Commit | Line | Data |
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9f40cd87 | 1 | /* Copyright (C) 1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc. |
0f2d19dd JB |
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 | |
0f2d19dd JB |
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. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
1bbd0b84 GB |
41 | |
42 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
43 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
44 | ||
0f2d19dd JB |
45 | \f |
46 | ||
47 | #include <stdio.h> | |
e6e2e95a | 48 | #include <errno.h> |
bd9e24b3 | 49 | |
a0599745 MD |
50 | #include "libguile/_scm.h" |
51 | #include "libguile/pairs.h" | |
52 | #include "libguile/strings.h" | |
53 | #include "libguile/throw.h" | |
20e6290e | 54 | |
a0599745 MD |
55 | #include "libguile/validate.h" |
56 | #include "libguile/error.h" | |
0f2d19dd | 57 | |
bd9e24b3 GH |
58 | #ifdef HAVE_STRING_H |
59 | #include <string.h> | |
60 | #endif | |
95b88819 GH |
61 | #ifdef HAVE_UNISTD_H |
62 | #include <unistd.h> | |
63 | #endif | |
0f2d19dd JB |
64 | \f |
65 | ||
66 | \f | |
67 | /* {Errors and Exceptional Conditions} | |
68 | */ | |
69 | ||
0f2d19dd | 70 | |
c37e0e55 | 71 | /* All errors should pass through here. */ |
7cb1d4d3 | 72 | void |
1bbd0b84 | 73 | scm_error (SCM key, const char *subr, const char *message, SCM args, SCM rest) |
7cb1d4d3 GH |
74 | { |
75 | SCM arg_list; | |
406c7d90 | 76 | if (scm_gc_running_p) |
ef18914a MD |
77 | { |
78 | /* The error occured during GC --- abort */ | |
79 | fprintf (stderr, "Error in %s during GC: %s\n", | |
80 | subr ? subr : "unknown function", | |
81 | message ? message : "<empty message>"); | |
82 | abort (); | |
83 | } | |
e0c08f17 KN |
84 | arg_list = SCM_LIST4 (subr ? scm_makfrom0str (subr) : SCM_BOOL_F, |
85 | message ? scm_makfrom0str (message) : SCM_BOOL_F, | |
86 | args, | |
87 | rest); | |
7cb1d4d3 GH |
88 | scm_ithrow (key, arg_list, 1); |
89 | ||
90 | /* No return, but just in case: */ | |
5c11cc9d GH |
91 | { |
92 | const char msg[] = "guile:scm_error:scm_ithrow returned!\n"; | |
7cb1d4d3 | 93 | |
5c11cc9d GH |
94 | write (2, msg, (sizeof msg) - 1); |
95 | } | |
7cb1d4d3 GH |
96 | exit (1); |
97 | } | |
0f2d19dd | 98 | |
c37e0e55 | 99 | /* Scheme interface to scm_error. */ |
3b3b36dd | 100 | SCM_DEFINE (scm_error_scm, "scm-error", 5, 0, 0, |
1bbd0b84 | 101 | (SCM key, SCM subr, SCM message, SCM args, SCM rest), |
b380b885 MD |
102 | "Raise an error with key @var{key}. @var{subr} can be a string naming\n" |
103 | "the procedure associated with the error, or @code{#f}. @var{message}\n" | |
104 | "is the error message string, possibly containing @code{~S} and @code{~A}\n" | |
105 | "escapes. When an error is reported, these are replaced by formating the\n" | |
106 | "corresponding members of @var{args}: @code{~A} (was @code{%s}) formats using @code{display}\n" | |
872e0c72 | 107 | "and @code{~S} (was @code{%S}) formats using @code{write}. @var{data} is a\n" |
b380b885 MD |
108 | "list or @code{#f} depending on @var{key}: if @var{key} is\n" |
109 | "@code{system-error} then it should be a list\n" | |
110 | "containing the Unix @code{errno} value; If @var{key} is @code{signal} then\n" | |
111 | "it should be a list containing the Unix signal number; otherwise it\n" | |
112 | "will usually be @code{#f}.") | |
1bbd0b84 | 113 | #define FUNC_NAME s_scm_error_scm |
c37e0e55 | 114 | { |
1bbd0b84 GB |
115 | char *szSubr; |
116 | char *szMessage; | |
a6d9e5ab DH |
117 | |
118 | SCM_VALIDATE_SYMBOL (1, key); | |
119 | ||
120 | if (SCM_FALSEP (subr)) | |
121 | { | |
122 | szSubr = NULL; | |
123 | } | |
124 | else if (SCM_SYMBOLP (subr)) | |
125 | { | |
126 | szSubr = SCM_SYMBOL_CHARS (subr); | |
127 | } | |
128 | else | |
129 | { | |
130 | SCM_VALIDATE_STRING (2, subr); | |
131 | SCM_STRING_COERCE_0TERMINATION_X (subr); | |
132 | szSubr = SCM_STRING_CHARS (subr); | |
133 | } | |
134 | ||
135 | if (SCM_FALSEP (message)) | |
136 | { | |
137 | szMessage = NULL; | |
138 | } | |
139 | else | |
140 | { | |
141 | SCM_VALIDATE_STRING (2, message); | |
142 | SCM_STRING_COERCE_0TERMINATION_X (message); | |
143 | szMessage = SCM_STRING_CHARS (message); | |
144 | } | |
89958ad0 | 145 | |
1bbd0b84 | 146 | scm_error (key, szSubr, szMessage, args, rest); |
c37e0e55 GH |
147 | /* not reached. */ |
148 | } | |
1bbd0b84 | 149 | #undef FUNC_NAME |
c37e0e55 | 150 | |
a1ec6916 | 151 | SCM_DEFINE (scm_strerror, "strerror", 1, 0, 0, |
1bbd0b84 | 152 | (SCM err), |
1de052a7 | 153 | "Returns the Unix error message corresponding to @var{err}, an integer.") |
1bbd0b84 | 154 | #define FUNC_NAME s_scm_strerror |
efb997f5 | 155 | { |
3b3b36dd | 156 | SCM_VALIDATE_INUM (1,err); |
efb997f5 GH |
157 | return scm_makfrom0str (strerror (SCM_INUM (err))); |
158 | } | |
1bbd0b84 | 159 | #undef FUNC_NAME |
efb997f5 | 160 | |
523f5266 | 161 | SCM_SYMBOL (scm_system_error_key, "system-error"); |
52859adf | 162 | void |
1bbd0b84 | 163 | scm_syserror (const char *subr) |
52859adf | 164 | { |
1de052a7 GH |
165 | int save_errno = errno; |
166 | ||
01f61221 | 167 | scm_error (scm_system_error_key, |
52859adf | 168 | subr, |
70d63753 | 169 | "~A", |
1de052a7 GH |
170 | scm_cons (scm_makfrom0str (strerror (save_errno)), SCM_EOL), |
171 | scm_cons (SCM_MAKINUM (save_errno), SCM_EOL)); | |
52859adf GH |
172 | } |
173 | ||
174 | void | |
1bbd0b84 | 175 | scm_syserror_msg (const char *subr, const char *message, SCM args, int eno) |
52859adf | 176 | { |
01f61221 | 177 | scm_error (scm_system_error_key, |
52859adf GH |
178 | subr, |
179 | message, | |
180 | args, | |
5c11cc9d | 181 | scm_cons (SCM_MAKINUM (eno), SCM_EOL)); |
52859adf GH |
182 | } |
183 | ||
f5f2dcff DH |
184 | |
185 | #if (SCM_DEBUG_DEPRECATED == 0) | |
186 | ||
f25f761d GH |
187 | /* scm_sysmissing is no longer used in libguile. it can probably be |
188 | removed after a release or two. there's a comment in NEWS about it | |
189 | (2000-01-09). */ | |
52859adf | 190 | void |
1bbd0b84 | 191 | scm_sysmissing (const char *subr) |
52859adf GH |
192 | { |
193 | #ifdef ENOSYS | |
01f61221 | 194 | scm_error (scm_system_error_key, |
52859adf | 195 | subr, |
70d63753 | 196 | "~A", |
5c11cc9d GH |
197 | scm_cons (scm_makfrom0str (strerror (ENOSYS)), SCM_EOL), |
198 | scm_cons (SCM_MAKINUM (ENOSYS), SCM_EOL)); | |
52859adf | 199 | #else |
01f61221 | 200 | scm_error (scm_system_error_key, |
52859adf GH |
201 | subr, |
202 | "Missing function", | |
203 | SCM_BOOL_F, | |
5c11cc9d | 204 | scm_cons (SCM_MAKINUM (0), SCM_EOL)); |
52859adf GH |
205 | #endif |
206 | } | |
207 | ||
f5f2dcff DH |
208 | #endif /* SCM_DEBUG_DEPRECATED == 0 */ |
209 | ||
210 | ||
523f5266 | 211 | SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow"); |
52859adf | 212 | void |
1bbd0b84 | 213 | scm_num_overflow (const char *subr) |
52859adf | 214 | { |
01f61221 | 215 | scm_error (scm_num_overflow_key, |
52859adf GH |
216 | subr, |
217 | "Numerical overflow", | |
218 | SCM_BOOL_F, | |
219 | SCM_BOOL_F); | |
220 | } | |
221 | ||
523f5266 | 222 | SCM_SYMBOL (scm_out_of_range_key, "out-of-range"); |
52859adf | 223 | void |
1bbd0b84 | 224 | scm_out_of_range (const char *subr, SCM bad_value) |
52859adf | 225 | { |
01f61221 | 226 | scm_error (scm_out_of_range_key, |
52859adf | 227 | subr, |
70d63753 | 228 | "Argument out of range: ~S", |
b6791b2e | 229 | SCM_LIST1(bad_value), |
52859adf GH |
230 | SCM_BOOL_F); |
231 | } | |
f5bf2977 | 232 | |
1e76143f GB |
233 | void |
234 | scm_out_of_range_pos (const char *subr, SCM bad_value, SCM pos) | |
235 | { | |
236 | scm_error (scm_out_of_range_key, | |
237 | subr, | |
70d63753 | 238 | "Argument ~S out of range: ~S", |
b6791b2e | 239 | SCM_LIST2(pos,bad_value), |
1e76143f GB |
240 | SCM_BOOL_F); |
241 | } | |
242 | ||
243 | ||
523f5266 | 244 | SCM_SYMBOL (scm_args_number_key, "wrong-number-of-args"); |
0f2d19dd | 245 | void |
1bbd0b84 | 246 | scm_wrong_num_args (SCM proc) |
f5bf2977 | 247 | { |
01f61221 | 248 | scm_error (scm_args_number_key, |
f5bf2977 | 249 | NULL, |
70d63753 | 250 | "Wrong number of arguments to ~A", |
b6791b2e | 251 | SCM_LIST1(proc), |
f5bf2977 GH |
252 | SCM_BOOL_F); |
253 | } | |
254 | ||
9f40cd87 DH |
255 | |
256 | void | |
257 | scm_error_num_args_subr (const char *subr) | |
258 | { | |
259 | scm_error (scm_args_number_key, | |
260 | NULL, | |
261 | "Wrong number of arguments to ~A", | |
262 | SCM_LIST1 (scm_makfrom0str (subr)), | |
263 | SCM_BOOL_F); | |
264 | } | |
265 | ||
266 | ||
523f5266 | 267 | SCM_SYMBOL (scm_arg_type_key, "wrong-type-arg"); |
f5bf2977 | 268 | void |
1bbd0b84 | 269 | scm_wrong_type_arg (const char *subr, int pos, SCM bad_value) |
f5bf2977 | 270 | { |
01f61221 | 271 | scm_error (scm_arg_type_key, |
f5bf2977 | 272 | subr, |
70d63753 GB |
273 | (pos == 0) ? "Wrong type argument: ~S" |
274 | : "Wrong type argument in position ~A: ~S", | |
b6791b2e GB |
275 | (pos == 0) ? SCM_LIST1(bad_value) |
276 | : SCM_LIST2(SCM_MAKINUM(pos), bad_value), | |
f5bf2977 GH |
277 | SCM_BOOL_F); |
278 | } | |
279 | ||
b6791b2e GB |
280 | void |
281 | scm_wrong_type_arg_msg (const char *subr, int pos, SCM bad_value, const char *szMessage) | |
282 | { | |
283 | SCM msg = scm_makfrom0str(szMessage); | |
284 | if (pos == 0) { | |
285 | scm_error (scm_arg_type_key, | |
286 | subr, "Wrong type argument (expecting ~A): ~S", | |
287 | SCM_LIST2(msg,bad_value), | |
288 | SCM_BOOL_F); | |
289 | } else { | |
290 | scm_error (scm_arg_type_key, | |
291 | subr, | |
292 | "Wrong type argument in position ~A (expecting ~A): ~S", | |
293 | SCM_LIST3(SCM_MAKINUM(pos),msg,bad_value), | |
294 | SCM_BOOL_F); | |
295 | } | |
296 | } | |
297 | ||
298 | ||
523f5266 | 299 | SCM_SYMBOL (scm_memory_alloc_key, "memory-allocation-error"); |
f5bf2977 | 300 | void |
1bbd0b84 | 301 | scm_memory_error (const char *subr) |
f5bf2977 | 302 | { |
01f61221 | 303 | scm_error (scm_memory_alloc_key, |
f5bf2977 GH |
304 | subr, |
305 | "Memory allocation error", | |
306 | SCM_BOOL_F, | |
307 | SCM_BOOL_F); | |
308 | } | |
309 | ||
523f5266 GH |
310 | SCM_SYMBOL (scm_misc_error_key, "misc-error"); |
311 | void | |
1bbd0b84 | 312 | scm_misc_error (const char *subr, const char *message, SCM args) |
523f5266 GH |
313 | { |
314 | scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F); | |
315 | } | |
316 | ||
b3fcac34 DH |
317 | #if (SCM_DEBUG_DEPRECATED == 0) |
318 | ||
f5bf2977 | 319 | SCM |
1bbd0b84 | 320 | scm_wta (SCM arg, const char *pos, const char *s_subr) |
f5bf2977 GH |
321 | { |
322 | if (!s_subr || !*s_subr) | |
323 | s_subr = NULL; | |
324 | if ((~0x1fL) & (long) pos) | |
325 | { | |
326 | /* error string supplied. */ | |
26a4f923 | 327 | scm_misc_error (s_subr, pos, SCM_LIST1 (arg)); |
f5bf2977 GH |
328 | } |
329 | else | |
330 | { | |
331 | /* numerical error code. */ | |
332 | int error = (long) pos; | |
333 | ||
334 | switch (error) | |
335 | { | |
336 | case SCM_ARGn: | |
337 | scm_wrong_type_arg (s_subr, 0, arg); | |
338 | case SCM_ARG1: | |
339 | scm_wrong_type_arg (s_subr, 1, arg); | |
340 | case SCM_ARG2: | |
341 | scm_wrong_type_arg (s_subr, 2, arg); | |
342 | case SCM_ARG3: | |
343 | scm_wrong_type_arg (s_subr, 3, arg); | |
344 | case SCM_ARG4: | |
345 | scm_wrong_type_arg (s_subr, 4, arg); | |
346 | case SCM_ARG5: | |
347 | scm_wrong_type_arg (s_subr, 5, arg); | |
3d9352fb MD |
348 | case SCM_ARG6: |
349 | scm_wrong_type_arg (s_subr, 6, arg); | |
350 | case SCM_ARG7: | |
351 | scm_wrong_type_arg (s_subr, 7, arg); | |
f5bf2977 GH |
352 | case SCM_WNA: |
353 | scm_wrong_num_args (arg); | |
b63a956d DH |
354 | case SCM_OUTOFRANGE: |
355 | scm_out_of_range (s_subr, arg); | |
356 | case SCM_NALLOC: | |
357 | scm_memory_error (s_subr); | |
f5bf2977 GH |
358 | default: |
359 | /* this shouldn't happen. */ | |
b1edcd36 | 360 | scm_misc_error (s_subr, "Unknown error", SCM_EOL); |
f5bf2977 GH |
361 | } |
362 | } | |
363 | return SCM_UNSPECIFIED; | |
364 | } | |
365 | ||
b3fcac34 DH |
366 | #endif /* SCM_DEBUG_DEPRECATED == 0 */ |
367 | ||
0f2d19dd JB |
368 | void |
369 | scm_init_error () | |
0f2d19dd | 370 | { |
a0599745 | 371 | #include "libguile/cpp_err_symbols.c" |
8dc9439f | 372 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 373 | #include "libguile/error.x" |
8dc9439f | 374 | #endif |
0f2d19dd JB |
375 | } |
376 | ||
89e00824 ML |
377 | |
378 | /* | |
379 | Local Variables: | |
380 | c-file-style: "gnu" | |
381 | End: | |
382 | */ |