Files
ArduinoJson/include/ArduinoJson/JsonObject.hpp
2014-11-04 09:51:25 +01:00

81 lines
2.3 KiB
C++

// Copyright Benoit Blanchon 2014
// MIT License
//
// Arduino JSON library
// https://github.com/bblanchon/ArduinoJson
#pragma once
#include "Internals/ReferenceType.hpp"
#include "JsonObjectConstIterator.hpp"
#include "JsonObjectIterator.hpp"
#include "JsonPrintable.hpp"
#define JSON_OBJECT_SIZE(NUMBER_OF_ELEMENTS) \
(sizeof(JsonObject) + \
(NUMBER_OF_ELEMENTS) * sizeof(Internals::JsonObjectNode))
namespace ArduinoJson {
class JsonArray;
class JsonBuffer;
class JsonObject : public JsonPrintable<JsonObject>,
public Internals::ReferenceType {
friend class JsonBuffer;
public:
typedef const char *key_type;
typedef JsonPair value_type;
typedef JsonObjectIterator iterator;
typedef JsonObjectConstIterator const_iterator;
bool success() const { return _buffer != NULL; }
int size() const;
JsonVariant &at(key_type key);
const JsonVariant &at(key_type key) const;
JsonVariant &operator[](key_type key);
const JsonVariant &operator[](key_type key) const { return at(key); }
void remove(key_type key);
template <typename T>
void add(key_type key, T value) {
add(key).set(value);
}
void add(key_type key, JsonArray &array) { add(key).set(array); }
void add(key_type key, JsonObject &object) { add(key).set(object); }
JsonArray &createNestedArray(key_type key);
JsonObject &createNestedObject(key_type key);
iterator begin() { return iterator(_firstNode); }
iterator end() { return iterator(NULL); }
const_iterator begin() const { return const_iterator(_firstNode); }
const_iterator end() const { return const_iterator(NULL); }
static JsonObject &invalid() { return _invalid; }
template <typename T>
void writeTo(T &writer) const;
private:
// constructor is private, instance must be created via JsonBuffer
JsonObject(JsonBuffer *buffer) : _buffer(buffer), _firstNode(NULL) {}
JsonVariant &add(key_type key) { return (*this)[key]; }
Internals::JsonObjectNode *createNode(key_type key);
void addNode(Internals::JsonObjectNode *nodeToAdd);
void removeNode(Internals::JsonObjectNode *nodeToRemove);
Internals::JsonObjectNode *getNodeAt(key_type key) const;
Internals::JsonObjectNode *getOrCreateNodeAt(key_type key);
JsonBuffer *_buffer;
Internals::JsonObjectNode *_firstNode;
static JsonObject _invalid;
};
}