;; true if other &KEY arguments are allowed
(allowp nil :type boolean))
-(defun canonicalize-args-type-args (required optional rest)
+(defun canonicalize-args-type-args (required optional rest &optional keyp)
(when (eq rest *empty-type*)
;; or vice-versa?
(setq rest nil))
for opt in optional
do (cond ((eq opt *empty-type*)
(return (values required (subseq optional i) rest)))
- ((neq opt rest)
+ ((and (not keyp) (neq opt rest))
(setq last-not-rest i)))
finally (return (values required
- (if last-not-rest
- (subseq optional 0 (1+ last-not-rest))
- nil)
+ (cond (keyp
+ optional)
+ (last-not-rest
+ (subseq optional 0 (1+ last-not-rest))))
rest))))
-(defun args-types (lambda-list-like-thing)
+(defun parse-args-types (lambda-list-like-thing)
(multiple-value-bind
(required optional restp rest keyp keys allowp auxp aux
morep more-context more-count llk-p)
- (parse-lambda-list-like-thing lambda-list-like-thing)
+ (parse-lambda-list-like-thing lambda-list-like-thing :silent t)
(declare (ignore aux morep more-context more-count))
(when auxp
(error "&AUX in a FUNCTION or VALUES type: ~S." lambda-list-like-thing))
:type (single-value-specifier-type (second key))))))
(key-info))))
(multiple-value-bind (required optional rest)
- (canonicalize-args-type-args required optional rest)
+ (canonicalize-args-type-args required optional rest keyp)
(values required optional rest keyp keywords allowp llk-p)))))
(defstruct (values-type
:rest rest
:allowp allowp))
-(defun make-values-type (&key (args nil argsp)
- required optional rest allowp)
- (if argsp
- (if (eq args '*)
- *wild-type*
- (multiple-value-bind (required optional rest keyp keywords allowp
- llk-p)
- (args-types args)
- (declare (ignore keywords))
- (when keyp
- (error "&KEY appeared in a VALUES type specifier ~S."
- `(values ,@args)))
- (if llk-p
- (make-values-type :required required
- :optional optional
- :rest rest
- :allowp allowp)
- (make-short-values-type required))))
- (multiple-value-bind (required optional rest)
- (canonicalize-args-type-args required optional rest)
- (cond ((and (null required)
- (null optional)
- (eq rest *universal-type*))
- *wild-type*)
- ((memq *empty-type* required)
- *empty-type*)
- (t (make-values-type-cached required optional
- rest allowp))))))
+(defun make-values-type (&key required optional rest allowp)
+ (multiple-value-bind (required optional rest)
+ (canonicalize-args-type-args required optional rest)
+ (cond ((and (null required)
+ (null optional)
+ (eq rest *universal-type*))
+ *wild-type*)
+ ((memq *empty-type* required)
+ *empty-type*)
+ (t (make-values-type-cached required optional
+ rest allowp)))))
(!define-type-class values)
(defstruct (fun-type (:include args-type
(class-info (type-class-or-lose 'function)))
(:constructor
- %make-fun-type (&key required optional rest
- keyp keywords allowp
- wild-args
- returns
- &aux (rest (if (eq rest *empty-type*)
- nil
- rest)))))
+ make-fun-type (&key required optional rest
+ keyp keywords allowp
+ wild-args
+ returns
+ &aux (rest (if (eq rest *empty-type*)
+ nil
+ rest)))))
;; true if the arguments are unrestrictive, i.e. *
(wild-args nil :type boolean)
;; type describing the return values. This is a values type
;; when multiple values were specified for the return.
(returns (missing-arg) :type ctype))
-(defun make-fun-type (&rest initargs
- &key (args nil argsp) returns &allow-other-keys)
- (if argsp
- (if (eq args '*)
- (if (eq returns *wild-type*)
- (specifier-type 'function)
- (%make-fun-type :wild-args t :returns returns))
- (multiple-value-bind (required optional rest keyp keywords allowp)
- (args-types args)
- (if (and (null required)
- (null optional)
- (eq rest *universal-type*)
- (not keyp))
- (if (eq returns *wild-type*)
- (specifier-type 'function)
- (%make-fun-type :wild-args t :returns returns))
- (%make-fun-type :required required
- :optional optional
- :rest rest
- :keyp keyp
- :keywords keywords
- :allowp allowp
- :returns returns))))
- ;; FIXME: are we really sure that we won't make something that
- ;; looks like a completely wild function here?
- (apply #'%make-fun-type initargs)))
;;; The CONSTANT-TYPE structure represents a use of the CONSTANT-ARG
;;; "type specifier", which is only meaningful in function argument
(class-info (type-class-or-lose 'member))
(enumerable t))
(:copier nil)
- (:constructor %make-member-type (members))
+ (:constructor %make-member-type (xset fp-zeroes))
#-sb-xc-host (:pure nil))
- ;; the things in the set, with no duplications
- (members nil :type list))
-(defun make-member-type (&key members)
- (declare (type list members))
+ (xset (missing-arg) :type xset)
+ (fp-zeroes (missing-arg) :type list))
+(defun make-member-type (&key xset fp-zeroes members)
+ (unless xset
+ (aver (not fp-zeroes))
+ (setf xset (alloc-xset))
+ (dolist (elt members)
+ (if (fp-zero-p elt)
+ (pushnew elt fp-zeroes)
+ (add-to-xset elt xset))))
;; if we have a pair of zeros (e.g. 0.0d0 and -0.0d0), then we can
;; canonicalize to (DOUBLE-FLOAT 0.0d0 0.0d0), because numeric
;; ranges are compared by arithmetic operators (while MEMBERship is
;; compared by EQL). -- CSR, 2003-04-23
- (let ((n-single (load-time-value
- (make-unportable-float :single-float-negative-zero)))
- (n-double (load-time-value
- (make-unportable-float :double-float-negative-zero)))
- #!+long-float
- (n-long (load-time-value
- (make-unportable-float :long-float-negative-zero)))
- (singles nil)
- (doubles nil)
- #!+long-float
- (longs nil))
- ;; Just a single traversal, please! MEMBERS2 starts as with MEMBERS,
- ;; sans any zeroes -- if there are any paired zeroes then the
- ;; unpaired ones are added back to it.
- (let (members2)
- (dolist (elt members)
- (if (and (numberp elt) (zerop elt))
- (typecase elt
- (single-float (push elt singles))
- (double-float (push elt doubles))
- #!+long-float
- (long-float (push elt longs)))
- (push elt members2)))
- (let ((singlep (and (member 0.0f0 singles)
- (member n-single singles)
- (or (aver (= 2 (length singles))) t)))
- (doublep (and (member 0.0d0 doubles)
- (member n-double doubles)
- (or (aver (= 2 (length doubles))) t)))
- #!+long-float
- (longp (and (member 0.0l0 longs)
- (member n-long longs)
- (or (aver (= 2 (lenght longs))) t))))
- (if (or singlep doublep #!+long-float longp)
- (let (union-types)
- (if singlep
- (push (ctype-of 0.0f0) union-types)
- (setf members2 (nconc singles members2)))
- (if doublep
- (push (ctype-of 0.0d0) union-types)
- (setf members2 (nconc doubles members2)))
- #!+long-float
- (if longp
- (push (ctype-of 0.0l0) union-types)
- (setf members2 (nconc longs members2)))
- (aver (not (null union-types)))
- (make-union-type t
- (if (null members2)
- union-types
- (cons (%make-member-type members2)
- union-types))))
- (%make-member-type members))))))
+ (let ((unpaired nil)
+ (union-types nil))
+ (do ((tail (cdr fp-zeroes) (cdr tail))
+ (zero (car fp-zeroes) (car tail)))
+ ((not zero))
+ (macrolet ((frob (c)
+ `(let ((neg (neg-fp-zero zero)))
+ (if (member neg tail)
+ (push (ctype-of ,c) union-types)
+ (push zero unpaired)))))
+ (etypecase zero
+ (single-float (frob 0.0f0))
+ (double-float (frob 0.0d0))
+ #!+long-float
+ (long-float (frob 0.0l0)))))
+ ;; The actual member-type contains the XSET (with no FP zeroes),
+ ;; and a list of unpaired zeroes.
+ (let ((member-type (unless (and (xset-empty-p xset) (not unpaired))
+ (%make-member-type xset unpaired))))
+ (cond (union-types
+ (make-union-type t (if member-type
+ (cons member-type union-types)
+ union-types)))
+ (member-type
+ member-type)
+ (t
+ *empty-type*)))))
+
+(defun member-type-size (type)
+ (+ (length (member-type-fp-zeroes type))
+ (xset-count (member-type-xset type))))
+
+(defun member-type-member-p (x type)
+ (if (fp-zero-p x)
+ (and (member x (member-type-fp-zeroes type)) t)
+ (xset-member-p x (member-type-xset type))))
+
+(defun mapcar-member-type-members (function type)
+ (declare (function function))
+ (collect ((results))
+ (map-xset (lambda (x)
+ (results (funcall function x)))
+ (member-type-xset type))
+ (dolist (zero (member-type-fp-zeroes type))
+ (results (funcall function zero)))
+ (results)))
+
+(defun mapc-member-type-members (function type)
+ (declare (function function))
+ (map-xset function (member-type-xset type))
+ (dolist (zero (member-type-fp-zeroes type))
+ (funcall function zero)))
+
+(defun member-type-members (type)
+ (append (member-type-fp-zeroes type)
+ (xset-members (member-type-xset type))))
;;; A COMPOUND-TYPE is a type defined out of a set of types, the
;;; common parent of UNION-TYPE and INTERSECTION-TYPE.
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