vpr/src/base/netlist_walker.h

#ifndef NETLIST_WALKER_H
#define NETLIST_WALKER_H
#include "vpr_types.h"

class NetlistVisitor;

class NetlistWalker {

    public:
        NetlistWalker(NetlistVisitor& netlist_visitor)
            : visitor_(netlist_visitor) {}
        
        void walk();

    private:
        void walk_atoms(const t_pb* pb);

    private:
        NetlistVisitor& visitor_;
};

class NetlistVisitor {

    public:
        virtual ~NetlistVisitor() = default;
        void start() { start_impl(); }
        void visit_top(const char* top_level_name) { visit_top_impl(top_level_name); }
        void visit_clb(const t_pb* clb) { visit_clb_impl(clb); }
        void visit_atom(const t_pb* atom) { visit_atom_impl(atom); }
        void finish() { finish_impl(); }

    protected:
        //All implementation methods are no-ops in this base class
        virtual void start_impl();
        virtual void visit_top_impl(const char* top_level_name);
        virtual void visit_clb_impl(const t_pb* clb);
        virtual void visit_atom_impl(const t_pb* atom);
        virtual void finish_impl();
};
#endif