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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, |
1e6808ea MG |
101 | (SCM key, SCM subr, SCM message, SCM args, SCM data), |
102 | "Raise an error with key @var{key}. @var{subr} can be a string\n" | |
103 | "naming the procedure associated with the error, or @code{#f}.\n" | |
104 | "@var{message} is the error message string, possibly containing\n" | |
105 | "@code{~S} and @code{~A} escapes. When an error is reported,\n" | |
106 | "these are replaced by formatting the corresponding members of\n" | |
107 | "@var{args}: @code{~A} (was @code{%s} in older versions of\n" | |
108 | "Guile) formats using @code{display} and @code{~S} (was\n" | |
109 | "@code{%S}) formats using @code{write}. @var{data} is a list or\n" | |
110 | "@code{#f} depending on @var{key}: if @var{key} is\n" | |
111 | "@code{system-error} then it should be a list containing the\n" | |
112 | "Unix @code{errno} value; If @var{key} is @code{signal} then it\n" | |
113 | "should be a list containing the Unix signal number; otherwise\n" | |
114 | "it will usually be @code{#f}.") | |
1bbd0b84 | 115 | #define FUNC_NAME s_scm_error_scm |
c37e0e55 | 116 | { |
1bbd0b84 GB |
117 | char *szSubr; |
118 | char *szMessage; | |
a6d9e5ab DH |
119 | |
120 | SCM_VALIDATE_SYMBOL (1, key); | |
121 | ||
122 | if (SCM_FALSEP (subr)) | |
123 | { | |
124 | szSubr = NULL; | |
125 | } | |
126 | else if (SCM_SYMBOLP (subr)) | |
127 | { | |
128 | szSubr = SCM_SYMBOL_CHARS (subr); | |
129 | } | |
130 | else | |
131 | { | |
132 | SCM_VALIDATE_STRING (2, subr); | |
133 | SCM_STRING_COERCE_0TERMINATION_X (subr); | |
134 | szSubr = SCM_STRING_CHARS (subr); | |
135 | } | |
136 | ||
137 | if (SCM_FALSEP (message)) | |
138 | { | |
139 | szMessage = NULL; | |
140 | } | |
141 | else | |
142 | { | |
143 | SCM_VALIDATE_STRING (2, message); | |
144 | SCM_STRING_COERCE_0TERMINATION_X (message); | |
145 | szMessage = SCM_STRING_CHARS (message); | |
146 | } | |
89958ad0 | 147 | |
1e6808ea | 148 | scm_error (key, szSubr, szMessage, args, data); |
c37e0e55 GH |
149 | /* not reached. */ |
150 | } | |
1bbd0b84 | 151 | #undef FUNC_NAME |
c37e0e55 | 152 | |
a1ec6916 | 153 | SCM_DEFINE (scm_strerror, "strerror", 1, 0, 0, |
1bbd0b84 | 154 | (SCM err), |
1e6808ea MG |
155 | "Return the Unix error message corresponding to @var{err}, which\n" |
156 | "must be an integer value.") | |
1bbd0b84 | 157 | #define FUNC_NAME s_scm_strerror |
efb997f5 | 158 | { |
3b3b36dd | 159 | SCM_VALIDATE_INUM (1,err); |
efb997f5 GH |
160 | return scm_makfrom0str (strerror (SCM_INUM (err))); |
161 | } | |
1bbd0b84 | 162 | #undef FUNC_NAME |
efb997f5 | 163 | |
523f5266 | 164 | SCM_SYMBOL (scm_system_error_key, "system-error"); |
52859adf | 165 | void |
1bbd0b84 | 166 | scm_syserror (const char *subr) |
52859adf | 167 | { |
1de052a7 GH |
168 | int save_errno = errno; |
169 | ||
01f61221 | 170 | scm_error (scm_system_error_key, |
52859adf | 171 | subr, |
70d63753 | 172 | "~A", |
1de052a7 GH |
173 | scm_cons (scm_makfrom0str (strerror (save_errno)), SCM_EOL), |
174 | scm_cons (SCM_MAKINUM (save_errno), SCM_EOL)); | |
52859adf GH |
175 | } |
176 | ||
177 | void | |
1bbd0b84 | 178 | scm_syserror_msg (const char *subr, const char *message, SCM args, int eno) |
52859adf | 179 | { |
01f61221 | 180 | scm_error (scm_system_error_key, |
52859adf GH |
181 | subr, |
182 | message, | |
183 | args, | |
5c11cc9d | 184 | scm_cons (SCM_MAKINUM (eno), SCM_EOL)); |
52859adf GH |
185 | } |
186 | ||
523f5266 | 187 | SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow"); |
52859adf | 188 | void |
1bbd0b84 | 189 | scm_num_overflow (const char *subr) |
52859adf | 190 | { |
01f61221 | 191 | scm_error (scm_num_overflow_key, |
52859adf GH |
192 | subr, |
193 | "Numerical overflow", | |
194 | SCM_BOOL_F, | |
195 | SCM_BOOL_F); | |
196 | } | |
197 | ||
523f5266 | 198 | SCM_SYMBOL (scm_out_of_range_key, "out-of-range"); |
52859adf | 199 | void |
1bbd0b84 | 200 | scm_out_of_range (const char *subr, SCM bad_value) |
52859adf | 201 | { |
01f61221 | 202 | scm_error (scm_out_of_range_key, |
52859adf | 203 | subr, |
70d63753 | 204 | "Argument out of range: ~S", |
b6791b2e | 205 | SCM_LIST1(bad_value), |
52859adf GH |
206 | SCM_BOOL_F); |
207 | } | |
f5bf2977 | 208 | |
1e76143f GB |
209 | void |
210 | scm_out_of_range_pos (const char *subr, SCM bad_value, SCM pos) | |
211 | { | |
212 | scm_error (scm_out_of_range_key, | |
213 | subr, | |
70d63753 | 214 | "Argument ~S out of range: ~S", |
b6791b2e | 215 | SCM_LIST2(pos,bad_value), |
1e76143f GB |
216 | SCM_BOOL_F); |
217 | } | |
218 | ||
219 | ||
523f5266 | 220 | SCM_SYMBOL (scm_args_number_key, "wrong-number-of-args"); |
0f2d19dd | 221 | void |
1bbd0b84 | 222 | scm_wrong_num_args (SCM proc) |
f5bf2977 | 223 | { |
01f61221 | 224 | scm_error (scm_args_number_key, |
f5bf2977 | 225 | NULL, |
70d63753 | 226 | "Wrong number of arguments to ~A", |
b6791b2e | 227 | SCM_LIST1(proc), |
f5bf2977 GH |
228 | SCM_BOOL_F); |
229 | } | |
230 | ||
9f40cd87 DH |
231 | |
232 | void | |
233 | scm_error_num_args_subr (const char *subr) | |
234 | { | |
235 | scm_error (scm_args_number_key, | |
236 | NULL, | |
237 | "Wrong number of arguments to ~A", | |
238 | SCM_LIST1 (scm_makfrom0str (subr)), | |
239 | SCM_BOOL_F); | |
240 | } | |
241 | ||
242 | ||
523f5266 | 243 | SCM_SYMBOL (scm_arg_type_key, "wrong-type-arg"); |
f5bf2977 | 244 | void |
1bbd0b84 | 245 | scm_wrong_type_arg (const char *subr, int pos, SCM bad_value) |
f5bf2977 | 246 | { |
01f61221 | 247 | scm_error (scm_arg_type_key, |
f5bf2977 | 248 | subr, |
70d63753 GB |
249 | (pos == 0) ? "Wrong type argument: ~S" |
250 | : "Wrong type argument in position ~A: ~S", | |
b6791b2e GB |
251 | (pos == 0) ? SCM_LIST1(bad_value) |
252 | : SCM_LIST2(SCM_MAKINUM(pos), bad_value), | |
f5bf2977 GH |
253 | SCM_BOOL_F); |
254 | } | |
255 | ||
b6791b2e GB |
256 | void |
257 | scm_wrong_type_arg_msg (const char *subr, int pos, SCM bad_value, const char *szMessage) | |
258 | { | |
259 | SCM msg = scm_makfrom0str(szMessage); | |
260 | if (pos == 0) { | |
261 | scm_error (scm_arg_type_key, | |
262 | subr, "Wrong type argument (expecting ~A): ~S", | |
263 | SCM_LIST2(msg,bad_value), | |
264 | SCM_BOOL_F); | |
265 | } else { | |
266 | scm_error (scm_arg_type_key, | |
267 | subr, | |
268 | "Wrong type argument in position ~A (expecting ~A): ~S", | |
269 | SCM_LIST3(SCM_MAKINUM(pos),msg,bad_value), | |
270 | SCM_BOOL_F); | |
271 | } | |
272 | } | |
273 | ||
274 | ||
523f5266 | 275 | SCM_SYMBOL (scm_memory_alloc_key, "memory-allocation-error"); |
f5bf2977 | 276 | void |
1bbd0b84 | 277 | scm_memory_error (const char *subr) |
f5bf2977 | 278 | { |
01f61221 | 279 | scm_error (scm_memory_alloc_key, |
f5bf2977 GH |
280 | subr, |
281 | "Memory allocation error", | |
282 | SCM_BOOL_F, | |
283 | SCM_BOOL_F); | |
284 | } | |
285 | ||
523f5266 GH |
286 | SCM_SYMBOL (scm_misc_error_key, "misc-error"); |
287 | void | |
1bbd0b84 | 288 | scm_misc_error (const char *subr, const char *message, SCM args) |
523f5266 GH |
289 | { |
290 | scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F); | |
291 | } | |
292 | ||
b3fcac34 DH |
293 | #if (SCM_DEBUG_DEPRECATED == 0) |
294 | ||
f5bf2977 | 295 | SCM |
1bbd0b84 | 296 | scm_wta (SCM arg, const char *pos, const char *s_subr) |
f5bf2977 GH |
297 | { |
298 | if (!s_subr || !*s_subr) | |
299 | s_subr = NULL; | |
300 | if ((~0x1fL) & (long) pos) | |
301 | { | |
302 | /* error string supplied. */ | |
26a4f923 | 303 | scm_misc_error (s_subr, pos, SCM_LIST1 (arg)); |
f5bf2977 GH |
304 | } |
305 | else | |
306 | { | |
307 | /* numerical error code. */ | |
1be6b49c | 308 | int error = (int) pos; |
f5bf2977 GH |
309 | |
310 | switch (error) | |
311 | { | |
312 | case SCM_ARGn: | |
313 | scm_wrong_type_arg (s_subr, 0, arg); | |
314 | case SCM_ARG1: | |
315 | scm_wrong_type_arg (s_subr, 1, arg); | |
316 | case SCM_ARG2: | |
317 | scm_wrong_type_arg (s_subr, 2, arg); | |
318 | case SCM_ARG3: | |
319 | scm_wrong_type_arg (s_subr, 3, arg); | |
320 | case SCM_ARG4: | |
321 | scm_wrong_type_arg (s_subr, 4, arg); | |
322 | case SCM_ARG5: | |
323 | scm_wrong_type_arg (s_subr, 5, arg); | |
3d9352fb MD |
324 | case SCM_ARG6: |
325 | scm_wrong_type_arg (s_subr, 6, arg); | |
326 | case SCM_ARG7: | |
327 | scm_wrong_type_arg (s_subr, 7, arg); | |
f5bf2977 GH |
328 | case SCM_WNA: |
329 | scm_wrong_num_args (arg); | |
b63a956d DH |
330 | case SCM_OUTOFRANGE: |
331 | scm_out_of_range (s_subr, arg); | |
332 | case SCM_NALLOC: | |
333 | scm_memory_error (s_subr); | |
f5bf2977 GH |
334 | default: |
335 | /* this shouldn't happen. */ | |
b1edcd36 | 336 | scm_misc_error (s_subr, "Unknown error", SCM_EOL); |
f5bf2977 GH |
337 | } |
338 | } | |
339 | return SCM_UNSPECIFIED; | |
340 | } | |
341 | ||
b3fcac34 DH |
342 | #endif /* SCM_DEBUG_DEPRECATED == 0 */ |
343 | ||
0f2d19dd JB |
344 | void |
345 | scm_init_error () | |
0f2d19dd | 346 | { |
a0599745 | 347 | #include "libguile/cpp_err_symbols.c" |
8dc9439f | 348 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 349 | #include "libguile/error.x" |
8dc9439f | 350 | #endif |
0f2d19dd JB |
351 | } |
352 | ||
89e00824 ML |
353 | |
354 | /* | |
355 | Local Variables: | |
356 | c-file-style: "gnu" | |
357 | End: | |
358 | */ |