115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/** @file RCollector_aux.hpp
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*
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* Out-of-line definitions for RCollector template methods
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* that depend on RGCObject (avoiding #include cycle in RCollector.hpp).
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*
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* Included via user_hpp_includes in GCObject.json5.
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*
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* @author Roland Conybeare
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**/
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#pragma once
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#include <xo/facet/FacetRegistry.hpp>
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namespace xo {
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namespace mm {
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class ACollector;
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class AGCObject;
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/** defined here to avoid #include cycle, since
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* template obj<AGCObject,DRepr> awkward to make available
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* in RCollector.hpp
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**/
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template <typename Object>
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template <typename DRepr>
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void
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RGCObjectVisitor<Object>::visit_child(xo::facet::obj<AGCObject,DRepr> * p_obj)
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{
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this->visit_child(p_obj->iface(), (void **)&(p_obj->data_));
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}
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template <typename Object>
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template <typename DRepr>
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void
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RGCObjectVisitor<Object>::visit_child(DRepr ** p_repr)
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{
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// fetch static interface for DRepr (strip const: FacetImplementation specializations use non-const DRepr)
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auto iface = xo::facet::impl_for<AGCObject, std::remove_const_t<DRepr>>();
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this->visit_child(&iface, (void **)p_repr);
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}
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template <typename Object>
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template <typename AFacet, typename DRepr>
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requires (!std::is_same_v<AFacet, AGCObject>)
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void
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RGCObjectVisitor<Object>::visit_poly_child(obj<AFacet, DRepr> * p_objs)
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{
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if (*p_objs) {
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auto e = xo::facet::FacetRegistry::instance().variant<AGCObject,AFacet>(*p_objs);
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this->visit_child(e.iface(), (void **)&(p_objs->data_));
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}
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}
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// ----- DEPRECATED -----
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//
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// Moving these methods to RGCObjectVisitor
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/** defined here to avoid #include cycle, since
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* template obj<AGCObject,DRepr> awkward to make available
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* in RCollector.hpp
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**/
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template <typename Object>
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template <typename DRepr>
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void
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RCollector<Object>::forward_inplace(xo::facet::obj<AGCObject,DRepr> * p_obj)
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{
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this->forward_inplace(p_obj->iface(), (void **)&(p_obj->data_));
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}
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template <typename Object>
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template <typename DRepr>
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void
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RCollector<Object>::forward_inplace(DRepr ** p_repr)
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{
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// fetch static interface for DRepr (strip const: FacetImplementation specializations use non-const DRepr)
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auto iface = xo::facet::impl_for<AGCObject, std::remove_const_t<DRepr>>();
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this->forward_inplace(&iface, (void **)p_repr);
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}
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template <typename Object>
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template <typename AFacet, typename DRepr>
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requires (!std::is_same_v<AFacet, AGCObject>)
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void
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RCollector<Object>::forward_pivot_inplace(obj<AFacet, DRepr> * p_objs)
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{
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if (*p_objs) {
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auto e = xo::facet::FacetRegistry::instance().variant<AGCObject,AFacet>(*p_objs);
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this->forward_inplace(e.iface(), (void **)&(p_objs->data_));
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}
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}
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// ----- mm_do_assign -----
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/** gc-aware assignment; engage special book-keeping for cross-gen pointers **/
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inline void mm_do_assign(obj<ACollector> & gc,
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void * parent,
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obj<AGCObject> * p_lhs,
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obj<AGCObject> & rhs)
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{
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if (gc.data()) {
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gc.assign_member(parent, p_lhs, rhs);
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} else {
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// assume null collector downstream from allocator that does not provide collection.
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// In that no additional assignment work.
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*p_lhs = rhs;
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}
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};
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}
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}
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/* end RCollector_aux.hpp */
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