xo-alloc2/include/xo/alloc2/gc/RGCObjectVisitor_aux.hpp
Roland Conybeare b1d2ae6f19 xo-gc stack: refactor + streamline.
Retiring unused Collector typealiases.
Fix #include topology.
Fix/improve write barrier setup.
2026-05-02 13:49:29 -04:00

61 lines
1.9 KiB
C++

/** @file RGCObjectVisitor_aux.hpp
*
* Out-of-line definitions for RCollector template methods
* that depend on RGCObject (avoiding #include cycle in RCollector.hpp).
*
* Included via user_hpp_includes in GCObject.json5.
*
* @author Roland Conybeare
**/
#pragma once
#include "gc/RGCObjectVisitor.hpp"
#include <xo/facet/FacetRegistry.hpp>
namespace xo {
namespace mm {
class ACollector;
class AGCObject;
/** defined here to avoid #include cycle, since
* template obj<AGCObject,DRepr> awkward to make available
* in RCollector.hpp
**/
template <typename Object>
template <typename DRepr>
void
RGCObjectVisitor<Object>::visit_child(VisitReason reason,
xo::facet::obj<AGCObject,DRepr> * p_obj)
{
this->visit_child(reason, p_obj->iface(), (void **)&(p_obj->data_));
}
template <typename Object>
template <typename DRepr>
void
RGCObjectVisitor<Object>::visit_child(VisitReason reason, DRepr ** p_repr)
{
// fetch static interface for DRepr (strip const: FacetImplementation specializations use non-const DRepr)
auto iface = xo::facet::impl_for<AGCObject, std::remove_const_t<DRepr>>();
this->visit_child(reason, &iface, (void **)p_repr);
}
template <typename Object>
template <typename AFacet, typename DRepr>
requires (!std::is_same_v<AFacet, AGCObject>)
void
RGCObjectVisitor<Object>::visit_poly_child(VisitReason reason, obj<AFacet, DRepr> * p_objs)
{
if (*p_objs) {
auto e = xo::facet::FacetRegistry::instance().variant<AGCObject,AFacet>(*p_objs);
this->visit_child(reason, e.iface(), (void **)&(p_objs->data_));
}
}
} /*namespace mm*/
} /*namespace xo*/
/* end RCollector_aux.hpp */