Add spellcheck and word suggestion to the prediction service

third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h

Index: third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h
diff --git a/third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h b/third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h
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index 0000000000000000000000000000000000000000..32db23bccafb70c23bafdeb224faaee455da8ef9
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+++ b/third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.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.
+ */
+
+#ifndef LATINIME_DYNAMIC_PT_WRITING_UTILS_H
+#define LATINIME_DYNAMIC_PT_WRITING_UTILS_H
+
+#include <cstddef>
+
+#include "third_party/prediction/defines.h"
+#include "third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_reading_utils.h"
+
+namespace latinime {
+
+class BufferWithExtendableBuffer;
+
+class DynamicPtWritingUtils {
+ public:
+  static const int NODE_FLAG_FIELD_SIZE;
+
+  static bool writeEmptyDictionary(BufferWithExtendableBuffer* const buffer,
+                                   const int rootPos);
+
+  static bool writeForwardLinkPositionAndAdvancePosition(
+      BufferWithExtendableBuffer* const buffer,
+      const int forwardLinkPos,
+      int* const forwardLinkFieldPos);
+
+  static bool writePtNodeArraySizeAndAdvancePosition(
+      BufferWithExtendableBuffer* const buffer,
+      const size_t arraySize,
+      int* const arraySizeFieldPos);
+
+  static bool writeFlags(BufferWithExtendableBuffer* const buffer,
+                         const DynamicPtReadingUtils::NodeFlags nodeFlags,
+                         const int nodeFlagsFieldPos) {
+    int writingPos = nodeFlagsFieldPos;
+    return writeFlagsAndAdvancePosition(buffer, nodeFlags, &writingPos);
+  }
+
+  static bool writeFlagsAndAdvancePosition(
+      BufferWithExtendableBuffer* const buffer,
+      const DynamicPtReadingUtils::NodeFlags nodeFlags,
+      int* const nodeFlagsFieldPos);
+
+  static bool writeParentPosOffsetAndAdvancePosition(
+      BufferWithExtendableBuffer* const buffer,
+      const int parentPosition,
+      const int basePos,
+      int* const parentPosFieldPos);
+
+  static bool writeCodePointsAndAdvancePosition(
+      BufferWithExtendableBuffer* const buffer,
+      const int* const codePoints,
+      const int codePointCount,
+      int* const codePointFieldPos);
+
+  static bool writeChildrenPositionAndAdvancePosition(
+      BufferWithExtendableBuffer* const buffer,
+      const int childrenPosition,
+      int* const childrenPositionFieldPos);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(DynamicPtWritingUtils);
+
+  static const size_t MAX_PTNODE_ARRAY_SIZE_TO_USE_SMALL_SIZE_FIELD;
+  static const size_t MAX_PTNODE_ARRAY_SIZE;
+  static const int SMALL_PTNODE_ARRAY_SIZE_FIELD_SIZE;
+  static const int LARGE_PTNODE_ARRAY_SIZE_FIELD_SIZE;
+  static const int LARGE_PTNODE_ARRAY_SIZE_FIELD_SIZE_FLAG;
+  static const int DICT_OFFSET_FIELD_SIZE;
+  static const int MAX_DICT_OFFSET_VALUE;
+  static const int MIN_DICT_OFFSET_VALUE;
+  static const int DICT_OFFSET_NEGATIVE_FLAG;
+
+  static bool writeDictOffset(BufferWithExtendableBuffer* const buffer,
+                              const int targetPos,
+                              const int basePos,
+                              int* const offsetFieldPos);
+};
+}  // namespace latinime
+#endif /* LATINIME_DYNAMIC_PT_WRITING_UTILS_H */