Added StaticJsonDocument and DynamicJsonDocument.

Removed StaticJsonArray and DynamicJsonArray.
Removed StaticJsonObject and DynamicJsonObject.
Removed StaticJsonVariant and DynamicJsonVariant.

src/ArduinoJson/StaticJsonDocument.hpp

@@ -0,0 +1,80 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#include "JsonVariant.hpp"
+#include "Memory/StaticJsonBuffer.hpp"
+
+namespace ArduinoJson {
+
+template <size_t CAPACITY = sizeof(JsonVariant)>
+class StaticJsonDocument {
+  Internals::StaticJsonBuffer<CAPACITY> _buffer;
+  JsonVariant _root;
+
+ public:
+  Internals::StaticJsonBufferBase& buffer() {
+    return _buffer;
+  }
+
+  template <typename T>
+  bool is() const {
+    return _root.is<T>();
+  }
+
+  template <typename T>
+  typename Internals::JsonVariantAs<T>::type as() const {
+    return _root.as<T>();
+  }
+
+  // JsonObject& to<JsonObject>()
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsSame<T, JsonObject>::value,
+                               JsonObject&>::type
+  to() {
+    clear();
+    JsonObject* object = new (&_buffer) JsonObject(&_buffer);
+    if (!object) return JsonObject::invalid();
+    _root = object;
+    return *object;
+  }
+
+  // JsonArray& to<JsonArray>()
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsSame<T, JsonArray>::value,
+                               JsonArray&>::type
+  to() {
+    clear();
+    JsonArray* array = new (&_buffer) JsonArray(&_buffer);
+    if (!array) return JsonArray::invalid();
+    _root = array;
+    return *array;
+  }
+
+  // JsonVariant to<JsonVariant>()
+  template <typename T>
+  typename Internals::EnableIf<Internals::IsSame<T, JsonVariant>::value,
+                               T&>::type
+  to() {
+    clear();
+    return _root;
+  }
+
+  void clear() {
+    _buffer.clear();
+    _root = JsonVariant();
+  }
+
+  size_t memoryUsage() const {
+    return _buffer.size();
+  }
+
+  template <typename Visitor>
+  void visit(Visitor visitor) const {
+    return _root.visit(visitor);
+  }
+};
+
+}  // namespace ArduinoJson