-/* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,1998,2000,2001 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
* 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. */
+
+/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
+ gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
+
\f
#include <stdio.h>
-#include "_scm.h"
-#include "pairs.h"
-#include "genio.h"
-#include "throw.h"
+#include <errno.h>
+
+#include "libguile/_scm.h"
+#include "libguile/pairs.h"
+#include "libguile/strings.h"
+#include "libguile/throw.h"
-#include "error.h"
+#include "libguile/validate.h"
+#include "libguile/error.h"
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
+
+/* For Windows... */
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif
\f
\f
*/
-extern int errno;
-
-void (*scm_error_callback) () = 0;
-
/* All errors should pass through here. */
void
-scm_error (key, subr, message, args, rest)
- SCM key;
- char *subr;
- char *message;
- SCM args;
- SCM rest;
+scm_error (SCM key, const char *subr, const char *message, SCM args, SCM rest)
{
SCM arg_list;
- if (scm_error_callback)
- (*scm_error_callback) (key, subr, message, args, rest);
-
- arg_list = scm_listify (subr ? scm_makfrom0str (subr) : SCM_BOOL_F,
- message ? scm_makfrom0str (message) : SCM_BOOL_F,
- args,
- rest,
- SCM_UNDEFINED);
+ if (scm_gc_running_p)
+ {
+ /* The error occured during GC --- abort */
+ fprintf (stderr, "Error in %s during GC: %s\n",
+ subr ? subr : "unknown function",
+ message ? message : "<empty message>");
+ abort ();
+ }
+ arg_list = scm_list_4 (subr ? scm_makfrom0str (subr) : SCM_BOOL_F,
+ message ? scm_makfrom0str (message) : SCM_BOOL_F,
+ args,
+ rest);
scm_ithrow (key, arg_list, 1);
/* No return, but just in case: */
+ {
+ const char msg[] = "guile:scm_error:scm_ithrow returned!\n";
- write (2, "unhandled system error\n",
- sizeof ("unhandled system error\n") - 1);
+ write (2, msg, (sizeof msg) - 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_DEFINE (scm_error_scm, "scm-error", 5, 0, 0,
+ (SCM key, SCM subr, SCM message, SCM args, SCM data),
+ "Raise an error with key @var{key}. @var{subr} can be a string\n"
+ "naming the procedure associated with the error, or @code{#f}.\n"
+ "@var{message} is the error message string, possibly containing\n"
+ "@code{~S} and @code{~A} escapes. When an error is reported,\n"
+ "these are replaced by formatting the corresponding members of\n"
+ "@var{args}: @code{~A} (was @code{%s} in older versions of\n"
+ "Guile) formats using @code{display} and @code{~S} (was\n"
+ "@code{%S}) formats using @code{write}. @var{data} is a list or\n"
+ "@code{#f} depending on @var{key}: if @var{key} is\n"
+ "@code{system-error} then it should be a list containing the\n"
+ "Unix @code{errno} value; If @var{key} is @code{signal} then it\n"
+ "should be a list containing the Unix signal number; otherwise\n"
+ "it will usually be @code{#f}.")
+#define FUNC_NAME s_scm_error_scm
{
- 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_error (key,
- (SCM_FALSEP (subr)) ? NULL : SCM_ROCHARS (subr),
- (SCM_FALSEP (message)) ? NULL : SCM_ROCHARS (message),
- args,
- rest);
+ char *szSubr;
+ char *szMessage;
+
+ SCM_VALIDATE_SYMBOL (1, key);
+
+ if (SCM_FALSEP (subr))
+ {
+ szSubr = NULL;
+ }
+ else if (SCM_SYMBOLP (subr))
+ {
+ szSubr = SCM_SYMBOL_CHARS (subr);
+ }
+ else
+ {
+ SCM_VALIDATE_STRING (2, subr);
+ SCM_STRING_COERCE_0TERMINATION_X (subr);
+ szSubr = SCM_STRING_CHARS (subr);
+ }
+
+ if (SCM_FALSEP (message))
+ {
+ szMessage = NULL;
+ }
+ else
+ {
+ SCM_VALIDATE_STRING (2, message);
+ SCM_STRING_COERCE_0TERMINATION_X (message);
+ szMessage = SCM_STRING_CHARS (message);
+ }
+
+ scm_error (key, szSubr, szMessage, args, data);
/* not reached. */
}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_strerror, "strerror", 1, 0, 0,
+ (SCM err),
+ "Return the Unix error message corresponding to @var{err}, which\n"
+ "must be an integer value.")
+#define FUNC_NAME s_scm_strerror
+{
+ SCM_VALIDATE_INUM (1,err);
+ return scm_makfrom0str (strerror (SCM_INUM (err)));
+}
+#undef FUNC_NAME
SCM_SYMBOL (scm_system_error_key, "system-error");
void
-scm_syserror (subr)
- char *subr;
+scm_syserror (const char *subr)
{
+ int save_errno = errno;
+
scm_error (scm_system_error_key,
subr,
- "%s",
- scm_listify (scm_makfrom0str (strerror (errno)),
- SCM_UNDEFINED),
- scm_listify (SCM_MAKINUM (errno), SCM_UNDEFINED));
+ "~A",
+ scm_cons (scm_makfrom0str (strerror (save_errno)), SCM_EOL),
+ scm_cons (SCM_MAKINUM (save_errno), SCM_EOL));
}
void
-scm_syserror_msg (subr, message, args, eno)
- char *subr;
- char *message;
- SCM args;
- int eno;
+scm_syserror_msg (const char *subr, const char *message, SCM args, int eno)
{
scm_error (scm_system_error_key,
subr,
message,
args,
- scm_listify (SCM_MAKINUM (eno), SCM_UNDEFINED));
+ scm_cons (SCM_MAKINUM (eno), SCM_EOL));
}
+SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow");
void
-scm_sysmissing (subr)
- char *subr;
+scm_num_overflow (const 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
- scm_error (scm_system_error_key,
+ scm_error (scm_num_overflow_key,
subr,
- "Missing function",
+ "Numerical overflow",
SCM_BOOL_F,
- scm_listify (SCM_MAKINUM (0), SCM_UNDEFINED));
-#endif
+ SCM_BOOL_F);
}
-SCM_SYMBOL (scm_num_overflow_key, "numerical-overflow");
+SCM_SYMBOL (scm_out_of_range_key, "out-of-range");
void
-scm_num_overflow (subr)
- char *subr;
+scm_out_of_range (const char *subr, SCM bad_value)
{
- scm_error (scm_num_overflow_key,
+ scm_error (scm_out_of_range_key,
subr,
- "Numerical overflow",
- SCM_BOOL_F,
+ "Argument out of range: ~S",
+ scm_list_1 (bad_value),
SCM_BOOL_F);
}
-SCM_SYMBOL (scm_out_of_range_key, "out-of-range");
void
-scm_out_of_range (subr, bad_value)
- char *subr;
- SCM bad_value;
+scm_out_of_range_pos (const char *subr, SCM bad_value, SCM pos)
{
scm_error (scm_out_of_range_key,
subr,
- "Argument out of range: %S",
- scm_listify (bad_value, SCM_UNDEFINED),
+ "Argument ~S out of range: ~S",
+ scm_list_2 (pos,bad_value),
SCM_BOOL_F);
}
+
SCM_SYMBOL (scm_args_number_key, "wrong-number-of-args");
void
-scm_wrong_num_args (proc)
- SCM proc;
+scm_wrong_num_args (SCM proc)
+{
+ scm_error (scm_args_number_key,
+ NULL,
+ "Wrong number of arguments to ~A",
+ scm_list_1 (proc),
+ SCM_BOOL_F);
+}
+
+
+void
+scm_error_num_args_subr (const char *subr)
{
scm_error (scm_args_number_key,
NULL,
- "Wrong number of arguments to %s",
- scm_listify (proc, SCM_UNDEFINED),
+ "Wrong number of arguments to ~A",
+ scm_list_1 (scm_makfrom0str (subr)),
SCM_BOOL_F);
}
+
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_wrong_type_arg (const 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),
+ (pos == 0) ? "Wrong type argument: ~S"
+ : "Wrong type argument in position ~A: ~S",
+ (pos == 0) ? scm_list_1 (bad_value)
+ : scm_list_2 (SCM_MAKINUM (pos), bad_value),
SCM_BOOL_F);
}
+void
+scm_wrong_type_arg_msg (const char *subr, int pos, SCM bad_value, const char *szMessage)
+{
+ SCM msg = scm_makfrom0str(szMessage);
+ if (pos == 0) {
+ scm_error (scm_arg_type_key,
+ subr, "Wrong type argument (expecting ~A): ~S",
+ scm_list_2 (msg, bad_value),
+ SCM_BOOL_F);
+ } else {
+ scm_error (scm_arg_type_key,
+ subr,
+ "Wrong type argument in position ~A (expecting ~A): ~S",
+ scm_list_3 (SCM_MAKINUM (pos), msg, bad_value),
+ SCM_BOOL_F);
+ }
+}
+
+
SCM_SYMBOL (scm_memory_alloc_key, "memory-allocation-error");
void
-scm_memory_error (subr)
- char *subr;
+scm_memory_error (const char *subr)
{
scm_error (scm_memory_alloc_key,
subr,
SCM_SYMBOL (scm_misc_error_key, "misc-error");
void
-scm_misc_error (subr, message, args)
- char *subr;
- char *message;
- SCM args;
+scm_misc_error (const char *subr, const char *message, SCM args)
{
scm_error (scm_misc_error_key, subr, message, args, SCM_BOOL_F);
}
-/* implements the SCM_ASSERT interface. */
+#if (SCM_DEBUG_DEPRECATED == 0)
+
SCM
-scm_wta (arg, pos, s_subr)
- SCM arg;
- char *pos;
- char *s_subr;
+scm_wta (SCM arg, const char *pos, const 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_BOOL_F);
+ scm_misc_error (s_subr, pos, scm_list_1 (arg));
}
else
{
/* numerical error code. */
- int error = (long) pos;
+ int error = (int) pos;
switch (error)
{
scm_wrong_type_arg (s_subr, 4, arg);
case SCM_ARG5:
scm_wrong_type_arg (s_subr, 5, arg);
+ case SCM_ARG6:
+ scm_wrong_type_arg (s_subr, 6, arg);
+ case SCM_ARG7:
+ scm_wrong_type_arg (s_subr, 7, arg);
case SCM_WNA:
scm_wrong_num_args (arg);
case SCM_OUTOFRANGE:
scm_memory_error (s_subr);
default:
/* this shouldn't happen. */
- scm_misc_error (s_subr, "Unknown error", SCM_BOOL_F);
+ scm_misc_error (s_subr, "Unknown error", SCM_EOL);
}
}
return SCM_UNSPECIFIED;
}
-/* obsolete interface: scm_everr (exp, env, arg, pos, s_subr)
- was equivalent to scm_wta (arg, pos, s_subr) */
+#endif /* SCM_DEBUG_DEPRECATED == 0 */
void
scm_init_error ()
{
-#include "cpp_err_symbols.c"
-#include "error.x"
+#include "libguile/cpp_err_symbols.c"
+#ifndef SCM_MAGIC_SNARFER
+#include "libguile/error.x"
+#endif
}
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff