;;; cold-load time.
(defvar *forward-referenced-layouts*)
(!cold-init-forms
- (setq *forward-referenced-layouts* (make-hash-table :test 'equal))
+ (setq *forward-referenced-layouts* (make-hash-table :test 'equal
+ #-sb-xc-host #-sb-xc-host
+ :synchronized t))
#-sb-xc-host (progn
(/show0 "processing *!INITIAL-LAYOUTS*")
(dolist (x *!initial-layouts*)
;;; type checking and garbage collection. Whenever a class is
;;; incompatibly redefined, a new layout is allocated. If two object's
;;; layouts are EQ, then they are exactly the same type.
+;;;
+;;; *** IMPORTANT ***
+;;;
+;;; If you change the slots of LAYOUT, you need to alter genesis as
+;;; well, since the initialization of layout slots is hardcoded there.
+;;;
+;;; FIXME: ...it would be better to automate this, of course...
(def!struct (layout
;; KLUDGE: A special hack keeps this from being
;; called when building code for the
;; This slot is known to the C runtime support code.
(n-untagged-slots 0 :type index)
;; Definition location
- (source-location nil))
+ (source-location nil)
+ ;; Information about slots in the class to PCL: this provides fast
+ ;; access to slot-definitions and locations by name, etc.
+ (slot-table #(nil) :type simple-vector)
+ ;; True IFF the layout belongs to a standand-instance or a
+ ;; standard-funcallable-instance -- that is, true only if the layout
+ ;; is really a wrapper.
+ ;;
+ ;; FIXME: If we unify wrappers and layouts this can go away, since
+ ;; it is only used in SB-PCL::EMIT-FETCH-WRAPPERS, which can then
+ ;; use INSTANCE-SLOTS-LAYOUT instead (if there is are no slot
+ ;; layouts, there are no slots for it to pull.)
+ (for-std-class-p nil :type boolean :read-only t))
(def!method print-object ((layout layout) stream)
(print-unreadable-object (layout stream :type t :identity t)
(when classoid-layout
(modify-classoid classoid)
(when subclasses
- (dohash (subclass subclass-layout subclasses)
+ (dohash ((subclass subclass-layout) subclasses :locked t)
(modify-classoid subclass)
(when invalidate
(invalidate-layout subclass-layout))))
(let* ((super (layout-classoid super-layout))
(subclasses (or (classoid-subclasses super)
(setf (classoid-subclasses super)
- (make-hash-table :test 'eq)))))
+ (make-hash-table :test 'eq
+ #-sb-xc-host #-sb-xc-host
+ :synchronized t)))))
(when (and (eq (classoid-state super) :sealed)
(not (gethash classoid subclasses)))
(warn "unsealing sealed class ~S in order to subclass it"
(when (zerop count)
(push successor free-objs))))))
(cond ((endp free-objs)
- (dohash (obj info obj-info)
+ (dohash ((obj info) obj-info)
(unless (zerop (first info))
(error "Topological sort failed due to constraint on ~S."
obj)))
(defun update-object-layout-or-invalid (object layout)
(if (typep (classoid-of object) 'standard-classoid)
(sb!pcl::check-wrapper-validity object)
- (%layout-invalid-error object layout)))
+ (sb!c::%layout-invalid-error object layout)))
;;; Simple methods for TYPE= and SUBTYPEP should never be called when
;;; the two classes are equal, since there are EQ checks in those
(o-sub (classoid-subclasses other)))
(if (and s-sub o-sub)
(collect ((res *empty-type* type-union))
- (dohash (subclass layout s-sub)
+ (dohash ((subclass layout) s-sub :locked t)
(declare (ignore layout))
(when (gethash subclass o-sub)
(res (specifier-type subclass))))
;;; late in the build-order.lisp-expr sequence, and be put in
;;; !COLD-INIT-FORMS there?
(defun !class-finalize ()
- (dohash (name layout *forward-referenced-layouts*)
+ (dohash ((name layout) *forward-referenced-layouts*)
(let ((class (find-classoid name nil)))
(cond ((not class)
(setf (layout-classoid layout) (make-undefined-classoid name)))