1 /* Copyright (C) 1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc.
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public
5 * License as published by the Free Software Foundation; either
6 * version 2.1 of the License, or (at your option) any later version.
8 * This library 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 GNU
11 * Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with this library; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 #include "libguile/_scm.h"
29 #include "libguile/pairs.h"
30 #include "libguile/strings.h"
31 #include "libguile/throw.h"
33 #include "libguile/validate.h"
34 #include "libguile/error.h"
50 /* {Errors and Exceptional Conditions}
54 /* All errors should pass through here. */
56 scm_error (SCM key
, const char *subr
, const char *message
, SCM args
, SCM rest
)
61 /* The error occured during GC --- abort */
62 fprintf (stderr
, "Error in %s during GC: %s\n",
63 subr
? subr
: "unknown function",
64 message
? message
: "<empty message>");
67 arg_list
= scm_list_4 (subr
? scm_makfrom0str (subr
) : SCM_BOOL_F
,
68 message
? scm_makfrom0str (message
) : SCM_BOOL_F
,
71 scm_ithrow (key
, arg_list
, 1);
73 /* No return, but just in case: */
75 const char msg
[] = "guile:scm_error:scm_ithrow returned!\n";
77 write (2, msg
, (sizeof msg
) - 1);
82 /* Scheme interface to scm_error. */
83 SCM_DEFINE (scm_error_scm
, "scm-error", 5, 0, 0,
84 (SCM key
, SCM subr
, SCM message
, SCM args
, SCM data
),
85 "Raise an error with key @var{key}. @var{subr} can be a string\n"
86 "naming the procedure associated with the error, or @code{#f}.\n"
87 "@var{message} is the error message string, possibly containing\n"
88 "@code{~S} and @code{~A} escapes. When an error is reported,\n"
89 "these are replaced by formatting the corresponding members of\n"
90 "@var{args}: @code{~A} (was @code{%s} in older versions of\n"
91 "Guile) formats using @code{display} and @code{~S} (was\n"
92 "@code{%S}) formats using @code{write}. @var{data} is a list or\n"
93 "@code{#f} depending on @var{key}: if @var{key} is\n"
94 "@code{system-error} then it should be a list containing the\n"
95 "Unix @code{errno} value; If @var{key} is @code{signal} then it\n"
96 "should be a list containing the Unix signal number; otherwise\n"
97 "it will usually be @code{#f}.")
98 #define FUNC_NAME s_scm_error_scm
103 SCM_VALIDATE_SYMBOL (1, key
);
105 if (scm_is_false (subr
))
109 else if (SCM_SYMBOLP (subr
))
111 szSubr
= SCM_SYMBOL_CHARS (subr
);
115 SCM_VALIDATE_STRING (2, subr
);
116 szSubr
= SCM_STRING_CHARS (subr
);
119 if (scm_is_false (message
))
125 SCM_VALIDATE_STRING (2, message
);
126 szMessage
= SCM_STRING_CHARS (message
);
129 scm_error (key
, szSubr
, szMessage
, args
, data
);
135 # include "win32-socket.h"
136 # define SCM_I_STRERROR(err) \
137 ((err >= WSABASEERR) ? scm_i_socket_strerror (err) : strerror (err))
138 # define SCM_I_ERRNO() \
139 (errno ? errno : scm_i_socket_errno ())
141 # define SCM_I_STRERROR(err) strerror (err)
142 # define SCM_I_ERRNO() errno
143 #endif /* __MINGW32__ */
145 SCM_DEFINE (scm_strerror
, "strerror", 1, 0, 0,
147 "Return the Unix error message corresponding to @var{err}, which\n"
148 "must be an integer value.")
149 #define FUNC_NAME s_scm_strerror
151 return scm_makfrom0str (SCM_I_STRERROR (scm_to_int (err
)));
155 SCM_GLOBAL_SYMBOL (scm_system_error_key
, "system-error");
157 scm_syserror (const char *subr
)
159 int save_errno
= SCM_I_ERRNO ();
161 scm_error (scm_system_error_key
,
164 scm_cons (scm_makfrom0str (SCM_I_STRERROR (save_errno
)), SCM_EOL
),
165 scm_cons (scm_from_int (save_errno
), SCM_EOL
));
169 scm_syserror_msg (const char *subr
, const char *message
, SCM args
, int eno
)
171 scm_error (scm_system_error_key
,
175 scm_cons (scm_from_int (eno
), SCM_EOL
));
178 SCM_GLOBAL_SYMBOL (scm_num_overflow_key
, "numerical-overflow");
180 scm_num_overflow (const char *subr
)
182 scm_error (scm_num_overflow_key
,
184 "Numerical overflow",
189 SCM_GLOBAL_SYMBOL (scm_out_of_range_key
, "out-of-range");
191 scm_out_of_range (const char *subr
, SCM bad_value
)
193 scm_error (scm_out_of_range_key
,
195 "Argument out of range: ~S",
196 scm_list_1 (bad_value
),
201 scm_out_of_range_pos (const char *subr
, SCM bad_value
, SCM pos
)
203 scm_error (scm_out_of_range_key
,
205 "Argument ~S out of range: ~S",
206 scm_list_2 (pos
, bad_value
),
211 SCM_GLOBAL_SYMBOL (scm_args_number_key
, "wrong-number-of-args");
213 scm_wrong_num_args (SCM proc
)
215 scm_error (scm_args_number_key
,
217 "Wrong number of arguments to ~A",
224 scm_error_num_args_subr (const char *subr
)
226 scm_error (scm_args_number_key
,
228 "Wrong number of arguments to ~A",
229 scm_list_1 (scm_makfrom0str (subr
)),
234 SCM_GLOBAL_SYMBOL (scm_arg_type_key
, "wrong-type-arg");
236 scm_wrong_type_arg (const char *subr
, int pos
, SCM bad_value
)
238 scm_error (scm_arg_type_key
,
240 (pos
== 0) ? "Wrong type argument: ~S"
241 : "Wrong type argument in position ~A: ~S",
242 (pos
== 0) ? scm_list_1 (bad_value
)
243 : scm_list_2 (SCM_I_MAKINUM (pos
), bad_value
),
248 scm_wrong_type_arg_msg (const char *subr
, int pos
, SCM bad_value
, const char *szMessage
)
250 SCM msg
= scm_makfrom0str(szMessage
);
252 scm_error (scm_arg_type_key
,
253 subr
, "Wrong type argument (expecting ~A): ~S",
254 scm_list_2 (msg
, bad_value
),
257 scm_error (scm_arg_type_key
,
259 "Wrong type argument in position ~A (expecting ~A): ~S",
260 scm_list_3 (SCM_I_MAKINUM (pos
), msg
, bad_value
),
266 SCM_GLOBAL_SYMBOL (scm_memory_alloc_key
, "memory-allocation-error");
268 scm_memory_error (const char *subr
)
270 scm_error (scm_memory_alloc_key
,
272 "Memory allocation error",
277 SCM_GLOBAL_SYMBOL (scm_misc_error_key
, "misc-error");
279 scm_misc_error (const char *subr
, const char *message
, SCM args
)
281 scm_error (scm_misc_error_key
, subr
, message
, args
, SCM_BOOL_F
);
287 #include "libguile/cpp_err_symbols.c"
288 #include "libguile/error.x"