1 ;;;; This file defines all the standard functions to be known
2 ;;;; functions. Each function has type and side-effect information,
3 ;;;; and may also have IR1 optimizers.
5 ;;;; This software is part of the SBCL system. See the README file for
8 ;;;; This software is derived from the CMU CL system, which was
9 ;;;; written at Carnegie Mellon University and released into the
10 ;;;; public domain. The software is in the public domain and is
11 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
12 ;;;; files for more information.
16 ;;;; information for known functions:
18 (defknown coerce (t type-specifier) t
20 ;; This is not FLUSHABLE because it's defined to signal errors.
22 ;; :DERIVE-TYPE RESULT-TYPE-SPEC-NTH-ARG 2 ? Nope... (COERCE 1 'COMPLEX)
23 ;; returns REAL/INTEGER, not COMPLEX.
25 (defknown list-to-vector* (list type-specifier) vector)
26 (defknown vector-to-vector* (vector type-specifier) vector)
28 (defknown type-of (t) t (foldable flushable))
30 ;;; These can be affected by type definitions, so they're not FOLDABLE.
31 (defknown (sb!xc:upgraded-complex-part-type sb!xc:upgraded-array-element-type)
32 (type-specifier &optional lexenv-designator) type-specifier
35 ;;;; from the "Predicates" chapter:
37 ;;; FIXME: Is it right to have TYPEP (and TYPE-OF, elsewhere; and
38 ;;; perhaps SPECIAL-OPERATOR-P and others) be FOLDABLE in the
39 ;;; cross-compilation host? After all, some type relationships (e.g.
40 ;;; FIXNUMness) might be different between host and target. Perhaps
41 ;;; this property should be protected by #-SB-XC-HOST? Perhaps we need
42 ;;; 3-stage bootstrapping after all? (Ugh! It's *so* slow already!)
43 (defknown typep (t type-specifier &optional lexenv-designator) t
44 ;; Unlike SUBTYPEP or UPGRADED-ARRAY-ELEMENT-TYPE and friends, this
45 ;; seems to be FOLDABLE. Like SUBTYPEP, it's affected by type
46 ;; definitions, but unlike SUBTYPEP, there should be no way to make
47 ;; a TYPEP expression with constant arguments which doesn't return
48 ;; an error before the type declaration (because of undefined
49 ;; type). E.g. you can do
50 ;; (SUBTYPEP 'INTEGER 'FOO) => NIL, NIL
52 ;; (SUBTYPEP 'INTEGER 'FOO) => T, T
57 ;; doesn't work because the first call is an error.
59 ;; (UPGRADED-ARRAY-ELEMENT-TYPE and UPGRADED-COMPLEX-PART-TYPE have
60 ;; behavior like SUBTYPEP in this respect, not like TYPEP.)
62 (defknown subtypep (type-specifier type-specifier &optional lexenv-designator)
63 (values boolean boolean)
64 ;; This is not FOLDABLE because its value is affected by type
67 ;; FIXME: Is it OK to fold this when the types have already been
68 ;; defined? Does the code inherited from CMU CL already do this?
71 (defknown (null symbolp atom consp listp numberp integerp rationalp floatp
72 complexp characterp stringp bit-vector-p vectorp
73 simple-vector-p simple-string-p simple-bit-vector-p arrayp
74 sb!xc:packagep functionp compiled-function-p not)
75 (t) boolean (movable foldable flushable))
77 (defknown (eq eql) (t t) boolean (movable foldable flushable))
78 (defknown (equal equalp) (t t) boolean (foldable flushable recursive))
82 (sb!xc:deftype name-for-class () t)
83 (defknown classoid-name (classoid) name-for-class (flushable))
84 (defknown find-classoid (name-for-class &optional t lexenv-designator)
85 (or classoid null) ())
86 (defknown classoid-of (t) classoid (flushable))
87 (defknown layout-of (t) layout (flushable))
88 (defknown copy-structure (structure-object) structure-object
91 ;;;; from the "Control Structure" chapter:
93 ;;; This is not FLUSHABLE, since it's required to signal an error if
95 (defknown (symbol-value) (symbol) t ())
96 ;;; From CLHS, "If the symbol is globally defined as a macro or a
97 ;;; special operator, an object of implementation-dependent nature and
98 ;;; identity is returned. If the symbol is not globally defined as
99 ;;; either a macro or a special operator, and if the symbol is fbound,
100 ;;; a function object is returned". Our objects of
101 ;;; implementation-dependent nature happen to be functions.
102 (defknown (symbol-function) (symbol) function ())
104 (defknown boundp (symbol) boolean (flushable))
105 (defknown fboundp ((or symbol cons)) boolean (unsafely-flushable explicit-check))
106 (defknown special-operator-p (symbol) t
107 ;; The set of special operators never changes.
108 (movable foldable flushable))
109 (defknown set (symbol t) t (unsafe)
110 :derive-type #'result-type-last-arg)
111 (defknown fdefinition ((or symbol cons)) function (unsafe explicit-check))
112 (defknown %set-fdefinition ((or symbol cons) function) function
113 (unsafe explicit-check))
114 (defknown makunbound (symbol) symbol)
115 (defknown fmakunbound ((or symbol cons)) (or symbol cons)
116 (unsafe explicit-check))
117 (defknown (get-setf-method get-setf-method-multiple-value)
118 ((or list symbol) &optional lexenv-designator)
119 (values list list list form form)
121 (defknown apply (callable t &rest t) *) ; ### Last arg must be List...
122 (defknown funcall (callable &rest t) *)
124 (defknown (mapcar maplist) (callable list &rest list) list
127 ;;; According to CLHS the result must be a LIST, but we do not check
129 (defknown (mapcan mapcon) (callable list &rest list) t
132 (defknown (mapc mapl) (callable list &rest list) list (foldable call))
134 ;;; We let VALUES-LIST be foldable, since constant-folding will turn
135 ;;; it into VALUES. VALUES is not foldable, since MV constants are
136 ;;; represented by a call to VALUES.
137 (defknown values (&rest t) * (movable flushable unsafe))
138 (defknown values-list (list) * (movable foldable unsafely-flushable))
140 ;;;; from the "Macros" chapter:
142 (defknown macro-function (symbol &optional lexenv-designator)
145 (defknown (macroexpand macroexpand-1) (t &optional lexenv-designator)
146 (values form &optional boolean))
148 (defknown compiler-macro-function (t &optional lexenv-designator)
152 ;;;; from the "Declarations" chapter:
154 (defknown proclaim (list) (values) (recursive))
156 ;;;; from the "Symbols" chapter:
158 (defknown get (symbol t &optional t) t (flushable))
159 (defknown sb!impl::get2 (symbol t) t (flushable))
160 (defknown sb!impl::get3 (symbol t t) t (flushable))
161 (defknown remprop (symbol t) t)
162 (defknown symbol-plist (symbol) list (flushable))
163 (defknown getf (list t &optional t) t (foldable flushable))
164 (defknown get-properties (list list) (values t t list) (foldable flushable))
165 (defknown symbol-name (symbol) simple-string (movable foldable flushable))
166 (defknown make-symbol (string) symbol (flushable))
167 (defknown copy-symbol (symbol &optional t) symbol (flushable))
168 (defknown gensym (&optional (or string unsigned-byte)) symbol ())
169 (defknown symbol-package (symbol) (or sb!xc:package null) (flushable))
170 (defknown keywordp (t) boolean (flushable)) ; If someone uninterns it...
172 ;;;; from the "Packages" chapter:
174 (defknown gentemp (&optional string package-designator) symbol)
176 (defknown make-package (string-designator &key
180 (:internal-symbols index)
181 (:external-symbols index))
183 (defknown find-package (package-designator) (or sb!xc:package null)
185 (defknown package-name (package-designator) (or simple-string null)
186 (unsafely-flushable))
187 (defknown package-nicknames (package-designator) list (unsafely-flushable))
188 (defknown rename-package (package-designator package-designator &optional list)
190 (defknown package-use-list (package-designator) list (unsafely-flushable))
191 (defknown package-used-by-list (package-designator) list (unsafely-flushable))
192 (defknown package-shadowing-symbols (package-designator) list (unsafely-flushable))
193 (defknown list-all-packages () list (flushable))
194 (defknown intern (string &optional package-designator)
195 (values symbol (member :internal :external :inherited nil))
197 (defknown find-symbol (string &optional package-designator)
198 (values symbol (member :internal :external :inherited nil))
200 (defknown (export import) (symbols-designator &optional package-designator)
202 (defknown unintern (symbol &optional package-designator) boolean)
203 (defknown unexport (symbols-designator &optional package-designator) (eql t))
204 (defknown shadowing-import (symbols-designator &optional package-designator)
206 (defknown shadow ((or symbol string list) &optional package-designator)
208 (defknown (use-package unuse-package)
209 ((or list package-designator) &optional package-designator) (eql t))
210 (defknown find-all-symbols (string-designator) list (flushable))
212 ;;;; from the "Numbers" chapter:
214 (defknown zerop (number) boolean (movable foldable flushable explicit-check))
215 (defknown (plusp minusp) (real) boolean
216 (movable foldable flushable explicit-check))
217 (defknown (oddp evenp) (integer) boolean
218 (movable foldable flushable explicit-check))
219 (defknown (= /=) (number &rest number) boolean
220 (movable foldable flushable explicit-check))
221 (defknown (< > <= >=) (real &rest real) boolean
222 (movable foldable flushable explicit-check))
223 (defknown (max min) (real &rest real) real
224 (movable foldable flushable explicit-check))
226 (defknown + (&rest number) number
227 (movable foldable flushable explicit-check))
228 (defknown - (number &rest number) number
229 (movable foldable flushable explicit-check))
230 (defknown * (&rest number) number
231 (movable foldable flushable explicit-check))
232 (defknown / (number &rest number) number
233 (movable foldable flushable explicit-check))
234 (defknown (1+ 1-) (number) number
235 (movable foldable flushable explicit-check))
237 (defknown conjugate (number) number
238 (movable foldable flushable explicit-check))
240 (defknown gcd (&rest integer) unsigned-byte
241 (movable foldable flushable explicit-check)
242 #|:derive-type 'boolean-result-type|#)
243 (defknown lcm (&rest integer) unsigned-byte
244 (movable foldable flushable explicit-check))
246 #+sb-xc-host ; (See CROSS-FLOAT-INFINITY-KLUDGE.)
247 (defknown exp (number) irrational
248 (movable foldable flushable explicit-check recursive)
249 :derive-type #'result-type-float-contagion)
251 #-sb-xc-host ; (See CROSS-FLOAT-INFINITY-KLUDGE.)
252 (defknown exp (number) irrational
253 (movable foldable flushable explicit-check recursive))
255 (defknown expt (number number) number
256 (movable foldable flushable explicit-check recursive))
257 (defknown log (number &optional real) irrational
258 (movable foldable flushable explicit-check))
259 (defknown sqrt (number) irrational
260 (movable foldable flushable explicit-check))
261 (defknown isqrt (unsigned-byte) unsigned-byte
262 (movable foldable flushable explicit-check recursive))
264 (defknown (abs phase signum) (number) number
265 (movable foldable flushable explicit-check))
266 (defknown cis (real) (complex float)
267 (movable foldable flushable explicit-check))
269 #+sb-xc-host ; (See CROSS-FLOAT-INFINITY-KLUDGE.)
271 (defknown (sin cos) (number)
272 (or (float -1.0 1.0) (complex float))
273 (movable foldable flushable explicit-check recursive)
274 :derive-type #'result-type-float-contagion)
277 (number &optional real) irrational
278 (movable foldable unsafely-flushable explicit-check recursive)
279 :derive-type #'result-type-float-contagion)
281 (defknown (tan sinh cosh tanh asinh)
282 (number) irrational (movable foldable flushable explicit-check recursive)
283 :derive-type #'result-type-float-contagion)
286 #-sb-xc-host ; (See CROSS-FLOAT-INFINITY-KLUDGE.)
288 (defknown (sin cos) (number)
289 (or (float -1.0 1.0) (complex float))
290 (movable foldable flushable explicit-check recursive))
293 (number &optional real) irrational
294 (movable foldable unsafely-flushable explicit-check recursive))
296 (defknown (tan sinh cosh tanh asinh)
297 (number) irrational (movable foldable flushable explicit-check recursive))
300 (defknown (asin acos acosh atanh)
302 (movable foldable flushable explicit-check recursive))
304 (defknown float (real &optional float) float
305 (movable foldable flushable explicit-check))
307 (defknown (rational) (real) rational
308 (movable foldable flushable explicit-check))
310 (defknown (rationalize) (real) rational
311 (movable foldable flushable explicit-check recursive))
313 (defknown (numerator denominator) (rational) integer
314 (movable foldable flushable))
316 (defknown (floor ceiling truncate round)
317 (real &optional real) (values integer real)
318 (movable foldable flushable explicit-check))
320 (defknown (mod rem) (real real) real
321 (movable foldable flushable explicit-check))
323 (defknown (ffloor fceiling fround ftruncate)
324 (real &optional real) (values float real)
325 (movable foldable flushable explicit-check))
327 (defknown decode-float (float) (values float float-exponent float)
328 (movable foldable flushable explicit-check))
329 (defknown scale-float (float integer) float
330 (movable foldable unsafely-flushable explicit-check))
331 (defknown float-radix (float) float-radix
332 (movable foldable flushable))
333 (defknown float-sign (float &optional float) float
334 (movable foldable flushable explicit-check))
335 (defknown (float-digits float-precision) (float) float-digits
336 (movable foldable flushable explicit-check))
337 (defknown integer-decode-float (float)
338 (values integer float-int-exponent (member -1 1))
339 (movable foldable flushable explicit-check))
341 (defknown complex (real &optional real) number
342 (movable foldable flushable explicit-check))
344 (defknown (realpart imagpart) (number) real (movable foldable flushable))
346 (defknown (logior logxor logand logeqv) (&rest integer) integer
347 (movable foldable flushable explicit-check))
349 (defknown (lognand lognor logandc1 logandc2 logorc1 logorc2)
350 (integer integer) integer
351 (movable foldable flushable explicit-check))
353 (defknown boole (boole-code integer integer) integer
354 (movable foldable flushable))
356 (defknown lognot (integer) integer (movable foldable flushable explicit-check))
357 (defknown logtest (integer integer) boolean (movable foldable flushable))
358 (defknown logbitp (unsigned-byte integer) boolean (movable foldable flushable))
359 (defknown ash (integer integer) integer
360 (movable foldable flushable explicit-check))
361 (defknown (logcount integer-length) (integer) bit-index
362 (movable foldable flushable explicit-check))
363 ;;; FIXME: According to the ANSI spec, it's legal to use any
364 ;;; nonnegative indices for BYTE arguments, not just BIT-INDEX. It's
365 ;;; hard to come up with useful ways to do this, but it is possible to
366 ;;; come up with *legal* ways to do this, so it would be nice
367 ;;; to fix this so we comply with the spec.
368 (defknown byte (bit-index bit-index) byte-specifier
369 (movable foldable flushable))
370 (defknown (byte-size byte-position) (byte-specifier) bit-index
371 (movable foldable flushable))
372 (defknown ldb (byte-specifier integer) integer (movable foldable flushable))
373 (defknown ldb-test (byte-specifier integer) boolean
374 (movable foldable flushable))
375 (defknown mask-field (byte-specifier integer) integer
376 (movable foldable flushable))
377 (defknown dpb (integer byte-specifier integer) integer
378 (movable foldable flushable))
379 (defknown deposit-field (integer byte-specifier integer) integer
380 (movable foldable flushable))
381 (defknown random ((or (float (0.0)) (integer 1)) &optional random-state)
382 (or (float 0.0) (integer 0)) ())
383 (defknown make-random-state (&optional (or (member nil t) random-state))
384 random-state (flushable))
385 (defknown random-state-p (t) boolean (movable foldable flushable))
387 ;;;; from the "Characters" chapter:
388 (defknown (standard-char-p graphic-char-p alpha-char-p
389 upper-case-p lower-case-p both-case-p alphanumericp)
390 (character) boolean (movable foldable flushable))
392 (defknown digit-char-p (character &optional (integer 2 36))
393 (or (integer 0 35) null) (movable foldable flushable))
395 (defknown (char= char/= char< char> char<= char>= char-equal char-not-equal
396 char-lessp char-greaterp char-not-greaterp char-not-lessp)
397 (character &rest character) boolean (movable foldable flushable))
399 (defknown character (t) character (movable foldable unsafely-flushable))
400 (defknown char-code (character) char-code (movable foldable flushable))
401 (defknown (char-upcase char-downcase) (character) character
402 (movable foldable flushable))
403 (defknown digit-char (unsigned-byte &optional (integer 2 36))
404 (or character null) (movable foldable flushable))
405 (defknown char-int (character) char-code (movable foldable flushable))
406 (defknown char-name (character) (or simple-string null)
407 (movable foldable flushable))
408 (defknown name-char (string-designator) (or character null)
409 (movable foldable flushable))
410 (defknown code-char (char-code) character
411 ;; By suppressing constant folding on CODE-CHAR when the
412 ;; cross-compiler is running in the cross-compilation host vanilla
413 ;; ANSI Common Lisp, we can use CODE-CHAR expressions to delay until
414 ;; target Lisp run time the generation of CHARACTERs which aren't
415 ;; STANDARD-CHARACTERs. That way, we don't need to rely on the host
416 ;; Common Lisp being able to handle any characters other than those
417 ;; guaranteed by the ANSI spec.
418 (movable #-sb-xc-host foldable flushable))
420 ;;;; from the "Sequences" chapter:
422 (defknown elt (sequence index) t (foldable unsafely-flushable))
424 (defknown subseq (sequence index &optional sequence-end) consed-sequence
426 :derive-type (sequence-result-nth-arg 1))
428 (defknown copy-seq (sequence) consed-sequence (flushable)
429 :derive-type (sequence-result-nth-arg 1))
431 (defknown length (sequence) index (foldable flushable))
433 (defknown reverse (sequence) consed-sequence (flushable)
434 :derive-type (sequence-result-nth-arg 1))
436 (defknown nreverse (sequence) sequence (important-result)
437 :derive-type #'result-type-first-arg
438 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
440 (defknown make-sequence (type-specifier index
442 (:initial-element t))
445 :derive-type (creation-result-type-specifier-nth-arg 1))
447 (defknown concatenate (type-specifier &rest sequence) consed-sequence
449 :derive-type (creation-result-type-specifier-nth-arg 1))
451 (defknown (map %map) (type-specifier callable sequence &rest sequence)
454 ; :DERIVE-TYPE 'TYPE-SPEC-ARG1 ? Nope... (MAP NIL ...) returns NULL, not NIL.
456 (defknown %map-to-list-arity-1 (callable sequence) list (flushable call))
457 (defknown %map-to-simple-vector-arity-1 (callable sequence) simple-vector
459 (defknown %map-to-nil-on-simple-vector (callable simple-vector) null
461 (defknown %map-to-nil-on-vector (callable vector) null (flushable call))
462 (defknown %map-to-nil-on-sequence (callable sequence) null (flushable call))
464 (defknown map-into (sequence callable &rest sequence)
467 :derive-type #'result-type-first-arg
468 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
470 ;;; returns the result from the predicate...
471 (defknown some (callable sequence &rest sequence) t
472 (foldable unsafely-flushable call))
474 (defknown (every notany notevery) (callable sequence &rest sequence) boolean
475 (foldable unsafely-flushable call))
477 ;;; unsafe for :INITIAL-VALUE...
478 (defknown reduce (callable
487 (foldable flushable call unsafe))
489 (defknown fill (sequence t &key (:start index) (:end sequence-end)) sequence
491 :derive-type #'result-type-first-arg
492 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
494 (defknown replace (sequence
500 (:end2 sequence-end))
502 :derive-type #'result-type-first-arg
503 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
506 (t sequence &key (:from-end t) (:test callable)
507 (:test-not callable) (:start index) (:end sequence-end)
508 (:count sequence-count) (:key callable))
511 :derive-type (sequence-result-nth-arg 2))
514 (t t sequence &key (:from-end t) (:test callable)
515 (:test-not callable) (:start index) (:end sequence-end)
516 (:count sequence-count) (:key callable))
519 :derive-type (sequence-result-nth-arg 3))
521 (defknown (remove-if remove-if-not)
522 (callable sequence &key (:from-end t) (:start index) (:end sequence-end)
523 (:count sequence-count) (:key callable))
526 :derive-type (sequence-result-nth-arg 2))
528 (defknown (substitute-if substitute-if-not)
529 (t callable sequence &key (:from-end t) (:start index) (:end sequence-end)
530 (:count sequence-count) (:key callable))
533 :derive-type (sequence-result-nth-arg 3))
536 (t sequence &key (:from-end t) (:test callable)
537 (:test-not callable) (:start index) (:end sequence-end)
538 (:count sequence-count) (:key callable))
540 (flushable call important-result)
541 :derive-type (sequence-result-nth-arg 2)
542 :destroyed-constant-args (nth-constant-nonempty-sequence-args 2))
544 (defknown nsubstitute
545 (t t sequence &key (:from-end t) (:test callable)
546 (:test-not callable) (:start index) (:end sequence-end)
547 (:count sequence-count) (:key callable))
550 :derive-type (sequence-result-nth-arg 3)
551 :destroyed-constant-args (nth-constant-nonempty-sequence-args 3))
553 (defknown (delete-if delete-if-not)
554 (callable sequence &key (:from-end t) (:start index) (:end sequence-end)
555 (:count sequence-count) (:key callable))
557 (flushable call important-result)
558 :derive-type (sequence-result-nth-arg 2)
559 :destroyed-constant-args (nth-constant-nonempty-sequence-args 2))
561 (defknown (nsubstitute-if nsubstitute-if-not)
562 (t callable sequence &key (:from-end t) (:start index) (:end sequence-end)
563 (:count sequence-count) (:key callable))
566 :derive-type (sequence-result-nth-arg 3)
567 :destroyed-constant-args (nth-constant-nonempty-sequence-args 3))
569 (defknown remove-duplicates
570 (sequence &key (:test callable) (:test-not callable) (:start index)
571 (:from-end t) (:end sequence-end) (:key callable))
573 (unsafely-flushable call)
574 :derive-type (sequence-result-nth-arg 1))
576 (defknown delete-duplicates
577 (sequence &key (:test callable) (:test-not callable) (:start index)
578 (:from-end t) (:end sequence-end) (:key callable))
580 (unsafely-flushable call important-result)
581 :derive-type (sequence-result-nth-arg 1)
582 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
584 (defknown find (t sequence &key (:test callable) (:test-not callable)
585 (:start index) (:from-end t) (:end sequence-end)
588 (foldable flushable call))
590 (defknown (find-if find-if-not)
591 (callable sequence &key (:from-end t) (:start index) (:end sequence-end)
594 (foldable flushable call))
596 (defknown position (t sequence &key (:test callable) (:test-not callable)
597 (:start index) (:from-end t) (:end sequence-end)
600 (foldable flushable call))
602 (defknown (position-if position-if-not)
603 (callable sequence &key (:from-end t) (:start index) (:end sequence-end)
606 (foldable flushable call))
608 (defknown count (t sequence &key (:test callable) (:test-not callable)
609 (:start index) (:from-end t) (:end sequence-end)
612 (foldable flushable call))
614 (defknown (count-if count-if-not)
615 (callable sequence &key (:from-end t) (:start index) (:end sequence-end)
618 (foldable flushable call))
620 (defknown (mismatch search)
621 (sequence sequence &key (:from-end t) (:test callable) (:test-not callable)
622 (:start1 index) (:end1 sequence-end)
623 (:start2 index) (:end2 sequence-end)
626 (foldable flushable call))
628 ;;; not FLUSHABLE, since vector sort guaranteed in-place...
629 (defknown (stable-sort sort) (sequence callable &key (:key callable)) sequence
631 :derive-type (sequence-result-nth-arg 1)
632 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
633 (defknown sb!impl::stable-sort-list (list function function) list
634 (call important-result)
635 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
636 (defknown sb!impl::sort-vector (vector index index function (or function null))
637 * ; SORT-VECTOR works through side-effect
639 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
641 (defknown merge (type-specifier sequence sequence callable
642 &key (:key callable))
644 (call important-result)
645 :derive-type (creation-result-type-specifier-nth-arg 1)
646 :destroyed-constant-args (nth-constant-nonempty-sequence-args 2 3))
648 ;;; not FLUSHABLE, despite what CMU CL's DEFKNOWN said..
649 (defknown read-sequence (sequence stream
656 (defknown write-sequence (sequence stream
662 :derive-type (sequence-result-nth-arg 1))
664 ;;;; from the "Manipulating List Structure" chapter:
665 (defknown (car cdr first rest)
668 (foldable flushable))
670 ;; Correct argument type restrictions for these functions are
671 ;; complicated, so we just declare them to accept LISTs and suppress
672 ;; flushing is safe code.
673 (defknown (caar cadr cdar cddr
674 caaar caadr cadar caddr cdaar cdadr cddar cdddr
675 caaaar caaadr caadar caaddr cadaar cadadr caddar cadddr
676 cdaaar cdaadr cdadar cdaddr cddaar cddadr cdddar cddddr
677 second third fourth fifth sixth seventh eighth ninth tenth)
680 (foldable unsafely-flushable))
682 (defknown cons (t t) cons (movable flushable unsafe))
684 (defknown tree-equal (t t &key (:test callable) (:test-not callable)) boolean
685 (foldable flushable call))
686 (defknown endp (list) boolean (foldable flushable movable))
687 (defknown list-length (list) (or index null) (foldable unsafely-flushable))
688 (defknown nth (unsigned-byte list) t (foldable flushable))
689 (defknown nthcdr (unsigned-byte list) t (foldable unsafely-flushable))
690 (defknown last (list &optional unsigned-byte) t (foldable flushable))
691 (defknown sb!impl::last1 (list) t (foldable flushable))
692 (defknown list (&rest t) list (movable flushable unsafe))
693 (defknown list* (t &rest t) t (movable flushable unsafe))
694 (defknown make-list (index &key (:initial-element t)) list
695 (movable flushable unsafe))
697 ;;; All but last must be of type LIST, but there seems to be no way to
698 ;;; express that in this syntax.
699 (defknown append (&rest t) t (flushable))
701 (defknown copy-list (list) list (flushable))
702 (defknown copy-alist (list) list (flushable))
703 (defknown copy-tree (t) t (flushable recursive))
704 (defknown revappend (list t) t (flushable))
706 ;;; All but last must be of type LIST, but there seems to be no way to
707 ;;; express that in this syntax. The result must be LIST, but we do
708 ;;; not check it now :-).
709 (defknown nconc (&rest t) t ()
710 :destroyed-constant-args (remove-non-constants-and-nils #'butlast))
711 (defknown sb!impl::nconc2 (list t) t ()
712 :destroyed-constant-args (remove-non-constants-and-nils #'butlast))
714 (defknown nreconc (list t) t (important-result)
715 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
716 (defknown butlast (list &optional unsigned-byte) list (flushable))
717 (defknown nbutlast (list &optional unsigned-byte) list ()
718 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
720 (defknown ldiff (list t) list (flushable))
721 (defknown (rplaca rplacd) (cons t) list (unsafe)
722 :destroyed-constant-args (nth-constant-args 1))
724 (defknown subst (t t t &key (:key callable) (:test callable)
725 (:test-not callable))
726 t (flushable unsafe call))
727 (defknown nsubst (t t t &key (:key callable) (:test callable)
728 (:test-not callable))
730 :destroyed-constant-args (nth-constant-nonempty-sequence-args 3))
732 (defknown (subst-if subst-if-not)
733 (t callable t &key (:key callable))
734 t (flushable unsafe call))
735 (defknown (nsubst-if nsubst-if-not)
736 (t callable t &key (:key callable))
738 :destroyed-constant-args (nth-constant-nonempty-sequence-args 3))
740 (defknown sublis (list t &key (:key callable) (:test callable)
741 (:test-not callable))
742 t (flushable unsafe call))
743 (defknown nsublis (list t &key (:key callable) (:test callable)
744 (:test-not callable))
745 t (flushable unsafe call)
746 :destroyed-constant-args (nth-constant-nonempty-sequence-args 2))
748 (defknown member (t list &key (:key callable) (:test callable)
749 (:test-not callable))
750 list (foldable flushable call))
751 (defknown (member-if member-if-not) (callable list &key (:key callable))
752 list (foldable flushable call))
754 (defknown tailp (t list) boolean (foldable flushable))
756 (defknown adjoin (t list &key (:key callable) (:test callable)
757 (:test-not callable))
758 list (foldable flushable unsafe call))
760 (defknown (union intersection set-difference set-exclusive-or)
761 (list list &key (:key callable) (:test callable) (:test-not callable))
763 (foldable flushable call))
765 (defknown (nunion nintersection nset-difference nset-exclusive-or)
766 (list list &key (:key callable) (:test callable) (:test-not callable))
768 (foldable flushable call important-result)
769 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1 2))
772 (list list &key (:key callable) (:test callable) (:test-not callable))
774 (foldable flushable call))
776 (defknown acons (t t t) list (movable flushable unsafe))
777 (defknown pairlis (t t &optional t) list (flushable unsafe))
779 (defknown (rassoc assoc)
780 (t list &key (:key callable) (:test callable) (:test-not callable))
781 list (foldable flushable call))
782 (defknown (assoc-if-not assoc-if rassoc-if rassoc-if-not)
783 (callable list &key (:key callable)) list (foldable flushable call))
785 (defknown (memq assq) (t list) list (foldable flushable unsafe))
786 (defknown delq (t list) list (flushable unsafe)
787 :destroyed-constant-args (nth-constant-nonempty-sequence-args 2))
789 ;;;; from the "Hash Tables" chapter:
791 (defknown make-hash-table
792 (&key (:test callable) (:size unsigned-byte)
793 (:rehash-size (or (integer 1) (float (1.0))))
794 (:rehash-threshold (real 0 1))
798 (defknown hash-table-p (t) boolean (movable foldable flushable))
799 (defknown gethash (t hash-table &optional t) (values t boolean)
800 (flushable unsafe)) ; not FOLDABLE, since hash table contents can change
801 (defknown sb!impl::gethash2 (t hash-table) (values t boolean)
802 (flushable unsafe)) ; not FOLDABLE, since hash table contents can change
803 (defknown sb!impl::gethash3 (t hash-table t) (values t boolean)
804 (flushable unsafe)) ; not FOLDABLE, since hash table contents can change
805 (defknown %puthash (t hash-table t) t (unsafe)
806 :destroyed-constant-args (nth-constant-args 2))
807 (defknown remhash (t hash-table) boolean ()
808 :destroyed-constant-args (nth-constant-args 2))
809 (defknown maphash (callable hash-table) null (flushable call))
810 (defknown clrhash (hash-table) hash-table ()
811 :destroyed-constant-args (nth-constant-args 2))
812 (defknown hash-table-count (hash-table) index (flushable))
813 (defknown hash-table-rehash-size (hash-table) (or (integer 1) (float (1.0)))
814 (foldable flushable))
815 (defknown hash-table-rehash-threshold (hash-table) (real 0 1)
816 (foldable flushable))
817 (defknown hash-table-size (hash-table) index (flushable))
818 (defknown hash-table-test (hash-table) symbol (foldable flushable))
819 (defknown sxhash (t) (integer 0 #.sb!xc:most-positive-fixnum)
820 (#-sb-xc-host foldable flushable))
822 ;;;; from the "Arrays" chapter
824 (defknown make-array ((or index list)
826 (:element-type type-specifier)
828 (:initial-contents t)
831 (:displaced-to (or array null))
832 (:displaced-index-offset index))
833 array (flushable unsafe))
835 (defknown vector (&rest t) simple-vector (flushable unsafe))
837 (defknown aref (array &rest index) t (foldable))
838 (defknown row-major-aref (array index) t (foldable))
840 (defknown array-element-type (array)
842 (foldable flushable recursive))
843 (defknown array-rank (array) array-rank (foldable flushable))
844 (defknown array-dimension (array array-rank) index (foldable flushable))
845 (defknown array-dimensions (array) list (foldable flushable))
846 (defknown array-in-bounds-p (array &rest integer) boolean (foldable flushable))
847 (defknown array-row-major-index (array &rest index) array-total-size
848 (foldable flushable))
849 (defknown array-total-size (array) array-total-size (foldable flushable))
850 (defknown adjustable-array-p (array) boolean (movable foldable flushable))
852 (defknown svref (simple-vector index) t (foldable flushable))
853 (defknown bit ((array bit) &rest index) bit (foldable flushable))
854 (defknown sbit ((simple-array bit) &rest index) bit (foldable flushable))
856 ;;; FIXME: :DESTROYED-CONSTANT-ARGS for these is complicated.
857 (defknown (bit-and bit-ior bit-xor bit-eqv bit-nand bit-nor bit-andc1 bit-andc2
859 ((array bit) (array bit) &optional (or (array bit) (member t nil)))
862 #|:derive-type #'result-type-last-arg|#)
864 (defknown bit-not ((array bit) &optional (or (array bit) (member t nil)))
867 #|:derive-type #'result-type-last-arg|#)
869 (defknown bit-vector-= (bit-vector bit-vector) boolean
870 (movable foldable flushable))
872 (defknown array-has-fill-pointer-p (array) boolean
873 (movable foldable flushable))
874 (defknown fill-pointer (vector) index (foldable unsafely-flushable))
875 (defknown vector-push (t vector) (or index null) ()
876 :destroyed-constant-args (nth-constant-args 2))
877 (defknown vector-push-extend (t vector &optional index) index ()
878 :destroyed-constant-args (nth-constant-args 2))
879 (defknown vector-pop (vector) t ()
880 :destroyed-constant-args (nth-constant-args 1))
882 ;;; FIXME: complicated :DESTROYED-CONSTANT-ARGS
883 ;;; Also, an important-result warning could be provided if the array
884 ;;; is known to be not expressly adjustable.
885 (defknown adjust-array
886 (array (or index list) &key (:element-type type-specifier)
887 (:initial-element t) (:initial-contents t)
888 (:fill-pointer t) (:displaced-to (or array null))
889 (:displaced-index-offset index))
891 ; :derive-type 'result-type-arg1) Not even close...
893 ;;;; from the "Strings" chapter:
895 (defknown char (string index) character (foldable flushable))
896 (defknown schar (simple-string index) character (foldable flushable))
898 (defknown (string= string-equal)
899 (string-designator string-designator &key (:start1 index) (:end1 sequence-end)
900 (:start2 index) (:end2 sequence-end))
902 (foldable flushable))
904 (defknown (string< string> string<= string>= string/= string-lessp
905 string-greaterp string-not-lessp string-not-greaterp
907 (string-designator string-designator &key (:start1 index) (:end1 sequence-end)
908 (:start2 index) (:end2 sequence-end))
910 (foldable flushable))
912 (defknown make-string (index &key (:element-type type-specifier)
913 (:initial-element character))
914 simple-string (flushable))
916 (defknown (string-trim string-left-trim string-right-trim)
917 (sequence string-designator) simple-string (flushable))
919 (defknown (string-upcase string-downcase string-capitalize)
920 (string-designator &key (:start index) (:end sequence-end))
921 simple-string (flushable))
923 (defknown (nstring-upcase nstring-downcase nstring-capitalize)
924 (string &key (:start index) (:end sequence-end))
926 :destroyed-constant-args (nth-constant-nonempty-sequence-args 1))
928 (defknown string (string-designator) string
929 (flushable explicit-check))
931 ;;;; internal non-keyword versions of string predicates:
933 (defknown (string<* string>* string<=* string>=* string/=*)
934 (string-designator string-designator index sequence-end index sequence-end)
936 (foldable flushable))
939 (string-designator string-designator index sequence-end index sequence-end)
941 (foldable flushable))
943 ;;;; from the "Eval" chapter:
945 (defknown eval (t) * (recursive))
946 (defknown constantp (t &optional lexenv-designator) boolean
947 (foldable flushable))
949 ;;;; from the "Streams" chapter:
951 (defknown make-synonym-stream (symbol) stream (flushable))
952 (defknown make-broadcast-stream (&rest stream) stream (unsafely-flushable))
953 (defknown make-concatenated-stream (&rest stream) stream (unsafely-flushable))
954 (defknown make-two-way-stream (stream stream) stream (unsafely-flushable))
955 (defknown make-echo-stream (stream stream) stream (flushable))
956 (defknown make-string-input-stream (string &optional index sequence-end)
959 (defknown make-string-output-stream
960 (&key (:element-type type-specifier))
963 (defknown get-output-stream-string (stream) simple-string ())
964 (defknown streamp (t) boolean (movable foldable flushable))
965 (defknown stream-element-type (stream) type-specifier
966 (movable foldable flushable))
967 (defknown (output-stream-p input-stream-p) (stream) boolean
968 (movable foldable flushable))
969 (defknown close (stream &key (:abort t)) (eql t) ())
971 ;;;; from the "Input/Output" chapter:
973 ;;; (The I/O functions are given effects ANY under the theory that
974 ;;; code motion over I/O operations is particularly confusing and not
975 ;;; very important for efficiency.)
977 (defknown copy-readtable (&optional (or readtable null) (or readtable null))
980 (defknown readtablep (t) boolean (movable foldable flushable))
982 (defknown set-syntax-from-char
983 (character character &optional (or readtable null) readtable) (eql t)
986 (defknown set-macro-character (character callable &optional t readtable)
989 (defknown get-macro-character (character &optional (or readtable null))
990 (values callable boolean) (flushable))
992 (defknown make-dispatch-macro-character (character &optional t readtable)
994 (defknown set-dispatch-macro-character
995 (character character callable &optional readtable) function
997 (defknown get-dispatch-macro-character
998 (character character &optional (or readtable null)) (or callable null)
1001 (defknown copy-pprint-dispatch
1002 (&optional (or sb!pretty:pprint-dispatch-table null))
1003 sb!pretty:pprint-dispatch-table
1005 (defknown pprint-dispatch
1006 (t &optional (or sb!pretty:pprint-dispatch-table null))
1007 (values callable boolean)
1009 (defknown (pprint-fill pprint-linear)
1010 (stream-designator t &optional t t)
1013 (defknown pprint-tabular
1014 (stream-designator t &optional t t unsigned-byte)
1017 (defknown pprint-indent
1018 ((member :block :current) real &optional stream-designator)
1021 (defknown pprint-newline
1022 ((member :linear :fill :miser :mandatory) &optional stream-designator)
1025 (defknown pprint-tab
1026 ((member :line :section :line-relative :section-relative)
1027 unsigned-byte unsigned-byte &optional stream-designator)
1030 (defknown set-pprint-dispatch
1031 (type-specifier (or null callable)
1032 &optional real sb!pretty:pprint-dispatch-table)
1036 ;;; may return any type due to eof-value...
1037 (defknown (read read-preserving-whitespace read-char-no-hang read-char)
1038 (&optional stream-designator t t t) t (explicit-check))
1040 (defknown read-delimited-list (character &optional stream-designator t) list
1042 (defknown read-line (&optional stream-designator t t t) (values t boolean)
1044 (defknown unread-char (character &optional stream-designator) t
1046 (defknown peek-char (&optional (or character (member nil t))
1047 stream-designator t t t)
1050 (defknown listen (&optional stream-designator) boolean (flushable explicit-check))
1052 (defknown clear-input (&optional stream-designator) null (explicit-check))
1054 (defknown read-from-string
1055 (string &optional t t
1059 (:preserve-whitespace t))
1061 (defknown parse-integer
1065 (:radix (integer 2 36))
1067 (values (or integer null ()) index))
1069 (defknown read-byte (stream &optional t t) t (explicit-check))
1073 (:stream stream-designator)
1076 (:base (integer 2 36))
1079 (:level (or unsigned-byte null))
1081 (:length (or unsigned-byte null))
1085 (:lines (or unsigned-byte null))
1086 (:right-margin (or unsigned-byte null))
1087 (:miser-width (or unsigned-byte null))
1088 (:pprint-dispatch t))
1090 (any explicit-check)
1091 :derive-type #'result-type-first-arg)
1093 (defknown (prin1 print princ) (t &optional stream-designator)
1095 (any explicit-check)
1096 :derive-type #'result-type-first-arg)
1098 ;;; xxx-TO-STRING functions are not foldable because they depend on
1099 ;;; the dynamic environment, the state of the pretty printer dispatch
1100 ;;; table, and probably other run-time factors.
1101 (defknown write-to-string
1102 (t &key (:escape t) (:radix t) (:base (integer 2 36)) (:readably t)
1103 (:circle t) (:pretty t) (:level (or unsigned-byte null))
1104 (:length (or unsigned-byte null)) (:case t) (:array t) (:gensym t)
1105 (:lines (or unsigned-byte null)) (:right-margin (or unsigned-byte null))
1106 (:miser-width (or unsigned-byte null)) (:pprint-dispatch t))
1108 (flushable explicit-check))
1110 (defknown (prin1-to-string princ-to-string) (t) simple-string (flushable))
1112 (defknown write-char (character &optional stream-designator) character
1114 (defknown (write-string write-line)
1115 (string &optional stream-designator &key (:start index) (:end sequence-end))
1119 (defknown (terpri finish-output force-output clear-output)
1120 (&optional stream-designator) null
1123 (defknown fresh-line (&optional stream-designator) boolean
1126 (defknown write-byte (integer stream) integer
1129 ;;; FIXME: complicated :DESTROYED-CONSTANT-ARGS
1130 (defknown format ((or (member nil t) stream string)
1131 (or string function) &rest t)
1135 (defknown (y-or-n-p yes-or-no-p) (&optional string &rest t) boolean
1138 ;;;; from the "File System Interface" chapter:
1140 ;;; (No pathname functions are FOLDABLE because they all potentially
1141 ;;; depend on *DEFAULT-PATHNAME-DEFAULTS*, e.g. to provide a default
1142 ;;; host when parsing a namestring. They are not FLUSHABLE because
1143 ;;; parsing of a PATHNAME-DESIGNATOR might signal an error.)
1145 (defknown wild-pathname-p (pathname-designator
1147 (member nil :host :device
1152 (defknown pathname-match-p (pathname-designator pathname-designator)
1155 (defknown translate-pathname (pathname-designator
1157 pathname-designator &key)
1161 (defknown logical-pathname (pathname-designator) logical-pathname ())
1162 (defknown translate-logical-pathname (pathname-designator &key) pathname
1164 (defknown load-logical-pathname-translations (string) t ())
1165 (defknown logical-pathname-translations (logical-host-designator) list ())
1167 (defknown pathname (pathname-designator) pathname (unsafely-flushable))
1168 (defknown truename (pathname-designator) pathname ())
1170 (defknown parse-namestring
1171 (pathname-designator &optional
1172 (or list host string (member :unspecific))
1178 (values (or pathname null) sequence-end)
1181 (defknown merge-pathnames
1182 (pathname-designator &optional pathname-designator pathname-version)
1184 (unsafely-flushable))
1186 (defknown make-pathname
1187 (&key (:defaults pathname-designator)
1188 (:host (or string pathname-host))
1189 (:device (or string pathname-device))
1190 (:directory (or pathname-directory string (member :wild)))
1191 (:name (or pathname-name string (member :wild)))
1192 (:type (or pathname-type string (member :wild)))
1193 (:version pathname-version) (:case (member :local :common)))
1194 pathname (unsafely-flushable))
1196 (defknown pathnamep (t) boolean (movable flushable))
1198 (defknown pathname-host (pathname-designator
1199 &key (:case (member :local :common)))
1200 pathname-host (flushable))
1201 (defknown pathname-device (pathname-designator
1202 &key (:case (member :local :common)))
1203 pathname-device (flushable))
1204 (defknown pathname-directory (pathname-designator
1205 &key (:case (member :local :common)))
1206 pathname-directory (flushable))
1207 (defknown pathname-name (pathname-designator
1208 &key (:case (member :local :common)))
1209 pathname-name (flushable))
1210 (defknown pathname-type (pathname-designator
1211 &key (:case (member :local :common)))
1212 pathname-type (flushable))
1213 (defknown pathname-version (pathname-designator)
1214 pathname-version (flushable))
1216 (defknown (namestring file-namestring directory-namestring host-namestring)
1217 (pathname-designator) (or simple-string null)
1218 (unsafely-flushable))
1220 (defknown enough-namestring (pathname-designator &optional pathname-designator)
1222 (unsafely-flushable))
1224 (defknown user-homedir-pathname (&optional t) pathname (flushable))
1227 (pathname-designator &key
1228 (:direction (member :input :output :io :probe))
1229 (:element-type type-specifier)
1230 (:if-exists (member :error :new-version :rename
1231 :rename-and-delete :overwrite
1232 :append :supersede nil))
1233 (:if-does-not-exist (member :error :create nil))
1234 (:external-format keyword))
1237 (defknown rename-file (pathname-designator filename)
1238 (values pathname pathname pathname))
1239 (defknown delete-file (pathname-designator) t)
1240 (defknown probe-file (pathname-designator) (or pathname null) ())
1241 (defknown file-write-date (pathname-designator) (or unsigned-byte null)
1243 (defknown file-author (pathname-designator) (or simple-string null)
1246 (defknown file-position (stream &optional
1247 (or unsigned-byte (member :start :end)))
1248 (or unsigned-byte (member t nil)))
1249 (defknown file-length (stream) (or unsigned-byte null) (unsafely-flushable))
1252 ((or filename stream)
1256 (:if-does-not-exist (member :error :create nil))
1257 (:external-format keyword))
1260 (defknown directory (pathname-designator &key)
1263 ;;;; from the "Conditions" chapter:
1265 (defknown cell-error-name (cell-error) t)
1266 (defknown error (t &rest t) nil)
1267 (defknown cerror (format-control t &rest t) null)
1268 (defknown invalid-method-error (t format-control &rest t) *) ; FIXME: first arg is METHOD
1269 (defknown method-combination-error (format-control &rest t) *)
1270 (defknown signal (t &rest t) null)
1271 (defknown simple-condition-format-control (condition)
1273 (defknown simple-condition-format-arguments (condition)
1275 (defknown warn (t &rest t) null)
1276 (defknown invoke-debugger (condition) nil)
1277 (defknown break (&optional format-control &rest t) null)
1278 (defknown make-condition (type-specifier &rest t) condition)
1279 (defknown compute-restarts (&optional (or condition null)) list)
1280 (defknown find-restart (restart-designator &optional (or condition null))
1282 (defknown invoke-restart (restart-designator &rest t) *)
1283 (defknown invoke-restart-interactively (restart-designator) *)
1284 (defknown restart-name (restart) symbol)
1285 (defknown (abort muffle-warning) (&optional (or condition null)) nil)
1286 (defknown continue (&optional (or condition null)) null)
1287 (defknown (store-value use-value) (t &optional (or condition null))
1290 ;;; and analogous SBCL extension:
1291 (defknown bug (t &rest t) nil) ; never returns
1293 ;;;; from the "Miscellaneous" Chapter:
1295 (defknown compile ((or symbol cons) &optional (or list function null))
1296 (values (or function symbol cons) boolean boolean))
1298 (defknown compile-file
1299 (pathname-designator
1303 (:output-file (or pathname-designator
1305 ;; FIXME: This last case is a non-ANSI hack.
1309 (:external-format keyword)
1314 (values (or pathname null) boolean boolean))
1316 ;; FIXME: consider making (OR CALLABLE CONS) something like
1317 ;; EXTENDED-FUNCTION-DESIGNATOR
1318 (defknown disassemble ((or callable cons) &key
1319 (:stream stream) (:use-labels t))
1322 (defknown fdocumentation (t symbol)
1326 (defknown describe (t &optional (or stream (member t nil))) (values))
1327 (defknown inspect (t) (values))
1328 (defknown room (&optional (member t nil :default)) (values))
1329 (defknown ed (&optional (or symbol cons filename))
1331 (defknown dribble (&optional filename &key (:if-exists t)) (values))
1333 (defknown apropos (string-designator &optional package-designator t) (values))
1334 (defknown apropos-list (string-designator &optional package-designator t) list
1337 (defknown get-decoded-time ()
1338 (values (integer 0 59) (integer 0 59) (integer 0 23) (integer 1 31)
1339 (integer 1 12) unsigned-byte (integer 0 6) boolean (rational -24 24))
1342 (defknown get-universal-time () unsigned-byte (flushable))
1344 (defknown decode-universal-time
1345 (unsigned-byte &optional (or null (rational -24 24)))
1346 (values (integer 0 59) (integer 0 59) (integer 0 23) (integer 1 31)
1347 (integer 1 12) unsigned-byte (integer 0 6) boolean (rational -24 24))
1350 (defknown encode-universal-time
1351 ((integer 0 59) (integer 0 59) (integer 0 23) (integer 1 31)
1352 (integer 1 12) unsigned-byte &optional (or null (rational -24 24)))
1356 (defknown (get-internal-run-time get-internal-real-time)
1357 () internal-time (flushable))
1359 (defknown sleep ((or (rational 0) (float 0.0))) null)
1361 ;;; Even though ANSI defines LISP-IMPLEMENTATION-TYPE and
1362 ;;; LISP-IMPLEMENTATION-VERSION to possibly punt and return NIL, we
1363 ;;; know that there's no valid reason for our implementations to ever
1364 ;;; do so, so we can safely guarantee that they'll return strings.
1365 (defknown (lisp-implementation-type lisp-implementation-version)
1366 () simple-string (flushable))
1368 ;;; For any of these functions, meaningful information might not be
1369 ;;; available, so -- unlike the related LISP-IMPLEMENTATION-FOO
1370 ;;; functions -- these really can return NIL.
1371 (defknown (machine-type machine-version machine-instance
1372 software-type software-version
1373 short-site-name long-site-name)
1374 () (or simple-string null) (flushable))
1376 (defknown identity (t) t (movable foldable flushable unsafe)
1377 :derive-type #'result-type-first-arg)
1379 (defknown constantly (t) function (movable flushable))
1380 (defknown complement (function) function (movable flushable))
1382 ;;;; miscellaneous extensions
1384 (defknown get-bytes-consed () unsigned-byte (flushable))
1385 (defknown mask-signed-field ((integer 0 *) integer) integer
1386 (movable flushable foldable))
1389 (defknown incf-pcounter (pcounter unsigned-byte) pcounter)
1390 (defknown pcounter->integer (pcounter) unsigned-byte)
1391 (defknown %incf-pcounter-or-fixnum ((or pcounter fixnum) unsigned-byte)
1392 (or pcounter fixnum))
1393 (defknown pcounter-or-fixnum->integer ((or pcounter fixnum)) unsigned-byte)
1395 ;;;; magical compiler frobs
1397 ;;; We can't fold this in general because of SATISFIES. There is a
1398 ;;; special optimizer anyway.
1399 (defknown %typep (t (or type-specifier ctype)) boolean
1400 (movable flushable explicit-check))
1401 (defknown %instance-typep (t (or type-specifier ctype)) boolean
1402 (movable flushable explicit-check))
1404 (defknown %cleanup-point () t)
1405 (defknown %special-bind (t t) t)
1406 (defknown %special-unbind (t) t)
1407 (defknown %listify-rest-args (t index) list (flushable))
1408 (defknown %more-arg-context (t t) (values t index) (flushable))
1409 (defknown %more-arg (t index) t)
1410 (defknown %more-arg-values (t index index) * (flushable))
1411 (defknown %verify-arg-count (index index) (values))
1412 (defknown %arg-count-error (t) nil)
1413 (defknown %unknown-values () *)
1414 (defknown %catch (t t) t)
1415 (defknown %unwind-protect (t t) t)
1416 (defknown (%catch-breakup %unwind-protect-breakup) () t)
1417 (defknown %lexical-exit-breakup (t) t)
1418 (defknown %continue-unwind (t t t) nil)
1419 (defknown %throw (t &rest t) nil) ; This is MV-called.
1420 (defknown %nlx-entry (t) *)
1421 (defknown %%primitive (t t &rest t) *)
1422 (defknown %pop-values (t) t)
1423 (defknown %nip-values (t t &rest t) (values))
1424 (defknown %allocate-closures (t) *)
1425 (defknown %type-check-error (t t) nil)
1427 ;; FIXME: This function does not return, but due to the implementation
1428 ;; of FILTER-LVAR we cannot write it here.
1429 (defknown %compile-time-type-error (t t t) *)
1431 (defknown %odd-key-args-error () nil)
1432 (defknown %unknown-key-arg-error (t) nil)
1433 (defknown (%ldb %mask-field) (bit-index bit-index integer) unsigned-byte
1434 (movable foldable flushable explicit-check))
1435 (defknown (%dpb %deposit-field) (integer bit-index bit-index integer) integer
1436 (movable foldable flushable explicit-check))
1437 (defknown %negate (number) number (movable foldable flushable explicit-check))
1438 (defknown %check-bound (array index fixnum) index (movable foldable flushable))
1439 (defknown data-vector-ref (simple-array index) t
1440 (foldable explicit-check))
1441 (defknown data-vector-set (array index t) t (unsafe explicit-check))
1442 (defknown hairy-data-vector-ref (array index) t
1443 (foldable explicit-check))
1444 (defknown hairy-data-vector-set (array index t) t (unsafe explicit-check))
1445 (defknown %caller-frame-and-pc () (values t t) (flushable))
1446 (defknown %with-array-data (array index (or index null))
1447 (values (simple-array * (*)) index index index)
1448 (foldable flushable))
1449 (defknown %set-symbol-package (symbol t) t (unsafe))
1450 (defknown %coerce-name-to-fun ((or symbol cons)) function (flushable))
1451 (defknown %coerce-callable-to-fun (callable) function (flushable))
1452 (defknown failed-%with-array-data (t t t) nil)
1453 (defknown %find-position
1454 (t sequence t index sequence-end function function)
1455 (values t (or index null))
1457 (defknown (%find-position-if %find-position-if-not)
1458 (function sequence t index sequence-end function)
1459 (values t (or index null))
1461 (defknown effective-find-position-test (callable callable)
1463 (flushable foldable))
1464 (defknown effective-find-position-key (callable)
1466 (flushable foldable))
1468 (defknown %check-vector-sequence-bounds (vector index sequence-end)
1471 ;;; FIXME: including this information here is probably necessary to
1472 ;;; get efficient compilation of the inline expansion of
1473 ;;; %FIND-POSITION-IF, so it should maybe be in a more
1474 ;;; compiler-friendly package (SB-INT?)
1475 (defknown sb!impl::signal-bounding-indices-bad-error
1476 (sequence index sequence-end)
1477 nil) ; never returns
1480 (defknown arg-count-error (t t t t t t) nil (unsafe))
1484 (defknown %aset (array &rest t) t (unsafe)
1485 :destroyed-constant-args (nth-constant-args 1))
1486 (defknown %set-row-major-aref (array index t) t (unsafe)
1487 :destroyed-constant-args (nth-constant-args 1))
1488 (defknown (%rplaca %rplacd) (cons t) t (unsafe)
1489 :destroyed-constant-args (nth-constant-args 1))
1490 (defknown %put (symbol t t) t (unsafe))
1491 (defknown %setelt (sequence index t) t (unsafe)
1492 :destroyed-constant-args (nth-constant-args 1))
1493 (defknown %svset (simple-vector index t) t (unsafe)
1494 :destroyed-constant-args (nth-constant-args 1))
1495 (defknown %bitset ((array bit) &rest index) bit (unsafe)
1496 :destroyed-constant-args (nth-constant-args 1))
1497 (defknown %sbitset ((simple-array bit) &rest index) bit (unsafe)
1498 :destroyed-constant-args (nth-constant-args 1))
1499 (defknown %charset (string index character) character (unsafe)
1500 :destroyed-constant-args (nth-constant-args 1))
1501 (defknown %scharset (simple-string index character) character (unsafe)
1502 :destroyed-constant-args (nth-constant-args 1))
1503 (defknown %set-symbol-value (symbol t) t (unsafe))
1504 (defknown (setf symbol-function) (function symbol) function (unsafe))
1505 (defknown %set-symbol-plist (symbol t) t (unsafe))
1506 (defknown (setf fdocumentation) ((or string null) t symbol)
1509 (defknown %setnth (unsigned-byte list t) t (unsafe)
1510 :destroyed-constant-args (nth-constant-args 2))
1511 (defknown %set-fill-pointer (vector index) index (unsafe)
1512 :destroyed-constant-args (nth-constant-args 1))
1514 ;;;; ALIEN and call-out-to-C stuff
1516 ;;; 'unsafe' attribute because we store the arg on the stack, which is in
1517 ;;; some sense 'passing it upwards'
1518 (defknown sb!vm::push-word-on-c-stack (system-area-pointer) (values) (unsafe))
1519 (defknown sb!vm::pop-words-from-c-stack (index) (values) ())
1522 (defknown foreign-symbol-dataref-sap (simple-string)
1524 (movable flushable))
1526 (defknown foreign-symbol-sap (simple-string &optional boolean)
1528 (movable flushable))
1530 (defknown foreign-symbol-address (simple-string &optional boolean)
1531 (values integer boolean)
1532 (movable flushable))
1534 ;;;; miscellaneous internal utilities
1536 (defknown %fun-name (function) t (flushable))
1537 (defknown (setf %fun-name) (t function) t (unsafe))
1539 (defknown policy-quality (policy symbol) policy-quality
1542 (defknown (compiler-abort compiler-error) (string &rest t) nil ())
1543 (defknown (compiler-warn compiler-style-warn) (string &rest t) (values) ())
1544 (defknown (compiler-notify maybe-compiler-notify) ((or string symbol) &rest t)
1547 (defknown style-warn (string &rest t) null ())