Files
ArduinoJson/include/ArduinoJson/JsonObjectSubscript.hpp
2016-01-07 22:39:57 +01:00

90 lines
2.2 KiB
C++

// Copyright Benoit Blanchon 2014-2016
// MIT License
//
// Arduino JSON library
// https://github.com/bblanchon/ArduinoJson
// If you like this project, please add a star!
#pragma once
#include "JsonSubscriptBase.hpp"
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4522)
#endif
namespace ArduinoJson {
template <typename TKey>
class JsonObjectSubscript
: public JsonSubscriptBase<JsonObjectSubscript<TKey> > {
public:
FORCE_INLINE JsonObjectSubscript(JsonObject& object, TKey key)
: _object(object), _key(key) {}
using JsonSubscriptBase<JsonObjectSubscript<TKey> >::operator=;
JsonObjectSubscript<TKey>& operator=(const JsonObjectSubscript<TKey>& src) {
return JsonSubscriptBase<JsonObjectSubscript<TKey> >::template assign<
JsonVariant>(src);
}
template <typename T>
JsonObjectSubscript<TKey>& operator=(const T& src) {
return JsonSubscriptBase<JsonObjectSubscript<TKey> >::template assign<
JsonVariant>(src);
}
FORCE_INLINE bool success() const { return _object.containsKey(_key); }
FORCE_INLINE operator JsonVariant() const { return _object.get(_key); }
template <typename TValue>
FORCE_INLINE TValue as() const {
return _object.get<TValue>(_key);
}
template <typename TValue>
FORCE_INLINE bool is() const {
return _object.is<TValue>(_key);
}
template <typename TValue>
FORCE_INLINE bool set(TValue value) {
return _object.set(_key, value);
}
template <typename TValue>
FORCE_INLINE bool set(TValue value, uint8_t decimals) {
return _object.set(_key, value, decimals);
}
FORCE_INLINE JsonVariant get() { return _object.get(_key); }
void writeTo(Internals::JsonWriter& writer) const {
_object.get(_key).writeTo(writer);
}
private:
JsonObject& _object;
TKey _key;
};
#ifdef ARDUINOJSON_ENABLE_STD_STREAM
inline std::ostream& operator<<(
std::ostream& os, const JsonObjectSubscript<const String&>& source) {
return source.printTo(os);
}
inline std::ostream& operator<<(
std::ostream& os, const JsonObjectSubscript<const char*>& source) {
return source.printTo(os);
}
#endif
} // namespace ArduinoJson
#ifdef _MSC_VER
#pragma warning(pop)
#endif