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db9f0278 | 1 | /* Evaluator for GNU Emacs Lisp interpreter. |
96277b2d | 2 | Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995 Free Software Foundation, Inc. |
db9f0278 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
96277b2d | 8 | the Free Software Foundation; either version 2, or (at your option) |
db9f0278 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
db9f0278 JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
dfcf069d AS |
23 | |
24 | #ifdef STDC_HEADERS | |
25 | #include <stdlib.h> | |
26 | #endif | |
27 | ||
db9f0278 | 28 | #include "lisp.h" |
9ac0d9e0 | 29 | #include "blockinput.h" |
db9f0278 JB |
30 | |
31 | #ifndef standalone | |
32 | #include "commands.h" | |
1f98fa48 | 33 | #include "keyboard.h" |
db9f0278 JB |
34 | #else |
35 | #define INTERACTIVE 1 | |
36 | #endif | |
37 | ||
38 | #include <setjmp.h> | |
39 | ||
40 | /* This definition is duplicated in alloc.c and keyboard.c */ | |
41 | /* Putting it in lisp.h makes cc bomb out! */ | |
42 | ||
43 | struct backtrace | |
44 | { | |
45 | struct backtrace *next; | |
46 | Lisp_Object *function; | |
47 | Lisp_Object *args; /* Points to vector of args. */ | |
daa37602 JB |
48 | int nargs; /* Length of vector. |
49 | If nargs is UNEVALLED, args points to slot holding | |
50 | list of unevalled args */ | |
db9f0278 JB |
51 | char evalargs; |
52 | /* Nonzero means call value of debugger when done with this operation. */ | |
53 | char debug_on_exit; | |
54 | }; | |
55 | ||
56 | struct backtrace *backtrace_list; | |
57 | ||
82da7701 JB |
58 | /* This structure helps implement the `catch' and `throw' control |
59 | structure. A struct catchtag contains all the information needed | |
60 | to restore the state of the interpreter after a non-local jump. | |
61 | ||
62 | Handlers for error conditions (represented by `struct handler' | |
63 | structures) just point to a catch tag to do the cleanup required | |
64 | for their jumps. | |
65 | ||
66 | catchtag structures are chained together in the C calling stack; | |
67 | the `next' member points to the next outer catchtag. | |
68 | ||
69 | A call like (throw TAG VAL) searches for a catchtag whose `tag' | |
70 | member is TAG, and then unbinds to it. The `val' member is used to | |
71 | hold VAL while the stack is unwound; `val' is returned as the value | |
72 | of the catch form. | |
73 | ||
74 | All the other members are concerned with restoring the interpreter | |
75 | state. */ | |
db9f0278 JB |
76 | struct catchtag |
77 | { | |
78 | Lisp_Object tag; | |
79 | Lisp_Object val; | |
80 | struct catchtag *next; | |
81 | struct gcpro *gcpro; | |
82 | jmp_buf jmp; | |
83 | struct backtrace *backlist; | |
84 | struct handler *handlerlist; | |
85 | int lisp_eval_depth; | |
86 | int pdlcount; | |
87 | int poll_suppress_count; | |
88 | }; | |
89 | ||
90 | struct catchtag *catchlist; | |
91 | ||
92 | Lisp_Object Qautoload, Qmacro, Qexit, Qinteractive, Qcommandp, Qdefun; | |
ad236261 | 93 | Lisp_Object Qinhibit_quit, Vinhibit_quit, Vquit_flag; |
db9f0278 JB |
94 | Lisp_Object Qmocklisp_arguments, Vmocklisp_arguments, Qmocklisp; |
95 | Lisp_Object Qand_rest, Qand_optional; | |
96 | Lisp_Object Qdebug_on_error; | |
97 | ||
6e6e9f08 RS |
98 | /* This holds either the symbol `run-hooks' or nil. |
99 | It is nil at an early stage of startup, and when Emacs | |
100 | is shutting down. */ | |
db9f0278 JB |
101 | Lisp_Object Vrun_hooks; |
102 | ||
103 | /* Non-nil means record all fset's and provide's, to be undone | |
104 | if the file being autoloaded is not fully loaded. | |
105 | They are recorded by being consed onto the front of Vautoload_queue: | |
106 | (FUN . ODEF) for a defun, (OFEATURES . nil) for a provide. */ | |
107 | ||
108 | Lisp_Object Vautoload_queue; | |
109 | ||
110 | /* Current number of specbindings allocated in specpdl. */ | |
111 | int specpdl_size; | |
112 | ||
113 | /* Pointer to beginning of specpdl. */ | |
114 | struct specbinding *specpdl; | |
115 | ||
116 | /* Pointer to first unused element in specpdl. */ | |
117 | struct specbinding *specpdl_ptr; | |
118 | ||
119 | /* Maximum size allowed for specpdl allocation */ | |
120 | int max_specpdl_size; | |
121 | ||
122 | /* Depth in Lisp evaluations and function calls. */ | |
123 | int lisp_eval_depth; | |
124 | ||
125 | /* Maximum allowed depth in Lisp evaluations and function calls. */ | |
126 | int max_lisp_eval_depth; | |
127 | ||
128 | /* Nonzero means enter debugger before next function call */ | |
129 | int debug_on_next_call; | |
130 | ||
128c0f66 | 131 | /* List of conditions (non-nil atom means all) which cause a backtrace |
4de86b16 | 132 | if an error is handled by the command loop's error handler. */ |
128c0f66 | 133 | Lisp_Object Vstack_trace_on_error; |
db9f0278 | 134 | |
128c0f66 | 135 | /* List of conditions (non-nil atom means all) which enter the debugger |
4de86b16 | 136 | if an error is handled by the command loop's error handler. */ |
128c0f66 | 137 | Lisp_Object Vdebug_on_error; |
db9f0278 | 138 | |
fc950e09 KH |
139 | /* List of conditions and regexps specifying error messages which |
140 | do not enter the debugger even if Vdebug_on_errors says they should. */ | |
141 | Lisp_Object Vdebug_ignored_errors; | |
142 | ||
61ede770 | 143 | /* Non-nil means call the debugger even if the error will be handled. */ |
57a6e758 | 144 | Lisp_Object Vdebug_on_signal; |
61ede770 RS |
145 | |
146 | /* Hook for edebug to use. */ | |
147 | Lisp_Object Vsignal_hook_function; | |
148 | ||
db9f0278 | 149 | /* Nonzero means enter debugger if a quit signal |
128c0f66 | 150 | is handled by the command loop's error handler. */ |
db9f0278 JB |
151 | int debug_on_quit; |
152 | ||
be857679 | 153 | /* The value of num_nonmacro_input_events as of the last time we |
82da7701 | 154 | started to enter the debugger. If we decide to enter the debugger |
be857679 | 155 | again when this is still equal to num_nonmacro_input_events, then we |
82da7701 JB |
156 | know that the debugger itself has an error, and we should just |
157 | signal the error instead of entering an infinite loop of debugger | |
158 | invocations. */ | |
159 | int when_entered_debugger; | |
db9f0278 JB |
160 | |
161 | Lisp_Object Vdebugger; | |
162 | ||
163 | void specbind (), record_unwind_protect (); | |
164 | ||
420e60e6 RS |
165 | Lisp_Object run_hook_with_args (); |
166 | ||
db9f0278 JB |
167 | Lisp_Object funcall_lambda (); |
168 | extern Lisp_Object ml_apply (); /* Apply a mocklisp function to unevaluated argument list */ | |
169 | ||
dfcf069d | 170 | void |
db9f0278 JB |
171 | init_eval_once () |
172 | { | |
173 | specpdl_size = 50; | |
716acfce | 174 | specpdl = (struct specbinding *) xmalloc (specpdl_size * sizeof (struct specbinding)); |
270e8074 | 175 | specpdl_ptr = specpdl; |
db9f0278 | 176 | max_specpdl_size = 600; |
969f5145 | 177 | max_lisp_eval_depth = 300; |
34d470ba RS |
178 | |
179 | Vrun_hooks = Qnil; | |
db9f0278 JB |
180 | } |
181 | ||
dfcf069d | 182 | void |
db9f0278 JB |
183 | init_eval () |
184 | { | |
185 | specpdl_ptr = specpdl; | |
186 | catchlist = 0; | |
187 | handlerlist = 0; | |
188 | backtrace_list = 0; | |
189 | Vquit_flag = Qnil; | |
190 | debug_on_next_call = 0; | |
191 | lisp_eval_depth = 0; | |
be857679 | 192 | /* This is less than the initial value of num_nonmacro_input_events. */ |
b5b911f9 | 193 | when_entered_debugger = -1; |
db9f0278 JB |
194 | } |
195 | ||
196 | Lisp_Object | |
197 | call_debugger (arg) | |
198 | Lisp_Object arg; | |
199 | { | |
200 | if (lisp_eval_depth + 20 > max_lisp_eval_depth) | |
201 | max_lisp_eval_depth = lisp_eval_depth + 20; | |
202 | if (specpdl_size + 40 > max_specpdl_size) | |
203 | max_specpdl_size = specpdl_size + 40; | |
204 | debug_on_next_call = 0; | |
be857679 | 205 | when_entered_debugger = num_nonmacro_input_events; |
db9f0278 JB |
206 | return apply1 (Vdebugger, arg); |
207 | } | |
208 | ||
dfcf069d | 209 | void |
db9f0278 JB |
210 | do_debug_on_call (code) |
211 | Lisp_Object code; | |
212 | { | |
213 | debug_on_next_call = 0; | |
214 | backtrace_list->debug_on_exit = 1; | |
215 | call_debugger (Fcons (code, Qnil)); | |
216 | } | |
217 | \f | |
218 | /* NOTE!!! Every function that can call EVAL must protect its args | |
219 | and temporaries from garbage collection while it needs them. | |
220 | The definition of `For' shows what you have to do. */ | |
221 | ||
222 | DEFUN ("or", For, Sor, 0, UNEVALLED, 0, | |
223 | "Eval args until one of them yields non-nil, then return that value.\n\ | |
224 | The remaining args are not evalled at all.\n\ | |
225 | If all args return nil, return nil.") | |
226 | (args) | |
227 | Lisp_Object args; | |
228 | { | |
229 | register Lisp_Object val; | |
230 | Lisp_Object args_left; | |
231 | struct gcpro gcpro1; | |
232 | ||
265a9e55 | 233 | if (NILP(args)) |
db9f0278 JB |
234 | return Qnil; |
235 | ||
236 | args_left = args; | |
237 | GCPRO1 (args_left); | |
238 | ||
239 | do | |
240 | { | |
241 | val = Feval (Fcar (args_left)); | |
265a9e55 | 242 | if (!NILP (val)) |
db9f0278 JB |
243 | break; |
244 | args_left = Fcdr (args_left); | |
245 | } | |
265a9e55 | 246 | while (!NILP(args_left)); |
db9f0278 JB |
247 | |
248 | UNGCPRO; | |
249 | return val; | |
250 | } | |
251 | ||
252 | DEFUN ("and", Fand, Sand, 0, UNEVALLED, 0, | |
253 | "Eval args until one of them yields nil, then return nil.\n\ | |
254 | The remaining args are not evalled at all.\n\ | |
255 | If no arg yields nil, return the last arg's value.") | |
256 | (args) | |
257 | Lisp_Object args; | |
258 | { | |
259 | register Lisp_Object val; | |
260 | Lisp_Object args_left; | |
261 | struct gcpro gcpro1; | |
262 | ||
265a9e55 | 263 | if (NILP(args)) |
db9f0278 JB |
264 | return Qt; |
265 | ||
266 | args_left = args; | |
267 | GCPRO1 (args_left); | |
268 | ||
269 | do | |
270 | { | |
271 | val = Feval (Fcar (args_left)); | |
265a9e55 | 272 | if (NILP (val)) |
db9f0278 JB |
273 | break; |
274 | args_left = Fcdr (args_left); | |
275 | } | |
265a9e55 | 276 | while (!NILP(args_left)); |
db9f0278 JB |
277 | |
278 | UNGCPRO; | |
279 | return val; | |
280 | } | |
281 | ||
282 | DEFUN ("if", Fif, Sif, 2, UNEVALLED, 0, | |
283 | "(if COND THEN ELSE...): if COND yields non-nil, do THEN, else do ELSE...\n\ | |
284 | Returns the value of THEN or the value of the last of the ELSE's.\n\ | |
285 | THEN must be one expression, but ELSE... can be zero or more expressions.\n\ | |
286 | If COND yields nil, and there are no ELSE's, the value is nil.") | |
287 | (args) | |
288 | Lisp_Object args; | |
289 | { | |
290 | register Lisp_Object cond; | |
291 | struct gcpro gcpro1; | |
292 | ||
293 | GCPRO1 (args); | |
294 | cond = Feval (Fcar (args)); | |
295 | UNGCPRO; | |
296 | ||
265a9e55 | 297 | if (!NILP (cond)) |
db9f0278 JB |
298 | return Feval (Fcar (Fcdr (args))); |
299 | return Fprogn (Fcdr (Fcdr (args))); | |
300 | } | |
301 | ||
302 | DEFUN ("cond", Fcond, Scond, 0, UNEVALLED, 0, | |
303 | "(cond CLAUSES...): try each clause until one succeeds.\n\ | |
304 | Each clause looks like (CONDITION BODY...). CONDITION is evaluated\n\ | |
305 | and, if the value is non-nil, this clause succeeds:\n\ | |
306 | then the expressions in BODY are evaluated and the last one's\n\ | |
307 | value is the value of the cond-form.\n\ | |
308 | If no clause succeeds, cond returns nil.\n\ | |
309 | If a clause has one element, as in (CONDITION),\n\ | |
310 | CONDITION's value if non-nil is returned from the cond-form.") | |
311 | (args) | |
312 | Lisp_Object args; | |
313 | { | |
314 | register Lisp_Object clause, val; | |
315 | struct gcpro gcpro1; | |
316 | ||
317 | val = Qnil; | |
318 | GCPRO1 (args); | |
265a9e55 | 319 | while (!NILP (args)) |
db9f0278 JB |
320 | { |
321 | clause = Fcar (args); | |
322 | val = Feval (Fcar (clause)); | |
265a9e55 | 323 | if (!NILP (val)) |
db9f0278 JB |
324 | { |
325 | if (!EQ (XCONS (clause)->cdr, Qnil)) | |
326 | val = Fprogn (XCONS (clause)->cdr); | |
327 | break; | |
328 | } | |
329 | args = XCONS (args)->cdr; | |
330 | } | |
331 | UNGCPRO; | |
332 | ||
333 | return val; | |
334 | } | |
335 | ||
336 | DEFUN ("progn", Fprogn, Sprogn, 0, UNEVALLED, 0, | |
337 | "(progn BODY...): eval BODY forms sequentially and return value of last one.") | |
338 | (args) | |
339 | Lisp_Object args; | |
340 | { | |
341 | register Lisp_Object val, tem; | |
342 | Lisp_Object args_left; | |
343 | struct gcpro gcpro1; | |
344 | ||
345 | /* In Mocklisp code, symbols at the front of the progn arglist | |
346 | are to be bound to zero. */ | |
347 | if (!EQ (Vmocklisp_arguments, Qt)) | |
348 | { | |
349 | val = make_number (0); | |
90165123 | 350 | while (!NILP (args) && (tem = Fcar (args), SYMBOLP (tem))) |
db9f0278 JB |
351 | { |
352 | QUIT; | |
353 | specbind (tem, val), args = Fcdr (args); | |
354 | } | |
355 | } | |
356 | ||
265a9e55 | 357 | if (NILP(args)) |
db9f0278 JB |
358 | return Qnil; |
359 | ||
360 | args_left = args; | |
361 | GCPRO1 (args_left); | |
362 | ||
363 | do | |
364 | { | |
365 | val = Feval (Fcar (args_left)); | |
366 | args_left = Fcdr (args_left); | |
367 | } | |
265a9e55 | 368 | while (!NILP(args_left)); |
db9f0278 JB |
369 | |
370 | UNGCPRO; | |
371 | return val; | |
372 | } | |
373 | ||
374 | DEFUN ("prog1", Fprog1, Sprog1, 1, UNEVALLED, 0, | |
375 | "(prog1 FIRST BODY...): eval FIRST and BODY sequentially; value from FIRST.\n\ | |
376 | The value of FIRST is saved during the evaluation of the remaining args,\n\ | |
377 | whose values are discarded.") | |
378 | (args) | |
379 | Lisp_Object args; | |
380 | { | |
381 | Lisp_Object val; | |
382 | register Lisp_Object args_left; | |
383 | struct gcpro gcpro1, gcpro2; | |
384 | register int argnum = 0; | |
385 | ||
265a9e55 | 386 | if (NILP(args)) |
db9f0278 JB |
387 | return Qnil; |
388 | ||
389 | args_left = args; | |
390 | val = Qnil; | |
391 | GCPRO2 (args, val); | |
392 | ||
393 | do | |
394 | { | |
395 | if (!(argnum++)) | |
396 | val = Feval (Fcar (args_left)); | |
397 | else | |
398 | Feval (Fcar (args_left)); | |
399 | args_left = Fcdr (args_left); | |
400 | } | |
265a9e55 | 401 | while (!NILP(args_left)); |
db9f0278 JB |
402 | |
403 | UNGCPRO; | |
404 | return val; | |
405 | } | |
406 | ||
407 | DEFUN ("prog2", Fprog2, Sprog2, 2, UNEVALLED, 0, | |
877b578f | 408 | "(prog2 X Y BODY...): eval X, Y and BODY sequentially; value from Y.\n\ |
db9f0278 JB |
409 | The value of Y is saved during the evaluation of the remaining args,\n\ |
410 | whose values are discarded.") | |
411 | (args) | |
412 | Lisp_Object args; | |
413 | { | |
414 | Lisp_Object val; | |
415 | register Lisp_Object args_left; | |
416 | struct gcpro gcpro1, gcpro2; | |
417 | register int argnum = -1; | |
418 | ||
419 | val = Qnil; | |
420 | ||
87d238ba | 421 | if (NILP (args)) |
db9f0278 JB |
422 | return Qnil; |
423 | ||
424 | args_left = args; | |
425 | val = Qnil; | |
426 | GCPRO2 (args, val); | |
427 | ||
428 | do | |
429 | { | |
430 | if (!(argnum++)) | |
431 | val = Feval (Fcar (args_left)); | |
432 | else | |
433 | Feval (Fcar (args_left)); | |
434 | args_left = Fcdr (args_left); | |
435 | } | |
87d238ba | 436 | while (!NILP (args_left)); |
db9f0278 JB |
437 | |
438 | UNGCPRO; | |
439 | return val; | |
440 | } | |
441 | ||
442 | DEFUN ("setq", Fsetq, Ssetq, 0, UNEVALLED, 0, | |
443 | "(setq SYM VAL SYM VAL ...): set each SYM to the value of its VAL.\n\ | |
b0d75191 RS |
444 | The symbols SYM are variables; they are literal (not evaluated).\n\ |
445 | The values VAL are expressions; they are evaluated.\n\ | |
446 | Thus, (setq x (1+ y)) sets `x' to the value of `(1+ y)'.\n\ | |
447 | The second VAL is not computed until after the first SYM is set, and so on;\n\ | |
448 | each VAL can use the new value of variables set earlier in the `setq'.\n\ | |
196e7d3f | 449 | The return value of the `setq' form is the value of the last VAL.") |
db9f0278 JB |
450 | (args) |
451 | Lisp_Object args; | |
452 | { | |
453 | register Lisp_Object args_left; | |
454 | register Lisp_Object val, sym; | |
455 | struct gcpro gcpro1; | |
456 | ||
265a9e55 | 457 | if (NILP(args)) |
db9f0278 JB |
458 | return Qnil; |
459 | ||
460 | args_left = args; | |
461 | GCPRO1 (args); | |
462 | ||
463 | do | |
464 | { | |
465 | val = Feval (Fcar (Fcdr (args_left))); | |
466 | sym = Fcar (args_left); | |
467 | Fset (sym, val); | |
468 | args_left = Fcdr (Fcdr (args_left)); | |
469 | } | |
265a9e55 | 470 | while (!NILP(args_left)); |
db9f0278 JB |
471 | |
472 | UNGCPRO; | |
473 | return val; | |
474 | } | |
475 | ||
476 | DEFUN ("quote", Fquote, Squote, 1, UNEVALLED, 0, | |
477 | "Return the argument, without evaluating it. `(quote x)' yields `x'.") | |
478 | (args) | |
479 | Lisp_Object args; | |
480 | { | |
481 | return Fcar (args); | |
482 | } | |
483 | ||
484 | DEFUN ("function", Ffunction, Sfunction, 1, UNEVALLED, 0, | |
485 | "Like `quote', but preferred for objects which are functions.\n\ | |
486 | In byte compilation, `function' causes its argument to be compiled.\n\ | |
487 | `quote' cannot do that.") | |
488 | (args) | |
489 | Lisp_Object args; | |
490 | { | |
491 | return Fcar (args); | |
492 | } | |
493 | ||
494 | DEFUN ("interactive-p", Finteractive_p, Sinteractive_p, 0, 0, 0, | |
495 | "Return t if function in which this appears was called interactively.\n\ | |
496 | This means that the function was called with call-interactively (which\n\ | |
497 | includes being called as the binding of a key)\n\ | |
498 | and input is currently coming from the keyboard (not in keyboard macro).") | |
499 | () | |
500 | { | |
501 | register struct backtrace *btp; | |
502 | register Lisp_Object fun; | |
503 | ||
504 | if (!INTERACTIVE) | |
505 | return Qnil; | |
506 | ||
db9f0278 | 507 | btp = backtrace_list; |
daa37602 JB |
508 | |
509 | /* If this isn't a byte-compiled function, there may be a frame at | |
510 | the top for Finteractive_p itself. If so, skip it. */ | |
511 | fun = Findirect_function (*btp->function); | |
0598f773 | 512 | if (SUBRP (fun) && XSUBR (fun) == &Sinteractive_p) |
db9f0278 | 513 | btp = btp->next; |
daa37602 JB |
514 | |
515 | /* If we're running an Emacs 18-style byte-compiled function, there | |
516 | may be a frame for Fbytecode. Now, given the strictest | |
517 | definition, this function isn't really being called | |
518 | interactively, but because that's the way Emacs 18 always builds | |
519 | byte-compiled functions, we'll accept it for now. */ | |
520 | if (EQ (*btp->function, Qbytecode)) | |
521 | btp = btp->next; | |
522 | ||
523 | /* If this isn't a byte-compiled function, then we may now be | |
524 | looking at several frames for special forms. Skip past them. */ | |
525 | while (btp && | |
526 | btp->nargs == UNEVALLED) | |
a6e3fa71 JB |
527 | btp = btp->next; |
528 | ||
daa37602 JB |
529 | /* btp now points at the frame of the innermost function that isn't |
530 | a special form, ignoring frames for Finteractive_p and/or | |
531 | Fbytecode at the top. If this frame is for a built-in function | |
532 | (such as load or eval-region) return nil. */ | |
ffd56f97 | 533 | fun = Findirect_function (*btp->function); |
90165123 | 534 | if (SUBRP (fun)) |
db9f0278 JB |
535 | return Qnil; |
536 | /* btp points to the frame of a Lisp function that called interactive-p. | |
537 | Return t if that function was called interactively. */ | |
538 | if (btp && btp->next && EQ (*btp->next->function, Qcall_interactively)) | |
539 | return Qt; | |
540 | return Qnil; | |
541 | } | |
542 | ||
543 | DEFUN ("defun", Fdefun, Sdefun, 2, UNEVALLED, 0, | |
544 | "(defun NAME ARGLIST [DOCSTRING] BODY...): define NAME as a function.\n\ | |
545 | The definition is (lambda ARGLIST [DOCSTRING] BODY...).\n\ | |
546 | See also the function `interactive'.") | |
547 | (args) | |
548 | Lisp_Object args; | |
549 | { | |
550 | register Lisp_Object fn_name; | |
551 | register Lisp_Object defn; | |
552 | ||
553 | fn_name = Fcar (args); | |
554 | defn = Fcons (Qlambda, Fcdr (args)); | |
265a9e55 | 555 | if (!NILP (Vpurify_flag)) |
db9f0278 JB |
556 | defn = Fpurecopy (defn); |
557 | Ffset (fn_name, defn); | |
2a49b6e5 | 558 | LOADHIST_ATTACH (fn_name); |
db9f0278 JB |
559 | return fn_name; |
560 | } | |
561 | ||
562 | DEFUN ("defmacro", Fdefmacro, Sdefmacro, 2, UNEVALLED, 0, | |
563 | "(defmacro NAME ARGLIST [DOCSTRING] BODY...): define NAME as a macro.\n\ | |
564 | The definition is (macro lambda ARGLIST [DOCSTRING] BODY...).\n\ | |
565 | When the macro is called, as in (NAME ARGS...),\n\ | |
566 | the function (lambda ARGLIST BODY...) is applied to\n\ | |
567 | the list ARGS... as it appears in the expression,\n\ | |
568 | and the result should be a form to be evaluated instead of the original.") | |
569 | (args) | |
570 | Lisp_Object args; | |
571 | { | |
572 | register Lisp_Object fn_name; | |
573 | register Lisp_Object defn; | |
574 | ||
575 | fn_name = Fcar (args); | |
576 | defn = Fcons (Qmacro, Fcons (Qlambda, Fcdr (args))); | |
265a9e55 | 577 | if (!NILP (Vpurify_flag)) |
db9f0278 JB |
578 | defn = Fpurecopy (defn); |
579 | Ffset (fn_name, defn); | |
2a49b6e5 | 580 | LOADHIST_ATTACH (fn_name); |
db9f0278 JB |
581 | return fn_name; |
582 | } | |
583 | ||
584 | DEFUN ("defvar", Fdefvar, Sdefvar, 1, UNEVALLED, 0, | |
585 | "(defvar SYMBOL INITVALUE DOCSTRING): define SYMBOL as a variable.\n\ | |
586 | You are not required to define a variable in order to use it,\n\ | |
587 | but the definition can supply documentation and an initial value\n\ | |
588 | in a way that tags can recognize.\n\n\ | |
589 | INITVALUE is evaluated, and used to set SYMBOL, only if SYMBOL's value is void.\n\ | |
06ef7355 RS |
590 | If SYMBOL is buffer-local, its default value is what is set;\n\ |
591 | buffer-local values are not affected.\n\ | |
db9f0278 JB |
592 | INITVALUE and DOCSTRING are optional.\n\ |
593 | If DOCSTRING starts with *, this variable is identified as a user option.\n\ | |
594 | This means that M-x set-variable and M-x edit-options recognize it.\n\ | |
595 | If INITVALUE is missing, SYMBOL's value is not set.") | |
596 | (args) | |
597 | Lisp_Object args; | |
598 | { | |
a42ba017 | 599 | register Lisp_Object sym, tem, tail; |
db9f0278 JB |
600 | |
601 | sym = Fcar (args); | |
a42ba017 RS |
602 | tail = Fcdr (args); |
603 | if (!NILP (Fcdr (Fcdr (tail)))) | |
604 | error ("too many arguments"); | |
605 | ||
606 | if (!NILP (tail)) | |
db9f0278 JB |
607 | { |
608 | tem = Fdefault_boundp (sym); | |
265a9e55 | 609 | if (NILP (tem)) |
db9f0278 JB |
610 | Fset_default (sym, Feval (Fcar (Fcdr (args)))); |
611 | } | |
a42ba017 RS |
612 | tail = Fcdr (Fcdr (args)); |
613 | if (!NILP (Fcar (tail))) | |
db9f0278 | 614 | { |
ca248607 | 615 | tem = Fcar (tail); |
265a9e55 | 616 | if (!NILP (Vpurify_flag)) |
db9f0278 JB |
617 | tem = Fpurecopy (tem); |
618 | Fput (sym, Qvariable_documentation, tem); | |
619 | } | |
2a49b6e5 | 620 | LOADHIST_ATTACH (sym); |
db9f0278 JB |
621 | return sym; |
622 | } | |
623 | ||
624 | DEFUN ("defconst", Fdefconst, Sdefconst, 2, UNEVALLED, 0, | |
625 | "(defconst SYMBOL INITVALUE DOCSTRING): define SYMBOL as a constant variable.\n\ | |
626 | The intent is that programs do not change this value, but users may.\n\ | |
627 | Always sets the value of SYMBOL to the result of evalling INITVALUE.\n\ | |
06ef7355 RS |
628 | If SYMBOL is buffer-local, its default value is what is set;\n\ |
629 | buffer-local values are not affected.\n\ | |
db9f0278 JB |
630 | DOCSTRING is optional.\n\ |
631 | If DOCSTRING starts with *, this variable is identified as a user option.\n\ | |
632 | This means that M-x set-variable and M-x edit-options recognize it.\n\n\ | |
633 | Note: do not use `defconst' for user options in libraries that are not\n\ | |
634 | normally loaded, since it is useful for users to be able to specify\n\ | |
635 | their own values for such variables before loading the library.\n\ | |
636 | Since `defconst' unconditionally assigns the variable,\n\ | |
637 | it would override the user's choice.") | |
638 | (args) | |
639 | Lisp_Object args; | |
640 | { | |
641 | register Lisp_Object sym, tem; | |
642 | ||
643 | sym = Fcar (args); | |
a42ba017 RS |
644 | if (!NILP (Fcdr (Fcdr (Fcdr (args))))) |
645 | error ("too many arguments"); | |
646 | ||
db9f0278 JB |
647 | Fset_default (sym, Feval (Fcar (Fcdr (args)))); |
648 | tem = Fcar (Fcdr (Fcdr (args))); | |
265a9e55 | 649 | if (!NILP (tem)) |
db9f0278 | 650 | { |
265a9e55 | 651 | if (!NILP (Vpurify_flag)) |
db9f0278 JB |
652 | tem = Fpurecopy (tem); |
653 | Fput (sym, Qvariable_documentation, tem); | |
654 | } | |
2a49b6e5 | 655 | LOADHIST_ATTACH (sym); |
db9f0278 JB |
656 | return sym; |
657 | } | |
658 | ||
659 | DEFUN ("user-variable-p", Fuser_variable_p, Suser_variable_p, 1, 1, 0, | |
660 | "Returns t if VARIABLE is intended to be set and modified by users.\n\ | |
661 | \(The alternative is a variable used internally in a Lisp program.)\n\ | |
662 | Determined by whether the first character of the documentation\n\ | |
65411977 | 663 | for the variable is `*'.") |
db9f0278 JB |
664 | (variable) |
665 | Lisp_Object variable; | |
666 | { | |
667 | Lisp_Object documentation; | |
668 | ||
5e78e475 RS |
669 | if (!SYMBOLP (variable)) |
670 | return Qnil; | |
671 | ||
db9f0278 | 672 | documentation = Fget (variable, Qvariable_documentation); |
90165123 | 673 | if (INTEGERP (documentation) && XINT (documentation) < 0) |
db9f0278 | 674 | return Qt; |
65411977 RS |
675 | if (STRINGP (documentation) |
676 | && ((unsigned char) XSTRING (documentation)->data[0] == '*')) | |
677 | return Qt; | |
678 | /* If it is (STRING . INTEGER), a negative integer means a user variable. */ | |
679 | if (CONSP (documentation) | |
680 | && STRINGP (XCONS (documentation)->car) | |
681 | && INTEGERP (XCONS (documentation)->cdr) | |
682 | && XINT (XCONS (documentation)->cdr) < 0) | |
db9f0278 JB |
683 | return Qt; |
684 | return Qnil; | |
685 | } | |
686 | \f | |
687 | DEFUN ("let*", FletX, SletX, 1, UNEVALLED, 0, | |
688 | "(let* VARLIST BODY...): bind variables according to VARLIST then eval BODY.\n\ | |
689 | The value of the last form in BODY is returned.\n\ | |
690 | Each element of VARLIST is a symbol (which is bound to nil)\n\ | |
691 | or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).\n\ | |
692 | Each VALUEFORM can refer to the symbols already bound by this VARLIST.") | |
693 | (args) | |
694 | Lisp_Object args; | |
695 | { | |
696 | Lisp_Object varlist, val, elt; | |
697 | int count = specpdl_ptr - specpdl; | |
698 | struct gcpro gcpro1, gcpro2, gcpro3; | |
699 | ||
700 | GCPRO3 (args, elt, varlist); | |
701 | ||
702 | varlist = Fcar (args); | |
265a9e55 | 703 | while (!NILP (varlist)) |
db9f0278 JB |
704 | { |
705 | QUIT; | |
706 | elt = Fcar (varlist); | |
90165123 | 707 | if (SYMBOLP (elt)) |
db9f0278 | 708 | specbind (elt, Qnil); |
08564963 JB |
709 | else if (! NILP (Fcdr (Fcdr (elt)))) |
710 | Fsignal (Qerror, | |
711 | Fcons (build_string ("`let' bindings can have only one value-form"), | |
712 | elt)); | |
db9f0278 JB |
713 | else |
714 | { | |
715 | val = Feval (Fcar (Fcdr (elt))); | |
716 | specbind (Fcar (elt), val); | |
717 | } | |
718 | varlist = Fcdr (varlist); | |
719 | } | |
720 | UNGCPRO; | |
721 | val = Fprogn (Fcdr (args)); | |
722 | return unbind_to (count, val); | |
723 | } | |
724 | ||
725 | DEFUN ("let", Flet, Slet, 1, UNEVALLED, 0, | |
726 | "(let VARLIST BODY...): bind variables according to VARLIST then eval BODY.\n\ | |
727 | The value of the last form in BODY is returned.\n\ | |
728 | Each element of VARLIST is a symbol (which is bound to nil)\n\ | |
729 | or a list (SYMBOL VALUEFORM) (which binds SYMBOL to the value of VALUEFORM).\n\ | |
730 | All the VALUEFORMs are evalled before any symbols are bound.") | |
731 | (args) | |
732 | Lisp_Object args; | |
733 | { | |
734 | Lisp_Object *temps, tem; | |
735 | register Lisp_Object elt, varlist; | |
736 | int count = specpdl_ptr - specpdl; | |
737 | register int argnum; | |
738 | struct gcpro gcpro1, gcpro2; | |
739 | ||
740 | varlist = Fcar (args); | |
741 | ||
742 | /* Make space to hold the values to give the bound variables */ | |
743 | elt = Flength (varlist); | |
744 | temps = (Lisp_Object *) alloca (XFASTINT (elt) * sizeof (Lisp_Object)); | |
745 | ||
746 | /* Compute the values and store them in `temps' */ | |
747 | ||
748 | GCPRO2 (args, *temps); | |
749 | gcpro2.nvars = 0; | |
750 | ||
265a9e55 | 751 | for (argnum = 0; !NILP (varlist); varlist = Fcdr (varlist)) |
db9f0278 JB |
752 | { |
753 | QUIT; | |
754 | elt = Fcar (varlist); | |
90165123 | 755 | if (SYMBOLP (elt)) |
db9f0278 | 756 | temps [argnum++] = Qnil; |
08564963 JB |
757 | else if (! NILP (Fcdr (Fcdr (elt)))) |
758 | Fsignal (Qerror, | |
759 | Fcons (build_string ("`let' bindings can have only one value-form"), | |
760 | elt)); | |
db9f0278 JB |
761 | else |
762 | temps [argnum++] = Feval (Fcar (Fcdr (elt))); | |
763 | gcpro2.nvars = argnum; | |
764 | } | |
765 | UNGCPRO; | |
766 | ||
767 | varlist = Fcar (args); | |
265a9e55 | 768 | for (argnum = 0; !NILP (varlist); varlist = Fcdr (varlist)) |
db9f0278 JB |
769 | { |
770 | elt = Fcar (varlist); | |
771 | tem = temps[argnum++]; | |
90165123 | 772 | if (SYMBOLP (elt)) |
db9f0278 JB |
773 | specbind (elt, tem); |
774 | else | |
775 | specbind (Fcar (elt), tem); | |
776 | } | |
777 | ||
778 | elt = Fprogn (Fcdr (args)); | |
779 | return unbind_to (count, elt); | |
780 | } | |
781 | ||
782 | DEFUN ("while", Fwhile, Swhile, 1, UNEVALLED, 0, | |
783 | "(while TEST BODY...): if TEST yields non-nil, eval BODY... and repeat.\n\ | |
784 | The order of execution is thus TEST, BODY, TEST, BODY and so on\n\ | |
785 | until TEST returns nil.") | |
786 | (args) | |
787 | Lisp_Object args; | |
788 | { | |
789 | Lisp_Object test, body, tem; | |
790 | struct gcpro gcpro1, gcpro2; | |
791 | ||
792 | GCPRO2 (test, body); | |
793 | ||
794 | test = Fcar (args); | |
795 | body = Fcdr (args); | |
e3c24a74 RS |
796 | while (tem = Feval (test), |
797 | (!EQ (Vmocklisp_arguments, Qt) ? XINT (tem) : !NILP (tem))) | |
db9f0278 JB |
798 | { |
799 | QUIT; | |
800 | Fprogn (body); | |
801 | } | |
802 | ||
803 | UNGCPRO; | |
804 | return Qnil; | |
805 | } | |
806 | ||
807 | DEFUN ("macroexpand", Fmacroexpand, Smacroexpand, 1, 2, 0, | |
808 | "Return result of expanding macros at top level of FORM.\n\ | |
809 | If FORM is not a macro call, it is returned unchanged.\n\ | |
810 | Otherwise, the macro is expanded and the expansion is considered\n\ | |
811 | in place of FORM. When a non-macro-call results, it is returned.\n\n\ | |
812 | The second optional arg ENVIRONMENT species an environment of macro\n\ | |
813 | definitions to shadow the loaded ones for use in file byte-compilation.") | |
79e8bfbf | 814 | (form, environment) |
2e267a2e | 815 | Lisp_Object form; |
79e8bfbf | 816 | Lisp_Object environment; |
db9f0278 | 817 | { |
23d6b5a6 | 818 | /* With cleanups from Hallvard Furuseth. */ |
db9f0278 JB |
819 | register Lisp_Object expander, sym, def, tem; |
820 | ||
821 | while (1) | |
822 | { | |
823 | /* Come back here each time we expand a macro call, | |
824 | in case it expands into another macro call. */ | |
90165123 | 825 | if (!CONSP (form)) |
db9f0278 | 826 | break; |
23d6b5a6 JB |
827 | /* Set SYM, give DEF and TEM right values in case SYM is not a symbol. */ |
828 | def = sym = XCONS (form)->car; | |
829 | tem = Qnil; | |
db9f0278 JB |
830 | /* Trace symbols aliases to other symbols |
831 | until we get a symbol that is not an alias. */ | |
90165123 | 832 | while (SYMBOLP (def)) |
db9f0278 JB |
833 | { |
834 | QUIT; | |
23d6b5a6 | 835 | sym = def; |
79e8bfbf | 836 | tem = Fassq (sym, environment); |
265a9e55 | 837 | if (NILP (tem)) |
db9f0278 JB |
838 | { |
839 | def = XSYMBOL (sym)->function; | |
23d6b5a6 JB |
840 | if (!EQ (def, Qunbound)) |
841 | continue; | |
db9f0278 | 842 | } |
23d6b5a6 | 843 | break; |
db9f0278 | 844 | } |
79e8bfbf | 845 | /* Right now TEM is the result from SYM in ENVIRONMENT, |
db9f0278 | 846 | and if TEM is nil then DEF is SYM's function definition. */ |
265a9e55 | 847 | if (NILP (tem)) |
db9f0278 | 848 | { |
79e8bfbf | 849 | /* SYM is not mentioned in ENVIRONMENT. |
db9f0278 | 850 | Look at its function definition. */ |
90165123 | 851 | if (EQ (def, Qunbound) || !CONSP (def)) |
db9f0278 JB |
852 | /* Not defined or definition not suitable */ |
853 | break; | |
854 | if (EQ (XCONS (def)->car, Qautoload)) | |
855 | { | |
856 | /* Autoloading function: will it be a macro when loaded? */ | |
ee9ee63c | 857 | tem = Fnth (make_number (4), def); |
47ccd8b6 | 858 | if (EQ (tem, Qt) || EQ (tem, Qmacro)) |
ee9ee63c JB |
859 | /* Yes, load it and try again. */ |
860 | { | |
ca20916b RS |
861 | struct gcpro gcpro1; |
862 | GCPRO1 (form); | |
ee9ee63c | 863 | do_autoload (def, sym); |
ca20916b | 864 | UNGCPRO; |
ee9ee63c JB |
865 | continue; |
866 | } | |
867 | else | |
db9f0278 | 868 | break; |
db9f0278 JB |
869 | } |
870 | else if (!EQ (XCONS (def)->car, Qmacro)) | |
871 | break; | |
872 | else expander = XCONS (def)->cdr; | |
873 | } | |
874 | else | |
875 | { | |
876 | expander = XCONS (tem)->cdr; | |
265a9e55 | 877 | if (NILP (expander)) |
db9f0278 JB |
878 | break; |
879 | } | |
db9f0278 JB |
880 | form = apply1 (expander, XCONS (form)->cdr); |
881 | } | |
882 | return form; | |
883 | } | |
884 | \f | |
885 | DEFUN ("catch", Fcatch, Scatch, 1, UNEVALLED, 0, | |
886 | "(catch TAG BODY...): eval BODY allowing nonlocal exits using `throw'.\n\ | |
4e306308 RS |
887 | TAG is evalled to get the tag to use; it must not be nil.\n\ |
888 | \n\ | |
889 | Then the BODY is executed.\n\ | |
db9f0278 JB |
890 | Within BODY, (throw TAG) with same tag exits BODY and exits this `catch'.\n\ |
891 | If no throw happens, `catch' returns the value of the last BODY form.\n\ | |
892 | If a throw happens, it specifies the value to return from `catch'.") | |
893 | (args) | |
894 | Lisp_Object args; | |
895 | { | |
896 | register Lisp_Object tag; | |
897 | struct gcpro gcpro1; | |
898 | ||
899 | GCPRO1 (args); | |
900 | tag = Feval (Fcar (args)); | |
901 | UNGCPRO; | |
902 | return internal_catch (tag, Fprogn, Fcdr (args)); | |
903 | } | |
904 | ||
905 | /* Set up a catch, then call C function FUNC on argument ARG. | |
906 | FUNC should return a Lisp_Object. | |
907 | This is how catches are done from within C code. */ | |
908 | ||
909 | Lisp_Object | |
910 | internal_catch (tag, func, arg) | |
911 | Lisp_Object tag; | |
912 | Lisp_Object (*func) (); | |
913 | Lisp_Object arg; | |
914 | { | |
915 | /* This structure is made part of the chain `catchlist'. */ | |
916 | struct catchtag c; | |
917 | ||
918 | /* Fill in the components of c, and put it on the list. */ | |
919 | c.next = catchlist; | |
920 | c.tag = tag; | |
921 | c.val = Qnil; | |
922 | c.backlist = backtrace_list; | |
923 | c.handlerlist = handlerlist; | |
924 | c.lisp_eval_depth = lisp_eval_depth; | |
925 | c.pdlcount = specpdl_ptr - specpdl; | |
926 | c.poll_suppress_count = poll_suppress_count; | |
927 | c.gcpro = gcprolist; | |
928 | catchlist = &c; | |
929 | ||
930 | /* Call FUNC. */ | |
931 | if (! _setjmp (c.jmp)) | |
932 | c.val = (*func) (arg); | |
933 | ||
934 | /* Throw works by a longjmp that comes right here. */ | |
935 | catchlist = c.next; | |
936 | return c.val; | |
937 | } | |
938 | ||
ba410f40 JB |
939 | /* Unwind the specbind, catch, and handler stacks back to CATCH, and |
940 | jump to that CATCH, returning VALUE as the value of that catch. | |
db9f0278 | 941 | |
ba410f40 JB |
942 | This is the guts Fthrow and Fsignal; they differ only in the way |
943 | they choose the catch tag to throw to. A catch tag for a | |
944 | condition-case form has a TAG of Qnil. | |
db9f0278 | 945 | |
ba410f40 JB |
946 | Before each catch is discarded, unbind all special bindings and |
947 | execute all unwind-protect clauses made above that catch. Unwind | |
948 | the handler stack as we go, so that the proper handlers are in | |
949 | effect for each unwind-protect clause we run. At the end, restore | |
950 | some static info saved in CATCH, and longjmp to the location | |
951 | specified in the | |
952 | ||
953 | This is used for correct unwinding in Fthrow and Fsignal. */ | |
db9f0278 JB |
954 | |
955 | static void | |
ba410f40 | 956 | unwind_to_catch (catch, value) |
db9f0278 | 957 | struct catchtag *catch; |
ba410f40 | 958 | Lisp_Object value; |
db9f0278 JB |
959 | { |
960 | register int last_time; | |
961 | ||
ba410f40 JB |
962 | /* Save the value in the tag. */ |
963 | catch->val = value; | |
964 | ||
82da7701 | 965 | /* Restore the polling-suppression count. */ |
1cdc3155 | 966 | set_poll_suppress_count (catch->poll_suppress_count); |
82da7701 | 967 | |
db9f0278 JB |
968 | do |
969 | { | |
970 | last_time = catchlist == catch; | |
82da7701 JB |
971 | |
972 | /* Unwind the specpdl stack, and then restore the proper set of | |
973 | handlers. */ | |
db9f0278 JB |
974 | unbind_to (catchlist->pdlcount, Qnil); |
975 | handlerlist = catchlist->handlerlist; | |
976 | catchlist = catchlist->next; | |
977 | } | |
978 | while (! last_time); | |
979 | ||
980 | gcprolist = catch->gcpro; | |
981 | backtrace_list = catch->backlist; | |
982 | lisp_eval_depth = catch->lisp_eval_depth; | |
ba410f40 JB |
983 | |
984 | _longjmp (catch->jmp, 1); | |
db9f0278 JB |
985 | } |
986 | ||
987 | DEFUN ("throw", Fthrow, Sthrow, 2, 2, 0, | |
988 | "(throw TAG VALUE): throw to the catch for TAG and return VALUE from it.\n\ | |
989 | Both TAG and VALUE are evalled.") | |
79e8bfbf EN |
990 | (tag, value) |
991 | register Lisp_Object tag, value; | |
db9f0278 JB |
992 | { |
993 | register struct catchtag *c; | |
994 | ||
995 | while (1) | |
996 | { | |
265a9e55 | 997 | if (!NILP (tag)) |
db9f0278 JB |
998 | for (c = catchlist; c; c = c->next) |
999 | { | |
1000 | if (EQ (c->tag, tag)) | |
79e8bfbf | 1001 | unwind_to_catch (c, value); |
db9f0278 | 1002 | } |
79e8bfbf | 1003 | tag = Fsignal (Qno_catch, Fcons (tag, Fcons (value, Qnil))); |
db9f0278 JB |
1004 | } |
1005 | } | |
1006 | ||
1007 | ||
1008 | DEFUN ("unwind-protect", Funwind_protect, Sunwind_protect, 1, UNEVALLED, 0, | |
1009 | "Do BODYFORM, protecting with UNWINDFORMS.\n\ | |
1010 | Usage looks like (unwind-protect BODYFORM UNWINDFORMS...).\n\ | |
1011 | If BODYFORM completes normally, its value is returned\n\ | |
1012 | after executing the UNWINDFORMS.\n\ | |
1013 | If BODYFORM exits nonlocally, the UNWINDFORMS are executed anyway.") | |
1014 | (args) | |
1015 | Lisp_Object args; | |
1016 | { | |
1017 | Lisp_Object val; | |
1018 | int count = specpdl_ptr - specpdl; | |
1019 | ||
1020 | record_unwind_protect (0, Fcdr (args)); | |
1021 | val = Feval (Fcar (args)); | |
1022 | return unbind_to (count, val); | |
1023 | } | |
1024 | \f | |
1025 | /* Chain of condition handlers currently in effect. | |
1026 | The elements of this chain are contained in the stack frames | |
1027 | of Fcondition_case and internal_condition_case. | |
1028 | When an error is signaled (by calling Fsignal, below), | |
1029 | this chain is searched for an element that applies. */ | |
1030 | ||
1031 | struct handler *handlerlist; | |
1032 | ||
1033 | DEFUN ("condition-case", Fcondition_case, Scondition_case, 2, UNEVALLED, 0, | |
1034 | "Regain control when an error is signaled.\n\ | |
1035 | Usage looks like (condition-case VAR BODYFORM HANDLERS...).\n\ | |
1036 | executes BODYFORM and returns its value if no error happens.\n\ | |
1037 | Each element of HANDLERS looks like (CONDITION-NAME BODY...)\n\ | |
1038 | where the BODY is made of Lisp expressions.\n\n\ | |
1039 | A handler is applicable to an error\n\ | |
1040 | if CONDITION-NAME is one of the error's condition names.\n\ | |
1041 | If an error happens, the first applicable handler is run.\n\ | |
1042 | \n\ | |
633357d4 RS |
1043 | The car of a handler may be a list of condition names\n\ |
1044 | instead of a single condition name.\n\ | |
1045 | \n\ | |
db9f0278 JB |
1046 | When a handler handles an error,\n\ |
1047 | control returns to the condition-case and the handler BODY... is executed\n\ | |
1048 | with VAR bound to (SIGNALED-CONDITIONS . SIGNAL-DATA).\n\ | |
1049 | VAR may be nil; then you do not get access to the signal information.\n\ | |
1050 | \n\ | |
1051 | The value of the last BODY form is returned from the condition-case.\n\ | |
1052 | See also the function `signal' for more info.") | |
1053 | (args) | |
1054 | Lisp_Object args; | |
1055 | { | |
1056 | Lisp_Object val; | |
1057 | struct catchtag c; | |
1058 | struct handler h; | |
82da7701 | 1059 | register Lisp_Object var, bodyform, handlers; |
db9f0278 | 1060 | |
82da7701 JB |
1061 | var = Fcar (args); |
1062 | bodyform = Fcar (Fcdr (args)); | |
1063 | handlers = Fcdr (Fcdr (args)); | |
1064 | CHECK_SYMBOL (var, 0); | |
1065 | ||
1066 | for (val = handlers; ! NILP (val); val = Fcdr (val)) | |
1067 | { | |
1068 | Lisp_Object tem; | |
1069 | tem = Fcar (val); | |
5f96776a RS |
1070 | if (! (NILP (tem) |
1071 | || (CONSP (tem) | |
1072 | && (SYMBOLP (XCONS (tem)->car) | |
1073 | || CONSP (XCONS (tem)->car))))) | |
82da7701 JB |
1074 | error ("Invalid condition handler", tem); |
1075 | } | |
db9f0278 JB |
1076 | |
1077 | c.tag = Qnil; | |
1078 | c.val = Qnil; | |
1079 | c.backlist = backtrace_list; | |
1080 | c.handlerlist = handlerlist; | |
1081 | c.lisp_eval_depth = lisp_eval_depth; | |
1082 | c.pdlcount = specpdl_ptr - specpdl; | |
1083 | c.poll_suppress_count = poll_suppress_count; | |
1084 | c.gcpro = gcprolist; | |
1085 | if (_setjmp (c.jmp)) | |
1086 | { | |
265a9e55 | 1087 | if (!NILP (h.var)) |
9d58218c RS |
1088 | specbind (h.var, c.val); |
1089 | val = Fprogn (Fcdr (h.chosen_clause)); | |
82da7701 JB |
1090 | |
1091 | /* Note that this just undoes the binding of h.var; whoever | |
1092 | longjumped to us unwound the stack to c.pdlcount before | |
1093 | throwing. */ | |
db9f0278 JB |
1094 | unbind_to (c.pdlcount, Qnil); |
1095 | return val; | |
1096 | } | |
1097 | c.next = catchlist; | |
1098 | catchlist = &c; | |
db9f0278 | 1099 | |
82da7701 JB |
1100 | h.var = var; |
1101 | h.handler = handlers; | |
db9f0278 | 1102 | h.next = handlerlist; |
db9f0278 JB |
1103 | h.tag = &c; |
1104 | handlerlist = &h; | |
1105 | ||
82da7701 | 1106 | val = Feval (bodyform); |
db9f0278 JB |
1107 | catchlist = c.next; |
1108 | handlerlist = h.next; | |
1109 | return val; | |
1110 | } | |
1111 | ||
f029ca5f RS |
1112 | /* Call the function BFUN with no arguments, catching errors within it |
1113 | according to HANDLERS. If there is an error, call HFUN with | |
1114 | one argument which is the data that describes the error: | |
1115 | (SIGNALNAME . DATA) | |
1116 | ||
1117 | HANDLERS can be a list of conditions to catch. | |
1118 | If HANDLERS is Qt, catch all errors. | |
1119 | If HANDLERS is Qerror, catch all errors | |
1120 | but allow the debugger to run if that is enabled. */ | |
1121 | ||
db9f0278 JB |
1122 | Lisp_Object |
1123 | internal_condition_case (bfun, handlers, hfun) | |
1124 | Lisp_Object (*bfun) (); | |
1125 | Lisp_Object handlers; | |
1126 | Lisp_Object (*hfun) (); | |
1127 | { | |
1128 | Lisp_Object val; | |
1129 | struct catchtag c; | |
1130 | struct handler h; | |
1131 | ||
01591d17 RS |
1132 | /* Since Fsignal resets this to 0, it had better be 0 now |
1133 | or else we have a potential bug. */ | |
1134 | if (interrupt_input_blocked != 0) | |
1135 | abort (); | |
1136 | ||
db9f0278 JB |
1137 | c.tag = Qnil; |
1138 | c.val = Qnil; | |
1139 | c.backlist = backtrace_list; | |
1140 | c.handlerlist = handlerlist; | |
1141 | c.lisp_eval_depth = lisp_eval_depth; | |
1142 | c.pdlcount = specpdl_ptr - specpdl; | |
1143 | c.poll_suppress_count = poll_suppress_count; | |
1144 | c.gcpro = gcprolist; | |
1145 | if (_setjmp (c.jmp)) | |
1146 | { | |
9d58218c | 1147 | return (*hfun) (c.val); |
db9f0278 JB |
1148 | } |
1149 | c.next = catchlist; | |
1150 | catchlist = &c; | |
1151 | h.handler = handlers; | |
1152 | h.var = Qnil; | |
db9f0278 JB |
1153 | h.next = handlerlist; |
1154 | h.tag = &c; | |
1155 | handlerlist = &h; | |
1156 | ||
1157 | val = (*bfun) (); | |
1158 | catchlist = c.next; | |
1159 | handlerlist = h.next; | |
1160 | return val; | |
1161 | } | |
1162 | ||
f029ca5f RS |
1163 | /* Like internal_condition_case but call HFUN with ARG as its argument. */ |
1164 | ||
d227775c RS |
1165 | Lisp_Object |
1166 | internal_condition_case_1 (bfun, arg, handlers, hfun) | |
1167 | Lisp_Object (*bfun) (); | |
1168 | Lisp_Object arg; | |
1169 | Lisp_Object handlers; | |
1170 | Lisp_Object (*hfun) (); | |
1171 | { | |
1172 | Lisp_Object val; | |
1173 | struct catchtag c; | |
1174 | struct handler h; | |
1175 | ||
1176 | c.tag = Qnil; | |
1177 | c.val = Qnil; | |
1178 | c.backlist = backtrace_list; | |
1179 | c.handlerlist = handlerlist; | |
1180 | c.lisp_eval_depth = lisp_eval_depth; | |
1181 | c.pdlcount = specpdl_ptr - specpdl; | |
1182 | c.poll_suppress_count = poll_suppress_count; | |
1183 | c.gcpro = gcprolist; | |
1184 | if (_setjmp (c.jmp)) | |
1185 | { | |
9d58218c | 1186 | return (*hfun) (c.val); |
d227775c RS |
1187 | } |
1188 | c.next = catchlist; | |
1189 | catchlist = &c; | |
1190 | h.handler = handlers; | |
1191 | h.var = Qnil; | |
1192 | h.next = handlerlist; | |
1193 | h.tag = &c; | |
1194 | handlerlist = &h; | |
1195 | ||
1196 | val = (*bfun) (arg); | |
1197 | catchlist = c.next; | |
1198 | handlerlist = h.next; | |
1199 | return val; | |
1200 | } | |
1201 | \f | |
db9f0278 JB |
1202 | static Lisp_Object find_handler_clause (); |
1203 | ||
1204 | DEFUN ("signal", Fsignal, Ssignal, 2, 2, 0, | |
4200e719 | 1205 | "Signal an error. Args are ERROR-SYMBOL and associated DATA.\n\ |
db9f0278 | 1206 | This function does not return.\n\n\ |
4200e719 | 1207 | An error symbol is a symbol with an `error-conditions' property\n\ |
db9f0278 JB |
1208 | that is a list of condition names.\n\ |
1209 | A handler for any of those names will get to handle this signal.\n\ | |
1210 | The symbol `error' should normally be one of them.\n\ | |
1211 | \n\ | |
1212 | DATA should be a list. Its elements are printed as part of the error message.\n\ | |
1213 | If the signal is handled, DATA is made available to the handler.\n\ | |
1214 | See also the function `condition-case'.") | |
4200e719 RS |
1215 | (error_symbol, data) |
1216 | Lisp_Object error_symbol, data; | |
db9f0278 JB |
1217 | { |
1218 | register struct handler *allhandlers = handlerlist; | |
1219 | Lisp_Object conditions; | |
1220 | extern int gc_in_progress; | |
1221 | extern int waiting_for_input; | |
1222 | Lisp_Object debugger_value; | |
c11d3d17 | 1223 | Lisp_Object string; |
1ea9dec4 RS |
1224 | Lisp_Object real_error_symbol; |
1225 | Lisp_Object combined_data; | |
db9f0278 JB |
1226 | |
1227 | quit_error_check (); | |
1228 | immediate_quit = 0; | |
1229 | if (gc_in_progress || waiting_for_input) | |
1230 | abort (); | |
1231 | ||
1232 | TOTALLY_UNBLOCK_INPUT; | |
1233 | ||
1ea9dec4 RS |
1234 | if (NILP (error_symbol)) |
1235 | real_error_symbol = Fcar (data); | |
1236 | else | |
1237 | real_error_symbol = error_symbol; | |
1238 | ||
61ede770 RS |
1239 | /* This hook is used by edebug. */ |
1240 | if (! NILP (Vsignal_hook_function)) | |
f01a9c5b | 1241 | call2 (Vsignal_hook_function, error_symbol, data); |
61ede770 | 1242 | |
1ea9dec4 | 1243 | conditions = Fget (real_error_symbol, Qerror_conditions); |
db9f0278 JB |
1244 | |
1245 | for (; handlerlist; handlerlist = handlerlist->next) | |
1246 | { | |
1247 | register Lisp_Object clause; | |
1248 | clause = find_handler_clause (handlerlist->handler, conditions, | |
4200e719 | 1249 | error_symbol, data, &debugger_value); |
db9f0278 JB |
1250 | |
1251 | #if 0 /* Most callers are not prepared to handle gc if this returns. | |
1252 | So, since this feature is not very useful, take it out. */ | |
1253 | /* If have called debugger and user wants to continue, | |
1254 | just return nil. */ | |
1255 | if (EQ (clause, Qlambda)) | |
1256 | return debugger_value; | |
1257 | #else | |
1258 | if (EQ (clause, Qlambda)) | |
82da7701 | 1259 | { |
690337b7 KH |
1260 | /* We can't return values to code which signaled an error, but we |
1261 | can continue code which has signaled a quit. */ | |
1ea9dec4 | 1262 | if (EQ (real_error_symbol, Qquit)) |
82da7701 JB |
1263 | return Qnil; |
1264 | else | |
d3e6f8be | 1265 | error ("Cannot return from the debugger in an error"); |
82da7701 | 1266 | } |
db9f0278 JB |
1267 | #endif |
1268 | ||
265a9e55 | 1269 | if (!NILP (clause)) |
db9f0278 | 1270 | { |
9d58218c | 1271 | Lisp_Object unwind_data; |
db9f0278 | 1272 | struct handler *h = handlerlist; |
9d58218c | 1273 | |
db9f0278 | 1274 | handlerlist = allhandlers; |
1ea9dec4 RS |
1275 | |
1276 | if (NILP (error_symbol)) | |
1277 | unwind_data = data; | |
9d58218c RS |
1278 | else |
1279 | unwind_data = Fcons (error_symbol, data); | |
1280 | h->chosen_clause = clause; | |
1281 | unwind_to_catch (h->tag, unwind_data); | |
db9f0278 JB |
1282 | } |
1283 | } | |
1284 | ||
1285 | handlerlist = allhandlers; | |
1286 | /* If no handler is present now, try to run the debugger, | |
1287 | and if that fails, throw to top level. */ | |
4200e719 | 1288 | find_handler_clause (Qerror, conditions, error_symbol, data, &debugger_value); |
c11d3d17 RS |
1289 | if (catchlist != 0) |
1290 | Fthrow (Qtop_level, Qt); | |
1291 | ||
1ea9dec4 | 1292 | if (! NILP (error_symbol)) |
c11d3d17 RS |
1293 | data = Fcons (error_symbol, data); |
1294 | ||
1295 | string = Ferror_message_string (data); | |
1296 | fatal (XSTRING (string)->data, 0, 0); | |
db9f0278 JB |
1297 | } |
1298 | ||
128c0f66 RM |
1299 | /* Return nonzero iff LIST is a non-nil atom or |
1300 | a list containing one of CONDITIONS. */ | |
1301 | ||
1302 | static int | |
1303 | wants_debugger (list, conditions) | |
1304 | Lisp_Object list, conditions; | |
1305 | { | |
4de86b16 | 1306 | if (NILP (list)) |
128c0f66 RM |
1307 | return 0; |
1308 | if (! CONSP (list)) | |
1309 | return 1; | |
1310 | ||
ab67260b | 1311 | while (CONSP (conditions)) |
128c0f66 | 1312 | { |
ab67260b RS |
1313 | Lisp_Object this, tail; |
1314 | this = XCONS (conditions)->car; | |
1315 | for (tail = list; CONSP (tail); tail = XCONS (tail)->cdr) | |
1316 | if (EQ (XCONS (tail)->car, this)) | |
128c0f66 | 1317 | return 1; |
128c0f66 RM |
1318 | conditions = XCONS (conditions)->cdr; |
1319 | } | |
ab67260b | 1320 | return 0; |
128c0f66 RM |
1321 | } |
1322 | ||
fc950e09 KH |
1323 | /* Return 1 if an error with condition-symbols CONDITIONS, |
1324 | and described by SIGNAL-DATA, should skip the debugger | |
1325 | according to debugger-ignore-errors. */ | |
1326 | ||
1327 | static int | |
1328 | skip_debugger (conditions, data) | |
1329 | Lisp_Object conditions, data; | |
1330 | { | |
1331 | Lisp_Object tail; | |
1332 | int first_string = 1; | |
1333 | Lisp_Object error_message; | |
1334 | ||
1335 | for (tail = Vdebug_ignored_errors; CONSP (tail); | |
1336 | tail = XCONS (tail)->cdr) | |
1337 | { | |
1338 | if (STRINGP (XCONS (tail)->car)) | |
1339 | { | |
1340 | if (first_string) | |
1341 | { | |
1342 | error_message = Ferror_message_string (data); | |
1343 | first_string = 0; | |
1344 | } | |
1345 | if (fast_string_match (XCONS (tail)->car, error_message) >= 0) | |
1346 | return 1; | |
1347 | } | |
1348 | else | |
1349 | { | |
1350 | Lisp_Object contail; | |
1351 | ||
1352 | for (contail = conditions; CONSP (contail); | |
1353 | contail = XCONS (contail)->cdr) | |
1354 | if (EQ (XCONS (tail)->car, XCONS (contail)->car)) | |
1355 | return 1; | |
1356 | } | |
1357 | } | |
1358 | ||
1359 | return 0; | |
1360 | } | |
1361 | ||
128c0f66 | 1362 | /* Value of Qlambda means we have called debugger and user has continued. |
1ea9dec4 RS |
1363 | There are two ways to pass SIG and DATA: |
1364 | - SIG is the error symbol, and DATA is the rest of the data. | |
1365 | = SIG is nil, and DATA is (SYMBOL . REST-OF-DATA). | |
1366 | ||
128c0f66 | 1367 | Store value returned from debugger into *DEBUGGER_VALUE_PTR. */ |
db9f0278 JB |
1368 | |
1369 | static Lisp_Object | |
1370 | find_handler_clause (handlers, conditions, sig, data, debugger_value_ptr) | |
1371 | Lisp_Object handlers, conditions, sig, data; | |
1372 | Lisp_Object *debugger_value_ptr; | |
1373 | { | |
1374 | register Lisp_Object h; | |
1375 | register Lisp_Object tem; | |
db9f0278 JB |
1376 | |
1377 | if (EQ (handlers, Qt)) /* t is used by handlers for all conditions, set up by C code. */ | |
1378 | return Qt; | |
61ede770 RS |
1379 | /* error is used similarly, but means print an error message |
1380 | and run the debugger if that is enabled. */ | |
1381 | if (EQ (handlers, Qerror) | |
57a6e758 RS |
1382 | || !NILP (Vdebug_on_signal)) /* This says call debugger even if |
1383 | there is a handler. */ | |
db9f0278 | 1384 | { |
61ede770 RS |
1385 | int count = specpdl_ptr - specpdl; |
1386 | int debugger_called = 0; | |
1ea9dec4 RS |
1387 | Lisp_Object sig_symbol, combined_data; |
1388 | ||
1389 | if (NILP (sig)) | |
1390 | { | |
1391 | combined_data = data; | |
1392 | sig_symbol = Fcar (data); | |
1393 | } | |
1394 | else | |
1395 | { | |
1396 | combined_data = Fcons (sig, data); | |
1397 | sig_symbol = sig; | |
1398 | } | |
61ede770 | 1399 | |
128c0f66 | 1400 | if (wants_debugger (Vstack_trace_on_error, conditions)) |
88817f3b RS |
1401 | { |
1402 | #ifdef __STDC__ | |
1403 | internal_with_output_to_temp_buffer ("*Backtrace*", | |
1404 | (Lisp_Object (*) (Lisp_Object)) Fbacktrace, | |
1405 | Qnil); | |
1406 | #else | |
1407 | internal_with_output_to_temp_buffer ("*Backtrace*", | |
1408 | Fbacktrace, Qnil); | |
1409 | #endif | |
1410 | } | |
1ea9dec4 | 1411 | if ((EQ (sig_symbol, Qquit) |
ba410f40 JB |
1412 | ? debug_on_quit |
1413 | : wants_debugger (Vdebug_on_error, conditions)) | |
1ea9dec4 | 1414 | && ! skip_debugger (conditions, combined_data) |
be857679 | 1415 | && when_entered_debugger < num_nonmacro_input_events) |
db9f0278 | 1416 | { |
db9f0278 | 1417 | specbind (Qdebug_on_error, Qnil); |
fc950e09 KH |
1418 | *debugger_value_ptr |
1419 | = call_debugger (Fcons (Qerror, | |
1ea9dec4 | 1420 | Fcons (combined_data, Qnil))); |
61ede770 RS |
1421 | debugger_called = 1; |
1422 | } | |
1423 | /* If there is no handler, return saying whether we ran the debugger. */ | |
1424 | if (EQ (handlers, Qerror)) | |
1425 | { | |
1426 | if (debugger_called) | |
1427 | return unbind_to (count, Qlambda); | |
1428 | return Qt; | |
db9f0278 | 1429 | } |
db9f0278 JB |
1430 | } |
1431 | for (h = handlers; CONSP (h); h = Fcdr (h)) | |
1432 | { | |
5f96776a RS |
1433 | Lisp_Object handler, condit; |
1434 | ||
1435 | handler = Fcar (h); | |
1436 | if (!CONSP (handler)) | |
db9f0278 | 1437 | continue; |
5f96776a RS |
1438 | condit = Fcar (handler); |
1439 | /* Handle a single condition name in handler HANDLER. */ | |
1440 | if (SYMBOLP (condit)) | |
1441 | { | |
1442 | tem = Fmemq (Fcar (handler), conditions); | |
1443 | if (!NILP (tem)) | |
1444 | return handler; | |
1445 | } | |
1446 | /* Handle a list of condition names in handler HANDLER. */ | |
1447 | else if (CONSP (condit)) | |
1448 | { | |
1449 | while (CONSP (condit)) | |
1450 | { | |
1451 | tem = Fmemq (Fcar (condit), conditions); | |
1452 | if (!NILP (tem)) | |
1453 | return handler; | |
1454 | condit = XCONS (condit)->cdr; | |
1455 | } | |
1456 | } | |
db9f0278 JB |
1457 | } |
1458 | return Qnil; | |
1459 | } | |
1460 | ||
1461 | /* dump an error message; called like printf */ | |
1462 | ||
1463 | /* VARARGS 1 */ | |
1464 | void | |
1465 | error (m, a1, a2, a3) | |
1466 | char *m; | |
9125da08 | 1467 | char *a1, *a2, *a3; |
db9f0278 JB |
1468 | { |
1469 | char buf[200]; | |
9125da08 RS |
1470 | int size = 200; |
1471 | int mlen; | |
1472 | char *buffer = buf; | |
1473 | char *args[3]; | |
1474 | int allocated = 0; | |
1475 | Lisp_Object string; | |
1476 | ||
1477 | args[0] = a1; | |
1478 | args[1] = a2; | |
1479 | args[2] = a3; | |
1480 | ||
1481 | mlen = strlen (m); | |
db9f0278 JB |
1482 | |
1483 | while (1) | |
9125da08 | 1484 | { |
955f3ff9 | 1485 | int used = doprnt (buffer, size, m, m + mlen, 3, args); |
9125da08 RS |
1486 | if (used < size) |
1487 | break; | |
1488 | size *= 2; | |
1489 | if (allocated) | |
1490 | buffer = (char *) xrealloc (buffer, size); | |
5ece1728 RS |
1491 | else |
1492 | { | |
1493 | buffer = (char *) xmalloc (size); | |
1494 | allocated = 1; | |
1495 | } | |
9125da08 RS |
1496 | } |
1497 | ||
955f3ff9 | 1498 | string = build_string (buffer); |
9125da08 RS |
1499 | if (allocated) |
1500 | free (buffer); | |
1501 | ||
1502 | Fsignal (Qerror, Fcons (string, Qnil)); | |
db9f0278 JB |
1503 | } |
1504 | \f | |
1505 | DEFUN ("commandp", Fcommandp, Scommandp, 1, 1, 0, | |
1506 | "T if FUNCTION makes provisions for interactive calling.\n\ | |
1507 | This means it contains a description for how to read arguments to give it.\n\ | |
1508 | The value is nil for an invalid function or a symbol with no function\n\ | |
1509 | definition.\n\ | |
1510 | \n\ | |
1511 | Interactively callable functions include strings and vectors (treated\n\ | |
1512 | as keyboard macros), lambda-expressions that contain a top-level call\n\ | |
1513 | to `interactive', autoload definitions made by `autoload' with non-nil\n\ | |
1514 | fourth argument, and some of the built-in functions of Lisp.\n\ | |
1515 | \n\ | |
1516 | Also, a symbol satisfies `commandp' if its function definition does so.") | |
1517 | (function) | |
1518 | Lisp_Object function; | |
1519 | { | |
1520 | register Lisp_Object fun; | |
1521 | register Lisp_Object funcar; | |
1522 | register Lisp_Object tem; | |
1523 | register int i = 0; | |
1524 | ||
1525 | fun = function; | |
1526 | ||
ffd56f97 JB |
1527 | fun = indirect_function (fun); |
1528 | if (EQ (fun, Qunbound)) | |
1529 | return Qnil; | |
db9f0278 JB |
1530 | |
1531 | /* Emacs primitives are interactive if their DEFUN specifies an | |
1532 | interactive spec. */ | |
90165123 | 1533 | if (SUBRP (fun)) |
db9f0278 JB |
1534 | { |
1535 | if (XSUBR (fun)->prompt) | |
1536 | return Qt; | |
1537 | else | |
1538 | return Qnil; | |
1539 | } | |
1540 | ||
1541 | /* Bytecode objects are interactive if they are long enough to | |
1542 | have an element whose index is COMPILED_INTERACTIVE, which is | |
1543 | where the interactive spec is stored. */ | |
90165123 | 1544 | else if (COMPILEDP (fun)) |
f9b4aacf | 1545 | return ((XVECTOR (fun)->size & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE |
db9f0278 JB |
1546 | ? Qt : Qnil); |
1547 | ||
1548 | /* Strings and vectors are keyboard macros. */ | |
90165123 | 1549 | if (STRINGP (fun) || VECTORP (fun)) |
db9f0278 JB |
1550 | return Qt; |
1551 | ||
1552 | /* Lists may represent commands. */ | |
1553 | if (!CONSP (fun)) | |
1554 | return Qnil; | |
1555 | funcar = Fcar (fun); | |
90165123 | 1556 | if (!SYMBOLP (funcar)) |
db9f0278 JB |
1557 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); |
1558 | if (EQ (funcar, Qlambda)) | |
1559 | return Fassq (Qinteractive, Fcdr (Fcdr (fun))); | |
1560 | if (EQ (funcar, Qmocklisp)) | |
1561 | return Qt; /* All mocklisp functions can be called interactively */ | |
1562 | if (EQ (funcar, Qautoload)) | |
1563 | return Fcar (Fcdr (Fcdr (Fcdr (fun)))); | |
1564 | else | |
1565 | return Qnil; | |
1566 | } | |
1567 | ||
1568 | /* ARGSUSED */ | |
1569 | DEFUN ("autoload", Fautoload, Sautoload, 2, 5, 0, | |
1570 | "Define FUNCTION to autoload from FILE.\n\ | |
1571 | FUNCTION is a symbol; FILE is a file name string to pass to `load'.\n\ | |
1572 | Third arg DOCSTRING is documentation for the function.\n\ | |
1573 | Fourth arg INTERACTIVE if non-nil says function can be called interactively.\n\ | |
ee9ee63c JB |
1574 | Fifth arg TYPE indicates the type of the object:\n\ |
1575 | nil or omitted says FUNCTION is a function,\n\ | |
1576 | `keymap' says FUNCTION is really a keymap, and\n\ | |
1577 | `macro' or t says FUNCTION is really a macro.\n\ | |
db9f0278 JB |
1578 | Third through fifth args give info about the real definition.\n\ |
1579 | They default to nil.\n\ | |
1580 | If FUNCTION is already defined other than as an autoload,\n\ | |
1581 | this does nothing and returns nil.") | |
ee9ee63c JB |
1582 | (function, file, docstring, interactive, type) |
1583 | Lisp_Object function, file, docstring, interactive, type; | |
db9f0278 JB |
1584 | { |
1585 | #ifdef NO_ARG_ARRAY | |
1586 | Lisp_Object args[4]; | |
1587 | #endif | |
1588 | ||
1589 | CHECK_SYMBOL (function, 0); | |
1590 | CHECK_STRING (file, 1); | |
1591 | ||
1592 | /* If function is defined and not as an autoload, don't override */ | |
1593 | if (!EQ (XSYMBOL (function)->function, Qunbound) | |
90165123 | 1594 | && !(CONSP (XSYMBOL (function)->function) |
db9f0278 JB |
1595 | && EQ (XCONS (XSYMBOL (function)->function)->car, Qautoload))) |
1596 | return Qnil; | |
1597 | ||
1598 | #ifdef NO_ARG_ARRAY | |
1599 | args[0] = file; | |
1600 | args[1] = docstring; | |
1601 | args[2] = interactive; | |
ee9ee63c | 1602 | args[3] = type; |
db9f0278 JB |
1603 | |
1604 | return Ffset (function, Fcons (Qautoload, Flist (4, &args[0]))); | |
1605 | #else /* NO_ARG_ARRAY */ | |
1606 | return Ffset (function, Fcons (Qautoload, Flist (4, &file))); | |
1607 | #endif /* not NO_ARG_ARRAY */ | |
1608 | } | |
1609 | ||
1610 | Lisp_Object | |
1611 | un_autoload (oldqueue) | |
1612 | Lisp_Object oldqueue; | |
1613 | { | |
1614 | register Lisp_Object queue, first, second; | |
1615 | ||
1616 | /* Queue to unwind is current value of Vautoload_queue. | |
1617 | oldqueue is the shadowed value to leave in Vautoload_queue. */ | |
1618 | queue = Vautoload_queue; | |
1619 | Vautoload_queue = oldqueue; | |
1620 | while (CONSP (queue)) | |
1621 | { | |
1622 | first = Fcar (queue); | |
1623 | second = Fcdr (first); | |
1624 | first = Fcar (first); | |
1625 | if (EQ (second, Qnil)) | |
1626 | Vfeatures = first; | |
1627 | else | |
1628 | Ffset (first, second); | |
1629 | queue = Fcdr (queue); | |
1630 | } | |
1631 | return Qnil; | |
1632 | } | |
1633 | ||
ca20916b RS |
1634 | /* Load an autoloaded function. |
1635 | FUNNAME is the symbol which is the function's name. | |
1636 | FUNDEF is the autoload definition (a list). */ | |
1637 | ||
045ba794 | 1638 | void |
db9f0278 JB |
1639 | do_autoload (fundef, funname) |
1640 | Lisp_Object fundef, funname; | |
1641 | { | |
1642 | int count = specpdl_ptr - specpdl; | |
2a49b6e5 | 1643 | Lisp_Object fun, val, queue, first, second; |
ca20916b | 1644 | struct gcpro gcpro1, gcpro2, gcpro3; |
db9f0278 JB |
1645 | |
1646 | fun = funname; | |
1647 | CHECK_SYMBOL (funname, 0); | |
ca20916b | 1648 | GCPRO3 (fun, funname, fundef); |
db9f0278 JB |
1649 | |
1650 | /* Value saved here is to be restored into Vautoload_queue */ | |
1651 | record_unwind_protect (un_autoload, Vautoload_queue); | |
1652 | Vautoload_queue = Qt; | |
4aac2302 | 1653 | Fload (Fcar (Fcdr (fundef)), Qnil, noninteractive ? Qt : Qnil, Qnil, Qt); |
2a49b6e5 RS |
1654 | |
1655 | /* Save the old autoloads, in case we ever do an unload. */ | |
1656 | queue = Vautoload_queue; | |
1657 | while (CONSP (queue)) | |
1658 | { | |
1659 | first = Fcar (queue); | |
1660 | second = Fcdr (first); | |
1661 | first = Fcar (first); | |
5739ce6b ER |
1662 | |
1663 | /* Note: This test is subtle. The cdr of an autoload-queue entry | |
1664 | may be an atom if the autoload entry was generated by a defalias | |
1665 | or fset. */ | |
1666 | if (CONSP (second)) | |
03e267c2 | 1667 | Fput (first, Qautoload, (Fcdr (second))); |
5739ce6b | 1668 | |
2a49b6e5 RS |
1669 | queue = Fcdr (queue); |
1670 | } | |
1671 | ||
db9f0278 JB |
1672 | /* Once loading finishes, don't undo it. */ |
1673 | Vautoload_queue = Qt; | |
1674 | unbind_to (count, Qnil); | |
1675 | ||
ffd56f97 JB |
1676 | fun = Findirect_function (fun); |
1677 | ||
76c2b0cc | 1678 | if (!NILP (Fequal (fun, fundef))) |
db9f0278 JB |
1679 | error ("Autoloading failed to define function %s", |
1680 | XSYMBOL (funname)->name->data); | |
ca20916b | 1681 | UNGCPRO; |
db9f0278 JB |
1682 | } |
1683 | \f | |
1684 | DEFUN ("eval", Feval, Seval, 1, 1, 0, | |
1685 | "Evaluate FORM and return its value.") | |
1686 | (form) | |
1687 | Lisp_Object form; | |
1688 | { | |
1689 | Lisp_Object fun, val, original_fun, original_args; | |
1690 | Lisp_Object funcar; | |
1691 | struct backtrace backtrace; | |
1692 | struct gcpro gcpro1, gcpro2, gcpro3; | |
1693 | ||
90165123 | 1694 | if (SYMBOLP (form)) |
db9f0278 JB |
1695 | { |
1696 | if (EQ (Vmocklisp_arguments, Qt)) | |
1697 | return Fsymbol_value (form); | |
1698 | val = Fsymbol_value (form); | |
265a9e55 | 1699 | if (NILP (val)) |
a631e24c | 1700 | XSETFASTINT (val, 0); |
db9f0278 | 1701 | else if (EQ (val, Qt)) |
a631e24c | 1702 | XSETFASTINT (val, 1); |
db9f0278 JB |
1703 | return val; |
1704 | } | |
1705 | if (!CONSP (form)) | |
1706 | return form; | |
1707 | ||
1708 | QUIT; | |
1709 | if (consing_since_gc > gc_cons_threshold) | |
1710 | { | |
1711 | GCPRO1 (form); | |
1712 | Fgarbage_collect (); | |
1713 | UNGCPRO; | |
1714 | } | |
1715 | ||
1716 | if (++lisp_eval_depth > max_lisp_eval_depth) | |
1717 | { | |
1718 | if (max_lisp_eval_depth < 100) | |
1719 | max_lisp_eval_depth = 100; | |
1720 | if (lisp_eval_depth > max_lisp_eval_depth) | |
1721 | error ("Lisp nesting exceeds max-lisp-eval-depth"); | |
1722 | } | |
1723 | ||
1724 | original_fun = Fcar (form); | |
1725 | original_args = Fcdr (form); | |
1726 | ||
1727 | backtrace.next = backtrace_list; | |
1728 | backtrace_list = &backtrace; | |
1729 | backtrace.function = &original_fun; /* This also protects them from gc */ | |
1730 | backtrace.args = &original_args; | |
1731 | backtrace.nargs = UNEVALLED; | |
1732 | backtrace.evalargs = 1; | |
1733 | backtrace.debug_on_exit = 0; | |
1734 | ||
1735 | if (debug_on_next_call) | |
1736 | do_debug_on_call (Qt); | |
1737 | ||
1738 | /* At this point, only original_fun and original_args | |
1739 | have values that will be used below */ | |
1740 | retry: | |
ffd56f97 | 1741 | fun = Findirect_function (original_fun); |
db9f0278 | 1742 | |
90165123 | 1743 | if (SUBRP (fun)) |
db9f0278 JB |
1744 | { |
1745 | Lisp_Object numargs; | |
166c822d | 1746 | Lisp_Object argvals[8]; |
db9f0278 JB |
1747 | Lisp_Object args_left; |
1748 | register int i, maxargs; | |
1749 | ||
1750 | args_left = original_args; | |
1751 | numargs = Flength (args_left); | |
1752 | ||
1753 | if (XINT (numargs) < XSUBR (fun)->min_args || | |
1754 | (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < XINT (numargs))) | |
1755 | return Fsignal (Qwrong_number_of_arguments, Fcons (fun, Fcons (numargs, Qnil))); | |
1756 | ||
1757 | if (XSUBR (fun)->max_args == UNEVALLED) | |
1758 | { | |
1759 | backtrace.evalargs = 0; | |
1760 | val = (*XSUBR (fun)->function) (args_left); | |
1761 | goto done; | |
1762 | } | |
1763 | ||
1764 | if (XSUBR (fun)->max_args == MANY) | |
1765 | { | |
1766 | /* Pass a vector of evaluated arguments */ | |
1767 | Lisp_Object *vals; | |
1768 | register int argnum = 0; | |
1769 | ||
1770 | vals = (Lisp_Object *) alloca (XINT (numargs) * sizeof (Lisp_Object)); | |
1771 | ||
1772 | GCPRO3 (args_left, fun, fun); | |
1773 | gcpro3.var = vals; | |
1774 | gcpro3.nvars = 0; | |
1775 | ||
265a9e55 | 1776 | while (!NILP (args_left)) |
db9f0278 JB |
1777 | { |
1778 | vals[argnum++] = Feval (Fcar (args_left)); | |
1779 | args_left = Fcdr (args_left); | |
1780 | gcpro3.nvars = argnum; | |
1781 | } | |
db9f0278 JB |
1782 | |
1783 | backtrace.args = vals; | |
1784 | backtrace.nargs = XINT (numargs); | |
1785 | ||
1786 | val = (*XSUBR (fun)->function) (XINT (numargs), vals); | |
a6e3fa71 | 1787 | UNGCPRO; |
db9f0278 JB |
1788 | goto done; |
1789 | } | |
1790 | ||
1791 | GCPRO3 (args_left, fun, fun); | |
1792 | gcpro3.var = argvals; | |
1793 | gcpro3.nvars = 0; | |
1794 | ||
1795 | maxargs = XSUBR (fun)->max_args; | |
1796 | for (i = 0; i < maxargs; args_left = Fcdr (args_left)) | |
1797 | { | |
1798 | argvals[i] = Feval (Fcar (args_left)); | |
1799 | gcpro3.nvars = ++i; | |
1800 | } | |
1801 | ||
1802 | UNGCPRO; | |
1803 | ||
1804 | backtrace.args = argvals; | |
1805 | backtrace.nargs = XINT (numargs); | |
1806 | ||
1807 | switch (i) | |
1808 | { | |
1809 | case 0: | |
1810 | val = (*XSUBR (fun)->function) (); | |
1811 | goto done; | |
1812 | case 1: | |
1813 | val = (*XSUBR (fun)->function) (argvals[0]); | |
1814 | goto done; | |
1815 | case 2: | |
1816 | val = (*XSUBR (fun)->function) (argvals[0], argvals[1]); | |
1817 | goto done; | |
1818 | case 3: | |
1819 | val = (*XSUBR (fun)->function) (argvals[0], argvals[1], | |
1820 | argvals[2]); | |
1821 | goto done; | |
1822 | case 4: | |
1823 | val = (*XSUBR (fun)->function) (argvals[0], argvals[1], | |
1824 | argvals[2], argvals[3]); | |
1825 | goto done; | |
1826 | case 5: | |
1827 | val = (*XSUBR (fun)->function) (argvals[0], argvals[1], argvals[2], | |
1828 | argvals[3], argvals[4]); | |
1829 | goto done; | |
1830 | case 6: | |
1831 | val = (*XSUBR (fun)->function) (argvals[0], argvals[1], argvals[2], | |
1832 | argvals[3], argvals[4], argvals[5]); | |
1833 | goto done; | |
15c65264 RS |
1834 | case 7: |
1835 | val = (*XSUBR (fun)->function) (argvals[0], argvals[1], argvals[2], | |
1836 | argvals[3], argvals[4], argvals[5], | |
1837 | argvals[6]); | |
1838 | goto done; | |
db9f0278 | 1839 | |
166c822d KH |
1840 | case 8: |
1841 | val = (*XSUBR (fun)->function) (argvals[0], argvals[1], argvals[2], | |
1842 | argvals[3], argvals[4], argvals[5], | |
1843 | argvals[6], argvals[7]); | |
1844 | goto done; | |
1845 | ||
db9f0278 | 1846 | default: |
08564963 JB |
1847 | /* Someone has created a subr that takes more arguments than |
1848 | is supported by this code. We need to either rewrite the | |
1849 | subr to use a different argument protocol, or add more | |
1850 | cases to this switch. */ | |
1851 | abort (); | |
db9f0278 JB |
1852 | } |
1853 | } | |
90165123 | 1854 | if (COMPILEDP (fun)) |
db9f0278 JB |
1855 | val = apply_lambda (fun, original_args, 1); |
1856 | else | |
1857 | { | |
1858 | if (!CONSP (fun)) | |
1859 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); | |
1860 | funcar = Fcar (fun); | |
90165123 | 1861 | if (!SYMBOLP (funcar)) |
db9f0278 JB |
1862 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); |
1863 | if (EQ (funcar, Qautoload)) | |
1864 | { | |
1865 | do_autoload (fun, original_fun); | |
1866 | goto retry; | |
1867 | } | |
1868 | if (EQ (funcar, Qmacro)) | |
1869 | val = Feval (apply1 (Fcdr (fun), original_args)); | |
1870 | else if (EQ (funcar, Qlambda)) | |
1871 | val = apply_lambda (fun, original_args, 1); | |
1872 | else if (EQ (funcar, Qmocklisp)) | |
1873 | val = ml_apply (fun, original_args); | |
1874 | else | |
1875 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); | |
1876 | } | |
1877 | done: | |
1878 | if (!EQ (Vmocklisp_arguments, Qt)) | |
1879 | { | |
265a9e55 | 1880 | if (NILP (val)) |
a631e24c | 1881 | XSETFASTINT (val, 0); |
db9f0278 | 1882 | else if (EQ (val, Qt)) |
a631e24c | 1883 | XSETFASTINT (val, 1); |
db9f0278 JB |
1884 | } |
1885 | lisp_eval_depth--; | |
1886 | if (backtrace.debug_on_exit) | |
1887 | val = call_debugger (Fcons (Qexit, Fcons (val, Qnil))); | |
1888 | backtrace_list = backtrace.next; | |
1889 | return val; | |
1890 | } | |
1891 | \f | |
1892 | DEFUN ("apply", Fapply, Sapply, 2, MANY, 0, | |
1893 | "Call FUNCTION with our remaining args, using our last arg as list of args.\n\ | |
fd7fe9a1 | 1894 | Then return the value FUNCTION returns.\n\ |
db9f0278 JB |
1895 | Thus, (apply '+ 1 2 '(3 4)) returns 10.") |
1896 | (nargs, args) | |
1897 | int nargs; | |
1898 | Lisp_Object *args; | |
1899 | { | |
1900 | register int i, numargs; | |
1901 | register Lisp_Object spread_arg; | |
1902 | register Lisp_Object *funcall_args; | |
db9f0278 | 1903 | Lisp_Object fun; |
a6e3fa71 | 1904 | struct gcpro gcpro1; |
db9f0278 JB |
1905 | |
1906 | fun = args [0]; | |
1907 | funcall_args = 0; | |
1908 | spread_arg = args [nargs - 1]; | |
1909 | CHECK_LIST (spread_arg, nargs); | |
1910 | ||
1911 | numargs = XINT (Flength (spread_arg)); | |
1912 | ||
1913 | if (numargs == 0) | |
1914 | return Ffuncall (nargs - 1, args); | |
1915 | else if (numargs == 1) | |
1916 | { | |
1917 | args [nargs - 1] = XCONS (spread_arg)->car; | |
1918 | return Ffuncall (nargs, args); | |
1919 | } | |
1920 | ||
a6e3fa71 | 1921 | numargs += nargs - 2; |
db9f0278 | 1922 | |
ffd56f97 JB |
1923 | fun = indirect_function (fun); |
1924 | if (EQ (fun, Qunbound)) | |
db9f0278 | 1925 | { |
ffd56f97 JB |
1926 | /* Let funcall get the error */ |
1927 | fun = args[0]; | |
1928 | goto funcall; | |
db9f0278 JB |
1929 | } |
1930 | ||
90165123 | 1931 | if (SUBRP (fun)) |
db9f0278 JB |
1932 | { |
1933 | if (numargs < XSUBR (fun)->min_args | |
1934 | || (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < numargs)) | |
1935 | goto funcall; /* Let funcall get the error */ | |
1936 | else if (XSUBR (fun)->max_args > numargs) | |
1937 | { | |
1938 | /* Avoid making funcall cons up a yet another new vector of arguments | |
1939 | by explicitly supplying nil's for optional values */ | |
1940 | funcall_args = (Lisp_Object *) alloca ((1 + XSUBR (fun)->max_args) | |
1941 | * sizeof (Lisp_Object)); | |
1942 | for (i = numargs; i < XSUBR (fun)->max_args;) | |
1943 | funcall_args[++i] = Qnil; | |
a6e3fa71 JB |
1944 | GCPRO1 (*funcall_args); |
1945 | gcpro1.nvars = 1 + XSUBR (fun)->max_args; | |
db9f0278 JB |
1946 | } |
1947 | } | |
1948 | funcall: | |
1949 | /* We add 1 to numargs because funcall_args includes the | |
1950 | function itself as well as its arguments. */ | |
1951 | if (!funcall_args) | |
a6e3fa71 JB |
1952 | { |
1953 | funcall_args = (Lisp_Object *) alloca ((1 + numargs) | |
1954 | * sizeof (Lisp_Object)); | |
1955 | GCPRO1 (*funcall_args); | |
1956 | gcpro1.nvars = 1 + numargs; | |
1957 | } | |
1958 | ||
db9f0278 JB |
1959 | bcopy (args, funcall_args, nargs * sizeof (Lisp_Object)); |
1960 | /* Spread the last arg we got. Its first element goes in | |
1961 | the slot that it used to occupy, hence this value of I. */ | |
1962 | i = nargs - 1; | |
265a9e55 | 1963 | while (!NILP (spread_arg)) |
db9f0278 JB |
1964 | { |
1965 | funcall_args [i++] = XCONS (spread_arg)->car; | |
1966 | spread_arg = XCONS (spread_arg)->cdr; | |
1967 | } | |
a6e3fa71 JB |
1968 | |
1969 | RETURN_UNGCPRO (Ffuncall (gcpro1.nvars, funcall_args)); | |
db9f0278 JB |
1970 | } |
1971 | \f | |
ff936e53 SM |
1972 | /* Run hook variables in various ways. */ |
1973 | ||
1974 | enum run_hooks_condition {to_completion, until_success, until_failure}; | |
1975 | ||
1976 | DEFUN ("run-hooks", Frun_hooks, Srun_hooks, 1, MANY, 0, | |
1977 | "Run each hook in HOOKS. Major mode functions use this.\n\ | |
1978 | Each argument should be a symbol, a hook variable.\n\ | |
1979 | These symbols are processed in the order specified.\n\ | |
1980 | If a hook symbol has a non-nil value, that value may be a function\n\ | |
1981 | or a list of functions to be called to run the hook.\n\ | |
1982 | If the value is a function, it is called with no arguments.\n\ | |
1983 | If it is a list, the elements are called, in order, with no arguments.\n\ | |
1984 | \n\ | |
1985 | To make a hook variable buffer-local, use `make-local-hook',\n\ | |
1986 | not `make-local-variable'.") | |
1987 | (nargs, args) | |
1988 | int nargs; | |
1989 | Lisp_Object *args; | |
1990 | { | |
1991 | Lisp_Object hook[1]; | |
1992 | register int i; | |
1993 | ||
1994 | for (i = 0; i < nargs; i++) | |
1995 | { | |
1996 | hook[0] = args[i]; | |
1997 | run_hook_with_args (1, hook, to_completion); | |
1998 | } | |
1999 | ||
2000 | return Qnil; | |
2001 | } | |
2002 | ||
a0d76c27 EN |
2003 | DEFUN ("run-hook-with-args", Frun_hook_with_args, |
2004 | Srun_hook_with_args, 1, MANY, 0, | |
b0b667cb KH |
2005 | "Run HOOK with the specified arguments ARGS.\n\ |
2006 | HOOK should be a symbol, a hook variable. If HOOK has a non-nil\n\ | |
2007 | value, that value may be a function or a list of functions to be\n\ | |
2008 | called to run the hook. If the value is a function, it is called with\n\ | |
2009 | the given arguments and its return value is returned. If it is a list\n\ | |
2010 | of functions, those functions are called, in order,\n\ | |
2011 | with the given arguments ARGS.\n\ | |
2012 | It is best not to depend on the value return by `run-hook-with-args',\n\ | |
2013 | as that may change.\n\ | |
2014 | \n\ | |
ff936e53 SM |
2015 | To make a hook variable buffer-local, use `make-local-hook',\n\ |
2016 | not `make-local-variable'.") | |
2017 | (nargs, args) | |
2018 | int nargs; | |
2019 | Lisp_Object *args; | |
2020 | { | |
2021 | return run_hook_with_args (nargs, args, to_completion); | |
2022 | } | |
2023 | ||
a0d76c27 EN |
2024 | DEFUN ("run-hook-with-args-until-success", Frun_hook_with_args_until_success, |
2025 | Srun_hook_with_args_until_success, 1, MANY, 0, | |
ff936e53 SM |
2026 | "Run HOOK with the specified arguments ARGS.\n\ |
2027 | HOOK should be a symbol, a hook variable. Its value should\n\ | |
2028 | be a list of functions. We call those functions, one by one,\n\ | |
2029 | passing arguments ARGS to each of them, until one of them\n\ | |
2030 | returns a non-nil value. Then we return that value.\n\ | |
2031 | If all the functions return nil, we return nil.\n\ | |
2032 | \n\ | |
2033 | To make a hook variable buffer-local, use `make-local-hook',\n\ | |
2034 | not `make-local-variable'.") | |
b0b667cb KH |
2035 | (nargs, args) |
2036 | int nargs; | |
2037 | Lisp_Object *args; | |
2038 | { | |
ff936e53 SM |
2039 | return run_hook_with_args (nargs, args, until_success); |
2040 | } | |
2041 | ||
a0d76c27 EN |
2042 | DEFUN ("run-hook-with-args-until-failure", Frun_hook_with_args_until_failure, |
2043 | Srun_hook_with_args_until_failure, 1, MANY, 0, | |
ff936e53 SM |
2044 | "Run HOOK with the specified arguments ARGS.\n\ |
2045 | HOOK should be a symbol, a hook variable. Its value should\n\ | |
2046 | be a list of functions. We call those functions, one by one,\n\ | |
2047 | passing arguments ARGS to each of them, until one of them\n\ | |
2048 | returns nil. Then we return nil.\n\ | |
2049 | If all the functions return non-nil, we return non-nil.\n\ | |
2050 | \n\ | |
2051 | To make a hook variable buffer-local, use `make-local-hook',\n\ | |
2052 | not `make-local-variable'.") | |
2053 | (nargs, args) | |
2054 | int nargs; | |
2055 | Lisp_Object *args; | |
2056 | { | |
2057 | return run_hook_with_args (nargs, args, until_failure); | |
2058 | } | |
2059 | ||
c933ea05 RS |
2060 | /* ARGS[0] should be a hook symbol. |
2061 | Call each of the functions in the hook value, passing each of them | |
2062 | as arguments all the rest of ARGS (all NARGS - 1 elements). | |
2063 | COND specifies a condition to test after each call | |
2064 | to decide whether to stop. | |
2065 | The caller (or its caller, etc) must gcpro all of ARGS, | |
2066 | except that it isn't necessary to gcpro ARGS[0]. */ | |
2067 | ||
ff936e53 SM |
2068 | Lisp_Object |
2069 | run_hook_with_args (nargs, args, cond) | |
2070 | int nargs; | |
2071 | Lisp_Object *args; | |
2072 | enum run_hooks_condition cond; | |
2073 | { | |
2074 | Lisp_Object sym, val, ret; | |
c933ea05 | 2075 | struct gcpro gcpro1, gcpro2; |
b0b667cb | 2076 | |
f029ca5f RS |
2077 | /* If we are dying or still initializing, |
2078 | don't do anything--it would probably crash if we tried. */ | |
2079 | if (NILP (Vrun_hooks)) | |
2080 | return; | |
2081 | ||
b0b667cb | 2082 | sym = args[0]; |
aa681b51 | 2083 | val = find_symbol_value (sym); |
ff936e53 SM |
2084 | ret = (cond == until_failure ? Qt : Qnil); |
2085 | ||
b0b667cb | 2086 | if (EQ (val, Qunbound) || NILP (val)) |
ff936e53 | 2087 | return ret; |
b0b667cb KH |
2088 | else if (!CONSP (val) || EQ (XCONS (val)->car, Qlambda)) |
2089 | { | |
2090 | args[0] = val; | |
2091 | return Ffuncall (nargs, args); | |
2092 | } | |
2093 | else | |
2094 | { | |
cb9d21f8 RS |
2095 | GCPRO2 (sym, val); |
2096 | ||
ff936e53 SM |
2097 | for (; |
2098 | CONSP (val) && ((cond == to_completion) | |
2099 | || (cond == until_success ? NILP (ret) | |
2100 | : !NILP (ret))); | |
2101 | val = XCONS (val)->cdr) | |
b0b667cb KH |
2102 | { |
2103 | if (EQ (XCONS (val)->car, Qt)) | |
2104 | { | |
2105 | /* t indicates this hook has a local binding; | |
2106 | it means to run the global binding too. */ | |
2107 | Lisp_Object globals; | |
2108 | ||
ff936e53 SM |
2109 | for (globals = Fdefault_value (sym); |
2110 | CONSP (globals) && ((cond == to_completion) | |
2111 | || (cond == until_success ? NILP (ret) | |
2112 | : !NILP (ret))); | |
b0b667cb KH |
2113 | globals = XCONS (globals)->cdr) |
2114 | { | |
2115 | args[0] = XCONS (globals)->car; | |
77d92e05 RS |
2116 | /* In a global value, t should not occur. If it does, we |
2117 | must ignore it to avoid an endless loop. */ | |
2118 | if (!EQ (args[0], Qt)) | |
2119 | ret = Ffuncall (nargs, args); | |
b0b667cb KH |
2120 | } |
2121 | } | |
2122 | else | |
2123 | { | |
2124 | args[0] = XCONS (val)->car; | |
ff936e53 | 2125 | ret = Ffuncall (nargs, args); |
b0b667cb KH |
2126 | } |
2127 | } | |
cb9d21f8 RS |
2128 | |
2129 | UNGCPRO; | |
ff936e53 | 2130 | return ret; |
b0b667cb KH |
2131 | } |
2132 | } | |
c933ea05 RS |
2133 | |
2134 | /* Run a hook symbol ARGS[0], but use FUNLIST instead of the actual | |
2135 | present value of that symbol. | |
2136 | Call each element of FUNLIST, | |
2137 | passing each of them the rest of ARGS. | |
2138 | The caller (or its caller, etc) must gcpro all of ARGS, | |
2139 | except that it isn't necessary to gcpro ARGS[0]. */ | |
2140 | ||
2141 | Lisp_Object | |
2142 | run_hook_list_with_args (funlist, nargs, args) | |
2143 | Lisp_Object funlist; | |
2144 | int nargs; | |
2145 | Lisp_Object *args; | |
2146 | { | |
2147 | Lisp_Object sym; | |
2148 | Lisp_Object val; | |
2149 | struct gcpro gcpro1, gcpro2; | |
2150 | ||
2151 | sym = args[0]; | |
2152 | GCPRO2 (sym, val); | |
2153 | ||
2154 | for (val = funlist; CONSP (val); val = XCONS (val)->cdr) | |
2155 | { | |
2156 | if (EQ (XCONS (val)->car, Qt)) | |
2157 | { | |
2158 | /* t indicates this hook has a local binding; | |
2159 | it means to run the global binding too. */ | |
2160 | Lisp_Object globals; | |
2161 | ||
2162 | for (globals = Fdefault_value (sym); | |
2163 | CONSP (globals); | |
2164 | globals = XCONS (globals)->cdr) | |
2165 | { | |
2166 | args[0] = XCONS (globals)->car; | |
77d92e05 RS |
2167 | /* In a global value, t should not occur. If it does, we |
2168 | must ignore it to avoid an endless loop. */ | |
2169 | if (!EQ (args[0], Qt)) | |
2170 | Ffuncall (nargs, args); | |
c933ea05 RS |
2171 | } |
2172 | } | |
2173 | else | |
2174 | { | |
2175 | args[0] = XCONS (val)->car; | |
2176 | Ffuncall (nargs, args); | |
2177 | } | |
2178 | } | |
2179 | UNGCPRO; | |
2180 | return Qnil; | |
2181 | } | |
7d48558f RS |
2182 | |
2183 | /* Run the hook HOOK, giving each function the two args ARG1 and ARG2. */ | |
2184 | ||
2185 | void | |
2186 | run_hook_with_args_2 (hook, arg1, arg2) | |
2187 | Lisp_Object hook, arg1, arg2; | |
2188 | { | |
2189 | Lisp_Object temp[3]; | |
2190 | temp[0] = hook; | |
2191 | temp[1] = arg1; | |
2192 | temp[2] = arg2; | |
2193 | ||
2194 | Frun_hook_with_args (3, temp); | |
2195 | } | |
ff936e53 | 2196 | \f |
db9f0278 JB |
2197 | /* Apply fn to arg */ |
2198 | Lisp_Object | |
2199 | apply1 (fn, arg) | |
2200 | Lisp_Object fn, arg; | |
2201 | { | |
a6e3fa71 JB |
2202 | struct gcpro gcpro1; |
2203 | ||
2204 | GCPRO1 (fn); | |
265a9e55 | 2205 | if (NILP (arg)) |
a6e3fa71 JB |
2206 | RETURN_UNGCPRO (Ffuncall (1, &fn)); |
2207 | gcpro1.nvars = 2; | |
db9f0278 JB |
2208 | #ifdef NO_ARG_ARRAY |
2209 | { | |
2210 | Lisp_Object args[2]; | |
2211 | args[0] = fn; | |
2212 | args[1] = arg; | |
a6e3fa71 JB |
2213 | gcpro1.var = args; |
2214 | RETURN_UNGCPRO (Fapply (2, args)); | |
db9f0278 JB |
2215 | } |
2216 | #else /* not NO_ARG_ARRAY */ | |
a6e3fa71 | 2217 | RETURN_UNGCPRO (Fapply (2, &fn)); |
db9f0278 JB |
2218 | #endif /* not NO_ARG_ARRAY */ |
2219 | } | |
2220 | ||
2221 | /* Call function fn on no arguments */ | |
2222 | Lisp_Object | |
2223 | call0 (fn) | |
2224 | Lisp_Object fn; | |
2225 | { | |
a6e3fa71 JB |
2226 | struct gcpro gcpro1; |
2227 | ||
2228 | GCPRO1 (fn); | |
2229 | RETURN_UNGCPRO (Ffuncall (1, &fn)); | |
db9f0278 JB |
2230 | } |
2231 | ||
15285f9f | 2232 | /* Call function fn with 1 argument arg1 */ |
db9f0278 JB |
2233 | /* ARGSUSED */ |
2234 | Lisp_Object | |
15285f9f RS |
2235 | call1 (fn, arg1) |
2236 | Lisp_Object fn, arg1; | |
db9f0278 | 2237 | { |
a6e3fa71 | 2238 | struct gcpro gcpro1; |
db9f0278 | 2239 | #ifdef NO_ARG_ARRAY |
a6e3fa71 JB |
2240 | Lisp_Object args[2]; |
2241 | ||
db9f0278 | 2242 | args[0] = fn; |
15285f9f | 2243 | args[1] = arg1; |
a6e3fa71 JB |
2244 | GCPRO1 (args[0]); |
2245 | gcpro1.nvars = 2; | |
2246 | RETURN_UNGCPRO (Ffuncall (2, args)); | |
db9f0278 | 2247 | #else /* not NO_ARG_ARRAY */ |
a6e3fa71 JB |
2248 | GCPRO1 (fn); |
2249 | gcpro1.nvars = 2; | |
2250 | RETURN_UNGCPRO (Ffuncall (2, &fn)); | |
db9f0278 JB |
2251 | #endif /* not NO_ARG_ARRAY */ |
2252 | } | |
2253 | ||
15285f9f | 2254 | /* Call function fn with 2 arguments arg1, arg2 */ |
db9f0278 JB |
2255 | /* ARGSUSED */ |
2256 | Lisp_Object | |
15285f9f RS |
2257 | call2 (fn, arg1, arg2) |
2258 | Lisp_Object fn, arg1, arg2; | |
db9f0278 | 2259 | { |
a6e3fa71 | 2260 | struct gcpro gcpro1; |
db9f0278 JB |
2261 | #ifdef NO_ARG_ARRAY |
2262 | Lisp_Object args[3]; | |
2263 | args[0] = fn; | |
15285f9f RS |
2264 | args[1] = arg1; |
2265 | args[2] = arg2; | |
a6e3fa71 JB |
2266 | GCPRO1 (args[0]); |
2267 | gcpro1.nvars = 3; | |
2268 | RETURN_UNGCPRO (Ffuncall (3, args)); | |
db9f0278 | 2269 | #else /* not NO_ARG_ARRAY */ |
a6e3fa71 JB |
2270 | GCPRO1 (fn); |
2271 | gcpro1.nvars = 3; | |
2272 | RETURN_UNGCPRO (Ffuncall (3, &fn)); | |
db9f0278 JB |
2273 | #endif /* not NO_ARG_ARRAY */ |
2274 | } | |
2275 | ||
15285f9f | 2276 | /* Call function fn with 3 arguments arg1, arg2, arg3 */ |
db9f0278 JB |
2277 | /* ARGSUSED */ |
2278 | Lisp_Object | |
15285f9f RS |
2279 | call3 (fn, arg1, arg2, arg3) |
2280 | Lisp_Object fn, arg1, arg2, arg3; | |
db9f0278 | 2281 | { |
a6e3fa71 | 2282 | struct gcpro gcpro1; |
db9f0278 JB |
2283 | #ifdef NO_ARG_ARRAY |
2284 | Lisp_Object args[4]; | |
2285 | args[0] = fn; | |
15285f9f RS |
2286 | args[1] = arg1; |
2287 | args[2] = arg2; | |
2288 | args[3] = arg3; | |
a6e3fa71 JB |
2289 | GCPRO1 (args[0]); |
2290 | gcpro1.nvars = 4; | |
2291 | RETURN_UNGCPRO (Ffuncall (4, args)); | |
db9f0278 | 2292 | #else /* not NO_ARG_ARRAY */ |
a6e3fa71 JB |
2293 | GCPRO1 (fn); |
2294 | gcpro1.nvars = 4; | |
2295 | RETURN_UNGCPRO (Ffuncall (4, &fn)); | |
db9f0278 JB |
2296 | #endif /* not NO_ARG_ARRAY */ |
2297 | } | |
2298 | ||
15285f9f | 2299 | /* Call function fn with 4 arguments arg1, arg2, arg3, arg4 */ |
a5a44b91 JB |
2300 | /* ARGSUSED */ |
2301 | Lisp_Object | |
15285f9f RS |
2302 | call4 (fn, arg1, arg2, arg3, arg4) |
2303 | Lisp_Object fn, arg1, arg2, arg3, arg4; | |
a5a44b91 JB |
2304 | { |
2305 | struct gcpro gcpro1; | |
2306 | #ifdef NO_ARG_ARRAY | |
2307 | Lisp_Object args[5]; | |
2308 | args[0] = fn; | |
15285f9f RS |
2309 | args[1] = arg1; |
2310 | args[2] = arg2; | |
2311 | args[3] = arg3; | |
2312 | args[4] = arg4; | |
a5a44b91 JB |
2313 | GCPRO1 (args[0]); |
2314 | gcpro1.nvars = 5; | |
2315 | RETURN_UNGCPRO (Ffuncall (5, args)); | |
2316 | #else /* not NO_ARG_ARRAY */ | |
2317 | GCPRO1 (fn); | |
2318 | gcpro1.nvars = 5; | |
2319 | RETURN_UNGCPRO (Ffuncall (5, &fn)); | |
2320 | #endif /* not NO_ARG_ARRAY */ | |
2321 | } | |
2322 | ||
15285f9f RS |
2323 | /* Call function fn with 5 arguments arg1, arg2, arg3, arg4, arg5 */ |
2324 | /* ARGSUSED */ | |
2325 | Lisp_Object | |
2326 | call5 (fn, arg1, arg2, arg3, arg4, arg5) | |
2327 | Lisp_Object fn, arg1, arg2, arg3, arg4, arg5; | |
2328 | { | |
2329 | struct gcpro gcpro1; | |
2330 | #ifdef NO_ARG_ARRAY | |
2331 | Lisp_Object args[6]; | |
2332 | args[0] = fn; | |
2333 | args[1] = arg1; | |
2334 | args[2] = arg2; | |
2335 | args[3] = arg3; | |
2336 | args[4] = arg4; | |
2337 | args[5] = arg5; | |
2338 | GCPRO1 (args[0]); | |
2339 | gcpro1.nvars = 6; | |
2340 | RETURN_UNGCPRO (Ffuncall (6, args)); | |
2341 | #else /* not NO_ARG_ARRAY */ | |
2342 | GCPRO1 (fn); | |
2343 | gcpro1.nvars = 6; | |
2344 | RETURN_UNGCPRO (Ffuncall (6, &fn)); | |
2345 | #endif /* not NO_ARG_ARRAY */ | |
2346 | } | |
2347 | ||
2348 | /* Call function fn with 6 arguments arg1, arg2, arg3, arg4, arg5, arg6 */ | |
2349 | /* ARGSUSED */ | |
2350 | Lisp_Object | |
2351 | call6 (fn, arg1, arg2, arg3, arg4, arg5, arg6) | |
2352 | Lisp_Object fn, arg1, arg2, arg3, arg4, arg5, arg6; | |
2353 | { | |
2354 | struct gcpro gcpro1; | |
2355 | #ifdef NO_ARG_ARRAY | |
2356 | Lisp_Object args[7]; | |
2357 | args[0] = fn; | |
2358 | args[1] = arg1; | |
2359 | args[2] = arg2; | |
2360 | args[3] = arg3; | |
2361 | args[4] = arg4; | |
2362 | args[5] = arg5; | |
2363 | args[6] = arg6; | |
2364 | GCPRO1 (args[0]); | |
2365 | gcpro1.nvars = 7; | |
2366 | RETURN_UNGCPRO (Ffuncall (7, args)); | |
2367 | #else /* not NO_ARG_ARRAY */ | |
2368 | GCPRO1 (fn); | |
2369 | gcpro1.nvars = 7; | |
2370 | RETURN_UNGCPRO (Ffuncall (7, &fn)); | |
2371 | #endif /* not NO_ARG_ARRAY */ | |
2372 | } | |
2373 | ||
db9f0278 JB |
2374 | DEFUN ("funcall", Ffuncall, Sfuncall, 1, MANY, 0, |
2375 | "Call first argument as a function, passing remaining arguments to it.\n\ | |
fd7fe9a1 | 2376 | Return the value that function returns.\n\ |
db9f0278 JB |
2377 | Thus, (funcall 'cons 'x 'y) returns (x . y).") |
2378 | (nargs, args) | |
2379 | int nargs; | |
2380 | Lisp_Object *args; | |
2381 | { | |
2382 | Lisp_Object fun; | |
2383 | Lisp_Object funcar; | |
2384 | int numargs = nargs - 1; | |
2385 | Lisp_Object lisp_numargs; | |
2386 | Lisp_Object val; | |
2387 | struct backtrace backtrace; | |
2388 | register Lisp_Object *internal_args; | |
2389 | register int i; | |
2390 | ||
2391 | QUIT; | |
2392 | if (consing_since_gc > gc_cons_threshold) | |
a6e3fa71 | 2393 | Fgarbage_collect (); |
db9f0278 JB |
2394 | |
2395 | if (++lisp_eval_depth > max_lisp_eval_depth) | |
2396 | { | |
2397 | if (max_lisp_eval_depth < 100) | |
2398 | max_lisp_eval_depth = 100; | |
2399 | if (lisp_eval_depth > max_lisp_eval_depth) | |
2400 | error ("Lisp nesting exceeds max-lisp-eval-depth"); | |
2401 | } | |
2402 | ||
2403 | backtrace.next = backtrace_list; | |
2404 | backtrace_list = &backtrace; | |
2405 | backtrace.function = &args[0]; | |
2406 | backtrace.args = &args[1]; | |
2407 | backtrace.nargs = nargs - 1; | |
2408 | backtrace.evalargs = 0; | |
2409 | backtrace.debug_on_exit = 0; | |
2410 | ||
2411 | if (debug_on_next_call) | |
2412 | do_debug_on_call (Qlambda); | |
2413 | ||
2414 | retry: | |
2415 | ||
2416 | fun = args[0]; | |
ffd56f97 JB |
2417 | |
2418 | fun = Findirect_function (fun); | |
db9f0278 | 2419 | |
90165123 | 2420 | if (SUBRP (fun)) |
db9f0278 JB |
2421 | { |
2422 | if (numargs < XSUBR (fun)->min_args | |
2423 | || (XSUBR (fun)->max_args >= 0 && XSUBR (fun)->max_args < numargs)) | |
2424 | { | |
a631e24c | 2425 | XSETFASTINT (lisp_numargs, numargs); |
db9f0278 JB |
2426 | return Fsignal (Qwrong_number_of_arguments, Fcons (fun, Fcons (lisp_numargs, Qnil))); |
2427 | } | |
2428 | ||
2429 | if (XSUBR (fun)->max_args == UNEVALLED) | |
2430 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); | |
2431 | ||
2432 | if (XSUBR (fun)->max_args == MANY) | |
2433 | { | |
2434 | val = (*XSUBR (fun)->function) (numargs, args + 1); | |
2435 | goto done; | |
2436 | } | |
2437 | ||
2438 | if (XSUBR (fun)->max_args > numargs) | |
2439 | { | |
2440 | internal_args = (Lisp_Object *) alloca (XSUBR (fun)->max_args * sizeof (Lisp_Object)); | |
2441 | bcopy (args + 1, internal_args, numargs * sizeof (Lisp_Object)); | |
2442 | for (i = numargs; i < XSUBR (fun)->max_args; i++) | |
2443 | internal_args[i] = Qnil; | |
2444 | } | |
2445 | else | |
2446 | internal_args = args + 1; | |
2447 | switch (XSUBR (fun)->max_args) | |
2448 | { | |
2449 | case 0: | |
2450 | val = (*XSUBR (fun)->function) (); | |
2451 | goto done; | |
2452 | case 1: | |
2453 | val = (*XSUBR (fun)->function) (internal_args[0]); | |
2454 | goto done; | |
2455 | case 2: | |
2456 | val = (*XSUBR (fun)->function) (internal_args[0], | |
2457 | internal_args[1]); | |
2458 | goto done; | |
2459 | case 3: | |
2460 | val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1], | |
2461 | internal_args[2]); | |
2462 | goto done; | |
2463 | case 4: | |
2464 | val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1], | |
2465 | internal_args[2], | |
2466 | internal_args[3]); | |
2467 | goto done; | |
2468 | case 5: | |
2469 | val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1], | |
2470 | internal_args[2], internal_args[3], | |
2471 | internal_args[4]); | |
2472 | goto done; | |
2473 | case 6: | |
2474 | val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1], | |
2475 | internal_args[2], internal_args[3], | |
2476 | internal_args[4], internal_args[5]); | |
2477 | goto done; | |
15c65264 RS |
2478 | case 7: |
2479 | val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1], | |
2480 | internal_args[2], internal_args[3], | |
2481 | internal_args[4], internal_args[5], | |
2482 | internal_args[6]); | |
2483 | goto done; | |
db9f0278 | 2484 | |
166c822d KH |
2485 | case 8: |
2486 | val = (*XSUBR (fun)->function) (internal_args[0], internal_args[1], | |
2487 | internal_args[2], internal_args[3], | |
2488 | internal_args[4], internal_args[5], | |
2489 | internal_args[6], internal_args[7]); | |
2490 | goto done; | |
2491 | ||
db9f0278 | 2492 | default: |
70ee42f7 | 2493 | |
166c822d | 2494 | /* If a subr takes more than 8 arguments without using MANY |
70ee42f7 JB |
2495 | or UNEVALLED, we need to extend this function to support it. |
2496 | Until this is done, there is no way to call the function. */ | |
2497 | abort (); | |
db9f0278 JB |
2498 | } |
2499 | } | |
90165123 | 2500 | if (COMPILEDP (fun)) |
db9f0278 JB |
2501 | val = funcall_lambda (fun, numargs, args + 1); |
2502 | else | |
2503 | { | |
2504 | if (!CONSP (fun)) | |
2505 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); | |
2506 | funcar = Fcar (fun); | |
90165123 | 2507 | if (!SYMBOLP (funcar)) |
db9f0278 JB |
2508 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); |
2509 | if (EQ (funcar, Qlambda)) | |
2510 | val = funcall_lambda (fun, numargs, args + 1); | |
2511 | else if (EQ (funcar, Qmocklisp)) | |
2512 | val = ml_apply (fun, Flist (numargs, args + 1)); | |
2513 | else if (EQ (funcar, Qautoload)) | |
2514 | { | |
2515 | do_autoload (fun, args[0]); | |
2516 | goto retry; | |
2517 | } | |
2518 | else | |
2519 | return Fsignal (Qinvalid_function, Fcons (fun, Qnil)); | |
2520 | } | |
2521 | done: | |
2522 | lisp_eval_depth--; | |
2523 | if (backtrace.debug_on_exit) | |
2524 | val = call_debugger (Fcons (Qexit, Fcons (val, Qnil))); | |
2525 | backtrace_list = backtrace.next; | |
2526 | return val; | |
2527 | } | |
2528 | \f | |
2529 | Lisp_Object | |
2530 | apply_lambda (fun, args, eval_flag) | |
2531 | Lisp_Object fun, args; | |
2532 | int eval_flag; | |
2533 | { | |
2534 | Lisp_Object args_left; | |
2535 | Lisp_Object numargs; | |
2536 | register Lisp_Object *arg_vector; | |
2537 | struct gcpro gcpro1, gcpro2, gcpro3; | |
2538 | register int i; | |
2539 | register Lisp_Object tem; | |
2540 | ||
2541 | numargs = Flength (args); | |
2542 | arg_vector = (Lisp_Object *) alloca (XINT (numargs) * sizeof (Lisp_Object)); | |
2543 | args_left = args; | |
2544 | ||
2545 | GCPRO3 (*arg_vector, args_left, fun); | |
2546 | gcpro1.nvars = 0; | |
2547 | ||
2548 | for (i = 0; i < XINT (numargs);) | |
2549 | { | |
2550 | tem = Fcar (args_left), args_left = Fcdr (args_left); | |
2551 | if (eval_flag) tem = Feval (tem); | |
2552 | arg_vector[i++] = tem; | |
2553 | gcpro1.nvars = i; | |
2554 | } | |
2555 | ||
2556 | UNGCPRO; | |
2557 | ||
2558 | if (eval_flag) | |
2559 | { | |
2560 | backtrace_list->args = arg_vector; | |
2561 | backtrace_list->nargs = i; | |
2562 | } | |
2563 | backtrace_list->evalargs = 0; | |
2564 | tem = funcall_lambda (fun, XINT (numargs), arg_vector); | |
2565 | ||
2566 | /* Do the debug-on-exit now, while arg_vector still exists. */ | |
2567 | if (backtrace_list->debug_on_exit) | |
2568 | tem = call_debugger (Fcons (Qexit, Fcons (tem, Qnil))); | |
2569 | /* Don't do it again when we return to eval. */ | |
2570 | backtrace_list->debug_on_exit = 0; | |
2571 | return tem; | |
2572 | } | |
2573 | ||
2574 | /* Apply a Lisp function FUN to the NARGS evaluated arguments in ARG_VECTOR | |
2575 | and return the result of evaluation. | |
2576 | FUN must be either a lambda-expression or a compiled-code object. */ | |
2577 | ||
2578 | Lisp_Object | |
2579 | funcall_lambda (fun, nargs, arg_vector) | |
2580 | Lisp_Object fun; | |
2581 | int nargs; | |
2582 | register Lisp_Object *arg_vector; | |
2583 | { | |
2584 | Lisp_Object val, tem; | |
2585 | register Lisp_Object syms_left; | |
2586 | Lisp_Object numargs; | |
2587 | register Lisp_Object next; | |
2588 | int count = specpdl_ptr - specpdl; | |
2589 | register int i; | |
2590 | int optional = 0, rest = 0; | |
2591 | ||
2592 | specbind (Qmocklisp_arguments, Qt); /* t means NOT mocklisp! */ | |
2593 | ||
a631e24c | 2594 | XSETFASTINT (numargs, nargs); |
db9f0278 | 2595 | |
90165123 | 2596 | if (CONSP (fun)) |
db9f0278 | 2597 | syms_left = Fcar (Fcdr (fun)); |
90165123 | 2598 | else if (COMPILEDP (fun)) |
db9f0278 JB |
2599 | syms_left = XVECTOR (fun)->contents[COMPILED_ARGLIST]; |
2600 | else abort (); | |
2601 | ||
2602 | i = 0; | |
265a9e55 | 2603 | for (; !NILP (syms_left); syms_left = Fcdr (syms_left)) |
db9f0278 JB |
2604 | { |
2605 | QUIT; | |
2606 | next = Fcar (syms_left); | |
90165123 | 2607 | while (!SYMBOLP (next)) |
9ffa21d4 | 2608 | next = Fsignal (Qinvalid_function, Fcons (fun, Qnil)); |
db9f0278 JB |
2609 | if (EQ (next, Qand_rest)) |
2610 | rest = 1; | |
2611 | else if (EQ (next, Qand_optional)) | |
2612 | optional = 1; | |
2613 | else if (rest) | |
2614 | { | |
9ffa21d4 | 2615 | specbind (next, Flist (nargs - i, &arg_vector[i])); |
db9f0278 JB |
2616 | i = nargs; |
2617 | } | |
2618 | else if (i < nargs) | |
2619 | { | |
2620 | tem = arg_vector[i++]; | |
2621 | specbind (next, tem); | |
2622 | } | |
2623 | else if (!optional) | |
2624 | return Fsignal (Qwrong_number_of_arguments, Fcons (fun, Fcons (numargs, Qnil))); | |
2625 | else | |
2626 | specbind (next, Qnil); | |
2627 | } | |
2628 | ||
2629 | if (i < nargs) | |
2630 | return Fsignal (Qwrong_number_of_arguments, Fcons (fun, Fcons (numargs, Qnil))); | |
2631 | ||
90165123 | 2632 | if (CONSP (fun)) |
db9f0278 JB |
2633 | val = Fprogn (Fcdr (Fcdr (fun))); |
2634 | else | |
ca248607 RS |
2635 | { |
2636 | /* If we have not actually read the bytecode string | |
2637 | and constants vector yet, fetch them from the file. */ | |
2638 | if (CONSP (XVECTOR (fun)->contents[COMPILED_BYTECODE])) | |
661c7d6e | 2639 | Ffetch_bytecode (fun); |
ca248607 RS |
2640 | val = Fbyte_code (XVECTOR (fun)->contents[COMPILED_BYTECODE], |
2641 | XVECTOR (fun)->contents[COMPILED_CONSTANTS], | |
2642 | XVECTOR (fun)->contents[COMPILED_STACK_DEPTH]); | |
2643 | } | |
db9f0278 JB |
2644 | return unbind_to (count, val); |
2645 | } | |
661c7d6e KH |
2646 | |
2647 | DEFUN ("fetch-bytecode", Ffetch_bytecode, Sfetch_bytecode, | |
2648 | 1, 1, 0, | |
2649 | "If byte-compiled OBJECT is lazy-loaded, fetch it now.") | |
2650 | (object) | |
2651 | Lisp_Object object; | |
2652 | { | |
2653 | Lisp_Object tem; | |
2654 | ||
2655 | if (COMPILEDP (object) | |
2656 | && CONSP (XVECTOR (object)->contents[COMPILED_BYTECODE])) | |
2657 | { | |
2658 | tem = read_doc_string (XVECTOR (object)->contents[COMPILED_BYTECODE]); | |
5bbdb090 RS |
2659 | if (!CONSP (tem)) |
2660 | error ("invalid byte code"); | |
661c7d6e KH |
2661 | XVECTOR (object)->contents[COMPILED_BYTECODE] = XCONS (tem)->car; |
2662 | XVECTOR (object)->contents[COMPILED_CONSTANTS] = XCONS (tem)->cdr; | |
2663 | } | |
2664 | return object; | |
2665 | } | |
db9f0278 JB |
2666 | \f |
2667 | void | |
2668 | grow_specpdl () | |
2669 | { | |
2670 | register int count = specpdl_ptr - specpdl; | |
2671 | if (specpdl_size >= max_specpdl_size) | |
2672 | { | |
2673 | if (max_specpdl_size < 400) | |
2674 | max_specpdl_size = 400; | |
2675 | if (specpdl_size >= max_specpdl_size) | |
2676 | { | |
debee8fe RS |
2677 | if (!NILP (Vdebug_on_error)) |
2678 | /* Leave room for some specpdl in the debugger. */ | |
2679 | max_specpdl_size = specpdl_size + 100; | |
db9f0278 JB |
2680 | Fsignal (Qerror, |
2681 | Fcons (build_string ("Variable binding depth exceeds max-specpdl-size"), Qnil)); | |
db9f0278 JB |
2682 | } |
2683 | } | |
2684 | specpdl_size *= 2; | |
2685 | if (specpdl_size > max_specpdl_size) | |
2686 | specpdl_size = max_specpdl_size; | |
2687 | specpdl = (struct specbinding *) xrealloc (specpdl, specpdl_size * sizeof (struct specbinding)); | |
2688 | specpdl_ptr = specpdl + count; | |
2689 | } | |
2690 | ||
2691 | void | |
2692 | specbind (symbol, value) | |
2693 | Lisp_Object symbol, value; | |
2694 | { | |
db9f0278 JB |
2695 | Lisp_Object ovalue; |
2696 | ||
9ffa21d4 JB |
2697 | CHECK_SYMBOL (symbol, 0); |
2698 | ||
db9f0278 JB |
2699 | if (specpdl_ptr == specpdl + specpdl_size) |
2700 | grow_specpdl (); | |
2701 | specpdl_ptr->symbol = symbol; | |
2702 | specpdl_ptr->func = 0; | |
d0f7cdc8 | 2703 | specpdl_ptr->old_value = ovalue = find_symbol_value (symbol); |
db9f0278 | 2704 | specpdl_ptr++; |
3d8585a1 | 2705 | if (BUFFER_OBJFWDP (ovalue) || KBOARD_OBJFWDP (ovalue)) |
db9f0278 JB |
2706 | store_symval_forwarding (symbol, ovalue, value); |
2707 | else | |
ab07bca0 | 2708 | set_internal (symbol, value, 1); |
db9f0278 JB |
2709 | } |
2710 | ||
2711 | void | |
2712 | record_unwind_protect (function, arg) | |
1d159538 | 2713 | Lisp_Object (*function) P_ ((Lisp_Object)); |
db9f0278 JB |
2714 | Lisp_Object arg; |
2715 | { | |
2716 | if (specpdl_ptr == specpdl + specpdl_size) | |
2717 | grow_specpdl (); | |
2718 | specpdl_ptr->func = function; | |
2719 | specpdl_ptr->symbol = Qnil; | |
2720 | specpdl_ptr->old_value = arg; | |
2721 | specpdl_ptr++; | |
2722 | } | |
2723 | ||
2724 | Lisp_Object | |
2725 | unbind_to (count, value) | |
2726 | int count; | |
2727 | Lisp_Object value; | |
2728 | { | |
265a9e55 | 2729 | int quitf = !NILP (Vquit_flag); |
db9f0278 JB |
2730 | struct gcpro gcpro1; |
2731 | ||
2732 | GCPRO1 (value); | |
2733 | ||
2734 | Vquit_flag = Qnil; | |
2735 | ||
2736 | while (specpdl_ptr != specpdl + count) | |
2737 | { | |
2738 | --specpdl_ptr; | |
2739 | if (specpdl_ptr->func != 0) | |
2740 | (*specpdl_ptr->func) (specpdl_ptr->old_value); | |
2741 | /* Note that a "binding" of nil is really an unwind protect, | |
2742 | so in that case the "old value" is a list of forms to evaluate. */ | |
265a9e55 | 2743 | else if (NILP (specpdl_ptr->symbol)) |
db9f0278 JB |
2744 | Fprogn (specpdl_ptr->old_value); |
2745 | else | |
ab07bca0 | 2746 | set_internal (specpdl_ptr->symbol, specpdl_ptr->old_value, 1); |
db9f0278 | 2747 | } |
265a9e55 | 2748 | if (NILP (Vquit_flag) && quitf) Vquit_flag = Qt; |
db9f0278 JB |
2749 | |
2750 | UNGCPRO; | |
2751 | ||
2752 | return value; | |
2753 | } | |
2754 | \f | |
2755 | #if 0 | |
2756 | ||
2757 | /* Get the value of symbol's global binding, even if that binding | |
2758 | is not now dynamically visible. */ | |
2759 | ||
2760 | Lisp_Object | |
2761 | top_level_value (symbol) | |
2762 | Lisp_Object symbol; | |
2763 | { | |
2764 | register struct specbinding *ptr = specpdl; | |
2765 | ||
2766 | CHECK_SYMBOL (symbol, 0); | |
2767 | for (; ptr != specpdl_ptr; ptr++) | |
2768 | { | |
2769 | if (EQ (ptr->symbol, symbol)) | |
2770 | return ptr->old_value; | |
2771 | } | |
2772 | return Fsymbol_value (symbol); | |
2773 | } | |
2774 | ||
2775 | Lisp_Object | |
2776 | top_level_set (symbol, newval) | |
2777 | Lisp_Object symbol, newval; | |
2778 | { | |
2779 | register struct specbinding *ptr = specpdl; | |
2780 | ||
2781 | CHECK_SYMBOL (symbol, 0); | |
2782 | for (; ptr != specpdl_ptr; ptr++) | |
2783 | { | |
2784 | if (EQ (ptr->symbol, symbol)) | |
2785 | { | |
2786 | ptr->old_value = newval; | |
2787 | return newval; | |
2788 | } | |
2789 | } | |
2790 | return Fset (symbol, newval); | |
2791 | } | |
2792 | ||
2793 | #endif /* 0 */ | |
2794 | \f | |
2795 | DEFUN ("backtrace-debug", Fbacktrace_debug, Sbacktrace_debug, 2, 2, 0, | |
2796 | "Set the debug-on-exit flag of eval frame LEVEL levels down to FLAG.\n\ | |
2797 | The debugger is entered when that frame exits, if the flag is non-nil.") | |
2798 | (level, flag) | |
2799 | Lisp_Object level, flag; | |
2800 | { | |
2801 | register struct backtrace *backlist = backtrace_list; | |
2802 | register int i; | |
2803 | ||
2804 | CHECK_NUMBER (level, 0); | |
2805 | ||
2806 | for (i = 0; backlist && i < XINT (level); i++) | |
2807 | { | |
2808 | backlist = backlist->next; | |
2809 | } | |
2810 | ||
2811 | if (backlist) | |
265a9e55 | 2812 | backlist->debug_on_exit = !NILP (flag); |
db9f0278 JB |
2813 | |
2814 | return flag; | |
2815 | } | |
2816 | ||
2817 | DEFUN ("backtrace", Fbacktrace, Sbacktrace, 0, 0, "", | |
2818 | "Print a trace of Lisp function calls currently active.\n\ | |
2819 | Output stream used is value of `standard-output'.") | |
2820 | () | |
2821 | { | |
2822 | register struct backtrace *backlist = backtrace_list; | |
2823 | register int i; | |
2824 | Lisp_Object tail; | |
2825 | Lisp_Object tem; | |
2826 | extern Lisp_Object Vprint_level; | |
2827 | struct gcpro gcpro1; | |
2828 | ||
a631e24c | 2829 | XSETFASTINT (Vprint_level, 3); |
db9f0278 JB |
2830 | |
2831 | tail = Qnil; | |
2832 | GCPRO1 (tail); | |
2833 | ||
2834 | while (backlist) | |
2835 | { | |
2836 | write_string (backlist->debug_on_exit ? "* " : " ", 2); | |
2837 | if (backlist->nargs == UNEVALLED) | |
2838 | { | |
2839 | Fprin1 (Fcons (*backlist->function, *backlist->args), Qnil); | |
b6703b02 | 2840 | write_string ("\n", -1); |
db9f0278 JB |
2841 | } |
2842 | else | |
2843 | { | |
2844 | tem = *backlist->function; | |
2845 | Fprin1 (tem, Qnil); /* This can QUIT */ | |
2846 | write_string ("(", -1); | |
2847 | if (backlist->nargs == MANY) | |
2848 | { | |
2849 | for (tail = *backlist->args, i = 0; | |
265a9e55 | 2850 | !NILP (tail); |
db9f0278 JB |
2851 | tail = Fcdr (tail), i++) |
2852 | { | |
2853 | if (i) write_string (" ", -1); | |
2854 | Fprin1 (Fcar (tail), Qnil); | |
2855 | } | |
2856 | } | |
2857 | else | |
2858 | { | |
2859 | for (i = 0; i < backlist->nargs; i++) | |
2860 | { | |
2861 | if (i) write_string (" ", -1); | |
2862 | Fprin1 (backlist->args[i], Qnil); | |
2863 | } | |
2864 | } | |
b6703b02 | 2865 | write_string (")\n", -1); |
db9f0278 | 2866 | } |
db9f0278 JB |
2867 | backlist = backlist->next; |
2868 | } | |
2869 | ||
2870 | Vprint_level = Qnil; | |
2871 | UNGCPRO; | |
2872 | return Qnil; | |
2873 | } | |
2874 | ||
2875 | DEFUN ("backtrace-frame", Fbacktrace_frame, Sbacktrace_frame, 1, 1, "", | |
79e8bfbf | 2876 | "Return the function and arguments NFRAMES up from current execution point.\n\ |
db9f0278 JB |
2877 | If that frame has not evaluated the arguments yet (or is a special form),\n\ |
2878 | the value is (nil FUNCTION ARG-FORMS...).\n\ | |
2879 | If that frame has evaluated its arguments and called its function already,\n\ | |
2880 | the value is (t FUNCTION ARG-VALUES...).\n\ | |
2881 | A &rest arg is represented as the tail of the list ARG-VALUES.\n\ | |
2882 | FUNCTION is whatever was supplied as car of evaluated list,\n\ | |
2883 | or a lambda expression for macro calls.\n\ | |
79e8bfbf | 2884 | If NFRAMES is more than the number of frames, the value is nil.") |
db9f0278 JB |
2885 | (nframes) |
2886 | Lisp_Object nframes; | |
2887 | { | |
2888 | register struct backtrace *backlist = backtrace_list; | |
2889 | register int i; | |
2890 | Lisp_Object tem; | |
2891 | ||
2892 | CHECK_NATNUM (nframes, 0); | |
2893 | ||
2894 | /* Find the frame requested. */ | |
b6703b02 | 2895 | for (i = 0; backlist && i < XFASTINT (nframes); i++) |
db9f0278 JB |
2896 | backlist = backlist->next; |
2897 | ||
2898 | if (!backlist) | |
2899 | return Qnil; | |
2900 | if (backlist->nargs == UNEVALLED) | |
2901 | return Fcons (Qnil, Fcons (*backlist->function, *backlist->args)); | |
2902 | else | |
2903 | { | |
2904 | if (backlist->nargs == MANY) | |
2905 | tem = *backlist->args; | |
2906 | else | |
2907 | tem = Flist (backlist->nargs, backlist->args); | |
2908 | ||
2909 | return Fcons (Qt, Fcons (*backlist->function, tem)); | |
2910 | } | |
2911 | } | |
2912 | \f | |
dfcf069d | 2913 | void |
db9f0278 JB |
2914 | syms_of_eval () |
2915 | { | |
2916 | DEFVAR_INT ("max-specpdl-size", &max_specpdl_size, | |
7eaada67 RS |
2917 | "*Limit on number of Lisp variable bindings & unwind-protects.\n\ |
2918 | If Lisp code tries to make more than this many at once,\n\ | |
2919 | an error is signaled."); | |
db9f0278 JB |
2920 | |
2921 | DEFVAR_INT ("max-lisp-eval-depth", &max_lisp_eval_depth, | |
7eaada67 | 2922 | "*Limit on depth in `eval', `apply' and `funcall' before error.\n\ |
db9f0278 JB |
2923 | This limit is to catch infinite recursions for you before they cause\n\ |
2924 | actual stack overflow in C, which would be fatal for Emacs.\n\ | |
2925 | You can safely make it considerably larger than its default value,\n\ | |
2926 | if that proves inconveniently small."); | |
2927 | ||
2928 | DEFVAR_LISP ("quit-flag", &Vquit_flag, | |
2929 | "Non-nil causes `eval' to abort, unless `inhibit-quit' is non-nil.\n\ | |
d0b68896 | 2930 | Typing C-g sets `quit-flag' non-nil, regardless of `inhibit-quit'."); |
db9f0278 JB |
2931 | Vquit_flag = Qnil; |
2932 | ||
2933 | DEFVAR_LISP ("inhibit-quit", &Vinhibit_quit, | |
2934 | "Non-nil inhibits C-g quitting from happening immediately.\n\ | |
2935 | Note that `quit-flag' will still be set by typing C-g,\n\ | |
690337b7 | 2936 | so a quit will be signaled as soon as `inhibit-quit' is nil.\n\ |
db9f0278 JB |
2937 | To prevent this happening, set `quit-flag' to nil\n\ |
2938 | before making `inhibit-quit' nil."); | |
2939 | Vinhibit_quit = Qnil; | |
2940 | ||
ad236261 JB |
2941 | Qinhibit_quit = intern ("inhibit-quit"); |
2942 | staticpro (&Qinhibit_quit); | |
2943 | ||
db9f0278 JB |
2944 | Qautoload = intern ("autoload"); |
2945 | staticpro (&Qautoload); | |
2946 | ||
2947 | Qdebug_on_error = intern ("debug-on-error"); | |
2948 | staticpro (&Qdebug_on_error); | |
2949 | ||
2950 | Qmacro = intern ("macro"); | |
2951 | staticpro (&Qmacro); | |
2952 | ||
2953 | /* Note that the process handling also uses Qexit, but we don't want | |
2954 | to staticpro it twice, so we just do it here. */ | |
2955 | Qexit = intern ("exit"); | |
2956 | staticpro (&Qexit); | |
2957 | ||
2958 | Qinteractive = intern ("interactive"); | |
2959 | staticpro (&Qinteractive); | |
2960 | ||
2961 | Qcommandp = intern ("commandp"); | |
2962 | staticpro (&Qcommandp); | |
2963 | ||
2964 | Qdefun = intern ("defun"); | |
2965 | staticpro (&Qdefun); | |
2966 | ||
2967 | Qand_rest = intern ("&rest"); | |
2968 | staticpro (&Qand_rest); | |
2969 | ||
2970 | Qand_optional = intern ("&optional"); | |
2971 | staticpro (&Qand_optional); | |
2972 | ||
128c0f66 | 2973 | DEFVAR_LISP ("stack-trace-on-error", &Vstack_trace_on_error, |
db9f0278 | 2974 | "*Non-nil means automatically display a backtrace buffer\n\ |
128c0f66 RM |
2975 | after any error that is handled by the editor command loop.\n\ |
2976 | If the value is a list, an error only means to display a backtrace\n\ | |
2977 | if one of its condition symbols appears in the list."); | |
2978 | Vstack_trace_on_error = Qnil; | |
db9f0278 | 2979 | |
128c0f66 | 2980 | DEFVAR_LISP ("debug-on-error", &Vdebug_on_error, |
db9f0278 JB |
2981 | "*Non-nil means enter debugger if an error is signaled.\n\ |
2982 | Does not apply to errors handled by `condition-case'.\n\ | |
128c0f66 RM |
2983 | If the value is a list, an error only means to enter the debugger\n\ |
2984 | if one of its condition symbols appears in the list.\n\ | |
db9f0278 | 2985 | See also variable `debug-on-quit'."); |
128c0f66 | 2986 | Vdebug_on_error = Qnil; |
db9f0278 | 2987 | |
fc950e09 KH |
2988 | DEFVAR_LISP ("debug-ignored-errors", &Vdebug_ignored_errors, |
2989 | "*List of errors for which the debugger should not be called.\n\ | |
2990 | Each element may be a condition-name or a regexp that matches error messages.\n\ | |
2991 | If any element applies to a given error, that error skips the debugger\n\ | |
2992 | and just returns to top level.\n\ | |
2993 | This overrides the variable `debug-on-error'.\n\ | |
2994 | It does not apply to errors handled by `condition-case'."); | |
2995 | Vdebug_ignored_errors = Qnil; | |
2996 | ||
db9f0278 | 2997 | DEFVAR_BOOL ("debug-on-quit", &debug_on_quit, |
d0b68896 | 2998 | "*Non-nil means enter debugger if quit is signaled (C-g, for example).\n\ |
1b7d8239 | 2999 | Does not apply if quit is handled by a `condition-case'."); |
db9f0278 JB |
3000 | debug_on_quit = 0; |
3001 | ||
3002 | DEFVAR_BOOL ("debug-on-next-call", &debug_on_next_call, | |
3003 | "Non-nil means enter debugger before next `eval', `apply' or `funcall'."); | |
3004 | ||
3005 | DEFVAR_LISP ("debugger", &Vdebugger, | |
3006 | "Function to call to invoke debugger.\n\ | |
3007 | If due to frame exit, args are `exit' and the value being returned;\n\ | |
3008 | this function's value will be returned instead of that.\n\ | |
3009 | If due to error, args are `error' and a list of the args to `signal'.\n\ | |
3010 | If due to `apply' or `funcall' entry, one arg, `lambda'.\n\ | |
3011 | If due to `eval' entry, one arg, t."); | |
3012 | Vdebugger = Qnil; | |
3013 | ||
61ede770 RS |
3014 | DEFVAR_LISP ("signal-hook-function", &Vsignal_hook_function, |
3015 | "If non-nil, this is a function for `signal' to call.\n\ | |
3016 | It receives the same arguments that `signal' was given.\n\ | |
3017 | The Edebug package uses this to regain control."); | |
3018 | Vsignal_hook_function = Qnil; | |
3019 | ||
db9f0278 JB |
3020 | Qmocklisp_arguments = intern ("mocklisp-arguments"); |
3021 | staticpro (&Qmocklisp_arguments); | |
3022 | DEFVAR_LISP ("mocklisp-arguments", &Vmocklisp_arguments, | |
3023 | "While in a mocklisp function, the list of its unevaluated args."); | |
3024 | Vmocklisp_arguments = Qt; | |
3025 | ||
57a6e758 | 3026 | DEFVAR_LISP ("debug-on-signal", &Vdebug_on_signal, |
61ede770 RS |
3027 | "*Non-nil means call the debugger regardless of condition handlers.\n\ |
3028 | Note that `debug-on-error', `debug-on-quit' and friends\n\ | |
3029 | still determine whether to handle the particular condition."); | |
57a6e758 | 3030 | Vdebug_on_signal = Qnil; |
61ede770 | 3031 | |
6e6e9f08 RS |
3032 | Vrun_hooks = intern ("run-hooks"); |
3033 | staticpro (&Vrun_hooks); | |
db9f0278 JB |
3034 | |
3035 | staticpro (&Vautoload_queue); | |
3036 | Vautoload_queue = Qnil; | |
3037 | ||
3038 | defsubr (&Sor); | |
3039 | defsubr (&Sand); | |
3040 | defsubr (&Sif); | |
3041 | defsubr (&Scond); | |
3042 | defsubr (&Sprogn); | |
3043 | defsubr (&Sprog1); | |
3044 | defsubr (&Sprog2); | |
3045 | defsubr (&Ssetq); | |
3046 | defsubr (&Squote); | |
3047 | defsubr (&Sfunction); | |
3048 | defsubr (&Sdefun); | |
3049 | defsubr (&Sdefmacro); | |
3050 | defsubr (&Sdefvar); | |
3051 | defsubr (&Sdefconst); | |
3052 | defsubr (&Suser_variable_p); | |
3053 | defsubr (&Slet); | |
3054 | defsubr (&SletX); | |
3055 | defsubr (&Swhile); | |
3056 | defsubr (&Smacroexpand); | |
3057 | defsubr (&Scatch); | |
3058 | defsubr (&Sthrow); | |
3059 | defsubr (&Sunwind_protect); | |
3060 | defsubr (&Scondition_case); | |
3061 | defsubr (&Ssignal); | |
3062 | defsubr (&Sinteractive_p); | |
3063 | defsubr (&Scommandp); | |
3064 | defsubr (&Sautoload); | |
3065 | defsubr (&Seval); | |
3066 | defsubr (&Sapply); | |
3067 | defsubr (&Sfuncall); | |
ff936e53 SM |
3068 | defsubr (&Srun_hooks); |
3069 | defsubr (&Srun_hook_with_args); | |
3070 | defsubr (&Srun_hook_with_args_until_success); | |
3071 | defsubr (&Srun_hook_with_args_until_failure); | |
661c7d6e | 3072 | defsubr (&Sfetch_bytecode); |
db9f0278 JB |
3073 | defsubr (&Sbacktrace_debug); |
3074 | defsubr (&Sbacktrace); | |
3075 | defsubr (&Sbacktrace_frame); | |
3076 | } |