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// ArduinoJson - https://arduinojson.org
// Copyright Benoit Blanchon 2014-2021
// MIT License
#pragma once
#include <ArduinoJson/Object/ObjectFunctions.hpp>
#include <ArduinoJson/Object/ObjectIterator.hpp>
// Returns the size (in bytes) of an object with n elements.
// Can be very handy to determine the size of a StaticMemoryPool.
#define JSON_OBJECT_SIZE(NUMBER_OF_ELEMENTS) \
((NUMBER_OF_ELEMENTS) * sizeof(ARDUINOJSON_NAMESPACE::VariantSlot))
namespace ARDUINOJSON_NAMESPACE {
template <typename TData>
class ObjectRefBase {
public:
operator VariantConstRef() const {
const void* data = _data; // prevent warning cast-align
return VariantConstRef(reinterpret_cast<const VariantData*>(data));
}
template <typename TVisitor>
typename TVisitor::result_type accept(TVisitor& visitor) const {
return objectAccept(_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:
ObjectRefBase(TData* data) : _data(data) {}
TData* _data;
};
class ObjectConstRef : public ObjectRefBase<const CollectionData>,
public Visitable {
friend class ObjectRef;
typedef ObjectRefBase<const CollectionData> base_type;
public:
typedef ObjectConstIterator iterator;
ObjectConstRef() : base_type(0) {}
ObjectConstRef(const CollectionData* data) : base_type(data) {}
FORCE_INLINE iterator begin() const {
if (!_data)
return iterator();
return iterator(_data->head());
}
FORCE_INLINE iterator end() const {
return iterator();
}
// containsKey(const std::string&) const
// containsKey(const String&) const
template <typename TString>
FORCE_INLINE bool containsKey(const TString& key) const {
return !getMember(key).isUndefined();
}
// containsKey(char*) const
// containsKey(const char*) const
// containsKey(const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE bool containsKey(TChar* key) const {
return !getMember(key).isUndefined();
}
// getMember(const std::string&) const
// getMember(const String&) const
template <typename TString>
FORCE_INLINE VariantConstRef getMember(const TString& key) const {
return get_impl(adaptString(key));
}
// getMember(char*) const
// getMember(const char*) const
// getMember(const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE VariantConstRef getMember(TChar* key) const {
return get_impl(adaptString(key));
}
// operator[](const std::string&) const
// operator[](const String&) const
template <typename TString>
FORCE_INLINE
typename enable_if<IsString<TString>::value, VariantConstRef>::type
operator[](const TString& key) const {
return get_impl(adaptString(key));
}
// operator[](char*) const
// operator[](const char*) const
// operator[](const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE
typename enable_if<IsString<TChar*>::value, VariantConstRef>::type
operator[](TChar* key) const {
return get_impl(adaptString(key));
}
FORCE_INLINE bool operator==(ObjectConstRef rhs) const {
return objectEquals(_data, rhs._data);
}
private:
template <typename TAdaptedString>
FORCE_INLINE VariantConstRef get_impl(TAdaptedString key) const {
return VariantConstRef(objectGetMember(_data, key));
}
};
class ObjectRef : public ObjectRefBase<CollectionData>,
public ObjectShortcuts<ObjectRef>,
public Visitable {
typedef ObjectRefBase<CollectionData> base_type;
public:
typedef ObjectIterator iterator;
FORCE_INLINE ObjectRef() : base_type(0), _pool(0) {}
FORCE_INLINE ObjectRef(MemoryPool* buf, CollectionData* data)
: base_type(data), _pool(buf) {}
operator VariantRef() const {
void* data = _data; // prevent warning cast-align
return VariantRef(_pool, reinterpret_cast<VariantData*>(data));
}
operator ObjectConstRef() const {
return ObjectConstRef(_data);
}
FORCE_INLINE iterator begin() const {
if (!_data)
return iterator();
return iterator(_pool, _data->head());
}
FORCE_INLINE iterator end() const {
return iterator();
}
void clear() const {
if (!_data)
return;
_data->clear();
}
FORCE_INLINE bool set(ObjectConstRef src) {
if (!_data || !src._data)
return false;
return _data->copyFrom(*src._data, _pool);
}
// getMember(const std::string&) const
// getMember(const String&) const
template <typename TString>
FORCE_INLINE VariantRef getMember(const TString& key) const {
return VariantRef(_pool, objectGetMember(_data, adaptString(key)));
}
// getMember(char*) const
// getMember(const char*) const
// getMember(const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE VariantRef getMember(TChar* key) const {
return VariantRef(_pool, objectGetMember(_data, adaptString(key)));
}
// getOrAddMember(const std::string&) const
// getOrAddMember(const String&) const
template <typename TString>
FORCE_INLINE VariantRef getOrAddMember(const TString& key) const {
return VariantRef(_pool,
objectGetOrAddMember(_data, adaptString(key), _pool));
}
// getOrAddMember(char*) const
// getOrAddMember(const char*) const
// getOrAddMember(const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE VariantRef getOrAddMember(TChar* key) const {
return VariantRef(_pool,
objectGetOrAddMember(_data, adaptString(key), _pool));
}
FORCE_INLINE bool operator==(ObjectRef rhs) const {
return objectEquals(_data, rhs._data);
}
FORCE_INLINE void remove(iterator it) const {
if (!_data)
return;
_data->removeSlot(it.internal());
}
// remove(const std::string&) const
// remove(const String&) const
template <typename TString>
FORCE_INLINE void remove(const TString& key) const {
objectRemove(_data, adaptString(key));
}
// remove(char*) const
// remove(const char*) const
// remove(const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE void remove(TChar* key) const {
objectRemove(_data, adaptString(key));
}
private:
MemoryPool* _pool;
};
template <>
struct Converter<ObjectConstRef> {
static bool toJson(VariantConstRef src, VariantRef dst) {
return variantCopyFrom(getData(dst), getData(src), getPool(dst));
}
static ObjectConstRef fromJson(VariantConstRef src) {
return ObjectConstRef(variantAsObject(getData(src)));
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isObject();
}
};
template <>
struct Converter<ObjectRef> {
static bool toJson(VariantConstRef src, VariantRef dst) {
return variantCopyFrom(getData(dst), getData(src), getPool(dst));
}
static ObjectRef fromJson(VariantRef src) {
VariantData* data = getData(src);
MemoryPool* pool = getPool(src);
return ObjectRef(pool, data != 0 ? data->asObject() : 0);
}
static bool checkJson(VariantConstRef) {
return false;
}
static bool checkJson(VariantRef src) {
VariantData* data = getData(src);
return data && data->isObject();
}
};
} // namespace ARDUINOJSON_NAMESPACE
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