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575888bd MD |
1 | /* Copyright (C) 1995,1996 Mikael Djurfeldt |
2 | * | |
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) | |
6 | * any later version. | |
7 | * | |
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. | |
12 | * | |
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, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | * | |
41 | * The author can be reached at djurfeldt@nada.kth.se | |
42 | * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN | |
43 | */ | |
44 | \f | |
45 | ||
46 | #include <stdio.h> | |
47 | #include "_scm.h" | |
20e6290e JB |
48 | #include "smob.h" |
49 | #include "alist.h" | |
50 | #include "debug.h" | |
51 | #include "hashtab.h" | |
5c5549cb | 52 | #include "hash.h" |
20e6290e | 53 | #include "weaks.h" |
575888bd | 54 | |
20e6290e | 55 | #include "srcprop.h" |
575888bd MD |
56 | \f |
57 | /* {Source Properties} | |
58 | * | |
59 | * Properties of source list expressions. | |
60 | * Five of these have special meaning and optimized storage: | |
61 | * | |
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. | |
67 | * | |
68 | * Most properties above can be set by the reader. | |
69 | * | |
70 | */ | |
71 | ||
a4645b97 | 72 | SCM scm_i_filename; |
575888bd | 73 | SCM scm_i_copy; |
a4645b97 MD |
74 | SCM scm_i_line; |
75 | SCM scm_i_column; | |
76 | SCM scm_i_breakpoint; | |
575888bd | 77 | |
5c5549cb | 78 | long scm_tc16_srcprops; |
575888bd MD |
79 | static scm_srcprops_chunk *srcprops_chunklist = 0; |
80 | static scm_srcprops *srcprops_freelist = 0; | |
81 | ||
1cc91f1b JB |
82 | |
83 | static SCM marksrcprops SCM_P ((SCM obj)); | |
84 | ||
575888bd MD |
85 | static SCM |
86 | marksrcprops (obj) | |
87 | SCM obj; | |
575888bd MD |
88 | { |
89 | SCM_SETGC8MARK (obj); | |
90 | scm_gc_mark (SRCPROPFNAME (obj)); | |
91 | scm_gc_mark (SRCPROPCOPY (obj)); | |
92 | return SRCPROPPLIST (obj); | |
93 | } | |
94 | ||
1cc91f1b JB |
95 | |
96 | static scm_sizet freesrcprops SCM_P ((SCM obj)); | |
97 | ||
575888bd MD |
98 | static scm_sizet |
99 | freesrcprops (obj) | |
100 | SCM obj; | |
575888bd MD |
101 | { |
102 | *((scm_srcprops **) SCM_CDR (obj)) = srcprops_freelist; | |
103 | srcprops_freelist = (scm_srcprops *) SCM_CDR (obj); | |
104 | return 0; /* srcprops_chunks are not freed until leaving guile */ | |
105 | } | |
106 | ||
1cc91f1b JB |
107 | |
108 | static int prinsrcprops SCM_P ((SCM obj, SCM port, scm_print_state *pstate)); | |
109 | ||
575888bd | 110 | static int |
19402679 | 111 | prinsrcprops (obj, port, pstate) |
575888bd MD |
112 | SCM obj; |
113 | SCM port; | |
19402679 | 114 | scm_print_state *pstate; |
575888bd | 115 | { |
19402679 | 116 | int writingp = SCM_WRITINGP (pstate); |
575888bd | 117 | scm_gen_puts (scm_regular_string, "#<srcprops ", port); |
19402679 MD |
118 | SCM_SET_WRITINGP (pstate, 1); |
119 | scm_iprin1 (scm_srcprops_to_plist (obj), port, pstate); | |
120 | SCM_SET_WRITINGP (pstate, writingp); | |
575888bd MD |
121 | scm_gen_putc ('>', port); |
122 | return 1; | |
123 | } | |
124 | ||
125 | static scm_smobfuns srcpropssmob = | |
126 | {marksrcprops, freesrcprops, prinsrcprops, 0}; | |
127 | ||
1cc91f1b | 128 | |
575888bd | 129 | SCM |
5c5549cb | 130 | scm_make_srcprops (line, col, filename, copy, plist) |
575888bd MD |
131 | int line; |
132 | int col; | |
133 | SCM filename; | |
134 | SCM copy; | |
135 | SCM plist; | |
575888bd MD |
136 | { |
137 | register SCM ans; | |
138 | register scm_srcprops *ptr; | |
139 | SCM_DEFER_INTS; | |
140 | if ((ptr = srcprops_freelist) != NULL) | |
141 | srcprops_freelist = *(scm_srcprops **)ptr; | |
142 | else | |
143 | { | |
144 | int i; | |
145 | scm_srcprops_chunk *mem; | |
146 | scm_sizet n = sizeof (scm_srcprops_chunk) | |
147 | + sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1); | |
148 | SCM_SYSCALL (mem = (scm_srcprops_chunk *) malloc (n)); | |
149 | SCM_ASSERT (mem, SCM_UNDEFINED, SCM_NALLOC, "srcprops"); | |
150 | scm_mallocated += n; | |
151 | mem->next = srcprops_chunklist; | |
152 | srcprops_chunklist = mem; | |
153 | ptr = &mem->srcprops[0]; | |
154 | for (i = 1; i < SRCPROPS_CHUNKSIZE - 1; ++i) | |
155 | *(scm_srcprops **)&ptr[i] = &ptr[i + 1]; | |
156 | *(scm_srcprops **)&ptr[SRCPROPS_CHUNKSIZE - 1] = 0; | |
157 | srcprops_freelist = (scm_srcprops *) &ptr[1]; | |
158 | } | |
159 | SCM_NEWCELL (ans); | |
a6c64c3c | 160 | SCM_SETCAR (ans, scm_tc16_srcprops); |
575888bd MD |
161 | ptr->pos = SRCPROPMAKPOS (line, col); |
162 | ptr->fname = filename; | |
163 | ptr->copy = copy; | |
164 | ptr->plist = plist; | |
a6c64c3c | 165 | SCM_SETCDR (ans, (SCM) ptr); |
575888bd MD |
166 | SCM_ALLOW_INTS; |
167 | return ans; | |
168 | } | |
169 | ||
1cc91f1b | 170 | |
575888bd MD |
171 | SCM |
172 | scm_srcprops_to_plist (obj) | |
173 | SCM obj; | |
575888bd MD |
174 | { |
175 | SCM plist = SRCPROPPLIST (obj); | |
176 | if (!SCM_UNBNDP (SRCPROPCOPY (obj))) | |
177 | plist = scm_acons (scm_i_copy, SRCPROPCOPY (obj), plist); | |
178 | if (!SCM_UNBNDP (SRCPROPFNAME (obj))) | |
179 | plist = scm_acons (scm_i_filename, SRCPROPFNAME (obj), plist); | |
180 | plist = scm_acons (scm_i_column, SCM_MAKINUM (SRCPROPCOL (obj)), plist); | |
181 | plist = scm_acons (scm_i_line, SCM_MAKINUM (SRCPROPLINE (obj)), plist); | |
182 | plist = scm_acons (scm_i_breakpoint, SRCPROPBRK (obj), plist); | |
183 | return plist; | |
184 | } | |
185 | ||
186 | SCM_PROC (s_source_properties, "source-properties", 1, 0, 0, scm_source_properties); | |
1cc91f1b | 187 | |
575888bd MD |
188 | SCM |
189 | scm_source_properties (obj) | |
190 | SCM obj; | |
575888bd MD |
191 | { |
192 | SCM p; | |
a4645b97 | 193 | SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_source_properties); |
575888bd | 194 | if (SCM_MEMOIZEDP (obj)) |
a4645b97 MD |
195 | obj = SCM_MEMOIZED_EXP (obj); |
196 | #ifndef SCM_RECKLESS | |
197 | else if (SCM_NCONSP (obj)) | |
198 | scm_wrong_type_arg (s_source_properties, 1, obj); | |
199 | #endif | |
575888bd MD |
200 | p = scm_hashq_ref (scm_source_whash, obj, (SCM) NULL); |
201 | if (p != (SCM) NULL && SRCPROPSP (p)) | |
202 | return scm_srcprops_to_plist (p); | |
203 | return SCM_EOL; | |
204 | } | |
205 | ||
206 | /* Perhaps this procedure should look through an alist | |
207 | and try to make a srcprops-object...? */ | |
208 | SCM_PROC (s_set_source_properties_x, "set-source-properties!", 2, 0, 0, scm_set_source_properties_x); | |
1cc91f1b | 209 | |
575888bd MD |
210 | SCM |
211 | scm_set_source_properties_x (obj, plist) | |
212 | SCM obj; | |
213 | SCM plist; | |
575888bd MD |
214 | { |
215 | SCM handle; | |
a4645b97 | 216 | SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_set_source_properties_x); |
575888bd | 217 | if (SCM_MEMOIZEDP (obj)) |
a4645b97 MD |
218 | obj = SCM_MEMOIZED_EXP (obj); |
219 | #ifndef SCM_RECKLESS | |
220 | else if (SCM_NCONSP (obj)) | |
221 | scm_wrong_type_arg (s_set_source_properties_x, 1, obj); | |
222 | #endif | |
575888bd MD |
223 | handle = scm_hashq_create_handle_x (scm_source_whash, obj, plist); |
224 | SCM_SETCDR (handle, plist); | |
225 | return plist; | |
226 | } | |
227 | ||
228 | SCM_PROC (s_source_property, "source-property", 2, 0, 0, scm_source_property); | |
1cc91f1b | 229 | |
575888bd MD |
230 | SCM |
231 | scm_source_property (obj, key) | |
232 | SCM obj; | |
233 | SCM key; | |
575888bd MD |
234 | { |
235 | SCM p; | |
a4645b97 | 236 | SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_source_property); |
575888bd | 237 | if (SCM_MEMOIZEDP (obj)) |
a4645b97 MD |
238 | obj = SCM_MEMOIZED_EXP (obj); |
239 | #ifndef SCM_RECKLESS | |
240 | else if (SCM_NCONSP (obj)) | |
241 | scm_wrong_type_arg (s_source_property, 1, obj); | |
242 | #endif | |
575888bd MD |
243 | p = scm_hashq_ref (scm_source_whash, obj, SCM_EOL); |
244 | if (SCM_IMP (p) || !SRCPROPSP (p)) | |
245 | goto plist; | |
246 | if (scm_i_breakpoint == key) p = SRCPROPBRK (p); | |
247 | else if (scm_i_line == key) p = SCM_MAKINUM (SRCPROPLINE (p)); | |
248 | else if (scm_i_column == key) p = SCM_MAKINUM (SRCPROPCOL (p)); | |
249 | else if (scm_i_filename == key) p = SRCPROPFNAME (p); | |
250 | else if (scm_i_copy == key) p = SRCPROPCOPY (p); | |
251 | else | |
252 | { | |
253 | p = SRCPROPPLIST (p); | |
254 | plist: | |
255 | p = scm_assoc (key, p); | |
256 | return (SCM_NIMP (p) ? SCM_CDR (p) : SCM_BOOL_F); | |
257 | } | |
258 | return SCM_UNBNDP (p) ? SCM_BOOL_F : p; | |
259 | } | |
260 | ||
261 | SCM_PROC (s_set_source_property_x, "set-source-property!", 3, 0, 0, scm_set_source_property_x); | |
1cc91f1b | 262 | |
575888bd MD |
263 | SCM |
264 | scm_set_source_property_x (obj, key, datum) | |
265 | SCM obj; | |
266 | SCM key; | |
267 | SCM datum; | |
575888bd MD |
268 | { |
269 | scm_whash_handle h; | |
270 | SCM p; | |
a4645b97 | 271 | SCM_ASSERT (SCM_NIMP (obj), obj, SCM_ARG1, s_set_source_property_x); |
575888bd | 272 | if (SCM_MEMOIZEDP (obj)) |
a4645b97 MD |
273 | obj = SCM_MEMOIZED_EXP (obj); |
274 | #ifndef SCM_RECKLESS | |
275 | else if (SCM_NCONSP (obj)) | |
276 | scm_wrong_type_arg (s_set_source_property_x, 1, obj); | |
277 | #endif | |
575888bd MD |
278 | h = scm_whash_get_handle (scm_source_whash, obj); |
279 | if (SCM_WHASHFOUNDP (h)) | |
280 | p = SCM_WHASHREF (scm_source_whash, h); | |
281 | else | |
282 | { | |
283 | h = scm_whash_create_handle (scm_source_whash, obj); | |
284 | p = SCM_EOL; | |
285 | } | |
286 | if (scm_i_breakpoint == key) | |
287 | if (SCM_FALSEP (datum)) | |
288 | CLEARSRCPROPBRK (SCM_NIMP (p) && SRCPROPSP (p) | |
289 | ? p | |
290 | : SCM_WHASHSET (scm_source_whash, h, | |
5c5549cb | 291 | scm_make_srcprops (0, 0, SCM_UNDEFINED, |
575888bd MD |
292 | SCM_UNDEFINED, p))); |
293 | else | |
294 | SETSRCPROPBRK (SCM_NIMP (p) && SRCPROPSP (p) | |
295 | ? p | |
296 | : SCM_WHASHSET (scm_source_whash, h, | |
5c5549cb | 297 | scm_make_srcprops (0, 0, SCM_UNDEFINED, |
575888bd MD |
298 | SCM_UNDEFINED, p))); |
299 | else if (scm_i_line == key) | |
300 | { | |
301 | if (SCM_NIMP (p) && SRCPROPSP (p)) | |
302 | SETSRCPROPLINE (p, datum); | |
303 | else | |
304 | SCM_WHASHSET (scm_source_whash, h, | |
5c5549cb | 305 | scm_make_srcprops (datum, 0, SCM_UNDEFINED, SCM_UNDEFINED, p)); |
575888bd MD |
306 | } |
307 | else if (scm_i_column == key) | |
308 | { | |
309 | if (SCM_NIMP (p) && SRCPROPSP (p)) | |
310 | SETSRCPROPCOL (p, datum); | |
311 | else | |
312 | SCM_WHASHSET (scm_source_whash, h, | |
5c5549cb | 313 | scm_make_srcprops (0, datum, SCM_UNDEFINED, SCM_UNDEFINED, p)); |
575888bd MD |
314 | } |
315 | else if (scm_i_filename == key) | |
316 | { | |
317 | if (SCM_NIMP (p) && SRCPROPSP (p)) | |
318 | SRCPROPFNAME (p) = datum; | |
319 | else | |
5c5549cb | 320 | SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, datum, SCM_UNDEFINED, p)); |
575888bd MD |
321 | } |
322 | else if (scm_i_filename == key) | |
323 | { | |
324 | if (SCM_NIMP (p) && SRCPROPSP (p)) | |
325 | SRCPROPCOPY (p) = datum; | |
326 | else | |
5c5549cb | 327 | SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, SCM_UNDEFINED, datum, p)); |
575888bd MD |
328 | } |
329 | else | |
330 | SCM_WHASHSET (scm_source_whash, h, scm_acons (key, datum, p)); | |
331 | return SCM_UNSPECIFIED; | |
332 | } | |
333 | ||
1cc91f1b | 334 | |
575888bd MD |
335 | void |
336 | scm_init_srcprop () | |
575888bd | 337 | { |
5c5549cb MD |
338 | scm_tc16_srcprops = scm_newsmob (&srcpropssmob); |
339 | scm_source_whash = scm_make_weak_key_hash_table (SCM_MAKINUM (2047)); | |
575888bd MD |
340 | |
341 | scm_i_filename = SCM_CAR (scm_sysintern ("filename", SCM_UNDEFINED)); | |
342 | scm_i_copy = SCM_CAR (scm_sysintern ("copy", SCM_UNDEFINED)); | |
343 | scm_i_line = SCM_CAR (scm_sysintern ("line", SCM_UNDEFINED)); | |
344 | scm_i_column = SCM_CAR (scm_sysintern ("column", SCM_UNDEFINED)); | |
345 | scm_i_breakpoint = SCM_CAR (scm_sysintern ("breakpoint", SCM_UNDEFINED)); | |
346 | ||
347 | scm_sysintern ("source-whash", scm_source_whash); | |
348 | #include "srcprop.x" | |
349 | } | |
350 | ||
351 | void | |
352 | scm_finish_srcprop () | |
353 | { | |
354 | register scm_srcprops_chunk *ptr = srcprops_chunklist, *next; | |
355 | while (ptr) | |
356 | { | |
357 | next = ptr->next; | |
358 | free ((char *) ptr); | |
359 | scm_mallocated -= sizeof (scm_srcprops_chunk) | |
360 | + sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1); | |
5c5549cb | 361 | ptr = next; |
575888bd MD |
362 | } |
363 | } |