1  
       2  /* Compiler implementation of the D programming language
       3   * Copyright (C) 1999-2023 by The D Language Foundation, All Rights Reserved
       4   * written by Walter Bright
       5   * https://www.digitalmars.com
       6   * Distributed under the Boost Software License, Version 1.0.
       7   * https://www.boost.org/LICENSE_1_0.txt
       8   * https://github.com/dlang/dmd/blob/master/src/dmd/ast_node.h
       9   */
      10  
      11  #pragma once
      12  
      13  #include "root/object.h"
      14  
      15  class Visitor;
      16  
      17  class ASTNode : public RootObject
      18  {
      19      virtual void accept(Visitor*) = 0;
      20  };