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ef18914a | 1 | /* Copyright (C) 1995,1996,1997,1998, 2000 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> | |
bd9e24b3 | 48 | |
a0599745 MD |
49 | #include "libguile/_scm.h" |
50 | #include "libguile/pairs.h" | |
51 | #include "libguile/strings.h" | |
52 | #include "libguile/throw.h" | |
20e6290e | 53 | |
a0599745 MD |
54 | #include "libguile/validate.h" |
55 | #include "libguile/error.h" | |
0f2d19dd | 56 | |
bd9e24b3 GH |
57 | #ifdef HAVE_STRING_H |
58 | #include <string.h> | |
59 | #endif | |
95b88819 GH |
60 | #ifdef HAVE_UNISTD_H |
61 | #include <unistd.h> | |
62 | #endif | |
0f2d19dd JB |
63 | \f |
64 | ||
65 | \f | |
66 | /* {Errors and Exceptional Conditions} | |
67 | */ | |
68 | ||
0f2d19dd | 69 | |
0f2d19dd | 70 | extern int errno; |
f5bf2977 | 71 | |
c37e0e55 | 72 | /* All errors should pass through here. */ |
7cb1d4d3 | 73 | void |
1bbd0b84 | 74 | scm_error (SCM key, const char *subr, const char *message, SCM args, SCM rest) |
7cb1d4d3 GH |
75 | { |
76 | SCM arg_list; | |
ef18914a MD |
77 | if (scm_gc_heap_lock) |
78 | { | |
79 | /* The error occured during GC --- abort */ | |
80 | fprintf (stderr, "Error in %s during GC: %s\n", | |
81 | subr ? subr : "unknown function", | |
82 | message ? message : "<empty message>"); | |
83 | abort (); | |
84 | } | |
f5bf2977 | 85 | arg_list = scm_listify (subr ? scm_makfrom0str (subr) : SCM_BOOL_F, |
b59b97ba | 86 | message ? scm_makfrom0str (message) : SCM_BOOL_F, |
7cb1d4d3 GH |
87 | args, |
88 | rest, | |
89 | SCM_UNDEFINED); | |
90 | scm_ithrow (key, arg_list, 1); | |
91 | ||
92 | /* No return, but just in case: */ | |
5c11cc9d GH |
93 | { |
94 | const char msg[] = "guile:scm_error:scm_ithrow returned!\n"; | |
7cb1d4d3 | 95 | |
5c11cc9d GH |
96 | write (2, msg, (sizeof msg) - 1); |
97 | } | |
7cb1d4d3 GH |
98 | exit (1); |
99 | } | |
0f2d19dd | 100 | |
c37e0e55 | 101 | /* Scheme interface to scm_error. */ |
3b3b36dd | 102 | SCM_DEFINE (scm_error_scm, "scm-error", 5, 0, 0, |
1bbd0b84 | 103 | (SCM key, SCM subr, SCM message, SCM args, SCM rest), |
b380b885 MD |
104 | "Raise an error with key @var{key}. @var{subr} can be a string naming\n" |
105 | "the procedure associated with the error, or @code{#f}. @var{message}\n" | |
106 | "is the error message string, possibly containing @code{~S} and @code{~A}\n" | |
107 | "escapes. When an error is reported, these are replaced by formating the\n" | |
108 | "corresponding members of @var{args}: @code{~A} (was @code{%s}) formats using @code{display}\n" | |
109 | "and @code(~S) (was @code{%S}) formats using @code{write}. @var{data} is a\n" | |
110 | "list or @code{#f} depending on @var{key}: if @var{key} is\n" | |
111 | "@code{system-error} then it should be a list\n" | |
112 | "containing the Unix @code{errno} value; If @var{key} is @code{signal} then\n" | |
113 | "it should be a list containing the Unix signal number; otherwise it\n" | |
114 | "will usually be @code{#f}.") | |
1bbd0b84 | 115 | #define FUNC_NAME s_scm_error_scm |
c37e0e55 | 116 | { |
1bbd0b84 GB |
117 | char *szSubr; |
118 | char *szMessage; | |
3b3b36dd GB |
119 | SCM_VALIDATE_SYMBOL (1,key); |
120 | SCM_VALIDATE_NULLORROSTRING_COPY (2,subr,szSubr); | |
121 | SCM_VALIDATE_NULLORROSTRING_COPY (3,message,szMessage); | |
89958ad0 JB |
122 | SCM_COERCE_SUBSTR (message); |
123 | ||
1bbd0b84 | 124 | scm_error (key, szSubr, szMessage, args, rest); |
c37e0e55 GH |
125 | /* not reached. */ |
126 | } | |
1bbd0b84 | 127 | #undef FUNC_NAME |
c37e0e55 | 128 | |
a1ec6916 | 129 | SCM_DEFINE (scm_strerror, "strerror", 1, 0, 0, |
1bbd0b84 | 130 | (SCM err), |
1de052a7 | 131 | "Returns the Unix error message corresponding to @var{err}, an integer.") |
1bbd0b84 | 132 | #define FUNC_NAME s_scm_strerror |
efb997f5 | 133 | { |
3b3b36dd | 134 | SCM_VALIDATE_INUM (1,err); |
efb997f5 GH |
135 | return scm_makfrom0str (strerror (SCM_INUM (err))); |
136 | } | |
1bbd0b84 | 137 | #undef FUNC_NAME |
efb997f5 | 138 | |
523f5266 | 139 | SCM_SYMBOL (scm_system_error_key, "system-error"); |
52859adf | 140 | void |
1bbd0b84 | 141 | scm_syserror (const char *subr) |
52859adf | 142 | { |
1de052a7 GH |
143 | int save_errno = errno; |
144 | ||
01f61221 | 145 | scm_error (scm_system_error_key, |
52859adf | 146 | subr, |
70d63753 | 147 | "~A", |
1de052a7 GH |
148 | scm_cons (scm_makfrom0str (strerror (save_errno)), SCM_EOL), |
149 | scm_cons (SCM_MAKINUM (save_errno), SCM_EOL)); | |
52859adf GH |
150 | } |
151 | ||
152 | void | |
1bbd0b84 | 153 | scm_syserror_msg (const char *subr, const char *message, SCM args, int eno) |
52859adf | 154 | { |
01f61221 | 155 | scm_error (scm_system_error_key, |
52859adf GH |
156 | subr, |
157 | message, | |
158 | args, | |
5c11cc9d | 159 | scm_cons (SCM_MAKINUM (eno), SCM_EOL)); |
52859adf GH |
160 | } |
161 | ||
f5f2dcff DH |
162 | |
163 | #if (SCM_DEBUG_DEPRECATED == 0) | |
164 | ||
f25f761d GH |
165 | /* scm_sysmissing is no longer used in libguile. it can probably be |
166 | removed after a release or two. there's a comment in NEWS about it | |
167 | (2000-01-09). */ | |
52859adf | 168 | void |
1bbd0b84 | 169 | scm_sysmissing (const char *subr) |
52859adf GH |
170 | { |
171 | #ifdef ENOSYS | |
01f61221 | 172 | scm_error (scm_system_error_key, |
52859adf | 173 | subr, |
70d63753 | 174 | "~A", |
5c11cc9d GH |
175 | scm_cons (scm_makfrom0str (strerror (ENOSYS)), SCM_EOL), |
176 | scm_cons (SCM_MAKINUM (ENOSYS), SCM_EOL)); | |
52859adf | 177 | #else |
01f61221 | 178 | scm_error (scm_system_error_key, |
52859adf GH |
179 | subr, |
180 | "Missing function", | |
181 | SCM_BOOL_F, | |
5c11cc9d | 182 | scm_cons (SCM_MAKINUM (0), SCM_EOL)); |
52859adf GH |
183 | #endif |
184 | } | |
185 | ||
f5f2dcff DH |
186 | #endif /* SCM_DEBUG_DEPRECATED == 0 */ |
187 | ||
188 | ||
523f5266 | 189 | SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow"); |
52859adf | 190 | void |
1bbd0b84 | 191 | scm_num_overflow (const char *subr) |
52859adf | 192 | { |
01f61221 | 193 | scm_error (scm_num_overflow_key, |
52859adf GH |
194 | subr, |
195 | "Numerical overflow", | |
196 | SCM_BOOL_F, | |
197 | SCM_BOOL_F); | |
198 | } | |
199 | ||
523f5266 | 200 | SCM_SYMBOL (scm_out_of_range_key, "out-of-range"); |
52859adf | 201 | void |
1bbd0b84 | 202 | scm_out_of_range (const char *subr, SCM bad_value) |
52859adf | 203 | { |
01f61221 | 204 | scm_error (scm_out_of_range_key, |
52859adf | 205 | subr, |
70d63753 | 206 | "Argument out of range: ~S", |
b6791b2e | 207 | SCM_LIST1(bad_value), |
52859adf GH |
208 | SCM_BOOL_F); |
209 | } | |
f5bf2977 | 210 | |
1e76143f GB |
211 | void |
212 | scm_out_of_range_pos (const char *subr, SCM bad_value, SCM pos) | |
213 | { | |
214 | scm_error (scm_out_of_range_key, | |
215 | subr, | |
70d63753 | 216 | "Argument ~S out of range: ~S", |
b6791b2e | 217 | SCM_LIST2(pos,bad_value), |
1e76143f GB |
218 | SCM_BOOL_F); |
219 | } | |
220 | ||
221 | ||
523f5266 | 222 | SCM_SYMBOL (scm_args_number_key, "wrong-number-of-args"); |
0f2d19dd | 223 | void |
1bbd0b84 | 224 | scm_wrong_num_args (SCM proc) |
f5bf2977 | 225 | { |
01f61221 | 226 | scm_error (scm_args_number_key, |
f5bf2977 | 227 | NULL, |
70d63753 | 228 | "Wrong number of arguments to ~A", |
b6791b2e | 229 | SCM_LIST1(proc), |
f5bf2977 GH |
230 | SCM_BOOL_F); |
231 | } | |
232 | ||
523f5266 | 233 | SCM_SYMBOL (scm_arg_type_key, "wrong-type-arg"); |
f5bf2977 | 234 | void |
1bbd0b84 | 235 | scm_wrong_type_arg (const char *subr, int pos, SCM bad_value) |
f5bf2977 | 236 | { |
01f61221 | 237 | scm_error (scm_arg_type_key, |
f5bf2977 | 238 | subr, |
70d63753 GB |
239 | (pos == 0) ? "Wrong type argument: ~S" |
240 | : "Wrong type argument in position ~A: ~S", | |
b6791b2e GB |
241 | (pos == 0) ? SCM_LIST1(bad_value) |
242 | : SCM_LIST2(SCM_MAKINUM(pos), bad_value), | |
f5bf2977 GH |
243 | SCM_BOOL_F); |
244 | } | |
245 | ||
b6791b2e GB |
246 | void |
247 | scm_wrong_type_arg_msg (const char *subr, int pos, SCM bad_value, const char *szMessage) | |
248 | { | |
249 | SCM msg = scm_makfrom0str(szMessage); | |
250 | if (pos == 0) { | |
251 | scm_error (scm_arg_type_key, | |
252 | subr, "Wrong type argument (expecting ~A): ~S", | |
253 | SCM_LIST2(msg,bad_value), | |
254 | SCM_BOOL_F); | |
255 | } else { | |
256 | scm_error (scm_arg_type_key, | |
257 | subr, | |
258 | "Wrong type argument in position ~A (expecting ~A): ~S", | |
259 | SCM_LIST3(SCM_MAKINUM(pos),msg,bad_value), | |
260 | SCM_BOOL_F); | |
261 | } | |
262 | } | |
263 | ||
264 | ||
523f5266 | 265 | SCM_SYMBOL (scm_memory_alloc_key, "memory-allocation-error"); |
f5bf2977 | 266 | void |
1bbd0b84 | 267 | scm_memory_error (const char *subr) |
f5bf2977 | 268 | { |
01f61221 | 269 | scm_error (scm_memory_alloc_key, |
f5bf2977 GH |
270 | subr, |
271 | "Memory allocation error", | |
272 | SCM_BOOL_F, | |
273 | SCM_BOOL_F); | |
274 | } | |
275 | ||
523f5266 GH |
276 | SCM_SYMBOL (scm_misc_error_key, "misc-error"); |
277 | void | |
1bbd0b84 | 278 | scm_misc_error (const char *subr, const char *message, SCM args) |
523f5266 GH |
279 | { |
280 | scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F); | |
281 | } | |
282 | ||
f5bf2977 GH |
283 | /* implements the SCM_ASSERT interface. */ |
284 | SCM | |
1bbd0b84 | 285 | scm_wta (SCM arg, const char *pos, const char *s_subr) |
f5bf2977 GH |
286 | { |
287 | if (!s_subr || !*s_subr) | |
288 | s_subr = NULL; | |
289 | if ((~0x1fL) & (long) pos) | |
290 | { | |
291 | /* error string supplied. */ | |
26a4f923 | 292 | scm_misc_error (s_subr, pos, SCM_LIST1 (arg)); |
f5bf2977 GH |
293 | } |
294 | else | |
295 | { | |
296 | /* numerical error code. */ | |
297 | int error = (long) pos; | |
298 | ||
299 | switch (error) | |
300 | { | |
301 | case SCM_ARGn: | |
302 | scm_wrong_type_arg (s_subr, 0, arg); | |
303 | case SCM_ARG1: | |
304 | scm_wrong_type_arg (s_subr, 1, arg); | |
305 | case SCM_ARG2: | |
306 | scm_wrong_type_arg (s_subr, 2, arg); | |
307 | case SCM_ARG3: | |
308 | scm_wrong_type_arg (s_subr, 3, arg); | |
309 | case SCM_ARG4: | |
310 | scm_wrong_type_arg (s_subr, 4, arg); | |
311 | case SCM_ARG5: | |
312 | scm_wrong_type_arg (s_subr, 5, arg); | |
3d9352fb MD |
313 | case SCM_ARG6: |
314 | scm_wrong_type_arg (s_subr, 6, arg); | |
315 | case SCM_ARG7: | |
316 | scm_wrong_type_arg (s_subr, 7, arg); | |
f5bf2977 GH |
317 | case SCM_WNA: |
318 | scm_wrong_num_args (arg); | |
f5bf2977 GH |
319 | default: |
320 | /* this shouldn't happen. */ | |
b1edcd36 | 321 | scm_misc_error (s_subr, "Unknown error", SCM_EOL); |
f5bf2977 GH |
322 | } |
323 | } | |
324 | return SCM_UNSPECIFIED; | |
325 | } | |
326 | ||
0f2d19dd JB |
327 | void |
328 | scm_init_error () | |
0f2d19dd | 329 | { |
a0599745 MD |
330 | #include "libguile/cpp_err_symbols.c" |
331 | #include "libguile/error.x" | |
0f2d19dd JB |
332 | } |
333 | ||
89e00824 ML |
334 | |
335 | /* | |
336 | Local Variables: | |
337 | c-file-style: "gnu" | |
338 | End: | |
339 | */ |