// $Id: ast_exception.cpp 89076 2010-02-18 22:54:36Z parsons $

/*

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*/

// AST_Exceptions denote IDL exception declarations
// AST_Exceptions are a subclass of AST_Decl (they are not types!)
// and of UTL_Scope.

#include "ast_exception.h"
#include "ast_field.h"
#include "ast_union.h"
#include "ast_enum.h"
#include "ast_enum_val.h"
#include "ast_typedef.h"
#include "ast_visitor.h"

#include "utl_err.h"
#include "utl_identifier.h"
#include "utl_indenter.h"

AST_Decl::NodeType const
AST_Exception::NT = AST_Decl::NT_except;

AST_Exception::AST_Exception (UTL_ScopedName *n,
                              bool local,
                              bool abstract)
  : COMMON_Base (local,
                 abstract),
    AST_Decl (AST_Decl::NT_except,
              n),
    AST_Type (AST_Decl::NT_except,
              n),
    AST_ConcreteType (AST_Decl::NT_except,
                      n),
    UTL_Scope (AST_Decl::NT_except),
    AST_Structure (AST_Decl::NT_except,
                   n,
                   local,
                   abstract)
{
}

AST_Exception::~AST_Exception (void)
{
}

// Public operations.

// Are we or the parameter node involved in any recursion?
bool
AST_Exception::in_recursion (ACE_Unbounded_Queue<AST_Type *> &list)
{
  // Proceed if the number of members in our scope is greater than 0.
  if (this->nmembers () > 0)
    {
      list.enqueue_tail (this);

      // Continue until each element is visited.
      for (UTL_ScopeActiveIterator i (this, IK_decls);!i.is_done ();i.next ())
        {
          AST_Field *field = AST_Field::narrow_from_decl (i.item ());

          if (field == 0)
            // This will be an enum value or other legitimate non-field
            // member - in any case, no recursion.
            {
              continue;
            }

          AST_Type *type = field->field_type ();

          if (type->node_type () == AST_Decl::NT_typedef)
            {
              AST_Typedef *td = AST_Typedef::narrow_from_decl (type);
              type = td->primitive_base_type ();
            }

          if (type == 0)
            {
              ACE_ERROR_RETURN ((LM_ERROR,
                                 ACE_TEXT ("(%N:%l) AST_Exception::")
                                 ACE_TEXT ("in_recursion - ")
                                 ACE_TEXT ("bad field type\n")),
                                0);
            }

          if (type->in_recursion (list))
            {
              this->in_recursion_ = 1;
              idl_global->recursive_type_seen_ = true;
              return this->in_recursion_;
            }
        }
    }

  // Not in recursion.
  this->in_recursion_ = 0;
  return this->in_recursion_;
}

// Dump this AST_Exception node to the ostream o.
void
AST_Exception::dump (ACE_OSTREAM_TYPE &o)
{
  this->dump_i (o, "exception ");
  this->local_name ()->dump (o);
  this->dump_i (o, " {\n");
  UTL_Scope::dump (o);
  idl_global->indent ()->skip_to (o);
  this->dump_i (o, "}");
}

int
AST_Exception::ast_accept (ast_visitor *visitor)
{
  return visitor->visit_exception (this);
}

void
AST_Exception::destroy (void)
{
  this->AST_Structure::destroy ();
}

IMPL_NARROW_FROM_DECL(AST_Exception)
IMPL_NARROW_FROM_SCOPE(AST_Exception)
