1 /* Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2, or (at your option)
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this software; see the file COPYING. If not, write to
15 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
16 * Boston, MA 02111-1307 USA
18 * As a special exception, the Free Software Foundation gives permission
19 * for additional uses of the text contained in its release of GUILE.
21 * The exception is that, if you link the GUILE library with other files
22 * to produce an executable, this does not by itself cause the
23 * resulting executable to be covered by the GNU General Public License.
24 * Your use of that executable is in no way restricted on account of
25 * linking the GUILE library code into it.
27 * This exception does not however invalidate any other reasons why
28 * the executable file might be covered by the GNU General Public License.
30 * This exception applies only to the code released by the
31 * Free Software Foundation under the name GUILE. If you copy
32 * code from other Free Software Foundation releases into a copy of
33 * GUILE, as the General Public License permits, the exception does
34 * not apply to the code that you add in this way. To avoid misleading
35 * anyone as to the status of such modified files, you must delete
36 * this exception notice from them.
38 * If you write modifications of your own for GUILE, it is your choice
39 * whether to permit this exception to apply to your modifications.
40 * If you do not wish that, delete this exception notice.
42 * The author can be reached at djurfeldt@nada.kth.se
43 * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN */
45 /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
46 gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
60 #include "scm_validate.h"
63 /* {Source Properties}
65 * Properties of source list expressions.
66 * Five of these have special meaning and optimized storage:
68 * filename string The name of the source file.
69 * copy list A copy of the list expression.
70 * line integer The source code line number.
71 * column integer The source code column number.
72 * breakpoint boolean Sets a breakpoint on this form.
74 * Most properties above can be set by the reader.
82 SCM scm_sym_breakpoint
;
84 long scm_tc16_srcprops
;
85 static scm_srcprops_chunk
*srcprops_chunklist
= 0;
86 static scm_srcprops
*srcprops_freelist
= 0;
90 marksrcprops (SCM obj
)
92 scm_gc_mark (SRCPROPFNAME (obj
));
93 scm_gc_mark (SRCPROPCOPY (obj
));
94 return SRCPROPPLIST (obj
);
99 freesrcprops (SCM obj
)
101 *((scm_srcprops
**) SCM_CDR (obj
)) = srcprops_freelist
;
102 srcprops_freelist
= (scm_srcprops
*) SCM_CDR (obj
);
103 return 0; /* srcprops_chunks are not freed until leaving guile */
108 prinsrcprops (SCM obj
,SCM port
,scm_print_state
*pstate
)
110 int writingp
= SCM_WRITINGP (pstate
);
111 scm_puts ("#<srcprops ", port
);
112 SCM_SET_WRITINGP (pstate
, 1);
113 scm_iprin1 (scm_srcprops_to_plist (obj
), port
, pstate
);
114 SCM_SET_WRITINGP (pstate
, writingp
);
115 scm_putc ('>', port
);
121 scm_make_srcprops (int line
, int col
, SCM filename
, SCM copy
, SCM plist
)
123 register scm_srcprops
*ptr
;
125 if ((ptr
= srcprops_freelist
) != NULL
)
126 srcprops_freelist
= *(scm_srcprops
**)ptr
;
130 scm_srcprops_chunk
*mem
;
131 scm_sizet n
= sizeof (scm_srcprops_chunk
)
132 + sizeof (scm_srcprops
) * (SRCPROPS_CHUNKSIZE
- 1);
133 SCM_SYSCALL (mem
= (scm_srcprops_chunk
*) malloc (n
));
134 SCM_ASSERT (mem
, SCM_UNDEFINED
, SCM_NALLOC
, "srcprops");
136 mem
->next
= srcprops_chunklist
;
137 srcprops_chunklist
= mem
;
138 ptr
= &mem
->srcprops
[0];
139 for (i
= 1; i
< SRCPROPS_CHUNKSIZE
- 1; ++i
)
140 *(scm_srcprops
**)&ptr
[i
] = &ptr
[i
+ 1];
141 *(scm_srcprops
**)&ptr
[SRCPROPS_CHUNKSIZE
- 1] = 0;
142 srcprops_freelist
= (scm_srcprops
*) &ptr
[1];
144 ptr
->pos
= SRCPROPMAKPOS (line
, col
);
145 ptr
->fname
= filename
;
148 SCM_RETURN_NEWSMOB (scm_tc16_srcprops
, ptr
);
153 scm_srcprops_to_plist (SCM obj
)
155 SCM plist
= SRCPROPPLIST (obj
);
156 if (!SCM_UNBNDP (SRCPROPCOPY (obj
)))
157 plist
= scm_acons (scm_sym_copy
, SRCPROPCOPY (obj
), plist
);
158 if (!SCM_UNBNDP (SRCPROPFNAME (obj
)))
159 plist
= scm_acons (scm_sym_filename
, SRCPROPFNAME (obj
), plist
);
160 plist
= scm_acons (scm_sym_column
, SCM_MAKINUM (SRCPROPCOL (obj
)), plist
);
161 plist
= scm_acons (scm_sym_line
, SCM_MAKINUM (SRCPROPLINE (obj
)), plist
);
162 plist
= scm_acons (scm_sym_breakpoint
, SRCPROPBRK (obj
), plist
);
166 GUILE_PROC (scm_source_properties
, "source-properties", 1, 0, 0,
169 #define FUNC_NAME s_scm_source_properties
172 SCM_VALIDATE_NIM (1,obj
);
173 if (SCM_MEMOIZEDP (obj
))
174 obj
= SCM_MEMOIZED_EXP (obj
);
176 else if (SCM_NCONSP (obj
))
177 SCM_WRONG_TYPE_ARG (1, obj
);
179 p
= scm_hashq_ref (scm_source_whash
, obj
, (SCM
) NULL
);
180 if (p
!= (SCM
) NULL
&& SRCPROPSP (p
))
181 return scm_srcprops_to_plist (p
);
186 /* Perhaps this procedure should look through an alist
187 and try to make a srcprops-object...? */
188 GUILE_PROC (scm_set_source_properties_x
, "set-source-properties!", 2, 0, 0,
189 (SCM obj
, SCM plist
),
191 #define FUNC_NAME s_scm_set_source_properties_x
194 SCM_VALIDATE_NIM (1,obj
);
195 if (SCM_MEMOIZEDP (obj
))
196 obj
= SCM_MEMOIZED_EXP (obj
);
198 else if (SCM_NCONSP (obj
))
199 SCM_WRONG_TYPE_ARG(1, obj
);
201 handle
= scm_hashq_create_handle_x (scm_source_whash
, obj
, plist
);
202 SCM_SETCDR (handle
, plist
);
207 GUILE_PROC (scm_source_property
, "source-property", 2, 0, 0,
210 #define FUNC_NAME s_scm_source_property
213 SCM_VALIDATE_NIM (1,obj
);
214 if (SCM_MEMOIZEDP (obj
))
215 obj
= SCM_MEMOIZED_EXP (obj
);
217 else if (SCM_NECONSP (obj
))
218 SCM_WRONG_TYPE_ARG (1, obj
);
220 p
= scm_hashq_ref (scm_source_whash
, obj
, SCM_EOL
);
221 if (SCM_IMP (p
) || !SRCPROPSP (p
))
223 if (scm_sym_breakpoint
== key
) p
= SRCPROPBRK (p
);
224 else if (scm_sym_line
== key
) p
= SCM_MAKINUM (SRCPROPLINE (p
));
225 else if (scm_sym_column
== key
) p
= SCM_MAKINUM (SRCPROPCOL (p
));
226 else if (scm_sym_filename
== key
) p
= SRCPROPFNAME (p
);
227 else if (scm_sym_copy
== key
) p
= SRCPROPCOPY (p
);
230 p
= SRCPROPPLIST (p
);
232 p
= scm_assoc (key
, p
);
233 return (SCM_NIMP (p
) ? SCM_CDR (p
) : SCM_BOOL_F
);
235 return SCM_UNBNDP (p
) ? SCM_BOOL_F
: p
;
239 GUILE_PROC (scm_set_source_property_x
, "set-source-property!", 3, 0, 0,
240 (SCM obj
, SCM key
, SCM datum
),
242 #define FUNC_NAME s_scm_set_source_property_x
246 SCM_VALIDATE_NIM (1,obj
);
247 if (SCM_MEMOIZEDP (obj
))
248 obj
= SCM_MEMOIZED_EXP (obj
);
250 else if (SCM_NCONSP (obj
))
251 SCM_WRONG_TYPE_ARG (1, obj
);
253 h
= scm_whash_get_handle (scm_source_whash
, obj
);
254 if (SCM_WHASHFOUNDP (h
))
255 p
= SCM_WHASHREF (scm_source_whash
, h
);
258 h
= scm_whash_create_handle (scm_source_whash
, obj
);
261 if (scm_sym_breakpoint
== key
)
263 if (SCM_FALSEP (datum
))
264 CLEARSRCPROPBRK (SCM_NIMP (p
) && SRCPROPSP (p
)
266 : SCM_WHASHSET (scm_source_whash
, h
,
267 scm_make_srcprops (0,
273 SETSRCPROPBRK (SCM_NIMP (p
) && SRCPROPSP (p
)
275 : SCM_WHASHSET (scm_source_whash
, h
,
276 scm_make_srcprops (0,
282 else if (scm_sym_line
== key
)
284 SCM_VALIDATE_INT(3,datum
);
285 if (SCM_NIMP (p
) && SRCPROPSP (p
))
286 SETSRCPROPLINE (p
, SCM_INUM (datum
));
288 SCM_WHASHSET (scm_source_whash
, h
,
289 scm_make_srcprops (SCM_INUM (datum
), 0,
290 SCM_UNDEFINED
, SCM_UNDEFINED
, p
));
292 else if (scm_sym_column
== key
)
294 SCM_VALIDATE_INT(3,datum
);
295 if (SCM_NIMP (p
) && SRCPROPSP (p
))
296 SETSRCPROPCOL (p
, SCM_INUM (datum
));
298 SCM_WHASHSET (scm_source_whash
, h
,
299 scm_make_srcprops (0, SCM_INUM (datum
),
300 SCM_UNDEFINED
, SCM_UNDEFINED
, p
));
302 else if (scm_sym_filename
== key
)
304 if (SCM_NIMP (p
) && SRCPROPSP (p
))
305 SRCPROPFNAME (p
) = datum
;
307 SCM_WHASHSET (scm_source_whash
, h
, scm_make_srcprops (0, 0, datum
, SCM_UNDEFINED
, p
));
309 else if (scm_sym_filename
== key
)
311 if (SCM_NIMP (p
) && SRCPROPSP (p
))
312 SRCPROPCOPY (p
) = datum
;
314 SCM_WHASHSET (scm_source_whash
, h
, scm_make_srcprops (0, 0, SCM_UNDEFINED
, datum
, p
));
317 SCM_WHASHSET (scm_source_whash
, h
, scm_acons (key
, datum
, p
));
318 return SCM_UNSPECIFIED
;
326 scm_tc16_srcprops
= scm_make_smob_type_mfpe ("srcprops", 0,
327 marksrcprops
, freesrcprops
, prinsrcprops
, NULL
);
328 scm_source_whash
= scm_make_weak_key_hash_table (SCM_MAKINUM (2047));
330 scm_sym_filename
= SCM_CAR (scm_sysintern ("filename", SCM_UNDEFINED
));
331 scm_sym_copy
= SCM_CAR (scm_sysintern ("copy", SCM_UNDEFINED
));
332 scm_sym_line
= SCM_CAR (scm_sysintern ("line", SCM_UNDEFINED
));
333 scm_sym_column
= SCM_CAR (scm_sysintern ("column", SCM_UNDEFINED
));
334 scm_sym_breakpoint
= SCM_CAR (scm_sysintern ("breakpoint", SCM_UNDEFINED
));
336 scm_sysintern ("source-whash", scm_source_whash
);
341 scm_finish_srcprop ()
343 register scm_srcprops_chunk
*ptr
= srcprops_chunklist
, *next
;
348 scm_mallocated
-= sizeof (scm_srcprops_chunk
)
349 + sizeof (scm_srcprops
) * (SRCPROPS_CHUNKSIZE
- 1);