(!begin-collecting-cold-init-forms)
\f
-;;; Just call %TYPEP.
-;;;
-;;; Note that when cross-compiling, SB!XC:TYPEP is interpreted as
-;;; a test that the host Lisp object OBJECT translates to a target SBCL
-;;; type TYPE. (This behavior is needed e.g. to test for the validity of
-;;; numeric subtype bounds read when cross-compiling.)
-(defun typep (object type)
- #!+sb-doc
- "Return T iff OBJECT is of type TYPE."
- (%typep object type))
-
;;; If TYPE is a type that we can do a compile-time test on, then
;;; return whether the object is of that type as the first value and
;;; second value true. Otherwise return NIL, NIL.
named-type
member-type
array-type
- sb!xc:built-in-class
+ built-in-classoid
cons-type)
(values (%typep obj type) t))
- (sb!xc:class
+ (classoid
(if (if (csubtypep type (specifier-type 'funcallable-instance))
(funcallable-instance-p obj)
(typep obj 'instance))
- (if (eq (class-layout type)
- (info :type :compiler-layout (sb!xc:class-name type)))
+ (if (eq (classoid-layout type)
+ (info :type :compiler-layout (classoid-name type)))
(values (sb!xc:typep obj type) t)
(values nil nil))
(values nil t)))
(values nil nil))
(alien-type-type
(values (alien-typep obj (alien-type-type-alien-type type)) t))
+ (negation-type
+ (multiple-value-bind (res win)
+ (ctypep obj (negation-type-type type))
+ (if win
+ (values (not res) t)
+ (values nil nil))))
(hairy-type
;; Now the tricky stuff.
(let* ((hairy-spec (hairy-type-specifier type))
(let ((predicate-name (second hairy-spec)))
(declare (type symbol predicate-name)) ; by ANSI spec of SATISFIES
(if (fboundp predicate-name)
- (values (not (null (funcall predicate-name obj))) t)
+ (let* (;; "Is OBJ of the SATISFIES type?" represented
+ ;; as a generalized boolean.
+ ;;
+ ;; (Why IGNORE-ERRORS? This code is used to try to
+ ;; check type relationships at compile time.
+ ;; Passing only-slightly-twisted types like
+ ;; (AND INTEGER (SATISFIES ODDP)) into the
+ ;; rather-significantly-twisted type dispatch
+ ;; system can easily give rise to oddities like
+ ;; calling predicates like ODDP on values they
+ ;; don't like. (E.g. on OBJ=#\NEWLINE when the
+ ;; above type is tested for TYPE= against
+ ;; STANDARD-CHAR, represented as a
+ ;; MEMBER-TYPE.) In such cases, NIL seems to be
+ ;; an appropriate answer to "is OBJ of the
+ ;; SATISFIES type?")
+ (gbool (ignore-errors (funcall predicate-name obj)))
+ ;; RAW coerced to a pure BOOLEAN value
+ (bool (not (not gbool))))
+ (values bool t))
(values nil nil)))))))))
\f
;;; Return the layout for an object. This is the basic operation for
;; KLUDGE: In order to really make this run at run time
;; (instead of doing some weird broken thing at cold load
;; time), we need to suppress a DEFTRANSFORM.. -- WHN 19991004
- (declare (notinline sb!xc:find-class))
- (class-layout (sb!xc:find-class 'null))))
- (t (svref *built-in-class-codes* (get-type x)))))
+ (declare (notinline find-classoid))
+ (classoid-layout (find-classoid 'null))))
+ (t (svref *built-in-class-codes* (widetag-of x)))))
-#!-sb-fluid (declaim (inline sb!xc:class-of))
-(defun sb!xc:class-of (object)
+#!-sb-fluid (declaim (inline classoid-of))
+(defun classoid-of (object)
#!+sb-doc
"Return the class of the supplied object, which may be any Lisp object, not
just a CLOS STANDARD-OBJECT."
- (layout-class (layout-of object)))
+ (layout-classoid (layout-of object)))
;;; Pull the type specifier out of a function object.
(defun extract-fun-type (fun)
- (specifier-type (%fun-type (%closure-function fun))))
+ (specifier-type (%simple-fun-type (%closure-fun fun))))
\f
;;;; miscellaneous interfaces
;;; Clear memoization of all type system operations that can be
;;; altered by type definition/redefinition.
+;;;
+;;; FIXME: This should be autogenerated.
(defun clear-type-caches ()
+ (declare (special *type-system-initialized*))
(when *type-system-initialized*
(dolist (sym '(values-specifier-type-cache-clear
values-type-union-cache-clear
csubtypep-cache-clear
type-intersection2-cache-clear
values-type-intersection-cache-clear))
- (funcall (symbol-function sym))))
+ (funcall (the function (symbol-function sym)))))
(values))
-;;; Like TYPE-OF, only we return a CTYPE structure instead of a type
-;;; specifier, and we try to return the type most useful for type
-;;; checking, rather than trying to come up with the one that the user
-;;; might find most informative.
+;;; This is like TYPE-OF, only we return a CTYPE structure instead of
+;;; a type specifier, and we try to return the type most useful for
+;;; type checking, rather than trying to come up with the one that the
+;;; user might find most informative.
(declaim (ftype (function (t) ctype) ctype-of))
(defun-cached (ctype-of
:hash-function (lambda (x) (logand (sxhash x) #x1FF))
(typecase x
(function
(if (funcallable-instance-p x)
- (sb!xc:class-of x)
+ (classoid-of x)
(extract-fun-type x)))
(symbol
(make-member-type :members (list x)))
(cons
(make-cons-type *universal-type* *universal-type*))
(t
- (sb!xc:class-of x))))
+ (classoid-of x))))
;;; Clear this cache on GC so that we don't hold onto too much garbage.
(pushnew 'ctype-of-cache-clear *before-gc-hooks*)
projects / sbcl.git / blobdiff