/* Evaluator for GNU Emacs Lisp interpreter.
-Copyright (C) 1985-1987, 1993-1995, 1999-2014 Free Software Foundation,
+Copyright (C) 1985-1987, 1993-1995, 1999-2015 Free Software Foundation,
Inc.
This file is part of GNU Emacs.
#include "commands.h"
#include "keyboard.h"
#include "dispextern.h"
+#include "buffer.h"
/* Chain of condition and catch handlers currently in effect. */
int gcpro_level;
#endif
-Lisp_Object Qautoload, Qmacro, Qexit, Qinteractive, Qcommandp;
-Lisp_Object Qinhibit_quit;
-Lisp_Object Qand_rest;
-static Lisp_Object Qand_optional;
-static Lisp_Object Qinhibit_debugger;
-static Lisp_Object Qdeclare;
-Lisp_Object Qinternal_interpreter_environment, Qclosure;
-
-static Lisp_Object Qdebug;
-
-/* This holds either the symbol `run-hooks' or nil.
- It is nil at an early stage of startup, and when Emacs
- is shutting down. */
-
-Lisp_Object Vrun_hooks;
-
/* 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:
Lisp_Object Vautoload_queue;
+/* This holds either the symbol `run-hooks' or nil.
+ It is nil at an early stage of startup, and when Emacs
+ is shutting down. */
+Lisp_Object Vrun_hooks;
+
/* Current number of specbindings allocated in specpdl, not counting
the dummy entry specpdl[-1]. */
DEFUN ("throw", Fthrow, Sthrow, 2, 2, 0,
doc: /* Throw to the catch for TAG and return VALUE from it.
-Both TAG and VALUE are evalled. */)
+Both TAG and VALUE are evalled. */
+ attributes: noreturn)
(register Lisp_Object tag, Lisp_Object value)
{
struct handler *c;
|| NILP (clause)
/* A `debug' symbol in the handler list disables the normal
suppression of the debugger. */
- || (CONSP (clause) && CONSP (clause)
- && !NILP (Fmemq (Qdebug, clause)))
+ || (CONSP (clause) && !NILP (Fmemq (Qdebug, clause)))
/* Special handler that means "print a message and run debugger
if requested". */
|| EQ (h->tag_or_ch, Qerror)))
If non-nil, FUNNAME should be the symbol whose function value is FUNDEF,
in which case the function returns the new autoloaded function value.
If equal to `macro', MACRO-ONLY specifies that FUNDEF should only be loaded if
-it is defines a macro. */)
+it defines a macro. */)
(Lisp_Object fundef, Lisp_Object funname, Lisp_Object macro_only)
{
ptrdiff_t count = SPECPDL_INDEX ();
(ptrdiff_t nargs, Lisp_Object *args)
{
ptrdiff_t i, numargs, funcall_nargs;
- register Lisp_Object spread_arg;
- register Lisp_Object *funcall_args;
- Lisp_Object fun, retval;
+ register Lisp_Object *funcall_args = NULL;
+ register Lisp_Object spread_arg = args[nargs - 1];
+ Lisp_Object fun = args[0];
+ Lisp_Object retval;
USE_SAFE_ALLOCA;
- fun = args [0];
- funcall_args = 0;
- spread_arg = args [nargs - 1];
CHECK_LIST (spread_arg);
numargs = XINT (Flength (spread_arg));
/* Optimize for no indirection. */
if (SYMBOLP (fun) && !NILP (fun)
&& (fun = XSYMBOL (fun)->function, SYMBOLP (fun)))
- fun = indirect_function (fun);
- if (NILP (fun))
{
- /* Let funcall get the error. */
- fun = args[0];
- goto funcall;
+ fun = indirect_function (fun);
+ if (NILP (fun))
+ /* Let funcall get the error. */
+ fun = args[0];
}
- if (SUBRP (fun))
+ if (SUBRP (fun) && XSUBR (fun)->max_args > numargs
+ /* Don't hide an error by adding missing arguments. */
+ && numargs >= XSUBR (fun)->min_args)
{
- if (numargs < XSUBR (fun)->min_args
- || (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < numargs))
- goto funcall; /* Let funcall get the error. */
- else if (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args > numargs)
- {
- /* Avoid making funcall cons up a yet another new vector of arguments
- by explicitly supplying nil's for optional values. */
- SAFE_ALLOCA_LISP (funcall_args, 1 + XSUBR (fun)->max_args);
- for (i = numargs; i < XSUBR (fun)->max_args; /* nothing */)
- funcall_args[++i] = Qnil;
- funcall_nargs = 1 + XSUBR (fun)->max_args;
- }
+ /* Avoid making funcall cons up a yet another new vector of arguments
+ by explicitly supplying nil's for optional values. */
+ SAFE_ALLOCA_LISP (funcall_args, 1 + XSUBR (fun)->max_args);
+ for (i = numargs; i < XSUBR (fun)->max_args; /* nothing */)
+ funcall_args[++i] = Qnil;
+ funcall_nargs = 1 + XSUBR (fun)->max_args;
}
- funcall:
- /* We add 1 to numargs because funcall_args includes the
- function itself as well as its arguments. */
- if (!funcall_args)
- {
+ else
+ { /* We add 1 to numargs because funcall_args includes the
+ function itself as well as its arguments. */
SAFE_ALLOCA_LISP (funcall_args, 1 + numargs);
funcall_nargs = 1 + numargs;
}
usage: (run-hooks &rest HOOKS) */)
(ptrdiff_t nargs, Lisp_Object *args)
{
- Lisp_Object hook[1];
ptrdiff_t i;
for (i = 0; i < nargs; i++)
- {
- hook[0] = args[i];
- run_hook_with_args (1, hook, funcall_nil);
- }
+ run_hook (args[i]);
return Qnil;
}
}
}
+/* Run the hook HOOK, giving each function no args. */
+
+void
+run_hook (Lisp_Object hook)
+{
+ Frun_hook_with_args (1, &hook);
+}
+
/* Run the hook HOOK, giving each function the two args ARG1 and ARG2. */
void
for (; distance > 0; distance--)
{
tmp += step;
- /* */
switch (tmp->kind)
{
/* FIXME: Ideally we'd like to "temporarily unwind" (some of) those
unwind_protect, but the problem is that we don't know how to
rewind them afterwards. */
case SPECPDL_UNWIND:
+ {
+ Lisp_Object oldarg = tmp->unwind.arg;
+ if (tmp->unwind.func == set_buffer_if_live)
+ tmp->unwind.arg = Fcurrent_buffer ();
+ else if (tmp->unwind.func == save_excursion_restore)
+ tmp->unwind.arg = save_excursion_save ();
+ else
+ break;
+ tmp->unwind.func (oldarg);
+ break;
+ }
+
case SPECPDL_UNWIND_PTR:
case SPECPDL_UNWIND_INT:
case SPECPDL_UNWIND_VOID:
(Just imagine if someone makes it buffer-local). */
Funintern (Qinternal_interpreter_environment, Qnil);
- DEFSYM (Vrun_hooks, "run-hooks");
+ Vrun_hooks = intern_c_string ("run-hooks");
+ staticpro (&Vrun_hooks);
staticpro (&Vautoload_queue);
Vautoload_queue = Qnil;