Implement the object copy at the JsonObject level

src/ArduinoJson/Object/JsonObject.hpp

@@ -95,7 +95,16 @@ class JsonObject : public detail::VariantOperators<JsonObject> {
   // Copies an object.
   // https://arduinojson.org/v6/api/jsonobject/set/
   FORCE_INLINE bool set(JsonObjectConst src) {
-    return detail::ObjectData::copy(data_, src.data_, resources_);
+    if (!data_ || !src.data_)
+      return false;
+
+    clear();
+    for (auto kvp : src) {
+      if (!operator[](kvp.key()).set(kvp.value()))
+        return false;
+    }
+
+    return true;
   }
 
   // Gets or sets the member with specified key.

src/ArduinoJson/Object/ObjectData.hpp

@@ -39,16 +39,6 @@ class ObjectData : public CollectionData {
     }
   }
 
-  bool copyFrom(const ObjectData& src, ResourceManager* resources);
-
-  static bool copy(ObjectData* dst, const ObjectData* src,
-                   ResourceManager* resources) {
-    if (!dst || !src)
-      return false;
-
-    return dst->copyFrom(*src, resources);
-  }
-
   template <typename TAdaptedString>
   VariantData* getOrAddMember(TAdaptedString key, ResourceManager* resources);
 

src/ArduinoJson/Object/ObjectImpl.hpp

@@ -9,22 +9,6 @@
 
 ARDUINOJSON_BEGIN_PRIVATE_NAMESPACE
 
-inline bool ObjectData::copyFrom(const ObjectData& src,
-                                 ResourceManager* resources) {
-  clear(resources);
-
-  for (auto it = src.createIterator(); !it.done(); it.next()) {
-    ARDUINOJSON_ASSERT(it.key() != 0);
-    JsonString key(it.key(),
-                   it.ownsKey() ? JsonString::Copied : JsonString::Linked);
-    auto var = addMember(adaptString(key), resources);
-    if (!copyVariant(JsonVariant(var, resources),
-                     JsonVariantConst(it.data(), resources)))
-      return false;
-  }
-  return true;
-}
-
 template <typename TAdaptedString>
 inline VariantData* ObjectData::getMember(TAdaptedString key) const {
   return findKey(key).data();