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 | |
7beabedb MG |
64 | |
65 | /* For Windows... */ | |
66 | #ifdef HAVE_IO_H | |
67 | #include <io.h> | |
68 | #endif | |
0f2d19dd JB |
69 | \f |
70 | ||
71 | \f | |
72 | /* {Errors and Exceptional Conditions} | |
73 | */ | |
74 | ||
0f2d19dd | 75 | |
c37e0e55 | 76 | /* All errors should pass through here. */ |
7cb1d4d3 | 77 | void |
1bbd0b84 | 78 | scm_error (SCM key, const char *subr, const char *message, SCM args, SCM rest) |
7cb1d4d3 GH |
79 | { |
80 | SCM arg_list; | |
406c7d90 | 81 | if (scm_gc_running_p) |
ef18914a MD |
82 | { |
83 | /* The error occured during GC --- abort */ | |
84 | fprintf (stderr, "Error in %s during GC: %s\n", | |
85 | subr ? subr : "unknown function", | |
86 | message ? message : "<empty message>"); | |
87 | abort (); | |
88 | } | |
1afff620 KN |
89 | arg_list = scm_list_4 (subr ? scm_makfrom0str (subr) : SCM_BOOL_F, |
90 | message ? scm_makfrom0str (message) : SCM_BOOL_F, | |
91 | args, | |
92 | rest); | |
7cb1d4d3 GH |
93 | scm_ithrow (key, arg_list, 1); |
94 | ||
95 | /* No return, but just in case: */ | |
5c11cc9d GH |
96 | { |
97 | const char msg[] = "guile:scm_error:scm_ithrow returned!\n"; | |
7cb1d4d3 | 98 | |
5c11cc9d GH |
99 | write (2, msg, (sizeof msg) - 1); |
100 | } | |
7cb1d4d3 GH |
101 | exit (1); |
102 | } | |
0f2d19dd | 103 | |
c37e0e55 | 104 | /* Scheme interface to scm_error. */ |
3b3b36dd | 105 | SCM_DEFINE (scm_error_scm, "scm-error", 5, 0, 0, |
1e6808ea MG |
106 | (SCM key, SCM subr, SCM message, SCM args, SCM data), |
107 | "Raise an error with key @var{key}. @var{subr} can be a string\n" | |
108 | "naming the procedure associated with the error, or @code{#f}.\n" | |
109 | "@var{message} is the error message string, possibly containing\n" | |
110 | "@code{~S} and @code{~A} escapes. When an error is reported,\n" | |
111 | "these are replaced by formatting the corresponding members of\n" | |
112 | "@var{args}: @code{~A} (was @code{%s} in older versions of\n" | |
113 | "Guile) formats using @code{display} and @code{~S} (was\n" | |
114 | "@code{%S}) formats using @code{write}. @var{data} is a list or\n" | |
115 | "@code{#f} depending on @var{key}: if @var{key} is\n" | |
116 | "@code{system-error} then it should be a list containing the\n" | |
117 | "Unix @code{errno} value; If @var{key} is @code{signal} then it\n" | |
118 | "should be a list containing the Unix signal number; otherwise\n" | |
119 | "it will usually be @code{#f}.") | |
1bbd0b84 | 120 | #define FUNC_NAME s_scm_error_scm |
c37e0e55 | 121 | { |
1bbd0b84 GB |
122 | char *szSubr; |
123 | char *szMessage; | |
a6d9e5ab DH |
124 | |
125 | SCM_VALIDATE_SYMBOL (1, key); | |
126 | ||
127 | if (SCM_FALSEP (subr)) | |
128 | { | |
129 | szSubr = NULL; | |
130 | } | |
131 | else if (SCM_SYMBOLP (subr)) | |
132 | { | |
133 | szSubr = SCM_SYMBOL_CHARS (subr); | |
134 | } | |
135 | else | |
136 | { | |
137 | SCM_VALIDATE_STRING (2, subr); | |
138 | SCM_STRING_COERCE_0TERMINATION_X (subr); | |
139 | szSubr = SCM_STRING_CHARS (subr); | |
140 | } | |
141 | ||
142 | if (SCM_FALSEP (message)) | |
143 | { | |
144 | szMessage = NULL; | |
145 | } | |
146 | else | |
147 | { | |
148 | SCM_VALIDATE_STRING (2, message); | |
149 | SCM_STRING_COERCE_0TERMINATION_X (message); | |
150 | szMessage = SCM_STRING_CHARS (message); | |
151 | } | |
89958ad0 | 152 | |
1e6808ea | 153 | scm_error (key, szSubr, szMessage, args, data); |
c37e0e55 GH |
154 | /* not reached. */ |
155 | } | |
1bbd0b84 | 156 | #undef FUNC_NAME |
c37e0e55 | 157 | |
a1ec6916 | 158 | SCM_DEFINE (scm_strerror, "strerror", 1, 0, 0, |
1bbd0b84 | 159 | (SCM err), |
1e6808ea MG |
160 | "Return the Unix error message corresponding to @var{err}, which\n" |
161 | "must be an integer value.") | |
1bbd0b84 | 162 | #define FUNC_NAME s_scm_strerror |
efb997f5 | 163 | { |
3b3b36dd | 164 | SCM_VALIDATE_INUM (1,err); |
efb997f5 GH |
165 | return scm_makfrom0str (strerror (SCM_INUM (err))); |
166 | } | |
1bbd0b84 | 167 | #undef FUNC_NAME |
efb997f5 | 168 | |
523f5266 | 169 | SCM_SYMBOL (scm_system_error_key, "system-error"); |
52859adf | 170 | void |
1bbd0b84 | 171 | scm_syserror (const char *subr) |
52859adf | 172 | { |
1de052a7 GH |
173 | int save_errno = errno; |
174 | ||
01f61221 | 175 | scm_error (scm_system_error_key, |
52859adf | 176 | subr, |
70d63753 | 177 | "~A", |
1de052a7 GH |
178 | scm_cons (scm_makfrom0str (strerror (save_errno)), SCM_EOL), |
179 | scm_cons (SCM_MAKINUM (save_errno), SCM_EOL)); | |
52859adf GH |
180 | } |
181 | ||
182 | void | |
1bbd0b84 | 183 | scm_syserror_msg (const char *subr, const char *message, SCM args, int eno) |
52859adf | 184 | { |
01f61221 | 185 | scm_error (scm_system_error_key, |
52859adf GH |
186 | subr, |
187 | message, | |
188 | args, | |
5c11cc9d | 189 | scm_cons (SCM_MAKINUM (eno), SCM_EOL)); |
52859adf GH |
190 | } |
191 | ||
523f5266 | 192 | SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow"); |
52859adf | 193 | void |
1bbd0b84 | 194 | scm_num_overflow (const char *subr) |
52859adf | 195 | { |
01f61221 | 196 | scm_error (scm_num_overflow_key, |
52859adf GH |
197 | subr, |
198 | "Numerical overflow", | |
199 | SCM_BOOL_F, | |
200 | SCM_BOOL_F); | |
201 | } | |
202 | ||
523f5266 | 203 | SCM_SYMBOL (scm_out_of_range_key, "out-of-range"); |
52859adf | 204 | void |
1bbd0b84 | 205 | scm_out_of_range (const char *subr, SCM bad_value) |
52859adf | 206 | { |
01f61221 | 207 | scm_error (scm_out_of_range_key, |
52859adf | 208 | subr, |
70d63753 | 209 | "Argument out of range: ~S", |
1afff620 | 210 | scm_list_1 (bad_value), |
52859adf GH |
211 | SCM_BOOL_F); |
212 | } | |
f5bf2977 | 213 | |
1e76143f GB |
214 | void |
215 | scm_out_of_range_pos (const char *subr, SCM bad_value, SCM pos) | |
216 | { | |
217 | scm_error (scm_out_of_range_key, | |
218 | subr, | |
70d63753 | 219 | "Argument ~S out of range: ~S", |
1afff620 | 220 | scm_list_2 (pos,bad_value), |
1e76143f GB |
221 | SCM_BOOL_F); |
222 | } | |
223 | ||
224 | ||
523f5266 | 225 | SCM_SYMBOL (scm_args_number_key, "wrong-number-of-args"); |
0f2d19dd | 226 | void |
1bbd0b84 | 227 | scm_wrong_num_args (SCM proc) |
f5bf2977 | 228 | { |
01f61221 | 229 | scm_error (scm_args_number_key, |
f5bf2977 | 230 | NULL, |
70d63753 | 231 | "Wrong number of arguments to ~A", |
1afff620 | 232 | scm_list_1 (proc), |
f5bf2977 GH |
233 | SCM_BOOL_F); |
234 | } | |
235 | ||
9f40cd87 DH |
236 | |
237 | void | |
238 | scm_error_num_args_subr (const char *subr) | |
239 | { | |
240 | scm_error (scm_args_number_key, | |
241 | NULL, | |
242 | "Wrong number of arguments to ~A", | |
1afff620 | 243 | scm_list_1 (scm_makfrom0str (subr)), |
9f40cd87 DH |
244 | SCM_BOOL_F); |
245 | } | |
246 | ||
247 | ||
523f5266 | 248 | SCM_SYMBOL (scm_arg_type_key, "wrong-type-arg"); |
f5bf2977 | 249 | void |
1bbd0b84 | 250 | scm_wrong_type_arg (const char *subr, int pos, SCM bad_value) |
f5bf2977 | 251 | { |
01f61221 | 252 | scm_error (scm_arg_type_key, |
f5bf2977 | 253 | subr, |
70d63753 GB |
254 | (pos == 0) ? "Wrong type argument: ~S" |
255 | : "Wrong type argument in position ~A: ~S", | |
1afff620 KN |
256 | (pos == 0) ? scm_list_1 (bad_value) |
257 | : scm_list_2 (SCM_MAKINUM (pos), bad_value), | |
f5bf2977 GH |
258 | SCM_BOOL_F); |
259 | } | |
260 | ||
b6791b2e GB |
261 | void |
262 | scm_wrong_type_arg_msg (const char *subr, int pos, SCM bad_value, const char *szMessage) | |
263 | { | |
264 | SCM msg = scm_makfrom0str(szMessage); | |
265 | if (pos == 0) { | |
266 | scm_error (scm_arg_type_key, | |
267 | subr, "Wrong type argument (expecting ~A): ~S", | |
1afff620 | 268 | scm_list_2 (msg, bad_value), |
b6791b2e GB |
269 | SCM_BOOL_F); |
270 | } else { | |
271 | scm_error (scm_arg_type_key, | |
272 | subr, | |
273 | "Wrong type argument in position ~A (expecting ~A): ~S", | |
1afff620 | 274 | scm_list_3 (SCM_MAKINUM (pos), msg, bad_value), |
b6791b2e GB |
275 | SCM_BOOL_F); |
276 | } | |
277 | } | |
278 | ||
279 | ||
523f5266 | 280 | SCM_SYMBOL (scm_memory_alloc_key, "memory-allocation-error"); |
f5bf2977 | 281 | void |
1bbd0b84 | 282 | scm_memory_error (const char *subr) |
f5bf2977 | 283 | { |
01f61221 | 284 | scm_error (scm_memory_alloc_key, |
f5bf2977 GH |
285 | subr, |
286 | "Memory allocation error", | |
287 | SCM_BOOL_F, | |
288 | SCM_BOOL_F); | |
289 | } | |
290 | ||
523f5266 GH |
291 | SCM_SYMBOL (scm_misc_error_key, "misc-error"); |
292 | void | |
1bbd0b84 | 293 | scm_misc_error (const char *subr, const char *message, SCM args) |
523f5266 GH |
294 | { |
295 | scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F); | |
296 | } | |
297 | ||
b3fcac34 DH |
298 | #if (SCM_DEBUG_DEPRECATED == 0) |
299 | ||
f5bf2977 | 300 | SCM |
1bbd0b84 | 301 | scm_wta (SCM arg, const char *pos, const char *s_subr) |
f5bf2977 GH |
302 | { |
303 | if (!s_subr || !*s_subr) | |
304 | s_subr = NULL; | |
305 | if ((~0x1fL) & (long) pos) | |
306 | { | |
307 | /* error string supplied. */ | |
1afff620 | 308 | scm_misc_error (s_subr, pos, scm_list_1 (arg)); |
f5bf2977 GH |
309 | } |
310 | else | |
311 | { | |
312 | /* numerical error code. */ | |
1be6b49c | 313 | int error = (int) pos; |
f5bf2977 GH |
314 | |
315 | switch (error) | |
316 | { | |
317 | case SCM_ARGn: | |
318 | scm_wrong_type_arg (s_subr, 0, arg); | |
319 | case SCM_ARG1: | |
320 | scm_wrong_type_arg (s_subr, 1, arg); | |
321 | case SCM_ARG2: | |
322 | scm_wrong_type_arg (s_subr, 2, arg); | |
323 | case SCM_ARG3: | |
324 | scm_wrong_type_arg (s_subr, 3, arg); | |
325 | case SCM_ARG4: | |
326 | scm_wrong_type_arg (s_subr, 4, arg); | |
327 | case SCM_ARG5: | |
328 | scm_wrong_type_arg (s_subr, 5, arg); | |
3d9352fb MD |
329 | case SCM_ARG6: |
330 | scm_wrong_type_arg (s_subr, 6, arg); | |
331 | case SCM_ARG7: | |
332 | scm_wrong_type_arg (s_subr, 7, arg); | |
f5bf2977 GH |
333 | case SCM_WNA: |
334 | scm_wrong_num_args (arg); | |
b63a956d DH |
335 | case SCM_OUTOFRANGE: |
336 | scm_out_of_range (s_subr, arg); | |
337 | case SCM_NALLOC: | |
338 | scm_memory_error (s_subr); | |
f5bf2977 GH |
339 | default: |
340 | /* this shouldn't happen. */ | |
b1edcd36 | 341 | scm_misc_error (s_subr, "Unknown error", SCM_EOL); |
f5bf2977 GH |
342 | } |
343 | } | |
344 | return SCM_UNSPECIFIED; | |
345 | } | |
346 | ||
b3fcac34 DH |
347 | #endif /* SCM_DEBUG_DEPRECATED == 0 */ |
348 | ||
0f2d19dd JB |
349 | void |
350 | scm_init_error () | |
0f2d19dd | 351 | { |
a0599745 | 352 | #include "libguile/cpp_err_symbols.c" |
8dc9439f | 353 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 354 | #include "libguile/error.x" |
8dc9439f | 355 | #endif |
0f2d19dd JB |
356 | } |
357 | ||
89e00824 ML |
358 | |
359 | /* | |
360 | Local Variables: | |
361 | c-file-style: "gnu" | |
362 | End: | |
363 | */ |