dvander@45: /* vim: set ts=4 sw=4 tw=99 et:
dvander@45:  *
dvander@45:  * Copyright (C) 2012 David Anderson
dvander@45:  *
dvander@195:  * This file is part of SourcePawn.
dvander@45:  *
dvander@195:  * SourcePawn is free software: you can redistribute it and/or modify it under
dvander@45:  * the terms of the GNU General Public License as published by the Free
dvander@45:  * Software Foundation, either version 3 of the License, or (at your option)
dvander@45:  * any later version.
dvander@45:  * 
dvander@195:  * SourcePawn is distributed in the hope that it will be useful, but WITHOUT ANY
dvander@45:  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
dvander@45:  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
dvander@45:  *
dvander@45:  * You should have received a copy of the GNU General Public License along with
dvander@195:  * SourcePawn. If not, see http://www.gnu.org/licenses/.
dvander@45:  */
dvander@52: #ifndef _include_jc_virtual_object_visitor_h_
dvander@52: #define _include_jc_virtual_object_visitor_h_
dvander@45: 
dvander@59: namespace ke {
dvander@45: 
dvander@195: class Zone;
dvander@45: class Object;
dvander@45: 
dvander@45: class VirtualObjectVisitor
dvander@45: {
dvander@45:   public:
dvander@45:     virtual void visit(Object **ptr) = 0;
dvander@45: };
dvander@45: 
dvander@195: // This is a helper class for automatically rooting C++ objects that need
dvander@195: // special tracing. It is implemented in Zone.
dvander@195: class AutoRooted
dvander@195: {
dvander@195:   public:
dvander@195:     AutoRooted(Zone *zone);
dvander@195:     ~AutoRooted();
dvander@195: 
dvander@195:     virtual void accept(VirtualObjectVisitor *visitor) = 0;
dvander@195: 
dvander@195:   private:
dvander@195:     Zone *zone_;
dvander@195:     AutoRooted *prev_;
dvander@195: };
dvander@195: 
dvander@45: }
dvander@45: 
dvander@52: #endif // _include_jc_virtual_object_visitor_h_