#include <config.h>
+
+#ifdef STDC_HEADERS
+#include <stdlib.h>
+#endif
+
#include "lisp.h"
#include "blockinput.h"
Lisp_Object funcall_lambda ();
extern Lisp_Object ml_apply (); /* Apply a mocklisp function to unevaluated argument list */
+void
init_eval_once ()
{
specpdl_size = 50;
Vrun_hooks = Qnil;
}
+void
init_eval ()
{
specpdl_ptr = specpdl;
return apply1 (Vdebugger, arg);
}
+void
do_debug_on_call (code)
Lisp_Object code;
{
DEFUN ("defconst", Fdefconst, Sdefconst, 2, UNEVALLED, 0,
"(defconst SYMBOL INITVALUE DOCSTRING): define SYMBOL as a constant variable.\n\
-The intent is that programs do not change this value, but users may.\n\
+The intent is that neither programs nor users should ever change this value.\n\
Always sets the value of SYMBOL to the result of evalling INITVALUE.\n\
If SYMBOL is buffer-local, its default value is what is set;\n\
buffer-local values are not affected.\n\
-DOCSTRING is optional.\n\
-If DOCSTRING starts with *, this variable is identified as a user option.\n\
- This means that M-x set-variable and M-x edit-options recognize it.\n\n\
-Note: do not use `defconst' for user options in libraries that are not\n\
-normally loaded, since it is useful for users to be able to specify\n\
-their own values for such variables before loading the library.\n\
-Since `defconst' unconditionally assigns the variable,\n\
-it would override the user's choice.")
+DOCSTRING is optional.")
(args)
Lisp_Object args;
{
\f
DEFUN ("catch", Fcatch, Scatch, 1, UNEVALLED, 0,
"(catch TAG BODY...): eval BODY allowing nonlocal exits using `throw'.\n\
-TAG is evalled to get the tag to use. Then the BODY is executed.\n\
+TAG is evalled to get the tag to use; it must not be nil.\n\
+\n\
+Then the BODY is executed.\n\
Within BODY, (throw TAG) with same tag exits BODY and exits this `catch'.\n\
If no throw happens, `catch' returns the value of the last BODY form.\n\
If a throw happens, it specifies the value to return from `catch'.")
(error_symbol, data)
Lisp_Object error_symbol, data;
{
+ /* When memory is full, ERROR-SYMBOL is nil,
+ and DATA is (REAL-ERROR-SYMBOL . REAL-DATA). */
register struct handler *allhandlers = handlerlist;
Lisp_Object conditions;
extern int gc_in_progress;
if (gc_in_progress || waiting_for_input)
abort ();
-#ifdef HAVE_WINDOW_SYSTEM
TOTALLY_UNBLOCK_INPUT;
-#endif
if (NILP (error_symbol))
real_error_symbol = Fcar (data);
data = Fcons (error_symbol, data);
string = Ferror_message_string (data);
- fatal (XSTRING (string)->data, 0, 0);
+ fatal ("%s", XSTRING (string)->data, 0);
}
/* Return nonzero iff LIST is a non-nil atom or
/* Value of Qlambda means we have called debugger and user has continued.
There are two ways to pass SIG and DATA:
- - SIG is the error symbol, and DATA is the rest of the data.
+ = SIG is the error symbol, and DATA is the rest of the data.
= SIG is nil, and DATA is (SYMBOL . REST-OF-DATA).
+ This is for memory-full errors only.
Store value returned from debugger into *DEBUGGER_VALUE_PTR. */
int count = specpdl_ptr - specpdl;
int debugger_called = 0;
Lisp_Object sig_symbol, combined_data;
+ /* This is set to 1 if we are handling a memory-full error,
+ because these must not run the debugger.
+ (There is no room in memory to do that!) */
+ int no_debugger = 0;
if (NILP (sig))
{
combined_data = data;
sig_symbol = Fcar (data);
+ no_debugger = 1;
}
else
{
}
if (wants_debugger (Vstack_trace_on_error, conditions))
- internal_with_output_to_temp_buffer ("*Backtrace*", Fbacktrace, Qnil);
- if ((EQ (sig_symbol, Qquit)
- ? debug_on_quit
- : wants_debugger (Vdebug_on_error, conditions))
+ {
+#ifdef __STDC__
+ internal_with_output_to_temp_buffer ("*Backtrace*",
+ (Lisp_Object (*) (Lisp_Object)) Fbacktrace,
+ Qnil);
+#else
+ internal_with_output_to_temp_buffer ("*Backtrace*",
+ Fbacktrace, Qnil);
+#endif
+ }
+ if (! no_debugger
+ && (EQ (sig_symbol, Qquit)
+ ? debug_on_quit
+ : wants_debugger (Vdebug_on_error, conditions))
&& ! skip_debugger (conditions, combined_data)
&& when_entered_debugger < num_nonmacro_input_events)
{
while (1)
{
- int used = doprnt (buf, size, m, m + mlen, 3, args);
+ int used = doprnt (buffer, size, m, m + mlen, 3, args);
if (used < size)
break;
size *= 2;
}
}
- string = build_string (buf);
+ string = build_string (buffer);
if (allocated)
free (buffer);
FUNNAME is the symbol which is the function's name.
FUNDEF is the autoload definition (a list). */
+void
do_autoload (fundef, funname)
Lisp_Object fundef, funname;
{
CHECK_SYMBOL (funname, 0);
GCPRO3 (fun, funname, fundef);
- /* Value saved here is to be restored into Vautoload_queue */
+ /* Preserve the match data. */
+ record_unwind_protect (Fset_match_data, Fmatch_data (Qnil, Qnil));
+
+ /* Value saved here is to be restored into Vautoload_queue. */
record_unwind_protect (un_autoload, Vautoload_queue);
Vautoload_queue = Qt;
- Fload (Fcar (Fcdr (fundef)), Qnil, noninteractive ? Qt : Qnil, Qnil);
+ Fload (Fcar (Fcdr (fundef)), Qnil, noninteractive ? Qt : Qnil, Qnil, Qt);
- /* Save the old autoloads, in case we ever do an unload. */
+ /* Save the old autoloads, in case we ever do an unload. */
queue = Vautoload_queue;
while (CONSP (queue))
{
/* Note: This test is subtle. The cdr of an autoload-queue entry
may be an atom if the autoload entry was generated by a defalias
- or fset. */
+ or fset. */
if (CONSP (second))
Fput (first, Qautoload, (Fcdr (second)));
if (SUBRP (fun))
{
Lisp_Object numargs;
- Lisp_Object argvals[7];
+ Lisp_Object argvals[8];
Lisp_Object args_left;
register int i, maxargs;
argvals[6]);
goto done;
+ case 8:
+ val = (*XSUBR (fun)->function) (argvals[0], argvals[1], argvals[2],
+ argvals[3], argvals[4], argvals[5],
+ argvals[6], argvals[7]);
+ goto done;
+
default:
/* Someone has created a subr that takes more arguments than
is supported by this code. We need to either rewrite the
internal_args[6]);
goto done;
+ case 8:
+ val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1],
+ internal_args[2], internal_args[3],
+ internal_args[4], internal_args[5],
+ internal_args[6], internal_args[7]);
+ goto done;
+
default:
- /* If a subr takes more than 6 arguments without using MANY
+ /* If a subr takes more than 8 arguments without using MANY
or UNEVALLED, we need to extend this function to support it.
Until this is done, there is no way to call the function. */
abort ();
void
record_unwind_protect (function, arg)
- Lisp_Object (*function)();
+ Lisp_Object (*function) P_ ((Lisp_Object));
Lisp_Object arg;
{
if (specpdl_ptr == specpdl + specpdl_size)
}
}
\f
+void
syms_of_eval ()
{
DEFVAR_INT ("max-specpdl-size", &max_specpdl_size,
HCoop / bpt / emacs.git / blobdiff