;;;; bootstrapping the meta-braid
;;;;
-;;;; The code in this file takes the early definitions that have been saved
-;;;; up and actually builds those class objects. This work is largely driven
-;;;; off of those class definitions, but the fact that STANDARD-CLASS is the
-;;;; class of all metaclasses in the braid is built into this code pretty
-;;;; deeply.
+;;;; The code in this file takes the early definitions that have been
+;;;; saved up and actually builds those class objects. This work is
+;;;; largely driven off of those class definitions, but the fact that
+;;;; STANDARD-CLASS is the class of all metaclasses in the braid is
+;;;; built into this code pretty deeply.
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
(i 0 (1+ i)))
((>= i no-of-slots)) ;endp rem-slots))
(declare (list rem-slots)
- (type sb-int:index i))
+ (type index i))
(setf (aref slots i) (first rem-slots)))
slots))
(t
classes)))
(defun !bootstrap-meta-braid ()
- (let* ((name 'class)
- (predicate-name (make-type-predicate-name name)))
- (setf (gdefinition predicate-name)
- #'(lambda (x) (declare (ignore x)) t))
- (do-satisfies-deftype name predicate-name))
(let* ((*create-classes-from-internal-structure-definitions-p* nil)
std-class-wrapper std-class
standard-class-wrapper standard-class
(t
(boot-make-wrapper (length slots) name))))
(proto nil))
- (when (eq name 't) (setq *the-wrapper-of-t* wrapper))
+ (when (eq name t) (setq *the-wrapper-of-t* wrapper))
(set (intern (format nil "*THE-CLASS-~A*" (symbol-name name))
*pcl-package*)
class)
(setq *standard-method-combination* smc))))
;;; Initialize a class metaobject.
-;;;
-;;; FIXME: This and most stuff in this file is probably only needed at init
-;;; time.
(defun !bootstrap-initialize-class
(metaclass-name class name
class-eq-wrapper source direct-supers direct-subclasses cpl wrapper
(!bootstrap-set-slot metaclass-name class slot-name value)))
(set-slot 'name name)
(set-slot 'source source)
- (set-slot 'type (if (eq class (find-class 't))
+ (set-slot 'type (if (eq class (find-class t))
t
+ ;; FIXME: Could this just be CLASS instead
+ ;; of `(CLASS ,CLASS)? If not, why not?
+ ;; (See also similar expression in
+ ;; SHARED-INITIALIZE :BEFORE (CLASS).)
`(class ,class)))
(set-slot 'class-eq-specializer
(let ((spec (allocate-standard-instance class-eq-wrapper)))
(make-class-predicate-name name)))
(set-slot 'defstruct-form
`(defstruct (structure-object (:constructor
- ,constructor-sym))))
+ ,constructor-sym)
+ (:copier nil))))
(set-slot 'defstruct-constructor constructor-sym)
(set-slot 'from-defclass-p t)
(set-slot 'plist nil)
(writer (values 'standard-writer-method
#'make-std-writer-method-function
(list 'new-value class-name)
- (list 't class-name)
+ (list t class-name)
"automatically generated writer method"))
(boundp (values 'standard-boundp-method
#'make-std-boundp-method-function
;; other sorts of brainos.
(dolist (e *built-in-classes*)
(dolist (super (cadr e))
- (unless (or (eq super 't)
+ (unless (or (eq super t)
(assq super *built-in-classes*))
(error "in *BUILT-IN-CLASSES*: ~S has ~S as a super,~%~
but ~S is not itself a class in *BUILT-IN-CLASSES*."
(cl:find-class symbol))))
;; a hack to add the STREAM class as a
;; mixin to the LISP-STREAM class.
- ((eq symbol 'sb-sys:lisp-stream)
+ ((eq symbol 'sb-kernel:lisp-stream)
'(structure-object stream))
((structure-type-included-type-name symbol)
(list (structure-type-included-type-name
symbol)))))
(error "~S is not a legal structure class name." symbol)))
\f
-(defun method-function-returning-nil (args next-methods)
- (declare (ignore args next-methods))
- nil)
-
-(defun method-function-returning-t (args next-methods)
- (declare (ignore args next-methods))
- t)
-
(defun make-class-predicate (class name)
(let* ((gf (ensure-generic-function name))
(mlist (if (eq *boot-state* 'complete)
(early-gf-methods gf))))
(unless mlist
(unless (eq class *the-class-t*)
- (let* ((default-method-function #'method-function-returning-nil)
+ (let* ((default-method-function #'constantly-nil)
(default-method-initargs (list :function
default-method-function))
(default-method (make-a-method 'standard-method
(setf (method-function-get default-method-function :constant-value)
nil)
(add-method gf default-method)))
- (let* ((class-method-function #'method-function-returning-t)
+ (let* ((class-method-function #'constantly-t)
(class-method-initargs (list :function
class-method-function))
(class-method (make-a-method 'standard-method
(reverse (rest (class-precedence-list class)))))
(sb-kernel:register-layout layout :invalidate nil)
- ;; Subclasses of formerly forward-referenced-class may be unknown
- ;; to CL:FIND-CLASS and also anonymous. This functionality moved
- ;; here from (SETF FIND-CLASS).
+ ;; Subclasses of formerly forward-referenced-class may be
+ ;; unknown to CL:FIND-CLASS and also anonymous. This
+ ;; functionality moved here from (SETF FIND-CLASS).
(let ((name (class-name class)))
(setf (cl:find-class name) lclass
;; FIXME: It's nasty to use double colons. Perhaps the
;; messing with raw CLASS-%NAME)
(sb-kernel::class-%name lclass) name)))))
-(eval-when (:load-toplevel :execute)
-
- (clrhash *find-class*)
- (!bootstrap-meta-braid)
- (!bootstrap-accessor-definitions t)
- (!bootstrap-class-predicates t)
- (!bootstrap-accessor-definitions nil)
- (!bootstrap-class-predicates nil)
- (!bootstrap-built-in-classes)
-
- (sb-int:dohash (name x *find-class*)
- (let* ((class (find-class-from-cell name x))
- (layout (class-wrapper class))
- (lclass (sb-kernel:layout-class layout))
- (lclass-pcl-class (sb-kernel:class-pcl-class lclass))
- (olclass (cl:find-class name nil)))
- (if lclass-pcl-class
- (assert (eq class lclass-pcl-class))
- (setf (sb-kernel:class-pcl-class lclass) class))
-
- (update-lisp-class-layout class layout)
-
- (cond (olclass
- (assert (eq lclass olclass)))
- (t
- (setf (cl:find-class name) lclass)))))
-
- (setq *boot-state* 'braid)
+(clrhash *find-class*)
+(!bootstrap-meta-braid)
+(!bootstrap-accessor-definitions t)
+(!bootstrap-class-predicates t)
+(!bootstrap-accessor-definitions nil)
+(!bootstrap-class-predicates nil)
+(!bootstrap-built-in-classes)
+
+(dohash (name x *find-class*)
+ (let* ((class (find-class-from-cell name x))
+ (layout (class-wrapper class))
+ (lclass (sb-kernel:layout-class layout))
+ (lclass-pcl-class (sb-kernel:class-pcl-class lclass))
+ (olclass (cl:find-class name nil)))
+ (if lclass-pcl-class
+ (aver (eq class lclass-pcl-class))
+ (setf (sb-kernel:class-pcl-class lclass) class))
+
+ (update-lisp-class-layout class layout)
+
+ (cond (olclass
+ (aver (eq lclass olclass)))
+ (t
+ (setf (cl:find-class name) lclass)))))
- ) ; EVAL-WHEN
+(setq *boot-state* 'braid)
(defmethod no-applicable-method (generic-function &rest args)
- ;; FIXME: probably could be ERROR instead of CERROR
- (cerror "Retry call to ~S."
- "There is no matching method for the generic function ~S~@
- when called with arguments ~S."
- generic-function
- args)
- (apply generic-function args))
+ (error "~@<There is no matching method for the generic function ~2I~_~S~
+ ~I~_when called with arguments ~2I~_~S.~:>"
+ generic-function
+ args))