JsonTypes.h

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/*
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * JsonTypes.h
 * Enums for the Json types.
 * See http://www.json.org/
 * Copyright (C) 2014 Simon Newton
 */

#ifndef INCLUDE_OLA_WEB_JSONTYPES_H_
#define INCLUDE_OLA_WEB_JSONTYPES_H_

#include <stdint.h>
#include <string>

namespace ola {
namespace web {

enum JsonType {
  JSON_ARRAY,  
  JSON_BOOLEAN, 
  JSON_INTEGER, 
  JSON_NULL, 
  JSON_NUMBER, 
  JSON_OBJECT, 
  JSON_STRING, 
  JSON_UNDEFINED, 
};

std::string JsonTypeToString(JsonType type);

JsonType StringToJsonType(const std::string &type);

template <typename T>
JsonType TypeFromValue(const T&);

template <typename T>
std::string GetTypename(const T&t) {
  return TypeToString(TypeFromValue(t));
}

template <>
inline JsonType TypeFromValue<std::string>(const std::string&) {
  return JSON_STRING;
}

template <>
inline JsonType TypeFromValue<bool>(const bool&) { return JSON_BOOLEAN; }

template <>
inline JsonType TypeFromValue<uint32_t>(const uint32_t&) {
  return JSON_INTEGER;
}

template <>
inline JsonType TypeFromValue<int32_t>(const int32_t&) { return JSON_INTEGER; }

template <>
inline JsonType TypeFromValue<uint64_t>(const uint64_t&) {
  return JSON_INTEGER;
}

template <>
inline JsonType TypeFromValue<int64_t>(const int64_t&) { return JSON_INTEGER; }

template <>
inline JsonType TypeFromValue<double>(const double&) { return JSON_NUMBER; }

template <typename T>
inline JsonType TypeFromValue(const T&) { return JSON_UNDEFINED; }

}  // namespace web
}  // namespace ola
#endif  // INCLUDE_OLA_WEB_JSONTYPES_H_