// This may look like C, but it's really -*- C++ -*-
/*

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*/

#ifndef _AST_MODULE_AST_MODULE_HH
#define _AST_MODULE_AST_MODULE_HH

#include "ast_decl.h"
#include "utl_scope.h"
#include "ace/Unbounded_Set.h"

// NOTE: add(AST_EnumValue *) is defined here because enums can
// be defined manifest locally; the constants defined in these
// enums are inserted in the enclosing scope.

class AST_Template_Module_Inst;
class AST_Template_Module_Ref;

class TAO_IDL_FE_Export AST_Module : public virtual AST_Decl,
                                     public virtual UTL_Scope
{
public:
  static AST_Decl::NodeType const NT;

  // Constructor.
  AST_Module (UTL_ScopedName *n, AST_Module *prev = 0);

  // Destructor.
  virtual ~AST_Module (void);

  // Cleanup function.
  virtual void destroy (void);

  // Narrowing.
  DEF_NARROW_FROM_DECL(AST_Module);
  DEF_NARROW_FROM_SCOPE(AST_Module);

  // AST Dumping.
  virtual void dump (ACE_OSTREAM_TYPE &o);

  // Involved in OBV_ namespace generation.
  void set_has_nested_valuetype (void);
  bool has_nested_valuetype (void);

  // Allows adding an interface at a later point.
  // The interface i is inserted after interface ix, if
  // ix is not null.
  int be_add_interface (AST_Interface *i,
                        AST_Interface *ix = 0);

  // Allows adding a valuetype at a later point.
  int be_add_valuetype (AST_ValueType *v);

  // Has this node been referenced here already?
  // Override of method in UTL_Scope.
  virtual bool referenced (AST_Decl *e,
                           Identifier *id = 0);

  // Accessor to this module's previous opening.
  AST_Module *previous_opening ();

  // Called to look up some declaration
  // in a previous opening of this module.
  AST_Decl *look_in_prev_mods_local (Identifier *e,
                                     bool ignore_fwd = false);

  // Called to look up some declaration
  // in a previous opening of this module.
  AST_Decl *look_in_prev_mods (UTL_ScopedName *e,
                               bool full_def_only,
                               AST_Decl *&final_parent_decl);

  // Visiting.
  virtual int ast_accept (ast_visitor *visitor);

  // Accessors for the member.
  AST_Template_Module_Inst *from_inst (void) const;
  void from_inst (AST_Template_Module_Inst *node);

  // Accessors for the member.
  AST_Template_Module_Ref *from_ref (void) const;
  void from_ref (AST_Template_Module_Ref *node);

  // Override that looks in previous openings.
  virtual AST_Decl *special_lookup (UTL_ScopedName *e,
                                    bool full_def_only,
                                    AST_Decl *&final_parent_decl);

  // We actually want to match the LAST module found in
  // the scope being searched not the FIRST one in the
  // list.
  virtual AST_Decl *adjust_found (bool ignore_fwd, bool full_def_only);

  // Scope Management Protocol

  virtual
  AST_PredefinedType *fe_add_predefined_type (AST_PredefinedType *t);

  virtual
  AST_Module *fe_add_module (AST_Module *m);

  virtual
  AST_Template_Module_Inst *fe_add_template_module_inst (
    AST_Template_Module_Inst *m);

  virtual
  AST_Interface *fe_add_interface (AST_Interface *i);

  virtual
  AST_InterfaceFwd *fe_add_interface_fwd (AST_InterfaceFwd *i);

  virtual
  AST_ValueType *fe_add_valuetype (AST_ValueType *i);

  virtual
  AST_ValueTypeFwd *fe_add_valuetype_fwd (AST_ValueTypeFwd *i);

  virtual
  AST_EventType *fe_add_eventtype (AST_EventType *i);

  virtual
  AST_EventTypeFwd *fe_add_eventtype_fwd (AST_EventTypeFwd *i);

  virtual
  AST_Component *fe_add_component (AST_Component *i);

  virtual
  AST_ComponentFwd *fe_add_component_fwd (AST_ComponentFwd *i);

  virtual
  AST_Connector *fe_add_connector (AST_Connector *i);

  virtual
  AST_Home *fe_add_home (AST_Home *i);

  virtual
  AST_Constant *fe_add_constant (AST_Constant *c);

  virtual
  AST_Exception *fe_add_exception (AST_Exception *e);

  virtual
  AST_Union *fe_add_union (AST_Union *u);

  virtual
  AST_UnionFwd *fe_add_union_fwd (AST_UnionFwd *u);

  virtual
  AST_Structure *fe_add_structure (AST_Structure *s);

  virtual
  AST_StructureFwd *fe_add_structure_fwd (AST_StructureFwd *s);

  virtual
  AST_Enum *fe_add_enum (AST_Enum *e);

  virtual
  AST_EnumVal *fe_add_enum_val (AST_EnumVal *v);

  virtual
  AST_Typedef *fe_add_typedef (AST_Typedef *t);

  virtual
  AST_Native *fe_add_native (AST_Native *n);

  virtual
  AST_ValueBox *fe_add_valuebox (AST_ValueBox *vb);

  virtual
  AST_PortType *fe_add_porttype (AST_PortType *pt);

  // Reset the last_in_same_parent_scope_ member to ourself
  // (called by AST_Root::destroy on the CORBA module containing
  // the basic types, since it isn't destroyed between processing
  // multiple IDL files.
  void reset_last_in_same_parent_scope (void);

private: // Data
  bool pd_has_nested_valuetype_;

  AST_Module *previous_opening_;
  /// The immediatly previous opening of this module.

  AST_Module *last_in_same_parent_scope_;
  /// Pointer to the last opening of this module in the same parent

  AST_Template_Module_Inst *from_inst_;
  /// Reference to the instantiation that created us, if any.

  AST_Template_Module_Ref *from_ref_;
  /// Reference to the 'alias' type that created us, if any.
};

#endif           // _AST_MODULE_AST_MODULE_HH
