/* Evaluator for GNU Emacs Lisp interpreter.
Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <config.h>
+#include <setjmp.h>
#include "lisp.h"
#include "blockinput.h"
#include "commands.h"
#include "keyboard.h"
#include "dispextern.h"
-#include <setjmp.h>
#if HAVE_X_WINDOWS
#include "xterm.h"
struct backtrace *backtrace_list;
-/* This structure helps implement the `catch' and `throw' control
- structure. A struct catchtag contains all the information needed
- to restore the state of the interpreter after a non-local jump.
-
- Handlers for error conditions (represented by `struct handler'
- structures) just point to a catch tag to do the cleanup required
- for their jumps.
-
- catchtag structures are chained together in the C calling stack;
- the `next' member points to the next outer catchtag.
-
- A call like (throw TAG VAL) searches for a catchtag whose `tag'
- member is TAG, and then unbinds to it. The `val' member is used to
- hold VAL while the stack is unwound; `val' is returned as the value
- of the catch form.
-
- All the other members are concerned with restoring the interpreter
- state. */
-
-struct catchtag
-{
- Lisp_Object tag;
- Lisp_Object val;
- struct catchtag *next;
- struct gcpro *gcpro;
- jmp_buf jmp;
- struct backtrace *backlist;
- struct handler *handlerlist;
- int lisp_eval_depth;
- int pdlcount;
- int poll_suppress_count;
- int interrupt_input_blocked;
- struct byte_stack *byte_stack;
-};
-
struct catchtag *catchlist;
#ifdef DEBUG_GCPRO
Lisp_Object Qdebug_on_error;
Lisp_Object Qdeclare;
Lisp_Object Qdebug;
+extern Lisp_Object Qinteractive_form;
/* This holds either the symbol `run-hooks' or nil.
It is nil at an early stage of startup, and when Emacs
specpdl_ptr = specpdl;
/* Don't forget to update docs (lispref node "Local Variables"). */
max_specpdl_size = 1000;
- max_lisp_eval_depth = 400;
+ max_lisp_eval_depth = 500;
Vrun_hooks = Qnil;
}
DEFUN ("interactive-p", Finteractive_p, Sinteractive_p, 0, 0, 0,
- doc: /* Return t if the function was run directly by user input.
+ doc: /* Return t if the containing 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 input is currently coming from the keyboard (not a 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
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.) */)
+To test whether your function was called with `call-interactively',
+either (i) add an extra optional argument and give it an `interactive'
+spec that specifies non-nil unconditionally (such as \"p\"); or (ii)
+use `called-interactively-p'. */)
()
{
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.
+DEFUN ("called-interactively-p", Fcalled_interactively_p, Scalled_interactively_p, 0, 1, 0,
+ doc: /* Return t if the containing function was called by `call-interactively'.
+If KIND is `interactive', then only return t if the call was made
+interactively by the user, i.e. not in `noninteractive' mode nor
+when `executing-kbd-macro'.
+If KIND is `any', on the other hand, it will return t for any kind of
+interactive call, including being called as the binding of a key, or
+from a keyboard macro, or in `noninteractive' mode.
-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.) */)
- ()
+The only known proper use of `interactive' for KIND 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?
+
+This function is meant for implementing advice and other
+function-modifying features. Instead of using this, it is sometimes
+cleaner to give your function an extra optional argument whose
+`interactive' spec specifies non-nil unconditionally (\"p\" is a good
+way to do this), or via (not (or executing-kbd-macro noninteractive)). */)
+ (kind)
+ Lisp_Object kind;
{
- return interactive_p (1) ? Qt : Qnil;
+ return ((INTERACTIVE || !EQ (kind, intern ("interactive")))
+ && interactive_p (1)) ? Qt : Qnil;
}
{
if (!NILP (sig) && wants_debugger (Vstack_trace_on_error, conditions))
{
+ max_lisp_eval_depth += 15;
max_specpdl_size++;
- #ifdef PROTOTYPES
- 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 (noninteractive)
+ Fbacktrace ();
+ else
+ internal_with_output_to_temp_buffer
+ ("*Backtrace*",
+ (Lisp_Object (*) (Lisp_Object)) Fbacktrace,
+ Qnil);
max_specpdl_size--;
+ max_lisp_eval_depth -= 15;
}
if (!debugger_considered)
fun = function;
while (SYMBOLP (fun))
{
- Lisp_Object tmp = Fget (fun, intern ("interactive-form"));
+ Lisp_Object tmp = Fget (fun, Qinteractive_form);
if (!NILP (tmp))
if_prop = Qt;
fun = Fsymbol_function (fun);
return Qnil;
}
-/* ARGSUSED */
DEFUN ("autoload", Fautoload, Sautoload, 2, 5, 0,
doc: /* Define FUNCTION to autoload from FILE.
FUNCTION is a symbol; FILE is a file name string to pass to `load'.
(function, file, docstring, interactive, type)
Lisp_Object function, file, docstring, interactive, type;
{
-#ifdef NO_ARG_ARRAY
Lisp_Object args[4];
-#endif
CHECK_SYMBOL (function);
CHECK_STRING (file);
/* Only add entries after dumping, because the ones before are
not useful and else we get loads of them from the loaddefs.el. */
LOADHIST_ATTACH (Fcons (Qautoload, function));
-
-#ifdef NO_ARG_ARRAY
- args[0] = file;
- args[1] = docstring;
- args[2] = interactive;
- args[3] = type;
-
- return Ffset (function, Fcons (Qautoload, Flist (4, &args[0])));
-#else /* NO_ARG_ARRAY */
- return Ffset (function, Fcons (Qautoload, Flist (4, &file)));
-#endif /* not NO_ARG_ARRAY */
+ else
+ /* We don't want the docstring in purespace (instead,
+ Snarf-documentation should (hopefully) overwrite it). */
+ docstring = make_number (0);
+ return Ffset (function,
+ Fpurecopy (list5 (Qautoload, file, docstring,
+ interactive, type)));
}
Lisp_Object
enum run_hooks_condition cond;
{
Lisp_Object sym, val, ret;
- Lisp_Object globals;
struct gcpro gcpro1, gcpro2, gcpro3;
/* If we are dying or still initializing,
}
else
{
- globals = Qnil;
+ Lisp_Object globals = Qnil;
GCPRO3 (sym, val, globals);
for (;
{
/* t indicates this hook has a local binding;
it means to run the global binding too. */
+ globals = Fdefault_value (sym);
+ if (NILP (globals)) continue;
- for (globals = Fdefault_value (sym);
- CONSP (globals) && ((cond == to_completion)
- || (cond == until_success ? NILP (ret)
- : !NILP (ret)));
- globals = XCDR (globals))
+ if (!CONSP (globals) || EQ (XCAR (globals), Qlambda))
+ {
+ args[0] = globals;
+ ret = Ffuncall (nargs, args);
+ }
+ else
{
- args[0] = XCAR (globals);
- /* In a global value, t should not occur. If it does, we
- must ignore it to avoid an endless loop. */
- if (!EQ (args[0], Qt))
- ret = Ffuncall (nargs, args);
+ for (;
+ CONSP (globals) && ((cond == to_completion)
+ || (cond == until_success ? NILP (ret)
+ : !NILP (ret)));
+ globals = XCDR (globals))
+ {
+ args[0] = XCAR (globals);
+ /* In a global value, t should not occur. If it does, we
+ must ignore it to avoid an endless loop. */
+ if (!EQ (args[0], Qt))
+ ret = Ffuncall (nargs, args);
+ }
}
}
else
before making `inhibit-quit' nil. */);
Vinhibit_quit = Qnil;
- Qinhibit_quit = intern ("inhibit-quit");
+ Qinhibit_quit = intern_c_string ("inhibit-quit");
staticpro (&Qinhibit_quit);
- Qautoload = intern ("autoload");
+ Qautoload = intern_c_string ("autoload");
staticpro (&Qautoload);
- Qdebug_on_error = intern ("debug-on-error");
+ Qdebug_on_error = intern_c_string ("debug-on-error");
staticpro (&Qdebug_on_error);
- Qmacro = intern ("macro");
+ Qmacro = intern_c_string ("macro");
staticpro (&Qmacro);
- Qdeclare = intern ("declare");
+ Qdeclare = intern_c_string ("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");
+ Qexit = intern_c_string ("exit");
staticpro (&Qexit);
- Qinteractive = intern ("interactive");
+ Qinteractive = intern_c_string ("interactive");
staticpro (&Qinteractive);
- Qcommandp = intern ("commandp");
+ Qcommandp = intern_c_string ("commandp");
staticpro (&Qcommandp);
- Qdefun = intern ("defun");
+ Qdefun = intern_c_string ("defun");
staticpro (&Qdefun);
- Qand_rest = intern ("&rest");
+ Qand_rest = intern_c_string ("&rest");
staticpro (&Qand_rest);
- Qand_optional = intern ("&optional");
+ Qand_optional = intern_c_string ("&optional");
staticpro (&Qand_optional);
- Qdebug = intern ("debug");
+ Qdebug = intern_c_string ("debug");
staticpro (&Qdebug);
DEFVAR_LISP ("stack-trace-on-error", &Vstack_trace_on_error,
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'. */);
+The command `toggle-debug-on-error' toggles this.
+See also the variable `debug-on-quit'. */);
Vdebug_on_error = Qnil;
DEFVAR_LISP ("debug-ignored-errors", &Vdebug_ignored_errors,
The value the function returns is not used. */);
Vmacro_declaration_function = Qnil;
- Vrun_hooks = intern ("run-hooks");
+ Vrun_hooks = intern_c_string ("run-hooks");
staticpro (&Vrun_hooks);
staticpro (&Vautoload_queue);
HCoop / bpt / emacs.git / blobdiff