
          super(ATTRIBUTE_NAME);
  
          try {
              if (exceptions.isMutable()) {
                  throw new MutabilityException("exceptions.isMutable()");
              }
          } catch (NullPointerException ex) {
              // Translate the exception.
              throw new NullPointerException("exceptions == null");
          }
  
          this.exceptions = exceptions;
      }
  
      /** {@inheritDoc} */
      public int byteLength() {
          return 8 + exceptions.size() * 2;
      }
  
      /**
       * Gets the list of classes associated with this instance. In
       * general, these classes are not pre-verified to be subclasses of
       * {@code Throwable}.
       *
       * @return {@code non-null;} the list of classes
       */
      public TypeList getExceptions() {
          return exceptions;
      }
  }
  