/*

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Copyright 1992, 1993, 1994 Sun Microsystems, Inc.  Printed in the United
States of America.  All Rights Reserved.

This product is protected by copyright and distributed under the following
license restricting its use.

The Interface Definition Language Compiler Front End (CFE) is made
available for your use provided that you include this license and copyright
notice on all media and documentation and the software program in which
this product is incorporated in whole or part. You may copy and extend
functionality (but may not remove functionality) of the Interface
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program developed by you or with the express written consent of Sun
Microsystems, Inc. ("Sun").

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distribution of Interface Definition Language CFE as permitted herein.

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with this license.  Upon termination, you shall destroy or return all code
and documentation for the Interface Definition Language CFE.

INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED AS IS WITH NO WARRANTIES OF
ANY KIND INCLUDING THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS
FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR ARISING FROM A COURSE OF
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*/

#ifndef _AST_SEQUENCE_AST_SEQUENCE_HH
#define _AST_SEQUENCE_AST_SEQUENCE_HH

#include "ast_concrete_type.h"


class AST_Expression;
class AST_Type;

class TAO_IDL_FE_Export AST_Sequence : public virtual AST_ConcreteType
{
public:
  AST_Sequence (AST_Expression *max_size,
                AST_Type *bt,
                UTL_ScopedName *n,
                bool local,
                bool abstract);

  virtual ~AST_Sequence ();

  virtual bool in_recursion (ACE_Unbounded_Queue<AST_Type *> &list);
  // Are we or the node represented by node involved in recursion.

  // Data Accessors.
  AST_Expression *max_size ();

  AST_Type *base_type () const;

  /**
   * Returns the fully dealiased base type if it's a typedef. If it's not a
   * typedef, the it returns the same value as as base_type().
   */
  AST_Type *primitive_base_type () const;

  virtual bool unbounded () const;
  // Is this sequence bounded or not.

  // Recursively called on valuetype to check for legal use as
  // a primary key. Overridden for valuetype, struct, sequence,
  // union, array, typedef, and interface.
  virtual bool legal_for_primary_key () const;

  // Is the element type a forward declared struct or union
  // that hasn't yet been fully defined?
  virtual bool is_defined ();

  // Cleanup method.
  virtual void destroy ();

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

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

  static AST_Decl::NodeType const NT;

  /**
   * Get and Set Annotations on the base type
   */
  ///{
  AST_Annotation_Appls &base_type_annotations ();
  void base_type_annotations (const AST_Annotation_Appls &annotations);
  ///}

private:
  // Data.
  AST_Expression *pd_max_size;
  // Maximum sequence size.

  AST_Type *pd_base_type;
  // Sequence base type.

  bool unbounded_;
  // Whether we are bounded or unbounded.

  bool owns_base_type_;
  // If our base type is anonymous array or sequence, we're
  // responsible for destroying it.

  /**
   * Annotations on the base type
   */
  AST_Annotation_Appls base_type_annotations_;
};

#endif           // _AST_SEQUENCE_AST_SEQUENCE_HH