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7dc6e754 | 1 | /* Copyright (C) 1995,1996,1997,1998 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 | |
0f2d19dd | 49 | #include "_scm.h" |
20e6290e JB |
50 | #include "pairs.h" |
51 | #include "genio.h" | |
52 | #include "throw.h" | |
53 | ||
1bbd0b84 | 54 | #include "scm_validate.h" |
20e6290e | 55 | #include "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; | |
f5bf2977 | 77 | arg_list = scm_listify (subr ? scm_makfrom0str (subr) : SCM_BOOL_F, |
b59b97ba | 78 | message ? scm_makfrom0str (message) : SCM_BOOL_F, |
7cb1d4d3 GH |
79 | args, |
80 | rest, | |
81 | SCM_UNDEFINED); | |
82 | scm_ithrow (key, arg_list, 1); | |
83 | ||
84 | /* No return, but just in case: */ | |
5c11cc9d GH |
85 | { |
86 | const char msg[] = "guile:scm_error:scm_ithrow returned!\n"; | |
7cb1d4d3 | 87 | |
5c11cc9d GH |
88 | write (2, msg, (sizeof msg) - 1); |
89 | } | |
7cb1d4d3 GH |
90 | exit (1); |
91 | } | |
0f2d19dd | 92 | |
c37e0e55 | 93 | /* Scheme interface to scm_error. */ |
3b3b36dd | 94 | SCM_DEFINE (scm_error_scm, "scm-error", 5, 0, 0, |
1bbd0b84 | 95 | (SCM key, SCM subr, SCM message, SCM args, SCM rest), |
b380b885 MD |
96 | "Raise an error with key @var{key}. @var{subr} can be a string naming\n" |
97 | "the procedure associated with the error, or @code{#f}. @var{message}\n" | |
98 | "is the error message string, possibly containing @code{~S} and @code{~A}\n" | |
99 | "escapes. When an error is reported, these are replaced by formating the\n" | |
100 | "corresponding members of @var{args}: @code{~A} (was @code{%s}) formats using @code{display}\n" | |
101 | "and @code(~S) (was @code{%S}) formats using @code{write}. @var{data} is a\n" | |
102 | "list or @code{#f} depending on @var{key}: if @var{key} is\n" | |
103 | "@code{system-error} then it should be a list\n" | |
104 | "containing the Unix @code{errno} value; If @var{key} is @code{signal} then\n" | |
105 | "it should be a list containing the Unix signal number; otherwise it\n" | |
106 | "will usually be @code{#f}.") | |
1bbd0b84 | 107 | #define FUNC_NAME s_scm_error_scm |
c37e0e55 | 108 | { |
1bbd0b84 GB |
109 | char *szSubr; |
110 | char *szMessage; | |
3b3b36dd GB |
111 | SCM_VALIDATE_SYMBOL (1,key); |
112 | SCM_VALIDATE_NULLORROSTRING_COPY (2,subr,szSubr); | |
113 | SCM_VALIDATE_NULLORROSTRING_COPY (3,message,szMessage); | |
89958ad0 JB |
114 | SCM_COERCE_SUBSTR (message); |
115 | ||
1bbd0b84 | 116 | scm_error (key, szSubr, szMessage, args, rest); |
c37e0e55 GH |
117 | /* not reached. */ |
118 | } | |
1bbd0b84 | 119 | #undef FUNC_NAME |
c37e0e55 | 120 | |
a1ec6916 | 121 | SCM_DEFINE (scm_strerror, "strerror", 1, 0, 0, |
1bbd0b84 | 122 | (SCM err), |
b380b885 | 123 | "Returns the Unix error message corresponding to @var{errno}, an integer.") |
1bbd0b84 | 124 | #define FUNC_NAME s_scm_strerror |
efb997f5 | 125 | { |
3b3b36dd | 126 | SCM_VALIDATE_INUM (1,err); |
efb997f5 GH |
127 | return scm_makfrom0str (strerror (SCM_INUM (err))); |
128 | } | |
1bbd0b84 | 129 | #undef FUNC_NAME |
efb997f5 | 130 | |
523f5266 | 131 | SCM_SYMBOL (scm_system_error_key, "system-error"); |
52859adf | 132 | void |
1bbd0b84 | 133 | scm_syserror (const char *subr) |
52859adf | 134 | { |
01f61221 | 135 | scm_error (scm_system_error_key, |
52859adf | 136 | subr, |
70d63753 | 137 | "~A", |
5c11cc9d GH |
138 | scm_cons (scm_makfrom0str (strerror (errno)), SCM_EOL), |
139 | scm_cons (SCM_MAKINUM (errno), SCM_EOL)); | |
52859adf GH |
140 | } |
141 | ||
142 | void | |
1bbd0b84 | 143 | scm_syserror_msg (const char *subr, const char *message, SCM args, int eno) |
52859adf | 144 | { |
01f61221 | 145 | scm_error (scm_system_error_key, |
52859adf GH |
146 | subr, |
147 | message, | |
148 | args, | |
5c11cc9d | 149 | scm_cons (SCM_MAKINUM (eno), SCM_EOL)); |
52859adf GH |
150 | } |
151 | ||
f25f761d GH |
152 | /* scm_sysmissing is no longer used in libguile. it can probably be |
153 | removed after a release or two. there's a comment in NEWS about it | |
154 | (2000-01-09). */ | |
52859adf | 155 | void |
1bbd0b84 | 156 | scm_sysmissing (const char *subr) |
52859adf GH |
157 | { |
158 | #ifdef ENOSYS | |
01f61221 | 159 | scm_error (scm_system_error_key, |
52859adf | 160 | subr, |
70d63753 | 161 | "~A", |
5c11cc9d GH |
162 | scm_cons (scm_makfrom0str (strerror (ENOSYS)), SCM_EOL), |
163 | scm_cons (SCM_MAKINUM (ENOSYS), SCM_EOL)); | |
52859adf | 164 | #else |
01f61221 | 165 | scm_error (scm_system_error_key, |
52859adf GH |
166 | subr, |
167 | "Missing function", | |
168 | SCM_BOOL_F, | |
5c11cc9d | 169 | scm_cons (SCM_MAKINUM (0), SCM_EOL)); |
52859adf GH |
170 | #endif |
171 | } | |
172 | ||
523f5266 | 173 | SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow"); |
52859adf | 174 | void |
1bbd0b84 | 175 | scm_num_overflow (const char *subr) |
52859adf | 176 | { |
01f61221 | 177 | scm_error (scm_num_overflow_key, |
52859adf GH |
178 | subr, |
179 | "Numerical overflow", | |
180 | SCM_BOOL_F, | |
181 | SCM_BOOL_F); | |
182 | } | |
183 | ||
523f5266 | 184 | SCM_SYMBOL (scm_out_of_range_key, "out-of-range"); |
52859adf | 185 | void |
1bbd0b84 | 186 | scm_out_of_range (const char *subr, SCM bad_value) |
52859adf | 187 | { |
01f61221 | 188 | scm_error (scm_out_of_range_key, |
52859adf | 189 | subr, |
70d63753 | 190 | "Argument out of range: ~S", |
5c11cc9d | 191 | scm_cons (bad_value, SCM_EOL), |
52859adf GH |
192 | SCM_BOOL_F); |
193 | } | |
f5bf2977 | 194 | |
1e76143f GB |
195 | void |
196 | scm_out_of_range_pos (const char *subr, SCM bad_value, SCM pos) | |
197 | { | |
198 | scm_error (scm_out_of_range_key, | |
199 | subr, | |
70d63753 | 200 | "Argument ~S out of range: ~S", |
1e76143f GB |
201 | scm_listify (pos, bad_value, SCM_UNDEFINED), |
202 | SCM_BOOL_F); | |
203 | } | |
204 | ||
205 | ||
523f5266 | 206 | SCM_SYMBOL (scm_args_number_key, "wrong-number-of-args"); |
0f2d19dd | 207 | void |
1bbd0b84 | 208 | scm_wrong_num_args (SCM proc) |
f5bf2977 | 209 | { |
01f61221 | 210 | scm_error (scm_args_number_key, |
f5bf2977 | 211 | NULL, |
70d63753 | 212 | "Wrong number of arguments to ~A", |
5c11cc9d | 213 | scm_cons (proc, SCM_EOL), |
f5bf2977 GH |
214 | SCM_BOOL_F); |
215 | } | |
216 | ||
523f5266 | 217 | SCM_SYMBOL (scm_arg_type_key, "wrong-type-arg"); |
f5bf2977 | 218 | void |
1bbd0b84 | 219 | scm_wrong_type_arg (const char *subr, int pos, SCM bad_value) |
f5bf2977 | 220 | { |
01f61221 | 221 | scm_error (scm_arg_type_key, |
f5bf2977 | 222 | subr, |
70d63753 GB |
223 | (pos == 0) ? "Wrong type argument: ~S" |
224 | : "Wrong type argument in position ~A: ~S", | |
5c11cc9d GH |
225 | (pos == 0) ? scm_cons (bad_value, SCM_EOL) |
226 | : scm_cons (SCM_MAKINUM (pos), scm_cons (bad_value, SCM_EOL)), | |
f5bf2977 GH |
227 | SCM_BOOL_F); |
228 | } | |
229 | ||
523f5266 | 230 | SCM_SYMBOL (scm_memory_alloc_key, "memory-allocation-error"); |
f5bf2977 | 231 | void |
1bbd0b84 | 232 | scm_memory_error (const char *subr) |
f5bf2977 | 233 | { |
01f61221 | 234 | scm_error (scm_memory_alloc_key, |
f5bf2977 GH |
235 | subr, |
236 | "Memory allocation error", | |
237 | SCM_BOOL_F, | |
238 | SCM_BOOL_F); | |
239 | } | |
240 | ||
523f5266 GH |
241 | SCM_SYMBOL (scm_misc_error_key, "misc-error"); |
242 | void | |
1bbd0b84 | 243 | scm_misc_error (const char *subr, const char *message, SCM args) |
523f5266 GH |
244 | { |
245 | scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F); | |
246 | } | |
247 | ||
f5bf2977 GH |
248 | /* implements the SCM_ASSERT interface. */ |
249 | SCM | |
1bbd0b84 | 250 | scm_wta (SCM arg, const char *pos, const char *s_subr) |
f5bf2977 GH |
251 | { |
252 | if (!s_subr || !*s_subr) | |
253 | s_subr = NULL; | |
254 | if ((~0x1fL) & (long) pos) | |
255 | { | |
256 | /* error string supplied. */ | |
26a4f923 | 257 | scm_misc_error (s_subr, pos, SCM_LIST1 (arg)); |
f5bf2977 GH |
258 | } |
259 | else | |
260 | { | |
261 | /* numerical error code. */ | |
262 | int error = (long) pos; | |
263 | ||
264 | switch (error) | |
265 | { | |
266 | case SCM_ARGn: | |
267 | scm_wrong_type_arg (s_subr, 0, arg); | |
268 | case SCM_ARG1: | |
269 | scm_wrong_type_arg (s_subr, 1, arg); | |
270 | case SCM_ARG2: | |
271 | scm_wrong_type_arg (s_subr, 2, arg); | |
272 | case SCM_ARG3: | |
273 | scm_wrong_type_arg (s_subr, 3, arg); | |
274 | case SCM_ARG4: | |
275 | scm_wrong_type_arg (s_subr, 4, arg); | |
276 | case SCM_ARG5: | |
277 | scm_wrong_type_arg (s_subr, 5, arg); | |
3d9352fb MD |
278 | case SCM_ARG6: |
279 | scm_wrong_type_arg (s_subr, 6, arg); | |
280 | case SCM_ARG7: | |
281 | scm_wrong_type_arg (s_subr, 7, arg); | |
f5bf2977 GH |
282 | case SCM_WNA: |
283 | scm_wrong_num_args (arg); | |
284 | case SCM_OUTOFRANGE: | |
285 | scm_out_of_range (s_subr, arg); | |
286 | case SCM_NALLOC: | |
287 | scm_memory_error (s_subr); | |
288 | default: | |
289 | /* this shouldn't happen. */ | |
b1edcd36 | 290 | scm_misc_error (s_subr, "Unknown error", SCM_EOL); |
f5bf2977 GH |
291 | } |
292 | } | |
293 | return SCM_UNSPECIFIED; | |
294 | } | |
295 | ||
0f2d19dd JB |
296 | void |
297 | scm_init_error () | |
0f2d19dd | 298 | { |
67ec3667 | 299 | #include "cpp_err_symbols.c" |
0f2d19dd JB |
300 | #include "error.x" |
301 | } | |
302 |