;;;; This software is made available AS IS, and Xerox Corporation makes no
;;;; warranty about the software, its performance or its conformity to any
;;;; specification.
-\f
+
(in-package "SB-PCL")
+\f
+(/show "starting pcl/macros.lisp")
(declaim (declaration
- ;; These three nonstandard declarations seem to be used
- ;; privately within PCL itself to pass information around,
- ;; so we can't just delete them.
- %class
+ ;; As of sbcl-0.7.0.6, SBCL actively uses this declaration
+ ;; to propagate information needed to set up nice debug
+ ;; names (as seen e.g. in BACKTRACE) for method functions.
%method-name
+ ;; These nonstandard declarations seem to be used privately
+ ;; within PCL itself to pass information around, so we can't
+ ;; just delete them.
+ %class
%method-lambda-list
;; This declaration may also be used within PCL to pass
;; information around, I'm not sure. -- WHN 2000-12-30
%variable-rebinding))
-;;; FIXME: This looks like SBCL's PARSE-BODY, and should be shared.
-(eval-when (:compile-toplevel :load-toplevel :execute)
-(defun extract-declarations (body &optional environment)
- ;;(declare (values documentation declarations body))
- (let (documentation
- declarations
- form)
- (when (and (stringp (car body))
- (cdr body))
- (setq documentation (pop body)))
- (block outer
- (loop
- (when (null body) (return-from outer nil))
- (setq form (car body))
- (when (block inner
- (loop (cond ((not (listp form))
- (return-from outer nil))
- ((eq (car form) 'declare)
- (return-from inner t))
- (t
- (multiple-value-bind (newform macrop)
- (macroexpand-1 form environment)
- (if (or (not (eq newform form)) macrop)
- (setq form newform)
- (return-from outer nil)))))))
- (pop body)
- (dolist (declaration (cdr form))
- (push declaration declarations)))))
- (values documentation
- (and declarations `((declare ,.(nreverse declarations))))
- body)))
-) ; EVAL-WHEN
+(/show "done with DECLAIM DECLARATION")
(defun get-declaration (name declarations &optional default)
(dolist (d declarations default)
(when (and (consp form) (eq (car form) name))
(return-from get-declaration (cdr form))))))
-(defmacro collecting-once (&key initial-value)
- `(let* ((head ,initial-value)
- (tail ,(and initial-value `(last head))))
- (values #'(lambda (value)
- (if (null head)
- (setq head (setq tail (list value)))
- (unless (memq value head)
- (setq tail
- (cdr (rplacd tail (list value)))))))
- #'(lambda nil head))))
-
-(defmacro doplist ((key val) plist &body body &environment env)
- (multiple-value-bind (doc decls bod)
- (extract-declarations body env)
- (declare (ignore doc))
- `(let ((.plist-tail. ,plist) ,key ,val)
- ,@decls
- (loop (when (null .plist-tail.) (return nil))
- (setq ,key (pop .plist-tail.))
- (when (null .plist-tail.)
- (error "malformed plist, odd number of elements"))
- (setq ,val (pop .plist-tail.))
- (progn ,@bod)))))
+(/show "pcl/macros.lisp 85")
+
+(defmacro doplist ((key val) plist &body body)
+ `(let ((.plist-tail. ,plist) ,key ,val)
+ (loop (when (null .plist-tail.) (return nil))
+ (setq ,key (pop .plist-tail.))
+ (when (null .plist-tail.)
+ (error "malformed plist, odd number of elements"))
+ (setq ,val (pop .plist-tail.))
+ (progn ,@body))))
+
+(/show "pcl/macros.lisp 101")
(defmacro dolist-carefully ((var list improper-list-handler) &body body)
`(let ((,var nil)
\f
;;;; FIND-CLASS
;;;;
-;;;; This is documented in the CLOS specification. FIXME: Except that
-;;;; SBCL deviates from the spec by having CL:FIND-CLASS distinct from
-;;;; PCL:FIND-CLASS, alas.
+;;;; This is documented in the CLOS specification.
+
+(/show "pcl/macros.lisp 119")
(defvar *find-class* (make-hash-table :test 'eq))
(defmacro find-class-cell-predicate (cell)
`(cadr ,cell))
-(defmacro find-class-cell-make-instance-function-keys (cell)
- `(cddr ,cell))
-
(defmacro make-find-class-cell (class-name)
(declare (ignore class-name))
'(list* nil #'constantly-nil nil))
(error "~S is not a legal class name." symbol))
(setf (gethash symbol *find-class*) (make-find-class-cell symbol)))))
+(/show "pcl/macros.lisp 157")
+
(defvar *create-classes-from-internal-structure-definitions-p* t)
(defun find-class-from-cell (symbol cell &optional (errorp t))
(or (find-class-cell-class cell)
(and *create-classes-from-internal-structure-definitions-p*
- (structure-type-p symbol)
- (find-structure-class symbol))
+ (or (structure-type-p symbol) (condition-type-p symbol))
+ (ensure-non-standard-class symbol))
(cond ((null errorp) nil)
((legal-class-name-p symbol)
(error "There is no class named ~S." symbol))
(find-class-cell-predicate cell))
(defun legal-class-name-p (x)
- (and (symbolp x)
- (not (keywordp x))))
+ (symbolp x))
(defun find-class (symbol &optional (errorp t) environment)
(declare (ignore environment))
;;; (DECLAIM (TYPE (MEMBER NIL :EARLY :BRAID :COMPLETE) *BOOT-STATE*))
(defvar *boot-state* nil)
-;;; Note that in SBCL as in CMU CL,
-;;; COMMON-LISP:FIND-CLASS /= SB-PCL:FIND-CLASS.
-;;; (Yes, this is a KLUDGE!)
+(/show "pcl/macros.lisp 187")
+
(define-compiler-macro find-class (&whole form
symbol &optional (errorp t) environment)
(declare (ignore environment))
(or (find-class-cell-class ,class-cell)
,(if errorp
`(find-class-from-cell ',symbol ,class-cell t)
- `(and (sb-kernel:class-cell-class
- ',(sb-kernel:find-class-cell symbol))
+ `(and (classoid-cell-classoid
+ ',(find-classoid-cell symbol))
(find-class-from-cell ',symbol ,class-cell nil))))))
form))
-(defun (setf find-class) (new-value symbol)
- (if (legal-class-name-p symbol)
- (let ((cell (find-class-cell symbol)))
- (setf (find-class-cell-class cell) new-value)
- (when (or (eq *boot-state* 'complete)
- (eq *boot-state* 'braid))
- (when (and new-value (class-wrapper new-value))
- (setf (find-class-cell-predicate cell)
- (fdefinition (class-predicate-name new-value))))
- (when (and new-value (not (forward-referenced-class-p new-value)))
-
- (dolist (keys+aok (find-class-cell-make-instance-function-keys
- cell))
- (update-initialize-info-internal
- (initialize-info new-value (car keys+aok) nil (cdr keys+aok))
- 'make-instance-function))))
- new-value)
- (error "~S is not a legal class name." symbol)))
+(defun (setf find-class) (new-value name &optional errorp environment)
+ (declare (ignore errorp environment))
+ (cond ((legal-class-name-p name)
+ (with-single-package-locked-error
+ (:symbol name "using ~A as the class-name argument in ~
+ (SETF FIND-CLASS)"))
+ (let ((cell (find-class-cell name)))
+ (setf (find-class-cell-class cell) new-value)
+ (when (and (eq *boot-state* 'complete) (null new-value))
+ (setf (find-classoid name) nil))
+ (when (or (eq *boot-state* 'complete)
+ (eq *boot-state* 'braid))
+ (when (and new-value (class-wrapper new-value)
+ (class-predicate-name new-value))
+ (setf (find-class-cell-predicate cell)
+ (fdefinition (class-predicate-name new-value))))
+ (update-ctors 'setf-find-class :class new-value :name name))
+ new-value))
+ (t
+ (error "~S is not a legal class name." name))))
+
+(/show "pcl/macros.lisp 230")
(defun (setf find-class-predicate)
(new-value symbol)
(defun find-wrapper (symbol)
(class-wrapper (find-class symbol)))
-(defmacro gathering1 (gatherer &body body)
- `(gathering ((.gathering1. ,gatherer))
- (macrolet ((gather1 (x) `(gather ,x .gathering1.)))
- ,@body)))
-
-(defmacro vectorizing (&key (size 0))
- `(let* ((limit ,size)
- (result (make-array limit))
- (index 0))
- (values #'(lambda (value)
- (if (= index limit)
- (error "vectorizing more elements than promised")
- (progn
- (setf (svref result index) value)
- (incf index)
- value)))
- #'(lambda () result))))
-
-;;; These are augmented definitions of LIST-ELEMENTS and LIST-TAILS from
-;;; iterate.lisp. These versions provide the extra :BY keyword which can
-;;; be used to specify the step function through the list.
-(defmacro *list-elements (list &key (by #'cdr))
- `(let ((tail ,list))
- #'(lambda (finish)
- (if (endp tail)
- (funcall finish)
- (prog1 (car tail)
- (setq tail (funcall ,by tail)))))))
-
-(defmacro *list-tails (list &key (by #'cdr))
- `(let ((tail ,list))
- #'(lambda (finish)
- (prog1 (if (endp tail)
- (funcall finish)
- tail)
- (setq tail (funcall ,by tail))))))
+(/show "pcl/macros.lisp 241")
(defmacro function-funcall (form &rest args)
`(funcall (the function ,form) ,@args))
(defmacro function-apply (form &rest args)
`(apply (the function ,form) ,@args))
-\f
+(/show "pcl/macros.lisp 249")
+\f
(defun get-setf-fun-name (name)
`(setf ,name))
(defsetf slot-value set-slot-value)
+\f
+(/show "finished with pcl/macros.lisp")