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xo-interpreter: + toplevel env in VSM

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This commit is contained in:
Roland Conybeare 2025-11-23 21:41:14 -05:00
commit eec5bc0981
2 changed files with 32 additions and 2 deletions
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13
include/xo/alloc/GC.hpp
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@ -7,6 +7,7 @@
#include "ArenaAlloc.hpp"
#include "GcStatistics.hpp"
#include "Object.hpp"
#include "xo/callback/UpCallbackSet.hpp"
#include "xo/indentlog/print/array.hpp"
#include <vector>
@ -154,6 +155,9 @@ namespace xo {
**/
static up<GC> make(const Config & config);
/** runtime downcast **/
static GC * from(IAlloc * mm);
const Config & config() const { return config_; }
std::uint8_t nursery_polarity() const { return nursery_polarity_; }
std::uint8_t tenured_polarity() const { return tenured_polarity_; }
@ -230,6 +234,15 @@ namespace xo {
* from @c *addr
**/
void add_gc_root(Object ** addr);
/** reverse the effect of previous call to @ref add_gc_root **/
void remove_gc_root(Object ** addr);
/** convenience wrapper **/
template <typename T>
void add_gc_root_dwim(gp<T> * p) { this->add_gc_root(reinterpret_cast<Object**>(p->ptr_address())); }
template <typename T>
void remove_gc_root_dwim(gp<T> * p) { this->remove_gc_root(reinterpret_cast<Object**>(p->ptr_address())); }
/** may optionally use this to observe GC copy phase.
* Will be invoked once _per surviving object_, so not cheap.
* Intended for GC visualization.