libguile/srcprop.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_SRCPROP_H
   4 #define SCM_SRCPROP_H
   5
   6 /* Copyright (C) 1995,1996,2000,2001 Free Software Foundation, Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this software; see the file COPYING.  If not, write to
  20  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  21  * Boston, MA 02111-1307 USA
  22  *
  23  * As a special exception, the Free Software Foundation gives permission
  24  * for additional uses of the text contained in its release of GUILE.
  25  *
  26  * The exception is that, if you link the GUILE library with other files
  27  * to produce an executable, this does not by itself cause the
  28  * resulting executable to be covered by the GNU General Public License.
  29  * Your use of that executable is in no way restricted on account of
  30  * linking the GUILE library code into it.
  31  *
  32  * This exception does not however invalidate any other reasons why
  33  * the executable file might be covered by the GNU General Public License.
  34  *
  35  * This exception applies only to the code released by the
  36  * Free Software Foundation under the name GUILE.  If you copy
  37  * code from other Free Software Foundation releases into a copy of
  38  * GUILE, as the General Public License permits, the exception does
  39  * not apply to the code that you add in this way.  To avoid misleading
  40  * anyone as to the status of such modified files, you must delete
  41  * this exception notice from them.
  42  *
  43  * If you write modifications of your own for GUILE, it is your choice
  44  * whether to permit this exception to apply to your modifications.
  45  * If you do not wish that, delete this exception notice.
  46  *
  47  * The author can be reached at djurfeldt@nada.kth.se
  48  * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN */
  49
  50 \f
  51
  52 #include "libguile/__scm.h"
  53
  54 \f
  55
  56 /* {The old whash table interface}
  57  * *fixme* This is a temporary solution until weak hash table access
  58  * has been optimized for speed (which is quite necessary, if they are
  59  * used for recording of source code positions...)
  60  */
  61
  62 #define scm_whash_handle SCM
  63
  64 #define scm_whash_get_handle(whash, key) scm_hash_fn_get_handle (whash, key, scm_ihashq, scm_sloppy_assq, 0)
  65 #define SCM_WHASHFOUNDP(h) (!SCM_FALSEP (h))
  66 #define SCM_WHASHREF(whash, handle) SCM_CDR (handle)
  67 #define SCM_WHASHSET(whash, handle, obj) SCM_SETCDR (handle, obj)
  68 #define scm_whash_create_handle(whash, key) scm_hash_fn_create_handle_x (whash, key, SCM_UNSPECIFIED, scm_ihashq, scm_sloppy_assq, 0)
  69 #define scm_whash_lookup(whash, obj) scm_hash_fn_ref (whash, obj, SCM_BOOL_F, scm_ihashq, scm_sloppy_assq, 0)
  70 #define scm_whash_insert(whash, key, obj) \
  71 do { \
  72   register SCM w = (whash); \
  73   SCM_WHASHSET (w, scm_whash_create_handle (w, key), obj); \
  74 } while (0)
  75
  76
  77 /* {Source properties}
  78  */
  79
  80 SCM_API scm_t_bits scm_tc16_srcprops;
  81
  82 typedef struct scm_t_srcprops
  83 {
  84   unsigned long pos;
  85   SCM fname;
  86   SCM copy;
  87   SCM plist;
  88 } scm_t_srcprops;
  89
  90 #define SRCPROPS_CHUNKSIZE 2047 /* Number of srcprops per chunk */
  91 typedef struct scm_t_srcprops_chunk
  92 {
  93   struct scm_t_srcprops_chunk *next;
  94   scm_t_srcprops srcprops[1];
  95 } scm_t_srcprops_chunk;
  96
  97 #define SCM_SOURCE_PROPERTY_FLAG_BREAK (1L << 16)
  98
  99 #define SRCPROPSP(p) (SCM_TYP16_PREDICATE (scm_tc16_srcprops, p))
 100 #define SRCPROPBRK(p) \
 101   (SCM_BOOL (SCM_CELL_WORD_0 (p) & SCM_SOURCE_PROPERTY_FLAG_BREAK))
 102 #define SRCPROPPOS(p) ((scm_t_srcprops *) SCM_CELL_WORD_1 (p))->pos
 103 #define SRCPROPLINE(p) (SRCPROPPOS(p) >> 12)
 104 #define SRCPROPCOL(p) (SRCPROPPOS(p) & 0x0fffL)
 105 #define SRCPROPFNAME(p) ((scm_t_srcprops *) SCM_CELL_WORD_1 (p))->fname
 106 #define SRCPROPCOPY(p) ((scm_t_srcprops *) SCM_CELL_WORD_1 (p))->copy
 107 #define SRCPROPPLIST(p) ((scm_t_srcprops *) SCM_CELL_WORD_1 (p))->plist
 108 #define SETSRCPROPBRK(p) \
 109   (SCM_SET_CELL_WORD_0 ((p), SCM_CELL_WORD_0 (p) \
 110                              | SCM_SOURCE_PROPERTY_FLAG_BREAK))
 111 #define CLEARSRCPROPBRK(p)  \
 112   (SCM_SET_CELL_WORD_0 ((p), SCM_CELL_WORD_0 (p) \
 113                              & ~SCM_SOURCE_PROPERTY_FLAG_BREAK))
 114 #define SRCPROPMAKPOS(l,c) (((l) << 12) + (c))
 115 #define SETSRCPROPPOS(p,l,c) (SRCPROPPOS (p) = SRCPROPMAKPOS (l, c))
 116 #define SETSRCPROPLINE(p,l) SETSRCPROPPOS (p, l, SRCPROPCOL (p))
 117 #define SETSRCPROPCOL(p,c) SETSRCPROPPOS (p, SRCPROPLINE (p), c)
 118
 119 #define SRCBRKP(x) (!SCM_IMP (t.arg1 = scm_whash_lookup (scm_source_whash, (x)))\
 120                     && SRCPROPSP (t.arg1)\
 121                     && (SCM_CELL_WORD_0 (t.arg1) & (1L << 16)))
 122
 123 #define PROCTRACEP(x) (!SCM_FALSEP (scm_procedure_property (x, scm_sym_trace)))
 124
 125 SCM_API SCM scm_sym_filename;
 126 SCM_API SCM scm_sym_copy;
 127 SCM_API SCM scm_sym_line;
 128 SCM_API SCM scm_sym_column;
 129 SCM_API SCM scm_sym_breakpoint;
 130
 131 \f
 132
 133
 134 SCM_API SCM scm_srcprops_to_plist (SCM obj);
 135 SCM_API SCM scm_make_srcprops (long line, int col, SCM fname, SCM copy, SCM plist);
 136 SCM_API SCM scm_source_property (SCM obj, SCM key);
 137 SCM_API SCM scm_set_source_property_x (SCM obj, SCM key, SCM datum);
 138 SCM_API SCM scm_source_properties (SCM obj);
 139 SCM_API SCM scm_set_source_properties_x (SCM obj, SCM props);
 140 SCM_API void scm_finish_srcprop (void);
 141 SCM_API void scm_init_srcprop (void);
 142
 143 #endif  /* SCM_SRCPROP_H */
 144
 145 /*
 146   Local Variables:
 147   c-file-style: "gnu"
 148   End:
 149 */