Function canVisitStructure_

include/daScript/simulate/data_walker.h:141–149

        using loop_point = pair<void *,uint64_t>;
        bool canVisitStructure_ ( char * ps, StructInfo * info ) {
            auto it = find_if(visited.begin(),visited.end(),[&]( const loop_point & t ){
                return t.first==ps && t.second==info->hash;
            });
            if (it!=visited.end()) {
                return revisitStructure(ps, info);
            }
            return canVisitStructure(ps, info);
        }
        bool canVisitHandle_ ( char * ps, TypeInfo * info ) {
            auto it = find_if(visited_handles.begin(),visited_handles.end(),[&]( const loop_point & t ){
                return t.first==ps && t.second==info->hash;