;; If TYPE2 might be concealing something related to our class
;; hierarchy
(if (type-might-contain-other-types-p type2)
- ;; too confusing, gotta punt
+ ;; too confusing, gotta punt
(values nil nil)
;; ordinary case expected by old CMU CL code, where the taxonomy
;; of TYPE2's representation accurately reflects the taxonomy of
(type-specifier
(fun-type-returns type)))))
-;;; Since all function types are equivalent to FUNCTION, they are all
-;;; subtypes of each other.
+;;; The meaning of this is a little confused. On the one hand, all
+;;; function objects are represented the same way regardless of the
+;;; arglists and return values, and apps don't get to ask things like
+;;; (TYPEP #'FOO (FUNCTION (FIXNUM) *)) in any meaningful way. On the
+;;; other hand, Python wants to reason about function types. So...
(!define-type-method (function :simple-subtypep) (type1 type2)
- (declare (ignore type1 type2))
- (values t t))
+ (flet ((fun-type-simple-p (type)
+ (not (or (fun-type-rest type)
+ (fun-type-keyp type))))
+ (every-csubtypep (types1 types2)
+ (loop
+ for a1 in types1
+ for a2 in types2
+ do (multiple-value-bind (res sure-p)
+ (csubtypep a1 a2)
+ (unless res (return (values res sure-p))))
+ finally (return (values t t)))))
+ (macrolet ((3and (x y)
+ `(multiple-value-bind (val1 win1) ,x
+ (if (and (not val1) win1)
+ (values nil t)
+ (multiple-value-bind (val2 win2) ,y
+ (if (and val1 val2)
+ (values t t)
+ (values nil (or win1 win2))))))))
+ (3and (values-subtypep (fun-type-returns type1)
+ (fun-type-returns type2))
+ (cond ((fun-type-wild-args type2) (values t t))
+ ((fun-type-wild-args type1) (values nil t))
+ ((not (or (fun-type-simple-p type1)
+ (fun-type-simple-p type2)))
+ (values nil nil))
+ (t (multiple-value-bind (min1 max1) (fun-type-nargs type1)
+ (multiple-value-bind (min2 max2) (fun-type-nargs type2)
+ (cond ((or (> max1 max2) (< min1 min2))
+ (values nil t))
+ ((and (= min1 min2) (= max1 max2))
+ (3and (every-csubtypep (fun-type-required type1)
+ (fun-type-required type2))
+ (every-csubtypep (fun-type-optional type1)
+ (fun-type-optional type2))))
+ (t (every-csubtypep
+ (concatenate 'list
+ (fun-type-required type1)
+ (fun-type-optional type1))
+ (concatenate 'list
+ (fun-type-required type2)
+ (fun-type-optional type2)))))))))))))
(!define-superclasses function ((function)) !cold-init-forms)
res))
(!def-type-translator values (&rest values)
- (let ((res (make-values-type)))
+ (let ((res (%make-values-type)))
(parse-args-types values res)
res))
\f
(defun args-type-op (type1 type2 operation nreq default-type)
(declare (type ctype type1 type2 default-type)
(type function operation nreq))
+ (when (eq type1 type2)
+ (values type1 t))
(if (or (values-type-p type1) (values-type-p type2))
(let ((type1 (coerce-to-values type1))
(type2 (coerce-to-values type2)))
nil)))
(defun type-intersection (&rest input-types)
+ (%type-intersection input-types))
+(defun-cached (%type-intersection :hash-bits 8
+ :hash-function (lambda (x)
+ (logand (sxhash x) #xff)))
+ ((input-types equal))
(let ((simplified-types (simplified-compound-types input-types
#'intersection-type-p
#'type-intersection2)))
(if (and (> (length simplified-types) 1)
(some #'union-type-p simplified-types))
(let* ((first-union (find-if #'union-type-p simplified-types))
- (other-types (coerce (remove first-union simplified-types) 'list))
- (distributed (maybe-distribute-one-union first-union other-types)))
+ (other-types (coerce (remove first-union simplified-types)
+ 'list))
+ (distributed (maybe-distribute-one-union first-union
+ other-types)))
(if distributed
(apply #'type-union distributed)
(make-hairy-type
- :specifier `(and ,@(map 'list #'type-specifier simplified-types)))))
+ :specifier `(and ,@(map 'list
+ #'type-specifier
+ simplified-types)))))
(make-compound-type-or-something #'%make-intersection-type
simplified-types
(some #'type-enumerable
*universal-type*))))
(defun type-union (&rest input-types)
+ (%type-union input-types))
+(defun-cached (%type-union :hash-bits 8
+ :hash-function (lambda (x)
+ (logand (sxhash x) #xff)))
+ ((input-types equal))
(let ((simplified-types (simplified-compound-types input-types
#'union-type-p
#'type-union2)))
- (make-compound-type-or-something #'%make-union-type
+ (make-compound-type-or-something #'make-union-type
simplified-types
(every #'type-enumerable simplified-types)
*empty-type*)))
(macrolet ((frob (name var)
`(progn
(setq ,var (make-named-type :name ',name))
- (setf (info :type :kind ',name) #+sb-xc-host :defined #-sb-xc-host :primitive)
+ (setf (info :type :kind ',name)
+ #+sb-xc-host :defined #-sb-xc-host :primitive)
(setf (info :type :builtin ',name) ,var))))
;; KLUDGE: In ANSI, * isn't really the name of a type, it's just a
;; special symbol which can be stuck in some places where an
(error 'simple-type-error
:datum predicate-name
:expected-type 'symbol
- :format-control "~S is not a symbol."
+ :format-control "The SATISFIES predicate name is not a symbol: ~S"
:format-arguments (list predicate-name))))
;; Create object.
(make-hairy-type :specifier whole))
(t
(values nil t)))))
-(!define-superclasses number ((generic-number)) !cold-init-forms)
+(!define-superclasses number ((number)) !cold-init-forms)
;;; If the high bound of LOW is adjacent to the low bound of HIGH,
;;; then return true, otherwise NIL.
>= > t)))))))
(!cold-init-forms
- (setf (info :type :kind 'number) #+sb-xc-host :defined #-sb-xc-host :primitive)
+ (setf (info :type :kind 'number)
+ #+sb-xc-host :defined #-sb-xc-host :primitive)
(setf (info :type :builtin 'number)
(make-numeric-type :complexp nil)))
;; previously we threw an error here:
;; (error "Lower bound ~S is greater than upper bound ~S." l h))
;; but ANSI doesn't say anything about that, so:
- (specifier-type 'nil)
+ *empty-type*
(make-numeric-type :class 'integer
:complexp :real
:enumerable (not (null (and l h)))
;; as above, previously we did
;; (error "Lower bound ~S is not less than upper bound ~S." low high))
;; but it is correct to do
- (specifier-type 'nil)
- (make-numeric-type :class ',class :format ',format :low lb :high hb)))))
+ *empty-type*
+ (make-numeric-type :class ',class
+ :format ',format
+ :low lb
+ :high hb)))))
(!def-bounded-type rational rational nil)
*empty-type*))))))
(!define-type-method (member :complex-intersection2) (type1 type2)
- (block punt
+ (block punt
(collect ((members))
(let ((mem2 (member-type-members type2)))
(dolist (member mem2)
(dimensions '*))
(specialize-array-type
(make-array-type :dimensions (canonical-array-dimensions dimensions)
+ :complexp :maybe
:element-type (specifier-type element-type))))
(!def-type-translator simple-array (&optional (element-type '*)
(dimensions '*))
(specialize-array-type
(make-array-type :dimensions (canonical-array-dimensions dimensions)
- :element-type (specifier-type element-type)
- :complexp nil)))
+ :complexp nil
+ :element-type (specifier-type element-type))))
\f
;;;; utilities shared between cross-compiler and target system
projects / sbcl.git / blobdiff