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216eedfc | 1 | /* Copyright (C) 1995,1996,1997,1998,1999,2000,2001 Free Software Foundation |
575888bd MD |
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 | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
575888bd MD |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
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. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
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. | |
37 | * | |
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. | |
41 | * | |
42 | * The author can be reached at djurfeldt@nada.kth.se | |
82892bed | 43 | * Mikael Djurfeldt, SANS/NADA KTH, 10044 STOCKHOLM, SWEDEN */ |
1bbd0b84 GB |
44 | |
45 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
46 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
47 | ||
575888bd MD |
48 | \f |
49 | ||
e6e2e95a MD |
50 | #include <errno.h> |
51 | ||
a0599745 MD |
52 | #include "libguile/_scm.h" |
53 | #include "libguile/smob.h" | |
54 | #include "libguile/alist.h" | |
55 | #include "libguile/debug.h" | |
56 | #include "libguile/hashtab.h" | |
57 | #include "libguile/hash.h" | |
58 | #include "libguile/ports.h" | |
59 | #include "libguile/root.h" | |
60 | #include "libguile/weaks.h" | |
575888bd | 61 | |
a0599745 MD |
62 | #include "libguile/validate.h" |
63 | #include "libguile/srcprop.h" | |
575888bd MD |
64 | \f |
65 | /* {Source Properties} | |
66 | * | |
67 | * Properties of source list expressions. | |
68 | * Five of these have special meaning and optimized storage: | |
69 | * | |
70 | * filename string The name of the source file. | |
71 | * copy list A copy of the list expression. | |
72 | * line integer The source code line number. | |
73 | * column integer The source code column number. | |
74 | * breakpoint boolean Sets a breakpoint on this form. | |
75 | * | |
76 | * Most properties above can be set by the reader. | |
77 | * | |
78 | */ | |
79 | ||
85db4a2c DH |
80 | SCM_GLOBAL_SYMBOL (scm_sym_filename, "filename"); |
81 | SCM_GLOBAL_SYMBOL (scm_sym_copy, "copy"); | |
82 | SCM_GLOBAL_SYMBOL (scm_sym_line, "line"); | |
83 | SCM_GLOBAL_SYMBOL (scm_sym_column, "column"); | |
84 | SCM_GLOBAL_SYMBOL (scm_sym_breakpoint, "breakpoint"); | |
575888bd | 85 | |
e841c3e0 | 86 | scm_bits_t scm_tc16_srcprops; |
575888bd MD |
87 | static scm_srcprops_chunk *srcprops_chunklist = 0; |
88 | static scm_srcprops *srcprops_freelist = 0; | |
89 | ||
1cc91f1b | 90 | |
575888bd | 91 | static SCM |
e841c3e0 | 92 | srcprops_mark (SCM obj) |
575888bd | 93 | { |
575888bd MD |
94 | scm_gc_mark (SRCPROPFNAME (obj)); |
95 | scm_gc_mark (SRCPROPCOPY (obj)); | |
96 | return SRCPROPPLIST (obj); | |
97 | } | |
98 | ||
1cc91f1b | 99 | |
575888bd | 100 | static scm_sizet |
e841c3e0 | 101 | srcprops_free (SCM obj) |
575888bd | 102 | { |
54778cd3 DH |
103 | *((scm_srcprops **) SCM_CELL_WORD_1 (obj)) = srcprops_freelist; |
104 | srcprops_freelist = (scm_srcprops *) SCM_CELL_WORD_1 (obj); | |
575888bd MD |
105 | return 0; /* srcprops_chunks are not freed until leaving guile */ |
106 | } | |
107 | ||
1cc91f1b | 108 | |
575888bd | 109 | static int |
e841c3e0 | 110 | srcprops_print (SCM obj, SCM port, scm_print_state *pstate) |
575888bd | 111 | { |
19402679 | 112 | int writingp = SCM_WRITINGP (pstate); |
b7f3516f | 113 | scm_puts ("#<srcprops ", port); |
19402679 MD |
114 | SCM_SET_WRITINGP (pstate, 1); |
115 | scm_iprin1 (scm_srcprops_to_plist (obj), port, pstate); | |
116 | SCM_SET_WRITINGP (pstate, writingp); | |
b7f3516f | 117 | scm_putc ('>', port); |
575888bd MD |
118 | return 1; |
119 | } | |
120 | ||
1cc91f1b | 121 | |
575888bd | 122 | SCM |
1bbd0b84 | 123 | scm_make_srcprops (int line, int col, SCM filename, SCM copy, SCM plist) |
575888bd | 124 | { |
575888bd MD |
125 | register scm_srcprops *ptr; |
126 | SCM_DEFER_INTS; | |
127 | if ((ptr = srcprops_freelist) != NULL) | |
128 | srcprops_freelist = *(scm_srcprops **)ptr; | |
129 | else | |
130 | { | |
131 | int i; | |
132 | scm_srcprops_chunk *mem; | |
133 | scm_sizet n = sizeof (scm_srcprops_chunk) | |
134 | + sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1); | |
135 | SCM_SYSCALL (mem = (scm_srcprops_chunk *) malloc (n)); | |
2500356c DH |
136 | if (mem == NULL) |
137 | scm_memory_error ("srcprops"); | |
575888bd MD |
138 | scm_mallocated += n; |
139 | mem->next = srcprops_chunklist; | |
140 | srcprops_chunklist = mem; | |
141 | ptr = &mem->srcprops[0]; | |
142 | for (i = 1; i < SRCPROPS_CHUNKSIZE - 1; ++i) | |
143 | *(scm_srcprops **)&ptr[i] = &ptr[i + 1]; | |
144 | *(scm_srcprops **)&ptr[SRCPROPS_CHUNKSIZE - 1] = 0; | |
145 | srcprops_freelist = (scm_srcprops *) &ptr[1]; | |
146 | } | |
575888bd MD |
147 | ptr->pos = SRCPROPMAKPOS (line, col); |
148 | ptr->fname = filename; | |
149 | ptr->copy = copy; | |
150 | ptr->plist = plist; | |
216eedfc | 151 | SCM_ALLOW_INTS; |
23a62151 | 152 | SCM_RETURN_NEWSMOB (scm_tc16_srcprops, ptr); |
575888bd MD |
153 | } |
154 | ||
1cc91f1b | 155 | |
575888bd | 156 | SCM |
1bbd0b84 | 157 | scm_srcprops_to_plist (SCM obj) |
575888bd MD |
158 | { |
159 | SCM plist = SRCPROPPLIST (obj); | |
160 | if (!SCM_UNBNDP (SRCPROPCOPY (obj))) | |
92e5aa0e | 161 | plist = scm_acons (scm_sym_copy, SRCPROPCOPY (obj), plist); |
575888bd | 162 | if (!SCM_UNBNDP (SRCPROPFNAME (obj))) |
92e5aa0e MD |
163 | plist = scm_acons (scm_sym_filename, SRCPROPFNAME (obj), plist); |
164 | plist = scm_acons (scm_sym_column, SCM_MAKINUM (SRCPROPCOL (obj)), plist); | |
165 | plist = scm_acons (scm_sym_line, SCM_MAKINUM (SRCPROPLINE (obj)), plist); | |
166 | plist = scm_acons (scm_sym_breakpoint, SRCPROPBRK (obj), plist); | |
575888bd MD |
167 | return plist; |
168 | } | |
169 | ||
a1ec6916 | 170 | SCM_DEFINE (scm_source_properties, "source-properties", 1, 0, 0, |
1bbd0b84 | 171 | (SCM obj), |
e3239868 | 172 | "Return the source property association list of @var{obj}.") |
1bbd0b84 | 173 | #define FUNC_NAME s_scm_source_properties |
575888bd MD |
174 | { |
175 | SCM p; | |
6b5a304f | 176 | SCM_VALIDATE_NIM (1,obj); |
575888bd | 177 | if (SCM_MEMOIZEDP (obj)) |
a4645b97 MD |
178 | obj = SCM_MEMOIZED_EXP (obj); |
179 | #ifndef SCM_RECKLESS | |
180 | else if (SCM_NCONSP (obj)) | |
1bbd0b84 | 181 | SCM_WRONG_TYPE_ARG (1, obj); |
a4645b97 | 182 | #endif |
230d095f DH |
183 | p = scm_hashq_ref (scm_source_whash, obj, SCM_BOOL_F); |
184 | if (SRCPROPSP (p)) | |
575888bd MD |
185 | return scm_srcprops_to_plist (p); |
186 | return SCM_EOL; | |
187 | } | |
1bbd0b84 | 188 | #undef FUNC_NAME |
575888bd MD |
189 | |
190 | /* Perhaps this procedure should look through an alist | |
191 | and try to make a srcprops-object...? */ | |
a1ec6916 | 192 | SCM_DEFINE (scm_set_source_properties_x, "set-source-properties!", 2, 0, 0, |
1bbd0b84 | 193 | (SCM obj, SCM plist), |
e3239868 DH |
194 | "Install the association list @var{plist} as the source property\n" |
195 | "list for @var{obj}.") | |
1bbd0b84 | 196 | #define FUNC_NAME s_scm_set_source_properties_x |
575888bd MD |
197 | { |
198 | SCM handle; | |
6b5a304f | 199 | SCM_VALIDATE_NIM (1,obj); |
575888bd | 200 | if (SCM_MEMOIZEDP (obj)) |
a4645b97 MD |
201 | obj = SCM_MEMOIZED_EXP (obj); |
202 | #ifndef SCM_RECKLESS | |
203 | else if (SCM_NCONSP (obj)) | |
1bbd0b84 | 204 | SCM_WRONG_TYPE_ARG(1, obj); |
a4645b97 | 205 | #endif |
575888bd MD |
206 | handle = scm_hashq_create_handle_x (scm_source_whash, obj, plist); |
207 | SCM_SETCDR (handle, plist); | |
208 | return plist; | |
209 | } | |
1bbd0b84 | 210 | #undef FUNC_NAME |
575888bd | 211 | |
a1ec6916 | 212 | SCM_DEFINE (scm_source_property, "source-property", 2, 0, 0, |
1bbd0b84 | 213 | (SCM obj, SCM key), |
e3239868 DH |
214 | "Return the source property specified by @var{key} from\n" |
215 | "@var{obj}'s source property list.") | |
1bbd0b84 | 216 | #define FUNC_NAME s_scm_source_property |
575888bd MD |
217 | { |
218 | SCM p; | |
6b5a304f | 219 | SCM_VALIDATE_NIM (1,obj); |
575888bd | 220 | if (SCM_MEMOIZEDP (obj)) |
a4645b97 MD |
221 | obj = SCM_MEMOIZED_EXP (obj); |
222 | #ifndef SCM_RECKLESS | |
09a56810 | 223 | else if (SCM_NECONSP (obj)) |
1bbd0b84 | 224 | SCM_WRONG_TYPE_ARG (1, obj); |
a4645b97 | 225 | #endif |
575888bd MD |
226 | p = scm_hashq_ref (scm_source_whash, obj, SCM_EOL); |
227 | if (SCM_IMP (p) || !SRCPROPSP (p)) | |
228 | goto plist; | |
54778cd3 DH |
229 | if (SCM_EQ_P (scm_sym_breakpoint, key)) p = SRCPROPBRK (p); |
230 | else if (SCM_EQ_P (scm_sym_line, key)) p = SCM_MAKINUM (SRCPROPLINE (p)); | |
231 | else if (SCM_EQ_P (scm_sym_column, key)) p = SCM_MAKINUM (SRCPROPCOL (p)); | |
232 | else if (SCM_EQ_P (scm_sym_filename, key)) p = SRCPROPFNAME (p); | |
233 | else if (SCM_EQ_P (scm_sym_copy, key)) p = SRCPROPCOPY (p); | |
575888bd MD |
234 | else |
235 | { | |
236 | p = SRCPROPPLIST (p); | |
237 | plist: | |
238 | p = scm_assoc (key, p); | |
239 | return (SCM_NIMP (p) ? SCM_CDR (p) : SCM_BOOL_F); | |
240 | } | |
241 | return SCM_UNBNDP (p) ? SCM_BOOL_F : p; | |
242 | } | |
1bbd0b84 | 243 | #undef FUNC_NAME |
575888bd | 244 | |
a1ec6916 | 245 | SCM_DEFINE (scm_set_source_property_x, "set-source-property!", 3, 0, 0, |
1bbd0b84 | 246 | (SCM obj, SCM key, SCM datum), |
e3239868 DH |
247 | "Set the source property of object @var{obj}, which is specified by\n" |
248 | "@var{key} to @var{datum}. Normally, the key will be a symbol.") | |
1bbd0b84 | 249 | #define FUNC_NAME s_scm_set_source_property_x |
575888bd MD |
250 | { |
251 | scm_whash_handle h; | |
252 | SCM p; | |
6b5a304f | 253 | SCM_VALIDATE_NIM (1,obj); |
575888bd | 254 | if (SCM_MEMOIZEDP (obj)) |
a4645b97 MD |
255 | obj = SCM_MEMOIZED_EXP (obj); |
256 | #ifndef SCM_RECKLESS | |
257 | else if (SCM_NCONSP (obj)) | |
1bbd0b84 | 258 | SCM_WRONG_TYPE_ARG (1, obj); |
a4645b97 | 259 | #endif |
575888bd MD |
260 | h = scm_whash_get_handle (scm_source_whash, obj); |
261 | if (SCM_WHASHFOUNDP (h)) | |
262 | p = SCM_WHASHREF (scm_source_whash, h); | |
263 | else | |
264 | { | |
265 | h = scm_whash_create_handle (scm_source_whash, obj); | |
266 | p = SCM_EOL; | |
267 | } | |
54778cd3 | 268 | if (SCM_EQ_P (scm_sym_breakpoint, key)) |
cda139a7 | 269 | { |
62850ef3 DH |
270 | if (SRCPROPSP (p)) |
271 | { | |
272 | if (SCM_FALSEP (datum)) | |
273 | CLEARSRCPROPBRK (p); | |
274 | else | |
275 | SETSRCPROPBRK (p); | |
276 | } | |
cda139a7 | 277 | else |
62850ef3 DH |
278 | { |
279 | SCM sp = scm_make_srcprops (0, 0, SCM_UNDEFINED, SCM_UNDEFINED, p); | |
280 | SCM_WHASHSET (scm_source_whash, h, sp); | |
281 | if (SCM_FALSEP (datum)) | |
282 | CLEARSRCPROPBRK (sp); | |
283 | else | |
284 | SETSRCPROPBRK (sp); | |
285 | } | |
cda139a7 | 286 | } |
54778cd3 | 287 | else if (SCM_EQ_P (scm_sym_line, key)) |
575888bd | 288 | { |
3b3b36dd | 289 | SCM_VALIDATE_INUM (3,datum); |
0c95b57d | 290 | if (SRCPROPSP (p)) |
a9dbb9fd | 291 | SETSRCPROPLINE (p, SCM_INUM (datum)); |
575888bd MD |
292 | else |
293 | SCM_WHASHSET (scm_source_whash, h, | |
a9dbb9fd MD |
294 | scm_make_srcprops (SCM_INUM (datum), 0, |
295 | SCM_UNDEFINED, SCM_UNDEFINED, p)); | |
575888bd | 296 | } |
54778cd3 | 297 | else if (SCM_EQ_P (scm_sym_column, key)) |
575888bd | 298 | { |
3b3b36dd | 299 | SCM_VALIDATE_INUM (3,datum); |
0c95b57d | 300 | if (SRCPROPSP (p)) |
a9dbb9fd | 301 | SETSRCPROPCOL (p, SCM_INUM (datum)); |
575888bd MD |
302 | else |
303 | SCM_WHASHSET (scm_source_whash, h, | |
a9dbb9fd MD |
304 | scm_make_srcprops (0, SCM_INUM (datum), |
305 | SCM_UNDEFINED, SCM_UNDEFINED, p)); | |
575888bd | 306 | } |
54778cd3 | 307 | else if (SCM_EQ_P (scm_sym_filename, key)) |
575888bd | 308 | { |
0c95b57d | 309 | if (SRCPROPSP (p)) |
575888bd MD |
310 | SRCPROPFNAME (p) = datum; |
311 | else | |
5c5549cb | 312 | SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, datum, SCM_UNDEFINED, p)); |
575888bd | 313 | } |
0419a528 | 314 | else if (SCM_EQ_P (scm_sym_copy, key)) |
575888bd | 315 | { |
0c95b57d | 316 | if (SRCPROPSP (p)) |
575888bd MD |
317 | SRCPROPCOPY (p) = datum; |
318 | else | |
5c5549cb | 319 | SCM_WHASHSET (scm_source_whash, h, scm_make_srcprops (0, 0, SCM_UNDEFINED, datum, p)); |
575888bd MD |
320 | } |
321 | else | |
322 | SCM_WHASHSET (scm_source_whash, h, scm_acons (key, datum, p)); | |
323 | return SCM_UNSPECIFIED; | |
324 | } | |
1bbd0b84 | 325 | #undef FUNC_NAME |
575888bd | 326 | |
1cc91f1b | 327 | |
575888bd MD |
328 | void |
329 | scm_init_srcprop () | |
575888bd | 330 | { |
e841c3e0 KN |
331 | scm_tc16_srcprops = scm_make_smob_type ("srcprops", 0); |
332 | scm_set_smob_mark (scm_tc16_srcprops, srcprops_mark); | |
333 | scm_set_smob_free (scm_tc16_srcprops, srcprops_free); | |
334 | scm_set_smob_print (scm_tc16_srcprops, srcprops_print); | |
335 | ||
5c5549cb | 336 | scm_source_whash = scm_make_weak_key_hash_table (SCM_MAKINUM (2047)); |
86d31dfe | 337 | scm_c_define ("source-whash", scm_source_whash); |
85db4a2c | 338 | |
8dc9439f | 339 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 340 | #include "libguile/srcprop.x" |
8dc9439f | 341 | #endif |
575888bd MD |
342 | } |
343 | ||
344 | void | |
345 | scm_finish_srcprop () | |
346 | { | |
347 | register scm_srcprops_chunk *ptr = srcprops_chunklist, *next; | |
348 | while (ptr) | |
349 | { | |
350 | next = ptr->next; | |
351 | free ((char *) ptr); | |
352 | scm_mallocated -= sizeof (scm_srcprops_chunk) | |
353 | + sizeof (scm_srcprops) * (SRCPROPS_CHUNKSIZE - 1); | |
5c5549cb | 354 | ptr = next; |
575888bd MD |
355 | } |
356 | } | |
89e00824 ML |
357 | |
358 | /* | |
359 | Local Variables: | |
360 | c-file-style: "gnu" | |
361 | End: | |
362 | */ |