OpenEnded base — same in-class declaration shape as ClosedEnded (TAGVAL_ENTRY + using values_t = tagval::Values<...>) but additionally accepts plugin entries declared at namespace scope with TAGVAL_EXTERN_ENTRY, which register into OpenEndedRegistry<Owner> at static-init.
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#include <tagval/base.hpp>#include <tagval/entry.hpp>#include <tagval/error.hpp>#include <tagval/openended_registry.hpp>#include <tagval/values.hpp>#include <commons/fixed_string.hpp>#include <concepts>#include <expected>#include <ranges>#include <string>#include <string_view>
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Classes | |
| class | tagval::OpenEnded< Id, Derived > |
| CRTP base for tag-value kinds whose values are partly compile-time (Derived::values_t) and partly contributed by plugins via TAGVAL_EXTERN_ENTRY. More... | |
Namespaces | |
| namespace | tagval |
| namespace | tagval::detail |
Concepts | |
| concept | tagval::detail::HasValuesT |
Detailed Description
OpenEnded base — same in-class declaration shape as ClosedEnded (TAGVAL_ENTRY + using values_t = tagval::Values<...>) but additionally accepts plugin entries declared at namespace scope with TAGVAL_EXTERN_ENTRY, which register into OpenEndedRegistry<Owner> at static-init.
Required Derived shape:
- Derives from
tagval::OpenEnded<"id", Derived>. - Optionally declares
using values_t = tagval::Values<...>— the compile-time portion of the value set. - May contribute extern entries via TAGVAL_EXTERN_ENTRY[_AS] at namespace scope.
Storage model: every entry contributes a pointer to a pinned tagval::metadata_v<E> constant. OpenEndedRegistry<Derived> stores these pointers (not copies); handles point at the same pinned record everywhere, so pointer equality matches across value<E>(), of(code), and try_of(code) regardless of which translation unit produced the entry.
