1 /* Copyright (C) 1989, 1992, 1993, 1994, 1996, 1997, 1998, 1999 Aladdin Enterprises. All rights reserved. 2 3 This software is provided AS-IS with no warranty, either express or 4 implied. 5 6 This software is distributed under license and may not be copied, 7 modified or distributed except as expressly authorized under the terms 8 of the license contained in the file LICENSE in this distribution. 9 10 For more information about licensing, please refer to 11 http://www.ghostscript.com/licensing/. For information on 12 commercial licensing, go to http://www.artifex.com/licensing/ or 13 contact Artifex Software, Inc., 101 Lucas Valley Road #110, 14 San Rafael, CA 94903, U.S.A., +1(415)492-9861. 15 */ 16 17 /* $Id: iestack.h,v 1.4 2002/02/21 22:24:53 giles Exp $ */ 18 /* Generic execution stack API */ 19 20 #ifndef iestack_INCLUDED 21 # define iestack_INCLUDED 22 23 #include "iesdata.h" 24 #include "istack.h" 25 26 /* Define pointers into the execution stack. */ 27 typedef s_ptr es_ptr; 28 typedef const_s_ptr const_es_ptr; 29 30 /* Manage the current_file cache. */ 31 #define estack_clear_cache(pes) ((pes)->current_file = 0) 32 #define estack_set_cache(pes,pref) ((pes)->current_file = (pref)) 33 #define estack_check_cache(pes)\ 34 BEGIN\ 35 if (r_has_type_attrs((pes)->stack.p, t_file, a_executable))\ 36 estack_set_cache(pes, (pes)->stack.p);\ 37 END 38 39 #endif /* iestack_INCLUDED */ 40