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Diffstat (limited to 'ACE/TAO/TAO_IDL/include/utl_stack.h')
-rw-r--r-- | ACE/TAO/TAO_IDL/include/utl_stack.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/ACE/TAO/TAO_IDL/include/utl_stack.h b/ACE/TAO/TAO_IDL/include/utl_stack.h new file mode 100644 index 00000000000..e7084338265 --- /dev/null +++ b/ACE/TAO/TAO_IDL/include/utl_stack.h @@ -0,0 +1,146 @@ +// $Id$ + +/* + +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 _UTL_STACK_UTL_STACK_HH +#define _UTL_STACK_UTL_STACK_HH + +#include "TAO_IDL_FE_Export.h" + +class UTL_Scope; + +// UTL_ScopeStack implements scope nesting. + +// Forward declaration of active iterator for UTL_ScopeStack. +class UTL_ScopeStackActiveIterator; + +class TAO_IDL_FE_Export UTL_ScopeStack +{ +public: + UTL_ScopeStack (void); + ~UTL_ScopeStack (void); + + // Return top element. + UTL_Scope *top (void); + + // Pop top element. + void pop (void); + + // Clear entire stack. + void clear (void); + + // Push an element on the stack and return stack. + UTL_ScopeStack *push (UTL_Scope *el); + + // How deep is the stack now? + unsigned long depth (void); + + // Return bottom element. + UTL_Scope *bottom (void); + + // Return (top - 1) element. + UTL_Scope *next_to_top (void); + + // return topmost non-NULL element. + UTL_Scope *top_non_null (void); + +private: + // Store scopes stack + UTL_Scope **pd_stack_data; + + // How many allocated? + unsigned long pd_stack_data_nalloced; + + // How many used? + unsigned long pd_stack_top; + + // Friend active iterator class for UTL_ScopeStack. + friend class UTL_ScopeStackActiveIterator; +}; + +// Active iterator for UTL_ScopeStack. +class TAO_IDL_FE_Export UTL_ScopeStackActiveIterator +{ +public: + UTL_ScopeStackActiveIterator (UTL_ScopeStack &s); + + // Advance to next element. + void next (void); + + // Get current item. + UTL_Scope*item (void); + + // Is the iteration finished? + long is_done (void); + +private: + // On what to iterate? + UTL_ScopeStack &source; + + // Where are we in iteration? + long il; +}; + +#endif // _UTL_STACK_UTL_STACK_HH |