src/ozulis/visitors/simplify.hh

   1 #ifndef VISITORS_SIMPLIFY_HH
   2 # define VISITORS_SIMPLIFY_HH
   3
   4 # include <vector>
   5
   6 # include <ozulis/ast/ast.hh>
   7 # include <ozulis/visitors/visitor.hh>
   8
   9 namespace ozulis
  10 {
  11   namespace visitors
  12   {
  13     /**
  14      * @brief transforms an AST to 3 address instructions.
  15      */
  16     class Simplify : public Visitor<Simplify>
  17     {
  18     public:
  19       Simplify();
  20       virtual ~Simplify();
  21
  22       static void initBase();
  23
  24       void simplifyLValue(ast::Exp *& exp);
  25       void simplify(ast::Exp *& node);
  26       void makeTmpResult(ast::Exp & node);
  27
  28       std::string currentId() const;
  29       std::string nextId();
  30
  31       /// @brief the new list of 3 address instructions
  32       std::vector<ast::Node *> simplifications;
  33       /// @brief the child which replace the previously visited node
  34       ast::Exp *               replacement;
  35       /// @brief the next id for register count
  36       int                      nextId_;
  37       /// @brief the current scope, to retype check some generated expressions
  38       ast::Scope *             scope;
  39     };
  40   }
  41 }
  42
  43 #endif /* !VISITORS_SIMPLIFY_HH */