text: // Copyright 2016 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef COMPONENTS_LEVELDB_PUBLIC_CPP_UTIL_H_
  #define COMPONENTS_LEVELDB_PUBLIC_CPP_UTIL_H_
  
  #include "components/leveldb/public/interfaces/leveldb.mojom.h"
  
  namespace leveldb {
  
  class Slice;
  class Status;
  
  // Builds a mojo mojom::DatabaseError from a leveldb::Status object.
  mojom::DatabaseError LeveldbStatusToError(const leveldb::Status& s);
  
  // Creates a leveldb Status object form a database error and two optional
  // messages. A mojoification of the various static leveldb::Status
  // constructors.
  leveldb::Status DatabaseErrorToStatus(mojom::DatabaseError e,
                                        const Slice& msg,
                                        const Slice& msg2);
  
  // Builds a Slice pointing to the data inside |a|. This is not a type-converter
  // as it is not a copy operation; the returned Slice points into |a| and must
  // outlive |a|.
  leveldb::Slice GetSliceFor(const mojo::Array<uint8_t>& a);
  
  // Copies the data that |s| points to into a mojo::Array.
  mojo::Array<uint8_t> GetArrayFor(const leveldb::Slice& s);
  
  }  // namespace leveldb
  
  #endif  // COMPONENTS_LEVELDB_PUBLIC_CPP_UTIL_H_
  