(ensure-accessor 'reader ',reader-name ',slot-name))))
(declare (ignore .ignore.))
(truly-the (values t &optional)
- (funcall #',reader-name ,object)))))
+ ;; Don't give a style-warning about undefined function here.
+ (funcall (locally (declare (muffle-conditions style-warning))
+ #',reader-name)
+ ,object)))))
(defmacro accessor-set-slot-value (object slot-name new-value &environment env)
(aver (constantp slot-name env))
(slot-definition-class slotd)
(safe-p (slot-definition-class slotd))))
(writer-fun (etypecase location
- (fixnum (if fsc-p
- (lambda (nv instance)
- (check-obsolete-instance instance)
- (setf (clos-slots-ref (fsc-instance-slots instance)
- location)
- nv))
- (lambda (nv instance)
- (check-obsolete-instance instance)
- (setf (clos-slots-ref (std-instance-slots instance)
- location)
- nv))))
- (cons (lambda (nv instance)
- (check-obsolete-instance instance)
- (setf (cdr location) nv)))
+ (fixnum
+ (if fsc-p
+ (lambda (nv instance)
+ (check-obsolete-instance instance)
+ (setf (clos-slots-ref (fsc-instance-slots instance)
+ location)
+ nv))
+ (lambda (nv instance)
+ (check-obsolete-instance instance)
+ (setf (clos-slots-ref (std-instance-slots instance)
+ location)
+ nv))))
+ (cons
+ (lambda (nv instance)
+ (check-obsolete-instance instance)
+ (setf (cdr location) nv)))
(null
(lambda (nv instance)
(declare (ignore nv instance))
slotd
'(setf slot-value-using-class))))))
(checking-fun (lambda (new-value instance)
- (check-obsolete-instance instance)
- ;; If the SLOTD had a TYPE-CHECK-FUNCTION, call it.
- (let* (;; Note that this CLASS is not neccessarily
- ;; the SLOT-DEFINITION-CLASS of the
- ;; SLOTD passed to M-O-S-W-M-F, since it's
- ;; e.g. possible for a subclass to define
- ;; a slot of the same name but with no
- ;; accessors. So we need to fetch the SLOTD
- ;; when CHECKING-FUN is called, instead of
- ;; just closing over it.
- (class (class-of instance))
- (slotd (find-slot-definition class slot-name))
+ ;; If we have a TYPE-CHECK-FUNCTION, call it.
+ (let* (;; Note that the class of INSTANCE here is not
+ ;; neccessarily the SLOT-DEFINITION-CLASS of
+ ;; the SLOTD passed to M-O-S-W-M-F, since it's
+ ;; e.g. possible for a subclass to define a
+ ;; slot of the same name but with no accessors.
+ ;; So we need to fetch the right type check function
+ ;; from the wrapper instead of just closing over it.
+ (wrapper (valid-wrapper-of instance))
(type-check-function
- (when slotd
- (slot-definition-type-check-function slotd))))
+ (cadr (find-slot-cell wrapper slot-name))))
+ (declare (type (or function null) type-check-function))
(when type-check-function
(funcall type-check-function new-value)))
;; Then call the real writer.
(let* ((initargs (copy-tree
(make-method-function
(lambda (instance)
- (pv-binding1 (.pv. .calls.
- (bug "Please report this")
- (instance) (instance-slots))
+ (pv-binding1 ((bug "Please report this")
+ (instance) (instance-slots))
(instance-read-internal
.pv. instance-slots 0
(slot-value instance slot-name))))))))
initargs))
(defun make-std-writer-method-function (class-or-name slot-name)
- (let* ((class (when (eq *boot-state* 'complete)
+ (let* ((class (when (eq **boot-state** 'complete)
(if (typep class-or-name 'class)
class-or-name
(find-class class-or-name nil))))
(make-method-function
(lambda (nv instance)
(funcall check-fun nv instance)
- (pv-binding1 (.pv. .calls.
- (bug "Please report this")
- (instance) (instance-slots))
+ (pv-binding1 ((bug "Please report this")
+ (instance) (instance-slots))
(instance-write-internal
.pv. instance-slots 0 nv
(setf (slot-value instance slot-name) nv)))))
(make-method-function
(lambda (nv instance)
- (pv-binding1 (.pv. .calls.
- (bug "Please report this")
- (instance) (instance-slots))
+ (pv-binding1 ((bug "Please report this")
+ (instance) (instance-slots))
(instance-write-internal
.pv. instance-slots 0 nv
(setf (slot-value instance slot-name) nv)))))))))
(let* ((initargs (copy-tree
(make-method-function
(lambda (instance)
- (pv-binding1 (.pv. .calls.
- (bug "Please report this")
- (instance) (instance-slots))
+ (pv-binding1 ((bug "Please report this")
+ (instance) (instance-slots))
(instance-boundp-internal
.pv. instance-slots 0
(slot-boundp instance slot-name))))))))
;;; requires a GF call (for SLOT-DEFINITION-NAME) for each slot in
;;; list up to the desired one.
;;;
-;;; As of 1.0.7.26 SBCL hashes the effective slot definitions into a
-;;; simple-vector, with bucket chains made out of plists keyed by the
-;;; slot names. This fixes gives O(1) performance, and avoid the GF
-;;; calls.
+;;; Current SBCL hashes the effective slot definitions, and some
+;;; information pulled out from them into a simple-vector, with bucket
+;;; chains made out of plists keyed by the slot names. This fixes
+;;; gives O(1) performance, and avoid the GF calls.
;;;
-;;; MAKE-SLOT-VECTOR constructs the hashed vector out of a list of
-;;; effective slot definitions, and FIND-SLOT-DEFINITION knows how to
-;;; look up slots in that vector.
+;;; MAKE-SLOT-TABLE constructs the hashed vector out of a list of
+;;; effective slot definitions and the class they pertain to, and
+;;; FIND-SLOT-DEFINITION knows how to look up slots in that vector.
;;;
;;; The only bit of cleverness in the implementation is to make the
;;; vectors fairly tight, but always longer then 0 elements:
;;; -- As long as the vector always has a length > 0
;;; FIND-SLOT-DEFINITION doesn't need to handle the rare case of an
;;; empty vector separately: it just returns a NIL.
+;;;
+;;; In addition to the slot-definition we also store the slot-location
+;;; and type-check function for instances of standard metaclasses, so
+;;; that SLOT-VALUE &co using variable slot names can get at them
+;;; without additional GF calls.
+;;;
+;;; Notes:
+;;; It would be probably better to store the vector in wrapper
+;;; instead: one less memory indirection, one less CLOS slot
+;;; access to get at it.
+;;;
+;;; It would also be nice to have STANDARD-INSTANCE-STRUCTURE-P
+;;; generic instead of checking versus STANDARD-CLASS and
+;;; FUNCALLABLE-STANDARD-CLASS.
(defun find-slot-definition (class slot-name)
- (declare (symbol slot-name) (inline getf))
- (let* ((vector (class-slot-vector class))
+ (dolist (slotd (class-slots class))
+ (when (eq slot-name (slot-definition-name slotd))
+ (return slotd))))
+
+(defun find-slot-cell (wrapper slot-name)
+ (declare (symbol slot-name))
+ (let* ((vector (layout-slot-table wrapper))
(index (rem (sxhash slot-name) (length vector))))
(declare (simple-vector vector) (index index)
(optimize (sb-c::insert-array-bounds-checks 0)))
(when (eq key slot-name)
(return (car plist)))))))
-(defun make-slot-vector (slots)
+(defun make-slot-table (class slots &optional bootstrap)
(let* ((n (+ (length slots) 2))
- (vector (make-array n :initial-element nil)))
+ (vector (make-array n :initial-element nil))
+ (save-slot-location-p
+ (or bootstrap
+ (when (eq 'complete **boot-state**)
+ (let ((metaclass (class-of class)))
+ (or (eq metaclass *the-class-standard-class*)
+ (eq metaclass *the-class-funcallable-standard-class*))))))
+ (save-type-check-function-p
+ (unless bootstrap
+ (and (eq 'complete **boot-state**) (safe-p class)))))
(flet ((add-to-vector (name slot)
(declare (symbol name)
(optimize (sb-c::insert-array-bounds-checks 0)))
- (setf (svref vector (rem (sxhash name) n))
- (list* name slot (svref vector (rem (sxhash name) n))))))
- (if (eq 'complete *boot-state*)
+ (let ((index (rem (sxhash name) n)))
+ (setf (svref vector index)
+ (list* name (list* (when save-slot-location-p
+ (if bootstrap
+ (early-slot-definition-location slot)
+ (slot-definition-location slot)))
+ (when save-type-check-function-p
+ (slot-definition-type-check-function slot))
+ slot)
+ (svref vector index))))))
+ (if (eq 'complete **boot-state**)
(dolist (slot slots)
(add-to-vector (slot-definition-name slot) slot))
(dolist (slot slots)
projects / sbcl.git / blobdiff