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.dex.SizeOf;
  import com.taobao.android.dx.rop.cst.CstMemberRef;
  import com.taobao.android.dx.rop.cst.CstNat;
  import com.taobao.android.dx.util.AnnotatedOutput;
  import com.taobao.android.dx.util.Hex;
  
  /**
   * Representation of a member (field or method) reference inside a
   * Dalvik file.
   */
  public abstract class MemberIdItem extends IdItem {
      /** {@code non-null;} the constant for the member */
      private final CstMemberRef cst;
  
      /**
       * Constructs an instance.
       *
       * @param cst {@code non-null;} the constant for the member
       */
      public MemberIdItem(CstMemberRef cst) {
          super(cst.getDefiningClass());
  
          this.cst = cst;
      }
  
      /** {@inheritDoc} */
      @Override
      public int writeSize() {
          return SizeOf.MEMBER_ID_ITEM;
      }
  
      /** {@inheritDoc} */
      @Override
      public void addContents(DexFile file) {
          super.addContents(file);
  
          StringIdsSection stringIds = file.getStringIds();
          stringIds.intern(getRef().getNat().getName());
      }
  
      /** {@inheritDoc} */
      @Override
      public final void writeTo(DexFile file, AnnotatedOutput out) {
          TypeIdsSection typeIds = file.getTypeIds();
          StringIdsSection stringIds = file.getStringIds();
          CstNat nat = cst.getNat();
          int classIdx = typeIds.indexOf(getDefiningClass());
          int nameIdx = stringIds.indexOf(nat.getName());
          int typoidIdx = getTypoidIdx(file);
  
          if (out.annotates()) {
              out.annotate(0, indexString() + ' ' + cst.toHuman());
              out.annotate(2, "  class_idx: " + Hex.u2(classIdx));
              out.annotate(2, String.format("  %-10s %s", getTypoidName() + ':',
                              Hex.u2(typoidIdx)));
              out.annotate(4, "  name_idx:  " + Hex.u4(nameIdx));
          }
  
          out.writeShort(classIdx);
          out.writeShort(typoidIdx);
          out.writeInt(nameIdx);
      }
  
      /**
       * Returns the index of the type-like thing associated with
       * this item, in order that it may be written out. Subclasses must
       * override this to get whatever it is they need to store.
       *
       * @param file {@code non-null;} the file being written
       * @return the index in question
       */
      protected abstract int getTypoidIdx(DexFile file);
  
      /**
       * Returns the field name of the type-like thing associated with
       * this item, for listing-generating purposes. Subclasses must override
       * this.
       *
       * @return {@code non-null;} the name in question
       */
      protected abstract String getTypoidName();
  
      /**
       * Gets the member constant.
       *
       * @return {@code non-null;} the constant
       */
      public final CstMemberRef getRef() {
          return cst;
      }
  }
  