Files
ArduinoJson/include/ArduinoJson/JsonArraySubscript.hpp
2016-09-11 13:43:21 +02:00

95 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 "Configuration.hpp"
#include "JsonVariantBase.hpp"
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4522)
#endif
namespace ArduinoJson {
class JsonArraySubscript : public JsonVariantBase<JsonArraySubscript> {
public:
FORCE_INLINE JsonArraySubscript(JsonArray& array, size_t index)
: _array(array), _index(index) {}
JsonArraySubscript& operator=(const JsonArraySubscript& src) {
_array.set<const JsonVariant&>(_index, src);
return *this;
}
template <typename T>
typename TypeTraits::EnableIf<JsonArray::CanSet<T&>::value,
JsonArraySubscript>::type&
operator=(const T& src) {
_array.set<T&>(_index, const_cast<T&>(src));
return *this;
}
template <typename T>
typename TypeTraits::EnableIf<JsonArray::CanSet<T>::value,
JsonArraySubscript>::type&
operator=(T src) {
_array.set<T>(_index, src);
return *this;
}
FORCE_INLINE bool success() const {
return _index < _array.size();
}
FORCE_INLINE operator JsonVariant() const {
return _array.get(_index);
}
template <typename T>
FORCE_INLINE typename Internals::JsonVariantAs<T>::type as() const {
return _array.get<T>(_index);
}
template <typename T>
FORCE_INLINE bool is() const {
return _array.is<T>(_index);
}
template <typename TValue>
void set(TValue value) {
_array.set(_index, value);
}
private:
JsonArray& _array;
const size_t _index;
};
#if ARDUINOJSON_ENABLE_STD_STREAM
inline std::ostream& operator<<(std::ostream& os,
const JsonArraySubscript& source) {
return source.printTo(os);
}
#endif
inline JsonArraySubscript JsonArray::operator[](size_t index) {
return JsonArraySubscript(*this, index);
}
template <typename TImplem>
inline const JsonArraySubscript JsonVariantBase<TImplem>::operator[](
int index) const {
return asArray()[index];
}
} // namespace ArduinoJson
#ifdef _MSC_VER
#pragma warning(pop)
#endif