/* Evaluator for GNU Emacs Lisp interpreter.
- Copyright (C) 1985, 86, 87, 93, 94, 95, 99, 2000, 2001
- Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1999, 2000, 2001,
+ 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include <config.h>
int lisp_eval_depth;
int pdlcount;
int poll_suppress_count;
+ int interrupt_input_blocked;
struct byte_stack *byte_stack;
};
Lisp_Object Qautoload, Qmacro, Qexit, Qinteractive, Qcommandp, Qdefun;
Lisp_Object Qinhibit_quit, Vinhibit_quit, Vquit_flag;
-Lisp_Object Qmocklisp_arguments, Vmocklisp_arguments, Qmocklisp;
Lisp_Object Qand_rest, Qand_optional;
Lisp_Object Qdebug_on_error;
+Lisp_Object Qdeclare;
/* This holds either the symbol `run-hooks' or nil.
It is nil at an early stage of startup, and when Emacs
/* Non-nil means record all fset's and provide's, to be undone
if the file being autoloaded is not fully loaded.
They are recorded by being consed onto the front of Vautoload_queue:
- (FUN . ODEF) for a defun, (OFEATURES . nil) for a provide. */
+ (FUN . ODEF) for a defun, (0 . OFEATURES) for a provide. */
Lisp_Object Vautoload_queue;
/* Maximum size allowed for specpdl allocation */
-int max_specpdl_size;
+EMACS_INT max_specpdl_size;
/* Depth in Lisp evaluations and function calls. */
/* Maximum allowed depth in Lisp evaluations and function calls. */
-int max_lisp_eval_depth;
+EMACS_INT max_lisp_eval_depth;
/* Nonzero means enter debugger before next function call */
int debug_on_next_call;
-/* Non-zero means debuffer may continue. This is zero when the
+/* Non-zero means debugger may continue. This is zero when the
debugger is called during redisplay, where it might not be safe to
continue the interrupted redisplay. */
Lisp_Object Vdebug_on_error;
/* List of conditions and regexps specifying error messages which
- do not enter the debugger even if Vdebug_on_errors says they should. */
+ do not enter the debugger even if Vdebug_on_error says they should. */
Lisp_Object Vdebug_ignored_errors;
int handling_signal;
-void specbind (), record_unwind_protect ();
+/* Function to process declarations in defmacro forms. */
-Lisp_Object run_hook_with_args ();
+Lisp_Object Vmacro_declaration_function;
-Lisp_Object funcall_lambda ();
-extern Lisp_Object ml_apply (); /* Apply a mocklisp function to unevaluated argument list */
+
+static Lisp_Object funcall_lambda P_ ((Lisp_Object, int, Lisp_Object*));
void
init_eval_once ()
specpdl_size = 50;
specpdl = (struct specbinding *) xmalloc (specpdl_size * sizeof (struct specbinding));
specpdl_ptr = specpdl;
- max_specpdl_size = 600;
+ /* Don't forget to update docs (lispref node "Local Variables"). */
+ max_specpdl_size = 1000;
max_lisp_eval_depth = 300;
Vrun_hooks = Qnil;
when_entered_debugger = -1;
}
+/* unwind-protect function used by call_debugger. */
+
+static Lisp_Object
+restore_stack_limits (data)
+ Lisp_Object data;
+{
+ max_specpdl_size = XINT (XCAR (data));
+ max_lisp_eval_depth = XINT (XCDR (data));
+ return Qnil;
+}
+
+/* Call the Lisp debugger, giving it argument ARG. */
+
Lisp_Object
call_debugger (arg)
Lisp_Object arg;
{
int debug_while_redisplaying;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
Lisp_Object val;
-
- if (lisp_eval_depth + 20 > max_lisp_eval_depth)
- max_lisp_eval_depth = lisp_eval_depth + 20;
-
- if (specpdl_size + 40 > max_specpdl_size)
- max_specpdl_size = specpdl_size + 40;
-
+ int old_max = max_specpdl_size;
+
+ /* Temporarily bump up the stack limits,
+ so the debugger won't run out of stack. */
+
+ max_specpdl_size += 1;
+ record_unwind_protect (restore_stack_limits,
+ Fcons (make_number (old_max),
+ make_number (max_lisp_eval_depth)));
+ max_specpdl_size = old_max;
+
+ if (lisp_eval_depth + 40 > max_lisp_eval_depth)
+ max_lisp_eval_depth = lisp_eval_depth + 40;
+
+ if (SPECPDL_INDEX () + 100 > max_specpdl_size)
+ max_specpdl_size = SPECPDL_INDEX () + 100;
+
#ifdef HAVE_X_WINDOWS
if (display_hourglass_p)
cancel_hourglass ();
specbind (intern ("debugger-may-continue"),
debug_while_redisplaying ? Qnil : Qt);
specbind (Qinhibit_redisplay, Qnil);
+ specbind (Qdebug_on_error, Qnil);
#if 0 /* Binding this prevents execution of Lisp code during
redisplay, which necessarily leads to display problems. */
specbind (Qinhibit_eval_during_redisplay, Qt);
#endif
-
+
val = apply1 (Vdebugger, arg);
/* Interrupting redisplay and resuming it later is not safe under
all circumstances. So, when the debugger returns, abort the
- interupted redisplay by going back to the top-level. */
+ interrupted redisplay by going back to the top-level. */
if (debug_while_redisplaying)
Ftop_level ();
The definition of `For' shows what you have to do. */
DEFUN ("or", For, Sor, 0, UNEVALLED, 0,
- "Eval args until one of them yields non-nil, then return that value.\n\
-The remaining args are not evalled at all.\n\
-If all args return nil, return nil.\n\
-usage: (or CONDITIONS ...)")
- (args)
+ doc: /* Eval args until one of them yields non-nil, then return that value.
+The remaining args are not evalled at all.
+If all args return nil, return nil.
+usage: (or CONDITIONS ...) */)
+ (args)
Lisp_Object args;
{
- register Lisp_Object val;
- Lisp_Object args_left;
+ register Lisp_Object val = Qnil;
struct gcpro gcpro1;
- if (NILP(args))
- return Qnil;
-
- args_left = args;
- GCPRO1 (args_left);
+ GCPRO1 (args);
- do
+ while (CONSP (args))
{
- val = Feval (Fcar (args_left));
+ val = Feval (XCAR (args));
if (!NILP (val))
break;
- args_left = Fcdr (args_left);
+ args = XCDR (args);
}
- while (!NILP(args_left));
UNGCPRO;
return val;
}
DEFUN ("and", Fand, Sand, 0, UNEVALLED, 0,
- "Eval args until one of them yields nil, then return nil.\n\
-The remaining args are not evalled at all.\n\
-If no arg yields nil, return the last arg's value.\n\
-usage: (and CONDITIONS ...)")
- (args)
+ doc: /* Eval args until one of them yields nil, then return nil.
+The remaining args are not evalled at all.
+If no arg yields nil, return the last arg's value.
+usage: (and CONDITIONS ...) */)
+ (args)
Lisp_Object args;
{
- register Lisp_Object val;
- Lisp_Object args_left;
+ register Lisp_Object val = Qt;
struct gcpro gcpro1;
- if (NILP(args))
- return Qt;
-
- args_left = args;
- GCPRO1 (args_left);
+ GCPRO1 (args);
- do
+ while (CONSP (args))
{
- val = Feval (Fcar (args_left));
+ val = Feval (XCAR (args));
if (NILP (val))
break;
- args_left = Fcdr (args_left);
+ args = XCDR (args);
}
- while (!NILP(args_left));
UNGCPRO;
return val;
}
DEFUN ("if", Fif, Sif, 2, UNEVALLED, 0,
- "If COND yields non-nil, do THEN, else do ELSE...\n\
-Returns the value of THEN or the value of the last of the ELSE's.\n\
-THEN must be one expression, but ELSE... can be zero or more expressions.\n\
-If COND yields nil, and there are no ELSE's, the value is nil.\n\
-usage: (if COND THEN ELSE...)")
- (args)
+ doc: /* If COND yields non-nil, do THEN, else do ELSE...
+Returns the value of THEN or the value of the last of the ELSE's.
+THEN must be one expression, but ELSE... can be zero or more expressions.
+If COND yields nil, and there are no ELSE's, the value is nil.
+usage: (if COND THEN ELSE...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object cond;
}
DEFUN ("cond", Fcond, Scond, 0, UNEVALLED, 0,
- "Try each clause until one succeeds.\n\
-Each clause looks like (CONDITION BODY...). CONDITION is evaluated\n\
-and, if the value is non-nil, this clause succeeds:\n\
-then the expressions in BODY are evaluated and the last one's\n\
-value is the value of the cond-form.\n\
-If no clause succeeds, cond returns nil.\n\
-If a clause has one element, as in (CONDITION),\n\
-CONDITION's value if non-nil is returned from the cond-form.\n\
-usage: (cond CLAUSES...)")
- (args)
+ doc: /* Try each clause until one succeeds.
+Each clause looks like (CONDITION BODY...). CONDITION is evaluated
+and, if the value is non-nil, this clause succeeds:
+then the expressions in BODY are evaluated and the last one's
+value is the value of the cond-form.
+If no clause succeeds, cond returns nil.
+If a clause has one element, as in (CONDITION),
+CONDITION's value if non-nil is returned from the cond-form.
+usage: (cond CLAUSES...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object clause, val;
}
DEFUN ("progn", Fprogn, Sprogn, 0, UNEVALLED, 0,
- "Eval BODY forms sequentially and return value of last one.\n\
-usage: (progn BODY ...)")
- (args)
+ doc: /* Eval BODY forms sequentially and return value of last one.
+usage: (progn BODY ...) */)
+ (args)
Lisp_Object args;
{
- register Lisp_Object val, tem;
- Lisp_Object args_left;
+ register Lisp_Object val = Qnil;
struct gcpro gcpro1;
- /* In Mocklisp code, symbols at the front of the progn arglist
- are to be bound to zero. */
- if (!EQ (Vmocklisp_arguments, Qt))
- {
- val = make_number (0);
- while (!NILP (args) && (tem = Fcar (args), SYMBOLP (tem)))
- {
- QUIT;
- specbind (tem, val), args = Fcdr (args);
- }
- }
-
- if (NILP(args))
- return Qnil;
-
- args_left = args;
- GCPRO1 (args_left);
+ GCPRO1 (args);
- do
+ while (CONSP (args))
{
- val = Feval (Fcar (args_left));
- args_left = Fcdr (args_left);
+ val = Feval (XCAR (args));
+ args = XCDR (args);
}
- while (!NILP(args_left));
UNGCPRO;
return val;
}
DEFUN ("prog1", Fprog1, Sprog1, 1, UNEVALLED, 0,
- "Eval FIRST and BODY sequentially; value from FIRST.\n\
-The value of FIRST is saved during the evaluation of the remaining args,\n\
-whose values are discarded.\n\
-usage: (prog1 FIRST BODY...)")
- (args)
+ doc: /* Eval FIRST and BODY sequentially; value from FIRST.
+The value of FIRST is saved during the evaluation of the remaining args,
+whose values are discarded.
+usage: (prog1 FIRST BODY...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object val;
}
DEFUN ("prog2", Fprog2, Sprog2, 2, UNEVALLED, 0,
- "Eval X, Y and BODY sequentially; value from Y.\n\
-The value of Y is saved during the evaluation of the remaining args,\n\
-whose values are discarded.\n\
-usage: (prog2 X Y BODY...)")
- (args)
+ doc: /* Eval FORM1, FORM2 and BODY sequentially; value from FORM2.
+The value of FORM2 is saved during the evaluation of the
+remaining args, whose values are discarded.
+usage: (prog2 FORM1 FORM2 BODY...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object val;
}
DEFUN ("setq", Fsetq, Ssetq, 0, UNEVALLED, 0,
- "Set each SYM to the value of its VAL.\n\
-The symbols SYM are variables; they are literal (not evaluated).\n\
-The values VAL are expressions; they are evaluated.\n\
-Thus, (setq x (1+ y)) sets `x' to the value of `(1+ y)'.\n\
-The second VAL is not computed until after the first SYM is set, and so on;\n\
-each VAL can use the new value of variables set earlier in the `setq'.\n\
-The return value of the `setq' form is the value of the last VAL.\n\
-usage: (setq SYM VAL SYM VAL ...)")
- (args)
+ doc: /* Set each SYM to the value of its VAL.
+The symbols SYM are variables; they are literal (not evaluated).
+The values VAL are expressions; they are evaluated.
+Thus, (setq x (1+ y)) sets `x' to the value of `(1+ y)'.
+The second VAL is not computed until after the first SYM is set, and so on;
+each VAL can use the new value of variables set earlier in the `setq'.
+The return value of the `setq' form is the value of the last VAL.
+usage: (setq SYM VAL SYM VAL ...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object args_left;
UNGCPRO;
return val;
}
-
+
DEFUN ("quote", Fquote, Squote, 1, UNEVALLED, 0,
- "Return the argument, without evaluating it. `(quote x)' yields `x'.\n\
-usage: (quote ARG)")
- (args)
+ doc: /* Return the argument, without evaluating it. `(quote x)' yields `x'.
+usage: (quote ARG) */)
+ (args)
Lisp_Object args;
{
return Fcar (args);
}
-
+
DEFUN ("function", Ffunction, Sfunction, 1, UNEVALLED, 0,
- "Like `quote', but preferred for objects which are functions.\n\
-In byte compilation, `function' causes its argument to be compiled.\n\
-`quote' cannot do that.\n\
-usage: (function ARG)")
- (args)
+ doc: /* Like `quote', but preferred for objects which are functions.
+In byte compilation, `function' causes its argument to be compiled.
+`quote' cannot do that.
+usage: (function ARG) */)
+ (args)
Lisp_Object args;
{
return Fcar (args);
DEFUN ("interactive-p", Finteractive_p, Sinteractive_p, 0, 0, 0,
- "Return t if function in which this appears was called interactively.\n\
-This means that the function was called with call-interactively (which\n\
-includes being called as the binding of a key)\n\
-and input is currently coming from the keyboard (not in keyboard macro).")
- ()
+ doc: /* Return t if the function was run directly by user input.
+This means that the function was called with `call-interactively'
+\(which includes being called as the binding of a key)
+and input is currently coming from the keyboard (not in keyboard macro),
+and Emacs is not running in batch mode (`noninteractive' is nil).
+
+The only known proper use of `interactive-p' is in deciding whether to
+display a helpful message, or how to display it. If you're thinking
+of using it for any other purpose, it is quite likely that you're
+making a mistake. Think: what do you want to do when the command is
+called from a keyboard macro?
+
+If you want to test whether your function was called with
+`call-interactively', the way to do that is by adding an extra
+optional argument, and making the `interactive' spec specify non-nil
+unconditionally for that argument. (`p' is a good way to do this.) */)
+ ()
+{
+ return (INTERACTIVE && interactive_p (1)) ? Qt : Qnil;
+}
+
+
+DEFUN ("called-interactively-p", Fcalled_interactively_p, Scalled_interactively_p, 0, 0, 0,
+ doc: /* Return t if the function using this was called with `call-interactively'.
+This is used for implementing advice and other function-modifying
+features of Emacs.
+
+The cleanest way to test whether your function was called with
+`call-interactively' is by adding an extra optional argument,
+and making the `interactive' spec specify non-nil unconditionally
+for that argument. (`p' is a good way to do this.) */)
+ ()
{
return interactive_p (1) ? Qt : Qnil;
}
-/* Return 1 if function in which this appears was called
- interactively. This means that the function was called with
- call-interactively (which includes being called as the binding of
- a key) and input is currently coming from the keyboard (not in
- keyboard macro).
+/* Return 1 if function in which this appears was called using
+ call-interactively.
EXCLUDE_SUBRS_P non-zero means always return 0 if the function
called is a built-in. */
struct backtrace *btp;
Lisp_Object fun;
- if (!INTERACTIVE)
- return 0;
-
btp = backtrace_list;
/* If this isn't a byte-compiled function, there may be a frame at
the top for Finteractive_p. If so, skip it. */
- fun = Findirect_function (*btp->function);
- if (SUBRP (fun) && XSUBR (fun) == &Sinteractive_p)
+ fun = Findirect_function (*btp->function, Qnil);
+ if (SUBRP (fun) && (XSUBR (fun) == &Sinteractive_p
+ || XSUBR (fun) == &Scalled_interactively_p))
btp = btp->next;
/* If we're running an Emacs 18-style byte-compiled function, there
- may be a frame for Fbytecode. Now, given the strictest
- definition, this function isn't really being called
- interactively, but because that's the way Emacs 18 always builds
- byte-compiled functions, we'll accept it for now. */
- if (EQ (*btp->function, Qbytecode))
- btp = btp->next;
+ may be a frame for Fbytecode at the top level. In any version of
+ Emacs there can be Fbytecode frames for subexpressions evaluated
+ inside catch and condition-case. Skip past them.
- /* If this isn't a byte-compiled function, then we may now be
+ If this isn't a byte-compiled function, then we may now be
looking at several frames for special forms. Skip past them. */
- while (btp &&
- btp->nargs == UNEVALLED)
+ while (btp
+ && (EQ (*btp->function, Qbytecode)
+ || btp->nargs == UNEVALLED))
btp = btp->next;
/* btp now points at the frame of the innermost function that isn't
a special form, ignoring frames for Finteractive_p and/or
Fbytecode at the top. If this frame is for a built-in function
(such as load or eval-region) return nil. */
- fun = Findirect_function (*btp->function);
+ fun = Findirect_function (*btp->function, Qnil);
if (exclude_subrs_p && SUBRP (fun))
return 0;
-
+
/* btp points to the frame of a Lisp function that called interactive-p.
Return t if that function was called interactively. */
if (btp && btp->next && EQ (*btp->next->function, Qcall_interactively))
DEFUN ("defun", Fdefun, Sdefun, 2, UNEVALLED, 0,
- "Define NAME as a function.\n\
-The definition is (lambda ARGLIST [DOCSTRING] BODY...).\n\
-See also the function `interactive'.\n\
-usage: (defun NAME ARGLIST [DOCSTRING] BODY...)")
- (args)
+ doc: /* Define NAME as a function.
+The definition is (lambda ARGLIST [DOCSTRING] BODY...).
+See also the function `interactive'.
+usage: (defun NAME ARGLIST [DOCSTRING] BODY...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object fn_name;
register Lisp_Object defn;
fn_name = Fcar (args);
+ CHECK_SYMBOL (fn_name);
defn = Fcons (Qlambda, Fcdr (args));
if (!NILP (Vpurify_flag))
defn = Fpurecopy (defn);
+ if (CONSP (XSYMBOL (fn_name)->function)
+ && EQ (XCAR (XSYMBOL (fn_name)->function), Qautoload))
+ LOADHIST_ATTACH (Fcons (Qt, fn_name));
Ffset (fn_name, defn);
- LOADHIST_ATTACH (fn_name);
+ LOADHIST_ATTACH (Fcons (Qdefun, fn_name));
return fn_name;
}
DEFUN ("defmacro", Fdefmacro, Sdefmacro, 2, UNEVALLED, 0,
- "Define NAME as a macro.\n\
-The definition is (macro lambda ARGLIST [DOCSTRING] BODY...).\n\
-When the macro is called, as in (NAME ARGS...),\n\
-the function (lambda ARGLIST BODY...) is applied to\n\
-the list ARGS... as it appears in the expression,\n\
-and the result should be a form to be evaluated instead of the original.\n\
-usage: (defmacro NAME ARGLIST [DOCSTRING] BODY...)")
- (args)
+ doc: /* Define NAME as a macro.
+The actual definition looks like
+ (macro lambda ARGLIST [DOCSTRING] [DECL] BODY...).
+When the macro is called, as in (NAME ARGS...),
+the function (lambda ARGLIST BODY...) is applied to
+the list ARGS... as it appears in the expression,
+and the result should be a form to be evaluated instead of the original.
+
+DECL is a declaration, optional, which can specify how to indent
+calls to this macro and how Edebug should handle it. It looks like this:
+ (declare SPECS...)
+The elements can look like this:
+ (indent INDENT)
+ Set NAME's `lisp-indent-function' property to INDENT.
+
+ (debug DEBUG)
+ Set NAME's `edebug-form-spec' property to DEBUG. (This is
+ equivalent to writing a `def-edebug-spec' for the macro.)
+usage: (defmacro NAME ARGLIST [DOCSTRING] [DECL] BODY...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object fn_name;
register Lisp_Object defn;
+ Lisp_Object lambda_list, doc, tail;
fn_name = Fcar (args);
- defn = Fcons (Qmacro, Fcons (Qlambda, Fcdr (args)));
+ CHECK_SYMBOL (fn_name);
+ lambda_list = Fcar (Fcdr (args));
+ tail = Fcdr (Fcdr (args));
+
+ doc = Qnil;
+ if (STRINGP (Fcar (tail)))
+ {
+ doc = XCAR (tail);
+ tail = XCDR (tail);
+ }
+
+ while (CONSP (Fcar (tail))
+ && EQ (Fcar (Fcar (tail)), Qdeclare))
+ {
+ if (!NILP (Vmacro_declaration_function))
+ {
+ struct gcpro gcpro1;
+ GCPRO1 (args);
+ call2 (Vmacro_declaration_function, fn_name, Fcar (tail));
+ UNGCPRO;
+ }
+
+ tail = Fcdr (tail);
+ }
+
+ if (NILP (doc))
+ tail = Fcons (lambda_list, tail);
+ else
+ tail = Fcons (lambda_list, Fcons (doc, tail));
+ defn = Fcons (Qmacro, Fcons (Qlambda, tail));
+
if (!NILP (Vpurify_flag))
defn = Fpurecopy (defn);
+ if (CONSP (XSYMBOL (fn_name)->function)
+ && EQ (XCAR (XSYMBOL (fn_name)->function), Qautoload))
+ LOADHIST_ATTACH (Fcons (Qt, fn_name));
Ffset (fn_name, defn);
- LOADHIST_ATTACH (fn_name);
+ LOADHIST_ATTACH (Fcons (Qdefun, fn_name));
return fn_name;
}
-DEFUN ("defvaralias", Fdefvaralias, Sdefvaralias, 2, 2, 0,
- "Make SYMBOL a variable alias for symbol ALIASED.\n\
-Setting the value of SYMBOL will subsequently set the value of ALIASED,\n\
-and getting the value of SYMBOL will return the value ALIASED has.\n\
-ALIASED nil means remove the alias; SYMBOL is unbound after that.")
- (symbol, aliased)
- Lisp_Object symbol, aliased;
+DEFUN ("defvaralias", Fdefvaralias, Sdefvaralias, 2, 3, 0,
+ doc: /* Make NEW-ALIAS a variable alias for symbol BASE-VARIABLE.
+Setting the value of NEW-ALIAS will subsequently set the value of BASE-VARIABLE,
+ and getting the value of NEW-ALIAS will return the value BASE-VARIABLE has.
+Third arg DOCSTRING, if non-nil, is documentation for NEW-ALIAS. If it is
+ omitted or nil, NEW-ALIAS gets the documentation string of BASE-VARIABLE,
+ or of the variable at the end of the chain of aliases, if BASE-VARIABLE is
+ itself an alias.
+The return value is BASE-VARIABLE. */)
+ (new_alias, base_variable, docstring)
+ Lisp_Object new_alias, base_variable, docstring;
{
struct Lisp_Symbol *sym;
-
- CHECK_SYMBOL (symbol, 0);
- CHECK_SYMBOL (aliased, 1);
- if (SYMBOL_CONSTANT_P (symbol))
+ CHECK_SYMBOL (new_alias);
+ CHECK_SYMBOL (base_variable);
+
+ if (SYMBOL_CONSTANT_P (new_alias))
error ("Cannot make a constant an alias");
- sym = XSYMBOL (symbol);
+ sym = XSYMBOL (new_alias);
sym->indirect_variable = 1;
- sym->value = aliased;
- sym->constant = SYMBOL_CONSTANT_P (aliased);
- LOADHIST_ATTACH (symbol);
-
- return aliased;
+ sym->value = base_variable;
+ sym->constant = SYMBOL_CONSTANT_P (base_variable);
+ LOADHIST_ATTACH (new_alias);
+ if (!NILP (docstring))
+ Fput (new_alias, Qvariable_documentation, docstring);
+ else
+ Fput (new_alias, Qvariable_documentation, Qnil);
+
+ return base_variable;
}
DEFUN ("defvar", Fdefvar, Sdefvar, 1, UNEVALLED, 0,
- "Define SYMBOL as a variable.\n\
-You are not required to define a variable in order to use it,\n\
-but the definition can supply documentation and an initial value\n\
-in a way that tags can recognize.\n\n\
-INITVALUE is evaluated, and used to set SYMBOL, only if SYMBOL's value is void.\n\
-If SYMBOL is buffer-local, its default value is what is set;\n\
- buffer-local values are not affected.\n\
-INITVALUE and DOCSTRING are optional.\n\
-If DOCSTRING starts with *, this variable is identified as a user option.\n\
- This means that M-x set-variable recognizes it.\n\
- See also `user-variable-p'.\n\
-If INITVALUE is missing, SYMBOL's value is not set.\n\
-usage: (defvar SYMBOL [INITVALUE DOCSTRING])")
- (args)
+ doc: /* Define SYMBOL as a variable, and return SYMBOL.
+You are not required to define a variable in order to use it,
+but the definition can supply documentation and an initial value
+in a way that tags can recognize.
+
+INITVALUE is evaluated, and used to set SYMBOL, only if SYMBOL's value is void.
+If SYMBOL is buffer-local, its default value is what is set;
+ buffer-local values are not affected.
+INITVALUE and DOCSTRING are optional.
+If DOCSTRING starts with *, this variable is identified as a user option.
+ This means that M-x set-variable recognizes it.
+ See also `user-variable-p'.
+If INITVALUE is missing, SYMBOL's value is not set.
+
+If SYMBOL has a local binding, then this form affects the local
+binding. This is usually not what you want. Thus, if you need to
+load a file defining variables, with this form or with `defconst' or
+`defcustom', you should always load that file _outside_ any bindings
+for these variables. \(`defconst' and `defcustom' behave similarly in
+this respect.)
+usage: (defvar SYMBOL &optional INITVALUE DOCSTRING) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object sym, tem, tail;
sym = Fcar (args);
tail = Fcdr (args);
if (!NILP (Fcdr (Fcdr (tail))))
- error ("too many arguments");
+ error ("Too many arguments");
tem = Fdefault_boundp (sym);
if (!NILP (tail))
{
+ if (SYMBOL_CONSTANT_P (sym))
+ {
+ /* For upward compatibility, allow (defvar :foo (quote :foo)). */
+ Lisp_Object tem = Fcar (tail);
+ if (! (CONSP (tem)
+ && EQ (XCAR (tem), Qquote)
+ && CONSP (XCDR (tem))
+ && EQ (XCAR (XCDR (tem)), sym)))
+ error ("Constant symbol `%s' specified in defvar",
+ SDATA (SYMBOL_NAME (sym)));
+ }
+
if (NILP (tem))
Fset_default (sym, Feval (Fcar (tail)));
+ else
+ { /* Check if there is really a global binding rather than just a let
+ binding that shadows the global unboundness of the var. */
+ volatile struct specbinding *pdl = specpdl_ptr;
+ while (--pdl >= specpdl)
+ {
+ if (EQ (pdl->symbol, sym) && !pdl->func
+ && EQ (pdl->old_value, Qunbound))
+ {
+ message_with_string ("Warning: defvar ignored because %s is let-bound",
+ SYMBOL_NAME (sym), 1);
+ break;
+ }
+ }
+ }
tail = Fcdr (tail);
- if (!NILP (Fcar (tail)))
+ tem = Fcar (tail);
+ if (!NILP (tem))
{
- tem = Fcar (tail);
if (!NILP (Vpurify_flag))
tem = Fpurecopy (tem);
Fput (sym, Qvariable_documentation, tem);
LOADHIST_ATTACH (sym);
}
else
- /* A (defvar <var>) should not take precedence in the load-history over
- an earlier (defvar <var> <val>), so only add to history if the default
- value is still unbound. */
- if (NILP (tem))
- LOADHIST_ATTACH (sym);
-
+ /* Simple (defvar <var>) should not count as a definition at all.
+ It could get in the way of other definitions, and unloading this
+ package could try to make the variable unbound. */
+ ;
+
return sym;
}
DEFUN ("defconst", Fdefconst, Sdefconst, 2, UNEVALLED, 0,
- "Define SYMBOL as a constant variable.\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\
-usage: (defconst SYMBOL INITVALUE [DOCSTRING])")
- (args)
+ doc: /* Define SYMBOL as a constant variable.
+The intent is that neither programs nor users should ever change this value.
+Always sets the value of SYMBOL to the result of evalling INITVALUE.
+If SYMBOL is buffer-local, its default value is what is set;
+ buffer-local values are not affected.
+DOCSTRING is optional.
+
+If SYMBOL has a local binding, then this form sets the local binding's
+value. However, you should normally not make local bindings for
+variables defined with this form.
+usage: (defconst SYMBOL INITVALUE [DOCSTRING]) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object sym, tem;
sym = Fcar (args);
if (!NILP (Fcdr (Fcdr (Fcdr (args)))))
- error ("too many arguments");
+ error ("Too many arguments");
tem = Feval (Fcar (Fcdr (args)));
if (!NILP (Vpurify_flag))
return sym;
}
+/* Error handler used in Fuser_variable_p. */
+static Lisp_Object
+user_variable_p_eh (ignore)
+ Lisp_Object ignore;
+{
+ return Qnil;
+}
+
DEFUN ("user-variable-p", Fuser_variable_p, Suser_variable_p, 1, 1, 0,
- "Returns t if VARIABLE is intended to be set and modified by users.\n\
-\(The alternative is a variable used internally in a Lisp program.)\n\
-Determined by whether the first character of the documentation\n\
-for the variable is `*' or if the variable is customizable (has a non-nil\n\
-value of any of `custom-type', `custom-loads' or `standard-value'\n\
-on its property list).")
- (variable)
+ doc: /* Return t if VARIABLE is intended to be set and modified by users.
+\(The alternative is a variable used internally in a Lisp program.)
+A variable is a user variable if
+\(1) the first character of its documentation is `*', or
+\(2) it is customizable (its property list contains a non-nil value
+ of `standard-value' or `custom-autoload'), or
+\(3) it is an alias for another user variable.
+Return nil if VARIABLE is an alias and there is a loop in the
+chain of symbols. */)
+ (variable)
Lisp_Object variable;
{
Lisp_Object documentation;
-
+
if (!SYMBOLP (variable))
return Qnil;
- documentation = Fget (variable, Qvariable_documentation);
- if (INTEGERP (documentation) && XINT (documentation) < 0)
- return Qt;
- if (STRINGP (documentation)
- && ((unsigned char) XSTRING (documentation)->data[0] == '*'))
- return Qt;
- /* If it is (STRING . INTEGER), a negative integer means a user variable. */
- if (CONSP (documentation)
- && STRINGP (XCAR (documentation))
- && INTEGERP (XCDR (documentation))
- && XINT (XCDR (documentation)) < 0)
- return Qt;
- /* Customizable? */
- if ((!NILP (Fget (variable, intern ("custom-type"))))
- || (!NILP (Fget (variable, intern ("custom-loads"))))
- || (!NILP (Fget (variable, intern ("standard-value")))))
- return Qt;
- return Qnil;
-}
+ /* If indirect and there's an alias loop, don't check anything else. */
+ if (XSYMBOL (variable)->indirect_variable
+ && NILP (internal_condition_case_1 (indirect_variable, variable,
+ Qt, user_variable_p_eh)))
+ return Qnil;
+
+ while (1)
+ {
+ documentation = Fget (variable, Qvariable_documentation);
+ if (INTEGERP (documentation) && XINT (documentation) < 0)
+ return Qt;
+ if (STRINGP (documentation)
+ && ((unsigned char) SREF (documentation, 0) == '*'))
+ return Qt;
+ /* If it is (STRING . INTEGER), a negative integer means a user variable. */
+ if (CONSP (documentation)
+ && STRINGP (XCAR (documentation))
+ && INTEGERP (XCDR (documentation))
+ && XINT (XCDR (documentation)) < 0)
+ return Qt;
+ /* Customizable? See `custom-variable-p'. */
+ if ((!NILP (Fget (variable, intern ("standard-value"))))
+ || (!NILP (Fget (variable, intern ("custom-autoload")))))
+ return Qt;
+
+ if (!XSYMBOL (variable)->indirect_variable)
+ return Qnil;
+
+ /* An indirect variable? Let's follow the chain. */
+ variable = XSYMBOL (variable)->value;
+ }
+}
\f
DEFUN ("let*", FletX, SletX, 1, UNEVALLED, 0,
- "Bind variables according to VARLIST then eval BODY.\n\
-The value of the last form in BODY is returned.\n\
-Each element of VARLIST is a symbol (which is bound to nil)\n\
-or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).\n\
-Each VALUEFORM can refer to the symbols already bound by this VARLIST.\n\
-usage: (let* VARLIST BODY...)")
- (args)
+ doc: /* Bind variables according to VARLIST then eval BODY.
+The value of the last form in BODY is returned.
+Each element of VARLIST is a symbol (which is bound to nil)
+or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).
+Each VALUEFORM can refer to the symbols already bound by this VARLIST.
+usage: (let* VARLIST BODY...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object varlist, val, elt;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
struct gcpro gcpro1, gcpro2, gcpro3;
GCPRO3 (args, elt, varlist);
}
DEFUN ("let", Flet, Slet, 1, UNEVALLED, 0,
- "Bind variables according to VARLIST then eval BODY.\n\
-The value of the last form in BODY is returned.\n\
-Each element of VARLIST is a symbol (which is bound to nil)\n\
-or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).\n\
-All the VALUEFORMs are evalled before any symbols are bound.\n\
-usage: (let VARLIST BODY...)")
- (args)
+ doc: /* Bind variables according to VARLIST then eval BODY.
+The value of the last form in BODY is returned.
+Each element of VARLIST is a symbol (which is bound to nil)
+or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).
+All the VALUEFORMs are evalled before any symbols are bound.
+usage: (let VARLIST BODY...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object *temps, tem;
register Lisp_Object elt, varlist;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
register int argnum;
struct gcpro gcpro1, gcpro2;
}
DEFUN ("while", Fwhile, Swhile, 1, UNEVALLED, 0,
- "If TEST yields non-nil, eval BODY... and repeat.\n\
-The order of execution is thus TEST, BODY, TEST, BODY and so on\n\
-until TEST returns nil.\n\
-usage: (while TEST BODY...)")
- (args)
+ doc: /* If TEST yields non-nil, eval BODY... and repeat.
+The order of execution is thus TEST, BODY, TEST, BODY and so on
+until TEST returns nil.
+usage: (while TEST BODY...) */)
+ (args)
Lisp_Object args;
{
- Lisp_Object test, body, tem;
+ Lisp_Object test, body;
struct gcpro gcpro1, gcpro2;
GCPRO2 (test, body);
test = Fcar (args);
body = Fcdr (args);
- while (tem = Feval (test),
- (!EQ (Vmocklisp_arguments, Qt) ? XINT (tem) : !NILP (tem)))
+ while (!NILP (Feval (test)))
{
QUIT;
Fprogn (body);
}
DEFUN ("macroexpand", Fmacroexpand, Smacroexpand, 1, 2, 0,
- "Return result of expanding macros at top level of FORM.\n\
-If FORM is not a macro call, it is returned unchanged.\n\
-Otherwise, the macro is expanded and the expansion is considered\n\
-in place of FORM. When a non-macro-call results, it is returned.\n\n\
-The second optional arg ENVIRONMENT specifies an environment of macro\n\
-definitions to shadow the loaded ones for use in file byte-compilation.")
- (form, environment)
+ doc: /* Return result of expanding macros at top level of FORM.
+If FORM is not a macro call, it is returned unchanged.
+Otherwise, the macro is expanded and the expansion is considered
+in place of FORM. When a non-macro-call results, it is returned.
+
+The second optional arg ENVIRONMENT specifies an environment of macro
+definitions to shadow the loaded ones for use in file byte-compilation. */)
+ (form, environment)
Lisp_Object form;
Lisp_Object environment;
{
}
\f
DEFUN ("catch", Fcatch, Scatch, 1, UNEVALLED, 0,
- "Eval BODY allowing nonlocal exits using `throw'.\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'.\n\
-usage: (catch TAG BODY...)")
- (args)
+ doc: /* Eval BODY allowing nonlocal exits using `throw'.
+TAG is evalled to get the tag to use; it must not be nil.
+
+Then the BODY is executed.
+Within BODY, (throw TAG) with same tag exits BODY and exits this `catch'.
+If no throw happens, `catch' returns the value of the last BODY form.
+If a throw happens, it specifies the value to return from `catch'.
+usage: (catch TAG BODY...) */)
+ (args)
Lisp_Object args;
{
register Lisp_Object tag;
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
+ c.interrupt_input_blocked = interrupt_input_blocked;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
catchlist = &c;
/* Save the value in the tag. */
catch->val = value;
- /* Restore the polling-suppression count. */
+ /* Restore certain special C variables. */
set_poll_suppress_count (catch->poll_suppress_count);
+ UNBLOCK_INPUT_TO (catch->interrupt_input_blocked);
+ handling_signal = 0;
+ immediate_quit = 0;
do
{
}
while (! last_time);
+#if HAVE_X_WINDOWS
+ /* If x_catch_errors was done, turn it off now.
+ (First we give unbind_to a chance to do that.) */
+ x_fully_uncatch_errors ();
+#endif
+
byte_stack_list = catch->byte_stack;
gcprolist = catch->gcpro;
#ifdef DEBUG_GCPRO
#endif
backtrace_list = catch->backlist;
lisp_eval_depth = catch->lisp_eval_depth;
-
+
_longjmp (catch->jmp, 1);
}
DEFUN ("throw", Fthrow, Sthrow, 2, 2, 0,
- "Throw to the catch for TAG and return VALUE from it.\n\
-Both TAG and VALUE are evalled.")
- (tag, value)
+ doc: /* Throw to the catch for TAG and return VALUE from it.
+Both TAG and VALUE are evalled. */)
+ (tag, value)
register Lisp_Object tag, value;
{
register struct catchtag *c;
DEFUN ("unwind-protect", Funwind_protect, Sunwind_protect, 1, UNEVALLED, 0,
- "Do BODYFORM, protecting with UNWINDFORMS.\n\
-If BODYFORM completes normally, its value is returned\n\
-after executing the UNWINDFORMS.\n\
-If BODYFORM exits nonlocally, the UNWINDFORMS are executed anyway.\n\
-usage: (unwind-protect BODYFORM UNWINDFORMS...)")
- (args)
+ doc: /* Do BODYFORM, protecting with UNWINDFORMS.
+If BODYFORM completes normally, its value is returned
+after executing the UNWINDFORMS.
+If BODYFORM exits nonlocally, the UNWINDFORMS are executed anyway.
+usage: (unwind-protect BODYFORM UNWINDFORMS...) */)
+ (args)
Lisp_Object args;
{
Lisp_Object val;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
- record_unwind_protect (0, Fcdr (args));
+ record_unwind_protect (Fprogn, Fcdr (args));
val = Feval (Fcar (args));
- return unbind_to (count, val);
+ return unbind_to (count, val);
}
\f
/* Chain of condition handlers currently in effect.
struct handler *handlerlist;
DEFUN ("condition-case", Fcondition_case, Scondition_case, 2, UNEVALLED, 0,
- "Regain control when an error is signaled.\n\
-executes BODYFORM and returns its value if no error happens.\n\
-Each element of HANDLERS looks like (CONDITION-NAME BODY...)\n\
-where the BODY is made of Lisp expressions.\n\n\
-A handler is applicable to an error\n\
-if CONDITION-NAME is one of the error's condition names.\n\
-If an error happens, the first applicable handler is run.\n\
-\n\
-The car of a handler may be a list of condition names\n\
-instead of a single condition name.\n\
-\n\
-When a handler handles an error,\n\
-control returns to the condition-case and the handler BODY... is executed\n\
-with VAR bound to (SIGNALED-CONDITIONS . SIGNAL-DATA).\n\
-VAR may be nil; then you do not get access to the signal information.\n\
-\n\
-The value of the last BODY form is returned from the condition-case.\n\
-See also the function `signal' for more info.\n\
-usage: (condition-case VAR BODYFORM HANDLERS...)")
- (args)
+ doc: /* Regain control when an error is signaled.
+Executes BODYFORM and returns its value if no error happens.
+Each element of HANDLERS looks like (CONDITION-NAME BODY...)
+where the BODY is made of Lisp expressions.
+
+A handler is applicable to an error
+if CONDITION-NAME is one of the error's condition names.
+If an error happens, the first applicable handler is run.
+
+The car of a handler may be a list of condition names
+instead of a single condition name.
+
+When a handler handles an error,
+control returns to the condition-case and the handler BODY... is executed
+with VAR bound to (SIGNALED-CONDITIONS . SIGNAL-DATA).
+VAR may be nil; then you do not get access to the signal information.
+
+The value of the last BODY form is returned from the condition-case.
+See also the function `signal' for more info.
+usage: (condition-case VAR BODYFORM &rest HANDLERS) */)
+ (args)
Lisp_Object args;
{
- Lisp_Object val;
- struct catchtag c;
- struct handler h;
register Lisp_Object bodyform, handlers;
volatile Lisp_Object var;
var = Fcar (args);
bodyform = Fcar (Fcdr (args));
handlers = Fcdr (Fcdr (args));
- CHECK_SYMBOL (var, 0);
- for (val = handlers; ! NILP (val); val = Fcdr (val))
+ return internal_lisp_condition_case (var, bodyform, handlers);
+}
+
+/* Like Fcondition_case, but the args are separate
+ rather than passed in a list. Used by Fbyte_code. */
+
+Lisp_Object
+internal_lisp_condition_case (var, bodyform, handlers)
+ volatile Lisp_Object var;
+ Lisp_Object bodyform, handlers;
+{
+ Lisp_Object val;
+ struct catchtag c;
+ struct handler h;
+
+ CHECK_SYMBOL (var);
+
+ for (val = handlers; CONSP (val); val = XCDR (val))
{
Lisp_Object tem;
- tem = Fcar (val);
+ tem = XCAR (val);
if (! (NILP (tem)
|| (CONSP (tem)
&& (SYMBOLP (XCAR (tem))
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
+ c.interrupt_input_blocked = interrupt_input_blocked;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
if (_setjmp (c.jmp))
}
c.next = catchlist;
catchlist = &c;
-
+
h.var = var;
h.handler = handlers;
h.next = handlerlist;
struct catchtag c;
struct handler h;
-#if 0 /* Can't do this check anymore because realize_basic_faces has
- to BLOCK_INPUT, and can call Lisp. What's really needed is a
- flag indicating that we're currently handling a signal. */
- /* Since Fsignal resets this to 0, it had better be 0 now
- or else we have a potential bug. */
- if (interrupt_input_blocked != 0)
+ /* Since Fsignal will close off all calls to x_catch_errors,
+ we will get the wrong results if some are not closed now. */
+#if HAVE_X_WINDOWS
+ if (x_catching_errors ())
abort ();
#endif
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
+ c.interrupt_input_blocked = interrupt_input_blocked;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
if (_setjmp (c.jmp))
return val;
}
-/* Like internal_condition_case but call HFUN with ARG as its argument. */
+/* Like internal_condition_case but call BFUN with ARG as its argument. */
Lisp_Object
internal_condition_case_1 (bfun, arg, handlers, hfun)
struct catchtag c;
struct handler h;
+ /* Since Fsignal will close off all calls to x_catch_errors,
+ we will get the wrong results if some are not closed now. */
+#if HAVE_X_WINDOWS
+ if (x_catching_errors ())
+ abort ();
+#endif
+
c.tag = Qnil;
c.val = Qnil;
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
+ c.interrupt_input_blocked = interrupt_input_blocked;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
if (_setjmp (c.jmp))
}
-/* Like internal_condition_case but call HFUN with NARGS as first,
+/* Like internal_condition_case but call BFUN with NARGS as first,
and ARGS as second argument. */
Lisp_Object
struct catchtag c;
struct handler h;
+ /* Since Fsignal will close off all calls to x_catch_errors,
+ we will get the wrong results if some are not closed now. */
+#if HAVE_X_WINDOWS
+ if (x_catching_errors ())
+ abort ();
+#endif
+
c.tag = Qnil;
c.val = Qnil;
c.backlist = backtrace_list;
c.handlerlist = handlerlist;
c.lisp_eval_depth = lisp_eval_depth;
- c.pdlcount = specpdl_ptr - specpdl;
+ c.pdlcount = SPECPDL_INDEX ();
c.poll_suppress_count = poll_suppress_count;
+ c.interrupt_input_blocked = interrupt_input_blocked;
c.gcpro = gcprolist;
c.byte_stack = byte_stack_list;
if (_setjmp (c.jmp))
}
\f
-static Lisp_Object find_handler_clause ();
+static Lisp_Object find_handler_clause P_ ((Lisp_Object, Lisp_Object,
+ Lisp_Object, Lisp_Object,
+ Lisp_Object *));
DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0,
- "Signal an error. Args are ERROR-SYMBOL and associated DATA.\n\
-This function does not return.\n\n\
-An error symbol is a symbol with an `error-conditions' property\n\
-that is a list of condition names.\n\
-A handler for any of those names will get to handle this signal.\n\
-The symbol `error' should normally be one of them.\n\
-\n\
-DATA should be a list. Its elements are printed as part of the error message.\n\
-If the signal is handled, DATA is made available to the handler.\n\
-See also the function `condition-case'.")
- (error_symbol, data)
+ doc: /* Signal an error. Args are ERROR-SYMBOL and associated DATA.
+This function does not return.
+
+An error symbol is a symbol with an `error-conditions' property
+that is a list of condition names.
+A handler for any of those names will get to handle this signal.
+The symbol `error' should normally be one of them.
+
+DATA should be a list. Its elements are printed as part of the error message.
+See Info anchor `(elisp)Definition of signal' for some details on how this
+error message is constructed.
+If the signal is handled, DATA is made available to the handler.
+See also the function `condition-case'. */)
+ (error_symbol, data)
Lisp_Object error_symbol, data;
{
/* When memory is full, ERROR-SYMBOL is nil,
- and DATA is (REAL-ERROR-SYMBOL . REAL-DATA). */
+ and DATA is (REAL-ERROR-SYMBOL . REAL-DATA).
+ That is a special case--don't do this in other situations. */
register struct handler *allhandlers = handlerlist;
Lisp_Object conditions;
extern int gc_in_progress;
Lisp_Object debugger_value;
Lisp_Object string;
Lisp_Object real_error_symbol;
- extern int display_hourglass_p;
struct backtrace *bp;
immediate_quit = handling_signal = 0;
+ abort_on_gc = 0;
if (gc_in_progress || waiting_for_input)
abort ();
- TOTALLY_UNBLOCK_INPUT;
-
if (NILP (error_symbol))
real_error_symbol = Fcar (data);
else
real_error_symbol = error_symbol;
+#if 0 /* rms: I don't know why this was here,
+ but it is surely wrong for an error that is handled. */
#ifdef HAVE_X_WINDOWS
if (display_hourglass_p)
cancel_hourglass ();
+#endif
#endif
/* This hook is used by edebug. */
- if (! NILP (Vsignal_hook_function))
- call2 (Vsignal_hook_function, error_symbol, data);
+ if (! NILP (Vsignal_hook_function)
+ && ! NILP (error_symbol))
+ {
+ /* Edebug takes care of restoring these variables when it exits. */
+ if (lisp_eval_depth + 20 > max_lisp_eval_depth)
+ max_lisp_eval_depth = lisp_eval_depth + 20;
+
+ if (SPECPDL_INDEX () + 40 > max_specpdl_size)
+ max_specpdl_size = SPECPDL_INDEX () + 40;
+
+ call2 (Vsignal_hook_function, error_symbol, data);
+ }
conditions = Fget (real_error_symbol, Qerror_conditions);
/* Remember from where signal was called. Skip over the frame for
`signal' itself. If a frame for `error' follows, skip that,
- too. */
+ too. Don't do this when ERROR_SYMBOL is nil, because that
+ is a memory-full error. */
Vsignaling_function = Qnil;
- if (backtrace_list)
+ if (backtrace_list && !NILP (error_symbol))
{
bp = backtrace_list->next;
if (bp && bp->function && EQ (*bp->function, Qerror))
for (; handlerlist; handlerlist = handlerlist->next)
{
register Lisp_Object clause;
-
- if (lisp_eval_depth + 20 > max_lisp_eval_depth)
- max_lisp_eval_depth = lisp_eval_depth + 20;
-
- if (specpdl_size + 40 > max_specpdl_size)
- max_specpdl_size = specpdl_size + 40;
-
+
clause = find_handler_clause (handlerlist->handler, conditions,
error_symbol, data, &debugger_value);
-#if 0 /* Most callers are not prepared to handle gc if this returns.
- So, since this feature is not very useful, take it out. */
- /* If have called debugger and user wants to continue,
- just return nil. */
- if (EQ (clause, Qlambda))
- return debugger_value;
-#else
if (EQ (clause, Qlambda))
{
/* We can't return values to code which signaled an error, but we
else
error ("Cannot return from the debugger in an error");
}
-#endif
if (!NILP (clause))
{
data = Fcons (error_symbol, data);
string = Ferror_message_string (data);
- fatal ("%s", XSTRING (string)->data, 0);
+ fatal ("%s", SDATA (string), 0);
}
/* Return nonzero iff LIST is a non-nil atom or
/* Return 1 if an error with condition-symbols CONDITIONS,
and described by SIGNAL-DATA, should skip the debugger
- according to debugger-ignore-errors. */
+ according to debugger-ignored-errors. */
static int
skip_debugger (conditions, data)
error_message = Ferror_message_string (data);
first_string = 0;
}
-
+
if (fast_string_match (XCAR (tail), error_message) >= 0)
return 1;
}
= 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. */
+ Store value returned from debugger into *DEBUGGER_VALUE_PTR.
+
+ We need to increase max_specpdl_size temporarily around
+ anything we do that can push on the specpdl, so as not to get
+ a second error here in case we're handling specpdl overflow. */
static Lisp_Object
find_handler_clause (handlers, conditions, sig, data, debugger_value_ptr)
|| !NILP (Vdebug_on_signal)) /* This says call debugger even if
there is a handler. */
{
- 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,
if (wants_debugger (Vstack_trace_on_error, conditions))
{
+ max_specpdl_size++;
#ifdef PROTOTYPES
internal_with_output_to_temp_buffer ("*Backtrace*",
(Lisp_Object (*) (Lisp_Object)) Fbacktrace,
internal_with_output_to_temp_buffer ("*Backtrace*",
Fbacktrace, Qnil);
#endif
+ max_specpdl_size--;
}
if (! no_debugger
&& (EQ (sig_symbol, Qquit)
&& ! skip_debugger (conditions, combined_data)
&& when_entered_debugger < num_nonmacro_input_events)
{
- specbind (Qdebug_on_error, Qnil);
*debugger_value_ptr
= call_debugger (Fcons (Qerror,
Fcons (combined_data, Qnil)));
if (EQ (handlers, Qerror))
{
if (debugger_called)
- return unbind_to (count, Qlambda);
+ return Qlambda;
return Qt;
}
}
abort ();
}
\f
-DEFUN ("commandp", Fcommandp, Scommandp, 1, 1, 0,
- "T if FUNCTION makes provisions for interactive calling.\n\
-This means it contains a description for how to read arguments to give it.\n\
-The value is nil for an invalid function or a symbol with no function\n\
-definition.\n\
-\n\
-Interactively callable functions include strings and vectors (treated\n\
-as keyboard macros), lambda-expressions that contain a top-level call\n\
-to `interactive', autoload definitions made by `autoload' with non-nil\n\
-fourth argument, and some of the built-in functions of Lisp.\n\
-\n\
-Also, a symbol satisfies `commandp' if its function definition does so.")
- (function)
- Lisp_Object function;
+DEFUN ("commandp", Fcommandp, Scommandp, 1, 2, 0,
+ doc: /* Non-nil if FUNCTION makes provisions for interactive calling.
+This means it contains a description for how to read arguments to give it.
+The value is nil for an invalid function or a symbol with no function
+definition.
+
+Interactively callable functions include strings and vectors (treated
+as keyboard macros), lambda-expressions that contain a top-level call
+to `interactive', autoload definitions made by `autoload' with non-nil
+fourth argument, and some of the built-in functions of Lisp.
+
+Also, a symbol satisfies `commandp' if its function definition does so.
+
+If the optional argument FOR-CALL-INTERACTIVELY is non-nil,
+then strings and vectors are not accepted. */)
+ (function, for_call_interactively)
+ Lisp_Object function, for_call_interactively;
{
register Lisp_Object fun;
register Lisp_Object funcar;
have an element whose index is COMPILED_INTERACTIVE, which is
where the interactive spec is stored. */
else if (COMPILEDP (fun))
- return ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE
+ return ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE
? Qt : Qnil);
/* Strings and vectors are keyboard macros. */
- if (STRINGP (fun) || VECTORP (fun))
+ if (NILP (for_call_interactively) && (STRINGP (fun) || VECTORP (fun)))
return Qt;
/* Lists may represent commands. */
if (!CONSP (fun))
return Qnil;
- funcar = Fcar (fun);
- if (!SYMBOLP (funcar))
- return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
+ funcar = XCAR (fun);
if (EQ (funcar, Qlambda))
- return Fassq (Qinteractive, Fcdr (Fcdr (fun)));
- if (EQ (funcar, Qmocklisp))
- return Qt; /* All mocklisp functions can be called interactively */
+ return Fassq (Qinteractive, Fcdr (XCDR (fun)));
if (EQ (funcar, Qautoload))
- return Fcar (Fcdr (Fcdr (Fcdr (fun))));
+ return Fcar (Fcdr (Fcdr (XCDR (fun))));
else
return Qnil;
}
/* ARGSUSED */
DEFUN ("autoload", Fautoload, Sautoload, 2, 5, 0,
- "Define FUNCTION to autoload from FILE.\n\
-FUNCTION is a symbol; FILE is a file name string to pass to `load'.\n\
-Third arg DOCSTRING is documentation for the function.\n\
-Fourth arg INTERACTIVE if non-nil says function can be called interactively.\n\
-Fifth arg TYPE indicates the type of the object:\n\
- nil or omitted says FUNCTION is a function,\n\
- `keymap' says FUNCTION is really a keymap, and\n\
- `macro' or t says FUNCTION is really a macro.\n\
-Third through fifth args give info about the real definition.\n\
-They default to nil.\n\
-If FUNCTION is already defined other than as an autoload,\n\
-this does nothing and returns nil.")
- (function, file, docstring, interactive, type)
+ doc: /* Define FUNCTION to autoload from FILE.
+FUNCTION is a symbol; FILE is a file name string to pass to `load'.
+Third arg DOCSTRING is documentation for the function.
+Fourth arg INTERACTIVE if non-nil says function can be called interactively.
+Fifth arg TYPE indicates the type of the object:
+ nil or omitted says FUNCTION is a function,
+ `keymap' says FUNCTION is really a keymap, and
+ `macro' or t says FUNCTION is really a macro.
+Third through fifth args give info about the real definition.
+They default to nil.
+If FUNCTION is already defined other than as an autoload,
+this does nothing and returns nil. */)
+ (function, file, docstring, interactive, type)
Lisp_Object function, file, docstring, interactive, type;
{
#ifdef NO_ARG_ARRAY
Lisp_Object args[4];
#endif
- CHECK_SYMBOL (function, 0);
- CHECK_STRING (file, 1);
+ CHECK_SYMBOL (function);
+ CHECK_STRING (file);
/* If function is defined and not as an autoload, don't override */
if (!EQ (XSYMBOL (function)->function, Qunbound)
Vautoload_queue = oldqueue;
while (CONSP (queue))
{
- first = Fcar (queue);
+ first = XCAR (queue);
second = Fcdr (first);
first = Fcar (first);
- if (EQ (second, Qnil))
- Vfeatures = first;
+ if (EQ (first, make_number (0)))
+ Vfeatures = second;
else
Ffset (first, second);
- queue = Fcdr (queue);
+ queue = XCDR (queue);
}
return Qnil;
}
do_autoload (fundef, funname)
Lisp_Object fundef, funname;
{
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
Lisp_Object fun, queue, first, second;
struct gcpro gcpro1, gcpro2, gcpro3;
+ /* This is to make sure that loadup.el gives a clear picture
+ of what files are preloaded and when. */
+ if (! NILP (Vpurify_flag))
+ error ("Attempt to autoload %s while preparing to dump",
+ SDATA (SYMBOL_NAME (funname)));
+
fun = funname;
- CHECK_SYMBOL (funname, 0);
+ CHECK_SYMBOL (funname);
GCPRO3 (fun, funname, fundef);
/* Preserve the match data. */
- record_unwind_protect (Fset_match_data, Fmatch_data (Qnil, Qnil));
-
+ record_unwind_save_match_data ();
+
/* Value saved here is to be restored into Vautoload_queue. */
record_unwind_protect (un_autoload, Vautoload_queue);
Vautoload_queue = Qt;
queue = Vautoload_queue;
while (CONSP (queue))
{
- first = Fcar (queue);
+ first = XCAR (queue);
second = Fcdr (first);
first = Fcar (first);
- /* 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. */
- if (CONSP (second))
- Fput (first, Qautoload, (Fcdr (second)));
+ if (SYMBOLP (first) && CONSP (second) && EQ (XCAR (second), Qautoload))
+ Fput (first, Qautoload, (XCDR (second)));
- queue = Fcdr (queue);
+ queue = XCDR (queue);
}
/* Once loading finishes, don't undo it. */
Vautoload_queue = Qt;
unbind_to (count, Qnil);
- fun = Findirect_function (fun);
+ fun = Findirect_function (fun, Qnil);
if (!NILP (Fequal (fun, fundef)))
error ("Autoloading failed to define function %s",
- XSYMBOL (funname)->name->data);
+ SDATA (SYMBOL_NAME (funname)));
UNGCPRO;
}
\f
DEFUN ("eval", Feval, Seval, 1, 1, 0,
- "Evaluate FORM and return its value.")
- (form)
+ doc: /* Evaluate FORM and return its value. */)
+ (form)
Lisp_Object form;
{
Lisp_Object fun, val, original_fun, original_args;
if (handling_signal)
abort ();
-
+
if (SYMBOLP (form))
- {
- if (EQ (Vmocklisp_arguments, Qt))
- return Fsymbol_value (form);
- val = Fsymbol_value (form);
- if (NILP (val))
- XSETFASTINT (val, 0);
- else if (EQ (val, Qt))
- XSETFASTINT (val, 1);
- return val;
- }
+ return Fsymbol_value (form);
if (!CONSP (form))
return form;
QUIT;
- if (consing_since_gc > gc_cons_threshold)
+ if ((consing_since_gc > gc_cons_threshold
+ && consing_since_gc > gc_relative_threshold)
+ ||
+ (!NILP (Vmemory_full) && consing_since_gc > memory_full_cons_threshold))
{
GCPRO1 (form);
Fgarbage_collect ();
if (max_lisp_eval_depth < 100)
max_lisp_eval_depth = 100;
if (lisp_eval_depth > max_lisp_eval_depth)
- error ("Lisp nesting exceeds max-lisp-eval-depth");
+ error ("Lisp nesting exceeds `max-lisp-eval-depth'");
}
original_fun = Fcar (form);
/* At this point, only original_fun and original_args
have values that will be used below */
retry:
- fun = Findirect_function (original_fun);
+ fun = Findirect_function (original_fun, Qnil);
if (SUBRP (fun))
{
args_left = original_args;
numargs = Flength (args_left);
+ CHECK_CONS_LIST ();
+
if (XINT (numargs) < XSUBR (fun)->min_args ||
(XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < XINT (numargs)))
return Fsignal (Qwrong_number_of_arguments, Fcons (fun, Fcons (numargs, Qnil)));
val = Feval (apply1 (Fcdr (fun), original_args));
else if (EQ (funcar, Qlambda))
val = apply_lambda (fun, original_args, 1);
- else if (EQ (funcar, Qmocklisp))
- val = ml_apply (fun, original_args);
else
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
}
done:
- if (!EQ (Vmocklisp_arguments, Qt))
- {
- if (NILP (val))
- XSETFASTINT (val, 0);
- else if (EQ (val, Qt))
- XSETFASTINT (val, 1);
- }
+ CHECK_CONS_LIST ();
+
lisp_eval_depth--;
if (backtrace.debug_on_exit)
val = call_debugger (Fcons (Qexit, Fcons (val, Qnil)));
backtrace_list = backtrace.next;
+
return val;
}
\f
DEFUN ("apply", Fapply, Sapply, 2, MANY, 0,
- "Call FUNCTION with our remaining args, using our last arg as list of args.\n\
-Then return the value FUNCTION returns.\n\
-Thus, (apply '+ 1 2 '(3 4)) returns 10.\n\
-usage: (apply FUNCTION &rest ARGUMENTS)")
- (nargs, args)
+ doc: /* Call FUNCTION with our remaining args, using our last arg as list of args.
+Then return the value FUNCTION returns.
+Thus, (apply '+ 1 2 '(3 4)) returns 10.
+usage: (apply FUNCTION &rest ARGUMENTS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
fun = args [0];
funcall_args = 0;
spread_arg = args [nargs - 1];
- CHECK_LIST (spread_arg, nargs);
-
+ CHECK_LIST (spread_arg);
+
numargs = XINT (Flength (spread_arg));
if (numargs == 0)
spread_arg = XCDR (spread_arg);
}
+ /* By convention, the caller needs to gcpro Ffuncall's args. */
RETURN_UNGCPRO (Ffuncall (gcpro1.nvars, funcall_args));
}
\f
/* Run hook variables in various ways. */
enum run_hooks_condition {to_completion, until_success, until_failure};
+static Lisp_Object run_hook_with_args P_ ((int, Lisp_Object *,
+ enum run_hooks_condition));
DEFUN ("run-hooks", Frun_hooks, Srun_hooks, 0, MANY, 0,
- "Run each hook in HOOKS. Major mode functions use this.\n\
-Each argument should be a symbol, a hook variable.\n\
-These symbols are processed in the order specified.\n\
-If a hook symbol has a non-nil value, that value may be a function\n\
-or a list of functions to be called to run the hook.\n\
-If the value is a function, it is called with no arguments.\n\
-If it is a list, the elements are called, in order, with no arguments.\n\
-\n\
-To make a hook variable buffer-local, use `make-local-hook',\n\
-not `make-local-variable'.\n\
-usage: (run-hooks &rest HOOKS)")
- (nargs, args)
+ doc: /* Run each hook in HOOKS.
+Each argument should be a symbol, a hook variable.
+These symbols are processed in the order specified.
+If a hook symbol has a non-nil value, that value may be a function
+or a list of functions to be called to run the hook.
+If the value is a function, it is called with no arguments.
+If it is a list, the elements are called, in order, with no arguments.
+
+Major modes should not use this function directly to run their mode
+hook; they should use `run-mode-hooks' instead.
+
+Do not use `make-local-variable' to make a hook variable buffer-local.
+Instead, use `add-hook' and specify t for the LOCAL argument.
+usage: (run-hooks &rest HOOKS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
return Qnil;
}
-
+
DEFUN ("run-hook-with-args", Frun_hook_with_args,
- Srun_hook_with_args, 1, MANY, 0,
- "Run HOOK with the specified arguments ARGS.\n\
-HOOK should be a symbol, a hook variable. If HOOK has a non-nil\n\
-value, that value may be a function or a list of functions to be\n\
-called to run the hook. If the value is a function, it is called with\n\
-the given arguments and its return value is returned. If it is a list\n\
-of functions, those functions are called, in order,\n\
-with the given arguments ARGS.\n\
-It is best not to depend on the value return by `run-hook-with-args',\n\
-as that may change.\n\
-\n\
-To make a hook variable buffer-local, use `make-local-hook',\n\
-not `make-local-variable'.\n\
-usage: (run-hook-with-args HOOK &rest ARGS)")
- (nargs, args)
+ Srun_hook_with_args, 1, MANY, 0,
+ doc: /* Run HOOK with the specified arguments ARGS.
+HOOK should be a symbol, a hook variable. If HOOK has a non-nil
+value, that value may be a function or a list of functions to be
+called to run the hook. If the value is a function, it is called with
+the given arguments and its return value is returned. If it is a list
+of functions, those functions are called, in order,
+with the given arguments ARGS.
+It is best not to depend on the value returned by `run-hook-with-args',
+as that may change.
+
+Do not use `make-local-variable' to make a hook variable buffer-local.
+Instead, use `add-hook' and specify t for the LOCAL argument.
+usage: (run-hook-with-args HOOK &rest ARGS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
}
DEFUN ("run-hook-with-args-until-success", Frun_hook_with_args_until_success,
- Srun_hook_with_args_until_success, 1, MANY, 0,
- "Run HOOK with the specified arguments ARGS.\n\
-HOOK should be a symbol, a hook variable. Its value should\n\
-be a list of functions. We call those functions, one by one,\n\
-passing arguments ARGS to each of them, until one of them\n\
-returns a non-nil value. Then we return that value.\n\
-If all the functions return nil, we return nil.\n\
-\n\
-To make a hook variable buffer-local, use `make-local-hook',\n\
-not `make-local-variable'.\n\
-usage: (run-hook-with-args-until-success HOOK &rest ARGS)")
- (nargs, args)
+ Srun_hook_with_args_until_success, 1, MANY, 0,
+ doc: /* Run HOOK with the specified arguments ARGS.
+HOOK should be a symbol, a hook variable. If HOOK has a non-nil
+value, that value may be a function or a list of functions to be
+called to run the hook. If the value is a function, it is called with
+the given arguments and its return value is returned.
+If it is a list of functions, those functions are called, in order,
+with the given arguments ARGS, until one of them
+returns a non-nil value. Then we return that value.
+However, if they all return nil, we return nil.
+
+Do not use `make-local-variable' to make a hook variable buffer-local.
+Instead, use `add-hook' and specify t for the LOCAL argument.
+usage: (run-hook-with-args-until-success HOOK &rest ARGS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
}
DEFUN ("run-hook-with-args-until-failure", Frun_hook_with_args_until_failure,
- Srun_hook_with_args_until_failure, 1, MANY, 0,
- "Run HOOK with the specified arguments ARGS.\n\
-HOOK should be a symbol, a hook variable. Its value should\n\
-be a list of functions. We call those functions, one by one,\n\
-passing arguments ARGS to each of them, until one of them\n\
-returns nil. Then we return nil.\n\
-If all the functions return non-nil, we return non-nil.\n\
-\n\
-To make a hook variable buffer-local, use `make-local-hook',\n\
-not `make-local-variable'.\n\
-usage: (run-hook-with-args-until-failure HOOK &rest ARGS)")
- (nargs, args)
+ Srun_hook_with_args_until_failure, 1, MANY, 0,
+ doc: /* Run HOOK with the specified arguments ARGS.
+HOOK should be a symbol, a hook variable. If HOOK has a non-nil
+value, that value may be a function or a list of functions to be
+called to run the hook. If the value is a function, it is called with
+the given arguments and its return value is returned.
+If it is a list of functions, those functions are called, in order,
+with the given arguments ARGS, until one of them returns nil.
+Then we return nil. However, if they all return non-nil, we return non-nil.
+
+Do not use `make-local-variable' to make a hook variable buffer-local.
+Instead, use `add-hook' and specify t for the LOCAL argument.
+usage: (run-hook-with-args-until-failure HOOK &rest ARGS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
The caller (or its caller, etc) must gcpro all of ARGS,
except that it isn't necessary to gcpro ARGS[0]. */
-Lisp_Object
+static Lisp_Object
run_hook_with_args (nargs, args, cond)
int nargs;
Lisp_Object *args;
{
struct gcpro gcpro1;
#ifdef NO_ARG_ARRAY
- Lisp_Object args[2];
+ Lisp_Object args[2];
args[0] = fn;
args[1] = arg1;
#endif /* not NO_ARG_ARRAY */
}
+/* The caller should GCPRO all the elements of ARGS. */
+
DEFUN ("funcall", Ffuncall, Sfuncall, 1, MANY, 0,
- "Call first argument as a function, passing remaining arguments to it.\n\
-Return the value that function returns.\n\
-Thus, (funcall 'cons 'x 'y) returns (x . y).\n\
-usage: (funcall FUNCTION &rest ARGUMENTS)")
- (nargs, args)
+ doc: /* Call first argument as a function, passing remaining arguments to it.
+Return the value that function returns.
+Thus, (funcall 'cons 'x 'y) returns (x . y).
+usage: (funcall FUNCTION &rest ARGUMENTS) */)
+ (nargs, args)
int nargs;
Lisp_Object *args;
{
register int i;
QUIT;
- if (consing_since_gc > gc_cons_threshold)
+ if ((consing_since_gc > gc_cons_threshold
+ && consing_since_gc > gc_relative_threshold)
+ ||
+ (!NILP (Vmemory_full) && consing_since_gc > memory_full_cons_threshold))
Fgarbage_collect ();
if (++lisp_eval_depth > max_lisp_eval_depth)
if (max_lisp_eval_depth < 100)
max_lisp_eval_depth = 100;
if (lisp_eval_depth > max_lisp_eval_depth)
- error ("Lisp nesting exceeds max-lisp-eval-depth");
+ error ("Lisp nesting exceeds `max-lisp-eval-depth'");
}
backtrace.next = backtrace_list;
if (debug_on_next_call)
do_debug_on_call (Qlambda);
+ CHECK_CONS_LIST ();
+
retry:
fun = args[0];
- fun = Findirect_function (fun);
+ fun = Findirect_function (fun, Qnil);
if (SUBRP (fun))
{
- if (numargs < XSUBR (fun)->min_args
+ if (numargs < XSUBR (fun)->min_args
|| (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < numargs))
{
XSETFASTINT (lisp_numargs, numargs);
val = (*XSUBR (fun)->function) (internal_args[0]);
goto done;
case 2:
- val = (*XSUBR (fun)->function) (internal_args[0],
- internal_args[1]);
+ val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1]);
goto done;
case 3:
val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1],
goto done;
case 4:
val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1],
- internal_args[2],
- internal_args[3]);
+ internal_args[2], internal_args[3]);
goto done;
case 5:
val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1],
default:
/* If a subr takes more than 8 arguments without using MANY
- or UNEVALLED, we need to extend this function to support it.
+ or UNEVALLED, we need to extend this function to support it.
Until this is done, there is no way to call the function. */
abort ();
}
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
if (EQ (funcar, Qlambda))
val = funcall_lambda (fun, numargs, args + 1);
- else if (EQ (funcar, Qmocklisp))
- val = ml_apply (fun, Flist (numargs, args + 1));
else if (EQ (funcar, Qautoload))
{
do_autoload (fun, args[0]);
+ CHECK_CONS_LIST ();
goto retry;
}
else
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
}
done:
+ CHECK_CONS_LIST ();
lisp_eval_depth--;
if (backtrace.debug_on_exit)
val = call_debugger (Fcons (Qexit, Fcons (val, Qnil)));
and return the result of evaluation.
FUN must be either a lambda-expression or a compiled-code object. */
-Lisp_Object
+static Lisp_Object
funcall_lambda (fun, nargs, arg_vector)
Lisp_Object fun;
int nargs;
register Lisp_Object *arg_vector;
{
Lisp_Object val, syms_left, next;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
int i, optional, rest;
- if (NILP (Vmocklisp_arguments))
- specbind (Qmocklisp_arguments, Qt); /* t means NOT mocklisp! */
-
if (CONSP (fun))
{
syms_left = XCDR (fun);
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
}
else if (COMPILEDP (fun))
- syms_left = XVECTOR (fun)->contents[COMPILED_ARGLIST];
+ syms_left = AREF (fun, COMPILED_ARGLIST);
else
abort ();
for (; CONSP (syms_left); syms_left = XCDR (syms_left))
{
QUIT;
-
+
next = XCAR (syms_left);
while (!SYMBOLP (next))
next = Fsignal (Qinvalid_function, Fcons (fun, Qnil));
-
+
if (EQ (next, Qand_rest))
rest = 1;
else if (EQ (next, Qand_optional))
{
/* If we have not actually read the bytecode string
and constants vector yet, fetch them from the file. */
- if (CONSP (XVECTOR (fun)->contents[COMPILED_BYTECODE]))
+ if (CONSP (AREF (fun, COMPILED_BYTECODE)))
Ffetch_bytecode (fun);
- val = Fbyte_code (XVECTOR (fun)->contents[COMPILED_BYTECODE],
- XVECTOR (fun)->contents[COMPILED_CONSTANTS],
- XVECTOR (fun)->contents[COMPILED_STACK_DEPTH]);
+ val = Fbyte_code (AREF (fun, COMPILED_BYTECODE),
+ AREF (fun, COMPILED_CONSTANTS),
+ AREF (fun, COMPILED_STACK_DEPTH));
}
-
+
return unbind_to (count, val);
}
DEFUN ("fetch-bytecode", Ffetch_bytecode, Sfetch_bytecode,
- 1, 1, 0,
- "If byte-compiled OBJECT is lazy-loaded, fetch it now.")
- (object)
+ 1, 1, 0,
+ doc: /* If byte-compiled OBJECT is lazy-loaded, fetch it now. */)
+ (object)
Lisp_Object object;
{
Lisp_Object tem;
- if (COMPILEDP (object)
- && CONSP (XVECTOR (object)->contents[COMPILED_BYTECODE]))
+ if (COMPILEDP (object) && CONSP (AREF (object, COMPILED_BYTECODE)))
{
- tem = read_doc_string (XVECTOR (object)->contents[COMPILED_BYTECODE]);
+ tem = read_doc_string (AREF (object, COMPILED_BYTECODE));
if (!CONSP (tem))
- error ("invalid byte code");
- XVECTOR (object)->contents[COMPILED_BYTECODE] = XCAR (tem);
- XVECTOR (object)->contents[COMPILED_CONSTANTS] = XCDR (tem);
+ {
+ tem = AREF (object, COMPILED_BYTECODE);
+ if (CONSP (tem) && STRINGP (XCAR (tem)))
+ error ("Invalid byte code in %s", SDATA (XCAR (tem)));
+ else
+ error ("Invalid byte code");
+ }
+ AREF (object, COMPILED_BYTECODE) = XCAR (tem);
+ AREF (object, COMPILED_CONSTANTS) = XCDR (tem);
}
return object;
}
void
grow_specpdl ()
{
- register int count = specpdl_ptr - specpdl;
+ register int count = SPECPDL_INDEX ();
if (specpdl_size >= max_specpdl_size)
{
if (max_specpdl_size < 400)
max_specpdl_size = 400;
if (specpdl_size >= max_specpdl_size)
- {
- if (!NILP (Vdebug_on_error))
- /* Leave room for some specpdl in the debugger. */
- max_specpdl_size = specpdl_size + 100;
- Fsignal (Qerror,
- Fcons (build_string ("Variable binding depth exceeds max-specpdl-size"), Qnil));
- }
+ Fsignal (Qerror,
+ Fcons (build_string ("Variable binding depth exceeds max-specpdl-size"), Qnil));
}
specpdl_size *= 2;
if (specpdl_size > max_specpdl_size)
Lisp_Object ovalue;
Lisp_Object valcontents;
- CHECK_SYMBOL (symbol, 0);
+ CHECK_SYMBOL (symbol);
if (specpdl_ptr == specpdl + specpdl_size)
grow_specpdl ();
else
{
Lisp_Object valcontents;
-
+
ovalue = find_symbol_value (symbol);
specpdl_ptr->func = 0;
specpdl_ptr->old_value = ovalue;
Lisp_Object where, current_buffer;
current_buffer = Fcurrent_buffer ();
-
+
/* For a local variable, record both the symbol and which
buffer's or frame's value we are saving. */
if (!NILP (Flocal_variable_p (symbol, Qnil)))
Lisp_Object (*function) P_ ((Lisp_Object));
Lisp_Object arg;
{
+ eassert (!handling_signal);
+
if (specpdl_ptr == specpdl + specpdl_size)
grow_specpdl ();
specpdl_ptr->func = function;
int count;
Lisp_Object value;
{
- int quitf = !NILP (Vquit_flag);
- struct gcpro gcpro1;
+ Lisp_Object quitf = Vquit_flag;
+ struct gcpro gcpro1, gcpro2;
- GCPRO1 (value);
+ GCPRO2 (value, quitf);
Vquit_flag = Qnil;
while (specpdl_ptr != specpdl + count)
{
- --specpdl_ptr;
+ /* Copy the binding, and decrement specpdl_ptr, before we do
+ the work to unbind it. We decrement first
+ so that an error in unbinding won't try to unbind
+ the same entry again, and we copy the binding first
+ in case more bindings are made during some of the code we run. */
+
+ struct specbinding this_binding;
+ this_binding = *--specpdl_ptr;
- if (specpdl_ptr->func != 0)
- (*specpdl_ptr->func) (specpdl_ptr->old_value);
- /* Note that a "binding" of nil is really an unwind protect,
- so in that case the "old value" is a list of forms to evaluate. */
- else if (NILP (specpdl_ptr->symbol))
- Fprogn (specpdl_ptr->old_value);
+ if (this_binding.func != 0)
+ (*this_binding.func) (this_binding.old_value);
/* If the symbol is a list, it is really (SYMBOL WHERE
. CURRENT-BUFFER) where WHERE is either nil, a buffer, or a
frame. If WHERE is a buffer or frame, this indicates we
- bound a variable that had a buffer-local or frmae-local
- binding.. WHERE nil means that the variable had the default
+ bound a variable that had a buffer-local or frame-local
+ binding. WHERE nil means that the variable had the default
value when it was bound. CURRENT-BUFFER is the buffer that
was current when the variable was bound. */
- else if (CONSP (specpdl_ptr->symbol))
+ else if (CONSP (this_binding.symbol))
{
Lisp_Object symbol, where;
- symbol = XCAR (specpdl_ptr->symbol);
- where = XCAR (XCDR (specpdl_ptr->symbol));
+ symbol = XCAR (this_binding.symbol);
+ where = XCAR (XCDR (this_binding.symbol));
if (NILP (where))
- Fset_default (symbol, specpdl_ptr->old_value);
+ Fset_default (symbol, this_binding.old_value);
else if (BUFFERP (where))
- set_internal (symbol, specpdl_ptr->old_value, XBUFFER (where), 1);
- else
- set_internal (symbol, specpdl_ptr->old_value, NULL, 1);
+ set_internal (symbol, this_binding.old_value, XBUFFER (where), 1);
+ else
+ set_internal (symbol, this_binding.old_value, NULL, 1);
}
else
{
/* If variable has a trivial value (no forwarding), we can
just set it. No need to check for constant symbols here,
since that was already done by specbind. */
- if (!MISCP (SYMBOL_VALUE (specpdl_ptr->symbol)))
- SET_SYMBOL_VALUE (specpdl_ptr->symbol, specpdl_ptr->old_value);
+ if (!MISCP (SYMBOL_VALUE (this_binding.symbol)))
+ SET_SYMBOL_VALUE (this_binding.symbol, this_binding.old_value);
else
- set_internal (specpdl_ptr->symbol, specpdl_ptr->old_value, 0, 1);
+ set_internal (this_binding.symbol, this_binding.old_value, 0, 1);
}
}
-
- if (NILP (Vquit_flag) && quitf)
- Vquit_flag = Qt;
+
+ if (NILP (Vquit_flag) && !NILP (quitf))
+ Vquit_flag = quitf;
UNGCPRO;
return value;
}
\f
-#if 0
-
-/* Get the value of symbol's global binding, even if that binding
- is not now dynamically visible. */
-
-Lisp_Object
-top_level_value (symbol)
- Lisp_Object symbol;
-{
- register struct specbinding *ptr = specpdl;
-
- CHECK_SYMBOL (symbol, 0);
- for (; ptr != specpdl_ptr; ptr++)
- {
- if (EQ (ptr->symbol, symbol))
- return ptr->old_value;
- }
- return Fsymbol_value (symbol);
-}
-
-Lisp_Object
-top_level_set (symbol, newval)
- Lisp_Object symbol, newval;
-{
- register struct specbinding *ptr = specpdl;
-
- CHECK_SYMBOL (symbol, 0);
- for (; ptr != specpdl_ptr; ptr++)
- {
- if (EQ (ptr->symbol, symbol))
- {
- ptr->old_value = newval;
- return newval;
- }
- }
- return Fset (symbol, newval);
-}
-
-#endif /* 0 */
-\f
DEFUN ("backtrace-debug", Fbacktrace_debug, Sbacktrace_debug, 2, 2, 0,
- "Set the debug-on-exit flag of eval frame LEVEL levels down to FLAG.\n\
-The debugger is entered when that frame exits, if the flag is non-nil.")
- (level, flag)
+ doc: /* Set the debug-on-exit flag of eval frame LEVEL levels down to FLAG.
+The debugger is entered when that frame exits, if the flag is non-nil. */)
+ (level, flag)
Lisp_Object level, flag;
{
register struct backtrace *backlist = backtrace_list;
register int i;
- CHECK_NUMBER (level, 0);
+ CHECK_NUMBER (level);
for (i = 0; backlist && i < XINT (level); i++)
{
}
DEFUN ("backtrace", Fbacktrace, Sbacktrace, 0, 0, "",
- "Print a trace of Lisp function calls currently active.\n\
-Output stream used is value of `standard-output'.")
- ()
+ doc: /* Print a trace of Lisp function calls currently active.
+Output stream used is value of `standard-output'. */)
+ ()
{
register struct backtrace *backlist = backtrace_list;
register int i;
}
DEFUN ("backtrace-frame", Fbacktrace_frame, Sbacktrace_frame, 1, 1, NULL,
- "Return the function and arguments NFRAMES up from current execution point.\n\
-If that frame has not evaluated the arguments yet (or is a special form),\n\
-the value is (nil FUNCTION ARG-FORMS...).\n\
-If that frame has evaluated its arguments and called its function already,\n\
-the value is (t FUNCTION ARG-VALUES...).\n\
-A &rest arg is represented as the tail of the list ARG-VALUES.\n\
-FUNCTION is whatever was supplied as car of evaluated list,\n\
-or a lambda expression for macro calls.\n\
-If NFRAMES is more than the number of frames, the value is nil.")
- (nframes)
+ doc: /* Return the function and arguments NFRAMES up from current execution point.
+If that frame has not evaluated the arguments yet (or is a special form),
+the value is (nil FUNCTION ARG-FORMS...).
+If that frame has evaluated its arguments and called its function already,
+the value is (t FUNCTION ARG-VALUES...).
+A &rest arg is represented as the tail of the list ARG-VALUES.
+FUNCTION is whatever was supplied as car of evaluated list,
+or a lambda expression for macro calls.
+If NFRAMES is more than the number of frames, the value is nil. */)
+ (nframes)
Lisp_Object nframes;
{
register struct backtrace *backlist = backtrace_list;
register int i;
Lisp_Object tem;
- CHECK_NATNUM (nframes, 0);
+ CHECK_NATNUM (nframes);
/* Find the frame requested. */
for (i = 0; backlist && i < XFASTINT (nframes); i++)
}
\f
+void
+mark_backtrace ()
+{
+ register struct backtrace *backlist;
+ register int i;
+
+ for (backlist = backtrace_list; backlist; backlist = backlist->next)
+ {
+ mark_object (*backlist->function);
+
+ if (backlist->nargs == UNEVALLED || backlist->nargs == MANY)
+ i = 0;
+ else
+ i = backlist->nargs - 1;
+ for (; i >= 0; i--)
+ mark_object (backlist->args[i]);
+ }
+}
+
void
syms_of_eval ()
{
DEFVAR_INT ("max-specpdl-size", &max_specpdl_size,
- "*Limit on number of Lisp variable bindings & unwind-protects.\n\
-If Lisp code tries to make more than this many at once,\n\
-an error is signaled.");
+ doc: /* *Limit on number of Lisp variable bindings and `unwind-protect's.
+If Lisp code tries to increase the total number past this amount,
+an error is signaled.
+You can safely use a value considerably larger than the default value,
+if that proves inconveniently small. However, if you increase it too far,
+Emacs could run out of memory trying to make the stack bigger. */);
DEFVAR_INT ("max-lisp-eval-depth", &max_lisp_eval_depth,
- "*Limit on depth in `eval', `apply' and `funcall' before error.\n\
-This limit is to catch infinite recursions for you before they cause\n\
-actual stack overflow in C, which would be fatal for Emacs.\n\
-You can safely make it considerably larger than its default value,\n\
-if that proves inconveniently small.");
+ doc: /* *Limit on depth in `eval', `apply' and `funcall' before error.
+
+This limit serves to catch infinite recursions for you before they cause
+actual stack overflow in C, which would be fatal for Emacs.
+You can safely make it considerably larger than its default value,
+if that proves inconveniently small. However, if you increase it too far,
+Emacs could overflow the real C stack, and crash. */);
DEFVAR_LISP ("quit-flag", &Vquit_flag,
- "Non-nil causes `eval' to abort, unless `inhibit-quit' is non-nil.\n\
-Typing C-g sets `quit-flag' non-nil, regardless of `inhibit-quit'.");
+ doc: /* Non-nil causes `eval' to abort, unless `inhibit-quit' is non-nil.
+If the value is t, that means do an ordinary quit.
+If the value equals `throw-on-input', that means quit by throwing
+to the tag specified in `throw-on-input'; it's for handling `while-no-input'.
+Typing C-g sets `quit-flag' to t, regardless of `inhibit-quit',
+but `inhibit-quit' non-nil prevents anything from taking notice of that. */);
Vquit_flag = Qnil;
DEFVAR_LISP ("inhibit-quit", &Vinhibit_quit,
- "Non-nil inhibits C-g quitting from happening immediately.\n\
-Note that `quit-flag' will still be set by typing C-g,\n\
-so a quit will be signaled as soon as `inhibit-quit' is nil.\n\
-To prevent this happening, set `quit-flag' to nil\n\
-before making `inhibit-quit' nil.");
+ doc: /* Non-nil inhibits C-g quitting from happening immediately.
+Note that `quit-flag' will still be set by typing C-g,
+so a quit will be signaled as soon as `inhibit-quit' is nil.
+To prevent this happening, set `quit-flag' to nil
+before making `inhibit-quit' nil. */);
Vinhibit_quit = Qnil;
Qinhibit_quit = intern ("inhibit-quit");
Qmacro = intern ("macro");
staticpro (&Qmacro);
+ Qdeclare = intern ("declare");
+ staticpro (&Qdeclare);
+
/* Note that the process handling also uses Qexit, but we don't want
to staticpro it twice, so we just do it here. */
Qexit = intern ("exit");
staticpro (&Qand_optional);
DEFVAR_LISP ("stack-trace-on-error", &Vstack_trace_on_error,
- "*Non-nil means automatically display a backtrace buffer\n\
-after any error that is handled by the editor command loop.\n\
-If the value is a list, an error only means to display a backtrace\n\
-if one of its condition symbols appears in the list.");
+ doc: /* *Non-nil means errors display a backtrace buffer.
+More precisely, this happens for any error that is handled
+by the editor command loop.
+If the value is a list, an error only means to display a backtrace
+if one of its condition symbols appears in the list. */);
Vstack_trace_on_error = Qnil;
DEFVAR_LISP ("debug-on-error", &Vdebug_on_error,
- "*Non-nil means enter debugger if an error is signaled.\n\
-Does not apply to errors handled by `condition-case' or those\n\
-matched by `debug-ignored-errors'.\n\
-If the value is a list, an error only means to enter the debugger\n\
-if one of its condition symbols appears in the list.\n\
-When you evaluate an expression interactively, this variable\n\
-is temporarily non-nil if `eval-expression-debug-on-error' is non-nil.\n\
-See also variable `debug-on-quit'.");
+ doc: /* *Non-nil means enter debugger if an error is signaled.
+Does not apply to errors handled by `condition-case' or those
+matched by `debug-ignored-errors'.
+If the value is a list, an error only means to enter the debugger
+if one of its condition symbols appears in the list.
+When you evaluate an expression interactively, this variable
+is temporarily non-nil if `eval-expression-debug-on-error' is non-nil.
+See also variable `debug-on-quit'. */);
Vdebug_on_error = Qnil;
DEFVAR_LISP ("debug-ignored-errors", &Vdebug_ignored_errors,
- "*List of errors for which the debugger should not be called.\n\
-Each element may be a condition-name or a regexp that matches error messages.\n\
-If any element applies to a given error, that error skips the debugger\n\
-and just returns to top level.\n\
-This overrides the variable `debug-on-error'.\n\
-It does not apply to errors handled by `condition-case'.");
+ doc: /* *List of errors for which the debugger should not be called.
+Each element may be a condition-name or a regexp that matches error messages.
+If any element applies to a given error, that error skips the debugger
+and just returns to top level.
+This overrides the variable `debug-on-error'.
+It does not apply to errors handled by `condition-case'. */);
Vdebug_ignored_errors = Qnil;
DEFVAR_BOOL ("debug-on-quit", &debug_on_quit,
- "*Non-nil means enter debugger if quit is signaled (C-g, for example).\n\
-Does not apply if quit is handled by a `condition-case'.\n\
-When you evaluate an expression interactively, this variable\n\
-is temporarily non-nil if `eval-expression-debug-on-quit' is non-nil.");
+ doc: /* *Non-nil means enter debugger if quit is signaled (C-g, for example).
+Does not apply if quit is handled by a `condition-case'. */);
debug_on_quit = 0;
DEFVAR_BOOL ("debug-on-next-call", &debug_on_next_call,
- "Non-nil means enter debugger before next `eval', `apply' or `funcall'.");
+ doc: /* Non-nil means enter debugger before next `eval', `apply' or `funcall'. */);
DEFVAR_BOOL ("debugger-may-continue", &debugger_may_continue,
- "Non-nil means debugger may continue execution.\n\
-This is nil when the debugger is called under circumstances where it\n\
-might not be safe to continue.");
+ doc: /* Non-nil means debugger may continue execution.
+This is nil when the debugger is called under circumstances where it
+might not be safe to continue. */);
debugger_may_continue = 1;
DEFVAR_LISP ("debugger", &Vdebugger,
- "Function to call to invoke debugger.\n\
-If due to frame exit, args are `exit' and the value being returned;\n\
- this function's value will be returned instead of that.\n\
-If due to error, args are `error' and a list of the args to `signal'.\n\
-If due to `apply' or `funcall' entry, one arg, `lambda'.\n\
-If due to `eval' entry, one arg, t.");
+ doc: /* Function to call to invoke debugger.
+If due to frame exit, args are `exit' and the value being returned;
+ this function's value will be returned instead of that.
+If due to error, args are `error' and a list of the args to `signal'.
+If due to `apply' or `funcall' entry, one arg, `lambda'.
+If due to `eval' entry, one arg, t. */);
Vdebugger = Qnil;
DEFVAR_LISP ("signal-hook-function", &Vsignal_hook_function,
- "If non-nil, this is a function for `signal' to call.\n\
-It receives the same arguments that `signal' was given.\n\
-The Edebug package uses this to regain control.");
+ doc: /* If non-nil, this is a function for `signal' to call.
+It receives the same arguments that `signal' was given.
+The Edebug package uses this to regain control. */);
Vsignal_hook_function = Qnil;
- Qmocklisp_arguments = intern ("mocklisp-arguments");
- staticpro (&Qmocklisp_arguments);
- DEFVAR_LISP ("mocklisp-arguments", &Vmocklisp_arguments,
- "While in a mocklisp function, the list of its unevaluated args.");
- Vmocklisp_arguments = Qt;
-
DEFVAR_LISP ("debug-on-signal", &Vdebug_on_signal,
- "*Non-nil means call the debugger regardless of condition handlers.\n\
-Note that `debug-on-error', `debug-on-quit' and friends\n\
-still determine whether to handle the particular condition.");
+ doc: /* *Non-nil means call the debugger regardless of condition handlers.
+Note that `debug-on-error', `debug-on-quit' and friends
+still determine whether to handle the particular condition. */);
Vdebug_on_signal = Qnil;
+ DEFVAR_LISP ("macro-declaration-function", &Vmacro_declaration_function,
+ doc: /* Function to process declarations in a macro definition.
+The function will be called with two args MACRO and DECL.
+MACRO is the name of the macro being defined.
+DECL is a list `(declare ...)' containing the declarations.
+The value the function returns is not used. */);
+ Vmacro_declaration_function = Qnil;
+
Vrun_hooks = intern ("run-hooks");
staticpro (&Vrun_hooks);
defsubr (&Scondition_case);
defsubr (&Ssignal);
defsubr (&Sinteractive_p);
+ defsubr (&Scalled_interactively_p);
defsubr (&Scommandp);
defsubr (&Sautoload);
defsubr (&Seval);
defsubr (&Sbacktrace);
defsubr (&Sbacktrace_frame);
}
+
+/* arch-tag: 014a07aa-33ab-4a8f-a3d2-ee8a4a9ff7fb
+ (do not change this comment) */