src/ozulis/visitors/visitor.hh

   1 #ifndef VISITOR_VISITOR_HH
   2 # define VISITOR_VISITOR_HH
   3
   4 # include <ozulis/core/id-visitor.hh>
   5 # include <ozulis/ast/ast.hh>
   6
   7 namespace ozulis
   8 {
   9   namespace visitors
  10   {
  11     class GetNodeId
  12     {
  13     public:
  14       static inline id_t id(const ast::Node & node)
  15       {
  16         return node.nodeType;
  17       }
  18     };
  19
  20     template <class T, class Node, typename ...Args>
  21     class VisitorBase : public core::IdVisitor<T, Node, GetNodeId, T &, Args...>
  22     {
  23     };
  24
  25     template <class T, typename ...Args>
  26     class Visitor : public VisitorBase<T, ast::Node, Args...>
  27     {
  28     public:
  29       typedef Visitor<T, Args...> Visitor_t;
  30     };
  31
  32     template <class T, typename ...Args>
  33     class ConstVisitor : public VisitorBase<T, const ast::Node, Args...>
  34     {
  35     public:
  36       typedef ConstVisitor<T, Args...> ConstVisitor_t;
  37     };
  38   }
  39 }
  40
  41 #endif /* !VISITORS_VISITOR_HH */