(values
;; FIXME: This old CMU CL code probably deserves a comment
;; explaining to us mere mortals how it works...
- (and (sb!xc:typep type2 'sb!xc:class)
+ (and (sb!xc:typep type2 'classoid)
(dolist (x info nil)
(when (or (not (cdr x))
(csubtypep type1 (specifier-type (cdr x))))
(return
(or (eq type2 (car x))
- (let ((inherits (layout-inherits (class-layout (car x)))))
+ (let ((inherits (layout-inherits
+ (classoid-layout (car x)))))
(dotimes (i (length inherits) nil)
- (when (eq type2 (layout-class (svref inherits i)))
+ (when (eq type2 (layout-classoid (svref inherits i)))
(return t)))))))))
t)))
(destructuring-bind
(super &optional guard)
spec
- (cons (sb!xc:find-class super) guard)))
+ (cons (find-classoid super) guard)))
',specs)))
(setf (type-class-complex-subtypep-arg1 ,type-class)
(lambda (type1 type2)
;;(aver (not (eq type1 *wild-type*))) ; * isn't really a type.
(values (eq type1 type2) t))
+(!define-type-method (named :complex-=) (type1 type2)
+ (cond
+ ((and (eq type2 *empty-type*)
+ (intersection-type-p type1)
+ ;; not allowed to be unsure on these... FIXME: keep the list
+ ;; of CL types that are intersection types once and only
+ ;; once.
+ (not (or (type= type1 (specifier-type 'ratio))
+ (type= type1 (specifier-type 'keyword)))))
+ ;; things like (AND (EQL 0) (SATISFIES ODDP)) or (AND FUNCTION
+ ;; STREAM) can get here. In general, we can't really tell
+ ;; whether these are equal to NIL or not, so
+ (values nil nil))
+ ((type-might-contain-other-types-p type1)
+ (invoke-complex-=-other-method type1 type2))
+ (t (values nil t))))
+
(!define-type-method (named :simple-subtypep) (type1 type2)
(aver (not (eq type1 *wild-type*))) ; * isn't really a type.
(values (or (eq type1 *empty-type*) (eq type2 *wild-type*)) t))
(aver (not (eq type2 *wild-type*))) ; * isn't really a type.
(cond ((eq type2 *universal-type*)
(values t t))
- ((hairy-type-p type1)
+ ((type-might-contain-other-types-p type1)
+ ;; those types can be *EMPTY-TYPE* or *UNIVERSAL-TYPE* in
+ ;; disguise. So we'd better delegate.
(invoke-complex-subtypep-arg1-method type1 type2))
(t
;; FIXME: This seems to rely on there only being 2 or 3
(intersection2 (type-intersection2 type1
complement-type2)))
(if intersection2
- (values (eq intersection2 *empty-type*) t)
+ ;; FIXME: if uncertain, maybe try arg1?
+ (type= intersection2 *empty-type*)
(invoke-complex-subtypep-arg1-method type1 type2))))
(!define-type-method (negation :complex-subtypep-arg1) (type1 type2)
(intersection-type-types type2)))
(defun %intersection-complex-subtypep-arg1 (type1 type2)
- (any/type (swapped-args-fun #'csubtypep)
- type2
- (intersection-type-types type1)))
+ (type= type1 (type-intersection type1 type2)))
(defun %intersection-simple-subtypep (type1 type2)
(every/type #'%intersection-complex-subtypep-arg1
((and (not (intersection-type-p type1))
(%intersection-complex-subtypep-arg1 type2 type1))
type1)
+ ;; KLUDGE: This special (and somewhat hairy) magic is required
+ ;; to deal with the RATIONAL/INTEGER special case. The UNION
+ ;; of (INTEGER * -1) and (AND (RATIONAL * -1/2) (NOT INTEGER))
+ ;; should be (RATIONAL * -1/2) -- CSR, 2003-02-28
+ ((and (csubtypep type2 (specifier-type 'ratio))
+ (numeric-type-p type1)
+ (csubtypep type1 (specifier-type 'integer))
+ (csubtypep type2
+ (make-numeric-type
+ :class 'rational
+ :complexp nil
+ :low (if (null (numeric-type-low type1))
+ nil
+ (list (1- (numeric-type-low type1))))
+ :high (if (null (numeric-type-high type1))
+ nil
+ (list (1+ (numeric-type-high type1)))))))
+ (type-union type1
+ (apply #'type-intersection
+ (remove (specifier-type '(not integer))
+ (intersection-type-types type2)
+ :test #'type=))))
(t
(let ((accumulator *universal-type*))
(do ((t2s (intersection-type-types type2) (cdr t2s)))
(!define-type-method (union :complex-=) (type1 type2)
(declare (ignore type1))
- (if (some #'(lambda (x) (or (hairy-type-p x)
- (negation-type-p x)))
+ (if (some #'type-might-contain-other-types-p
(union-type-types type2))
(values nil nil)
(values nil t)))
(car-type2 (cons-type-car-type type2))
(cdr-type1 (cons-type-cdr-type type1))
(cdr-type2 (cons-type-cdr-type type2)))
- (cond ((type= car-type1 car-type2)
- (make-cons-type car-type1
- (type-union cdr-type1 cdr-type2)))
- ((type= cdr-type1 cdr-type2)
- (make-cons-type (type-union cdr-type1 cdr-type2)
- cdr-type1)))))
-
+ ;; UGH. -- CSR, 2003-02-24
+ (macrolet ((frob-car (car1 car2 cdr1 cdr2)
+ `(type-union
+ (make-cons-type ,car1 (type-union ,cdr1 ,cdr2))
+ (make-cons-type
+ (type-intersection ,car2
+ (specifier-type
+ `(not ,(type-specifier ,car1))))
+ ,cdr2))))
+ (cond ((type= car-type1 car-type2)
+ (make-cons-type car-type1
+ (type-union cdr-type1 cdr-type2)))
+ ((type= cdr-type1 cdr-type2)
+ (make-cons-type (type-union car-type1 car-type2)
+ cdr-type1))
+ ((csubtypep car-type1 car-type2)
+ (frob-car car-type1 car-type2 cdr-type1 cdr-type2))
+ ((csubtypep car-type2 car-type1)
+ (frob-car car-type2 car-type1 cdr-type2 cdr-type1))
+ ;; Don't put these in -- consider the effect of taking the
+ ;; union of (CONS (INTEGER 0 2) (INTEGER 5 7)) and
+ ;; (CONS (INTEGER 0 3) (INTEGER 5 6)).
+ #+nil
+ ((csubtypep cdr-type1 cdr-type2)
+ (frob-cdr car-type1 car-type2 cdr-type1 cdr-type2))
+ #+nil
+ ((csubtypep cdr-type2 cdr-type1)
+ (frob-cdr car-type2 car-type1 cdr-type2 cdr-type1))))))
+
(!define-type-method (cons :simple-intersection2) (type1 type2)
(declare (type cons-type type1 type2))
(let (car-int2
(defun defined-ftype-matches-declared-ftype-p (defined-ftype declared-ftype)
(declare (type ctype defined-ftype declared-ftype))
(flet ((is-built-in-class-function-p (ctype)
- (and (built-in-class-p ctype)
- (eq (built-in-class-%name ctype) 'function))))
+ (and (built-in-classoid-p ctype)
+ (eq (built-in-classoid-name ctype) 'function))))
(cond (;; DECLARED-FTYPE could certainly be #<BUILT-IN-CLASS FUNCTION>;
;; that's what happens when we (DECLAIM (FTYPE FUNCTION FOO)).
(is-built-in-class-function-p declared-ftype)
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