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// ArduinoJson - https://arduinojson.org
// Copyright Benoit Blanchon 2014-2021
// MIT License
#pragma once
#include "lib/ArduinoJson/Array/ArrayFunctions.hpp"
#include "lib/ArduinoJson/Array/ArrayIterator.hpp"
#include "lib/ArduinoJson/Variant/VariantData.hpp"
// Returns the size (in bytes) of an array with n elements.
// Can be very handy to determine the size of a StaticMemoryPool.
#define JSON_ARRAY_SIZE(NUMBER_OF_ELEMENTS) \
((NUMBER_OF_ELEMENTS) * sizeof(ARDUINOJSON_NAMESPACE::VariantSlot))
namespace ARDUINOJSON_NAMESPACE {
class ObjectRef;
template <typename>
class ElementProxy;
template <typename TData>
class ArrayRefBase {
public:
operator VariantConstRef() const {
const void* data = _data; // prevent warning cast-align
return VariantConstRef(reinterpret_cast<const VariantData*>(data));
}
template <typename TVisitor>
FORCE_INLINE typename TVisitor::result_type accept(TVisitor& visitor) const {
return arrayAccept(_data, visitor);
}
FORCE_INLINE bool isNull() const {
return _data == 0;
}
FORCE_INLINE operator bool() const {
return _data != 0;
}
FORCE_INLINE size_t memoryUsage() const {
return _data ? _data->memoryUsage() : 0;
}
FORCE_INLINE size_t nesting() const {
return _data ? _data->nesting() : 0;
}
FORCE_INLINE size_t size() const {
return _data ? _data->size() : 0;
}
protected:
ArrayRefBase(TData* data) : _data(data) {}
TData* _data;
};
class ArrayConstRef : public ArrayRefBase<const CollectionData>,
public Visitable {
friend class ArrayRef;
typedef ArrayRefBase<const CollectionData> base_type;
public:
typedef ArrayConstRefIterator iterator;
FORCE_INLINE iterator begin() const {
if (!_data)
return iterator();
return iterator(_data->head());
}
FORCE_INLINE iterator end() const {
return iterator();
}
FORCE_INLINE ArrayConstRef() : base_type(0) {}
FORCE_INLINE ArrayConstRef(const CollectionData* data) : base_type(data) {}
FORCE_INLINE bool operator==(ArrayConstRef rhs) const {
return arrayEquals(_data, rhs._data);
}
FORCE_INLINE VariantConstRef operator[](size_t index) const {
return getElement(index);
}
FORCE_INLINE VariantConstRef getElement(size_t index) const {
return VariantConstRef(_data ? _data->getElement(index) : 0);
}
};
class ArrayRef : public ArrayRefBase<CollectionData>,
public ArrayShortcuts<ArrayRef>,
public Visitable {
typedef ArrayRefBase<CollectionData> base_type;
public:
typedef ArrayIterator iterator;
FORCE_INLINE ArrayRef() : base_type(0), _pool(0) {}
FORCE_INLINE ArrayRef(MemoryPool* pool, CollectionData* data)
: base_type(data), _pool(pool) {}
operator VariantRef() {
void* data = _data; // prevent warning cast-align
return VariantRef(_pool, reinterpret_cast<VariantData*>(data));
}
operator ArrayConstRef() const {
return ArrayConstRef(_data);
}
VariantRef addElement() const {
return VariantRef(_pool, arrayAdd(_data, _pool));
}
FORCE_INLINE iterator begin() const {
if (!_data)
return iterator();
return iterator(_pool, _data->head());
}
FORCE_INLINE iterator end() const {
return iterator();
}
// Copy a ArrayRef
FORCE_INLINE bool set(ArrayConstRef src) const {
if (!_data || !src._data)
return false;
return _data->copyFrom(*src._data, _pool);
}
FORCE_INLINE bool operator==(ArrayRef rhs) const {
return arrayEquals(_data, rhs._data);
}
// Internal use
FORCE_INLINE VariantRef getOrAddElement(size_t index) const {
return VariantRef(_pool, _data ? _data->getOrAddElement(index, _pool) : 0);
}
// Gets the value at the specified index.
FORCE_INLINE VariantRef getElement(size_t index) const {
return VariantRef(_pool, _data ? _data->getElement(index) : 0);
}
// Removes element at specified position.
FORCE_INLINE void remove(iterator it) const {
if (!_data)
return;
_data->removeSlot(it.internal());
}
// Removes element at specified index.
FORCE_INLINE void remove(size_t index) const {
if (!_data)
return;
_data->removeElement(index);
}
private:
MemoryPool* _pool;
};
template <>
struct Converter<ArrayConstRef> {
static bool toJson(VariantConstRef src, VariantRef dst) {
return variantCopyFrom(getData(dst), getData(src), getPool(dst));
}
static ArrayConstRef fromJson(VariantConstRef src) {
return ArrayConstRef(variantAsArray(getData(src)));
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isArray();
}
};
template <>
struct Converter<ArrayRef> {
static bool toJson(VariantConstRef src, VariantRef dst) {
return variantCopyFrom(getData(dst), getData(src), getPool(dst));
}
static ArrayRef fromJson(VariantRef src) {
VariantData* data = getData(src);
MemoryPool* pool = getPool(src);
return ArrayRef(pool, data != 0 ? data->asArray() : 0);
}
static bool checkJson(VariantConstRef) {
return false;
}
static bool checkJson(VariantRef src) {
VariantData* data = getData(src);
return data && data->isArray();
}
};
} // namespace ARDUINOJSON_NAMESPACE
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