JsonObjectSubscript.hpp
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// Copyright Benoit Blanchon 2014-2017
// MIT License
//
// Arduino JSON library
// https://bblanchon.github.io/ArduinoJson/
// If you like this project, please add a star!
#pragma once
#include "Configuration.hpp"
#include "JsonVariantBase.hpp"
#include "TypeTraits/EnableIf.hpp"
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4522)
#endif
namespace ArduinoJson {
template <typename TStringRef>
class JsonObjectSubscript
: public JsonVariantBase<JsonObjectSubscript<TStringRef> > {
typedef JsonObjectSubscript<TStringRef> this_type;
public:
FORCE_INLINE JsonObjectSubscript(JsonObject& object, TStringRef key)
: _object(object), _key(key) {}
FORCE_INLINE this_type& operator=(const this_type& src) {
_object.set(_key, src);
return *this;
}
// Set the specified value
//
// operator=(TValue);
// TValue = bool, char, long, int, short, float, double,
// const std::string&, const String&,
// const JsonArray&, const JsonObject&
template <typename TValue>
FORCE_INLINE
typename TypeTraits::EnableIf<!TypeTraits::IsArray<TValue>::value,
this_type&>::type
operator=(const TValue& src) {
_object.set(_key, src);
return *this;
}
//
// operator=(TValue);
// TValue = const char*, const char[N], const FlashStringHelper*
template <typename TValue>
FORCE_INLINE this_type& operator=(const TValue* src) {
_object.set(_key, src);
return *this;
}
FORCE_INLINE bool success() const {
return _object.containsKey(_key);
}
template <typename TValue>
FORCE_INLINE typename Internals::JsonVariantAs<TValue>::type as() const {
return _object.get<TValue>(_key);
}
template <typename TValue>
FORCE_INLINE bool is() const {
return _object.is<TValue>(_key);
}
// Sets the specified value.
//
// bool set(TValue);
// TValue = bool, char, long, int, short, float, double, RawJson, JsonVariant,
// const std::string&, const String&,
// const JsonArray&, const JsonObject&
template <typename TValue>
FORCE_INLINE
typename TypeTraits::EnableIf<!TypeTraits::IsArray<TValue>::value,
bool>::type
set(const TValue& value) {
return _object.set(_key, value);
}
//
// bool set(TValue);
// TValue = const char*, const char[N], const FlashStringHelper*
template <typename TValue>
FORCE_INLINE bool set(const TValue* value) {
return _object.set(_key, value);
}
//
// bool set(TValue, uint8_t decimals);
// TValue = float, double
template <typename TValue>
FORCE_INLINE bool set(const TValue& value, uint8_t decimals) {
return _object.set(_key, value, decimals);
}
private:
JsonObject& _object;
TStringRef _key;
};
#if ARDUINOJSON_ENABLE_STD_STREAM
template <typename TStringRef>
inline std::ostream& operator<<(std::ostream& os,
const JsonObjectSubscript<TStringRef>& source) {
return source.printTo(os);
}
#endif
} // namespace ArduinoJson
#ifdef _MSC_VER
#pragma warning(pop)
#endif