-/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
+ * If you do not wish that, delete this exception notice. */
\f
#include <stdio.h>
/* {Errors and Exceptional Conditions}
*/
-SCM system_error_sym;
-
-/* True between SCM_DEFER_INTS and SCM_ALLOW_INTS, and
- * when the interpreter is not running at all.
- */
-int scm_ints_disabled = 1;
-
extern int errno;
-#ifdef __STDC__
-static void
-err_head (char *str)
-#else
-static void
-err_head (str)
- char *str;
-#endif
+
+/* All errors should pass through here. */
+void
+scm_error (key, subr, message, args, rest)
+ SCM key;
+ char *subr;
+ char *message;
+ SCM args;
+ SCM rest;
{
- int oerrno = errno;
- if (SCM_NIMP (scm_cur_outp))
- scm_fflush (scm_cur_outp);
- scm_gen_putc ('\n', scm_cur_errp);
-#if 0
- if (SCM_BOOL_F != *scm_loc_loadpath)
- {
- scm_prin1 (*scm_loc_loadpath, scm_cur_errp, 1);
- scm_gen_puts (scm_regular_string, ", line ", scm_cur_errp);
- scm_intprint ((long) scm_linum, 10, scm_cur_errp);
- scm_gen_puts (scm_regular_string, ": ", scm_cur_errp);
- }
-#endif
- scm_fflush (scm_cur_errp);
- errno = oerrno;
- if (scm_cur_errp == scm_def_errp)
- {
- if (errno > 0)
- perror (str);
- fflush (stderr);
- return;
- }
+ SCM arg_list;
+ arg_list = scm_listify (subr ? scm_makfrom0str (subr) : SCM_BOOL_F,
+ message ? scm_makfrom0str (message) : SCM_BOOL_F,
+ args,
+ rest,
+ SCM_UNDEFINED);
+ scm_ithrow (key, arg_list, 1);
+
+ /* No return, but just in case: */
+
+ write (2, "unhandled system error\n",
+ sizeof ("unhandled system error\n") - 1);
+ exit (1);
}
+/* Scheme interface to scm_error. */
+SCM_PROC(s_error_scm, "scm-error", 5, 0, 0, scm_error_scm);
+SCM
+scm_error_scm (key, subr, message, args, rest)
+ SCM key;
+ SCM subr;
+ SCM message;
+ SCM args;
+ SCM rest;
+{
+ SCM_ASSERT (SCM_NIMP (key) && SCM_SYMBOLP (key), key, SCM_ARG1, s_error_scm);
+ SCM_ASSERT (SCM_FALSEP (subr) || (SCM_NIMP (subr) && SCM_ROSTRINGP (subr)),
+ subr, SCM_ARG2, s_error_scm);
+ SCM_ASSERT (SCM_FALSEP (message)
+ || (SCM_NIMP (message) && SCM_ROSTRINGP (message)),
+ message, SCM_ARG3, s_error_scm);
+
+ SCM_COERCE_SUBSTR (message);
-SCM_PROC(s_errno, "errno", 0, 1, 0, scm_errno);
-#ifdef __STDC__
-SCM
-scm_errno (SCM arg)
-#else
-SCM
-scm_errno (arg)
- SCM arg;
-#endif
+ scm_error (key,
+ (SCM_FALSEP (subr)) ? NULL : SCM_ROCHARS (subr),
+ (SCM_FALSEP (message)) ? NULL : SCM_ROCHARS (message),
+ args,
+ rest);
+ /* not reached. */
+}
+
+SCM_PROC (s_strerror, "strerror", 1, 0, 0, scm_strerror);
+SCM
+scm_strerror (SCM err)
{
- int old = errno;
- if (!SCM_UNBNDP (arg))
- {
- if (SCM_FALSEP (arg))
- errno = 0;
- else
- errno = SCM_INUM (arg);
- }
- return SCM_MAKINUM (old);
+ SCM_ASSERT (SCM_INUMP (err), err, SCM_ARG1, s_strerror);
+ return scm_makfrom0str (strerror (SCM_INUM (err)));
}
-SCM_PROC(s_perror, "perror", 1, 0, 0, scm_perror);
-#ifdef __STDC__
-SCM
-scm_perror (SCM arg)
-#else
-SCM
-scm_perror (arg)
- SCM arg;
-#endif
+SCM_SYMBOL (scm_system_error_key, "system-error");
+void
+scm_syserror (subr)
+ char *subr;
{
- SCM_ASSERT (SCM_NIMP (arg) && SCM_STRINGP (arg), arg, SCM_ARG1, s_perror);
- err_head (SCM_CHARS (arg));
- return SCM_UNSPECIFIED;
+ scm_error (scm_system_error_key,
+ subr,
+ "%s",
+ scm_listify (scm_makfrom0str (strerror (errno)),
+ SCM_UNDEFINED),
+ scm_listify (SCM_MAKINUM (errno), SCM_UNDEFINED));
}
+void
+scm_syserror_msg (subr, message, args, eno)
+ char *subr;
+ char *message;
+ SCM args;
+ int eno;
+{
+ scm_error (scm_system_error_key,
+ subr,
+ message,
+ args,
+ scm_listify (SCM_MAKINUM (eno), SCM_UNDEFINED));
+}
-#ifdef __STDC__
-void
-scm_everr (SCM exp, SCM env, SCM arg, char *pos, char *s_subr)
+void
+scm_sysmissing (subr)
+ char *subr;
+{
+#ifdef ENOSYS
+ scm_error (scm_system_error_key,
+ subr,
+ "%s",
+ scm_listify (scm_makfrom0str (strerror (ENOSYS)), SCM_UNDEFINED),
+ scm_listify (SCM_MAKINUM (ENOSYS), SCM_UNDEFINED));
#else
-void
-scm_everr (exp, env, arg, pos, s_subr)
- SCM exp;
- SCM env;
- SCM arg;
- char *pos;
- char *s_subr;
+ scm_error (scm_system_error_key,
+ subr,
+ "Missing function",
+ SCM_BOOL_F,
+ scm_listify (SCM_MAKINUM (0), SCM_UNDEFINED));
#endif
+}
+
+SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow");
+void
+scm_num_overflow (subr)
+ char *subr;
{
- SCM desc;
- SCM args;
-
- if ((~0x1fL) & (long) pos)
- desc = scm_makfrom0str (pos);
- else
- desc = SCM_MAKINUM ((long)pos);
-
- {
- SCM sym;
- if (!s_subr || !*s_subr)
- sym = SCM_BOOL_F;
- else
- sym = SCM_CAR (scm_intern0 (s_subr));
- args = scm_listify (desc, sym, arg, SCM_UNDEFINED);
- }
-
- /* (throw (quote %%system-error) <desc> <proc-name> arg)
- *
- * <desc> is a string or an integer (see %%system-errors).
- * <proc-name> is a symbol or #f in some annoying cases (e.g. cddr).
- */
-
- scm_ithrow (system_error_sym, args, 1);
-
- /* No return, but just in case: */
+ scm_error (scm_num_overflow_key,
+ subr,
+ "Numerical overflow",
+ SCM_BOOL_F,
+ SCM_BOOL_F);
+}
- write (2, "unhandled system error", sizeof ("unhandled system error") - 1);
- exit (1);
+SCM_SYMBOL (scm_out_of_range_key, "out-of-range");
+void
+scm_out_of_range (subr, bad_value)
+ char *subr;
+ SCM bad_value;
+{
+ scm_error (scm_out_of_range_key,
+ subr,
+ "Argument out of range: %S",
+ scm_listify (bad_value, SCM_UNDEFINED),
+ SCM_BOOL_F);
}
-#ifdef __STDC__
-SCM
-scm_wta (SCM arg, char *pos, char *s_subr)
-#else
-SCM
-scm_wta (arg, pos, s_subr)
- SCM arg;
- char *pos;
- char *s_subr;
-#endif
+SCM_SYMBOL (scm_args_number_key, "wrong-number-of-args");
+void
+scm_wrong_num_args (proc)
+ SCM proc;
{
- scm_everr (SCM_UNDEFINED, SCM_EOL, arg, pos, s_subr);
- return SCM_UNSPECIFIED;
+ scm_error (scm_args_number_key,
+ NULL,
+ "Wrong number of arguments to %s",
+ scm_listify (proc, SCM_UNDEFINED),
+ SCM_BOOL_F);
}
-void (*scm_error_callback) () = 0;
+SCM_SYMBOL (scm_arg_type_key, "wrong-type-arg");
+void
+scm_wrong_type_arg (subr, pos, bad_value)
+ char *subr;
+ int pos;
+ SCM bad_value;
+{
+ scm_error (scm_arg_type_key,
+ subr,
+ (pos == 0) ? "Wrong type argument: %S"
+ : "Wrong type argument in position %s: %S",
+ (pos == 0) ? scm_listify (bad_value, SCM_UNDEFINED)
+ : scm_listify (SCM_MAKINUM (pos), bad_value, SCM_UNDEFINED),
+ SCM_BOOL_F);
+}
+SCM_SYMBOL (scm_memory_alloc_key, "memory-allocation-error");
void
-scm_error (key, subr, message, args, rest)
- SCM key;
+scm_memory_error (subr)
+ char *subr;
+{
+ scm_error (scm_memory_alloc_key,
+ subr,
+ "Memory allocation error",
+ SCM_BOOL_F,
+ SCM_BOOL_F);
+}
+
+SCM_SYMBOL (scm_misc_error_key, "misc-error");
+void
+scm_misc_error (subr, message, args)
char *subr;
char *message;
SCM args;
- SCM rest;
{
- SCM arg_list;
- if (scm_error_callback)
- (*scm_error_callback) (key, subr, message, args, rest);
+ scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F);
+}
- arg_list = scm_listify (scm_makfrom0str (subr),
- scm_makfrom0str (message),
- args,
- rest,
- SCM_UNDEFINED);
- scm_ithrow (key, arg_list, 1);
-
- /* No return, but just in case: */
+/* implements the SCM_ASSERT interface. */
+SCM
+scm_wta (arg, pos, s_subr)
+ SCM arg;
+ char *pos;
+ char *s_subr;
+{
+ if (!s_subr || !*s_subr)
+ s_subr = NULL;
+ if ((~0x1fL) & (long) pos)
+ {
+ /* error string supplied. */
+ scm_misc_error (s_subr, pos, SCM_EOL);
+ }
+ else
+ {
+ /* numerical error code. */
+ int error = (long) pos;
- write (2, "unhandled system error", sizeof ("unhandled system error") - 1);
- exit (1);
+ switch (error)
+ {
+ case SCM_ARGn:
+ scm_wrong_type_arg (s_subr, 0, arg);
+ case SCM_ARG1:
+ scm_wrong_type_arg (s_subr, 1, arg);
+ case SCM_ARG2:
+ scm_wrong_type_arg (s_subr, 2, arg);
+ case SCM_ARG3:
+ scm_wrong_type_arg (s_subr, 3, arg);
+ case SCM_ARG4:
+ scm_wrong_type_arg (s_subr, 4, arg);
+ case SCM_ARG5:
+ scm_wrong_type_arg (s_subr, 5, arg);
+ case SCM_WNA:
+ scm_wrong_num_args (arg);
+ case SCM_OUTOFRANGE:
+ scm_out_of_range (s_subr, arg);
+ case SCM_NALLOC:
+ scm_memory_error (s_subr);
+ default:
+ /* this shouldn't happen. */
+ scm_misc_error (s_subr, "Unknown error", SCM_EOL);
+ }
+ }
+ return SCM_UNSPECIFIED;
}
-#ifdef __STDC__
-void
-scm_init_error (void)
-#else
+/* obsolete interface: scm_everr (exp, env, arg, pos, s_subr)
+ was equivalent to scm_wta (arg, pos, s_subr) */
+
void
scm_init_error ()
-#endif
{
- system_error_sym = scm_permanent_object (SCM_CAR (scm_intern0 ("%%system-error")));
+#include "cpp_err_symbols.c"
#include "error.x"
}
HCoop / bpt / guile.git / blobdiff