data.hpp

/* VecMem project, part of the ACTS project (R&D line)
 *
 * (c) 2023-2025 CERN for the benefit of the ACTS project
 *
 * Mozilla Public License Version 2.0
 */
#pragma once
 
// Local include(s).
#include "vecmem/edm/details/data_traits.hpp"
#include "vecmem/edm/details/schema_traits.hpp"
#include "vecmem/edm/schema.hpp"
#include "vecmem/edm/view.hpp"
#include "vecmem/memory/memory_resource.hpp"
#include "vecmem/utils/types.hpp"
 
// System include(s).
#include <tuple>
 
namespace vecmem {
namespace edm {
 
template <typename T>
class data;
 
template <typename... VARTYPES>
class data<schema<VARTYPES...>> : public view<schema<VARTYPES...>> {
 
public:
    using schema_type = schema<VARTYPES...>;
    using view_type = view<schema_type>;
    using size_type = typename view_type::size_type;
    using tuple_type =
        std::tuple<typename details::data_type<VARTYPES>::type...>;
 
 
    data() = default;
    data(data&&) noexcept = default;
 
    data& operator=(data&&) noexcept = default;
 
    VECMEM_HOST
    data(size_type size, memory_resource& resource);
 
 
 
    VECMEM_HOST
    tuple_type& variables();
    VECMEM_HOST
    const tuple_type& variables() const;
 
 
private:
    tuple_type m_data;
 
};  // class data
 
}  // namespace edm
 
template <typename... VARTYPES>
VECMEM_HOST edm::view<edm::schema<VARTYPES...>>& get_data(
    edm::data<edm::schema<VARTYPES...>>& data);
 
template <typename... VARTYPES>
VECMEM_HOST edm::view<edm::details::add_const_t<edm::schema<VARTYPES...>>>
get_data(const edm::data<edm::schema<VARTYPES...>>& data);
 
}  // namespace vecmem
 
// Include the implementation.
#include "vecmem/edm/impl/data.ipp"