path: root/ACE/TAO/TAO_IDL/be_include/be_visitor_component/servant_svs.h

//
// $Id$
//
/* -*- c++ -*- */
// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    servant_svs.h
//
// = DESCRIPTION
//    Concrete visitor for the Component node.
//    This provides for code generation for the Servant
//    class definition
//
// = AUTHOR
//    Jeff Parsons
//
// ============================================================================

#ifndef _BE_COMPONENT_SERVANT_SVS_H_
#define _BE_COMPONENT_SERVANT_SVS_H_

class be_visitor_servant_svs
  : public be_visitor_component_scope
{
  //
  // = TITLE
  //   be_visitor_servant_svs
  //
  // = DESCRIPTION
  //   This is a concrete visitor to generate the servant class decl
  //   for a component.
  //
  //
public:
  be_visitor_servant_svs (be_visitor_context *ctx);
  
  ~be_visitor_servant_svs (void);
  
  virtual int visit_component (be_component *node);
  virtual int visit_operation (be_operation *node);
  virtual int visit_attribute (be_attribute *node);
  virtual int visit_provides (be_provides *node);
  virtual int visit_uses (be_uses *node);
  virtual int visit_publishes (be_publishes *node);
  virtual int visit_emits (be_emits *node);
  virtual int visit_consumes (be_consumes *node);
  
private:
  void compute_slots (AST_Component *node);
                  
  void gen_provides_top (void);
  void gen_uses_top (void);
  void gen_publishes_top (void);
  void gen_emits_top (void);

private:
  be_interface *op_scope_;
  
  // Not used for now, but might be useful if generated
  // code is optimized.
  ACE_CDR::ULong n_provides_;
  ACE_CDR::ULong n_uses_;
  ACE_CDR::ULong n_publishes_;
  ACE_CDR::ULong n_emits_;
  ACE_CDR::ULong n_consumes_;
};

// ======================================================

class be_visitor_obv_factory_reg
  : public be_visitor_component_scope
{
public:
  be_visitor_obv_factory_reg (be_visitor_context *ctx);
  
  ~be_visitor_obv_factory_reg (void);
  
  virtual int visit_publishes (be_publishes *node);
  virtual int visit_emits (be_emits *node);
  virtual int visit_consumes (be_consumes *node);
  
private:
  void gen_obv_factory_registration (AST_Type *t);
};

// ======================================================

class be_visitor_attr_set : public be_visitor_component_scope
{
public:
  be_visitor_attr_set (be_visitor_context *ctx);
  
  ~be_visitor_attr_set (void);
  
  virtual int visit_attribute (be_attribute *node);
  
  // This visitor has nothing to do with ports, so we
  // can override these base class methods to be no-ops.
  virtual int visit_extended_port (be_extended_port *node);
  virtual int visit_mirror_port (be_mirror_port *node);
  virtual int visit_porttype (be_porttype *node);
};

// ======================================================

class be_visitor_facet_executor_block
  : public be_visitor_component_scope
{
public:
  be_visitor_facet_executor_block (be_visitor_context *ctx);
  
  ~be_visitor_facet_executor_block (void);
  
  virtual int visit_provides (be_provides *node);
};

// ======================================================

class be_visitor_connect_block
  : public be_visitor_component_scope
{
public:
  be_visitor_connect_block (be_visitor_context *ctx);
  
  ~be_visitor_connect_block (void);
  
  virtual int visit_uses (be_uses *node);
};

// ======================================================

class be_visitor_disconnect_block
  : public be_visitor_component_scope
{
public:
  be_visitor_disconnect_block (be_visitor_context *ctx);
  
  ~be_visitor_disconnect_block (void);
  
  virtual int visit_uses (be_uses *node);
};

// ======================================================

class be_visitor_receptacle_desc
  : public be_visitor_component_scope
{
public:
  be_visitor_receptacle_desc (be_visitor_context *ctx);
  
  ~be_visitor_receptacle_desc (void);
  
  virtual int visit_uses (be_uses *node);
  
private:
  ACE_CDR::ULong slot_;
};

// ======================================================

class be_visitor_subscribe_block
  : public be_visitor_component_scope
{
public:
  be_visitor_subscribe_block (be_visitor_context *ctx);
  
  ~be_visitor_subscribe_block (void);
  
  virtual int visit_publishes (be_publishes *node);
};

// ======================================================

class be_visitor_unsubscribe_block
  : public be_visitor_component_scope
{
public:
  be_visitor_unsubscribe_block (be_visitor_context *ctx);
  
  ~be_visitor_unsubscribe_block (void);
  
  virtual int visit_publishes (be_publishes *node);
};

// ======================================================

class be_visitor_event_source_desc
  : public be_visitor_component_scope
{
public:
  be_visitor_event_source_desc (be_visitor_context *ctx);
  
  ~be_visitor_event_source_desc (void);
  
  virtual int visit_publishes (be_publishes *node);
  
private:
  ACE_CDR::ULong slot_;
};

// ======================================================

class be_visitor_connect_consumer_block
  : public be_visitor_component_scope
{
public:
  be_visitor_connect_consumer_block (be_visitor_context *ctx);
  
  ~be_visitor_connect_consumer_block (void);
  
  virtual int visit_emits (be_emits *node);
};

// ======================================================

class be_visitor_disconnect_consumer_block
  : public be_visitor_component_scope
{
public:
  be_visitor_disconnect_consumer_block (be_visitor_context *ctx);
  
  ~be_visitor_disconnect_consumer_block (void);
  
  virtual int visit_emits (be_emits *node);
};

// ======================================================

class be_visitor_emitter_desc
  : public be_visitor_component_scope
{
public:
  be_visitor_emitter_desc (be_visitor_context *ctx);
  
  ~be_visitor_emitter_desc (void);
  
  virtual int visit_emits (be_emits *node);
  
private:
  ACE_CDR::ULong slot_;
};

// ======================================================

class be_visitor_populate_port_tables
  : public be_visitor_component_scope
{
public:
  be_visitor_populate_port_tables (be_visitor_context *ctx);
  
  ~be_visitor_populate_port_tables (void);
  
  virtual int visit_provides (be_provides *node);
  
  virtual int visit_consumes (be_consumes *node);
};

// ======================================================

/// Worker class passed to traverse_inheritance_graph(),
/// collects supported operations and attributes.
class Component_Op_Attr_Generator
  : public TAO_IDL_Inheritance_Hierarchy_Worker
{
public:
  Component_Op_Attr_Generator (be_visitor_scope * visitor);
  
  virtual int emit (be_interface * derived_interface,
                    TAO_OutStream * os,
                    be_interface * base_interface);

private:
  be_visitor_scope * visitor_;
};
                     
#endif /* _BE_COMPONENT_SERVANT_SVS_H_ */