text: /*
   * Copyright (C) 2014, 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.
   */
  
  /*
   * !!!!! DO NOT EDIT THIS FILE !!!!!
   *
   * This file was generated from
   *   dictionary/structure/v4/ver4_pt_node_array_reader.cpp
   */
  
  #include "dictionary/structure/backward/v402/ver4_pt_node_array_reader.h"
  
  #include "dictionary/structure/pt_common/dynamic_pt_reading_utils.h"
  #include "dictionary/structure/pt_common/patricia_trie_reading_utils.h"
  #include "dictionary/utils/buffer_with_extendable_buffer.h"
  
  namespace latinime {
  namespace backward {
  namespace v402 {
  
  bool Ver4PtNodeArrayReader::readPtNodeArrayInfoAndReturnIfValid(const int ptNodeArrayPos,
          int *const outPtNodeCount, int *const outFirstPtNodePos) const {
      if (ptNodeArrayPos < 0 || ptNodeArrayPos >= mBuffer->getTailPosition()) {
          // Reading invalid position because of a bug or a broken dictionary.
          AKLOGE("Reading PtNode array info from invalid dictionary position: %d, dict size: %d",
                  ptNodeArrayPos, mBuffer->getTailPosition());
          ASSERT(false);
          return false;
      }
      const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(ptNodeArrayPos);
      const uint8_t *const dictBuf = mBuffer->getBuffer(usesAdditionalBuffer);
      int readingPos = ptNodeArrayPos;
      if (usesAdditionalBuffer) {
          readingPos -= mBuffer->getOriginalBufferSize();
      }
      const int ptNodeCountInArray = PatriciaTrieReadingUtils::getPtNodeArraySizeAndAdvancePosition(
              dictBuf, &readingPos);
      if (usesAdditionalBuffer) {
          readingPos += mBuffer->getOriginalBufferSize();
      }
      if (ptNodeCountInArray < 0) {
          AKLOGE("Invalid PtNode count in an array: %d.", ptNodeCountInArray);
          return false;
      }
      *outPtNodeCount = ptNodeCountInArray;
      *outFirstPtNodePos = readingPos;
      return true;
  }
  
  bool Ver4PtNodeArrayReader::readForwardLinkAndReturnIfValid(const int forwordLinkPos,
          int *const outNextPtNodeArrayPos) const {
      if (forwordLinkPos < 0 || forwordLinkPos >= mBuffer->getTailPosition()) {
          // Reading invalid position because of bug or broken dictionary.
          AKLOGE("Reading forward link from invalid dictionary position: %d, dict size: %d",
                  forwordLinkPos, mBuffer->getTailPosition());
          ASSERT(false);
          return false;
      }
      const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(forwordLinkPos);
      const uint8_t *const dictBuf = mBuffer->getBuffer(usesAdditionalBuffer);
      int readingPos = forwordLinkPos;
      if (usesAdditionalBuffer) {
          readingPos -= mBuffer->getOriginalBufferSize();
      }
      const int nextPtNodeArrayOffset =
              DynamicPtReadingUtils::getForwardLinkPosition(dictBuf, readingPos);
      if (DynamicPtReadingUtils::isValidForwardLinkPosition(nextPtNodeArrayOffset)) {
          *outNextPtNodeArrayPos = forwordLinkPos + nextPtNodeArrayOffset;
      } else {
          *outNextPtNodeArrayPos = NOT_A_DICT_POS;
      }
      return true;
  }
  
  } // namespace v402
  } // namespace backward
  } // namespace latinime
  