Add spellcheck and word suggestion to the prediction service

third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h

Index: third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h
diff --git a/third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h b/third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h
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+/*
+ * Copyright (C) 2013, 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 CHANGE THE LOGIC IN THIS FILE !!!!!
+ * Do not edit this file other than updating policy's interface.
+ *
+ * This file was generated from
+ *   suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h
+ */
+
+#ifndef LATINIME_BACKWARD_V402_VER4_PATRICIA_TRIE_POLICY_H
+#define LATINIME_BACKWARD_V402_VER4_PATRICIA_TRIE_POLICY_H
+
+#include <vector>
+
+#include "third_party/android_prediction/defines.h"
+#include "third_party/android_prediction/suggest/core/policy/dictionary_structure_with_buffer_policy.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/header/header_policy.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/bigram/ver4_bigram_list_policy.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/shortcut/ver4_shortcut_list_policy.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_dict_buffers.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_node_reader.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_node_writer.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_pt_node_array_reader.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
+
+namespace latinime {
+namespace backward {
+namespace v402 {
+
+} // namespace v402
+} // namespace backward
+class DicNode;
+namespace backward {
+namespace v402 {
+} // namespace v402
+} // namespace backward
+class DicNodeVector;
+namespace backward {
+namespace v402 {
+
+class Ver4PatriciaTriePolicy : public DictionaryStructureWithBufferPolicy {
+ public:
+    Ver4PatriciaTriePolicy(Ver4DictBuffers::Ver4DictBuffersPtr buffers)
+            : mBuffers(std::move(buffers)), mHeaderPolicy(mBuffers->getHeaderPolicy()),
+              mDictBuffer(mBuffers->getWritableTrieBuffer()),
+              mBigramPolicy(mBuffers->getMutableBigramDictContent(),
+                      mBuffers->getTerminalPositionLookupTable(), mHeaderPolicy),
+              mShortcutPolicy(mBuffers->getMutableShortcutDictContent(),
+                      mBuffers->getTerminalPositionLookupTable()),
+              mNodeReader(mDictBuffer, mBuffers->getProbabilityDictContent(), mHeaderPolicy),
+              mPtNodeArrayReader(mDictBuffer),
+              mNodeWriter(mDictBuffer, mBuffers.get(), mHeaderPolicy, &mNodeReader,
+                      &mPtNodeArrayReader, &mBigramPolicy, &mShortcutPolicy),
+              mUpdatingHelper(mDictBuffer, &mNodeReader, &mNodeWriter),
+              mWritingHelper(mBuffers.get()),
+              mUnigramCount(mHeaderPolicy->getUnigramCount()),
+              mBigramCount(mHeaderPolicy->getBigramCount()),
+              mTerminalPtNodePositionsForIteratingWords(), mIsCorrupted(false) {};
+
+    AK_FORCE_INLINE int getRootPosition() const {
+        return 0;
+    }
+
+    void createAndGetAllChildDicNodes(const DicNode *const dicNode,
+            DicNodeVector *const childDicNodes) const;
+
+    int getCodePointsAndProbabilityAndReturnCodePointCount(
+            const int terminalPtNodePos, const int maxCodePointCount, int *const outCodePoints,
+            int *const outUnigramProbability) const;
+
+    int getTerminalPtNodePositionOfWord(const int *const inWord,
+            const int length, const bool forceLowerCaseSearch) const;
+
+    int getProbability(const int unigramProbability, const int bigramProbability) const;
+
+    int getProbabilityOfPtNode(const int *const prevWordsPtNodePos, const int ptNodePos) const;
+
+    void iterateNgramEntries(const int *const prevWordsPtNodePos,
+            NgramListener *const listener) const;
+
+    int getShortcutPositionOfPtNode(const int ptNodePos) const;
+
+    const DictionaryHeaderStructurePolicy *getHeaderStructurePolicy() const {
+        return mHeaderPolicy;
+    }
+
+    const DictionaryShortcutsStructurePolicy *getShortcutsStructurePolicy() const {
+        return &mShortcutPolicy;
+    }
+
+    bool addUnigramEntry(const int *const word, const int length,
+            const UnigramProperty *const unigramProperty);
+
+    bool removeUnigramEntry(const int *const word, const int length) {
+        // Removing unigram entry is not supported.
+        return false;
+    }
+
+    bool addNgramEntry(const PrevWordsInfo *const prevWordsInfo,
+            const BigramProperty *const bigramProperty);
+
+    bool removeNgramEntry(const PrevWordsInfo *const prevWordsInfo, const int *const word1,
+            const int length1);
+
+    bool flush(const char *const filePath);
+
+    bool flushWithGC(const char *const filePath);
+
+    bool needsToRunGC(const bool mindsBlockByGC) const;
+
+    void getProperty(const char *const query, const int queryLength, char *const outResult,
+            const int maxResultLength);
+
+    const WordProperty getWordProperty(const int *const codePoints,
+            const int codePointCount) const;
+
+    int getNextWordAndNextToken(const int token, int *const outCodePoints,
+            int *const outCodePointCount);
+
+    bool isCorrupted() const {
+        return mIsCorrupted;
+    }
+
+ private:
+    DISALLOW_IMPLICIT_CONSTRUCTORS(Ver4PatriciaTriePolicy);
+
+    static const char *const UNIGRAM_COUNT_QUERY;
+    static const char *const BIGRAM_COUNT_QUERY;
+    static const char *const MAX_UNIGRAM_COUNT_QUERY;
+    static const char *const MAX_BIGRAM_COUNT_QUERY;
+    // When the dictionary size is near the maximum size, we have to refuse dynamic operations to
+    // prevent the dictionary from overflowing.
+    static const int MARGIN_TO_REFUSE_DYNAMIC_OPERATIONS;
+    static const int MIN_DICT_SIZE_TO_REFUSE_DYNAMIC_OPERATIONS;
+
+    const Ver4DictBuffers::Ver4DictBuffersPtr mBuffers;
+    const HeaderPolicy *const mHeaderPolicy;
+    BufferWithExtendableBuffer *const mDictBuffer;
+    Ver4BigramListPolicy mBigramPolicy;
+    Ver4ShortcutListPolicy mShortcutPolicy;
+    Ver4PatriciaTrieNodeReader mNodeReader;
+    Ver4PtNodeArrayReader mPtNodeArrayReader;
+    Ver4PatriciaTrieNodeWriter mNodeWriter;
+    DynamicPtUpdatingHelper mUpdatingHelper;
+    Ver4PatriciaTrieWritingHelper mWritingHelper;
+    int mUnigramCount;
+    int mBigramCount;
+    std::vector<int> mTerminalPtNodePositionsForIteratingWords;
+    mutable bool mIsCorrupted;
+
+    int getBigramsPositionOfPtNode(const int ptNodePos) const;
+};
+} // namespace v402
+} // namespace backward
+} // namespace latinime
+#endif // LATINIME_BACKWARD_V402_VER4_PATRICIA_TRIE_POLICY_H