X-Git-Url: http://git.kpe.io/?p=kmrcl.git;a=blobdiff_plain;f=attrib-class.lisp;h=505a8a443a9d65cf0ac7a6ffa205bfdafd8f5ec6;hp=0b837adda6f44f586a1a58aa25c4e079a6de41af;hb=a5e8d90b159f1a8dcef4e954a97cae6eb5396423;hpb=aa610805927518a648eb0da6a8713cd0a83337df

diff --git a/attrib-class.lisp b/attrib-class.lisp
index 0b837ad..505a8a4 100644
--- a/attrib-class.lisp
+++ b/attrib-class.lisp
@@ -7,7 +7,7 @@
 ;;;; Programmer:    Kevin M. Rosenberg
 ;;;; Date Started:  Apr 2000
 ;;;;
-;;;; $Id: attrib-class.lisp,v 1.5 2003/04/28 21:12:27 kevin Exp $
+;;;; $Id: attrib-class.lisp,v 1.13 2003/04/29 09:23:56 kevin Exp $
 ;;;;
 ;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
 ;;;;
@@ -21,74 +21,66 @@
 
 (in-package :kmrcl)
 
-(defclass attributes-dsd (standard-direct-slot-definition)
-  ((attributes :initarg :attributes :initform nil 
-	       :accessor attributes)))
+(defclass attributes-class (kmr-mop:standard-class)
+  ()
+  (:documentation "metaclass that implements attributes on slots. Based
+on example from AMOP"))
 
-(defclass attributes-esd (standard-effective-slot-definition)
-  ((attributes :initarg :attributes :initform nil 
-	       :accessor slot-definition-attributes)))
+(defclass attributes-dsd (kmr-mop:standard-direct-slot-definition)
+  ((attributes :initarg :attributes :initform nil
+	       :accessor dsd-attributes)))
 
+(defclass attributes-esd (kmr-mop:standard-effective-slot-definition)
+  ((attributes :initarg :attributes :initform nil 
+	       :accessor esd-attributes)))
 
-(defclass attributes-class (standard-class)
-  ()
-  )
+;; encapsulating macro for Lispworks
+(kmr-mop:process-slot-option attributes-class :attributes)
 
 #+(or cmu scl sbcl)
-(defmethod validate-superclass ((class attributes-class)
-				(superclass standard-class))
+(defmethod kmr-mop:validate-superclass ((class attributes-class)
+					(superclass kmr-mop:standard-class))
   t)
 
-(defmethod direct-slot-definition-class ((cl attributes-class) 
-					      &rest iargs &key attributes)
-  (declare (ignorable attributes))
-;;  (format t "attributes:~s iargs:~s~%" attributes iargs)
-  (find-class 'attributes-dsd))
-
-(eval-when (:compile-toplevel :load-toplevel :execute)
-  (when (>= (length (generic-function-lambda-list
-		     (ensure-generic-function
-		      'compute-effective-slot-definition)))
-	    3)
-    (push :ho-named-cesd-fun cl:*features*)))
-
-(defmethod compute-effective-slot-definition :around
-    ((cl attributes-class) #+ho-named-cesd-fun name dsds)
-  #+ho-named-cesd-fun (declare (ignore name))
-  (apply
-   #'make-instance 'attributes-esd 
-   :attributes (remove-duplicates (mapappend #'attributes dsds))
-   (compute-effective-slot-definition-initargs cl dsds))
-  )
+(defmethod kmr-mop:direct-slot-definition-class ((cl attributes-class) #+kmr-normal-dsdc &rest initargs)
+  (declare (ignore initargs))
+  (kmr-mop:find-class 'attributes-dsd))
 
+(defmethod kmr-mop:effective-slot-definition-class ((cl attributes-class) #+kmr-normal-dsdc &rest initargs)
+  (declare (ignore initargs))
+  (kmr-mop:find-class 'attributes-esd))
 
-#+ignore
-(defmethod compute-effective-slot-definition :around
-    ((cl attributes-class) #+ho-named-cesd-fun name dsds)
-  #+ho-named-cesd-fun (declare (ignore name))
-  (let ((normal-slot (call-next-method)))
-    (setf (slot-definition-attributes normal-slot)
-      (remove-duplicates
-       (mapappend #'slot-definition-attributes dsds)))
-    normal-slot))
+(defmethod kmr-mop:compute-effective-slot-definition :around
+    ((cl attributes-class) #+kmr-normal-cesd name dsds)
+  #+kmr-normal-cesd (declare (ignore name))
+  (let ((esd (call-next-method)))
+    (setf (esd-attributes esd) (remove-duplicates (mapappend #'dsd-attributes dsds)))
+    esd))
 
-
-(defmethod compute-slots ((class attributes-class))
+(defmethod kmr-mop:compute-slots ((class attributes-class))
   (let* ((normal-slots (call-next-method))
-	 (alist
-	  (mapcar
-	   #'(lambda (slot)
-	       (let ((attr-list (mapcar #'(lambda (attr) (cons attr nil))
-					(slot-definition-attributes slot))))
-		 (when attr-list
-		   (cons (mop::slot-definition-name slot) attr-list))))
-	   normal-slots)))
-    (setq alist (delete nil alist))
-    (cons (mop::make-instance 'mop::standard-effective-slot-definition
-	    :name 'all-attributes
-	    :initform `',alist
-	    :initfunction #'(lambda () alist))
-	  normal-slots)))
+	 (alist (delete
+		 nil
+		 (mapcar
+		  #'(lambda (slot)
+		      (let ((attr-list (mapcar #'(lambda (attr) (list attr))
+					       (esd-attributes slot))))
+			(when attr-list
+			  (cons (kmr-mop:slot-definition-name slot) attr-list))))
+		  normal-slots))))
+    (let ((attrib-slot  (make-instance 'attributes-esd
+				       :name 'all-attributes
+				       :initform `',alist
+				       :initfunction #'(lambda () alist)
+				       :allocation :instance
+				       :class class
+				       :documentation ""
+				       :type t
+				       ;; This is an attempted work-around -- lispworks doesn't work
+				       ;; it appears to setup storage someplace
+				       #+lispworks :location #+lispworks (length normal-slots)
+				       )))
+      (append normal-slots (list attrib-slot)))))
   
 (defun slot-attribute (instance slot-name attribute)
   (cdr (slot-attribute-bucket instance slot-name attribute)))
@@ -109,4 +101,6 @@
 	       slot-name instance attribute))
       attr-bucket)))
 
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (export '(attributes-class slot-attributes)))