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.iface;
  
  import com.taobao.android.dx.util.FixedSizeList;
  
  /**
   * Standard implementation of {@link AttributeList}, which directly stores
   * an array of {@link Attribute} objects and can be made immutable.
   */
  public final class StdAttributeList extends FixedSizeList
          implements AttributeList {
      /**
       * Constructs an instance. All indices initially contain {@code null}.
       *
       * @param size the size of the list
       */
      public StdAttributeList(int size) {
          super(size);
      }
  
      /** {@inheritDoc} */
      public Attribute get(int n) {
          return (Attribute) get0(n);
      }
  
      /** {@inheritDoc} */
      public int byteLength() {
          int sz = size();
          int result = 2; // u2 attributes_count
  
          for (int i = 0; i < sz; i++) {
              result += get(i).byteLength();
          }
  
          return result;
      }
  
      /** {@inheritDoc} */
      public Attribute findFirst(String name) {
          int sz = size();
  
          for (int i = 0; i < sz; i++) {
              Attribute att = get(i);
              if (att.getName().equals(name)) {
                  return att;
              }
          }
  
          return null;
      }
  
      /** {@inheritDoc} */
      public Attribute findNext(Attribute attrib) {
          int sz = size();
          int at;
  
          outer: {
              for (at = 0; at < sz; at++) {
                  Attribute att = get(at);
                  if (att == attrib) {
                      break outer;
                  }
              }
  
              return null;
          }
  
          String name = attrib.getName();
  
          for (at++; at < sz; at++) {
              Attribute att = get(at);
              if (att.getName().equals(name)) {
                  return att;
              }
          }
  
          return null;
      }
  
      /**
       * Sets the attribute at the given index.
       *
       * @param n {@code >= 0, < size();} which attribute
       * @param attribute {@code null-ok;} the attribute object
       */
      public void set(int n, Attribute attribute) {
          set0(n, attribute);
      }
  }
  