1 ;;;; bootstrapping fundamental machinery (e.g. DEFUN, DEFCONSTANT,
2 ;;;; DEFVAR) from special forms and primitive functions
4 ;;;; KLUDGE: The bootstrapping aspect of this is now obsolete. It was
5 ;;;; originally intended that this file file would be loaded into a
6 ;;;; Lisp image which had Common Lisp primitives defined, and DEFMACRO
7 ;;;; defined, and little else. Since then that approach has been
8 ;;;; dropped and this file has been modified somewhat to make it work
9 ;;;; more cleanly when used to predefine macros at
10 ;;;; build-the-cross-compiler time.
12 ;;;; This software is part of the SBCL system. See the README file for
13 ;;;; more information.
15 ;;;; This software is derived from the CMU CL system, which was
16 ;;;; written at Carnegie Mellon University and released into the
17 ;;;; public domain. The software is in the public domain and is
18 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
19 ;;;; files for more information.
21 (in-package "SB!IMPL")
26 (defmacro-mundanely in-package (string-designator)
27 (let ((string (string string-designator)))
28 `(eval-when (:compile-toplevel :load-toplevel :execute)
29 (setq *package* (find-undeleted-package-or-lose ,string)))))
31 ;;;; MULTIPLE-VALUE-FOO
33 (defun list-of-symbols-p (x)
37 (defmacro-mundanely multiple-value-bind (vars value-form &body body)
38 (if (list-of-symbols-p vars)
39 ;; It's unclear why it would be important to special-case the LENGTH=1 case
40 ;; at this level, but the CMU CL code did it, so.. -- WHN 19990411
41 (if (= (length vars) 1)
42 `(let ((,(car vars) ,value-form))
44 (let ((ignore (sb!xc:gensym)))
45 `(multiple-value-call #'(lambda (&optional ,@(mapcar #'list vars)
47 (declare (ignore ,ignore))
50 (error "Vars is not a list of symbols: ~S" vars)))
52 (defmacro-mundanely multiple-value-setq (vars value-form)
53 (unless (list-of-symbols-p vars)
54 (error "Vars is not a list of symbols: ~S" vars))
55 ;; MULTIPLE-VALUE-SETQ is required to always return just the primary
56 ;; value of the value-from, even if there are no vars. (SETF VALUES)
57 ;; in turn is required to return as many values as there are
58 ;; value-places, hence this:
60 `(values (setf (values ,@vars) ,value-form))
61 `(values ,value-form)))
63 (defmacro-mundanely multiple-value-list (value-form)
64 `(multiple-value-call #'list ,value-form))
66 ;;;; various conditional constructs
68 ;;; COND defined in terms of IF
69 (defmacro-mundanely cond (&rest clauses)
72 (let ((clause (first clauses))
73 (more (rest clauses)))
75 (error "COND clause is not a list: ~S" clause)
76 (let ((test (first clause))
77 (forms (rest clause)))
79 (let ((n-result (gensym)))
80 `(let ((,n-result ,test))
85 ;; THE to perserve non-toplevelness for FOO in
87 `(the t (progn ,@forms))
90 ,(when more `(cond ,@more))))))))))
92 (defmacro-mundanely when (test &body forms)
94 "If the first argument is true, the rest of the forms are
95 evaluated as a PROGN."
96 `(if ,test (progn ,@forms) nil))
98 (defmacro-mundanely unless (test &body forms)
100 "If the first argument is not true, the rest of the forms are
101 evaluated as a PROGN."
102 `(if ,test nil (progn ,@forms)))
104 (defmacro-mundanely and (&rest forms)
105 (cond ((endp forms) t)
107 ;; Preserve non-toplevelness of the form!
108 `(the t ,(first forms)))
114 (defmacro-mundanely or (&rest forms)
115 (cond ((endp forms) nil)
117 ;; Preserve non-toplevelness of the form!
118 `(the t ,(first forms)))
120 (let ((n-result (gensym)))
121 `(let ((,n-result ,(first forms)))
124 (or ,@(rest forms))))))))
126 ;;;; various sequencing constructs
128 (flet ((prog-expansion-from-let (varlist body-decls let)
129 (multiple-value-bind (body decls)
130 (parse-body body-decls :doc-string-allowed nil)
134 (tagbody ,@body))))))
135 (defmacro-mundanely prog (varlist &body body-decls)
136 (prog-expansion-from-let varlist body-decls 'let))
137 (defmacro-mundanely prog* (varlist &body body-decls)
138 (prog-expansion-from-let varlist body-decls 'let*)))
140 (defmacro-mundanely prog1 (result &body body)
141 (let ((n-result (gensym)))
142 `(let ((,n-result ,result))
146 (defmacro-mundanely prog2 (form1 result &body body)
147 `(prog1 (progn ,form1 ,result) ,@body))
151 ;;; Should we save the inline expansion of the function named NAME?
152 (defun inline-fun-name-p (name)
154 ;; the normal reason for saving the inline expansion
155 (let ((inlinep (info :function :inlinep name)))
156 (member inlinep '(:inline :maybe-inline)))
157 ;; another reason for saving the inline expansion: If the
158 ;; ANSI-recommended idiom
159 ;; (DECLAIM (INLINE FOO))
161 ;; (DECLAIM (NOTINLINE FOO))
162 ;; has been used, and then we later do another
164 ;; without a preceding
165 ;; (DECLAIM (INLINE FOO))
166 ;; what should we do with the old inline expansion when we see the
167 ;; new DEFUN? Overwriting it with the new definition seems like
168 ;; the only unsurprising choice.
169 (info :function :inline-expansion-designator name)))
171 (defmacro-mundanely defun (&environment env name args &body body)
172 "Define a function at top level."
174 (unless (symbol-package (fun-name-block-name name))
175 (warn "DEFUN of uninterned function name ~S (tricky for GENESIS)" name))
176 (multiple-value-bind (forms decls doc) (parse-body body)
177 (let* (;; stuff shared between LAMBDA and INLINE-LAMBDA and NAMED-LAMBDA
180 (block ,(fun-name-block-name name)
182 (lambda `(lambda ,@lambda-guts))
184 (named-lambda `(named-lambda ,name ,@lambda-guts))
186 (when (inline-fun-name-p name)
187 ;; we want to attempt to inline, so complain if we can't
188 (or (sb!c:maybe-inline-syntactic-closure lambda env)
191 #-sb-xc-host sb!c:maybe-compiler-notify
192 "lexical environment too hairy, can't inline DEFUN ~S"
196 ;; In cross-compilation of toplevel DEFUNs, we arrange for
197 ;; the LAMBDA to be statically linked by GENESIS.
199 ;; It may seem strangely inconsistent not to use NAMED-LAMBDA
200 ;; here instead of LAMBDA. The reason is historical:
201 ;; COLD-FSET was written before NAMED-LAMBDA, and has special
202 ;; logic of its own to notify the compiler about NAME.
204 (cold-fset ,name ,lambda)
206 (eval-when (:compile-toplevel)
207 (sb!c:%compiler-defun ',name ',inline-lambda t))
208 (eval-when (:load-toplevel :execute)
210 ;; In normal compilation (not for cold load) this is
211 ;; where the compiled LAMBDA first appears. In
212 ;; cross-compilation, we manipulate the
213 ;; previously-statically-linked LAMBDA here.
214 #-sb-xc-host ,named-lambda
215 #+sb-xc-host (fdefinition ',name)
218 (sb!c:source-location)))))))
221 (defun %defun (name def doc inline-lambda source-location)
222 (declare (type function def))
223 (declare (type (or null simple-string) doc))
224 (aver (legal-fun-name-p name)) ; should've been checked by DEFMACRO DEFUN
225 (sb!c:%compiler-defun name inline-lambda nil)
227 (/show0 "redefining NAME in %DEFUN")
228 (warn 'sb!kernel::redefinition-with-defun
231 :new-location source-location))
232 (setf (sb!xc:fdefinition name) def)
233 ;; %COMPILER-DEFUN doesn't do this except at compile-time, when it
234 ;; also checks package locks. By doing this here we let (SETF
235 ;; FDEFINITION) do the load-time package lock checking before
236 ;; we frob any existing inline expansions.
237 (sb!c::%set-inline-expansion name nil inline-lambda)
239 (sb!c::note-name-defined name :function)
242 (setf (%fun-doc def) doc))
246 ;;;; DEFVAR and DEFPARAMETER
248 (defmacro-mundanely defvar (var &optional (val nil valp) (doc nil docp))
250 "Define a special variable at top level. Declare the variable
251 SPECIAL and, optionally, initialize it. If the variable already has a
252 value, the old value is not clobbered. The third argument is an optional
253 documentation string for the variable."
255 (eval-when (:compile-toplevel)
256 (%compiler-defvar ',var))
257 (eval-when (:load-toplevel :execute)
258 (%defvar ',var (unless (boundp ',var) ,val)
260 (sb!c:source-location)))))
262 (defmacro-mundanely defparameter (var val &optional (doc nil docp))
264 "Define a parameter that is not normally changed by the program,
265 but that may be changed without causing an error. Declare the
266 variable special and sets its value to VAL, overwriting any
267 previous value. The third argument is an optional documentation
268 string for the parameter."
270 (eval-when (:compile-toplevel)
271 (%compiler-defvar ',var))
272 (eval-when (:load-toplevel :execute)
273 (%defparameter ',var ,val ,doc ',docp (sb!c:source-location)))))
275 (defun %compiler-defvar (var)
276 (sb!xc:proclaim `(special ,var)))
279 (defun %defvar (var val valp doc docp source-location)
280 (%compiler-defvar var)
285 (setf (fdocumentation var 'variable) doc))
286 (sb!c:with-source-location (source-location)
287 (setf (info :source-location :variable var) source-location))
291 (defun %defparameter (var val doc docp source-location)
292 (%compiler-defvar var)
295 (setf (fdocumentation var 'variable) doc))
296 (sb!c:with-source-location (source-location)
297 (setf (info :source-location :variable var) source-location))
300 ;;;; iteration constructs
302 ;;; (These macros are defined in terms of a function FROB-DO-BODY which
303 ;;; is also used by SB!INT:DO-ANONYMOUS. Since these macros should not
304 ;;; be loaded on the cross-compilation host, but SB!INT:DO-ANONYMOUS
305 ;;; and FROB-DO-BODY should be, these macros can't conveniently be in
306 ;;; the same file as FROB-DO-BODY.)
307 (defmacro-mundanely do (varlist endlist &body body)
309 "DO ({(Var [Init] [Step])}*) (Test Exit-Form*) Declaration* Form*
310 Iteration construct. Each Var is initialized in parallel to the value of the
311 specified Init form. On subsequent iterations, the Vars are assigned the
312 value of the Step form (if any) in parallel. The Test is evaluated before
313 each evaluation of the body Forms. When the Test is true, the Exit-Forms
314 are evaluated as a PROGN, with the result being the value of the DO. A block
315 named NIL is established around the entire expansion, allowing RETURN to be
316 used as an alternate exit mechanism."
317 (frob-do-body varlist endlist body 'let 'psetq 'do nil))
318 (defmacro-mundanely do* (varlist endlist &body body)
320 "DO* ({(Var [Init] [Step])}*) (Test Exit-Form*) Declaration* Form*
321 Iteration construct. Each Var is initialized sequentially (like LET*) to the
322 value of the specified Init form. On subsequent iterations, the Vars are
323 sequentially assigned the value of the Step form (if any). The Test is
324 evaluated before each evaluation of the body Forms. When the Test is true,
325 the Exit-Forms are evaluated as a PROGN, with the result being the value
326 of the DO. A block named NIL is established around the entire expansion,
327 allowing RETURN to be used as an alternate exit mechanism."
328 (frob-do-body varlist endlist body 'let* 'setq 'do* nil))
330 ;;; DOTIMES and DOLIST could be defined more concisely using
331 ;;; destructuring macro lambda lists or DESTRUCTURING-BIND, but then
332 ;;; it'd be tricky to use them before those things were defined.
333 ;;; They're used enough times before destructuring mechanisms are
334 ;;; defined that it looks as though it's worth just implementing them
335 ;;; ASAP, at the cost of being unable to use the standard
336 ;;; destructuring mechanisms.
337 (defmacro-mundanely dotimes ((var count &optional (result nil)) &body body)
338 (cond ((integerp count)
339 `(do ((,var 0 (1+ ,var)))
340 ((>= ,var ,count) ,result)
341 (declare (type unsigned-byte ,var))
344 (let ((c (gensym "COUNT")))
345 `(do ((,var 0 (1+ ,var))
347 ((>= ,var ,c) ,result)
348 (declare (type unsigned-byte ,var)
352 (defmacro-mundanely dolist ((var list &optional (result nil)) &body body &environment env)
353 ;; We repeatedly bind the var instead of setting it so that we never
354 ;; have to give the var an arbitrary value such as NIL (which might
355 ;; conflict with a declaration). If there is a result form, we
356 ;; introduce a gratuitous binding of the variable to NIL without the
357 ;; declarations, then evaluate the result form in that
358 ;; environment. We spuriously reference the gratuitous variable,
359 ;; since we don't want to use IGNORABLE on what might be a special
361 (multiple-value-bind (forms decls) (parse-body body :doc-string-allowed nil)
362 (let* ((n-list (gensym "N-LIST"))
363 (start (gensym "START")))
364 (multiple-value-bind (clist members clist-ok)
365 (cond ((sb!xc:constantp list env)
366 (let ((value (constant-form-value list env)))
367 (multiple-value-bind (all dot) (list-members value :max-length 20)
369 ;; Full warning is too much: the user may terminate the loop
370 ;; early enough. Contents are still right, though.
371 (style-warn "Dotted list ~S in DOLIST." value))
373 (values value nil nil)
374 (values value all t)))))
375 ((and (consp list) (eq 'list (car list))
376 (every (lambda (arg) (sb!xc:constantp arg env)) (cdr list)))
377 (let ((values (mapcar (lambda (arg) (constant-form-value arg env)) (cdr list))))
378 (values values values t)))
380 (values nil nil nil)))
382 (let ((,n-list ,(if clist-ok (list 'quote clist) list)))
385 (unless (endp ,n-list)
386 (let ((,var ,(if clist-ok
387 `(truly-the (member ,@members) (car ,n-list))
390 (setq ,n-list (cdr ,n-list))
395 ;; Filter out TYPE declarations (VAR gets bound to NIL,
396 ;; and might have a conflicting type declaration) and
397 ;; IGNORE (VAR might be ignored in the loop body, but
398 ;; it's used in the result form).
399 ,@(filter-dolist-declarations decls)
404 ;;;; conditions, handlers, restarts
406 ;;; KLUDGE: we PROCLAIM these special here so that we can use restart
407 ;;; macros in the compiler before the DEFVARs are compiled.
409 ;;; For an explanation of these data structures, see DEFVARs in
410 ;;; target-error.lisp.
411 (sb!xc:proclaim '(special *handler-clusters* *restart-clusters*))
413 (defmacro-mundanely with-condition-restarts
414 (condition-form restarts-form &body body)
416 "Evaluates the BODY in a dynamic environment where the restarts in the list
417 RESTARTS-FORM are associated with the condition returned by CONDITION-FORM.
418 This allows FIND-RESTART, etc., to recognize restarts that are not related
419 to the error currently being debugged. See also RESTART-CASE."
420 (once-only ((restarts restarts-form))
421 (with-unique-names (restart)
422 ;; FIXME: check the need for interrupt-safety.
425 (dolist (,restart ,restarts)
426 (push ,condition-form
427 (restart-associated-conditions ,restart)))
429 (dolist (,restart ,restarts)
430 (pop (restart-associated-conditions ,restart)))))))
432 (defmacro-mundanely restart-bind (bindings &body forms)
434 "(RESTART-BIND ({(case-name function {keyword value}*)}*) forms)
435 Executes forms in a dynamic context where the given bindings are in
436 effect. Users probably want to use RESTART-CASE. A case-name of NIL
437 indicates an anonymous restart. When bindings contain the same
438 restart name, FIND-RESTART will find the first such binding."
439 (flet ((parse-binding (binding)
440 (unless (>= (length binding) 2)
441 (error "ill-formed restart binding: ~S" binding))
442 (destructuring-bind (name function
443 &key interactive-function
447 (unless (or name report-function)
448 (warn "Unnamed restart does not have a report function: ~
450 `(make-restart ',name ,function
452 ,interactive-function
454 `(,test-function))))))
455 `(let ((*restart-clusters*
456 (cons (list ,@(mapcar #'parse-binding bindings))
457 *restart-clusters*)))
460 ;;; Wrap the RESTART-CASE expression in a WITH-CONDITION-RESTARTS if
461 ;;; appropriate. Gross, but it's what the book seems to say...
462 (defun munge-restart-case-expression (expression env)
463 (let ((exp (%macroexpand expression env)))
465 (let* ((name (car exp))
466 (args (if (eq name 'cerror) (cddr exp) (cdr exp))))
467 (if (member name '(signal error cerror warn))
468 (once-only ((n-cond `(coerce-to-condition
472 (warn 'simple-warning)
473 (signal 'simple-condition)
476 `(with-condition-restarts
478 (car *restart-clusters*)
479 ,(if (eq name 'cerror)
480 `(cerror ,(second exp) ,n-cond)
485 (defmacro-mundanely restart-case (expression &body clauses &environment env)
487 "(RESTART-CASE form {(case-name arg-list {keyword value}* body)}*)
488 The form is evaluated in a dynamic context where the clauses have
489 special meanings as points to which control may be transferred (see
490 INVOKE-RESTART). When clauses contain the same case-name,
491 FIND-RESTART will find the first such clause. If form is a call to
492 SIGNAL, ERROR, CERROR or WARN (or macroexpands into such) then the
493 signalled condition will be associated with the new restarts."
494 ;; PARSE-CLAUSE (which uses PARSE-KEYWORDS-AND-BODY) is used to
495 ;; parse all clauses into lists of the form
497 ;; (NAME TAG KEYWORDS LAMBDA-LIST BODY)
499 ;; where KEYWORDS are suitable keywords for use in HANDLER-BIND
500 ;; bindings. These lists are then passed to
501 ;; * MAKE-BINDING which generates bindings for the respective NAME
503 ;; * MAKE-APPLY-AND-RETURN which generates TAGBODY entries executing
504 ;; the respective BODY.
505 (let ((block-tag (sb!xc:gensym "BLOCK"))
507 (labels ((parse-keywords-and-body (keywords-and-body)
508 (do ((form keywords-and-body (cddr form))
510 (destructuring-bind (&optional key (arg nil argp) &rest rest)
512 (declare (ignore rest))
516 ((and (eq key :report) argp)
517 (list :report-function
520 (write-string ,arg stream))
522 ((and (eq key :interactive) argp)
523 (list :interactive-function `#',arg))
524 ((and (eq key :test) argp)
525 (list :test-function `#',arg))
527 (return (values result form))))
529 (parse-clause (clause)
530 (unless (and (listp clause) (>= (length clause) 2)
531 (listp (second clause)))
532 (error "ill-formed ~S clause, no lambda-list:~% ~S"
533 'restart-case clause))
534 (destructuring-bind (name lambda-list &body body) clause
535 (multiple-value-bind (keywords body)
536 (parse-keywords-and-body body)
537 (list name (sb!xc:gensym "TAG") keywords lambda-list body))))
538 (make-binding (clause-data)
539 (destructuring-bind (name tag keywords lambda-list body) clause-data
540 (declare (ignore body))
542 (lambda ,(cond ((null lambda-list)
544 ((and (null (cdr lambda-list))
545 (not (member (car lambda-list)
546 '(&optional &key &aux))))
550 ,@(when lambda-list `((setq ,temp-var temp)))
551 (locally (declare (optimize (safety 0)))
554 (make-apply-and-return (clause-data)
555 (destructuring-bind (name tag keywords lambda-list body) clause-data
556 (declare (ignore name keywords))
557 `(,tag (return-from ,block-tag
558 ,(cond ((null lambda-list)
560 ((and (null (cdr lambda-list))
561 (not (member (car lambda-list)
562 '(&optional &key &aux))))
563 `(funcall (lambda ,lambda-list ,@body) ,temp-var))
565 `(apply (lambda ,lambda-list ,@body) ,temp-var))))))))
566 (let ((clauses-data (mapcar #'parse-clause clauses)))
568 (let ((,temp-var nil))
569 (declare (ignorable ,temp-var))
572 ,(mapcar #'make-binding clauses-data)
573 (return-from ,block-tag
574 ,(munge-restart-case-expression expression env)))
575 ,@(mapcan #'make-apply-and-return clauses-data))))))))
577 (defmacro-mundanely with-simple-restart ((restart-name format-string
578 &rest format-arguments)
581 "(WITH-SIMPLE-RESTART (restart-name format-string format-arguments)
583 If restart-name is not invoked, then all values returned by forms are
584 returned. If control is transferred to this restart, it immediately
585 returns the values NIL and T."
587 ;; If there's just one body form, then don't use PROGN. This allows
588 ;; RESTART-CASE to "see" calls to ERROR, etc.
589 ,(if (= (length forms) 1) (car forms) `(progn ,@forms))
591 :report (lambda (stream)
592 (format stream ,format-string ,@format-arguments))
595 (defmacro-mundanely %handler-bind (bindings form)
596 (let ((member-if (member-if (lambda (x)
597 (not (proper-list-of-length-p x 2)))
600 (error "ill-formed handler binding: ~S" (first member-if))))
601 (let* ((local-funs nil)
602 (mapped-bindings (mapcar (lambda (binding)
603 (destructuring-bind (type handler) binding
604 (let ((lambda-form handler))
605 (if (and (consp handler)
606 (or (eq 'lambda (car handler))
607 (and (eq 'function (car handler))
608 (consp (cdr handler))
609 (let ((x (second handler)))
612 (setf lambda-form x))))))
613 (let ((name (sb!xc:gensym "LAMBDA")))
614 (push `(,name ,@(cdr lambda-form)) local-funs)
615 (list type `(function ,name)))
618 `(dx-flet (,@(reverse local-funs))
619 (let ((*handler-clusters*
620 (cons (list ,@(mapcar (lambda (x) `(cons ',(car x) ,(cadr x)))
622 *handler-clusters*)))
623 #!+stack-allocatable-fixed-objects
624 (declare (truly-dynamic-extent *handler-clusters*))
627 (defmacro-mundanely handler-bind (bindings &body forms)
629 "(HANDLER-BIND ( {(type handler)}* ) body)
631 Executes body in a dynamic context where the given handler bindings are in
632 effect. Each handler must take the condition being signalled as an argument.
633 The bindings are searched first to last in the event of a signalled
635 `(%handler-bind ,bindings
636 #!-x86 (progn ,@forms)
637 ;; Need to catch FP errors here!
638 #!+x86 (multiple-value-prog1 (progn ,@forms) (float-wait))))
640 (defmacro-mundanely handler-case (form &rest cases)
641 "(HANDLER-CASE form { (type ([var]) body) }* )
643 Execute FORM in a context with handlers established for the condition types. A
644 peculiar property allows type to be :NO-ERROR. If such a clause occurs, and
645 form returns normally, all its values are passed to this clause as if by
646 MULTIPLE-VALUE-CALL. The :NO-ERROR clause accepts more than one var
648 (let ((no-error-clause (assoc ':no-error cases)))
650 (let ((normal-return (make-symbol "normal-return"))
651 (error-return (make-symbol "error-return")))
652 `(block ,error-return
653 (multiple-value-call (lambda ,@(cdr no-error-clause))
654 (block ,normal-return
655 (return-from ,error-return
656 (handler-case (return-from ,normal-return ,form)
657 ,@(remove no-error-clause cases)))))))
658 (let* ((local-funs nil)
660 (mapcar (lambda (case)
661 (with-unique-names (tag fun)
662 (destructuring-bind (type ll &body body) case
663 (push `(,fun ,ll ,@body) local-funs)
664 (list tag type ll fun))))
666 (with-unique-names (block cell form-fun)
667 `(dx-flet ((,form-fun ()
669 ;; Need to catch FP errors here!
670 #!+x86 (multiple-value-prog1 ,form (float-wait)))
671 ,@(reverse local-funs))
672 (declare (optimize (sb!c::check-tag-existence 0)))
674 ;; KLUDGE: We use a dx CONS cell instead of just assigning to
675 ;; the variable directly, so that we can stack allocate
676 ;; robustly: dx value cells don't work quite right, and it is
677 ;; possible to construct user code that should loop
678 ;; indefinitely, but instead eats up some stack each time
680 (dx-let ((,cell (cons :condition nil)))
681 (declare (ignorable ,cell))
684 ,(mapcar (lambda (annotated-case)
685 (destructuring-bind (tag type ll fun-name) annotated-case
686 (declare (ignore fun-name))
690 `(setf (cdr ,cell) temp)
691 '(declare (ignore temp)))
694 (return-from ,block (,form-fun)))
696 (lambda (annotated-case)
697 (destructuring-bind (tag type ll fun-name) annotated-case
698 (declare (ignore type))
702 `(,fun-name (cdr ,cell))
704 annotated-cases))))))))))
708 (defmacro-mundanely return (&optional (value nil))
709 `(return-from nil ,value))
711 (defmacro-mundanely psetq (&rest pairs)
714 Set the variables to the values, like SETQ, except that assignments
715 happen in parallel, i.e. no assignments take place until all the
716 forms have been evaluated."
717 ;; Given the possibility of symbol-macros, we delegate to PSETF
718 ;; which knows how to deal with them, after checking that syntax is
719 ;; compatible with PSETQ.
720 (do ((pair pairs (cddr pair)))
721 ((endp pair) `(psetf ,@pairs))
722 (unless (symbolp (car pair))
723 (error 'simple-program-error
724 :format-control "variable ~S in PSETQ is not a SYMBOL"
725 :format-arguments (list (car pair))))))
727 (defmacro-mundanely lambda (&whole whole args &body body)
728 (declare (ignore args body))
731 (defmacro-mundanely named-lambda (&whole whole name args &body body)
732 (declare (ignore name args body))
735 (defmacro-mundanely lambda-with-lexenv (&whole whole
736 declarations macros symbol-macros
738 (declare (ignore declarations macros symbol-macros body))
741 ;;; this eliminates a whole bundle of unknown function STYLE-WARNINGs
742 ;;; when cross-compiling. It's not critical for behaviour, but is
743 ;;; aesthetically pleasing, except inasmuch as there's this list of
744 ;;; magic functions here. -- CSR, 2003-04-01
746 (sb!xc:proclaim '(ftype (function * *)
747 ;; functions appearing in fundamental defining
756 sb!c::%define-symbol-macro
758 sb!c::%define-compiler-macro
760 sb!kernel::%compiler-defstruct
761 sb!kernel::%compiler-define-condition
762 sb!kernel::%defstruct
763 sb!kernel::%define-condition
764 ;; miscellaneous functions commonly appearing
765 ;; as a result of macro expansions or compiler
767 sb!int:find-undeleted-package-or-lose ; IN-PACKAGE
768 sb!kernel::arg-count-error ; PARSE-DEFMACRO