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+// This may look like C, but it's really -*- C++ -*-
+// $Id$
+/*
+
+COPYRIGHT
+
+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
+Definition Language CFE without charge, but you are not authorized to
+license or distribute it to anyone else except as part of a product or
+program developed by you or with the express written consent of Sun
+Microsystems, Inc. ("Sun").
+
+The names of Sun Microsystems, Inc. and any of its subsidiaries or
+affiliates may not be used in advertising or publicity pertaining to
+distribution of Interface Definition Language CFE as permitted herein.
+
+This license is effective until terminated by Sun for failure to comply
+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
+DEALING, USAGE OR TRADE PRACTICE.
+
+INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED WITH NO SUPPORT AND WITHOUT
+ANY OBLIGATION ON THE PART OF Sun OR ANY OF ITS SUBSIDIARIES OR AFFILIATES
+TO ASSIST IN ITS USE, CORRECTION, MODIFICATION OR ENHANCEMENT.
+
+SUN OR ANY OF ITS SUBSIDIARIES OR AFFILIATES SHALL HAVE NO LIABILITY WITH
+RESPECT TO THE INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY
+INTERFACE DEFINITION LANGUAGE CFE OR ANY PART THEREOF.
+
+IN NO EVENT WILL SUN OR ANY OF ITS SUBSIDIARIES OR AFFILIATES BE LIABLE FOR
+ANY LOST REVENUE OR PROFITS OR OTHER SPECIAL, INDIRECT AND CONSEQUENTIAL
+DAMAGES, EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+Use, duplication, or disclosure by the government is subject to
+restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
+Technical Data and Computer Software clause at DFARS 252.227-7013 and FAR
+52.227-19.
+
+Sun, Sun Microsystems and the Sun logo are trademarks or registered
+trademarks of Sun Microsystems, Inc.
+
+SunSoft, Inc.
+2550 Garcia Avenue
+Mountain View, California 94043
+
+NOTE:
+
+SunOS, SunSoft, Sun, Solaris, Sun Microsystems or the Sun logo are
+trademarks or registered trademarks of Sun Microsystems, Inc.
+
+*/
+
+#ifndef _AST_SEQUENCE_AST_SEQUENCE_HH
+#define _AST_SEQUENCE_AST_SEQUENCE_HH
+
+#include "ast_concrete_type.h"
+
+
+class AST_Expression;
+class AST_Type;
+
+// A sequence is a combination of a maximum size and a base type.
+
+class TAO_IDL_FE_Export AST_Sequence : public virtual AST_ConcreteType
+{
+public:
+ AST_Sequence (void);
+
+ AST_Sequence (AST_Expression *max_size,
+ AST_Type *bt,
+ UTL_ScopedName *n,
+ bool local,
+ bool abstract);
+
+ virtual ~AST_Sequence (void);
+
+ 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 (void);
+
+ AST_Type *base_type (void) const;
+
+ virtual bool unbounded (void) 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 (void) const;
+
+ // Is the element type a forward declared struct or union
+ // that hasn't yet been fully defined?
+ virtual bool is_defined (void);
+
+ // Cleanup method.
+ virtual void destroy (void);
+
+ // Narrowing.
+
+ DEF_NARROW_FROM_DECL(AST_Sequence);
+
+ // AST Dumping.
+ virtual void dump (ACE_OSTREAM_TYPE &o);
+
+ // Visiting.
+ virtual int ast_accept (ast_visitor *visitor);
+
+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.
+};
+
+#endif // _AST_SEQUENCE_AST_SEQUENCE_HH