Adapt RecordComponent implementation based on new API

Author: franzpoeschel

include/openPMD/RecordComponent.hpp

@@ -250,8 +250,8 @@ class RecordComponent : public BaseRecordComponent
     template <typename T>
     std::shared_ptr<T> loadChunk(Offset = {0u}, Extent = {-1u});
 
-    using shared_ptr_dataset_types = auxiliary::detail::
-        map_variant<auxiliary::detail::as_shared_pointer, dataset_types>::type;
+    using shared_ptr_dataset_types =
+        auxiliary::detail::shared_ptr_dataset_types;
 
     /** std::variant-based version of allocating loadChunk<T>(Offset, Extent)
      *
@@ -289,25 +289,6 @@ class RecordComponent : public BaseRecordComponent
     template <typename T>
     void loadChunk(std::shared_ptr<T> data, Offset offset, Extent extent);
 
-    /** Load a chunk of data into pre-allocated memory, array version.
-     *
-     * @param data   Preallocated, contiguous buffer, large enough to load the
-     *               the requested data into it.
-     *               The shared pointer must own and manage the buffer.
-     *               Optimizations might be implemented based on this
-     *               assumption (e.g. skipping the operation if the backend
-     *               is the unique owner).
-     *               The array-based overload helps avoid having to manually
-     *               specify the delete[] destructor (C++17 feature).
-     * @param offset Offset within the dataset. Set to {0u} for full selection.
-     * @param extent Extent within the dataset, counted from the offset.
-     *               Set to {-1u} for full selection.
-     *               If offset is non-zero and extent is {-1u} the leftover
-     *               extent in the record component will be selected.
-     */
-    template <typename T>
-    void loadChunk(std::shared_ptr<T[]> data, Offset offset, Extent extent);
-
     /** Load a chunk of data into pre-allocated memory, raw pointer version.
      *
      * @param data   Preallocated, contiguous buffer, large enough to load the
@@ -347,18 +328,6 @@ class RecordComponent : public BaseRecordComponent
     template <typename T>
     void storeChunk(std::shared_ptr<T> data, Offset offset, Extent extent);
 
-    /** Store a chunk of data from a chunk of memory, array version.
-     *
-     * @param data   Preallocated, contiguous buffer, large enough to read the
-     *               the specified data from it.
-     *               The array-based overload helps avoid having to manually
-     *               specify the delete[] destructor (C++17 feature).
-     * @param offset Offset within the dataset.
-     * @param extent Extent within the dataset, counted from the offset.
-     */
-    template <typename T>
-    void storeChunk(std::shared_ptr<T[]> data, Offset offset, Extent extent);
-
     /** Store a chunk of data from a chunk of memory, unique pointer version.
      *
      * @param data   Preallocated, contiguous buffer, large enough to read the
@@ -520,9 +489,6 @@ class RecordComponent : public BaseRecordComponent
      */
     RecordComponent &makeEmpty(Dataset d);
 
-    void storeChunk(
-        auxiliary::WriteBuffer buffer, Datatype datatype, Offset o, Extent e);
-
     void storeChunk_impl(
         auxiliary::WriteBuffer buffer,
         Datatype datatype,