X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=attrib-class.lisp;h=ee0228b7893e18d8415a4ea293c84dd9393d46bb;hb=23dc098eb50376f955b164df32cea3927ec7f945;hp=215089f03a0e3d3e868334005ec794294dfd98a2;hpb=0e5343fda28c559f11e003805727f4c625d178f3;p=kmrcl.git

diff --git a/attrib-class.lisp b/attrib-class.lisp
index 215089f..ee0228b 100644
--- a/attrib-class.lisp
+++ b/attrib-class.lisp
@@ -7,12 +7,13 @@
 ;;;; Programmer:    Kevin M. Rosenberg
 ;;;; Date Started:  Apr 2000
 ;;;;
-;;;; $Id: attrib-class.lisp,v 1.2 2002/10/06 13:30:17 kevin Exp $
+;;;; $Id: attrib-class.lisp,v 1.12 2003/04/29 07:52:38 kevin Exp $
 ;;;;
-;;;; This file, part of Kmrcl, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
 ;;;;
-;;;; Kmrcl users are granted the rights to distribute and use this software
-;;;; as governed by the terms of the GNU General Public License.
+;;;; KMRCL users are granted the rights to distribute and use this software
+;;;; as governed by the terms of the Lisp Lesser GNU Public License
+;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
 ;;;; *************************************************************************
 
 ;;;; Defines a metaclass that allows the use of attributes (or subslots)
@@ -20,62 +21,74 @@
 
 (in-package :kmrcl)
 
-(defclass attributes-dsd (mop::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-dsd (kmr-mop:standard-direct-slot-definition)
+  ((attributes :initarg :attributes :initform nil
+	       :accessor dsd-attributes)))
 
-(defclass attributes-esd (mop::standard-effective-slot-definition)
+(defclass attributes-esd (kmr-mop:standard-effective-slot-definition)
   ((attributes :initarg :attributes :initform nil 
-	       :accessor slot-definition-attributes)))
+	       :accessor esd-attributes)))
 
+;; encapsulating macro for Lispworks
+(kmr-mop:process-slot-option attributes-class :attributes)
 
-(defclass attributes-class (mop::standard-class)
-  ()
-  )
+#+(or cmu scl sbcl)
+(defmethod kmr-mop:validate-superclass ((class attributes-class)
+					(superclass kmr-mop:standard-class))
+  t)
 
-(defmethod mop::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))
+(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))
 
-(defmethod mop::compute-effective-slot-definition :around
-	   ((cl attributes-class) slot dsds)
-  (declare (ignorable slot))
+(defmethod kmr-mop:compute-effective-slot-definition :around
+    ((cl attributes-class) #+kmr-normal-cesd name dsds)
+  #+(and kmr-normal-cesd (not lispworks)) (declare (ignore name))
   (apply
    #'make-instance 'attributes-esd 
-   :attributes (remove-duplicates (gu:mapappend #'attributes dsds))
-   (excl::compute-effective-slot-definition-initargs cl dsds))
+   :attributes (remove-duplicates (mapappend #'dsd-attributes dsds))
+   (kmr-mop::compute-effective-slot-definition-initargs cl #+lispworks name dsds))
   )
 
-
 #+ignore
-(defmethod mop::compute-effective-slot-definition ((cl attributes-class) slot dsds)
-  (declare (ignorable slot))
-  (let ((normal-slot (call-next-method)))
-    (setf (slot-definition-attributes normal-slot)
-      (remove-duplicates
-       (mapappend #'slot-definition-attributes dsds)))
-    normal-slot))
-
-
-(defmethod mop::compute-slots ((class attributes-class))
+(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)))
+    (setq esd (change-class esd 'attributes-esd))
+    (print esd)
+    (print (remove-duplicates (mapappend #'dsd-attributes dsds)))
+    (setf (esd-attributes esd) (remove-duplicates (mapappend #'dsd-attributes dsds)))
+    esd))
+
+
+(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))))
+					(esd-attributes slot))))
 		 (when attr-list
-		   (cons (mop::slot-definition-name slot) attr-list))))
+		   (cons (kmr-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)))
+    (format t "normal-slots: ~A~%" normal-slots)
+    (format t "alist: ~A~%" alist)
+    (let ((attrib-slot  (make-instance 'attributes-esd
+			 :name 'all-attributes
+			 :initform `',alist
+			 :initfunction #'(lambda () alist))))
+      (format t "attrib-slot: ~A~%" attrib-slot)
+      (cons attrib-slot normal-slots))))
   
 (defun slot-attribute (instance slot-name attribute)
   (cdr (slot-attribute-bucket instance slot-name attribute)))
@@ -96,29 +109,6 @@
 	       slot-name instance attribute))
       attr-bucket)))
 
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (export '(attributes-class slot-attributes)))
 
-#||
-(in-package :kmrcl)
-
-(defclass credit-rating ()
-  ((level :attributes (date-set time-set))
-   (id :attributes (person-setting)))
-  (:metaclass kmrcl:attributes-class))
-(defparameter cr (make-instance 'credit-rating))
-
-(format t "~&date-set: ~a" (gu:slot-attribute cr 'level 'date-set))
-(setf (gu:slot-attribute cr 'level 'date-set) "12/15/1990")
-(format t "~&date-set: ~a" (gu:slot-attribute cr 'level 'date-set))
-  
-(defclass monitored-credit-rating (credit-rating)
-  ((level :attributes (last-checked interval date-set))
-   (cc :initarg :cc)
-   (id :attributes (verified))
-   )
-  (:metaclass gu:attributes-class))
-(defparameter mcr (make-instance 'monitored-credit-rating))
-
-(setf (gu:slot-attribute mcr 'level 'date-set) "01/05/2002")
-(format t "~&date-set for mcr: ~a" (gu:slot-attribute mcr 'level 'date-set))
-
-||#