54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
/** @file AGCObject.hpp
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*
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* @author Roland Conybeare, Dec 2025
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**/
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#pragma once
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#include "IAllocator_Any.hpp"
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#include "RAllocator.hpp"
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#include "xo/facet/facet_implementation.hpp"
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#include "xo/facet/typeseq.hpp"
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#include "xo/facet/obj.hpp" // for obj<AAllocator> in shallow_copy
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#include <cstdint>
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#include <cstddef>
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namespace xo {
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namespace mm {
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using Copaque = const void *;
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using Opaque = void *;
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/** @class AObject
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* @brief Abstract facet for collector-eligible data
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*
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* Data that supports AGCObject can have memory managed
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* by ACollector
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**/
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struct AGCObject {
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using size_type = std::size_t;
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/** RTTI: unique id# for actual runtime data representation **/
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virtual int32_t _typeseq() const noexcept = 0;
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virtual size_type shallow_size(Copaque d) const noexcept = 0;
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virtual Opaque * shallow_copy(Copaque d,
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obj<AAllocator> mm) const noexcept = 0;
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virtual size_type forward_children(Opaque d) const noexcept = 0;
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};
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// implementation IGCObject_DRepr of AGCObject for state DRepr
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// should provide a specialization:
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//
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// template <>
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// struct xo::facet::FacetImplementation<AGCObjectx, DRepr> {
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// using ImplType = IGCObject_DRepr;
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// };
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//
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// then IGCObject_ImplType<DRepr> --> IGCObject_DRepr
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//
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template <typename DRepr>
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using IGCObject_ImplType = xo::facet::FacetImplType<AGCObject, DRepr>;
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} /*namespace mm*/
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} /*namespace xo*/
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/* end AGCObject.hpp */
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