TAO/TAO_IDL/be_include/be_visitor_argument/argument.h

   1
   2 //=============================================================================
   3 /**
   4  *  @file    argument.h
   5  *
   6  *  Visitors for generation of code for Arguments
   7  *
   8  *  @author Aniruddha Gokhale
   9  */
  10 //=============================================================================
  11
  12
  13 #ifndef _BE_VISITOR_ARGUMENT_ARGUMENT_H_
  14 #define _BE_VISITOR_ARGUMENT_ARGUMENT_H_
  15
  16 #include "ast_argument.h"
  17
  18 /**
  19  * @class be_visitor_args
  20  *
  21  * @brief Generates the code for arguments output.
  22  *
  23  * At several stages in the code generation a node of type
  24  * "be_operation" is visited, and the code for its arguments must
  25  * be generated.
  26  * Sometimes the argument declarations must be generated (such as
  27  * in the class declaration), other the arguments names (such as
  28  * in method invocations).
  29  * This class implements some common functionality required across all
  30  * argument visitors
  31  */
  32 class be_visitor_args : public be_visitor_decl
  33 {
  34 public:
  35   /// constructor
  36   be_visitor_args (be_visitor_context *ctx);
  37
  38   /// destructor
  39   virtual ~be_visitor_args (void);
  40
  41   //= helper
  42   /// helper that produces either a nested name for
  43   /// header files or full name for others.
  44   virtual const char *type_name (be_type *type,
  45                                  const char *suffix = 0);
  46
  47   /// return the direction of the argument node
  48   virtual AST_Argument::Direction direction (void);
  49
  50   /// must be overridden by derived classes
  51   virtual int visit_argument (be_argument *node);
  52
  53   void set_fixed_direction (AST_Argument::Direction direction);
  54
  55 protected:
  56   /// Consolidation of common code from invoke_cs and marshal_ss
  57   /// for predefined type args.
  58   int gen_pd_arg (be_predefined_type *node,
  59                   bool for_stub);
  60
  61 private:
  62   int fixed_direction_;
  63 };
  64
  65 #endif /* _BE_VISITOR_ARGUMENT_ARGUMENT_H_ */