TAO/TAO_IDL/be_include/be_component.h

   1 /* -*- c++ -*- */
   2
   3 //=============================================================================
   4 /**
   5  *  @file    be_component.h
   6  *
   7  *  Extension of class AST_Component that provides additional means for C++
   8  *  mapping of an interface.
   9  *
  10  *  @author Jeff Parsons
  11  */
  12 //=============================================================================
  13
  14 #ifndef TAO_BE_COMPONENT_H
  15 #define TAO_BE_COMPONENT_H
  16
  17 #include "be_interface.h"
  18 #include "ast_component.h"
  19
  20 class AST_PortType;
  21
  22 /**
  23  * The back end extension of the AST_Component class
  24  */
  25 class be_component : public virtual AST_Component,
  26                      public virtual be_interface
  27 {
  28 public:
  29   be_component (UTL_ScopedName *n,
  30                 AST_Component *base_component,
  31                 AST_Type **supports,
  32                 long n_supports,
  33                 AST_Interface **supports_flat,
  34                 long n_supports_flat);
  35
  36   ~be_component (void);
  37
  38   /// Override of the AST method to eliminate narrowing of
  39   /// the return value. Non-virtual.
  40   be_component *base_component (void) const;
  41
  42   /// Catch BE-specific members before delegating to the base class.
  43   virtual void redefine (AST_Interface *from);
  44
  45   /// Cleanup function.
  46   virtual void destroy (void);
  47
  48   /// Visiting.
  49   virtual int accept (be_visitor *visitor);
  50
  51   // Need for public access to fe_add_structure and fe_add_typedef,
  52   // used to add implied IDL nodes created for 'uses multiple' declarations.
  53   AST_Structure *be_add_structure (AST_Structure *t);
  54   AST_Typedef *be_add_typedef (AST_Typedef *t);
  55
  56   ACE_CDR::ULong n_provides (void) const;
  57   ACE_CDR::ULong n_remote_provides (void) const;
  58   ACE_CDR::ULong n_uses (void) const;
  59   ACE_CDR::ULong n_remote_uses (void) const;
  60   bool has_uses_multiple (void) const;
  61   ACE_CDR::ULong n_publishes (void) const;
  62   ACE_CDR::ULong n_consumes (void) const;
  63   ACE_CDR::ULong n_emits (void) const;
  64
  65   /// Update the has_* members.
  66   void scan (UTL_Scope *s);
  67
  68   /// Generate the "public virtual" entries in the stub header.
  69   virtual void gen_stub_inheritance (TAO_OutStream *os);
  70
  71   /// Generate the "public virtual" entries in the skel header.
  72   virtual void gen_skel_inheritance (TAO_OutStream *os);
  73
  74   /// Generate the string compares for ancestors in _is_a().
  75   virtual int gen_is_a_ancestors (TAO_OutStream *os);
  76
  77   // Narrowing.
  78
  79   DEF_NARROW_FROM_DECL (be_component);
  80   DEF_NARROW_FROM_SCOPE (be_component);
  81
  82 private:
  83   /// Specialized version for mirror ports.
  84   void mirror_scan (AST_PortType *p);
  85
  86 private:
  87   /// Used by visitors to reduce footprint.
  88   ACE_CDR::ULong n_provides_;
  89   ACE_CDR::ULong n_remote_provides_;
  90   ACE_CDR::ULong n_uses_;
  91   ACE_CDR::ULong n_remote_uses_;
  92   bool has_uses_multiple_;
  93   ACE_CDR::ULong n_publishes_;
  94   ACE_CDR::ULong n_consumes_;
  95   ACE_CDR::ULong n_emits_;
  96 };
  97
  98 #endif  // if !defined