parcel::CellLike Concept Reference

Concept naming the static interface every cell type must expose. More...

#include <cell.h>

Concept definition

template<typename T>
concept parcel::CellLike =  std::derived_from<T, ICell> && requires {
    { T::kind_id } -> std::convertible_to<std::string_view>;
    {
        T::from_json(std::declval<json_t const&>(), std::declval<ParcelRegistry const&>())
    } -> std::convertible_to<cell_t>;
    { T::descriptor() } -> std::convertible_to<cell_type_descriptor_t>;
}

Detailed Description

Concept naming the static interface every cell type must expose.

A CellLike type derives from ICell, declares a kind_id string view, provides a from_json(j, registry) factory, and exposes a static descriptor() returning a cell_type_descriptor_t.

Template Parameters

T	Candidate cell type.