X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=mop.lisp;h=e42ee8bfbc991b33ceca85ea3eccd4015a405c54;hb=7e2d980b24a9fb31501fe3911582a6d85c374494;hp=0a6f6f1da3fdd7fcc09d63e11f5745aa7e012818;hpb=247fa39146e69b658f5adf5145a3472487eab321;p=hyperobject.git

diff --git a/mop.lisp b/mop.lisp
index 0a6f6f1..e42ee8b 100644
--- a/mop.lisp
+++ b/mop.lisp
@@ -11,7 +11,7 @@
 ;;;; in Text, HTML, and XML formats. This includes hyperlinking
 ;;;; capability and sub-objects.
 ;;;;
-;;;; $Id: mop.lisp,v 1.78 2003/06/20 08:50:38 kevin Exp $
+;;;; $Id: mop.lisp,v 1.84 2003/07/14 04:10:02 kevin Exp $
 ;;;;
 ;;;; This file is Copyright (c) 2000-2003 by Kevin M. Rosenberg
 ;;;; *************************************************************************
@@ -56,6 +56,9 @@
    (direct-rules :type list :initform nil :initarg :direct-rules
 		 :accessor direct-rules
 		 :documentation "List of rules to fire on slot changes.")
+   (direct-views :type list :initform nil :initarg :direct-views
+		 :accessor direct-views
+		 :documentation "List of views")
    (class-id :type integer :initform nil
 	     :accessor class-id
 	     :documentation "Unique ID for the class")
@@ -75,12 +78,14 @@
   (:documentation "Metaclass for Markup Language classes."))
 
 (defclass subobject ()
-  ((name-class :type symbol :initform nil :initarg :name-class :reader name-class)
-   (name-slot :type symbol :initform nil :initarg :name-slot :reader name-slot)
-   (lookup :type (or function symbol) :initform nil :initarg :lookup :reader lookup)
-   (lookup-keys :type list :initform nil :initarg :lookup-keys
-		:reader lookup-keys))
-  (:documentation "Contains subobject information"))
+  ((name-class :type symbol :initarg :name-class :reader name-class)
+   (name-slot :type symbol :initarg :name-slot :reader name-slot)
+   (subobj-class :type symbol :initarg :subobj-class :reader subobj-class)
+   (lookup :type (or function symbol) :initarg :lookup :reader lookup)
+   (lookup-keys :type list :initarg :lookup-keys :reader lookup-keys))
+  (:documentation "subobject information")
+  (:default-initargs :name-class nil :name-slot nil :subobj-class nil
+		     :lookup nil :lookup-keys nil))
 
 
 (defmethod print-object ((obj subobject) (s stream))
@@ -101,7 +106,6 @@
   (print-unreadable-object (obj s :type t :identity t)
     (format s "~S" (name obj))))
 
-#+(or cmu scl sbcl)
 (defmethod validate-superclass ((class hyperobject-class) (superclass standard-class))
   t)
 
@@ -149,7 +153,7 @@
       (when (and ,required (null value))
 	(error "hyperobject class slot ~A must have a value" name))
       (list name `',value))
-    #+(or allegro sbcl cmu scl)
+    #+(or allegro sbcl cmu scl openmcl)
     (declare (ignore slot-name required))
     )
 
@@ -225,28 +229,33 @@
 (defmethod compute-effective-slot-definition :around ((cl hyperobject-class)
 						      #+ho-normal-cesd name
 						      dsds)
-  #+ho-normal-cesd (declare (ignore name))
-  (let* ((esd (call-next-method))
-	 (dsd (car dsds))
+  (declare (ignore #+ho-normal-cesd name))
+  (let ((esd (call-next-method)))
+    (if (typep esd 'hyperobject-esd)
+	(compute-hyperobject-esd esd dsds)
+	esd)))
+
+(defun compute-hyperobject-esd (esd dsds)
+  (let* ((dsd (car dsds))
 	 (value-type (canonicalize-value-type (slot-value dsd 'value-type))))
     (multiple-value-bind (sql-type sql-length) 
 	(value-type-to-sql-type value-type)
-      (setf (slot-value esd 'sql-type) sql-type)
-      (setf (slot-value esd 'sql-length) sql-length))
+      (setf (esd-sql-type esd) sql-type)
+      (setf (esd-sql-length esd) sql-length))
     (setf (slot-value esd 'type) (value-type-to-lisp-type value-type))
-    (setf (slot-value esd 'value-type) value-type)
-    (setf (slot-value esd 'user-name)
-      (aif (slot-value dsd 'user-name)
-	   it
-	   (string-downcase (symbol-name (slot-definition-name dsd)))))
-    (setf (slot-value esd 'sql-name)
-      (aif (slot-value dsd 'sql-name)
-	   it
-	   (lisp-name-to-sql-name (slot-definition-name dsd))))
-    (setf (slot-value esd 'sql-name)
-      (aif (slot-value dsd 'sql-name)
-	   it
-	   (lisp-name-to-sql-name (slot-definition-name dsd))))
+    (setf (esd-value-type esd) value-type)
+    (setf (esd-user-name esd)
+	  (aif (dsd-user-name dsd)
+	       it
+	       (string-downcase (symbol-name (slot-definition-name dsd)))))
+    (setf (esd-sql-name esd)
+	  (aif (dsd-sql-name dsd)
+	       it
+	       (lisp-name-to-sql-name (slot-definition-name dsd))))
+    (setf (esd-sql-name esd)
+	  (aif (dsd-sql-name dsd)
+	       it
+	       (lisp-name-to-sql-name (slot-definition-name dsd))))
     (dolist (name '(print-formatter subobject hyperlink hyperlink-parameters
 		    description value-constraint indexed null-allowed
 		    unique short-description void-text read-only-groups
@@ -337,89 +346,37 @@ SQL name"
 
 ;;;; Class initialization function
 
-;; defines a slot-unbound method for class and slot-name, fills
-;; the slot by calling reader function with the slot values of
-;; the instance's reader-keys
-(defmacro def-lazy-reader (class slot-name reader &rest reader-keys)
-  (let* ((the-slot-name (gensym))
-	 (the-class (gensym))
-	 (the-instance (gensym))
-	 (keys '()))
-    (dolist (key reader-keys)
-      (push (list 'slot-value the-instance (list 'quote key)) keys))
-    (setq keys (nreverse keys))
-    `(defmethod slot-unbound (,the-class (,the-instance ,class)
-			      (,the-slot-name (eql ',slot-name)))
-      (declare (ignore ,the-class))
-      (setf (slot-value ,the-instance ,the-slot-name) (,reader ,@keys)))))
-
-
-#+lispworks
-(defun intern-eql-specializer (slot)
-  `(eql ,slot))
-
-#+(or sbcl cmu lispworks)
-(defun ensure-lazy-reader (class-name slot-name reader &rest reader-keys)
-  (let ((keys nil)
-	(gf (ensure-generic-function 'slot-unbound)))
-    (dolist (key reader-keys)
-      (push (list 'slot-value 'the-instance (list 'quote key)) keys))
-    (setq keys (nreverse keys))
-    (multiple-value-bind (method-lambda init-args-values)
-	(make-method-lambda
-	 gf
-	 (class-prototype (generic-function-method-class gf))
-	 #-lispworks
-	 `(lambda (the-class the-instance the-slot-name)
-	   (declare (ignore the-class))
-	   (setf (slot-value the-instance the-slot-name) (,reader ,@keys)))
-	 #+lispworks
-	 '(the-class the-instance the-slot-name)
-	 #+lispworks
-	 nil
-	 #+lispworks
-	 `(setf (slot-value the-instance the-slot-name) (,reader ,@keys))
-	 nil)
-      (add-method gf
-		  (apply
-		   #'make-instance (generic-function-method-class gf)
-		   ':specializers (list (class-of (find-class class-name))
-					(find-class class-name)
-					(intern-eql-specializer slot-name))
-		   ':lambda-list '(the-class the-instance the-slot-name)
-		   ':function (compile nil method-lambda)
-		   init-args-values)))))
-
-#+(or allegro scl)
-(progn
-  ;; One entry for each class with lazy readers defined.  The value is a plist mapping
-  ;; slot-name to a lazy reader, each of which is a list of a function and slot-names.
-  (defvar *lazy-readers* (make-hash-table))
+;; One entry for each class with lazy readers defined.  The value is a plist mapping
+;; slot-name to a lazy reader, each of which is a list of a function and slot-names.
+(defvar *lazy-readers* (make-hash-table))
 
 (defmethod slot-unbound :around ((class hyperobject-class) instance slot-name)
   (let ((lazy-reader (loop for super in (class-precedence-list class)
-			   as lazy-reader = (getf (gethash super *lazy-readers*) slot-name)
-			   when lazy-reader return it)))
+			 as lazy-reader = (getf (gethash super *lazy-readers*) slot-name)
+			 when lazy-reader return it)))
     (if lazy-reader
 	(setf (slot-value instance slot-name)
-	      (apply (car lazy-reader)
-		     (loop for arg-slot-name in (cdr lazy-reader)
-			   collect (slot-value instance arg-slot-name))))
-	;; No lazy reader -- defer to regular slot-unbound handling.
-	(call-next-method))))
-
-  ;; The reader is a function and the reader-keys are slot names.  The slot is lazily set to
-  ;; the result of applying the function to the slot-values of those slots, and that value
-  ;; is also returned.
-  (defun ensure-lazy-reader (class-name slot-name reader &rest reader-keys)
-    (setf (getf (gethash (find-class class-name) *lazy-readers*) slot-name)
-	  (list* reader (copy-list reader-keys))))
-
-  (defun remove-lazy-reader (class-name slot-name)
-    (setf (getf (gethash (find-class class-name) *lazy-readers*) slot-name)
-	  nil))
-  
-  ) ;; #+(or allegro scl)
+	  (if (atom lazy-reader)
+	      (make-instance lazy-reader)
+	    (apply (car lazy-reader)
+		   (loop for arg-slot-name in (cdr lazy-reader)
+		       collect (slot-value instance arg-slot-name)))))
+      ;; No lazy reader -- defer to regular slot-unbound handling.
+      (call-next-method))))
+
+;; The reader is a function and the reader-keys are slot names.  The slot is lazily set to
+;; the result of applying the function to the slot-values of those slots, and that value
+;; is also returned.
+(defun ensure-lazy-reader (class-name slot-name subobj-class reader 
+			   &rest reader-keys)
+  (setf (getf (gethash (find-class class-name) *lazy-readers*) slot-name)
+    (aif subobj-class
+	 it
+	 (list* reader (copy-list reader-keys)))))
+
+(defun remove-lazy-reader (class-name slot-name)
+  (setf (getf (gethash (find-class class-name) *lazy-readers*) slot-name)
+    nil))
 
 
 (defun finalize-subobjects (cl)
@@ -433,30 +390,24 @@ SQL name"
 		    (make-instance 'subobject
 				   :name-class (class-name cl)
 				   :name-slot (slot-definition-name slot)
-				   :lookup (if (atom subobj-def)
-					       subobj-def
-					       (car subobj-def))
-				   :lookup-keys (if (atom subobj-def)
-						    nil
-						    (cdr subobj-def)))))
+				   :subobj-class (when (atom subobj-def)
+						   subobj-def)
+				   :lookup (when (listp subobj-def)
+					     (car subobj-def))
+				   :lookup-keys (when (listp subobj-def)
+						  (cdr subobj-def)))))
 	       (unless (eq (lookup subobject) t)
-		 #+ignore ;; #-(or sbcl cmu lispworks)
-		 (eval
-		  `(hyperobject::def-lazy-reader ,(name-class subobject)
-		    ,(name-slot subobject) ,(lookup subobject)
-		    ,@(lookup-keys subobject)))
-		 #+(or sbcl cmu lispworks allegro scl)
 		 (apply #'ensure-lazy-reader 
 			(name-class subobject) (name-slot subobject)
-			(lookup subobject) (lookup-keys subobject)))
-	       (push subobject subobjects))))
+			(subobj-class subobject)
+			(lookup subobject) (lookup-keys subobject))
+		 (push subobject subobjects)))))
 	  ;; sbcl/cmu reverse class-slots compared to the defclass form
 	  ;; so re-reverse on cmu/sbcl
 	  #+(or cmu sbcl) subobjects
 	  #-(or cmu sbcl) (nreverse subobjects)
 	  )))
 
-
 (defun finalize-class-slots (cl)
   "Make sure all class slots have an expected value"
   (unless (user-name cl)
@@ -473,9 +424,9 @@ SQL name"
   (dolist (name '(user-name description version guid sql-name))
     (awhen (slot-value cl name)
 	   (setf (slot-value cl name)
-		 (etypecase (slot-value cl name)
-		   (cons (car it))
-		   ((or string symbol) it)))))
+	     (if (listp it)
+		 (car it)
+	       it))))
   
   (unless (sql-name cl)
     (setf (sql-name cl) (lisp-name-to-sql-name (class-name cl))))