91 lines
3.5 KiB
C++
91 lines
3.5 KiB
C++
/*
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* Copyright (C) 2014, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* !!!!! DO NOT EDIT THIS FILE !!!!!
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*
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* This file was generated from
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* dictionary/structure/v4/ver4_pt_node_array_reader.cpp
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*/
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#include "dictionary/structure/backward/v402/ver4_pt_node_array_reader.h"
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#include "dictionary/structure/pt_common/dynamic_pt_reading_utils.h"
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#include "dictionary/structure/pt_common/patricia_trie_reading_utils.h"
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#include "dictionary/utils/buffer_with_extendable_buffer.h"
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namespace latinime {
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namespace backward {
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namespace v402 {
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bool Ver4PtNodeArrayReader::readPtNodeArrayInfoAndReturnIfValid(const int ptNodeArrayPos,
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int *const outPtNodeCount, int *const outFirstPtNodePos) const {
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if (ptNodeArrayPos < 0 || ptNodeArrayPos >= mBuffer->getTailPosition()) {
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// Reading invalid position because of a bug or a broken dictionary.
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AKLOGE("Reading PtNode array info from invalid dictionary position: %d, dict size: %d",
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ptNodeArrayPos, mBuffer->getTailPosition());
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ASSERT(false);
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return false;
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}
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const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(ptNodeArrayPos);
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const uint8_t *const dictBuf = mBuffer->getBuffer(usesAdditionalBuffer);
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int readingPos = ptNodeArrayPos;
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if (usesAdditionalBuffer) {
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readingPos -= mBuffer->getOriginalBufferSize();
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}
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const int ptNodeCountInArray = PatriciaTrieReadingUtils::getPtNodeArraySizeAndAdvancePosition(
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dictBuf, &readingPos);
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if (usesAdditionalBuffer) {
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readingPos += mBuffer->getOriginalBufferSize();
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}
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if (ptNodeCountInArray < 0) {
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AKLOGE("Invalid PtNode count in an array: %d.", ptNodeCountInArray);
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return false;
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}
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*outPtNodeCount = ptNodeCountInArray;
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*outFirstPtNodePos = readingPos;
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return true;
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}
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bool Ver4PtNodeArrayReader::readForwardLinkAndReturnIfValid(const int forwordLinkPos,
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int *const outNextPtNodeArrayPos) const {
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if (forwordLinkPos < 0 || forwordLinkPos >= mBuffer->getTailPosition()) {
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// Reading invalid position because of bug or broken dictionary.
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AKLOGE("Reading forward link from invalid dictionary position: %d, dict size: %d",
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forwordLinkPos, mBuffer->getTailPosition());
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ASSERT(false);
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return false;
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}
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const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(forwordLinkPos);
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const uint8_t *const dictBuf = mBuffer->getBuffer(usesAdditionalBuffer);
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int readingPos = forwordLinkPos;
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if (usesAdditionalBuffer) {
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readingPos -= mBuffer->getOriginalBufferSize();
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}
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const int nextPtNodeArrayOffset =
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DynamicPtReadingUtils::getForwardLinkPosition(dictBuf, readingPos);
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if (DynamicPtReadingUtils::isValidForwardLinkPosition(nextPtNodeArrayOffset)) {
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*outNextPtNodeArrayPos = forwordLinkPos + nextPtNodeArrayOffset;
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} else {
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*outNextPtNodeArrayPos = NOT_A_DICT_POS;
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}
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return true;
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}
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} // namespace v402
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} // namespace backward
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} // namespace latinime
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