Files
ArduinoJson/src/ArduinoJson/JsonArraySubscript.hpp
2018-01-05 09:20:01 +01:00

123 lines
3.1 KiB
C++

// ArduinoJson - arduinojson.org
// Copyright Benoit Blanchon 2014-2018
// MIT License
#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) {}
FORCE_INLINE JsonArraySubscript& operator=(const JsonArraySubscript& src) {
_array.set(_index, src);
return *this;
}
// Replaces the value
//
// operator=(TValue)
// TValue = bool, long, int, short, float, double, RawJson, JsonVariant,
// const std::string&, const String&,
// const JsonArray&, const JsonObject&
template <typename T>
FORCE_INLINE JsonArraySubscript& operator=(const T& src) {
_array.set(_index, src);
return *this;
}
//
// operator=(TValue)
// TValue = const char*, const char[N], const FlashStringHelper*
template <typename T>
FORCE_INLINE JsonArraySubscript& operator=(const T* src) {
_array.set(_index, src);
return *this;
}
FORCE_INLINE bool success() const {
return _index < _array.size();
}
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);
}
// Replaces the value
//
// bool set(TValue)
// TValue = bool, long, int, short, float, double, RawJson, JsonVariant,
// const std::string&, const String&,
// const JsonArray&, const JsonObject&
template <typename TValue>
FORCE_INLINE bool set(const TValue& value) {
return _array.set(_index, value);
}
//
// bool set(TValue)
// TValue = const char*, const char[N], const FlashStringHelper*
template <typename TValue>
FORCE_INLINE bool set(const TValue* value) {
return _array.set(_index, value);
}
//
// bool set(TValue, uint8_t decimals);
// TValue = float, double
template <typename TValue>
DEPRECATED("Second argument is not supported anymore")
FORCE_INLINE bool set(const TValue& value, uint8_t) {
return _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);
}
inline const JsonArraySubscript JsonArray::operator[](size_t index) const {
return JsonArraySubscript(*const_cast<JsonArray*>(this), index);
}
template <typename TImpl>
inline JsonArraySubscript JsonVariantSubscripts<TImpl>::operator[](
size_t index) {
return impl()->template as<JsonArray>()[index];
}
template <typename TImpl>
inline const JsonArraySubscript JsonVariantSubscripts<TImpl>::operator[](
size_t index) const {
return impl()->template as<JsonArray>()[index];
}
} // namespace ArduinoJson
#ifdef _MSC_VER
#pragma warning(pop)
#endif