1 /* Copyright (C) 1995,1996,1997,1998 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 */
57 /* {Source Properties}
59 * Properties of source list expressions.
60 * Five of these have special meaning and optimized storage:
62 * filename string The name of the source file.
63 * copy list A copy of the list expression.
64 * line integer The source code line number.
65 * column integer The source code column number.
66 * breakpoint boolean Sets a breakpoint on this form.
68 * Most properties above can be set by the reader.
78 long scm_tc16_srcprops
;
79 static scm_srcprops_chunk
*srcprops_chunklist
= 0;
80 static scm_srcprops
*srcprops_freelist
= 0;
83 static SCM marksrcprops
SCM_P ((SCM obj
));
89 scm_gc_mark (SRCPROPFNAME (obj
));
90 scm_gc_mark (SRCPROPCOPY (obj
));
91 return SRCPROPPLIST (obj
);
95 static scm_sizet freesrcprops
SCM_P ((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 */
107 static int prinsrcprops
SCM_P ((SCM obj
, SCM port
, scm_print_state
*pstate
));
110 prinsrcprops (obj
, port
, pstate
)
113 scm_print_state
*pstate
;
115 int writingp
= SCM_WRITINGP (pstate
);
116 scm_puts ("#<srcprops ", port
);
117 SCM_SET_WRITINGP (pstate
, 1);
118 scm_iprin1 (scm_srcprops_to_plist (obj
), port
, pstate
);
119 SCM_SET_WRITINGP (pstate
, writingp
);
120 scm_putc ('>', port
);
124 static scm_smobfuns srcpropssmob
=
125 {marksrcprops
, freesrcprops
, prinsrcprops
, 0};
129 scm_make_srcprops (line
, col
, filename
, copy
, plist
)
137 register scm_srcprops
*ptr
;
139 if ((ptr
= srcprops_freelist
) != NULL
)
140 srcprops_freelist
= *(scm_srcprops
**)ptr
;
144 scm_srcprops_chunk
*mem
;
145 scm_sizet n
= sizeof (scm_srcprops_chunk
)
146 + sizeof (scm_srcprops
) * (SRCPROPS_CHUNKSIZE
- 1);
147 SCM_SYSCALL (mem
= (scm_srcprops_chunk
*) malloc (n
));
148 SCM_ASSERT (mem
, SCM_UNDEFINED
, SCM_NALLOC
, "srcprops");
150 mem
->next
= srcprops_chunklist
;
151 srcprops_chunklist
= mem
;
152 ptr
= &mem
->srcprops
[0];
153 for (i
= 1; i
< SRCPROPS_CHUNKSIZE
- 1; ++i
)
154 *(scm_srcprops
**)&ptr
[i
] = &ptr
[i
+ 1];
155 *(scm_srcprops
**)&ptr
[SRCPROPS_CHUNKSIZE
- 1] = 0;
156 srcprops_freelist
= (scm_srcprops
*) &ptr
[1];
159 SCM_SETCAR (ans
, scm_tc16_srcprops
);
160 ptr
->pos
= SRCPROPMAKPOS (line
, col
);
161 ptr
->fname
= filename
;
164 SCM_SETCDR (ans
, (SCM
) ptr
);
171 scm_srcprops_to_plist (obj
)
174 SCM plist
= SRCPROPPLIST (obj
);
175 if (!SCM_UNBNDP (SRCPROPCOPY (obj
)))
176 plist
= scm_acons (scm_i_copy
, SRCPROPCOPY (obj
), plist
);
177 if (!SCM_UNBNDP (SRCPROPFNAME (obj
)))
178 plist
= scm_acons (scm_i_filename
, SRCPROPFNAME (obj
), plist
);
179 plist
= scm_acons (scm_i_column
, SCM_MAKINUM (SRCPROPCOL (obj
)), plist
);
180 plist
= scm_acons (scm_i_line
, SCM_MAKINUM (SRCPROPLINE (obj
)), plist
);
181 plist
= scm_acons (scm_i_breakpoint
, SRCPROPBRK (obj
), plist
);
185 SCM_PROC (s_source_properties
, "source-properties", 1, 0, 0, scm_source_properties
);
188 scm_source_properties (obj
)
192 SCM_ASSERT (SCM_NIMP (obj
), obj
, SCM_ARG1
, s_source_properties
);
193 if (SCM_MEMOIZEDP (obj
))
194 obj
= SCM_MEMOIZED_EXP (obj
);
196 else if (SCM_NCONSP (obj
))
197 scm_wrong_type_arg (s_source_properties
, 1, obj
);
199 p
= scm_hashq_ref (scm_source_whash
, obj
, (SCM
) NULL
);
200 if (p
!= (SCM
) NULL
&& SRCPROPSP (p
))
201 return scm_srcprops_to_plist (p
);
205 /* Perhaps this procedure should look through an alist
206 and try to make a srcprops-object...? */
207 SCM_PROC (s_set_source_properties_x
, "set-source-properties!", 2, 0, 0, scm_set_source_properties_x
);
210 scm_set_source_properties_x (obj
, plist
)
215 SCM_ASSERT (SCM_NIMP (obj
), obj
, SCM_ARG1
, s_set_source_properties_x
);
216 if (SCM_MEMOIZEDP (obj
))
217 obj
= SCM_MEMOIZED_EXP (obj
);
219 else if (SCM_NCONSP (obj
))
220 scm_wrong_type_arg (s_set_source_properties_x
, 1, obj
);
222 handle
= scm_hashq_create_handle_x (scm_source_whash
, obj
, plist
);
223 SCM_SETCDR (handle
, plist
);
227 SCM_PROC (s_source_property
, "source-property", 2, 0, 0, scm_source_property
);
230 scm_source_property (obj
, key
)
235 SCM_ASSERT (SCM_NIMP (obj
), obj
, SCM_ARG1
, s_source_property
);
236 if (SCM_MEMOIZEDP (obj
))
237 obj
= SCM_MEMOIZED_EXP (obj
);
239 else if (SCM_NCONSP (obj
))
240 scm_wrong_type_arg (s_source_property
, 1, obj
);
242 p
= scm_hashq_ref (scm_source_whash
, obj
, SCM_EOL
);
243 if (SCM_IMP (p
) || !SRCPROPSP (p
))
245 if (scm_i_breakpoint
== key
) p
= SRCPROPBRK (p
);
246 else if (scm_i_line
== key
) p
= SCM_MAKINUM (SRCPROPLINE (p
));
247 else if (scm_i_column
== key
) p
= SCM_MAKINUM (SRCPROPCOL (p
));
248 else if (scm_i_filename
== key
) p
= SRCPROPFNAME (p
);
249 else if (scm_i_copy
== key
) p
= SRCPROPCOPY (p
);
252 p
= SRCPROPPLIST (p
);
254 p
= scm_assoc (key
, p
);
255 return (SCM_NIMP (p
) ? SCM_CDR (p
) : SCM_BOOL_F
);
257 return SCM_UNBNDP (p
) ? SCM_BOOL_F
: p
;
260 SCM_PROC (s_set_source_property_x
, "set-source-property!", 3, 0, 0, scm_set_source_property_x
);
263 scm_set_source_property_x (obj
, key
, datum
)
270 SCM_ASSERT (SCM_NIMP (obj
), obj
, SCM_ARG1
, s_set_source_property_x
);
271 if (SCM_MEMOIZEDP (obj
))
272 obj
= SCM_MEMOIZED_EXP (obj
);
274 else if (SCM_NCONSP (obj
))
275 scm_wrong_type_arg (s_set_source_property_x
, 1, obj
);
277 h
= scm_whash_get_handle (scm_source_whash
, obj
);
278 if (SCM_WHASHFOUNDP (h
))
279 p
= SCM_WHASHREF (scm_source_whash
, h
);
282 h
= scm_whash_create_handle (scm_source_whash
, obj
);
285 if (scm_i_breakpoint
== key
)
287 if (SCM_FALSEP (datum
))
288 CLEARSRCPROPBRK (SCM_NIMP (p
) && SRCPROPSP (p
)
290 : SCM_WHASHSET (scm_source_whash
, h
,
291 scm_make_srcprops (0,
297 SETSRCPROPBRK (SCM_NIMP (p
) && SRCPROPSP (p
)
299 : SCM_WHASHSET (scm_source_whash
, h
,
300 scm_make_srcprops (0,
306 else if (scm_i_line
== key
)
308 if (SCM_NIMP (p
) && SRCPROPSP (p
))
309 SETSRCPROPLINE (p
, datum
);
311 SCM_WHASHSET (scm_source_whash
, h
,
312 scm_make_srcprops (datum
, 0, SCM_UNDEFINED
, SCM_UNDEFINED
, p
));
314 else if (scm_i_column
== key
)
316 if (SCM_NIMP (p
) && SRCPROPSP (p
))
317 SETSRCPROPCOL (p
, datum
);
319 SCM_WHASHSET (scm_source_whash
, h
,
320 scm_make_srcprops (0, datum
, SCM_UNDEFINED
, SCM_UNDEFINED
, p
));
322 else if (scm_i_filename
== key
)
324 if (SCM_NIMP (p
) && SRCPROPSP (p
))
325 SRCPROPFNAME (p
) = datum
;
327 SCM_WHASHSET (scm_source_whash
, h
, scm_make_srcprops (0, 0, datum
, SCM_UNDEFINED
, p
));
329 else if (scm_i_filename
== key
)
331 if (SCM_NIMP (p
) && SRCPROPSP (p
))
332 SRCPROPCOPY (p
) = datum
;
334 SCM_WHASHSET (scm_source_whash
, h
, scm_make_srcprops (0, 0, SCM_UNDEFINED
, datum
, p
));
337 SCM_WHASHSET (scm_source_whash
, h
, scm_acons (key
, datum
, p
));
338 return SCM_UNSPECIFIED
;
345 scm_tc16_srcprops
= scm_newsmob (&srcpropssmob
);
346 scm_source_whash
= scm_make_weak_key_hash_table (SCM_MAKINUM (2047));
348 scm_i_filename
= SCM_CAR (scm_sysintern ("filename", SCM_UNDEFINED
));
349 scm_i_copy
= SCM_CAR (scm_sysintern ("copy", SCM_UNDEFINED
));
350 scm_i_line
= SCM_CAR (scm_sysintern ("line", SCM_UNDEFINED
));
351 scm_i_column
= SCM_CAR (scm_sysintern ("column", SCM_UNDEFINED
));
352 scm_i_breakpoint
= SCM_CAR (scm_sysintern ("breakpoint", SCM_UNDEFINED
));
354 scm_sysintern ("source-whash", scm_source_whash
);
359 scm_finish_srcprop ()
361 register scm_srcprops_chunk
*ptr
= srcprops_chunklist
, *next
;
366 scm_mallocated
-= sizeof (scm_srcprops_chunk
)
367 + sizeof (scm_srcprops
) * (SRCPROPS_CHUNKSIZE
- 1);