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// ArduinoJson - https://arduinojson.org
// Copyright Benoit Blanchon 2014-2021
// MIT License
#pragma once
#include <ArduinoJson/Configuration.hpp>
#include <ArduinoJson/Variant/VariantOperators.hpp>
#include <ArduinoJson/Variant/VariantShortcuts.hpp>
#include <ArduinoJson/Variant/VariantTo.hpp>
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4522)
#endif
namespace ARDUINOJSON_NAMESPACE {
template <typename TArray>
class ElementProxy : public VariantOperators<ElementProxy<TArray> >,
public VariantShortcuts<ElementProxy<TArray> >,
public Visitable,
public VariantTag {
typedef ElementProxy<TArray> this_type;
public:
typedef VariantRef variant_type;
FORCE_INLINE ElementProxy(TArray array, size_t index)
: _array(array), _index(index) {}
FORCE_INLINE ElementProxy(const ElementProxy& src)
: _array(src._array), _index(src._index) {}
FORCE_INLINE this_type& operator=(const this_type& src) {
getOrAddUpstreamElement().set(src.as<VariantConstRef>());
return *this;
}
// Replaces the value
//
// operator=(const TValue&)
// TValue = bool, long, int, short, float, double, serialized, VariantRef,
// std::string, String, ArrayRef, ObjectRef
template <typename T>
FORCE_INLINE this_type& operator=(const T& src) {
getOrAddUpstreamElement().set(src);
return *this;
}
//
// operator=(TValue)
// TValue = char*, const char*, const __FlashStringHelper*
template <typename T>
FORCE_INLINE this_type& operator=(T* src) {
getOrAddUpstreamElement().set(src);
return *this;
}
FORCE_INLINE void clear() const {
getUpstreamElement().clear();
}
FORCE_INLINE bool isNull() const {
return getUpstreamElement().isNull();
}
template <typename T>
FORCE_INLINE typename enable_if<!is_same<T, char*>::value, T>::type as()
const {
return getUpstreamElement().template as<T>();
}
template <typename T>
FORCE_INLINE typename enable_if<is_same<T, char*>::value, const char*>::type
ARDUINOJSON_DEPRECATED("Replace as<char*>() with as<const char*>()")
as() const {
return as<const char*>();
}
template <typename T>
FORCE_INLINE operator T() const {
return getUpstreamElement();
}
template <typename T>
FORCE_INLINE bool is() const {
return getUpstreamElement().template is<T>();
}
template <typename T>
FORCE_INLINE typename VariantTo<T>::type to() const {
return getOrAddUpstreamElement().template to<T>();
}
// Replaces the value
//
// bool set(const TValue&)
// TValue = bool, long, int, short, float, double, serialized, VariantRef,
// std::string, String, ArrayRef, ObjectRef
template <typename TValue>
FORCE_INLINE bool set(const TValue& value) const {
return getOrAddUpstreamElement().set(value);
}
//
// bool set(TValue)
// TValue = char*, const char*, const __FlashStringHelper*
template <typename TValue>
FORCE_INLINE bool set(TValue* value) const {
return getOrAddUpstreamElement().set(value);
}
template <typename TVisitor>
typename TVisitor::result_type accept(TVisitor& visitor) const {
return getUpstreamElement().accept(visitor);
}
FORCE_INLINE size_t size() const {
return getUpstreamElement().size();
}
template <typename TNestedKey>
VariantRef getMember(TNestedKey* key) const {
return getUpstreamElement().getMember(key);
}
template <typename TNestedKey>
VariantRef getMember(const TNestedKey& key) const {
return getUpstreamElement().getMember(key);
}
template <typename TNestedKey>
VariantRef getOrAddMember(TNestedKey* key) const {
return getOrAddUpstreamElement().getOrAddMember(key);
}
template <typename TNestedKey>
VariantRef getOrAddMember(const TNestedKey& key) const {
return getOrAddUpstreamElement().getOrAddMember(key);
}
VariantRef addElement() const {
return getOrAddUpstreamElement().addElement();
}
VariantRef getElement(size_t index) const {
return getOrAddUpstreamElement().getElement(index);
}
VariantRef getOrAddElement(size_t index) const {
return getOrAddUpstreamElement().getOrAddElement(index);
}
FORCE_INLINE void remove(size_t index) const {
getUpstreamElement().remove(index);
}
// remove(char*) const
// remove(const char*) const
// remove(const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE typename enable_if<IsString<TChar*>::value>::type remove(
TChar* key) const {
getUpstreamElement().remove(key);
}
// remove(const std::string&) const
// remove(const String&) const
template <typename TString>
FORCE_INLINE typename enable_if<IsString<TString>::value>::type remove(
const TString& key) const {
getUpstreamElement().remove(key);
}
private:
FORCE_INLINE VariantRef getUpstreamElement() const {
return _array.getElement(_index);
}
FORCE_INLINE VariantRef getOrAddUpstreamElement() const {
return _array.getOrAddElement(_index);
}
friend bool convertToJson(const this_type& src, VariantRef dst) {
return dst.set(src.getUpstreamElement());
}
TArray _array;
const size_t _index;
};
} // namespace ARDUINOJSON_NAMESPACE
#ifdef _MSC_VER
#pragma warning(pop)
#endif
|
